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Mitsubishi E55LCD Service Manual Download Page 70

1/10W

1/10W

1/10W

1/10W

1/10W

LED_G

LED_R

51_RXD

SDA

SDA

LED_G_CTL

SCALER_INTN

LED_R_CTL

SCL

CPU_RST

SELECT

SCL

CPU_RST

51_TXD

LED_R

LED_G

SCL

LED_R_CTL

LED_G_CTL

DOWN

UP

SCALER_RSTN0

SDA

MENU

DOWN

UP

SELECT

MENU

PANELVCC_CTL

2

ADCPWR_CTL

EE_PROTECT 5

51_TXD

SDA

4

B

A

C

K

LI

G

_O

N

_O

F

F

3

51_RXD

SCALER_INTN

4

SCALER_RSTN 4

PWR_SW

DDC_SCL

5

DDC_S0

SCL

4

DDC_S1

DDC_SDA

5

PWR_SW

SDA

SCL

PC_DET

5VD

5VD

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_PWR

MCU_3_3V

L102

BLM11A121SPT

1

2

R126

4K7

1

2

X101

12MHz/XTA

L

C113

102P

1

2

R119

4K7

1

2

R114

0

L104 BLM11A121SPT

1

2

R128

4K7

1

2

R112

0

1

2

R113

0

R133

NC (10K)

1

2

C119

104P

1

2

R123 4K7

1

2

R144

NC

1

2

R134

4K7

1

2

R124

4k7

1

2

3

4

5

6

7

8

C108 22P

R145

NC

1

2

R108

100

R146

NC

1

2

C117

104P

1

2

R147

NC

1

2

C102

104P

C107 22P

M

5

1

9

5

8

IC103

M51958B

1

2

3

4

5

6

7

8

NC

I/P

NC

GND

DELAY

O/P

VCC

NC

C123

NC

Q101

2SA1037

1

3

2

R136

4K7

1

2

R139

NC

1

2

IC102

87C51MC2/NT68F631

35

21

10

43

42

41

40

39

38

37

36

44

22

2

3

4

5

6

7

8

9

24

25

26

27

28

29

30

31

11

13

14

15

16

17

18

19

20

32

33

EA/VPP

XTAL1

RST

P0.0/AD0

P0.1/AD1

P0.2/AD2

P0.3/AD3

P0.4/AD4

P0.5/AD5

P0.6/AD6

P0.7/AD7

V

C

C

V

S

S

P1.0/T2

P1.1/T2EX

P1.2/EC1

P1.3/CEX0

P1.4/CEX1

P1.5/CEX2

P1.6/CEX3

P1.7/CEX4

P2.0/A8

P2.1/SCL0

P2.2/SDA0

P2.3/SCL1

P2.4/SDA1

P2.5/A13

P2.6/A14

P2.7/A15

P3.0/RXD

P3.1/TXD

P3.2/INT0

P3.3/INT1

P3.4/T0

P3.5/T1

P3.6/WR

P3.7/RD

XTAL2

PSEN

ALE

C111

104P

1

2

R

10

4

4K

7

1

2

R107 4K7

1

2

R121

150

C116

102P

1

2

C122

104P

1

2

L108 BLM11A121SPT

1

2

R140

470

1

2

R129

220 1/4W

1

2

R101 4k7

1

2

3

4

5

6

7

8

R110

100

R127

4K7

1

2

R102

4k7

1

2

3

4

5

6

7

8

R120

4K7

1

2

C105

103P

1

2

C104

10U/16V

C114

104P

1

2

C125

10U/16V

L103

BLM11A121SPT

1

2

R130

NC (27K)

1

2

C109

103P

1

2

L109 BLM11A121SPT

1

2

Q103

DTC114WK

3

1

2

L106

BLM11A121SPT

1

2

C115

103P

1

2

R131

10K

1

2

C103

104P

C106

103P

1

2

R135

220 1/4W

1

2

L107 BLM11A121SPT

1

2

L105 BLM11A121SPT

1

2

J102

MA/10PX1/RA

ARC

513-0100-110

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

C121

102P

1

2

R109 0

1

2

R142

NC 
(10K)

1

2

R132 4K7

1

2

C118

102P

1

2

L110

BLM11A121SPT

1

2

IC101

24C16/SO8

1

2

3

4

5

6

7

8

PRE

E1

E2

VSS

SDA

SCL

/WC

VCC

Q102

2SA1037

1

3

2

C101

104P

1

2

L101

NC

1

2

C112

NC (104P)

1

2

R137

NC

1

2

J101

CON4*1/2.54

1

2

3

4

C110

102P

1

2

R111

0

1

2

R

10

3

4K

7

1

2

Summary of Contents for E55LCD

Page 1: ...COLOR MONITOR E55LCD MODEL No NL1503 B 200208 08R220B3 SERVICE MANUAL PART NO 599910610 NEC MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION AUGUST 2002 ...

