Hitachi 43FWX20B Training Download Page 11

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R914

C916

R912

C914

D901

DP-23, DP- 23G and DP-24 Chassis

+6.0 V Low Voltage Regulation

R913

Run

Start Up

Osc B+

16.3V

R907

R906

D905

D910

R911

PPS3

0.0685A

Sby +5V

T901

C969

D941

T901

150V

F902

T901

R908
R909

0.47

Ohm

D904

D906

I901

Driver/

Output IC

OCP

Control

+6V

I909

+5V

Reg

C98

C972

C973

I904

Regulator Photocoupler

R915

Hot Ground from

negative leg of

Bridge D901

R958

R957

D953

FB/OLP

D90

C918

R916

C917

R917

1.79A

Cold Ground from

pin 8 of T901

C904

Floating Ground

from pin 6 of T901

C915

ABS

D907

C911

C910A

C913

PAGE 01-03

Summary of Contents for 43FWX20B

Page 1: ...als Prepared by ALVIE RODGERS C E T 2002 and 2003 MODEL RELEASE DIGITAL HD READY PTV Chassis Model Aspect DP 27 51SWX20B 16X9 57SWX20B 65SWX20B DP 27D 57TWX20B 16X9 65TWX20B DP 26 65XWX20B 16X9 57XWX20B 51XWX20B DP 24 43FWX20B 16X9 DP 23G 57GWX20B 16X9 51GWX20B DP 23K 46F500 16X9 DP 23 57UWX20B 16X9 57F500 57G500 51UWX20B 51F500 51G500 ...

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Page 3: ...ng Lo Voltage Power Supply Circuit Diagram Explained 01 20 LEDs Visual Trouble Shooting Circuit Diagram DP 23 23G and DP 24 01 21 LEDs Visual Trouble Shooting Circuit Diagram DP 26 01 22 LEDs Visual Trouble Shooting Circuit Diagram DP 27 and DP 27D 01 23 SECTION 2 MICROPROCESSOR INFORMATION Microprocessor DATA COMMUNICATION Explanation 02 01 Microprocessor DATA COMMUNICATION Circuit Diagram DP 23 ...

Page 4: ...tal Drive IC Voltages and Waveforms Also Not Running Info 05 04 Sweep Loss Detection Circuit Diagram Explanation 05 05 Sweep Loss Detection Circuit Diagram 05 06 Vertical Output Circuit Diagram Explanation 05 07 Vertical Output Circuit Diagram 05 08 Pincushion Circuit Diagram 05 09 Pincushion Circuit Diagram 05 10 SECTION 6 DIGITAL CONVERGENCE CIRCUIT INFORMATION Digital Convergence Interconnect C...

Page 5: ...nctions 07 21 Remote CLU5722TSI Digital Convergence Mode Functions 07 22 Remote CLU4321UG Digital Convergence Mode Functions 07 23 Read from ROM Notes 07 24 DIGITAL CONVERGENCE ALIGNMENT PROCEDURE 07 25 Clearing RAM Clearing Digital Convergence Data 07 25 Centering Magnet Adjustment 07 25 Static Centering Adjustment Freeze Button 07 26 Green 3X3 Mode Adjustment 07 27 Red and Blue 3X3 Mode Adjustme...

Page 6: ... Rear Panel DP 24 43FWX20B Only Terminal Input Drawing 08 04 Signal PWB Drawing 08 05 Deflection PWB Drawing 08 06 Power Supply PWB Drawing 08 07 CRT PWBs Drawing 08 08 All but DP 24 Front Control PWBs Drawing 08 09 DP 24 Front Control PWBs Drawing 08 10 SECTION 9 THINGS YOU SHOULD KNOW SERVICE BULLETINS ETC This section changes often the index for this section is shown on the Things You Should Kn...

Page 7: ...DP 2X CHASSIS DIAGRAMS POWER SUPPLY INFORMATION SECTION 1 ...

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Page 9: ...round is monitored by three two low ohm resistors R908 R909 and R910 R908 R909 to hot ground Here the current drain of the internal SMOSFET is monitored If this current exceeds a specific value the voltage developed by these low ohm resis tors is routed back into pin 5 which is the Over Current Protection circuit This pin will inhibit the drive signal to the gate of the SMOSFET As soon as the exce...

Page 10: ...41 8 T902 9 C916 BD 1 2 R912 150V F902 2 6 T901 R908 R909 R910 0 47 Ohm D S D904 D906 C914 I901 Driver Output IC OCP Control 6V I909 5V Reg 3 2 1 C985 C972 C973 I904 Regulator Photocoupler 3 R915 Hot Ground from negative leg of Bridge D901 FB 1 2 R958 R957 D953 4 FB OLP 6 D908 C918 R916 C917 R917 1 79A Cold Ground Pin 11 Secondary of T901 C904 Floating Ground from pin 9 of T901 C915 4 ABS 5 D907 C...

Page 11: ...01 6 BD 1 2 150V F902 1 3 T901 R908 R909 0 47 Ohm D S D904 D906 I901 Driver Output IC OCP Control 6V I909 5V Reg 3 2 1 C985 C972 C973 I904 Regulator Photocoupler 3 R915 Hot Ground from negative leg of Bridge D901 FB 1 2 R958 R957 D953 4 FB OLP 6 D908 C918 R916 C917 R917 1 79A Cold Ground from pin 8 of T901 C904 Floating Ground from pin 6 of T901 C915 4 ABS 5 D907 C911 C910A AC C913 PAGE 01 03 ...

Page 12: ... circuit S902 This completes the path for the pulse generated from pin 14 11 of T901 38V for DP 26 DP 27 and DP 27D and 29V for DP 23 DP 23G and DP 24 to reach the Audio B rectifier diode D944 Here the Audio 38V 29V is generated and output from the PPS5 connector pins 1 2 and 3 and on to the Audio output circuit S903 This completes the path for the pulse generated from pin 10 7 of T901 Control 6V ...

Page 13: ...V is also routed to the Terminal PWB pin 21of the PST2 connector This turns on the Selec tor IC IX01 and the Monitor Out Circuit Power _2 is also routed to the PPS3 connector pin 4 and then to the Power Supply This high is routed to the base of Q909 turning it On When Q909 turns on it causes the following relays to energize RELAYS ENERGIZED BY Q909 Activated by Power _2 S905 This completes the pat...

Page 14: ...L921 R992 3 7 Gnd Gnd 5 6 7 L923 PPS4 6 1 33A SW 6V 7 S 903 SW 6V Supply Relay 4 3 Gnd Gnd C957 R961 R962 R963 4 POWER _1 Q903 Short Det See Power Supply Shut Down Circuit Q908 Q907 D954 R960 R959 D943 5 Gnd Off On Audio Gnd Audio Gnd Audio Gnd 35V 29V R985 D965 8 S 901 Main Power Relay AC AC to D902 High Voltage Power Supply Sby 5V comes from I909 pin 2 Sby 5V 2 Sby 5V 7 Q025 Q026 59 I001 Micro T...

Page 15: ...wn Circuit Q907 D954 R960 R959 D941 C954 7 5 Gnd Off On 35V Control 6V 11 S 901 Main Power Relay AC AC to D902 High Voltage Power Supply Sby 5V 2 T901 S 905 SW 35V Supply Relay D943 1 55 A D945 T901 C963 C958 PPS7 2 1 E912 S 906 Digital Module 10 V Relay 3 4 Sby 5V Audio Gnd 16 17 5 6 7 Audio Gnd N C Sby 10V DM 10V DM 10V DP 26 RELAY CONTROLS Q909 L922 C978 L921 R992 0 36 A From D942 0 006 A 5 POW...

Page 16: ... 13 L921 R992 3 7 Gnd Gnd 5 6 7 L923 PPS4 6 1 33A SW 6V 10 S 903 SW 6V Supply Relay 4 3 Gnd Gnd C957 R961 R962 R963 4 POWER _1 Q903 Short Det See Power Supply Shut Down Circuit Q908 Q907 D954 R960 R959 D943 5 Gnd Off On Audio Gnd Audio Gnd Audio Gnd 35V 38V R985 D965 11 S 901 Main Power Relay AC AC to D902 High Voltage Power Supply Sby 5V comes from I909 pin 3 Sby 5V 2 Sby 5V 7 Q025 Q026 59 I001 M...

Page 17: ...is then coupled to the receiver transistor The receiver transistor turns On and output a High from pin 3 This high is routed to the base of Q902 turning it On which grounds out the Vin at pin 3 of I901 disabling the power supply Q901 will keep a high on the base of Q902 as long as there is any voltage available at its Emitter The individual Shut Down circuits will be discussed later GENERAL INFORM...

Page 18: ...gative voltage drops or disappears the circuit will produce a Shutdown signal In Figure 5 there are two resistors of equal value One to the positive voltage shown here as 12V and one to the negative voltage shown here as 12V At their tie point neutral point the voltage is effectually zero 0 volts If however the negative voltage is lost due to an excessive load or defective negative voltage regulat...

