Hitachi 42PD7500 Service Manual
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Hitachi 42PD7500 Service Manual

Hitachi 42PD7500 Service Manual

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CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise" und „Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
Plasma Television
June 2005
SM007
42PD7500
(PW2)
42PD7500A
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
(PW2)

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  • Page 1 SM007 42PD7500 (PW2) 42PD7500A (PW2) SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precautions” and “Product Safety Notices” in this service manual. Data contained within this Service manual is subject to alteration for ATTENTION: improvement.

  • Page 2: Caution For Safety

    42PD7500/42PD7500A (PW2) CAUTION FOR SAFETY Please read this page before repair the monitor. This page explains to following items for keep the safety of set and prevent to accident during repair work. We explain by symbol at happen the damage or injury when took wrong repair.
  • Page 3 42PD7500/42PD7500A (PW2) PRECAUTIONS How to clean the plasma screen panel of the monitor Before cleaning the monitor, turn off the monitor and disconnect the power plug from the power outlet. To prevent scratching or damaging the plasma screen face, do not knock or rub the surface with sharp or hard objects.
  • Page 4 42PD7500/42PD7500A (PW2) Digital Terrestrial Television Broadcasting Converting into digital signal enables to provide more channels and various useful features, such as Electric Pro- gramme Guide, Digital Teletext, and so on. Further, digital signal can create high quality picture. This logo indicates that the product is compliant with European Digital Broadcasting.

  • Page 5: Specifications

    42PD7500/42PD7500A (PW2) 2. Specifications Display Approx. 42 inches (922 (H) x 522 (V) mm, diagonal 1059mm) dimensions Panel Resolution 1024(H) x 1024 (V) pixels Net dimensions 1050 (W) x 676 (H) x 128 (D) mm (excluding Speakers/Stand) Net weight 38.0kg...

  • Page 6: Service Points

    42PD7500/42PD7500A (PW2) 3. Service points Lead free solder This product uses lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (600˚C).

  • Page 7: Component Names

    42PD7500/42PD7500A (PW2) 4. Component names [Main unit] Control panel • Adjustment buttons are located on the bottom. • The back cover is provided Remote-control with indications to distinguish receiver the adjustment buttons. Indicating lamp • The main power switch is located at the back, on the lower surface.

