Hitachi 42PMA300EZ Service Manual Download Page 30 | Manualshive

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29

42PMA300EZ (PW1A)

NO POWER

FUSE

STB

See

NO PICTURE & SOUND

Q101,R005

check voltage

D010(K)-J28

D151,IC101,

Q104,Q108,

etc

impedance
check D001

impedance check

Q003/Q004

impedance

check Q201

impedance

check Q301

D001

Q003,Q004,

etc

Q201,IC201

D210,Q200,etc

Q301,Q300

D310,etc

NO Vs,Va,Vcc,STB

[ POWER BOARD ]

over 130V

OK

OK

OK

OK

OK

NG

NG

NG

NG

NG

NO PICTURE

& SOUND

STB

Vcc

See NO

PICTURE

IC201,Q200,PC201,

PC202,etc

See NO POWER

IC001,D005,D006,D007,

D008,PC003,etc

NG

NG

OK

OK

NO Vs,Va,Vcc

open connector

CN806,CN807

impedance

check Vs LINE

impedance

check Vs LINE

PDP module

Vs NG

impedance

check Va LINE

open connector

CN807

impedance

check Va LINE

PDP module

Va NG

D351

D551

Va:no uprise

Vs:down after up

Vs:no uprise

Va:down after up

SW ON

Q300,I301,D310

PC301,PC302,

etc

Q501,Q500,D510,

Q502,PC501,

PC502,etc

NG

NG

NG

OK

OK

OK

NO PICTURE

NO Vs,Va

check voltage

J61-J28

over 300V

under 300V

NG

OK

NG

under 130V

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Summary of Contents for 42PMA300EZ

Page 1: ...ecome sufficiently cool 3 Special care shall be taken to the display area in order not to damage its surface 4 The Panel Module shall not to be touched with bare hand to protect its surface from stains 5 It is recommended using clean soft gloves during the replace ment work in order to protect not only the display area of the Panel Module but also the serviceman himself 6 The Chip Tube of Panel Mo...

Page 2: ... images free from color misconvergence and display distortion High Performance Digital Processor A wide range of personal computer signals can be handled from 640 x 400 640 x 480 VGA to 1600 x 1200 UXGA RGB Analog input Easy to use remote control and on screen display system The remote control included eases the work of setting display controls Further the on screen display system displays the sta...

Page 3: ...eo input terminal RCA AV1 Y PB PR video input terminal RCA AV1 L R audio input terminal RCA AV2 composite video input terminal RCA AV2 Y G PB B PR R video input terminal RCA AV2 L R audio input terminal RCA AV3 composite video input terminal RCA AV3 S video input terminal RCA AV3 L R audio input terminal RCA AV4 composite video S video RGB L R audio input terminal Scart Video signals AV1 PAL SECAM...

Page 4: ...re located on the bottom The back cover is provided with indications to distinguish the adjustment buttons SUB POWER button Control panel VOLUME UP DOWN buttons ADJUST buttons Main power switch The main power switch is located at the back on the lower surface Indicating lamp MENU button indicates the function while the MENU is displayed on the screen Remote control Main unit ...

Page 5: ... solder from soldered joints when replacing components If leaded solder should be added to existing lead free joints mix in the leaded solder thoroughly after the lead free solder has been completely melted do not apply the soldering iron without solder Servicing soldering iron A soldering iron with a temperature setting capability temperature control function is recommended The melting point of l...

Page 6: ...cting adjustment code buttons are used for changing data values OK button is used for confirming the data After finishing the necessary adjustment press MENU button Adjustment mode is released and the set returns to normal condition Memory Initialize operation NOTE The execution of this function returns the adjustment codes to the preset values therefore adjust ment data will be lost Procedure 1 E...