Page 19: ...nhibit transistor Q903 from the power supply There are a total of 4 individual Shutdown inputs to the Relay Inhibit transistor Q903 from the Deflection Cir cuit For a total of 10 individual Shutdown inputs that will kill the Lo Voltage Power Supply Note The Hi Volt age Power Supply Shutdown will be discussed later All of the Cold Ground side Shutdown detection circuits can be categorized by the tw...

Page 20: ... to the power on off line When the set is not on or turned off the power on off line goes Low This Low pulls the cathode of D956 low removing the base voltage of Q912 turning it OFF This removes the emitter voltage from Q911 and this circuit can not function The base of Q912 is also connected to the SW 6V line This voltage must be active for this circuit to function B GENERATION FOR THE LOW VOLTAG...

Page 21: ...R959 R960 D954 S901 Relay See Relay Control Diagram for all Relay Controls C911 D907 AC D904 Q901 Q902 C920 C955 D952 PPS3 D962 HZS3C1 10 Q910 C969 D955 Q911 C970 Q912 I909 2 Sby 5V S 903 SW 6V Supply Relay 6V SW 6V C971 D956 4 D957 D960 D961 11 8 Protect _Sw 5V Reg SW 35V R980 SW 35V S 905 SW 35V Supply Relay To RP53 Monitors IP52 and IP53 To R298 Monitors IP81 Monitors SW 5V SW 3 3V SW 2 5V and ...

Page 22: ...is the regulation control signal This action causes pin 1 of I902 to manipulate the internal oscillator within I902 This in turn causes the fre quency of the drive pulse delivered to the Gate of the internal SMOSFET Switch Metal Oxide Semiconductor Field Effect Transistor to manipulate the frequency of the pulse generated on the primary of T902 The current drain of the internal SMOSFET is monitore...

Page 23: ...1 Hot Ground from pin 9 of T902 6 D914 D913 SW 115V R935 R931 D922 E906 0 5K I907 3 1 2 PPD6 L914 9 10 0 69A SW 115V SW 115V 11 T902 0 47 Ohm R941 R945 R946 12 C933 C927 Q905 C945 R943 R942 D924 D928 D915 3K E907 Deflection B 115V C942 C941 R936 X Ray Protect D927 D925 D926 8 T902 9 C926 R937 FB OCP 3 2 R929 150V From Bridge D902 F903 1 2 5 6 T902 R926 R927 R928 0 22 Ohm D S Cold Ground from pin 1...

Page 24: ... with its counter part positive volt age If at any time the negative voltage drops or disappears the circuit will produce a Shutdown signal In Figure 2 there are two resistors of equal value 15K One to the positive voltage SW 28V and one to the negative voltage SW 28V At their tie point neutral point the voltage is effec tually zero 0 volts If however the negative voltage is lost the neutral point...

Page 25: ... Loss Det R941 R945 R946 R944 R952 R951 See Signal Power Supply Lo Voltage Shut Down Circuit Diagram for continuation 12 C933 C927 Q905 C945 R943 R942 D924 D928 D927 D926 C946 D925 D936 D937 D940 14 T902 C935 C929 D917 15 T902 13 C934 C928 D915 L912 C949 D971 D918 L913 C950 PPD6 SW 28V 3 4 Gnd Gnd 10K E901 10K E902 3K E907 L914 9 10 0 69A 0 575A 1 09A L915 L916 5 1 2 SW 115V SW 115V Deflection B 1...

Page 26: ...ohm resistor R629 in series with the SW 28V The value of this resistor 0 68 ohm When the current demand increases the volt age drop across the resistor increases If the voltage drop is sufficient to reduce the voltage on the base of Q604 the transistor will conduct producing a Shut down signal through D608 through PPD3 pin 6 This signal is routed to the appropriate circuit on the Lo Voltage Shut D...

Page 27: ...n as screen brightness varies ABL is inverse proportionate to brightness This prevents false triggering Any fluctuations in High Voltage will also be reflected by the 50P output P P By monitoring the 50P 50 Pulse rises in High Voltage will be sensed If High Voltage climbs too high DH15 will fire and trigger a shut down event A loss of the Negative 5V will cause the positive 5V to be felt on the an...

Page 28: ...n quickly goes off before the others then the power supply that is being moni tored can be suspected RED LED D915 D915 is used to monitor the Start Up and Run voltage for the Driver IC I902 This IC is used to generate the fol lowing voltages SW 115V 220V HEATER SW 7V SW 7V SW 28V SW 28V This LED is attached to pin 4 of I902 If the voltage is missing the LED will not light GREEN LEDs D965 D954 D940...

Page 29: ...eg 3 2 5 1 1 92A C955 Power _1 R990 PPS3 4 4 R977 R976 C977 On Off 115V D915 R941 0 47 Ohm E907 D928 L914 10 R945 R946 T902 115V Over Current 1 55A Q905 D915 R930 Run I902 Driver Output IC I906 AC 4 Regulator Photocoupler 3 1 2 From I907 pin 2 of Regulator IC Start Up Osc B 16 3V 4 7 5P P R925 R924 D912 C923 R934 R932 D911 1 RED L E D From Relay S901 Hot Ground from pin 9 of T902 SW 115V GREEN L E...

Page 30: ... 3 2 5 1 1 92A C976 Power _1 R990 PPS3 4 4 R977 R978 C977 On Off 115V D916 R941 0 47 Ohm E907 D928 L914 10 R945 R946 T902 115V Over Current 1 55A Q905 D915 R930 Run I902 Driver Output IC I906 AC 4 Regulator Photocoupler 3 1 2 From I907 pin 2 of Regulator IC Start Up Osc B 16 3V 4 7 5P P R925 R924 D912 C923 R934 R932 D911 1 RED L E D From Relay S901 Hot Ground from pin 9 of T902 SW 115V GREEN L E D...

Page 31: ...1 SW 9V Reg 3 2 5 1 1 92A C976 Power _1 R990 PPS3 4 4 R977 R978 C977 On Off 115V D916 R941 0 47 Ohm E907 D928 L914 10 R945 R946 T902 115V Over Current 1 55A Q905 D915 R930 Run I902 Driver Output IC I906 AC 4 Regulator Photocoupler 3 1 2 From I907 pin 2 of Regulator IC Start Up Osc B 16 3V 4 7 5P P R925 R924 D912 C923 R934 R932 D911 1 RED L E D From Relay S901 Hot Ground from pin 9 of T902 SW 115V ...

Page 32: ...NOTES ...

Page 33: ...DP 2X CHASSIS DIAGRAMS MICROPROCESSOR INFORMATION SECTION 2 ...

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Page 35: ...r is Clock Data and Enable lines Clock Data and Enable lines for the Flex Converter are output from the Microprocessor at pins 52 Data 53 Clock and 55 FCENABLE The FCENABLE line is routed through the PFC1 connector pin 12 and the FCDATA line is routed through the PFC1 connector pin 11 the FC Clock is routed through the PFC1 connector pin 10 The Clock Data and Enable lines must be routed through th...

Page 36: ...Selector IC selects the appropriate input between the Tuner AV Inputs S Inputs or Compo nents Communication from the Microprocessor via pins 31 SDA2 and 28 SCL2 to connector PST2 pins 2 and 1 to IX04 pins 31 and 30 respectively 3D Y C IW01 IC mounted directly on the Terminal PWB The 3D Y C IC is a Luminance Chrominance separator as well as a 3D adder Separation takes place digitally Using advanced...

Page 37: ...al PWB 33 34 5 FCData 51 SDA2 I401 Rainforest Sweep Cont 30 31 SCL2 IA01 BBE Control 13 14 IW01 3D Y C 4 2 1 SDA1 SCL1 FC Clock FCData FC04 FLEX PinP PFC1 FC Enable 12 11 10 U303 16 14 6 15 Data Key Out 2 52 4 5 2 Clock Key Out 1 53 SDA1 SCL1 60 59 IZ01 Sub Video Chroma Y Pr Pb SW 13 14 IZ02 Main Video Chroma Y Pr Pb SW 13 14 IX02 Y Pr Pb SELECTOR 26 27 SDA2 SCL2 U302 Tuner PinP U301 Tuner 1 Main ...

Page 38: ...SDA1 SCL1 FC Clock FCData FC04 FLEX PinP PFC1 FC Enable 12 11 10 U303 16 14 6 15 Data Key Out 2 52 4 5 2 Clock Key Out 1 53 SDA1 SCL1 60 59 IZ01 Sub Video Chroma Y Pr Pb SW 13 14 IZ02 Main Video Chroma Y Pr Pb SW 13 14 IX02 Y Pr Pb SELECTOR 26 27 SDA2 SCL2 U302 Tuner PinP U301 Tuner 1 Main 5 SDA2 SCL2 4 4 SCL2 SDA2 5 SDA2 SCL2 PiP Main DM Enable Out UD2002 Digital Module ATSC Tuner 69 DM TXD 66 9 ...

