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Hitachi 32HDL52 Service Manual
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Hitachi 32HDL52 Service Manual

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HITACHI
Service Manual
Be sure to read this manual before servicing. To ensure safety from fire, electric shock, injury, harmful
radiation and materials, various measures are provided in this LCD TV.
Be sure to read cautionary items described in the manual before servicing.
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric
shock, do not perform any servicing other than that described in the operating instructions unless you are
qualified to do so.
1. Since the Panel Module and the front Filter are made of glass, handling the broken Module and Filter
carefully and with caution in order not to receive injury.
2. Replacement work should be started after the Panel Module and the AC/DC Power supply have
become sufficiently cool.
3. Special care should be taken when working near the display area in order not to damage its surface.
4. The Panel Module should not be touched with bare hands in order to protect its surface from blemishes
and damage.
5. It is recommended that you use clean soft gloves during the replacement work in order to protect not
only the display area of the Panel Module but also yourself.
1. Features -----------------------------------------3
2. Specifications-----------------------------------4
3. Component Names----------------------------6
4. Service Points----------------------------------11
5. Adjustment -------------------------------------12
6. Troubleshooting -------------------------------22
7. Self Diagnosis Function----------------------28
No.
32HDL52/37HDL52
Caution
Service Warning
Contents
8. Block Diagram------------------------------------30
9. Wiring Block Diagram---------------------------32
10. Circuit Diagram---------------------------------34
12. Disassembly Diagram-------------------------60
13. Replacement Parts List ----------------------62
LCD Television
1
TA 004

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  • Page 1: Table Of Contents

    TA 004 HITACHI 32HDL52/37HDL52 Service Manual Caution Be sure to read this manual before servicing. To ensure safety from fire, electric shock, injury, harmful radiation and materials, various measures are provided in this LCD TV. Be sure to read cautionary items described in the manual before servicing.
  • Page 2 CAUTION FOR SAFETY Please read this page before repair the LCD TV. The following safety precautions are designed to help you stay safe and prevent accidents during the repair work. Please take note of these cautionary flags. Warning This means "Potential to sustain injury or even death." Caution This means "Potential to sustain breakage or irreparable damage."...

  • Page 3: Features

    PRECAUTIONS Cleaning the LCD TV's LCD screen panel Before cleaning the LCD TV, turn it off and disconnect the power plug from the power outlet. To prevent scratching or damaging of the LCD screen face, do not knock or rub the surface with sharp or hard objects. Clean the screen with a soft cloth moistened with warm water and dry with a second soft cloth.

  • Page 4: Specifications

    2. 32 / 37 HDL52 Specifications Display 32HDL52: Approx. 31.51 inches (697.685 (H) x 392.256 (V) mm, diagonal 800.4mm) dimensions Panel 37HDL52: Approx. 37.02 inches (819.6(H) x 460.8 (V) mm, diagonal 940.3mm) Resolution 1366 (H) x 768 (V) pixels 32HDL52: 8125(W) x 6642 (H) x 350(D) mm...
  • Page 5 Applicable video signals for each input terminal Signal D-sub Remarks Type S-video component Composite Terminal 480i/480p/1080i/720p inputs (NTSC). 480i/480p/1080i/720p inputs (NTSC). ( : Avaliable)

  • Page 6: Component Names

    3..Component names [Main unit] Control panel An Adjustment buttons are located on the side of the control panel Indications for each button's function can be found on the inside of the control panel cover. 1. POWER 4. VOL 7.MENU 2. CH 4.
  • Page 7 Power lamp Remote-control receiver Main power switch The main power switch is located at the right side bottom if from back view...
  • Page 8 [Remote Control] Power button: Press this button to turn the display set on or off. Mute button: Press to mute audio. Channel selector buttons: Select channel number.
  • Page 9 Return button: A. Press to return previous TV channel state in standard TV mode. B. Press to return previous OSD menu when the OSD menu opening. RECALL button: Press to display source input signal on the display. SLEEP button: Press to set sleep mode timer. There is 30 minutes, 60 minutes, 90 minutes, 120 minutes and turn off to select.
  • Page 10 Attention: To prevent children from getting injury by operating the swivel, please turn off the swivel function.