  • Page 8: New Adoption Technology

    42PD7500/42PD7500A (PW2) 5. New adoption technology [System control micom I001(M30627)] Pin function table PIN MANE FUNCTION VREF (+5.0V) +5.0V OSD_DATA OSD DATA OSD_CLK OSD CLK Head Phone Volume HP_VOL FE.AGC_O(M) AGC Voltage(F/E) FC DATA DATA_OUT(FC) FC DATA DATA_IN(FC) FC CLOCK...
  • Page 9 42PD7500/42PD7500A (PW2) PIN MANE FUNCTION CPUGO(PM_CPU) PDP PALEL Contorol EPM (FLASH) FRASH MEMORY Writing VIDEO.DET_1 Detecting VIDEO PWB SCL1 I2C to PWB TUNER side FE/MSP3455or MSP3415G/SAA5361/TB1274(Sub)/M306V7/M62320P SDA1 I2C to PWB TUNER side FE/MSP3455or MSP3415G/SAA5361/TB1274(Sub)/M306V7/M62320P HDMI-RESET HDMI-Reset HDMI-HPD_RESET Hot Plug Detect Reset VIDEO.DET_2...
  • Page 10 42PD7500/42PD7500A (PW2) PIN MANE FUNCTION CONTROL LCD PANEL SCL0 C-BUS Contorol CLOCK SDA0 C-BUS Contorol DATA SCL3(EEPROM) I2C-BUS Contorol CLOCK SDA3(EEPROM) I2C-BUS Contorol DATA HDMI_CIR_DET Detecting HDMI circuit connection EXT_RESET EXTERNAL RESET OSD_CS OSD CS FC_ENABLE FC ENABLE DTT IRQ...
  • Page 12 42PD7500/42PD7500A (PW2) 6. Adjustment ● How to get to Adjustment mode Using the front control buttons with the set turned off (standby) can activate it. Press the SUB-POWER( ) button, INPUT SELECT( ) button and button at the same time, and hold for more than 5 seconds.
  • Page 13 42PD7500/42PD7500A (PW2) Service adjustment items by I C-bus control (MAIN Part) Ο : shoule be adjusted ∆ should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 0 SUB_CONTRAST (RF) Main 1 SUB_CONTRAST (AV1)
  • Page 14 42PD7500/42PD7500A (PW2) Ο : shoule be adjusted ∆ should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL Sub Contrast 1 Sub Contrast 2 Sub Color 1 Sub Color 2 Main H.sync phase adj.
  • Page 15 42PD7500/42PD7500A (PW2) Ο : shoule be adjusted ∆ should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 200 Cb offset1 Main 201 Free 202 Cr offset1 Main 203 Free 204 Cb offset1...
  • Page 16 42PD7500/42PD7500A (PW2) : shoule be adjusted should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 300 2D-YNR Lim 301 BLK EXP 302 CKILL 303 Output Clamp 304 Input Clamp auto 305 Int Clamp Manual...
  • Page 17 42PD7500/42PD7500A (PW2) Ο : shoule be adjusted ∆ should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 400 ACSESET Except NTSC3.58 401 ACSFSET Except NTSC3.58 402 AYMESET Except NTSC3.58 403 AYMFSET Except NTSC3.58...
  • Page 18 42PD7500/42PD7500A (PW2) : shoule be adjusted should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 497 VCORA : VCO range select 498 CRNTA : change pump current select 499 TESTA : Matching Test to allow increment of stability counter.
  • Page 19 42PD7500/42PD7500A (PW2) : shoule be adjusted should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 592 Upper Limits Value for Sync Detect of 2ms interval For Free Running at AV mode...
  • Page 20 42PD7500/42PD7500A (PW2) Service adjustment items by I C-bus control (SUB adjust menu) (*The change to a sub menu. press “ok” key after no.659 with a main menu) : shoule be adjusted : should be followed previous data Function Max. Default...
  • Page 21 42PD7500/42PD7500A (PW2) Ο : shoule be adjusted ∆ : should be followed previous data Function Max. Default Changed Component Value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 92 Horizontal Coring Level [HECOR1] NTSC-RF 93 (Enhancer Gain ) [HECOR2] PAL-RF/ Multi picture...

  • Page 22: Factory Reset

    42PD7500/42PD7500A (PW2) Ο : shoule be adjusted ∆ : should be followed previous data Function Max. Default Changed Component Value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 184 Menu Init. Color Temp.(Cool[0]/Normal[1]/Warm[2]/B&W[3]) For Dynamic 185 Menu Init. Color Temp.(Cool[0]/Normal[1]/Warm[2]/B&W[3]) For Natural 186 Menu Init.
  • Page 23 42PD7500/42PD7500A (PW2) Item Power Unit Vs, Va Adjustment Applicable Model All models Preparation Procedure (1) Turn on the set and perform (1) Turn Vs ADJ to adjust Vs voltage pre-heat run more than 1 min to be within ±0.1V of the value on burn-in screen.
  • Page 24 42PD7500/42PD7500A (PW2) RGB Amplitude Adjustment (PC D-Sub input) Item Applicable Model All models Preparation Procedure Receive PC signal (VGA [60Hz]), and indicate Input RGB amplitude adjustment signal of VGA Service Adjustment Menu.(Main) (60Hz) into RGB2 [D-sub] terminal. Select No.652 of Service Adjustment Menu.
  • Page 25 42PD7500/42PD7500A (PW2) Video Color Temperature Adjustment (Cool) Item Applicable Model All models Adjustment Preparations Adjustment Procedures Perform the following adjustment with the remote Set the signal generator output as All White. control Component signal (480i) Set the CRT color analyzer (CA100) at the center Video level : 0.700Vp-p...
  • Page 26 42PD7500/42PD7500A (PW2) Video Color Temperature Adjustment (Normal) Item Applicable Model All models Preparation Procedure (1) Set signal generator output as Perform the following adjustment with the remote All White (Window ratio: 100%). control. (2) Component signal (480i) Set the CRT Color Analyzer (CA-100) at the center Video level : 0.700Vp-p...
  • Page 27 42PD7500/42PD7500A (PW2) Video Color Temperature Adjustment (B&W) Item Applicable Model All models Preparation Procedure Set signal generator output as All White Perform the following adjustment with (Window ratio: 100%). the remote control. Component signal (480i) Set the CRT Color Analyzer (CA-100) at Video level : 0.700Vp-p...