Page 39: ...to the Microprocessor at Pin 92 Sub AFC is generated from the Sub Tuner U302 pin 16 Then routed to Q016 and Q017 Then into pin 92 of the Microprocessor The Microprocessor uses this input signal to align or adjust the precise Oscillator and Programmable di vider settings within the PinP Tuner for proper Reception 100 MAIN CCD IN The Microprocessor receives Main Sync information and strips the Close...

Page 40: ...te 3 Component 2 Y Composite 5 Aux Input 3 See Component Sync Separation Circuit Diagram Micro Processor Lo Hi Main CCD Sel 30 For 480i Y Component Only for CCD V Chip NTSC Only Composite 2 In Input 2 Input 2 Sub AFC Main AFC Main Sub 62 HBlk 64 VBlk V4 2 22 V3V Y4 C4 S Y1 V3 15 S C1 14 10 S 4 In 12 S4 Det Composite 4 Aux Input 4 S Y1 8 V4 Component 1 Y Input 1 480i Only 15 X1 14 Lo Hi Z 3 4 Lo Hi...

Page 41: ... Aux Input 3 See Component Sync Separation Circuit Diagram Micro Processor Lo Hi Main CCD Sel 30 For 480i Composite Only for CCD V Chip Composite 2 In Input 2 Input 2 Sub AFC Main AFC Main Sub 62 HBlk 64 VBlk V4 10 22 V3V Y4 C4 S Y1 V3 15 S C1 14 10 S 4 In 12 S4 Det Composite 4 Aux Input 4 S Y1 8 V4 Component 1 Y Input 1 480i Only 15 X1 14 Lo Hi Z 3 4 Lo Hi 93 92 10 11 9 73 74 24 Sub CCD Sel SD Se...

Page 42: ... Input 3 See Component Sync Separation Circuit Diagram Micro Processor Lo Hi Main CCD Sel 30 For 480i Y Component Only for CCD V Chip NTSC Only Composite 2 In Input 2 Input 2 Sub AFC Main AFC Main Sub 62 HBlk 64 VBlk V4 2 22 V3V Y4 C4 S Y1 V3 15 S C1 14 10 S 4 In 12 S4 Det Composite 4 Aux Input 4 S Y1 8 V4 Component 1 Y Input 1 480i Only 15 X1 14 Lo Hi Z 3 4 Lo Hi 93 92 10 11 9 73 74 24 Sub CCD Se...

Page 43: ...DP 2X CHASSIS DIAGRAMS VIDEO INFORMATION SECTION 3 ...

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Page 45: ...he NTSC circuit for this pur pose AUXILIARY INPUT This chassis utilizes 5 separate inputs plus a newly added input called DVI The following will break down those input routes to the Selector IC IX01 1 INPUT 1 This input is only for Component Inputs Y Pr Pb 31 5Khz to 33 75Khz ATSC and will not accept Compos ite on the Y input Input one s Y line is input directly into IX02 pin 59 Y Pr Pb Selector 2...

Page 46: ...e Main Video Chroma Processor IZ02 pin 4 The Chroma component is output from the Selector IC IX01 pin 47 through QX14 QX26 and into the Main Video Chroma Processor IZ02 pin 19 The responsibility of IZ02 is to now convert the separated Y C components of the Main picture into a usable format for the Flex Converter The Flex Converter FC4 utilizes component inputs Y Pr Pb or Y Cr Cb IZ02 outputs only ...

Page 47: ...QW01 83 84 88 QW04 QW02 VIDEO LPF Y LPF Y AMP QW09 XW01 QW10 QW12 C LPF C AMP QW13 XW02 QW14 QW15 QX13 QX14 MAIN OUT MON OUT IX01 A V Select 7 5 4 QZ10 QZ09 QZ08 TERMINAL PWB 58 56 51 49 53 47 44 2 7 9 PFT 13 15 4 For PinP Only PAGE 03 03 18 18 QV10 XV01 18 9 QV01 QV02 QV04 QV05 QV06 QV08 XV02 3 1 2 Y1 QX26 C Out ACO Y Out AYO 16 C1 QZ04 Video Chroma Processor Y1 In C1 In 16 2 QZ05 23 24 22 SEE DV...

Page 48: ...QX95 6db Chroma Tilt Correction IW01 3D Y C Separator V In QW01 83 84 88 QW04 QW02 VIDEO LPF Y LPF Y AMP QW09 XW01 QW10 QW12 C LPF C AMP QW13 XW02 QW14 QW15 QX13 QX14 MAIN OUT MON OUT IX01 A V Select 7 5 4 QZ10 QZ09 QZ08 TERMINAL PWB 58 56 51 49 53 47 44 10 5 3 PFT 13 15 4 For PinP Only 18 18 QV10 XV01 18 9 QV01 QV02 QV04 QV05 QV06 QV08 XV02 3 1 2 Y1 QX26 C Out ACO Y Out AYO 16 C1 QZ04 SUB Video C...

Page 49: ...DEO LPF Y LPF Y AMP QW09 XW01 QW10 QW12 C LPF C AMP QW13 XW02 QW14 QW15 QX13 QX14 MAIN OUT MON OUT IX01 A V Select 7 5 4 QZ10 QZ09 QZ08 TERMINAL PWB 58 56 51 49 53 47 44 2 7 9 PFT 13 15 4 For PinP Only 18 18 QV10 XV01 18 9 QV01 QV02 QV04 QV05 QV06 QV08 XV02 3 1 2 Y1 QX26 C Out ACO Y Out AYO 16 C1 QZ04 Video Chroma Processor Y1 In C1 In 16 2 QZ05 23 24 22 SEE DVI SIGNAL PATH DIAGRAM for DVI PATH V3...

Page 50: ...or further details NOT in the DP24 Chassis The Y line is input from the PET connector pin 5 into the Y Pr Pb Selector IX02 pin 53 The Pr line is input from the PET connector pin 3 into the Y Pr Pb Selector IX02 pin 57 The Pb line is input from the PET connector pin 7 into the Y Pr Pb Selector IX02 pin 55 4 DIGITAL TUNER ATSC UD2002 INPUT These inputs are provided from the Digital Tuner ATSC The AT...

Page 51: ...inforest IC The path is through Q405 and into the Rainforest IC I401 pin 9 2 OUTPUT from IZ01 PinP Sub Picture This output is routed from PinP Sub Y component Pin 24 through QZ01 to the connector PST2 pin 23 Then to the Flex Con verter U303 connector PFC1 pin 17 PinP Sub Cr Pr component Pin 22 through QZ03 to the connector PST2 pin 26 Then to the Flex Converter U303 connector PFC1 pin 19 PinP Sub ...

Page 52: ... G In 42 43 41 R Out B Out G Out QK08 QK07 QK06 Q420 Q421 Q422 Digital Conv Unit Dig R Out Dig B Out Dig G Out DEFLECTION PWB To CPT PWBs SIGNAL PWB SIGNAL PWB PDG 21 22 20 PPD1 4 5 2 PPS1 4 5 2 23 22 24 23 22 24 PST1 5 7 4 32 34 33 PFC1 PFC2 38 39 37 PAGE 03 08 PST2 24 23 26 PET SUB Pr Out 1 SUB Pb Out 1 SUB Y Out 1 7 5 3 DVI INPUT From DVI INPUT PWB DVI Det 64 12 28 30 29 D Sync 1 Y3 G In Cb Pb ...

Page 53: ...g B In Analog G In 42 43 41 R Out B Out G Out QK08 QK07 QK06 Q420 Q421 Q422 Digital Conv Unit Dig R Out Dig B Out Dig G Out DEFLECTION PWB To CPT PWBs SIGNAL PWB PDG 21 22 20 PPD1 4 5 2 PPS1 4 5 2 23 22 24 23 22 24 PST1 5 7 4 32 34 33 PFC1 PFC2 38 39 37 PST2 24 23 26 SUB Pr Out 1 SUB Pb Out 1 SUB Y Out 1 28 30 29 D Sync 1 Y3 G In Cb Pb B In Cr Pr R In QX22 QX23 QX24 6 D Sync 2 In 28 30 29 QX21 QX2...

Page 54: ...420 Q421 Q422 Digital Conv Unit Dig R Out Dig B Out Dig G Out DEFLECTION PWB To CPT PWBs PDG 21 22 20 PPD1 4 5 2 PPS1 4 5 2 23 22 24 23 22 24 PST1 5 7 4 32 34 33 PFC1 PFC2 38 39 37 PST2 24 23 26 PET SUB Pr Out 1 SUB Pb Out 1 SUB Y Out 1 7 5 3 DVI INPUT From DVI INPUT PWB DVI Det 64 12 28 30 29 D Sync 1 Y3 G In Cb Pb B In Cr Pr R In QX22 QX23 QX24 6 D Sync 2 In 28 30 29 QX21 QX20 QX19 6 D Sync 2 In...