  • Page 11: Service Points

    4.Service points Lead-free solder This product uses lead-free solder (unleaded) to help protect 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℃). Lead-free solder indicator Printed circuit boards using lead-free solder are engraved with an "F."...

  • Page 12: Adjustment

    5.Adjustment 5.1 SERVICE (FACTORY) MODE ACCESS This model has a Factory Mode, where the technician can access and adjust some of the color temperature settings. The Factory Mode has several different appearances, depending on the input signal. Picture Setting for Factory Mode Table 1 NTSC : TV Table 2...
  • Page 13 FACTORY MODE NAVIGATION To navigate through the different menu items, use the button on the remote control. The menu items will be high-lighted green as navigation occurs. To access a particular adjustment parameter, use the “ENTER” button on the remote control, which will cause a new menu to appear. To back up from the FACTORY MODE, use the RETURN or EXIT button on the remote control.
  • Page 14 Menu Function Description Video Picture Mode OSD menu video mode default setting Video Display Contrast adjustment ( Back- end ) Brightness Display Brightness adjustment ( Back- end ) Tint Display Hue adjustment ( Back- end ) Color Display Saturation adjustment ( Back- end ) Detail Display Sharpness adjustment ( Back- end ) Backlight...
  • Page 15 Scalar Output R contrast factor adjustment ( color temperature function ) Scalar Con - R Output R = (( 'Output R + (Scalar Off-R)) * (Scalar Con-R) + (Scalar Bri-R) Output G contrast factor adjustment ( color temperature function ) Scalar Con - G Output G = (( 'Output G + (Scalar Off-G)) * (Scalar Con-G) + (Scalar Bri-G)
  • Page 16 Color Process Skin Range Low Skin color adjustment active range low Skin Range Skin color adjustment active range high High Skin Gain Low Skin color adjustment gain of range low Skin Gain High Skin color adjustment gain of range high Skin Color Skin color adjustment function enable Enable...
  • Page 17 PAGE INTENTIONALLY LEFT BLANK...
  • Page 18 PAGE INTENTIONALLY LEFT BLANK...
  • Page 19 PAGE INTENTIONALLY LEFT BLANK...
  • Page 20 PAGE INTENTIONALLY LEFT BLANK...
  • Page 21 5.3 Reset This model has a Reset Mode, where the technician can initial the EEPROM. Preliminary 1.To access the Reset Mode, the LCD TV must be running. Procedure 2.Press and hold #5 button (VOLUME 3.While continuing to hold the #5 , press and hold the #1 button (POWER).

  • Page 22: Troubleshooting

    6.Troubleshooting The flow chart shown below will help you to troubleshoot your LCD TV set with it doesn’t display normally. Each procedure offers a simple way to check for system errors. Before starting, ensure that there is a signal in and that the LCD TV is turned on.

  • Page 28: Self Diagnosis Function

    7.Self Diagnosis Function If a problem arises while you are using the TV, please read this self diagram function guide carefully before you ask to have the TV repaired. You may be able to fix it easily by yourself. For example, if the mains plug is disconnected from the mains outlet, or the TV aerial has problems, you may think there is a problem with the TV itself.
  • Page 29 Poor sound: Have you adjusted BASS or TREBLE properly? If not, follow the description “SOUND ADJUSTMENT”. If the TV does not respond to the remote control: Have the batteries of the remote control worn out? Follow the description “PUTTING THE BATTERIES INTO THE ROMOTE CONTROL”...

  • Page 30: Block Diagram

    8.Block Diagram LCD-TV HITACHI 32/37-US VIDEO PART...
  • Page 31 HITACHI 32/37-US AUDIO PART...