Page 7: ...Level RGB_AMP TV VIDEO 254 127 25 Black Level RGB_AMP PC 254 127 26 Reference Amplitude RGB_AMP TV VIDEO 254 127 27 Reference Amplitude RGB_AMP PC 254 127 28 Display for Max Amplitude Level Main 29 Display for Max Amplitude Level SUB 30 SUB_CONTRAST㧔RF MAIN 15 7 31 SUB_CONTRAST AV1 MAIN SUB COMPOSITE mode 15 7 32 SUB_CONTRAST㧔RF SUB 15 7 33 SUB_CONTRAST AV4 MAIN SUB COMPOSITE mode 15 7 34 SUB_COLO...

Page 8: ...AIN AV2 㧙 3 0 90 AFC_GAIN AV3 㧙 3 0 91 AFC_GAIN AV4 㧙 3 0 92 S_INHBT 㧙 1 0 93 S_ID 㧙 1 0 94 S_GP 㧙 3 0 95 S_V_ID 㧙 1 0 96 BELL HPF 㧙 3 3 97 Cb offset1 MAIN 15 8 98 Cr offset1 MAIN 15 8 99 Cb offset1 SUB 15 8 100 Cr offset1 SUB 15 8 101 Sharpness Gain VIDEO PAL MAIN 15 10 102 Sharpness Gain RF MAIN 5 8 103 Sharpness EQ 4 5MHz MAIN 3 1 104 Sharpness EQ 5 5MHz MAIN 3 1 105 Sharpness EQ 6 0 6 5MHz MAI...

Page 9: ...1 YES 1 1 175 Remote Function available 0 NO 1 YES 1 1 176 Power Save On Off Setting at Initialize Reset and Shipping 0 Change 1 Don t Change 2 0 177 DVI STB RGB COMPONENT Function available 0 NO 1 YES 1 0 178 Dynamic Backlight function 0 No 1 Yes For LCD model 1 1 179 ISM Control for WVGA 1 1 180 Terminal Mode Function available 0 Not Available 1 Available RS232C 1 0 181 Black insert function 0 N...

Page 10: ... data at SPLIT mode 120 83 234 Offset value of gain for Black Stretch function Except OFF LOW HIGH mode 63 33 235 Demonstration White 0 3 None 4 0 5 10W 6 20W 7 30W Mode common 7 5 236 Demonstration 0 Normal 1 Peak Mode 1 1 237 Demonstration Middle 0 0W 1 10W 2 20W 3 30W Mode common 3 3 238 Demonstration 0 Normal 1 Peak Mode 1 0 239 Horizontal Enhance TEXT 3 3 240 YNR Input Level at Low level for ...

Page 11: ...Main Sub SW 0 Main 1 Sub 1 0 304 Offset Value of Upper Limit for TB1274 SUB CONT Single Picture mode 18 2 305 Offset Value of Upper Limit for FC RGB AMP Multi Picture mode 18 2 306 Reference Amplitude RGB_AMP Multi Picture mode 254 90 307 Component Frq fH Setup 0 28 31 33 45KHz 1 28 31 45KHz 1 0 308 Terget value of White peak Adj Single Picture mode 237 235 309 Sharpness Gain S VIDEO Main 15 7 310...

Page 12: ...10 4 366 Y_DL L Sub 10 1 367 Y_DL L Sub 10 1 368 Sharpness Gain L MAIN 15 10 369 Sharpness Gain L MAIN 15 10 370 Sharpness Gain L SUB 15 8 371 Sharpness Gain L SUB 15 8 372 Sharpness f0 L MAIN 3 2 373 Sharpness f0 L MAIN 3 2 374 BURN IN enable disenable 0 Disenable 1 Enable 1 1 375 BURN IN mode 2 2 376 CM_THRESHOLD D15 D8 㧙 254 0 377 CM_THRESHOLD D7 D0 㧙 254 36 378 Sharpness Gain RF M MAIN 15 11 3...