Page 55: ... such as Burst Gate Pulse 0 9 2 1V Half Tone H AFC 3 0V SCP IN 3 7 9V CLAMP 1 7 3 3V Black Peak FBP IN YM P MUTE BLK 2 4 5 8V P Mute Max 9V BLK 1 5V 0 0 5V Internal 6 2 9V Blanking Pin 17 Pin 24 Pin 52 DP 2X RAINFOREST IC INFORMATION I401 Pin 17 SCP Black Peak This input is utilized for establishing the Black Peak level used in Black Peak expansion circuit Here the Black Peak is expanded towards B...

Page 56: ...CI L R Y C Analog Audio NTSC Video Analog Power Supply PTV Signal Board HD Video Y Pr Pb SCI Digital Power Supply CPU bus Y Pb Pr 16MB FLASH SCI 64MB SDRAM SH4 Main CPU Sub CPU Optical 64MB SDRAM DAC DAC NTSC Encoder Graphics Peripherals YSD 038 Graphics DAC Glue Logic 1 2 L R Y C V I2 C Memory Card I F Memory Card Board Memory Card I F SPD I F Memory Card I F ATSC CATV RF IN Main Board TS in TS o...

Page 57: ...drop the emitter volt age which in turn drops the cathode voltage of D403 This in turn will pull voltage away from pin 53 of the Rain forest IC I401 Internally this reduces the contrast and brightness voltage which is being controlled by the I2 C bus data communication from the Microprocessor arriving at pins 30 and 31 of the Rainforest IC and reduces the overall brightness preventing blooming as ...

Page 58: ...1 R450 R452 R453 RA54 D404 DH16 CH18 RH27 RH28 RH31 RH32 CH14 RH24 DH15 Sw 9V 12K DP24 18K DP26 DP27 D 33K DP23 ABL 9 10 5 1 Gnd DH13 CH17 IH01 7 DH14 RH09 CH10 RH23 LH06 Stops H Drive OVP 150K DP24 180K All Others HZ22 2L RH26 RD30EB4 PPD2 PPS2 Power Supply PWB 6 8K FBT 36 DAC2 ABL Sw 47K RH29 RH30 Micro I001 SDA2 SDA2 31 SCL2 SCL2 30 31 28 R483 R484 ABL Switch 2 2 ABL Switch ABL 19 HVcc 9V HVcc ...

Page 59: ...to turn the side gray panels off Through the Video Advanced features Menu the customer can now do this When the Side panels are turned off the overall average ABL level for the image is reduced To compensate QH03 ABL Switch is added When the customer selects Black Side panels the Microprocessor I001 tells the Rainforest IC I401 via I2C communication to output a high from the DAC2 line pin 36 This ...

Page 60: ...is transistor turns On and outputs the high from it s collector out it s emitter to mute the Audio described later Another circuit attached to the Mute Activation circuit is AC Loss Detection AC LOSS DETECTION AC is monitored by the AC Loss detection circuit The AC input from I903 to PPS3 pin 1 on the Power Supply PWB is routed and rectified by D416 This charges up C561 and through D415 to charge ...

Page 61: ...beled as V MUTE 1 The high from Q440 is routed to PSC pin 11 This high goes to Q8C1 base This turns on and supplies a ground to the following diodes D8A3 on the Blue CRT PWB D853 on the Green CRT PWB D803 on the Red CRT PWB When the diodes are supplied with a ground on their cathodes they remove the base voltage fro the RGB drivers Q8A3 Q853 and Q803 on the Blue Green and Red CRT PWBs FRONT AUDIO ...

Page 62: ...A08 DA09 RA50 QA11 RA49 RA48 9 V MUTE 2 Terminal PWB R555 C465 C466 R556 R559 Q443 D414 D412 8 H Blk 24 I401 Rainforest PPS2 Q444 R557 R558 V MUTE R510 R553 Q441 4 Spot Q442 R550 HVcc 9V R554 D413 C464 D411 R551 R548 Q440 V MUTE 2 R560 C467 C561 AC Sig R561 R563 10V p p R562 Q445 D415 D416 CRT PWB PSC R442 R439 D417 R511 Q412 FC H Blk Q411 FC V Blk PST2 V MUTE 1 11 8 PPD2 4 Deflection PWB HVcc 9V ...

Page 63: ...002N 2 15 IJ07 2 14 5 IJ02 NDC7002N 8 1 3 SDA SCL IJ04 3 4 5 39 41 38 37 17 13 Reset DVcc Vcc DACVcc 22 32 DACVccB Vcc DVcc Vcc 7 1 AVcc AVcc DJ06 DJ05 DJ29 QJ08 9 11 2 4 1 19 18 DVIV DVIH VSync HSync 3 5 26 23 DVIG DVIR IOG IOR QJ01 QJ02 7 31 DVIB IOB QJ03 12 40 DVIDET SCDT QJ06 6 8 13 14 15 NC NC 10 Reset SW 5 DVIV DVIH DVIG DVIR DVIB DVIDET GND GND GND GND GND GND 10 12 16 21 25 28 33 35 43 45 ...

Page 64: ...t pin 17 and the V Sync is output at pin 15 H Sync from IZ01 pin 17 This is routed through the transistor QZ13 then to the connector PST2 pin 28 From here it is routed into the PFC1 pin 15 connector on the Flex Converter U303 called S H In Sub Horizontal In The Flex Converter uses this signal for a timing signal as it performs it s conversions V Sync from IZ01 pin 15 This is routed through the tra...

Page 65: ... YPr Pb Selector 4 Sub Y 2 From 3 D Y C Sub H Sync Sub V Sync 30 Sub Component Y 50 QZ14 QZ15 QZ13 PFC2 U303 FC4 Unit Flex Converter 16 18 20 YOut PBOut PROut PFC1 8 7 15 14 M H In M V In S H In S V In S In 3 4 5 Main Y I402 11 7 HD Out 6 VD Out X Lo Hi 14 12 13 16 28 HD In Sync SW I401 Rainforest IC 15 VD In Control 6 D Sync2 In 6 VD Out HD Out VD Out HD Out QX22 QX19 17 15 17 15 D Sync1 In Y Out...

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Page 67: ...DP 2X CHASSIS DIAGRAMS AUDIO INFORMATION SECTION 4 ...

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Page 69: ...itor Audio Outputs LEFT and RIGHT OUTPUTS 43 Left and 35 Right This is the Left Total and Right Total output which represent the Audio associated with the Main picture The Lt and Rt represent the fact that the Audio has any Dolby encoding still embedded The outputs are then routed through the PST1 connector pins 10 Left and 9 Right to the Center Select IC I005 pins 2 and 12 respectively I005 is re...

Page 70: ...RS BBEout R BBEout L RIn LIn Tone R In Tone L In ROut LOut MODE 1 MODE 2 27 4 26 5 18 17 23 24 15 16 12 13 14 13 30 1 IA04 Right IA01 Audio Control Left 15 14 L Out 1 6 8 Left R Out 24 19 23 Right CA81 CA76 QA04 QA03 QA06 QA05 L 28 31 61 I001 R QA09 See AV Mute Circuit Diagram See AV Mute Circuit Diagram QA10 See AV Mute Circuit Diagram FL WO Out QA08 QA07 Left Out Right Out L R Micro PST1 L BBE L...

Page 71: ...DP 2X CHASSIS DIAGRAMS DEFLECTION INFORMATION SECTION 5 ...

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Page 73: ...f I401 as FBP In Here this signal is used as a comparison signal It is compared to the reference signal coming in at pin 16 Horizontal Sync If there are any differ ences between these two signals the output Drive signal from pin 26 is corrected NOTE When a 1080i signal is input through component inputs the Rainforest IC detects this as well and outputs the ABL Switch signal from pin 36 See ABL Swi...

Page 74: ...t to notice that the High Voltage circuit can not function without the Horizontal Deflection circuit providing a drive signal GENERAL INFORMATION The DP 2X deflection circuit differs from analog Hitachi projection televisions It utilizes in a sense two hori zontal output circuits One for Deflection and one for High Voltage This allows for better deflection stabilization and is not influenced by fl...

Page 75: ...O VCC HD1 In DP 2X SERIES CHASSIS HORIZONTAL DRIVE CIRCUIT 8 6 9 PPS2 PPS3 Signal PWB Q701 H Blk H Out Com1 E r r o r 1 To Micro for OSD Auto Prog SD AFC 8 1080i Through Mode See Voltage and Waveform Chart on next page Y2 In Rainforest IC 8 6 PPD2 Power Supply PWB Power Supply PWB I910 3 2 Power On Off SW HVcc R748 R748 D715 C725 R735 D709 Side Pin Modulator 2 Q709 Q706 To Dynamic Focus QF01 RH07 ...

Page 76: ...tputs a high from QN02 This high is used to shut off the CRT to prevent CRT burn How ever the Collector of QN02 is also routed to these two pins through diodes DN09 to pin 14 and DN10 to pin 3 When QN02 goes high it drives pin 3 and 14 high which turns off the internal oscillator of IH01 via pin 3 This action stops Horizontal Drive to the High Voltage circuit This action causes pin 1 to satu rate ...