  • Page 28: Troubleshooting

    42PD7500/42PD7500A (PW2) 7. Troubleshooting How to get to Burn-in mode This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of PDP panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode is abnormal.
  • Page 29 42PD7500/42PD7500A (PW2) Power Power cannot be turned on (LED does not light) Is the input voltage applied to Power supply unit? (CN61 AC Fuse Filter PWB Power switch AC inlet F902 T6.3AH 250V Are the voltages applied to CN63 pins...
  • Page 30 42PD7500/42PD7500A (PW2) Teletext (Analog) [Tuner PWB Circuit] No Teletext (Analog) Are waveforms at QT03(E),QT04(E) and QT05(E) Check PTV2 connector or Video PWB Are waveforms at pin 46,47,48 of IT01 Check QT03,QT04,QT05 Is waveform at pin 31 of IT01 (TV,CV)? Check around IT01...
  • Page 31 42PD7500/42PD7500A (PW2) TV Signal [Tuner PWB Circuit] No Picture of TV Is waveform at Check pin 49 of PTV2 Video PWB (TV,CV?) Is waveform at pin 7 of I101 (TV,CV)? Check Q106 Is waveform at pin 18 of U101 (TV,CV)?
  • Page 32 42PD7500/42PD7500A (PW2) TV Sound [Tuner PWB Circuit] No sound of TV Are waveforms at pin 30,31 of IN01(L,R)? Check PTV2 connector or Video PWB Is voltage at Is waveforms at pin 2 of IN01 pin 22 of IN01 (SIF)? ("H")?
  • Page 33 42PD7500/42PD7500A (PW2) Picture [Video PWB Circuit] No picture, no color or dark YES (Sub picture) Sub picture ? Trouble of Sub picture (Single picture or Main) Are waveforms at TP65(Y), TP66(Cb) and TP67(Cr) ? Check Formatter PWB Are waveforms at...
  • Page 34 42PD7500/42PD7500A (PW2) Trouble of Sub picture Are waveforms at TP68(Y), TP69(Cb) and TP6A(Cr) ? Check Formatter PWB Are waveforms at 42pin(Y), 44pin(Cb) and 46pin(Cr) of I601? Check Q607, Q608 and Q609 YES (Component Video/RGB-Video) Component or RGB-Video Input ? Check I601 and Input terminals...
  • Page 35 42PD7500/42PD7500A (PW2) Synchronization [Video PWB Circuit] No Sync or Invalid Sync YES (Sub picture) Sub picture ? Trouble of Sub picture (Single picture or Main picture) Are waveforms at TP61(H) and TP62(V) ? Check Formatter PWB Are waveforms at 61pin(H) and 58pin(V)
  • Page 36 42PD7500/42PD7500A (PW2) Trouble of Sub picture Are waveforms at TP63(H) and TP64(V) ? Check Formatter PWB Are waveforms at 45pin(H) and 48pin(V) of I601? Check I602 YES (Component Video) Component Input ? Check I601 and Input terminals (RF/Composite Video/ S-Video/RGB-Video/HDMI)
  • Page 37 42PD7500/42PD7500A (PW2) HDMI [HDMI PWB Circuit] No picture, no color or dark Are waveforms at QH20<E>(Y), QH21<E>(Cb) and QH22<E>(Cr)? Check ETV3 and VIDEO PWB Are waveforms at 12pin(Y), 15pin(Cb) and 7pin(Cr) of IH13? Check QH20, QH21 and QH22 Check IH13...
  • Page 38 42PD7500/42PD7500A (PW2) [PSU PWB Circuit] NO POWER NO POWER Impedance FUSE check D001 D001 Impedance Check Q003/4 Q003,R003,R005 Over 130V Check Voltage D011(k)-Q501 Impedance Heat Sink check Q201 Under 130V Q201, D210,Q202,etc See NO PICTURE D153 IC101,R005 &SOUND 1 Impedance...

  • Page 39: Self-Diagnosis Function

    42PD7500/42PD7500A (PW2) 8. Self-Diagnosis Function This chassis has 2 modes of self-diagnosis function. (1) PDP panel check mode: It indicates the one latest record of the PDP panel failure with blinking of the power indication light (LED). (2) Signal circuit check mode: It indicates the check result on some points of the signal circuit and the history of them with On-Screen Display (OSD).
  • Page 40 42PD7500/42PD7500A (PW2) 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 the next steps: Preparation: 1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.