Page 13: ... 15 0 436 Horizontal Coring Level Enhancer Gain AS HECOR0_P1 NT1 RF 15 1 437 Horizontal Coring Level Enhancer Gain AS HECOR0_P2 PAL1 RF multi 15 1 438 Horizontal Coring Level Enhancer Gain HECOR0_P3 NT1 Video 15 1 439 Horizontal Coring Level Enhancer Gain HECOR0_P4 PAL1 Video 15 1 440 Horizontal Coring Level Enhancer Gain HECOR0_P5 NT2 NT3 NT4 PAL2 PAL3 PAL4 15 1 441 Horizontal Coring Level Enhanc...

Page 14: ...TSC PAL multi 1 0 506 YHECLP1_P0 HD 1 0 507 Horizontal Clip Offset Level for Y G AS YHECLPL0_P0 RF multi 15 2 508 AS YHECLPL1_P0 NT1 except RF PAL1 except RF 15 2 509 YHECLPL2_P0 HD 15 1 510 EU YHECLPL0_E_P0 RF multi 15 4 511 EU YHECLPL1_E_P0 NT1 except RF PAL1 except RF 15 4 512 Horizontal Non Linear Peaking for Y G YHNLP0_P0 NTSC PAL multi 63 0 513 YHNLP1_P0 HD 63 0 514 Coring Amplitude for Y G ...

Page 15: ...R Y R CHDSBC0 NTSC PAL Multi Picture 7 0 577 CHDSBC1 HD 7 0 578 Horizontal Enhancer Clip fo B Y B R Y R CHECLP0 NTSC PAL Multi Picture 1 0 579 CHECLP1 HD 1 0 580 Coring Amplitude for B Y B R Y R CC0R0 NTSC PAL Multi Picture 7 1 581 CC0R1 HD 7 1 582 B Y Clamp offset Except D Sub Component NT1 2 3 HD2 3 PAL1 2 3 HD9 10 255 128 583 R Y Clamp offset Except D Sub Component NT1 2 3 HD2 3 PAL1 2 3 HD9 10...

Page 16: ... Contrast Center CM Contrast Offset CM for only WVGA LCD model Expand DSUB RGB Reserved 254 128 645 Contrast Center CM Contrast Offset CM for only WVGA LCD model DSUB COMP 254 137 646 Brightness Center CM DVI PC 254 128 647 Brightness Center CM DVI STB 254 128 648 Brightness Center CM DSUB RGB 254 128 649 Brightness Center CM Expand DSUB RGB Reserved 254 128 650 Brightness Center Offset DSUB COMP ...

Page 17: ... 255 699 H detection VIDEO PWB 0 out of range 128 NO V 255 interrupt 15 28 31 33 45kHz 255 700 Q mode 0 Freeze 1 Move 1 2 Move 2 For 55V 50Hz Natural Night mode 2 1 701 Q mode 0 Freeze 1 Move 1 2 Move 2 For 55V 60Hz Natural Night mode 2 1 702 Dispersion Time of Sustain current 0 2 Times 1 4 times For PC Movie mode 1 1 703 SMPLING For CCD 255 0 704 POLLING For CCD 255 15 705 START For CCD 7 2 706 T...

Page 18: ...omponent TV NTSC HD PC PC signal Video Input System Judgment of H Frequency Video Input Setup Mode AV1 AV2 PAL 15 75kHz 576i Auto PAL2 SDTV DVD PAL2 HDTV PAL3 NTSC 15 75kHz 480i Auto NT2 SDTV DVD NT2 HDTV NT3 PAL 31 25kHz 576p Auto HD10 SDTV DVD HD10 HDTV HD9 NTSC 31 50kHz 480p Auto HD3 SDTV DVD HD3 HDTV HD2 NTSC 45 00kHz 720p Auto HD5 SDTV DVD HD6 HDTV HD5 PAL 28 125kHz 1080i Auto HD7 SDTV DVD HD...

Page 19: ...ent Turn Vs ADJ to adjust Vs voltage to be within 0 1V of the value specified in the label on the panel Turn Va ADJ to adjust Va voltage to be within 0 2V of the value specified in the label on the panel Reconfirm that Vs voltage remains within 0 1V of the specified value Readjust if it s outside of the margin Label example LOT N6 Vs 185 0V Va 65 0V Permissive level of voltage in sufficient time o...