  • Page 32: Wiring Block Diagram

    9.Wiring Block diagram...
  • Page 33 Item Wire Part No. P005A Wire Ass'y W30/30P Conn. E057430016 V901A Wire Ass'y W12/12/12P Conn. E057412014 P905A Wire Ass'y W4/2P Conn. E057404016 SW01A Wire Ass'y Inlet W3P Conn. E057403014 P008A Wire Ass'y W12/12P Conn. E057412013 P015A Wire Ass'y W6/6P Conn. E057406005 P011A Wire Ass'y W8/8P Conn.

  • Page 34: Circuit Diagram

    10.Circuit Diagram Main Board (PWB-0952)
  • Page 51 Power Board...

  • Page 55: Printed Wiring Board Diagram

    11. Printed Wiring Board Diagram Main Board-Top side(PWB-0952)
  • Page 56 Rear I/O Board2- (PWB-0887)
  • Page 57 (Power board)

  • Page 60: Disassembly Diagram

    12. Disassembly Diagram Mechanical...
  • Page 61 Packing View...

  • Page 62: Replacement Parts List

    13.Replacement parts list: 32HDL52 Mechanical part list (32HDL52) HITACHI PART DESCRIPTION PART NO. Q’TY. FRONT BEZEL ASSY 5095670923 TS06571 － FRONT BEZEL E641105900 － IR LENS E642853500 － LED LENS E642853600 － LED METAL E642741000 － IPS LABEL E642442200 －...
  • Page 63 TS06564 PP+SW+PW 6X18 G190567618 TS06565 BTBW 4X12 G000305112 TS06566 PP 6X12 G001391616 TS06567 PZP 3X8 G134161182 TS06568 Packing part list (32HDL52) HITACHI PART DESCRIPTION PART NO. Q’TY. RS CARTON I513614156 TJ04141 Bottom Tray I513614556 TJ04091 EPS PAD ASS I523610556 TJ04101 －...
  • Page 64 E053911107 at the V901B same time. KLS-EE32CI-S and V901C at the same time. SP01 Speaker Box Ass'y ORIENT E055100006 TE03041 2B01-MA 32’’MODEL LABEL (TMX) E030538701 TJ04151 2B01-WA MODEL LABEL (TCN) E030538601 TJ04153 － BT01 Battery Alkaline (HITACHI) E050100002 32HDL52...
  • Page 65 32HDL52 Wire Ass'y VGA Signal P101 E057315500 TE02271 Cable P102 Wire Ass'y RCA Cable E057303500 TE02273 P103 Wire Ass'y S-Video Cable E057304500 TE02272 P104 Swivel Cable E057308500 TE02274 P807 Power Cord UL I-Sheng E056705900 TE02531 REMOTE CONTROL RCU1 E052731080 TE03051...

  • Page 66: Hitachi Part

    32HDL52 ME service part list with photo (32HDL52) Circuit Description Part No. HITACHI Part FRONT BEZEL 5095670923 TS06571 ASSY － FRONT BEZEL E641105900 － IR LENS E642853500 － LED LENS E642853600 － LED METAL E642741000 32HDL52...

  • Page 67: Na76791K

    32HDL52 － IPS LABEL E642442200 － ENERGY STAR E642444300 LABEL BASE CHASSIS E642740700 NA76791K ASSY LCD MAIN E642740300 TS06481 BRACKET TATUNG BOTTOM E642740900 NA75403K COVER 32HDL52...

  • Page 68: Pc06501K

    32HDL52 POWER E642853100 PC06501K BUTTON ASSY POWER E642740600 TS06491 SWITCH METAL POWER E646521800 TS06501 SWITCH BARRIER SHEET SHAFT SUPT E642681700 TS06511 SIDE INPUT E642853800 PH35845 ASSY 32HDL52...

  • Page 69: Ph35831

    32HDL52 － SIDE INPUT E642853200 CASE － SIDE INPUT E642740500 BRACKET SIDE E642853700 PH35831 CONTROL ASSY － M10a SIDE CONT E642853300 CASE － M10b SIDE CONT E642740400 BRACKET 32HDL52...