Page 2: ...the personnel that un insulated voltage within the unit may have sufficient magnitude to cause electric shock This symbol alerts the personnel that important literature concerning the operation and maintenance of this unit has been included Therefore it should be read carefully in order to avoid any problems PRODUCT SAFETY CAUTION 1 When parts replacement is required for servicing always use the m...

Page 3: ...USER S MANUAL 1 1 SERIAL NUMBER INFORMATION 2 1 DISASSEMBLY 3 1 ADJUSTMENT PROCEDURES 4 1 INSPECTION 5 1 TROUBLE SHOOTING 6 1 CIRCUIT DESCRIPTION 7 1 REPLACEMENT PARTS LIST 8 1 BLOCK DIAGRAM 9 1 SCHEMATIC DIAGRAMS 10 1 ...

Page 4: ...1 1 User s Manual www nec mitsubishi com ...

Page 5: ...ded video signal cable Use of other cables and adapters may cause interference with radio and television reception 2 This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses an...

Page 6: ...vironmental demands for example in respect of the reduction of electric and magnetic fields physical and visual ergonomics and good usability Environmental Requirements Flame retardants Flame retardants are present in printed circuit boards cables wires casings and housings In turn they delay the spread of fire Up to thirty percent of the plastic in a computer casing can consist of flame retardant...

Page 7: ...es Français 5 Conseils d utilisation Français 7 Spécifications Français 8 Fonctionnalités Français 9 Résolution des problèmes Français 10 Avvertenza Attenzione Italiano 1 Dichiarazione Italiano 1 Contenuto Italiano 2 Guida rapida Italiano 2 Comandi Italiano 5 Raccomandazioni per l uso Italiano 7 Specifiche tecniche Italiano 8 Caratteristiche Italiano 9 Soluzione dei problemi più comuni Italiano 10...

Page 8: ...1 5 English âesky Deutsch Ελληνικά Español Français Italiano Nederlands Polski Русский Türkçe ...

Page 9: ...ent EPA endorsement of any product or service All other trademarks mentioned in this manual are the property of their respective owners IBM PC XT AT PS 2 MCGA VGA 8514 A and XGA are registered trademarks of International Business Machines Corporation Apple and Macintosh are registered trademarks of Apple Computer Inc Microsoft and Windows are registered trademarks of the Microsoft Corporation NEC ...

Page 10: ...15 pin mini D SUB signal cable to the MultiSync Macintosh cable adapter Figure B 1 NOTE Some Macintosh systems do not require a Macintosh cable adapter Figure A 1 Figure B 1 Mac Adapter not included Macintosh G3 and G4 do not require an adapter 3 Remove connector cover Connect the D SUB signal cable to the connector on the back of the monitor Place the video signal cable Figure C 1 Replace connect...

Page 11: ...nitor use the following OSD controls Auto Adjust Contrast Analog input only Auto Adjust Analog input only Refer to the Controls section of this User s Manual for a full description of these OSD controls NOTE If you have any problems please refer to the Troubleshooting section of this User s Manual Tilt Grasp both sides of the monitor screen with your hands and adjust the tilt as desired Figure F 1...

Page 12: ...nd to its original position remove the 4 screws that connect the monitor to the stand and lift off the stand assembly Figure G 5 4 Disconnect all cables 5 Reverse this process to reattach stand NOTE Use only VESA compatible alternative mounting method 36mm Figure G 1 Figure G 2 Figure G 3 Figure G 4 PUSH PUSH PUSH PUSH AC power cord 1 Cable pass through in this hole 2 Connect each connector Signal...

Page 13: ...o center the image on the screen If the H Size is wrongly calibrated the result would look like on the left drawing The image should be homogeneous Phase Improve focus clarity and image stability by increasing or decreasing this setting Should the Auto Adjust function and the H Size function do not give you satisfactory picture setting a fine tuning can be performed using the Fine function It impr...

Page 14: ... to get distinct image or soft one as you prefer and set independently by different timings OSD TRANSPARENCY This function allows you to set OSD transparency gradually LANGUAGE OSD control menus are available in seven languages INFORMATION MONITOR INFO Indicates the model and serial numbers of your monitor ALL RESET Selecting ALL RESET allows you to reset all OSD control settings back to the facto...

Page 15: ...reas Do not cover vent on monitor If monitor is broken do not come in contact with the liquid crystal If glass is broken Handle with care Allow adequate ventilation around the monitor so that heat can properly dissipate Do not block ventilated openings or place the monitor near a radiator or other heat sources Do not put anything on top of monitor The power cable connector is the primary means of ...

Page 16: ...sync Positive Negative Vertical sync Positive Negative Display Colours Analog input 16 194 277 DITHERING Depends on display card used Synchronization Range Horizontal 24 8 kHz to 60 kHz Automatically Vertical 50 Hz to 75 1 Hz Automatically Viewing Angle Left Right 60 Up Down 45 Image Formation Time 30ms Typ trR 10ms trD 20ms Resolutions Supported Landscape 640 x 400 at 56 Hz 70 Hz 640 x 480 at 60 ...

