Hitachi 32LD380TA Service Manual

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SERVICE MANUAL
The LCD panel made from AUO is used for this product.
Be sure to read this manual before servicing. To ensure safety from fi re, electric shock, injury, harmful
radiation and materials, various measures are provided in this Plasma Monitor.
Be sure to read cautionary items described in the manual before servicing.
These servicing instructions are for use by qualifi ed 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 qualifi ed 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 suffi ciently 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.
LOCATION OF CONTROL ---------------------------- 3
REMOTE CONTROL ----------------------------------- 4
GENERAL SPECIFICATIONS ----------------------- 5
DISASSEMBLY INSTRUCTIONS ----------------- 11
SERVICE MODE LIST ------------------------------- 13
WHEN REPLACING EEPROM -------------------- 13
ELECTRICAL ADJUSTMENTS -------------------- 14
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Caution

Service Warning

Contents

LCD Display

January 2006 Digital Media Division
No.024E
YK
32LD380TA
BLOCK DIAGRAM ------------------------------------ 17
PRINTED CIRCUIT BOARDS ---------------------- 23
INTERCONNECTION DIAGRAM ----------------- 29
MECHANICAL EXPLODED VIEW ---------------- 30
------- 33
-------- 35
Table of Contents
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Summary of Contents for Hitachi 32LD380TA

  • Page 1: Table Of Contents

    No.024E 32LD380TA SERVICE MANUAL The LCD panel made from AUO is used for this product. Caution Be sure to read this manual before servicing. To ensure safety from fi re, electric shock, injury, harmful radiation and materials, various measures are provided in this Plasma Monitor.
  • Page 2 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. Warning This symbol means "possible to die or heavy damage"...
  • Page 3: Location Of Control

    Location of controls You can adjust the angle of Anti-Tumble Measure the TV-screen for 2˚ forward Securing to a wall or pillar or for 6˚ backward from Using a commercially vertical angle. available cord, chain, and clamp, secure the set to a wall Left Side or pillar.
  • Page 4: Remote Control

    Remote Control Function Turn the unit on or off Sleep-Timer Display program position number Turn the sound on/off Select channel Select Teletext page Enter Password Switches between the present channel and the last selected channel Sub Page selection Call Menu Select TV-channel or Teletext page step by step In Menu: Setting In Standby: Turning on the unit...
  • Page 5: General Specifications

    GENERAL SPECIFICATIONS LCD Size / Visual Size 31.5 inch / 800.4mmV System LCD Type Color TFT LCD Number of Pixels(H x V) 1366(H) x 768(V) View Range Left/Right 85/85 degree Up/Down 85/85 degree Color System PAL/SECAM/NTSC Speaker 2 Speaker Position Front Size 2.2 x 5.0 inch...
  • Page 6 GENERAL SPECIFICATIONS On Screen Menu (TV) Display Menu Type Icon Picture Brightness Contrast Color Tint (NTSC Only) Sharpness DNR On/Off Color Temperature Blue Back Film Mode Audio NICAM Auto/Off Bass Treble Balance Perfect Volume Surround On/Off Speakers On/Off HDMI WOW SRS 3D WOW Focus WOW Trubass Setup...
  • Page 7 GENERAL SPECIFICATIONS Control Level Volume Brightness Contrast Color Tint (NTSC Only) Sharpness Tuning Bass Treble Balance HOR Position VER Position Clock Phase Horizontal Clock Amplitude Red Amplitude Green Amplitude Blue Backlight Nicam ST Tone 1/2 Pin Code Freeze CH/AV/PC Hotel Lock Wide Mode Sleep Timer Sound Mute...
  • Page 8 GENERAL SPECIFICATIONS G-10 Remote Unit RC-MA Control Glow in Dark Remocon Remocon Format HITACHI Format HITACHI Custom Code 50-AF h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Power ( Stand By ) Volume Up / Right...
  • Page 9 GENERAL SPECIFICATIONS G-11 Features Auto Shut Off SRS WOW(SRS 3D/Focus/Tru Bass) Variable Audio Out Auto Search CH Sort(CH Allocation) Channel Lock Just Clock Function Game Position CH Label T'Text Text type Fastext / Toptext Text Language English , French, Swedish, Hungarian Finnish, Turkish, German, Dutch Portuguese, Spanish, Italian, Greek Polish, Russian, Bulgarian,...
  • Page 10 Natural Dropping At 1 Corner / 3 Edges / Drop Test 6 Surfaces Height (cm) Container Stuffing Sets/40' container G-17 Material Cabinet Cabinet Front PS 94V0 Non-Halogen Cabinet Rear PS 94V0 Non-Halogen Non-Halogen Eyelet G-18 Environment Environmental standard requirement Green procurement of HITACHI Pb-free Phase3(Phase3A) WEEE...
  • Page 11: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 1-3.) REMOVAL NOTE Put Masking Tape (cotton tape) around the Flat Package...
  • Page 12 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 1-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
  • Page 13: Service Mode List

    SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote control for more than the standard time in the appropriate condition.
  • Page 14: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE FUNCTION FUNCTION H POSI OSD H POSI 60Hz Read and perform these adjustments when repairing the V POSI OSD V POSI 50Hz circuits or replacing electrical parts or PCB assemblies. R DRIVE (N) V POSI 60Hz CAUTION R CUT OFF (N) BAK LIGHT CENT...
  • Page 15 ELECTRICAL ADJUSTMENTS 2-2: Confirmation of Fixed Value (Step No.) Please check if the fixed values of each the adjustment items are set correctly referring below. (TV/AV/COMPONENT/HD-MI) COMPONENT HD-MI 60Hz 50Hz 60Hz 50Hz SECAM NTSC SECAM NTSC 480i 480p 720p 1080i 576i 576p 720p...
  • Page 16 ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) Item Wire Part No. HITACHI Part No. Item REF.NO. DESCRIPTION PART NO. HITACHI PART NO. Item REF.NO. DESCRIPTION PART NO. HITACHI PART NO. Item Board PART NO. HITACHI PART NO.
  • Page 17: Block Diagram

    SCALER/LVDS/MICON/ADC/JACK/SIDE JACK/AV SWITCH 1/REGULATOR BLOCK DIAGRAM CP4301 X8101 3.579545MHz YUV/HDMI/DVI Lch SW AV SW/ P.CON+12V +12V IC4304 SYNC COUNT NJM2534V IC8102 DAC_A-L TB1308FG INTERFACE DAC_A-R P.CON+5V AUDIO-L 32 34 36 AUDIO-R DIGITAL YUV/HDMI/DVI Rch SW D-SUB 24bit RGB IC4305 CP4302 D_CLK, D_EN, NJM2534V D_HS, D_VS...
  • Page 18 AV SWITCH 2/TUNER/21PIN/STEREO/SOUND AMP BLOCK DIAGRAM AV SW INPUT 1/2 IC4201 AN15853B-E1 J4205 YKC22-0780N VIDEO OUT J4210 MTJ-032-05A-30-FE V1-V V1-Y V1-C V1-L VL-R SIDE_Y_IN 11 V2-Y V1-L V2-C SIDE_C_IN VL-R V3-L SIDE_A_IN_R V2-V SIDE_A_IN_L V3-R V2-R 18 V7 SIDE_V_IN V2-L TU6001 SCALER/LVDS/ MICON/ADC/JACK/...
  • Page 19 POWER/SIDE JACK BLOCK DIAGRAM CP3801 30V or 24V 30V or 24V CP3803 5VSC 5VSC 5VSC P.CON+12V 12VSC 12VSC ST_BY_H AT+3.3V REG IC3804 PQ070XF01SZH CP3802 9VSC CP3804 AT+3.3V AT+5V RLY ON P.CON32V REG 5CST_BY IC3805 LA7995M-TLM VS ON P.CON+5V POWER ON-H P.CON+32V 3.3V CONTROL POWER ON-H...
  • Page 20 INTERFACE BLOCK DIAGRAM EEP_ROM IC3606 BR24L02F-WE2 HDMI INTERFACE IC3605 SiI9993CTG100 CD3601 Q3603 AnBPb 15 BUFFER DSDA AnGY 12 +12V Q3604 SCALER/LVDS/ AnRPr MICON/ADC/JACK/ DAC_A_L BUFFER DSCL SIDE JACK/ DAC_A_R HDMI AV SWITCH 1/ CONNECTOR REGULATOR CP3601 Q3612 Q3613 VSYNC 19 DET AUDIO-L 18 POWER AUDIO-R...
  • Page 21 MICON2 BLOCK DIAGRAM HDMI MICON IC IC3611 SST89E58RD2-40-C-TQJE X3601 RXT_RST# 36 RX1_RST 11.0592MHz H_INT RX1_INT 38 VCC IC3612 SN74AHC1G08DCKR VDD5 EA-/VPP Q3606 V-SYNC CSDA BUFFER 3 CSDA V_SYNC EEP ROM IC IC3608 BR24L32F-WE2 Q3609 Q3608 MUTE_CTL MUTE SW MUTE SW 2 CSCL Q3610 INTERFACE...
  • Page 22: Power Block Diagram