  • Page 70: Ts06521

    32HDL52 － M10c CONTROL KEY E642853400 DIGITAL E646258301 TS06521 BOARD SHIELD MAIN BOARD E646258401 TS06531 SHIELD TERMINAL E646258600 TS06541 BOARD SHIELD TERMINAL 5095670924 TS06232 BOARD ASSY 32HDL52...

  • Page 71: Ts06141

    32HDL52 － M14a TERMINAL E642324200 PANEL － M14b TERMINAL E642442000 PANEL LABEL TUNER PANEL E642323901 TS06141 POWER E648746600 TS06551 SOCKET BRACKET BACK COVER 5096954739 TS06591 ASSY 32HDL52...
  • Page 72 32HDL52 － M17a BACK COVER E641105800 － M17b WARNING E030539009 LABEL － M17c LEAD E030539011 DISPOSAL LABEL － M17d TUNER LABEL E642442100 － M17e SWIVEL LABEL E642444800 － M17f PLASTIC HOOK E642683000 32HDL52...
  • Page 73 32HDL52 － M17g AC CABLE E642682000 CLAMP STAND ASSY E642740800 QJ01722K STAND SPT E642741100 QJ01731K EE service part list with photo (32HDL52) Circuit Description Part No. HITACHI Part PB01 POWER F693006619 TE02952 MODULE + CASE FSP PB02 POWER F693006623 TE02951...
  • Page 74 32HDL52 DTV1 ASS'Y 5053911078 TE02461 PCB(ZAT-520 MB ZINWELL) ASSEMBLY, 5095670911 TE02961 -0887 PCB-REAR ASSEMBLY, 5097655601 TE02971 -0918 PCB-LED/IR ASSEMBLY, 5098801066 TE02981 -0952-A PCB-MAIN ASSEMBLY, 5098801067 TE02991 -0952-B PCB-KEY PAD 32HDL52...
  • Page 75 32HDL52 ASSEMBLY, 5098801068 TE03001 -0952-C PCB-AC SWITCH ASSEMBLY, 5098801069 TE03011 -0952-D PCB-SIDE I/O P001A Wire Ass'y E057404010 TE03021 W4/4P Conn. P005A Wire Ass'y E057430022 TE03022 W30/30P Conn. P008A Wire Ass'y E057412013 TE03023 W12/12P Conn. 32HDL52...
  • Page 76 32HDL52 P010A Wire Ass'y E057405015 TE03024 W5/5P Conn. P011A Wire Ass'y E057408008 TE03025 W8/8P Conn. P015A Wire Ass'y E057406005 TE03026 W6/6P Conn. P019A Wire Ass'y E057420008 TE03027 W20/12/6P Conn. P020A Wire Ass'y E057420009 TE03028 W20/20P Conn. 32HDL52...
  • Page 77 32HDL52 P905A Wire Ass'y E057404016 TE03029 W4/2P Conn. SW01A Wire Ass'y E057403014 TE03031 Inlet W3P Conn. CN06A Wire Ass'y E057406008 TE03032 W6/6P Conn. CN09A Wire Ass'y E057402012 TE03033 W2/2P Conn. V901A Wire Ass'y E057412014 TE03034 W12/12/12P Conn. 32HDL52...
  • Page 78 32HDL52 V901B 32" E053911106 TE03061 * Replace * Replace INVERTER V901B and E053911106 and UNIT V901C at E053911107 at the same the same time. 6632L-0211A time. KLS-EE32CI- V901C 32" E053911107 TE03061 * Replace * Replace INVERTER V901B and E053911106 and...
  • Page 79 32HDL52 － BT01 Battery E050100002 Alkaline P101 Wire Ass'y E057315500 TE02271 VGA Signal Cable P102 Wire Ass'y E057303500 TE02273 RCA Cable P103 Wire Ass'y E057304500 TE02272 S-Video Cable P104 Swivel Cable E057308500 TE02274 32HDL52...