Page 17: ...tor to send its capabilities such as screen size and resolutions supported directly to your computer automatically optimizing display performance IPM Intelligent Power Manager System Provides innovative power saving methods that allow the monitor to shift to a lower power consumption level when on but not in use saving two thirds of your monitor energy costs reducing emissions and lowering the air...

Page 18: ... Signal cable should be completely attached to the computer Use the OSD Image Adjust controls to focus and adjust display by increasing or decreasing the fine total When the display mode is changed the OSD Image Adjust settings may need to be readjusted Check the monitor and your display card with respect to compatibility and recommended signal timings If your text is garbled change the video mode...

Page 19: ...1 16 Printed in China 15501341 Printed on recycled paper ...

Page 20: ...ctured Year Last digit Manufactured Month January to September 1 to 9 October X November Y December Z Factory Code NPG China factory Y Control Code B B ver for Europe Asia and Pacific EX SERIAL NUMBER LABEL Model Name E55LCD SERIAL NO Serial Number 5 digit sequential number at production month 00001 99999 ...

Page 21: ...ize is used screws may be damaged g Assembly is the opposite process of disassembly g Note If consignment the parts begins the part number of NPG is used SYMBOL Part No for NPG Part No for NMV DESCRIPTION 1 11000842 79PQ5007 COVER TILT REAR 2 11000831 79PQ5006 COVER HINGE 3 11000791 79PQ5003 COVER CABLE 4 14300171 P4 12 W MC NI 1 2 3 4 4 4 4 ...

Page 22: ...3 2 SYMBOL Part No for NPG Part No for NMV DESCRIPTION 5 10102971 79PQ5001 CABINET BACK 6 14000181 SCREW T3X10 SYMBOL Part No for NPG Part No for NMV DESCRIPTION 7 14300071 P3 6 W MC NI 5 6 7 J102 ...

Page 23: ... 6 W MC NI 8 14000171 VB 1 4 10 MC NI 9 10102981 79PQ5002 CABINET FRONT ASSY 10 AS0R21ML 79PQ5068 SW INSERT ASSY SYMBOL Part No for NPG Part No for NMV DESCRIPTION 7 14300071 P3 6 W MC NI 11 12300831 SHIELD COVER 12 14300201 4 40T 40T 4 8HL 4 0 5 NI W 1 1 7 8 9 10 7 12 ...

Page 24: ...IN INSERT ASSY SYMBOL Part No for NPG Part No for NMV DESCRIPTION 13 14300161 P3 8 8 SPW WAS MC NI 15 14300181 P3 8 8 SPW GEAR MC NI 16 14300091 F3 8 MC NI 17 14300151 P4 10 10 SPW WAS MC NI 18 AP0R22ML 79PQ5067 POWER INSERT ASSY 19 JM100011 INVERTER TAD770 TDK 14 13 J302 J301 J601 15 19 CN3 CN2 CN1 17 16 13 18 ...

Page 25: ...OL Part No for NPG Part No for NMV DESCRIPTION 20 14300211 P2 5 4 MC NI SYMBOL Part No for NPG Part No for NMV DESCRIPTION 21 JG552011 79PQ5063 TFT LM150X05 A3 LGPL 22 AK0R21TL 79PQ5069 CN SMT8S9 ASSY 20 21 22 ...

Page 26: ... WAS MC NI 23 11000811 79PQ5004 COVER TILT FRONT 24 14900012 79EN0287 HINGE UNIT 25 12000621 79EN0282 TILT FRAME STAND 26 11000821 79PQ5005 TILT BASE SYMBOL Part No for NPG Part No for NMV DESCRIPTION 6 14000181 SCREW T3X10 8 14000171 VB 1 4 10 MC NI 27 12300681 79EN0528 SHIELD BASE 23 26 8 6 9 27 24 25 17 ...

Page 27: ... adjustment method 4 2 3 1 Configuration of front control panel 4 2 3 2 OSD operation method 4 2 4 Set adjustments 4 3 4 1 Measuring instruments to be used 4 3 4 2 Power source voltage 4 3 4 3 Electrification 4 3 4 4 BIAS and GAIN adjustment 4 3 4 5 Panel BRIGHTNESS check 4 3 4 6 Panel color check 4 3 4 7 Color temperature check 4 4 ...

Page 28: ... 100 CONTRAST 80 SHARPNESS 0 Color Temperature 6500K OSD time off 30 seconds Language English OSD transparency 100 OSD setting Power saving Yes 3 Names of each LCD monitor part and adjustment method 3 1 Configuration of front control panel 3 2 OSD operation method Factory mode Hot key for reset EEPROM data Press and button at the same time then power on Hot key for Factory adjust Press MENU and SE...