  • Page 41: Basic Circuit Diagram

    42PD7500/42PD7500A (PW2) 9. Basic circuit diagram Waveform I201(MAIN.V)(44) PIN I501 YIN(S-VIDEO)(44) PIN I501 YIN(Comb)(5) PIN I501 CIN(S-VIDEO)(43) PIN I201(SUB.V)(53) PIN 2Vp-p 1.0Vp-p 0.3Vp-p TP65(MY) TP66(MPB) TP68(SY) I501 CIN(Comb)(7) PIN TP69(SPB) 1. 2Vp-p 1.4Vp-p 0.3Vp-p TP67(MPR) TP61(MH) TP62(MV) TP6A(SPR) TP63(SH) TP64(SV) 5.0 Vp-p...
  • Page 42 42PD7500/42PD7500A (PW2) Basic circuit diagram list FILTER/TACT SW/LED RECEIVER/ SP. TERMINAL L/SP. TERMINAL R board ......42 VIDEO board 1 ............... 43 VIDEO board 2 ............... 44 VIDEO board 3 ............... 45 VIDEO board 4 ............... 46 TUNER board ................. 47 JOINT board 1 ................
  • Page 43 42PD7500/42PD7500A(PW2) 9. Basic circuit diagram PWB assembly FILTER / TACT SW / LED RECEIVER / SP TERMINAL L / SP TERMINAL R (PW2)
  • Page 44 42PD7500/42PD7500A(PW2) VIDEO board 1 (PW2)
  • Page 45 42PD7500/42PD7500A(PW2) VIDEO board 2 (PW2)
  • Page 46 42PD7500/42PD7500A(PW2) VIDEO board 3 (PW2)
  • Page 47 42PD7500/42PD7500A(PW2) VIDEO board 4 (PW2)
  • Page 48 42PD7500/42PD7500A(PW2) TUNER board (PW2)
  • Page 49 42PD7500/42PD7500A(PW2) PWB assembly JOINT 1 (PW2)
  • Page 50 42PD7500/42PD7500A(PW2) PWB assembly JOINT 2 (PW2)
  • Page 51 42PD7500/42PD7500A(PW2) PWB assembly AUDIO (PW2)
  • Page 52 42PD7500/42PD7500A(PW2) HDMI board (PW2)
  • Page 53 42PD7500/42PD7500A(PW2) I / F A board (PW2) I / F B board (PW2)
  • Page 54 42PD7500/42PD7500A(PW2) SM007 PSU Circuit - Sheet 1...
  • Page 55 42PD7500/42PD7500A(PW2) SM007 PSU Circuit - Sheet 2...
  • Page 56 42PD7500/42PD7500A(PW2) SM007 PSU Circuit - Sheet 3...
  • Page 57 42PD7500/42PD7500A(PW2) SM007 PSU Circuit - Sheet 4...
  • Page 58 42PD7500/42PD7500A(PW2) SM007 PSU Circuit - Sheet 5...

  • Page 59: Printed Wiring Board Diagram

    42PD7500/42PD7500A(PW2) 10. Printed wiring board diagram FILTER board LED/RECEIVER board SW board SP TERMINAL L board TACT SW board SP TERMINAL R board...
  • Page 60 42PD7500/42PD7500A(PW2) AUDIO board ( side-A ) AUDIO board ( side-B ) Main chip parts Main chip parts reference table reference table CIR.No. Position CIR.No. Position D408 D409 D411 D412 I401 I404 I405 I406 I407 I408 I409 I411 I412 PAF1 PAF2...
  • Page 61 42PD7500/42PD7500A(PW2) JOINT board ( side-A ) JOINT board ( side-B ) Main chip parts reference table CIR.No. Position CIR.No. Position DJ31 PJI2 DJ32 QJ31 DJ33 QJ32 IJ31 QJ33 PJF1 PJF2 PJF3 PJF5 PJJ1...
  • Page 62 42PD7500/42PD7500A(PW2) VIDEO board ( side-A ) Main chip parts reference table CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position D203 IE01 L305 L608 LE14 Q303 Q607 X215 XE07 D204 IE02...
  • Page 63 42PD7500/42PD7500A(PW2) VIDEO board ( side-B ) Main chip parts reference table CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position D201 Q213 Q513 Q616 D205 Q214 Q518 Q617 D206 Q215 Q519 Q618 D207 Q218 Q603 Q619 Q0E2 Q504 Q604 Q620 Q0E4...
  • Page 64 42PD7500/42PD7500A(PW2) TUNER board ( Side-A ) TUNER board ( Side-B ) Main chip parts reference table CIR.No. Position CIR.No. Position CIR.No. Position Q106 I101 LT02 I102 PTV2 Q108 I103 Q101 Q109 IN01 Q102 Q110 Q111 IT01 Q103 IT02 Q104 IT03...
  • Page 65 42PD7500/42PD7500A(PW2) HDMI board ( Side-B ) HDMI board ( Side-A ) Main chip parts reference table ( Side-A ) Main chip parts reference table ( Side-B ) CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position CIR.No. Position DH11 IH11 LH18...