Page 20: ...nal of 576p or 480p format into AV1 input terminal 1 Select AV1 and enter the service adjustment mode the adjustment signal 2 Select No 740 RGB Amp Gain ADJ and press OK button for more than 2 seconds to start the adjustment It will complete the adjustment after the OSD of AUTO MODE disappeared 3 Select No 741 RGB Amp Gain ADJ and press OK button for more than 2 seconds to start the adjustment It ...

Page 21: ...i and press OK button for more than 2 seconds to start the adjustment It will complete the adjustment after the OSD of AUTO MODE disappeared Note Never adjust without use of the specified signal If that were done by mistake the picture would become abnormal in black level contrast and color In this case it will be recovered by re adjustment in the specified way The signal level of black area shoul...

Page 22: ...ignal step down the two or one among adjustment No 0 1 2 and adjust the value as shown below At least one of the data should be 224 Specification Video color temperature Cool x 0 268 0 005 y 0 283 0 005 Color temp 12000 K 10MPCD Color temperature should be adjusted under the condition in which the screen is the brightest thus the initial value of adjustment is it s maximum value Only reducing the ...

Page 23: ...nal step down the two or one among adjustment No 3 4 5 and adjust the value as shown below At least one of the data should be 224 Specification Video color temperature Normal x 0 285 0 005 y 0 293 0 005 Color Temp 9300 K 0MPCD Color temperature should be adjusted under the condition in which the screen is the brightest thus the initial value of adjustment is it s maximum value Only reducing the br...

Page 24: ...4 After receiving Video signal step down the two or one among adjustment No 6 7 8 and adjust the value as shown below At least one of the data should be 224 Specification Video color temperature WARM x 0 314 0 005 y 0 327 0 005 Color Temp 6500 K 0MPCD Color temperature should be adjusted under the condition in which the screen is the brightest thus the initial value of adjustment is it s maximum v...

Page 25: ... After receiving Video signal step down the two or one among adjustment No 9 10 11 and adjust the value as shown below At least one of the data should be 224 Specification Video color temperature B W x 0 335 0 005 y 0 343 0 005 Color Temp 5400 K 0MPCD Color temperature should be adjusted under the condition in which the screen is the brightest thus the initial value of adjustment is it s maximum v...

Page 26: ...r temperature Cool x 0 268 0 005 y 0 283 0 005 Color temp 12000 K 10MPCD Environment㧦20 lux or less Color temperature should be adjusted under the condition in which the screen is the brightest thus the initial value of adjustment is it s maximum value Only reducing the brightness controls the adjustment thus weaken the brighter color to adjust Color temperature is at Cool mode while the following...

Page 27: ...h single color raster and the OSD of BURN IN ON To escape from this mode press the SUB POWER button INPUT SELECT button and button at the same time and hold for more than 5 seconds Burn in mode will be released How to recover the remote and front key function If remote and front key cannot operate after miss set special function by front keys these functions can recover by below method Select No 1...

Page 28: ... No Yes Power cannot be turned on LED does not light Is the input voltage applied to Power supply unit CN61 AC inlet Power switch AC Fuse F901 T6 3AH 250V Are the voltages applied to CN63 pins and CNPPS pins of Power supply unit CN63 5V CNPPS 30V 3 3V 5V 12V 10V Formatter PWB Power supply unit No Yes FILTER PWB L ch R ch GND Check Speaker terminal and Speaker cord Unlocked Check Locked No sound Ar...

Page 29: ...8 pin on the Power supply unit correct Panel Module Panel Module Power supply unit Is the LED red or green orange Picture is not displayed LED is lighting Is Voltage applied to CN63 pin of the Power supply unit Power supply unit Is the voltage of CN68 pin on the Power supply unit 5V Power supply unit Is it the power saving mode Formatter PWB Input signal Cable or Formatter PWB ...