  • Page 80 32HDL52 P807 Power Cord E056705900 TE02531 UL I-Sheng RCU1 REMOTE E052731080 TE03051 CONTROL FORWARD Y001 USER'S E030037006 TE02555 MANUAL Y002 LEAD E030539011 TJ04161 DISPOSAL LABEL Y003 WARNING E030539009 TJ04162 LABEL 32HDL52...
  • Page 81 32HDL52 Y004 QUICK E030037007 TE02556 SETUP GUIDE Y005 WARRANTY E030230011 TE02561 CARD(FOR CANADA) Y006 WARRANTY E030230014 TE02562 CARD(FOR USA) 32HDL52...
  • Page 82 37HDL52 Mechanical part list (37HDL52) HITACHI PART DESCRIPTION PART NO. Q’TY. FRONT BEZEL ASSY 5095670925 TS06572 － FRONT BEZEL E641106400 － IR LENS E642853500 － LED LENS E642853600 － LED METAL E642741000 － IPS LABEL E642442200 － ENERGY STAR LABEL...
  • Page 83 PP+SW+PW 6X18 G190567618 TS06565 BTBW 4X12 G000305112 TS06566 PP 6X12 G001391616 TS06567 PZP 3X8 G134161182 TS06568 Packing part list (37HDL52) HITACHI PART DESCRIPTION PART NO. Q’TY. Print CARTON I513620156 TJ04142 Carton Tray I513624256 TJ04092 EPS Bottom ASSY I523620656 TJ04102 －...
  • Page 84 SP01 Speaker Box Ass'y ORIENT E055100006 TE03041 2B01-MA 37’’MODEL LABEL (TMX) E030538702 TJ04152 2B01-WA MODEL LABEL (TCN) E030538601 TJ04153 － BT01 Battery Alkaline (HITACHI) E050100002 Wire Ass'y VGA Signal P101 E057315500 TE02271 Cable 37HDL52...
  • Page 85 37HDL52 P102 Wire Ass'y RCA Cable E057303500 TE02273 P103 Wire Ass'y S-Video Cable E057304500 TE02272 P104 Swivel Cable E057308500 TE02274 P807 Power Cord UL I-Sheng E056705900 TE02531 REMOTE CONTROL RCU1 E052731080 TE03051 FORWARD Y001 USER'S MANUAL E030037006 TE02555 Y002 LEAD DISPOSAL LABEL E030539011 TJ04161 Y003...
  • Page 86 37HDL52 ME service part list with photo (37HDL52) Circuit Description Part No. HITACHI Part FRONT BEZEL 5095670925 TS06572 ASSY － FRONT BEZEL E641106400 － IR LENS E642853500 － LED LENS E642853600 37HDL52...
  • Page 87 37HDL52 － LED METAL E642741000 － IPS LABEL E642442200 － ENERGY STAR E642444300 LABEL BASE CHASSIS E648748100 NA76801K ASSY LCD MAIN E642740300 TS06481 BRACKET TATUNG 37HDL52...
  • Page 88 37HDL52 BOTTOM E642740900 NA75403K COVER POWER E642853100 PC06501K BUTTON ASSY POWER E642740600 TS06491 SWITCH METAL POWER E646521800 TS06501 SWITCH BARRIER SHEET SHAFT SUPT E642681700 TS06511 37HDL52...
  • Page 89 37HDL52 SIDE INPUT E642853800 PH35845 ASSY － SIDE INPUT E642853200 CASE － SIDE INPUT E642740500 BRACKET SIDE E642853700 PH35831 CONTROL ASSY － M10a SIDE CONT E642853300 CASE 37HDL52...
  • Page 90 37HDL52 － M10b SIDE CONT E642740400 BRACKET － M10c CONTROL KEY E642853400 DIGITAL E646258301 TS06521 BOARD SHIELD MAIN BOARD E646258401 TS06531 SHIELD TERMINAL E646258600 TS06541 BOARD SHIELD 37HDL52...
  • Page 91 37HDL52 TERMINAL 5095670926 TS06233 BOARD ASSY － M14a TERMINAL E642324200 PANEL － M14b TERMINAL E642442000 PANEL LABEL TUNER PANEL E642323901 TS06141 POWER E648746600 TS06551 SOCKET BRACKET 37HDL52...