Page 29: ... of signal discrimination the LED is lit in green 4 4 BIAS and GAIN adjustment 1 Input timing 1024X768 75Hz XGA75 with signal generator then set the pattern to 32gray scale and video signal level to 0 7V 2 OSD select to WHITE BALANCE then press or button 3 Automatic adjustment of BIAS and GAIN 4 5 Panel BRIGHTNESS check 1 Input timing 1024X768 75Hz XGA75 with signal generator then set pattern to f...

Page 30: ...7V 2 OSD brightness setting to MAX 100 and contrast setting to 80 3 OSD into factory mode and adjust R G B gain to meeting below color coordination 4 Each color temperature setting as below 9300K x 0 281 0 03 y 0 311 0 03 8200K x 0 290 0 03 y 0 300 0 03 7500K x 0 300 0 03 y 0 310 0 03 6500K x 0 313 0 03 y 0 329 0 03 5000K x 0 345 0 03 y 0 352 0 03 ...

Page 31: ...y test 5 2 2 1 Isolation voltage 5 2 2 2 Ground resistance 5 2 3 Factory mode 5 3 4 External inspection on the LCD module 5 5 5 Inspection of PLUG PLAY Communication and OSD MONITOR INFORMATION for Model Name Serial Number 5 8 5 1 System Connection 5 8 5 2 Input Signal 5 8 5 3 Programs Required 5 8 5 4 Inspection Procedures 5 8 5 5 Error Messages 5 11 5 6 EDID Data File 5 11 6 Preset Timing 5 12 ...

Page 32: ...he preset timing 2 Confirm that it does not take so long time to change the picture when frequency is changed Within five seconds 1 3 Confirming power management function 1 Input the specified timing with signal generator and set the pattern to full white Mode H V Power voltage Input timing Power consumption Normal On On AC240V XGA75 25W Standby Off On AC240V XGA75 3W Suspend On Off AC240V XGA75 3...

Page 33: ...ach value is changed Page 2 1 A Menu key is pressed and the GAIN menu is displayed 2 Press Select key to adjust the cursor to R G or B 3 Press or key can adjust each value is changed Page 3 1 A Menu key is pressed and the SERVICE INFORMATION menu is displayed 2 The page can check TOTAL TIME ON TIME and firmware version Page 4 1 A Menu key is pressed and the ON TIME RESET menu is displayed 2 Reset ...

Page 34: ...g EEPROM write Protect by Select key YES Disable NO Enable Page 7 1 A Menu key is pressed and the ALL RESET menu is displayed 2 Reset all EEPROM date and load default value to EEPROM by or key Page 8 1 A Menu key is pressed and the COLOR TEMPERATURE menu is displayed 2 Select R G B by Select key 3 Press or key can adjust each value is changed Left side Red Center green Right side Blue ...

Page 35: ...Max 6 Note 4 6 Distance between bright dots Distance between bright dots R R less than 6 5mm Max 2 for each color Note 5 7 Distance between 6 s Distance between 6 s less than 15mm Not Allowed Note 6 Two or more pixels or sub pixels with more than one fault of 5 Max 3 Note 7 Two or more pixels or sub pixels with more than one fault of 1 Two or more pixels or sub pixels with more than one fault of 2...

Page 36: ...nce between the group of 6 s Count as adjacent 3 dots Do not count as adjacent 3 dots R R G G B B R R G G B B R G G B B R Distance between the same color Combination with Bright Dot Dark Dot 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm Count as defect Do not count as defect R R R R G G G G B B B B 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm 6 5mm 15mm 15mm 15mm Count as defect Combination with the diff...

Page 37: ...n 5x5 pixels Note 8 Two or more pixels or sub pixels with more than one fault of 1 or 2 within 5x5 pixels 5x5 pixels 1 Cluster Dot Defect 5 The number of cluster within all screen Max 3 R G R G R G R G R G R G 5x5 pixels 5x5 pixels 5x5 pixels Count as defect Do not count as defect ...

Page 38: ...Signal Generator DESKTOP NOTE PC Monitor Program Disk Part No 599910508 Part No 599910593 EDID JIG NPG 5 2 Input Signal Horizontal sync frequency Not specified Vertical sync frequency Not specified 5 3 Programs Required NPGV233 EXE E55LCD BAT E55LCD TXT 5 4 Inspection Procedures a Factory Mode Press Menu and Select button at the same time then power ON b A Menu button is pressed and the EEP WRITE ...

Page 39: ...o acceptable f Execute the E55LCD BAT from the command line g Press the F2 key to start the inspection of DDC2B As a result of inspection when EDID data is not written in or it differs h or later is performed h Check the serial number of the set and enter an input of the following code from the keyboard 08R220B3 Serial Number Model Code 1 Space Serial No Example 08R220B3 2600001YB ...