Page 30: ...SOUND STB Vcc See NO PICTURE IC201 Q200 PC201 PC202 etc See NO POWER IC001 D005 D006 D007 D008 PC003 etc NG NG OK OK NO Vs Va Vcc open connector CN806 CN807 impedance check Vs LINE impedance check Vs LINE PDP module Vs NG impedance check Va LINE open connector CN807 impedance check Va LINE PDP module Va NG D351 D551 Va no uprise Vs down after up Vs no uprise Va down after up SW ON Q300 I301 D310 P...

Page 31: ...st error code Self Check H11 OK H15 OK H16 OK H31 OK H32 OK H33 OK F63 F63 Self check result area Failure history area Check result Check item OSD Signal circuit self diagnosis function This function is for the failure of the signal circuit for example the phenomenon as below Sometimes power turns off abnormally Sometimes picture disappears abnormally To enter to this Self Diagnosis mode follow th...

Page 32: ...31 42PMA300EZ PW1A 8 Block diagram Block diagram 1 ...

Page 33: ...SCL2 SDA2 Lch IN Rch IN IC401 NJW1136 MASTER VOL BALANCE BASS TREBLE CONT SURR ON OFF IC402 NJM2192AM TRUBASS MUTE RELAY IC404 TA2021B DIGITAL POWER AMP 12V I403 BU4052 TRUBASS CONT AUDIO PWB MUTE DRIVE RELAY DRIVE LED OFF RELAY MUTE SP OUT Lch SP OUT Rch 12V 12V LED OFF DTC PW1 CHASSIS CIRCUIT BLOCK DIAGRAM Note There is no DVI D terminal in 42PMA300EZ MAIN L R MAIN Y PB PR SUB HD VD MAIN HD VD S...

Page 34: ... 1 e g d i r B V 0 1 6 1 0 C V 1 5 c c V 1 0 0 D 1 0 3 Q 1 0 3 C I 1 0 3 T 1 0 2 C 1 0 5 Q 1 0 5 T t c e t e d C A o g r e w o P 2 0 2 C I f f o r e w o P 2 0 0 L R C F P 1 0 0 C I 4 3 0 0 Q 䌌 5 0 0 V 0 0 1 C A 䇭䇭 V 0 2 3 V 0 0 2 C A 䇭䇭 V 0 7 3 C A 䇭 n i V L B T S a V 0 6 a V s V 0 8 s V 1 0 1 C P O H C P O H C G E R Block diagram 3 POWER BOARD ...

Page 35: ...4 15 16 17 18 19 20 Vra Vrs NC GND NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NC NC NC GND NC GND GND VSAGO VCEGO PFCGO GND GND GND GND Vra Vrs NC GND NC NC POWER UNIT 1 2 RA GND LVDS 3 4 RA RB SCL 5 RB RC RC RCLK RCLK RD 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 GND SDA GND LVDS CPUGO PDPGO IRQ RD PDWN GND LVDS RE 24 25 26 27 28 29 30 RE GND GND GND GND GND GND GND GND EFM1 ...

Page 36: ...35 42PMA300EZ PW1A 10 Wiring diagram 29 27 5 9 15 10 32 34 41 31 30 26 13 33 21 28 14 73 ...

Page 37: ...36 42PMA300EZ PW1A 11 Basic circuit diagram POWER BOARD Basic circuit diagram 1 ...

Page 38: ...37 42PMA300EZ PW1A POWER BOARD Basic circuit diagram 2 ...

Page 39: ...38 42PMA300EZ PW1A POWER BOARD Basic circuit diagram 3 ...

Page 40: ...39 42PMA300EZ PW1A POWER BOARD Basic circuit diagram 4 POWER BOARD Basic circuit diagram 5 ...

Page 41: ...40 42PMA300EZ PW1A 12 Printed wiring board diagram POWER BOARD Printed wiring board diagram 1 ...