    POWER BLOCK DIAGRAM L511 F501 POWER SW CTL IC502 STR-X6768N T502 81420764 S Vcc FB +24V(INVERTER) RY501 D504 REGULATOR RELAY IC504 KIA431A-AT RY501 ALKS329 FEED BACK IC512 PS2561AL1-1-V(W) P.CON+5V TRANSFORMER T503 81350944 SOUND+B POWER SW CTL Q512 D510 IC503 STR-W6765 P.CON+12V S Vcc FB PFC INDUCTOR...
  • Page 23: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS AV/SIDE JACK (TOP SIDE) D4209 CP3801 CEE118B CP3803 CP3802 CP3804 C2202 CP4202 W844 W942 W887 W882 Q4214 CEE120B CP4205 CP4200 R6500 CP3807 R324 R311 R4200 B3801 D3802 R323 IC3804 R322 W834 W835 J4206 W959 L901 L303 R325 J4200_1 J4208 J4209...
  • Page 24 PRINTED CIRCUIT BOARDS AV/SIDE JACK (BOTTOM SIDE) Q4233 CEE118B R4413 R4414 CEE120B R3811 W884 Q3813 R3831 IC3801 W824 D304 D305 Q901 Q902 D303 Q4206 CEE119B R4225 Q4205 Q4203 R6017 IC3805 CME067B R4243 Q4211 Q4209 Q4204 Q4207 Q4201...
  • Page 25 PRINTED CIRCUIT BOARDS SCALER (TOP SIDE) SCALER (BOTTOM SIDE) C4302 CP7204 W881 R4313 C4314 Q4302 NR7201NR7202 B4303 R4305 R4328 R4309 IC3201 IC3202 W839 B4304 R4308 C7204 IC7201 R4315 W838 B4305 R4310 C7206 D3206 R4316 CEE087A CEE087A C107 W837 R161 R160 NR802 NR803 NR804 NR805 NR806 NR807 R105 C887...
  • Page 26 PRINTED CIRCUIT BOARDS POWER/OPERATION/REGULATOR/AC INLET/POWER SW/REMOCON (INSERTED PARTS) SOLDER SIDE CD506 CD519 CD518 CP514 W021 CP511 L505 W016 D543 SH504 SH503 W015 D557 W030 D536 D541 CEE148A D545 D548 W025 C583 C586 W029 W045 W024 HS505 HS504 W805 W804 D544 W017 D558 R589...
  • Page 27 PRINTED CIRCUIT BOARDS POWER/OPERATION/REGULATOR (CHIP MOUNTED PARTS) SOLDER SIDE CEE146A IC501 D540 Q512 Q506 Q514 Q524 R667 R666 R530 R510 Q525 Q504 R523 R659 Q505 R547 IC505 R2202 R557 R2203 D506 Q511 R2206 R603 Q515 R610 R604 R605 R601 R2204 Q520 R624 R2201...
  • Page 28 PRINTED CIRCUIT BOARDS HD-MI (TOP SIDE) HD-MI (BOTTOM SIDE) HS3601 Q3603 X3601 IC3606 Q3607 CP3604 D3602 C3642 R3619 R3631 R3678 C3643 D3613 R3621 R3640 R3679 Q3605 L3601 R3628 R3637 W813 L3603 R3647 Q3606 Q3612 D3609 Q3613 W812 R3641 L3602 C3638 W821 IC3602 W806...
  • Page 29: Interconnection Diagram