Page 40: ...t the model name and serial number have been correctly written k Press the F2 key to start the inspection of DDC2B After the completion of inspection the contents of EDID are displayed If an error should occur the related error message will be displayed in the bottom area of the screen Refer to Paragraph 7 5 in regard to the meaning of this error message ...

Page 41: ...1E 17 78 EA 7E A5 A0 58 4E 96 25 20 1E 50 54 BF EE 00 01 01 01 01 01 01 01 01 01 01 30 01 01 01 01 01 01 C3 1E 00 20 41 00 20 30 10 60 40 13 00 30 E4 10 00 00 1E 00 00 00 FD 00 37 4B 1F 50 3C 08 00 0A 20 20 20 20 20 20 00 00 00 FC 00 45 60 35 35 4C 43 44 0A 20 20 20 20 20 20 00 00 00 FF 70 00 31 3 35 3 30 3 30 3 30 3 30 3 31 3 49 3 41 3 0A 3 20 3 20 3 20 3 00 8D 4 Table 7 6 Data list 1 address 10h...

Page 42: ...8 SVGA60 40 00 37 88 Dots 26 40 1056 3 20 128 1 00 40 2 20 88 20 00 800 60 32 Lines 16 58 628 0 11 4 0 03 1 0 61 23 15 84 600 P P 9 SVGA72 50 00 48 08 Dots 20 80 1040 2 40 120 1 12 56 1 28 64 16 00 800 72 19 Lines 13 85 666 0 12 6 0 77 37 0 48 23 12 48 600 P P 10 SVGA75 49 50 46 88 Dots 21 33 1056 1 62 80 0 32 16 3 23 160 16 16 800 75 00 Lines 13 33 625 0 06 3 0 02 1 0 45 21 12 80 600 P P 11 XGA60...

Page 43: ...ng the back light unit 6 6 4 Abnormal screen 6 7 5 Abnormal plug and play operation 6 8 5 1 Abnormal DDC2 6 8 6 Checking the interface circuit of sync signal 6 9 6 1 Checking the control circuit of horizontal sync pulse 6 9 6 2 Checking the control circuit of vertical sync pulse 6 10 7 Checking the resolution change IC movement 6 11 8 No power on 6 12 9 Checking the operation of CPU 6 13 ...

Page 44: ...time of the frequency that it over spec timing NO YES NG OK Does OSM display when you push Menu Select UP or DOWN button Proceed section 2 Nothing display on screen Check if the sync signal from Computer is output and if the video cable is connected normally Input the sync signal of computer or change the cable Proceed section 7 Checking the resolution change IC movement ...

Page 45: ...eo signal output on the host 2 Reconnect the video cable 3 Change the video cable Check OSM menu is displayed on screen when you push the Menu Select Up or Down key Check if the LCD video signal cable is connected between the MAIN board and LCD module Failure point The cable is disconnected Next page Proceed section 4 Abnormal screen Check the video cable for failure Check the host for output sign...

Page 46: ...nt Check the DE pulse is output on J301 pin4 Check the PVD signal is ouput on J301 pin5 J301 cable pulled out or disconnected 1 IC401 failure 2 Printed wire broke between IC401 and J301pin2 3 R436 C343or R306 failure Failure point 1 U3 failure 2 Printed wire broke between IC401 and J301 pin4 3 R439 or C344 failure Failure point 1 U3 failure 2 Printed wire broke between IC401 and J301 pin5 3 R438 C...

Page 47: ...ween U401 and J301 pin6 3 R437 or C346 failure Check the data signal output on J301 and J302 R G B data pin OK NG Failure point 1 IC401 failure 2 Printed wire broke between IC401 data line and J301 J302 Failure point 1 The cable broke between J301 J302 and Panel connect Board 2 Connect Board fail 3 LCD module failure ...

Page 48: ... CN1 pin6 Check Inverter F1 open Failure point F1 failure Replace the inverter board Failure point 1 Inverter cable disconnection OK 1 µ p failure 2 Printed wire broke between µ p trace to CN1 pin6 Is 12V source voltage provided to pins 1 and 2 of CN1 in inverter module OK NG Failure point Inverter cable disconnection Check Power Board ...

Page 49: ...20 Is the pulse of the TTL level being out put to J301 and J302 from the data line of IC401 Proceed section 7 Checking the resolution change IC movement NG OK Failure point Printed wire broke between IC401 data line and J301 J302 Check the PHD sync pulse output to J301 pin6 from IC401 pin53 at TTL level Failure point Printed wire broke between IC401 pin53 and J301 pin6 NG OK Check the PVD sync pul...

Page 50: ... on IC201 pin 6 synchronize SCLK at TTL level NG Failure point IC201 failure Failure point 1 The host machine isn t communicating in DDC2B mode 2 The video cable may have failed or may not to have connections for DDC 3 Between IC201 pin 6 and J201 pin 15 may have failed 4 Cable failure OK ...