Page 42: ...41 42PMA300EZ PW1A POWER BOARD Printed wiring board diagram 2 ...

Page 43: ...42 42PMA300EZ PW1A POWER BOARD Printed wiring board diagram 3 ...

Page 44: ...43 42PMA300EZ PW1A 13 Disassembly diagram ...

Page 45: ... 14 H CON SET HP8C FORMATTER EFK 15 H CON SET HP8C FORMATTER EFA 16 H CON SET HP8C FORMATTER EFJ 17 H CON SET HP8C FORMATTER EFJ 18 H CON SET HP8C FORMATTER EFJ 19 H CON SET HP8C FORMATTER EFG 20 H CON SET HP8C FORMATTER EFG 21 H CON SET HP8C FORMATTER EFM 22 H CON SET HP8C JOINT EJP1 PO 23 H CON SET HP8C JOINT EJP2 PO 24 H CON SET HP8C JOINT EJA1 AU 25 H CON SET HP8C FILTER PPU1 P 26 H CON SET HP...

Page 46: ...B 4X2X115 53 GASKET HP8C4C 4X2X175 54 GASKET HP8C4E 4X2X26 55 EPE FOAM B L HP8C18 56 EPE FOAM B R HP8C19 57 EPE FOAM T L HP8C1A 58 EPE FOAM T R HP8C1B 59 BATT LR6 SN 2P X WHM 1 60 CARTON C HP8C J88 42PM300E 61 USER S MANUAL U HP8C J88 FOR EUROPE SILVER 62 IMAGE RETENTION NOTE F HP8C J88 E F G S NO SW EU 63 EPE BAG HP8C K001 42 PDP L 64 PLASTIC RIVET PR 04A BLACK N66 65 PANEL PC FILM B HP8C25 L 940...

Page 47: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...

Page 48: ...CE MANUAL CAUTION 1 BEFORE SERVICING THE PDP MODULE READ THE SAFETY PRECAUTIONS IN THIS MANUAL 2 WHEN REPLACEMENT PARTS ARE REQUIRED BE SURE TO USE REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER MODEL PDP42V6 English ...

Page 49: ... is loose do not use the product otherwise this can lead to fire or electric shock 9 If the power connector or the connector of the power cable becomes dirty or dusty wipe it with a dry cloth Otherwise this can lead to fire 10 PDP Module uses a high voltage Max 450V dc Keep the cautions concerning electric shock and do not touch the Device circuitry when handling the PDP Unit And because the capac...

Page 50: ...or temperature The absolute maximum ratings specify the limits of these stresses 20 The recommended operating conditions are conditions in which the normal operation of this product is guaranteed All the rated values of the electrical specifications are guaranteed within these conditions Always use the product within the range of the recommended operating conditions Otherwise the reliability of th...

Page 51: ...on 2 8 One or more stripe is generated on the screen 2 9 One or more horizontal line is generated on screen 2 10 Lightness of screen is wholly darken though there is input signal pattern 2 11 Different color is shown partially during full white screen or electric discharge is generated during full black screen 2 12 Full white pattern it happened that the lightness of middle is darken while full wh...

Page 52: ...PCB ASSY PWB PCB ASSY PWB PCB ASSY Description LVDS CTRL B D ASSY Y DRV UPPER B D ASSY Y DRV LOWER B D ASSY X RIGHT B D ASSY X LEFT B D ASSY Y SUS B D ASSY Z SUS B D ASSY English Formation and Specification of Module 5 External Cable Connection NO 1 2 3 4 Connector P1 Z SUS B D P5 Y SUS B D P6 Y SUS B D P31 CTRL B D Input Voltage Signal 5V Va Vs Vs 5V Video Signal ...