  • Page 66: Psu Board

    42PD7500/42PD7500A(PW2) SM007 PSU Board...

  • Page 67: Block Diagram

    42PD7500/42PD7500A(PW2) 11. Block diagram...

  • Page 68: Psu Block Diagram

    42PD7500/42PD7500A(PW2) T101 IC101 D010 D011 STB5V RL002 AC in C108 STB3.3V RL001 D020 D021 T201 Q201 Chop Bridge Vcc5.1V C016 IC001 D001 Q003 T301 Q301 L005 C201 Va(60V) 370V T501 Q501 Vs(80V) Vcego,Vsago AC-detect IC202 Power off SM007 PSU Block Diagram...

  • Page 69: Connection Diagram

    42PD7500/42PD7500A(PW2) 12. Connection diagram...
  • Page 70 42PD7500/42PD7500A (PW2) PSU Board Connector Pin Assignments AC Input Signal 1 Signal 2 CN61 CN63 CNPPS AC(L) STB5.8V STB5.8V 3 AC(N) 4 Power off 4 Vcc5.1V 5 Vcc5.1V Panel 1 Panel 4 Adjust CN64 CN69 CN99 1 Vcc5.1V 3 Vcc5.1V 3 STB3.3V...

  • Page 71: Wiring Diagram

    42PD7500/42PD7500A(PW2) 13. Wiring diagram wiring diagram for 42PD7500 1/3 Specifi cation 1.This drawing shows the wiring diagram.Connection and wire styling in this model are in the fi gure. 2.This drawing shows the rear view of the set. 3.Insert the connector with the lock mechanizm until being fi rmly locked and the other connectors to the base part of post.
  • Page 72 42PD7500/42PD7500A(PW2) wiring diagram for 42PD7500 2/3 Specification 8.Part (*4) specification (*2) No.13 Connector CN64 Power Supply Unit PSC2 LED PWB(Solder side) CNPPS No.18 UL Tube No.13 The connector should be dressed through #00W2 SK Binder the cuttiong portion of the PWB.
  • Page 73 42PD7500/42PD7500A(PW2) wiring diagram for 42PD7500 3/3 From Connector Remark Number of Number of PWB A'ssy PWB A'ssy Receptacle Receptacle PTV1 TUNER ETV1 PVT1 VIDEO 8PPH PTV2 TUNER ETV2 PVT2 VIDEO 50PFFC PHV1 HDMI ETV3 PVH1 VIDEO 50PFFC From Connector Remark...
  • Page 74 42PD7500/42PD7500A(PW2) 14. Disassembly diagram (42V) #01F #791 #210 #250 (c) x 4 (a) x 25 42PD7500 CAUTION!- TO PREVENT ELECTRIC SHOCK DO NOT REMOVE COVER. WARNING 220-240V~ 50Hz 380W FOR QUALIFIED PERSONNEL ONLY. QL24775 S / N *42PD7500* *VE5D00001* #204...
  • Page 75 42PD7500/42PD7500A(PW2) The figure of FHP Panel Module (42V) Rear view The state of a panel simple substance. Attachment for packing Attachment for packing *Apply it before packing *Apply it before packing this panel module. this panel module. X-SUS PWB ASS'Y...
  • Page 76 42PD7500/42PD7500A(PW2) Panel Module (42V) [The assembled form in a product (before servicing)] Joint Holder X8 *Remove these holders and apply the handles/ attachment for packing.
  • Page 77 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...
  • Page 78 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: csgswe@hitachi-eu.com Fax: +39 02 48786381/2 Email: customerservice.italy@hitachi-eu.com HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...

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