Page 77: ...pecially during sweep loss This high is also routed through RN16 DN10 to pin 3 of IH01 which also kills the internal drive CONCERNING QN02 There are several factors that can cause QN02 to activate loss of vertical or horizontal blanking Loss of Vertical Blanking V Blk The Vertical pulse at the base of QN05 switches ON05 on and off at the vertical rate This discharges CN03 suf ficiently enough to p...

Page 78: ...High Voltage Driver IC 4 From I001 Micro Pin 47 Spot Inhibit When Vertical Drive is turned Off during adjustment I 2C SW 9V RN15 Stops Drive RN16 RH07 Stops High Voltage Drive Signals From being produced when Sweep Loss is detected From Power Supply Circuit Diagram RN18 SW 7V PPD2 RN17 5 CUT OFF RN12 RN14 To Q442 Signal 3of 3 See A V MUTE Circuit DN12 DN13 DN08 DN06 DN07 DN14 DN11 QN06 4 PPS2 5 DN...

Page 79: ...n 11 is also routed out as the Vertical Blanking pulse It s amplitude is around 21V p p and is sent to the following circuits Vertical Sweep Loss detection circuit Convergence circuit for vertical correction waveform generation To the PPS2 PPD2 connector pin 12 to be sent to various circuits on the signal PWB The Micro processor uses this signal to time it s OSD VERTICAL OUTPUT PULSE The Vertical ...

Page 80: ... Output Stage Vs 9 R604 R605 2 Inverting Input Buffer Out R616 C607 2200 25 R620 1 2 ohm R621 C608 To Side Pin Cushion Circuit To Dynamic Focus Circuit 6 Gnd Vs 28V D603 C604 7 C603 Ramp Gen 5 C602 NC R602 D601 4 Hight Adj V Def Yoke G V Def YokeR 11 Flyback Gen C605 R613 R614 V OUT L601 R619 1 2 ohm V Blk To Vertical Sweep Loss Detection Circuit To Conv Circuit X Ray Protect D608 Q604 R629 0 68 R...

Page 81: ...n routed out pin 7 to the base of Q703 This transistor has it s emitter off set above ground by D713 R747 back to the SW 9V and R704 This transistor drives the base of the Side Pin Cushion modulator transistor Q701 The collector of Q701 is connected to the Deflection SW 115V The DC offset voltage and Vertical parabolic side pin cushion com pensation wave form is now super imposed on the SW 115V wh...

Page 82: ...10 R704 D713 R708 R747 R707 R706 D701 R715 C701 R717 C701 D702 D703 X RAY Protect C722 R721 SW 11V R710 R711 R713 R712 D714 H Size Adj R709 C702 R742 V Parabolic C715 L703 R729 8 96V 4 39V 5 17V 5 14V 6 1 Q777 7 8 T701 Deflection Horizontal Driver Sensor Initialize Hi Magic Focus Hi To H Linearity off H Yoke Returns L704 L705 To H Deflection Yokes ...

Page 83: ...DP 2X CHASSIS DIAGRAMS DIGITAL CONVERGENCE INFORMATION SECTION 6 ...

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Page 85: ...the CRTs is what is used by the sensors for Magic Focus This allows the DCU to make adjustments regardless of circuit changes magnet influence or mechanical by actually using the light on the screen to make judgments EEPROM AND SRAM SHOWN IN FIGURE 1 8 Sensor Array Each color can be adjusted in any one of 117 different locations The internal workings of the DCU can actually make 256 adjustment poi...

Page 86: ...low Magic Focus to operate If the Magic Focus button is pressed the screen will display an adjustment grid instead This is done by pressing the PIP MODE button on the remote once 1 then pressing the PIP CH button This begins a preprogrammed generation of different light patterns Magic Focus memory memorizes the characteris tics of the light pattern produced by the digital convergence module If a c...

Page 87: ...d Q421 Dig Green and Q420 Dig Blue Then it arrives at the Rainforest IC I401 at pins 35 Dig Red 34 Dig Green and 33 Dig Blue When a character pulse arrives at any of these pins the internal color amp is saturated and the output is generated to the CRTs Any combination for these inputs generates either the pri mary color Red Green or Blue or the complementary color Red and Green which creates Yello...

Page 88: ...AGIC FOCUS SWITCH Located on the Front Control panel is the Magic Focus switch When Magic Focus is activated by the cus tomer pressing this switch the DCU enters the MAGIC FOCUS adjustment mode described earlier When the Customer presses the Magic Focus Switch the low is sent to the Microprocessor I001 pin 45 The Microprocessor then communicates with I007 pin 8 Level Shift and it outputs a low on ...

Page 89: ...ceiver 3 IR Out SK01 UKDG CS00591 Q417 Q433 Q438 Q428 Normal Lo PAGE 06 05 Stby 5V IR In 7 1 MAG SW SM09 GH 5V 5V MAG SW 1 5 Magic Focus 8 I007 3 3V 5V 8 Q418 Q419 Q420 Q421 Q422 37 38 39 33 34 35 QK06 QK07 QK08 Rainforest Dig OSD B Dig OSD G Dig OSD R OSD B OSD G OSD R B G R PPS1 4 5 6 7 3 2 1 Service Only BUSY QM06 32 34 33 OSD B OSD G OSD R Magic Sw Out 44 42 IR I001 Main Up From IK01 49 BUSY B...

Page 90: ... Signal PWB HMO1 2 IR Receiver 3 IR Out SK01 UKDG CS00591 Q417 Q433 Q438 Q428 Normal Lo Stby 5V IR In 3 1 MAG SW SM09 GH 5V 5V MAG SW 9 5 Magic Focus 2 I007 3 3V 5V 8 Q418 Q419 Q420 Q421 Q422 37 38 39 33 34 35 QK06 QK07 QK08 Rainforest Dig OSD B Dig OSD G Dig OSD R OSD B OSD G OSD R B G R PPS1 4 5 6 7 3 2 1 Service Only BUSY QM01 32 34 33 OSD B OSD G OSD R Magic Sw Out 44 42 IR I001 Main Up From I...

Page 91: ... VID1 HITACHI CLU 4321UG DP 23 DP 23G DP 24 REMOTE CONTROL CLU 4321UG p n HL01831 ROM READ Read Old ROM Data PHASE ADJUSTMENT CURSOR UP CURSOR DOWN CURSOR LEFT BLUE Select 13X9 Mode 5 Times CURSOR RIGHT GREEN Select 3X3 Mode 5 Times RED Select 7X5 Mode 5 Times INITIALIZE RASTER POSITION REMOVE COLOR ROM WRITE PAGE 06 07 CALCULATION VCR MODE ONLY CROSSHATCH VIDEO 5 Times ...

Page 92: ...E WIZARD POWER CURSOR LEFT BLUE 13X9 REMOVE COLOR CALCULATE INITIALIZE PIP MODE PIP CH WRITE TO ROM PRESS 2X READ OLD ROM DATA PRESS 2X CENTERING RASTER POSITION GREEN 3 X 3 CORRECTION BUTTONS CROSSHATCH VIDEO RASTER PHASE RED 7 X 5 DP 26 REMOTE CONTROL CLU 5721 TSI P N HL01821 PAGE 06 08 CURSOR UP CURSOR RIGHT CURSOR DOWN PIP ACCESS A V NET ASPECT VID 1 VID 2 VID 3 VID 4 VID 5 VIDEO ...

Page 93: ...VCR TV SOURCE WIZARD POWER CURSOR LEFT BLUE 13X9 REMOVE COLOR CALCULATE INITIALIZE PIP MODE PIP CH WRITE TO ROM PRESS 2X READ OLD ROM DATA PRESS 2X CENTERING RASTER POSITION GREEN 3 X 3 CORRECTION BUTTONS CROSSHATCH VIDEO RASTER PHASE RED 7 X 5 DP 27 DP 27D REMOTE CONTROL CLU 5722 TSI P N HL01822 PAGE 06 09 CURSOR UP CURSOR RIGHT CURSOR DOWN PIP ACCESS C C ASPECT VID 1 VID 2 VID 3 VID 4 VID 5 VIDE...

Page 94: ...VERLAY DIMENSIONS NORMAL MODE B R H SIZE V SIZE Centering Offset 952 25 7 34 5 69 1 69 1 69 1 69 1 69 1 69 1 34 5 25 7 17 76 5 535 17 76 5 76 5 76 5 76 5 76 5 76 5 76 5 76 5 VERTICAL SIZE 460mm HORIZONTAL SIZE 870mm PART NUMBER H312271 76 5 RED OFFSET 25mm BLUE OFFSET 30mm 43FWX20B DP 24 Chassis PAGE 06 10 ...

Page 95: ...RLAY DIMENSIONS NORMAL MODE B R H SIZE V SIZE Centering Offset 1018 25 7 37 0 74 0 74 0 74 0 74 0 74 0 74 0 37 0 27 5 18 2 81 8 573 18 2 81 8 81 8 81 8 81 8 81 8 81 8 81 8 81 8 VERTICAL SIZE 505mm HORIZONTAL SIZE 930mm PART NUMBER H312275 81 8 RED OFFSET 25mm BLUE OFFSET 35mm 46F500 DP 23K Chassis PAGE 06 11 ...