Page 53: ... Adjustment items 3 1 Adjusting the Board Group 1 Adjusting the voltage wave form of Vset up 2 Adjusting the voltage wave form of Vset down 3 Adjusting the voltage wave form of Vramp 3 2 Adjustment after assembling PDP Module adjustment 1 Setting up the initial voltage and adjusting the voltage wave form of Vsetup 2 Measuring the voltage Margin of Vs and deciding the voltage 3 Adjusting and checki...

Page 54: ...r to figure 1 Connection diagram of measuring instrument that adjusting the voltage wave form 2 Setting up the initial voltage Initially setting up voltage Vcc 5V Va 65V Vs 185V But Initially setting up voltage can be changed by the set up range according to the Module s characteristic 5 3 How to Adjust 1 Adjusting initial voltage wave form Check the voltage wave form like the mentioned way on the...

Page 55: ...djustment 2 item and name each voltage as Vsmin2 Vsmax2 and record them Convert the signal of signal generator to 100 Full Blue signal Repeat the adjustment 2 item and name each voltage as Vsmin3 Vsmax3 and record them Convert the signal of signal generator to 100 Full White signal Repeat the adjustment 2 item and name each voltage as Vsmin4 Vsmax4 and record them æ Convert the signal of signal ge...

Page 56: ...5V 3 The power of power supply must turned on by this sequence Reverse direction When turning off Module on 5V Va Vs Module off Vs Va 5V 4 Signal generator should be selected with 852 480 WVGA mode 185 1 0 voltage 65 0 1 voltage 5 1 5 voltage Y SUS Z SUS E X Tube X right X Left CONTROLLER Power Signal Generator VG 825 DC Power Supply for 5V DC Power Supply for Va DC Power Supply for Vs Fig 1 Conne...

Page 57: ...in 4 Check the connection of X B D Y B D and Z B D to CTRL B D 5 Measure the output wave of X Y Z B D with oscilloscope more than 200MHz and find the trouble of B D by comparing the output wave with below figure Measure Point fo Y B D TP Bead B103 Measure Point fo Z B D TP Bead B37 Measure Point fo X B D COF TP 6 Check the SCAN Y side IC 7 Check the DATA X side COF IC 8 Replace the CTRL B D Troubl...

Page 58: ...English 11 A Y B D Output wave 1Frame B Y B D Output wave 2 12 SF A Z B D Output wave 1Frame B Z B D Output wave 1SF X B D Output wave 1 FRAME X B D Output wave 1 SF X B D Output wave Enlargement ...

Page 59: ...ude not be shown part of Data COF quantity or a part 1 The problem between Data COF and X B D is more possible that the screen is not be shown as data COF 2 Confirm the connector of Data COF is well connected to X B D Correspond to the part that screen is not showing 3 Confirm whether the Data COF is failed and replace X B D Example of the screen display form Anything of the 7 Data COF can be show...

Page 60: ...tripe about the quantity of two Data COF IC that means the data which is conveyed from CTRL B D doesn t conveyed well 2 Confirm the XB D connection connector plugged in well Correspond to unusual screen 3 Replace relevant XB D or CTRL B D Relationship between screen and X B D Screen X B D Left of the Screen 4 7 Right X B D Right of the Screen 3 7 Left X B D Screen Display Form 13 Case 1 Case 2 Cas...

Page 61: ...6 The screen has a vertical line with regular gap A vertical stripe flash at especial color 1 This is a problem about control B D 2 Replace Control B D Screen Display Form 2 7 A data copy is happened into vertical direction 1 In this case it s due to incorrect marking of scan wave 2 Replace a Y DRV B D or Y SUS B D Screen Display Form 14 one eighth of screen The screen display is very good The scr...

Page 62: ... operation isn t complete 2 Check the power cord of Z B D 3 Check the connector of Z B D and Controller B D 4 Replace the Controller B D or Z B D 2 11 The screen displays other color partially on full white screen or happens discharge partially on full black screen 1 Check the declination of Y B D set up set down wave 2 Check the declination of Z B D ramp wave 3 Measure each output wave with oscil...

