Hitachi 26LD8000TA Service Manual Download | Manualshive

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Summary of Contents for 26LD8000TA

Page 1: ... do so Caution 1 Features 3 2 Specifications 4 3 Component names 5 4 Service point 7 5 Adjustment 8 6 Troubleshooting 16 7 Self diagnosis function 21 8 Block diagram 23 9 Wiring diagram 25 10 Circuit diagram 26 11 Printed wiring board diagram 42 12 Disassembly diagram 46 13 Replacement parts list 48 Contents 1 Replacement work should be started after the Panel Module and the AC DC Power supply hav...

Page 2: ...event accidents during the repair work z 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 z Also note these cautionary icons This means CAUTION This means MUST This means POTENTIAL ELECTRIC SHOCK This means DO NOT ...

Page 3: ...ge parts and supply It is possible to sustain severe injury or death if you accidentally touch the wrong parts You must disconnect the power supply while servicing reassembling or change parts If you touch a live connection it is possible to sustain severe injury or death Use recommended components Every part such as removed screws components and wiring must be restored to their prior conditions a...

Page 4: ...kaline detergents alcoholic detergents abrasive cleaners powder soaps OA cleaners car wax glass cleaners and so on They will cause discoloration scratches or cracks 1 Features z Enhanced definition LCD display panel The 26 inch color LCD display panel with a resolution of 1366 H x 768 V pixels creates a widescreen picture This panel features a thin form factor and can be hung on a wall with an opt...

Page 5: ...t Y PbPr Y CbCr RCA AV1 L R audio input terminal RCA AV1 L R audio input terminal RCA AV2 Component input Y PbPr Y CbCr RCA AV2 L R audio input terminal RCA AV1 L R audio input terminal RCA AV3 Composite video input terminal RCA AV3 S video input teminal AV3 L R audio input terminal RCA AV4 Composite video input terminal RCA AV4 S video input teminal AV4 L R audio input terminal RCA Input signals ...

Page 6: ...cations for each button s function can be found on the inside of the control panel cover 1 SUB POWER 4 VOL X 7 MENU 2 PROGRAM S 4 RIGHTX 7 ENTER 2 UP S 5 VOL W 3 PROGRAM T 5 LEFT W 3 DOWN T 6 INPUT Normal Button Action 6 EXIT Button Action when MENU engaged The main power switch is located at the right side of the back ...

Page 7: ...7 Remote Control ...

Page 8: ...leaded solder z Remove all lead free solder from soldered joints when replacing components z 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...

Page 9: ... Factory Model PAL Table1 TV Table2 AV composite SV S Video Table3 SV S video Table4 576i component Table5 576p component Table6 1080i 50 component Table7 720P 50 component Preliminary 1 To access the Factory Mode the TV must be running Procedure 2 Press and hold the 3 and 4 button PROGRAM T and VOLUMES 3 While continuing to hold the 3 and 4 button press and hold the 1 button SUB POWER 4 After bot...

Page 10: ...s 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 To leave the FACTORY MODE press POWER button on the remote control ENTER ...

Page 11: ...deo decoder Cr Saturation adjustment Front end TCD3 Sat Video decoder Cb Saturation adjustment Front end YC Delay Video decoder YC delay adjustment Front end Peaking Range Video decoder sharpness peaking range Front end Ypeak Y YH peak_gain peak_range where Y is the luma and YH is the high frequency luma only Peaking Gain Video decoder sharpness peaking gain Front end Peaking Enable Video decoder ...

Page 12: ...nd Black Ext Start Black stretch start point control factor Higher value means more black stretch Back end Black Ext Gain1 Black stretch gain1 Black Ext Gain2 Black stretch gain2 U Delay Display U delay comparing with Y V Delay Display Y delay comparing with V Color Process Skin Range Low Skin color adjustment active range low Skin Range High Skin color adjustment active range high Skin Gain Low S...

Page 13: ...olor Temp 7500K High x 0 266 0 01 y 0 264 0 01 Color Temp 15000K 5 2 Firmware update This model has a Debbug Mode where the technician can debbug and update the firmware Preliminary 1 To access the Bebbug Mode the TV must be running Procedure 2 Press and hold the 2 and 5 button PROGRAM S and VOLUMET 3 After both buttons have been held down for five 5 seconds then release the 2 and 5 button 4 Click...

Page 14: ...14 6 Load BIN file 7 Click OK button ...