Page 96: ...BER H312272 90 8 NOTE Aspect may not be correct but dimensions are correct DIGITAL CONVERGENCE OVERLAY DIMENSIONS 51SWX20B 51UWX20B 51GWX20B 51XWX20B OVERLAY DIMENSIONS NORMAL MODE RED OFFSET 20mm BLUE OFFSET 35mm 51UWX20B DP 23 Chassis 51GWX20B DP 23G Chassis NOTE DO NOT USE THE HORIZONTAL SIZE MARKERS ON THE OVERLAY FOR DP 26 27 THESE HAVE BEEN CHANGED VALUE SHOWN IS CORRECT 51SWX20B DP 27 Chass...

Page 97: ... 1 22 0 101 5 710 22 0 101 5 101 5 101 5 101 5 101 5 101 5 101 5 101 5 VERTICAL SIZE 625mm HORIZONTAL SIZE 1140mm DP 26 27 27 27D HORIZONTAL SIZE 1160mm PART NUMBER H312273 101 5 RED OFFSET 20mm BLUE OFFSET 35mm 57UWX02B DP 23 Chassis 57GWX20B DP 23G Chassis NOTE DO NOT USE THE HORIZONTAL SIZE MARKERS ON THE OVERLAY FOR DP 26 27 27D THESE HAVE BEEN CHANGED VALUE SHOWN IS CORRECT 57SWX20B DP 27 Cha...

Page 98: ...4 6 104 6 52 1 38 6 25 3 115 7 809 19 7 115 7 115 7 115 7 115 7 115 7 115 7 115 7 115 7 VERTICAL SIZE 710mm HORIZONTAL SIZE 1325mm PART NUMBER H312274 115 7 RED OFFSET 20mm BLUE OFFSET 35mm NOTE DO NOT USE THE HORIZONTAL SIZE MARKERS ON THE OVERLAY FOR DP 26 27 27D THESE HAVE BEEN CHANGED VALUE SHOWN IS CORRECT 65SWX20B DP 27 Chassis 65TWX20B DP 27D Chassis 65XWX20B DP 26 Chassis PAGE 06 14 ...

Page 99: ...DP 2X CHASSIS DIAGRAMS ADJUSTMENT INFORMATION SECTION 7 ...

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Page 101: ...cus Adjust Normal Mode NTSC N A 11 Static Focus Adjust Normal Mode NTSC N A 12 DCU Character Set Up Normal Mode NTSC N A 14 Convergence Alignment Normal Mode NTSC CLEAR 15 Sensor Initialize Normal Mode NTSC N A 16 Blue Defocus Normal Mode NTSC N A 17 White Balance Adjustment Normal Mode NTSC N A 18 Sub Brightness Adjustment Normal Mode NTSC N A 19 Sub Picture Adjustment Normal Mode NTSC N A 20 Hor...

Page 102: ...n With power Off press the INPUT button on front panel and then press the POWER ON button then release The Service Menu is displayed 2 SCREEN VR ON FOCUS PACK Pre Set fully counter clockwise 3 Focus VR on focus pack Pre Set fully clockwise Allow set to operate at least 30 Minutes before beginning adjustments SCREEN VR FOCUS VR Projection Front View R G B R G B Screen VR Focus VR FOCUS PACK RED CRT...

Page 103: ...r data value 3F 3 Set G DRV COOL to center data value 3F 4 Set R G and B CUTOFF COOL data settings to 80 5 Adjust Screen VRs on Fo cus Pack fully counter clock wise 6 Choose SERVICE item 1 of I2 C ADJ Mode Select CURSOR RIGHT X and the Vertical will collapses 7 Adjust any Screen VR Screen VR should be turned clockwise gradually until that particular color is barely visible 8 Repeat for the other t...

Page 104: ...eing adjusted and adjust one color at a time The adjustment order of R G and B is just an example 2 Adjust the Focus VR for Red until Focus is achieved A Fine Adjust ment will be made later 3 Repeat for Blue and Green Projection Front View R G B R G B Screen VR Focus VR FOCUS PACK RED CRT GREEN CRT BLUE CRT NOTE PTSR connector on RED CRT PWB PTSG connector on GREEN CRT PWB PTSB connector on BLUE C...

Page 105: ...EXIT key This is the Phase adjustment mode 6 Adjust data value using the keys indicated in the chart until the data matches the values indi cated in the chart Exiting Adjustment Mode 7 Press AV NET key on remote control 8 Press PIP MODE key TWICE to store the information 9 When Green dots are displayed press the MUTE key twice to re turn to DCAM grid DCA stands for Digital Convergence Adjustment P...

Page 106: ...sshatch pattern 4 Mark the center of the Digital Convergence Crosshatch Pattern with finger 5 Press the SERVICE ONLY switch to return to normal mode 6 Enter the I2 C Service Menu and select Item H POSI and adjust the data so that the center of Video matches the loca tion of the Digital Cross hatch pattern noted in step 4 7 Exit from the I2 C Menu NOTE To enter the I2 C Bus alignment menu with Powe...

Page 107: ... Adjustment Procedure GREEN 1 Apply covers to the RED and BLUE lenses or short the 2P Sub Mini connector PTS on R B CRT PWB to produce only GREEN 2 Turn the Green deflection yoke and adjust the TILT until the green is level 3 2mm tolerance See diagram RED 4 Remove cover or PTS short from RED CRT and align RED with GREEN 5 1mm tolerance when compared to Green BLUE 6 Remove cover or PTS short from B...

Page 108: ...he way 5 Turn two Beam alignment mag net in any desired direction and move cross hatch center to posi tion found in step 3 See Fig ure 2 below 6 If image position does not shift when Green static focus VR is turned adjustment complete 7 If image position does move repeat steps 2 through 6 8 Conduct beam alignment for Red and Blue in the same way 9 Red R focus on focus pack 10 Blue B focus on focus...

Page 109: ...n NOTE After entering DCAM with each press of the Service Only Switch the picture will toggle be tween Video mode and DCU Grid Video Control should be set at Factory Preset condition Static Focus adjustment should be finished Adjustment Procedure 1 Turn the centering magnets of Red Green and Blue and adjust so that the center point of the cross hatch pattern satisfies the diagram and Offset Value ...

Page 110: ...DCU Grid 3 Select GREEN A CH and press the MENU but ton to remove Red and Blue 4 Adjust using R607 Vertical Size Adj VR to match marks on the Over lay See Figure Below NOTE Centering magnet may be moved to facilitate Distance is important not centering NOTE The Vertical Fre quency is shared between Normal and 16X9 HD modes Alternate Method Adjust Vertical Size until the size matches the chart belo...

Page 111: ...Green Adjustment mode and press ing the MENU button on remote ADJUSTMENT 1 Adjust using R711 Horz Size Adj VR Ad just Horizontal Size until the size matches the chart below 2 Press Power Off to exit DCAM Digital Conver gence Adjustment Mode NOTE On the DP 26 DP 27 and DP 27D DO NOT USE THE MARKS ON THE OVERLAY The Horizontal Size adjustment has been increased by 20mm on the 51 and 57 and 25mm on t...

Page 112: ...on Vertical and Horizontal Size adjustment should be completed Brightness 90 Contrast Max Input a NTSC DOT signal Adjustments procedure 1 Green CRT beam shape adjust ment 2 Short circuit 2P sub mini con nectors on Red and Blue CRT PWB to project only the Green beam 3 Turn the green static focus VR fully clockwise 4 Make the dot at the screen cen ter a true circle using the 4 Pole magnet shown in F...

Page 113: ...cylinder can be turned Be careful not to loosen the screw too much as this may cause movement of the lens cylinder when tightening 3 Rotate the cylinder back and forth to obtain the best focus point while observ ing the Cross Hatch Observe the center of the screen Hint Located just below the screen are the two wooden panels Remove the panels to allow access to the focus rings on the Lenses 4 After...

Page 114: ...ector on the CRT PWB PTS to remove any color not being adjusted and adjust one color at a time The adjustment order of R G and B is just an example 2 Adjust the Focus VR for Red until maximum Focus is achieved 3 Repeat for Blue and Green Projection Front View R G B R G B Screen VR Focus VR FOCUS PACK RED CRT GREEN CRT BLUE CRT Screen VRs Focus VRs ...

Page 115: ...ght keys ADJ PARAMETER ADJ DISP 77 DEMO WAIT 2f INT START 03 V SQUEEZE 00 4 Press the PIP MODE key 2 time to write the changed data into EEPROM First press ADJ PARAMETER ROM WRITE Is displayed for alarm 2nd press writes data into EEPROM Green dots appear after completion of op eration 5 Press the MUTE button 3 times exit back to DCAM 6 Press the Service Only Switch to exit from DCAM 7 Power set of...