Page 51: ...e horizontal sync signal on IC202 pin1 at TTL level NG OK Failure point 1 No separate sync or composite sync output by host Confirm the host output the sync signal 2 Video cable may have failed 3 Printed wire broke between J201 pin 13 and IC202 pin1 4 L208 or R213 open 5 IC202 failure Procees section 7 Checking the resolution change IC movement NG OK Failure point IC401 failure ...

Page 52: ... on IC202 pin5 at TTL level NG Failure point 1 No separate sync output signal from the host Check the host 2 Video cable may have failed 3 Printed wire broke between J201 pin 14 and IC202 pin5 4 L208 or R215 open 5 IC202 failure OK Proceed section 7 Checking the resolution change IC movement ...

Page 53: ...C401 PIN 3 6 14 17 21 24 26 32 38 46 71 91 103 123 145 147 152 Is there 3 0V supply on IC401 Pin8 NG OK Is 25MHz clock input to IC401 pin47 at TTL level NG OK OK Proceed section 11 Checking the DC DC converter circuit Is 25MHz clock output from X401 at TTL level Failure point X401 failure Proceed section 7 Checking the resolution change IC movement ...

Page 54: ...k the 12V power provided from Power Board NG OK Failure point Power Board failure Check the 5V and 3 3V power from IC601 NG OK Failure point Checking the DC DC converter circuit Proceed section 9 Checking the operation of CPU ...

Page 55: ...Checking the operation of CPU Is there 3 3V supply on IC102 pins44 NG OK Failure point L110 open Is 12MHz clock input to IC102 pin20 21 at TTL level NG OK Failure point X101 failure Failure point IC102 failure ...

Page 56: ... 2 Soft power circuit 7 2 1 3 DC to Dc circuit 7 2 1 4 Panel Vcc control 7 2 2 Microprocessor control circuit 7 2 2 1 Clock circuit 7 2 2 2 I2C buses 7 2 2 3 General purpose port 7 2 2 3 1 Key scan status 7 2 2 3 2 Scaler control 7 2 2 3 3 Led control 7 3 2 3 4 Data memory 7 3 3 Scaler 7 3 ...

Page 57: ... Panel power control used Q301 and IC301 from IC102 pin19 PANELVCC_CTL While the PANELVCC_CTL stay at High level the panel voltage is 5V While the PANELVCC_CTL stay at Low level the panel voltage is 0V 2 Microprocessor Control circuit 2 1 clock circuit The X101 is crystal it generates an 12M Hz output for microprocessor 2 2 I2C buses IC102 pin 40 SDA Serial data IC102 pin 39 SCL Serial clock This ...

Page 58: ...ta are held by the EEPROM IC101 These display control data are accessed through the I2C bus of the MCU 3 Scaler The scaler IC IC401 is controlled by MCU through the I2C bus IC401 embeded the ADC provide with the analog interface input X401 output 25M Hz fed to IC401 IC202 schmitt trigger for sync waveform processor And fed to IC401 for mode detect ...

Page 59: ...6R Q103 EN000211 79EN0576 TR CHIP NPN DTC114EUA Q201 EN000211 79EN0576 TR CHIP NPN DTC114EUA Q301 EN000211 79EN0576 TR CHIP NPN DTC114EUA Q601 EP000611 79PQ5025 TR 2SB1424 SOT89 Q602 EN000211 79EN0576 TR CHIP NPN DTC114EUA Q603 EQ500411 79PQ5076 FET SMD P SI230IDS TI Q604 EP000611 79PQ5025 TR 2SB1424 SOT89 Q605 EN000211 79EN0576 TR CHIP NPN DTC114EUA DIODES BD901 EJ000110 79EN0568 DIODE D2SB60A D2...

Page 60: ...7 FERRITE BLM18AG121SN1 L107 HM011011 79EN0677 FERRITE BLM18AG121SN1 L108 HM011011 79EN0677 FERRITE BLM18AG121SN1 L109 HM011011 79EN0677 FERRITE BLM18AG121SN1 L110 HM012311 79EN0683 FERRITE SMB160808 N1 121P L204 HM011011 79EN0677 FERRITE BLM18AG121SN1 L207 HM011011 79EN0677 FERRITE BLM18AG121SN1 L208 HM011532 79EN0680 FERRITE CHIP BK2125HS431 L209 HM011532 79EN0680 FERRITE CHIP BK2125HS431 L301 H...

Page 61: ...12300681 79EN0528 SHIELD BASE BASET 12000621 79EN0282 TILT FRAME STAND CABB 10102971 79PQ5001 CABINET BACK CABI B 11000831 79PQ5006 COVER HINGE CABIB 11000791 79PQ5003 COVER CABLE CABIBA 10102981 79PQ5002 CABINET FRONT ASSY TIBA 11000821 79PQ5005 TILE BASE TILT 14900012 79EN0287 HINGE UNIT TILTF 11000811 79PQ5004 COVER TILT FRONT TILTR 11000842 79PQ5007 COVER TILT REAR PRINTED PACKING MATERIALS CA...