Page 15: ...15 8 Click Write Device icon 9 IAP is finished while following massage is shown 10 After IAP is done please disconnect and reconnect AC power switch and do initialization ...

Page 16: ...old the 4 and 5 button VOLUMES and VOLUME T 7 While continuing to hold the 4 and 5 button press and hold the 1 button SUB POWER 8 After both buttons have been held down for five 5 seconds first release the 1 button then release the 4 and 5 button 9 As stated previously the input that the TV had selected at the time will determine which actual INITIALIZATION display will show up See below ...

Page 17: ...chart shown below will help you to troubleshoot your 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 TV is turned on ...

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Page 22: ...from other equipment stripes or noise may appear in the picture Move any equipment such as an amplifier personal computer or a hair drier that can cause interference away from your TV Or try moving the TV If the aerial suffers interference from a ratio tower or high voltage wire please contact your local dealer z If the TV suffers interference from signals reflecting from mountains or buildings do...

Page 23: ...may be normal If you hear crackling sounds frequently while you are viewing the TV there may be other causes As a precaution ask your service technician to inspect it z The top of the TV and the screen may become hot during use but this has no effect on the performance of the TV Ensure that the ventilation holes are not blocked z When the picture is unstable the screen may become white for a momen...

Page 24: ...24 8 Block Diagram LCD TV ...

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Page 26: ...26 9 Wiring Block Diagram ...

Page 27: ...27 10 Circuit Diagram Main Board PWB 0885 ...

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Page 40: ...40 I O Board1 PWB 0886 ...

Page 41: ...41 I O Board2 PWB 0887 ...

Page 42: ...42 Power Board ...

Page 43: ...43 11 Printed Wiring Board Diagram Main Board Top side PWB 0885 ...

Page 44: ...44 I O Board1 Top Side PWB 0886 I O Board2 Top Side PWB 0887 ...

Page 45: ...45 Power Board ...

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Page 47: ...47 12 Disassembly Diagram Mechanical ...

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Page 49: ... E642026412 4 e SPONGE V E642026413 4 f IPS LABEL E642442200 1 M2 SIDE INPUT PANEL ASSEMBLY 5095670826 1 SIDE INPUT PANEL E642681500 1 SIDE TERMINAL PLATE E642441800 1 M3 TUNER PANEL E642323900 1 M4 TERMINAL PANEL ASSEMBLY 5095670827 1 TERMINAL PANEL E642324200 1 TERMINAL PLATE E642441700 1 M5 BACK COVER ASSEMBLY 5095670824 1 a BACK COVER E641104810 1 b POWER BUTTON ASM E642852501 1 c TUNER PLATE ...

Page 50: ... STAND TURN COVER ASIA E641418202 1 b STAND COVER ASIA E641418302 1 c STAND BASE E641418400 1 d STAND RING E641419600 1 e STAND BRACKET E640409900 1 f FOOT PAD E642030200 6 g STAND HINGE E648746800 1 h STAND BASE METAL E640409800 1 i STAND BASE LOOP E648743200 3 M8 STAND HINGE COVER ASIA E641418502 1 M9 PRWP M3X14 5640228400 8 M10 CABLE CLAMP E642682000 1 M11 TAPE OF AL FOIL a TAPE OF AL FOIL E648...

Page 51: ...48006507 2 c TAPE OF AL FOIL E648006520 1 M12 RS CARTON I513580256 1 M13 EPS Bottom BR 1 M14 EPS Bottom BL I523580256 1 M15 EPE Bag I533319256 1 M16 EPS Top TR 1 M17 EPS Top TL I523580156 1 M18 Clip PE Bag I533251157 1 51 ...

Page 52: ...1 P807 POWER CORE UK A05 E056706081 1 V901 26 TFT Panel Module LPL LC260WX2 SL01 E051253001 1 SW01B QUICK TIE PVC E071000001 1 P008A Wire Ass y W12 12P E057412007 1 P010A Wire Ass y W5 5P E057405010 1 P011A Wire Ass y W8 8P E057408004 1 P015A Wire Ass y W6 6P E057406003 1 V901A Wire Ass y W30 30P E057430010 1 V091B Wire Ass y W12 14 12P E057414004 1 P905A Wire Ass y W4 2P E057404012 1 SW01A Wire A...

Page 53: ...105 MEMO ...

Page 54: ...YK No 019E Digital Media Division TP01511 26LD8000TA ...

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