  • Page 92 37HDL52 BACK COVER 5096954740 TS06601 ASSY － M17a BACK COVER E641105700 － M17b WARNING E030539009 LABEL － M17c LEAD E030539011 DISPOSAL LABEL － M17d TUNER LABEL E642442100 － M17e SWIVEL LABEL E642444800 37HDL52...
  • Page 93 37HDL52 － M17f PLASTIC HOOK E642683000 － M17g AC CABEL E642682000 CLAMP STAND ASSY E642740800 QJ01722K STAND SPT E642741100 QJ01731K 37HDL52...
  • Page 94 37HDL52 EE service part list with photo(37HDL52) Circuit Description Part No. HITACHI Part PB01 POWER F693006619 TE02952 MODULE + CASE FSP PB02 POWER F693006623 TE02951 MODULE DTV1 ASS'Y 5053911078 TE02461 PCB(ZAT-520 MB ZINWELL) ASSEMBLY,P 5095670907 TE02962 -0887 CB-REAR I/O ASSEMBLY,...
  • Page 95 37HDL52 ASSEMBLY, 5098801070 TE02982 -0952-A PCB-MAIN ASSEMBLY, 5098801071 TE02992 -0952-B PCB-KEY PAD ASSEMBLY, 5098801072 TE03002 -0952-C PCB-AC SWITCH ASSEMBLY, 5098801073 TE03012 -0952-D PCB-SIDE I/O P001A Wire Ass'y E057404010 TE03021 W4/4P Conn. 37HDL52...
  • Page 96 37HDL52 P005A Wire Ass'y E057430022 TE03022 W30/30P Conn. P008A Wire Ass'y E057412013 TE03023 W12/12P Conn. P010A Wire Ass'y E057405015 TE03024 W5/5P Conn. P011A Wire Ass'y E057408008 TE03025 W8/8P Conn. P015A Wire Ass'y E057406005 TE03026 W6/6P Conn. 37HDL52...
  • Page 97 37HDL52 P019A Wire Ass'y E057420008 TE03027 W20/12/6P Conn. P020A Wire Ass'y E057420009 TE03028 W20/20P Conn. P905A Wire Ass'y E057404016 TE03029 W4/2P Conn. SW01A Wire Ass'y E057403014 TE03031 Inlet W3P Conn. CN06A Wire Ass'y E057406008 TE03032 W6/6P Conn. 37HDL52...
  • Page 98 37HDL52 CN09A Wire Ass'y E057402012 TE03033 W2/2P Conn. V901A Wire Ass'y E057412014 TE03034 W12/12/12P Conn. V901B 37" E053911104 TS06372 * Replace * Replace INVERTER V901B E053911104 and UNIT E053911105 at the V901C at same time. 6632L-0201A the same KLS-EE37CI- time. V901C 37"...
  • Page 99 37HDL52 2B01-M 37’’MODEL E030538702 TJ04152 LABEL (TMX) 2B01-W 37’’MODEL E030538601 TJ04153 LABEL (TCN) － BT01 Battery E050100002 Alkaline P101 Wire Ass'y E057315500 TE02271 VGA Signal Cable P102 Wire Ass'y E057303500 TE02273 RCA Cable 37HDL52...
  • Page 100 37HDL52 P103 Wire Ass'y E057304500 TE02272 S-Video Cable P104 Swivel Cable E057308500 TE02274 P807 Power Cord E056705900 TE02531 UL I-Sheng RCU1 REMOTE E052731080 TE03051 CONTROL FORWARD Y001 USER'S E030037006 TE02555 GUIDE 37HDL52...
  • Page 101 37HDL52 Y002 LEAD E030539011 TJ04161 DISPOSAL LABEL Y003 WARNING E030539009 TJ04162 LABEL Y004 QUICK E030037007 TE02556 SETUP GUIDE Y005 WARRANTY E030230011 TE02561 CARD(FOR CANADA) Y006 WARRANTY E030230014 TE02562 CARD(FOR USA) 37HDL52...

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