Page 62: ...3W 220H J R131 FM100103 79PQ1893 CHIP 1 8W T 5 10K R132 FM100472 79PQ1899 CHIP 1 8W T 5 4 7K R134 FM100472 79PQ1899 CHIP 1 8W T 5 4 7K R135 FM510221 79PQ5046 R SMD METAL 1 3W 220H J R140 FM010471 79PQ5038 CHIP 1 10W T 5 470H R204 FM010472 79EN0185 R SMD 1 10W T 5 4 7K R205 FM010472 79EN0185 R SMD 1 10W T 5 4 7K R206 FM100101 79PQ1891 CHIP 1 8W T 5 100H R208 FM100101 79PQ1891 CHIP 1 8W T 5 100H R21...

Page 63: ...216M4 301T02 R427 HM014021 79PQ5078 BEAD SMD FCA3216M4 301T02 R428 HM014021 79PQ5078 BEAD SMD FCA3216M4 301T02 R429 HM014021 79PQ5078 BEAD SMD FCA3216M4 301T02 R430 FM100330 79PQ5043 R SMD METAL 1 8W 33H J R432 FM010103 79EN0178 R SMD 1 10W T 5 10K R433 FM100000 79PQ1890 CHIP 1 8W T 5 0 H R434 FM100000 79PQ1890 CHIP 1 8W T 5 0 H R436 FM010510 79PQ5040 CHIP 1 10W T 5 51H R437 FM010101 79EN0615 R CH...

Page 64: ...5 FA360275 79PQ5031 CARBON 1 2W M T 5 2 7M R906 FA360275 79PQ5031 CARBON 1 2W M T 5 2 7M R907 FB279091 79PQ5035 METAL 1 4W M T 1 9 09K R908 FA270689 79PQ5030 CARBON 1 4W M T 5 6 8H R921 FA360471 79PQ5032 CARBON 1 2W M T 5 470H R922 FA270102 79PQ1828 CARBON 1 4W M T 5 1K R924 FB271852 79PQ5033 METAL 1 4W M T 1 18 5K R925 FB274871 79PQ5034 METAL 1 4W M T 1 4 87K R926 FB273302 79PQ1870 METAL 1 4W M T...

Page 65: ...D 79EN0659 C CERA NPO T 10P 50V D C313 GM41005D 79EN0659 C CERA NPO T 10P 50V D C314 GM41005D 79EN0659 C CERA NPO T 10P 50V D C315 GM41005D 79EN0659 C CERA NPO T 10P 50V D C316 GM41005D 79EN0659 C CERA NPO T 10P 50V D C317 GM41005D 79EN0659 C CERA NPO T 10P 50V D C318 GM41005D 79EN0659 C CERA NPO T 10P 50V D C319 GM41005D 79EN0659 C CERA NPO T 10P 50V D C320 GM41005D 79EN0659 C CERA NPO T 10P 50V ...

Page 66: ... C CERAMIC B 1U 10V K C404 GN347629 79PQ5056 C SMD ELE85 16V 47U M C405 GM447152 79EN0514 C SMD NPO T 470P 50V J C406 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C407 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C408 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C409 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C410 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C411 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C412 GM4104...

Page 67: ...C CERA NPO T 10P 50V D C601 GM410232 79EN0501 C SMD NPO T 1000P 25V J C602 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C603 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C604 GAM47737 79EN0643 C ELE 105C T 470U 25V M C605 GM410423 79EN0504 C SMD X7R T 0 1U 16V K C606 GAM47737 79EN0643 C ELE 105C T 470U 25V M C607 GM410353 79EN0503 C SMD X7R T 0 01U 50V K C608 GM410353 79EN0503 C SMD X7R T 0 01U 50V K C609...

Page 68: ...M C910 GJC33285 79PQ5052 C SAFETY Y D 3300P 250V M C911 GB7103H3 79PQ1746 CERAMIC Y5P B T0 01U 1KV C912 GB210458 79PQ0228 CERAMIC Y5V T 0 1U 50V Z C921 GAM68737 79EN0644 C ELE 105C T 680U 25V M C922 GAM68737 79EN0644 C ELE 105C T 680U 25V M C923 GF233252 79PQ5050 MEF CAP BOX 0 0033U 50V J C924 GF210452 79PQ0752 MEF CAP BOX 0 1U 50V J C932 GAM22737 79EN0642 C ELE 105C T 220U 25V M C933 GAM22737 79E...

Page 69: ...9 1 BLOCK DIAGRAM ...