Page 63: ...rn 1 In this case it s a problem about Z B D ramp wave 2 Check the connection cable of Z B D and CTRL B D 3 Replace the Z B D Screen Display Form 2 13 It doesn t display a specified brightness at specified color 1 Check the connector of CTRL B D input signal 2 Replace the CTRL B D ...

Page 64: ...e position Sustain section enlarge the after measuring B103 wave of Y B D and B37 wave of Z B D Full White Pattern 3 2 FET Ass y Y B D HS1 damage 1 When Set_Up FET is damaged screen doesn t be shown O Test Point Enlarge the after measuring GND B103 Y B D O Wave format As shown Fig 2 2 When Set_Down FET is damaged electric discharge of entire screen is generated O Test Point Enlarge the after measu...

Page 65: ...p or Bottom s SCAN IC 3 Screen shaked horizontally when Y drv B D Top and Bottom cable is poor O Test Point ICT measurance of GND Y drive B D output O Wave format As shown Fig 5 4 In case of shorting the SCAN IC output by a dust foreign substance it may overlap two horizontal lines on screen O Test Point ICT measurance of GND Y drive B D output O Wave format As shown Fig 6 O Measurance position SC...

Page 66: ... shown or happens discharge partially O Test Point Enlarge the after measuring output TP of GND COF O Wave format Output wave doesn t come out O Measurance position Enlarge the after measuring output TP of COF Full White Pattern 3 5 Crystal CTRL B D X1 damage 1 When Crystal is damage the screen doesn t be shown O Test Point Measuring 3pin of GND Crystal Ctrl B D X1 O Wave format Output wave doesn ...

Page 67: ...ROLLER Input Signal Full White Current typ rms 5V 1 483 A Vs 0 821A 1 68 Ap p 5 86 Ap p 0 53 Ap p 0 59 Ap p 6 6 Ap p Vs 0 72 A Va 0 035A 5V 0 063A 185 1 0 voltage 65 0 1 voltage 5 1 5 voltage DC Power Supply for 5V DC Power Supply for Va DC Power Supply for Vs ...

Page 68: ...1QZH033A 6871QRH037A 6871QLH034A 6871QCH034A 6871QYH029A 6871QZH033A 6871QRH037A 6871QLH034A Note Initial Product Initial Product Initial Product Initial Product Initial Product Initial Product Initial Product COF Resistor added R90 R91 C33 P5 P6 changed C7 added 4 layers changed 4 layers changed Board CTRL B D ASSY LVDS YDRV Upper B D ASSY YDRV Lower B D ASSY Y SUS B D ASSY Z SUS B D ASSY X RIGHT...

Page 69: ...itial Product Apply to DRIVER IC IR2113S Initial Product Apply to DRIVER IC IR2113S Initial Product Set_up Set dn FET Ass y Initial Product Check the inner resistance in 0 Ohm Initial Product Initial Product Matsushida AN16001A Check the inner resistance in 10 Ohm TI SN755866 Apply to DRIVER IC IXYS Apply to DRIVER IC IXYS COMPONENT Y IPM Y B D IC 12 Z IPM Z B D IC 4 FET Y B D HS1 COF Crystal CTRL...

Page 70: ...English 23 3 ROM DATA No 1 2 Date 2004 02 18 2004 02 18 Contents Initial ROM Data for DND Initial ROM Data for HTC ROM Data Version 42V62MS01 42V62JN01 ...

Page 71: ...47 Milano Italia ITALY Tel 39 02 487861 Tel 39 02 38073415 Servizio Clienti Fax 39 02 48786381 2 Email customerservice italy hitachi eu com HITACHI Europe AB Box 77 S 164 94 Kista SWEDEN Tel 46 0 8 562 711 00 Fax 46 0 8 562 711 13 Email csgswe hitachi eu com HITACHI EUROPE S A S Lyon Office B P 45 69671 BRON CEDEX FRANCE Tel 33 04 72 14 29 70 Fax 33 04 72 14 29 99 Email france consommateur hitachi...

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