    INTERCONNECTION DIAGRAM NC H1 H1 H2 H1 H2 17 18 14 15 CP4200 CD4201_1 CP4201 SIDE_A_IN_R SIDE_A_IN_R CD3601 CP4301 SIDE_A_IN_L SIDE_A_IN_L INPUT 1/2 J4205 AUDIO_IN 4/5 CS_IN 4/5 SIDE_V_IN SIDE_V_IN J4204 J4211 SIDE_S_C SIDE_S_C HDMI TX HDMI TX SIDE_S_Y SIDE_S_Y HDMI RX HDMI RX CP4204...
  • Page 30: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 102F 102E 102C 102D 102K 102I 102G 102B 102J 102I 102H 102A 102J PCB320 (POWER SW PCB ASS'Y) 101B 101F 101E 101C 101D 101D PCBDA0 101F (REMOCON PCB ASS'Y) 101E 101A...
  • Page 31 MECHANICAL EXPLODED VIEW PCBDJ0 (HD-MI PCB ASS'Y) PCBDY0 (AC INLET PCB ASS'Y) PCBDS0 (SCALER PCB ASS'Y) PCBD90 (SIDE JACK PCB ASS'Y) 103B PCBD20 (AV PCB ASS'Y) 103A PCB240 (POWER PCB ASS'Y) PCBF10 (REGULATOR PCB ASS'Y) PCB270 (OPERATION PCB ASS'Y)
  • Page 32 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 141, 142 CD3810 TM101 BT001,002...
  • Page 33: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST *Synchronous arrangements parts REF. NO. PARTS NAME QTY/set PART NO. DESCRIPTION FRONT CABI ASS'Y SCREW TAP TITE(P) BRAZIER 3*10 CH REAR CABI ASS'Y SCREW TAP TITE(P) BRAZIER 3*10 CH COVER LCD SCREW,WASHER(A) M4*8 CH SCREW TAP TITE(B) BIND 3*8 CH TS07063 *Synchronous arrangements parts LCD PANEL...
  • Page 34 MECHANICAL REPLACEMENT PARTS LIST PLATE,JACK-SIDE ACCESSORY STAND SCREW TAP TITE(P) BRAZIER 3*10 CH TS07062 SCREW,WASHER(A) M4*8 CH TS06923 INST POLYBAG INSTRUCTION(RED CAUTION) OTHER PART SMALL PART SCREW TAP TITE(P) BRAZIER 3*10 CH TS07062 SCREW,WASHER(A) M4*8 CH TS06923 SCREW TAP TITE(B) WH7 3*10 CH TS07301 SCREW,TAP TITE(B) WH8 3*10 CH TS07302...
  • Page 35: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PARTS NAME QTY/set PART NO. DESCRIPTION P.C. BOARDS ASS'Y PCB240 POWER PCB ASS'Y CEE145A TE03731 PCB270 OPERATION PCB ASS'Y CEE150A TE03741 PCB320 POWER SW PCB ASS'Y CEE148A TE03751 PCBD20 AV PCB ASS'Y CME067B TE03761 PCBD90 SIDE JACK PCB ASS'Y CEE120B TE03771...
  • Page 36 32LD380TA YK No.024E Digital Media Division VG06371 Printed in Japan (JE)

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