Page 116: ...tch color of patterns INFO GREEN 0 RED ANT BLUE 5 Press the Cursor Left and Right buttons to change the Pattern Position Data in horizontal Di rection Press the Cursor Up and Down buttons to change the Pattern Position Data in Vertical Direction 6 Set the Data Values as shown in the Table below 7 Press the PIP MODE key 2 times to write the changed data into EEPROM First press ADJ PARAME TER ROM WR...

Page 117: ...5 76 5 76 5 76 5 76 5 76 5 VERTICAL SIZE 460mm HORIZONTAL SIZE 870mm PART NUMBER H312271 76 5 RED OFFSET 25mm BLUE OFFSET 30mm 46F500 DP 23K Only OVERLAY DIMENSIONS NORMAL MODE NOTE Aspect may not be correct but dimensions are correct B R H SIZE V SIZE Centering Offset 1018 25 7 37 0 74 0 74 0 74 0 74 0 74 0 74 0 37 0 27 5 18 2 81 8 573 18 2 81 8 81 8 81 8 81 8 81 8 81 8 81 8 81 8 VERTICAL SIZE 50...

Page 118: ...BER H312272 90 8 NOTE Aspect may not be correct but dimensions are correct DIGITAL CONVERGENCE OVERLAY DIMENSIONS 51SWX20B 51UWX20B 51GWX20B 51XWX20B OVERLAY DIMENSIONS NORMAL MODE RED OFFSET 20mm BLUE OFFSET 35mm 51UWX20B DP 23 Chassis 51GWX20B DP 23G Chassis NOTE DO NOT USE THE HORIZONTAL SIZE MARKERS ON THE OVERLAY FOR DP 26 27 THESE HAVE BEEN CHANGED VALUE SHOWN IS CORRECT 51SWX20B DP 27 Chass...

Page 119: ... 1 22 0 101 5 710 22 0 101 5 101 5 101 5 101 5 101 5 101 5 101 5 101 5 VERTICAL SIZE 625mm HORIZONTAL SIZE 1140mm DP 26 27 27 27D HORIZONTAL SIZE 1160mm PART NUMBER H312273 101 5 RED OFFSET 20mm BLUE OFFSET 35mm 57UWX02B DP 23 Chassis 57GWX20B DP 23G Chassis NOTE DO NOT USE THE HORIZONTAL SIZE MARKERS ON THE OVERLAY FOR DP 26 27 27D THESE HAVE BEEN CHANGED VALUE SHOWN IS CORRECT 57SWX20B DP 27 Cha...

Page 120: ...4 6 104 6 52 1 38 6 25 3 115 7 809 19 7 115 7 115 7 115 7 115 7 115 7 115 7 115 7 115 7 VERTICAL SIZE 710mm HORIZONTAL SIZE 1325mm PART NUMBER H312274 115 7 RED OFFSET 20mm BLUE OFFSET 35mm NOTE DO NOT USE THE HORIZONTAL SIZE MARKERS ON THE OVERLAY FOR DP 26 27 27D THESE HAVE BEEN CHANGED VALUE SHOWN IS CORRECT 65SWX20B DP 27 Chassis 65TWX20B DP 27D Chassis 65XWX20B DP 26 Chassis PAGE 07 20 ...

Page 121: ...G DP 23 DP 23G DP 24 REMOTE CONTROL CLU 4321UG p n HL01831 43FDX20B 51UWX20B 57UWX20B 51GWX20B 57GWX20B ROM READ Read Old ROM Data PHASE ADJUSTMENT CURSOR UP CURSOR DOWN CURSOR LEFT BLUE Select 13X9 Mode 5 Times CURSOR RIGHT GREEN Select 3X3 Mode 5 Times RED Select 7X5 Mode 5 Times INITIALIZE RASTER POSITION REMOVE COLOR ROM WRITE PAGE 07 21 CALCULATION VCR MODE ONLY CROSSHATCH VIDEO 5 Times ...

Page 122: ... CURSOR LEFT BLUE 13X9 REMOVE COLOR CALCULATE INITIALIZE PIP MODE PIP CH WRITE TO ROM PRESS 2X READ OLD ROM DATA PRESS 2X CENTERING RASTER POSITION GREEN 3 X 3 CORRECTION BUTTONS CROSSHATCH VIDEO RASTER PHASE RED 7 X 5 PAGE 07 22 CURSOR UP CURSOR RIGHT CURSOR DOWN PIP ACCESS A V NET ASPECT VID 1 VID 2 VID 3 VID 4 VID 5 VIDEO DP 26 REMOTE CONTROL CLU 5721 TSI P N HL01821 51XWX20B 57XWX20B 65XWX20B ...

Page 123: ...WER CURSOR LEFT BLUE 13X9 REMOVE COLOR CALCULATE INITIALIZE PIP MODE PIP CH WRITE TO ROM PRESS 2X READ OLD ROM DATA PRESS 2X CENTERING RASTER POSITION GREEN 3 X 3 CORRECTION BUTTONS CROSSHATCH VIDEO RASTER PHASE RED 7 X 5 PAGE 07 23 CURSOR UP CURSOR RIGHT CURSOR DOWN PIP ACCESS C C ASPECT VID 1 VID 2 VID 3 VID 4 VID 5 VIDEO DP 27 DP 27D REMOTE CONTROL CLU 5722 TSI P N HL01822 51SWX20B 57SWX20B 65S...

Page 124: ...ress Screen goes black then re appears with green dots Press the MUTE button to return to Digi tal convergence grid EXAMPLE Sometimes the Magic Focus will not run cor rectly and will return an error code Sometimes after Magic Focus is run but the convergence appears off after completion OTHER IMPORTANT INFO Many times after a complete adjustment when initializing the Magic Focus sensors an error c...

Page 125: ...he POWER Button and release picture appears Release the SERVICE ONLY SWITCH again DCU Grid appars Internal Digital Cross Hatch Signal is projected Service only switch is on the Deflection PWB Receive any NTSC signal Crosshair if possible Set SCREEN FORMAT TO NORMAL mode Align the G R B individual center crosses to their respective marks on the Overlay using the Yoke Center Magnets Red Left Blue Ri...

Page 126: ...uttons to match the selected Crosshatch red and blue to the green Press the Remote FREEZE button to exit Raster Position extra lines will disappear Green should already be centered Internal Cross Hatch Signal selected B Extra Lines appear indicating Raster Mode Adjust Color Left Adjust Color Up Adjust Color Down Adjust Color Right Remote select TO SELECT COLORS Info Selects GREEN 0 Selects RED ANT...

Page 127: ...MENU button to project the green tube only Selects GREEN Before Adjustment After Adjustment Moves location of Adjustment Point Intersection of blinking cursor Remote Lines symmetrically aligned at Adjustment Points Cursor blinks at intervals of 3 to indicate the 3X3 Adjustment Mode C Green Only 3X3 Mode 9 Adjustment Points INFO Button is used for selecting the 3X3 Adjustment Mode when pressed 5 ti...

Page 128: ...erge the selected color onto green Convergence 3x3 Mode 9 Point Adjustment Red Blue Coarse Alignment Green always projected Selects Blue Crosshatch is yellow when the red and green crosshatches align Crosshatch is cyan when the blue and green crosshatches align Has the Blue 3x3 Convergence Mode been aligned Yes Press Menu Button D No White internal crosshatch should be projected Calculation averag...

Page 129: ...on to Calculate points in between the adjustment points 35 convergence adjustment points in 7X5 mode E Use the Remote Cursor and 2 4 5 6 buttons to perform convergence point adjustment at every other intersection of the crosshatch Adjust Color Left Adjust Color Up Adjust Color Down Adjust Color Right Remote Selects GREEN Remote If selected Color isn t already Red it will take 6 presses of 0 button...

Page 130: ...sshatch Press the Remote ANT button to select the Blue Convergence Adjustment Mode Remote Perform adjustment at every other intersection Has the Blue 7X5 Convergence Mode been aligned Yes Press Menu Button E White Internal Crosshatch should be projected Cursor Blinks Blue Cursor blinks red at intervals of 2 to indicate the 7x5 mode Selects Blue for adjustment F Press the Remote VID 3 button to Cal...

Page 131: ...or and 2 4 5 6 buttons to perform convergence point adjustment at every other intersection of the crosshatch 117 convergence adjustment points in 13X9 mode G Press the Remote VID 3 button to Calculate points in between the adjustment points Adjust Color Left Adjust Color Down Adjust Color Right Selects GREEN Remote If selected Color isn t already Blue it will take 6 presses of Source button Remote...

Page 132: ...atch Press the Remote ANT button to select the Blue Convergence Adjustment Mode Remote Perform adjustment at every intersection Has the Blue 13X9 Convergence Mode been aligned Yes Press the Menu Button to Display all colors G White Internal Crosshatch should be projected Cursor Blinks Blue Cursor blinks red indicating the 13X9 mode Selects Blue for adjustment No Press the Remote VID 3 button to Ca...