Page 70: ...27 28 29 30 31 11 13 14 15 16 17 18 19 20 32 33 EA VPP XTAL1 RST P0 0 AD0 P0 1 AD1 P0 2 AD2 P0 3 AD3 P0 4 AD4 P0 5 AD5 P0 6 AD6 P0 7 AD7 VCC VSS P1 0 T2 P1 1 T2EX P1 2 EC1 P1 3 CEX0 P1 4 CEX1 P1 5 CEX2 P1 6 CEX3 P1 7 CEX4 P2 0 A8 P2 1 SCL0 P2 2 SDA0 P2 3 SCL1 P2 4 SDA1 P2 5 A13 P2 6 A14 P2 7 A15 P3 0 RXD P3 1 TXD P3 2 INT0 P3 3 INT1 P3 4 T0 P3 5 T1 P3 6 WR P3 7 RD XTAL2 PSEN ALE C111 104P 1 2 R104...

Page 71: ...12 10P MTG3 MTG ID1 2 OD2 1 C303 10P L304 NC 1 2 MTG4 MTG ID1 2 OD2 1 C346 10P C348 10P C350 10P C352 10P C317 10P C354 10P C336 10P R304 10K 1 2 C338 10P C340 10P C342 10P C359 33P L301 SMB160808 N1 121P 1 2 C319 10P J302 36PX1 0 5MM ST IL FHR 36S HF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2...

Page 72: ... C615 NC 1 2 C616 NC 1 2 F601 1 8A 50V 1 2 L607 NC 1 2 R604 100 1 2 C605 104P 1 2 C602 104P 1 2 Q604 2SB1424 1 3 2 C607 103P 1 2 R605 0 1 2 IC602A 74F74 SO14 2 3 5 6 14 4 7 1 D CLK Q Q VCC PR GND CL R621 1K 1 2 D601 SSM24 1 2 C622 470U 25V 1 2 Q602 DTC114WK 3 1 2 R625 1K C630 NC 1 2 C611 1U 1 2 R624 470 R622 4K7 1 2 R612 1 65K 1 2 R616 39K 1 2 R632 NC 1 2 R617 33K 1 2 D602 SSM24 1 2 C618 10u 16V R...

Page 73: ..._R TVCC RX2P RX2N TGND RX1P AVCC_ADC_R REF_R RX1N TVCC RX0P RX0N TGND RXCN RXCP TVCC TPLLGND TPLLVCC SDA SCL HSDA HSCL CGND CVCC CLK IOGND IOVCC INTn RSTn PCLK CSG0 CSG1 CSG2 A0 IOGND IOVCC PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 IOGND IOVCC PB0 PB1 CGND CVCC PB2 PB3 PB4 PB5 PB6 PB7 IOGND IOVCC PC0 PF5 PF4 PF3 PF1 PF0 IOVCC IOGND PE7 PE6 PE5 PE4 PE3 PE2 PE1 PE0 CVCC CGND IOVCC IOGND PD7 PD6 PD5 PD4 PD3 PD...

Page 74: ...01 FCM2012 121T06 1 2 L202 FCM2012 121T06 1 2 C204 103P 1 2 C208 47P 1 2 R224 NC 1 2 IC202B 74F14 3 4 14 7 R220 NC 1 2 C207 47P 1 2 R214 100 1 2 R207 NC 1 2 IC202C 74F14 5 6 14 7 L203 FCM2012 121T06 1 2 R217 2K2 1 10W 1 2 D204 DAN217 T146 1 3 2 Q201 DTC144WK 3 1 2 R206 100 1 2 IC202A 74F14 1 2 14 7 R213 100 1 10W 1 2 R208 100 1 2 R218 2K2 1 10W 1 2 D208 RLZ5 6B 1 2 R211 47K 1 2 IC203 74HC4052D 10 ...

Page 75: ...K_1 C911 0 01U 1KV L933 33UH J901 1 2 3 D902 BYV26E C908 50V_0 1U BD901 D2SB60A 1 2 4 3 C907 50V_1U 12V 12V GND GND INV_ON OFF BRIGHT TOUCH PANEL J933 1 2 3 4 5 6 7 8 C922 25V_680UF M C906 1KV_0 01U C937 50V_0 1U B901 BEAD R924 1 4W_18 5K_1 C936 50V_0 1U TH901 SCK103 1 2 C909 16V_47U P901 AC INLET L G N C905 400V_100UF R908 1 4W_6 8 PD901 P6KE200A C932 25V_220U M C902 AC275V_ 0 33UF M C903 250V_22...

Page 76: ...0 R27 R28 Q11 Q12 C17 R31 C20 R32 VIN GND On Off Br Control 1 6 5 4 R4 R3 Q2 CN1 C11 C10 R11 R10 R8 CR5 CR10 5 4 3 2 1 10 12 T2 5 4 3 2 1 10 12 T1 R23 1 3 HV RTN CN2 C15 C19 1 3 HV RTN CN3 C12 C1 C3 R1 2 3 C21 C22 C23 CR4 C24 CR9 R16 R17 R25 R26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IC1 R2 C4 R18 R24 C25 C18 C26 C27 ...

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