Page 133: ...nsor Initialization must be done after a Write to ROM STORE in order for MAGIC FOCUS to operate If this is not done when HD FOCUS is run a single Cross Hire will be displayed Return to the Digital Conv Adjustment Mode and Initialize the Sensors I This screen appears with a series of green dots indicating a successful Write to ROM or Store Note If Red dots appear retry the process If Red dots appea...

Page 134: ...ch Finished with Digital Convergence Setup for NORMAL mode Press the Service Only Switch to Exit to Normal Mode I INITIAL N Press the Remote PIP CH button to begin the Initialization Mode Screen projects different light patterns during the Initialization Mode Press the Remote PIP MODE button once CONVERGENCE ADJUSTMENT OPERATION COMPLETE This screen appears with a series of green dots indicating s...

Page 135: ... press the Power button Press the Service Only switch again to display the DCU Grid then Read the Old ROM data SWAP pressed twice Press the MENU button to Remove colors not being adjusted Press 2 4 5 6 buttons to move Adjustment Point Press Cursor Up Down Left Right to Adjust Convergence When adjustment is complete STORE the New DATA by pressing the PIP MODE button twice Press the MUTE button to r...

Page 136: ...plication Initialize Magic Focus 1 VF Error Replace DCU X X 2 2 Connect 1 1 Darken Outside Light 2 Placing of Sensor 3 Is pattern hitting sensor 4 Check connection and solder bridge of sensor 5 Replace Sensor 6 Replace Sensor PWB 7 Sensor Connector check 8 Replace DCU 9 Adjustment check H V size centering X 3 2 A D Level Same as Error Code 2 X X 4 Over Flow 1 Check the placement 2 Adjustment check...

Page 137: ...re 1 Receive any NTSC cross hatch signal 2 Turn the B FOCUS VR fully clockwise 3 Adjust BLUE defocus ac cording to the following specifications 1mm on each side equal ing 2mm total See figure Below Projection Front View R G B R G B Screen VR Focus VR FOCUS PACK RED CRT GREEN CRT BLUE CRT Screen VRs Focus VRs Blue Defocus Sticking Out Center of Blue crosshatch line ...

Page 138: ...y press ing MENU button 4 Input a gray scale signal into any Video input and select that input using the VID but tons on the remote or front control panel 5 Turn the Brightness and Contrast OSD all the way up 6 Enter the Service Menu again 7 Make the whites as white as possible using the Red DRV Cool and Green DRV Cool Drive adjustment within I2 C Service Menu 10800K X 0 278 Y 0 280 8 Set the Brig...

Page 139: ...ART START CUT OFF ADJUSTMENT BLUE DEFOCUS ADJUSTMENT SUB BRIGHT ADJUSTMENT CHECK Lo LIGHT W B Hi LIGHT W B FINISH ADJUST Hi LIGHT W B ADJUST Lo LIGHT W B SUB BRIGHT ADJUSTMENT If NOT OK Repeat two or three times until no adjustment is necessary If OK ...

Page 140: ...just ment pages until TA1270 M appears at the top of the page 3 Go to SUB CONT TV S 4 Press PIP and PIP Mode on remote control TA1270 M changes to TA1270 S 5 Observe P852 on the CRT PWB and change the TA1270 S SUB CNT I2 C data so that the ampli tude of the Sub Picture is the same level as that of the main picture Shown below 6 Exit Service Menu Main Picture White Sub Picture White Should Match Ma...

Page 141: ...9 Standard Mode Adjustment 5 Receive any 1080i 2 14H signal 6 Change Screen Format 16X9 Standard mode 7 Power the Set Off 8 Enter the I2 C Bus align ment menu and select Item 9 H POSITION 9 Adjust the data so that the left and right sides are the same size 10 Exit from the I2 C Menu 11 Turn the Power Off NOTE To enter the I2 C Bus alignment menu with Power Off press the INPUT button and hold it do...

Page 142: ...Points RED GREEN BLUE FOCUS CONTROLS Also SCREEN CONTROLS for RED GREEN BLUE 1 Centering magnet RED 2 Centering magnet GREEN 3 Centering magnet BLUE 4 Beam Form Magnets RED CRT GREEN CRT BLUE CRT 2 1 3 4 5 6 4 4 5 5 FRONT 5 Beam Alignment magnets 6 Focus Block Assembly ...

Page 143: ...DP 2X CHASSIS DIAGRAMS MISCELLANEOUS INFORMATION SECTION 8 ...

Page 144: ...THIS PAGE LEFT BLANK ...

Page 145: ... 1 R VIDEO R MONO L AUDIO INPUT 2 INPUT 3 MONO L S VIDEO R VIDEO INPUT 4 MONO L S VIDEO R VIDEO L S VIDEO AUDIO MONITOR OUT R L AUDIO TO HI FI CENTER IN DP 23 23G REAR PANEL Pr Pb Y VIDEO PAGE 08 01 51UWX20B 57UWX20B DP 23 CHASSIS 51GWX20B 57GWX20B DP 23G CHASSIS ...

Page 146: ... MONO L AUDIO INPUT 1 R VIDEO R MONO L AUDIO INPUT 2 INPUT 3 MONO L S VIDEO R VIDEO INPUT 4 MONO L S VIDEO R VIDEO L S VIDEO AUDIO MONITOR OUT R L AUDIO TO HI FI CENTER IN DP 24 REAR PANEL Pr Pb Y VIDEO PAGE 08 02 43FWX20B DP 24 CHASSIS ...

Page 147: ... 2 INPUT 3 MONO L S VIDEO R VIDEO INPUT 4 MONO L S VIDEO R VIDEO L S VIDEO AUDIO MONITOR OUT Pr Pb Y VIDEO ANT A To Converter ANT B R L AUDIO TO HI FI CENTER IN IR Blaster ANT C ATSC IN Multi Media Card IEEE 1394 OPTICAL OUT Digital Audio 1 2 9 7 10 11 12 1 6 3 5 4 8 65XWX20B 57XWX20B and 51XWX20B ...

Page 148: ... R MONO L AUDIO INPUT 2 INPUT 3 MONO L S VIDEO R VIDEO INPUT 4 MONO L S VIDEO R VIDEO L S VIDEO AUDIO MONITOR OUT R L AUDIO TO HI FI CENTER IN IR BLASTER DP 27 27D REAR PANEL Pr Pb Y VIDEO PAGE 08 04 51SWX20B 57SWX20B 65SWX20B DP 27 CHASSIS 57TWX20B 65TWX20B DP 27D CHASSIS ...

Page 149: ...ST PFH1 PFH2 I001 I401 IA03 TERMINAL PWB U301 U302 MAIN TUNER PinP TUNER DIGITAL MODULE DP 26 Only FLEX CONTROL PIP U303 DVI PWB DP 23 G DP 26 DP 27 D EH7P PH2P PH10P EH2P REAR VIEW DP 2X SIGNAL PWB PAGE 08 05 ...

Page 150: ...607 H Size Adj V Size Adj CONVERGENCE SERVICE SWITCH DP 2X DEFLECTION PWB IK01 PADJ QK01 D708 1 6 1 1 6 PPD1 PPD2 PPD3 PPD6 1 10 1 7 12 7 1 PDS1 PCR RED PCG GREEN PCB BLUE M62501P IH01 T702 T701 1 11 CH16 RH17 HV ADJ DO NOT ADJ 1 UKDG DIGITAL CONVERGENCE UNIT PAGE 08 06 ...

Page 151: ...905 220V E901 28V E903 7V E909 10V PRO I905 I904 FB I903 ACK E911 E912 DM 10V 29V 12WX2 39V 20WX2 T901 Switching Transformer T902 Switching Transformer PPS7 PPS5 PPS4 PPS3 PPS2 PPS1 F901 FUSE F903 FUSE PPS6 F902 FUSE I901 D901 1 2 S901 DEF SW D902 D915 DEF POWER I902 I906 FB PPD3 PPD2 PPD1 GREEN or RED LED PPD6 BACK COVER SIDE PDC1 PAGE 08 07 ...

Page 152: ...DP 2X CRT PWBs E801 RED P802 Cathode P801 1 3 GND E851 GREEN P852 Cathode P851 1 3 GND E8A1 BLUE P8A2 Cathode P8A1 1 3 GND R R G G B B FOCUS PACK FOCUS PACK UFPK SCREEN ADJ VR FOCUS ADJ VR PAGE 08 08 ...

Page 153: ...DP X ALL BUT DP 24 FRONT CONTROL PWB PFT PF1 PFS DIMMER CONTROL LIGHT RECEIVER POWER LED POWER MAGIC FOCUS VOL VOL CH CH INPUT EXIT MENU SELECT R L V S EF1 PFR EFR REMOTE CONTROL IR RECEIVER PAGE 08 09 ...

Page 154: ...DIMMER CONTROL LIGHT RECEIVER POWER LED POWER MAGIC FOCUS VOL VOL CH CH INPUT EXIT MENU SELECT R L V S REMOTE CONTROL RECEIVER DP 24 FRONT CONTROL PWB PAGE 08 10 ...

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