Toshiba 19HLV87 - 19" LCD TV Service Manual Download

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SERVICE MANUAL

LCD TV/DVD COMBINATION

DOCUMENT CREATED IN JAPAN,

Feburuary

, 2007 GREEN

19HLV87

FILE NO. 810-2007

The above model is classified as a green product (*1), as indicated by the underlined serial number.

This Service Manual describes replacement parts for the green product. When repairing this green

product, use the part(s) described in this manual and lead-free solder (*2).

For (*1) and (*2), see the next page.

Summary of Contents for 19HLV87 - 19" LCD TV

Page 1: ...0 200715GR The above model is classified as a green product 1 as indicated by the underlined serial number This Service Manual describes replacement parts for the green product When repairing this green product use the part s described in this manual and lead free solder 2 For 1 and 2 see the next page l ...

Page 2: ...ement of parts is not only confined to manufacture The same green parts used in manufacture must also be used as replacement parts 2 LEAD FREE SOLDER This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead free solder must be used in the servicing and repair of this product WARNING This produc...

Page 3: ...quired Marking The rating sheet and the safety caution are on the rear of the unit CERTIFICATION COMPLIES WITH FDA RADIATION PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J PREPARATION OF SERVICING The laser diode used for a pickup head may be destroyed with external static electricity Moreover even if it is operating normally after repair when static electricity discharge is received at the time of rep...

Page 4: ...tion transformer for this check Use a leakage current tester Fig 1 or a metering system which complies with Underwriters Laboratories UL 1492P Measure for current from all exposed metal parts of the cabinet to a known earth ground particularly any exposed metal part having a return path to the chassis Any current measured must not exceed 0 5mA Any measurement not within the limits outlined above a...

Page 5: ...al power company For units intended to operate from battery power or other sources refer to the operating instructions GROUNDING OR POLARIZATION This unit is equipped with a polarized alternating current line plug a plug having one blade wider than the other This plug will fit into the power outlet only one way This is a safety feature If you are unable to insert the plug fully into the outlet try...

Page 6: ... equipment turn off the power and unplug all of the equipment from the wall outlet Failure to do so may cause an electric shock and serious personal injury Read the owner s manual of the other equipment carefully and follow the instructions when making any connections SOUND VOLUME Reduce the volume to the minimum level before you turn on the product Otherwise sudden high volume sound may cause hea...

Page 7: ...ICAL CODE ANTENNA DISCHARGE UNIT NEC SECTION 810 20 ANTENNA LEAD IN WIRE GROUNDING CONDUCTORS NEC SECTION 810 21 GROUND CLAMPS POWER SERVICE GROUNDING ELECTRODE SYSTEM NEC ART 250 PART H GROUND CLAMP ELECTRIC SERVICE EQUIPMENT NEC NATIONAL ELECTRICAL CODE S2898A ...

Page 8: ...e soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector NOTE Fig 1 Before your operation please read PREPARATION OF SERVICING Use the Lead Free solder Manual soldering conditions Soldering temperature 350 5o C Soldering time Within 2 seconds Soldering combination Sn 3 0Ag 0 5Cu When Soldering Removing of solder use the draw in equipment over the Pick Up ...

Page 9: ... AV SWITCH STEREO SOUND AMP REGULATOR F 5 F 6 POWER PRINTED CIRCUIT BOARDS G 1 G 2 G 3 G 4 G 5 G 6 MAIN REMOCON INPUT OPERATION DVD DECODER SCHEMATIC DIAGRAMS H 1 H 2 H 3 H 4 H 5 H 6 H 7 H 8 H 9 H 10 H 11 H 12 H 13 H 14 H 15 H 16 H 17 H 18 H 19 H 20 H 21 H 22 MSD116L MAIN MSD116L POWER MAIN SYS POWER MAIN MCU RTC MAIN DEMODULATOR MAIN SDRAM MAIN AUDIO MAIN TUNER MAIN AV INPUT OUTPUT MAIN YPBPR VGA...

Page 10: ...log Tuner Antenna Yes Rear Input Digital Tuner Antenna Yes Rear AV1 in Video RCA S Video Audio RCA 2 AV2 in Video RCA Yes Side S Video No Audio RCA 2 Yes Side AV3 in Video RCA S Video Audio RCA 2 Scart1 Input Output Scart2 Input Output Scart3 Input Output Component1 in RCA 3 Component1 in Audio RCA 2 Component2 in RCA 3 Component2 in Audio RCA 2 PC in Dsub15 PC in Audio 㩷㩷㩷RCA 2 19inch 1440 H x 90...

Page 11: ...r Feature Comb Filter Video Motion Adaptive De interlacing CTI LTI Color Temperature Cool Warm䊶䊶䊶 Picture Mode Sports Movie 䊶䊶䊶 Picture Size Picture Scroll No Auto Aspect Cinema Mode Film Mode Component HD HD Ready HDMI DVI GCR Contrast Enhancer DNR Cable Clear Individual Video Setting EPG PIP POP Multi Window Freeze frame OPC Feature Speaker Output Audio Speaker No Tweeter Speaker Woofer Speaker ...

Page 12: ...Power Consumption Energy Star Stand By power consumption Yes 1 0W OSD Menu Type TV OSD Language English French Spanish German Italian Portuguese Dutch Hungarian Sw dish Norway Finnish Danish Turkish Greek Russian Polish Bulgarian Serbian Croatian Slovenian Czech Slovak Rumanian Malay Vietnam Thai Other T Text Interface Switch Main Power Power Channel Up Channel Down Volume Up Volume Down Input Sel...

Page 13: ...0 350 VGA 640 480 720 400 SVGA 800 600 832 624 XGA 1024 768 1152 864 848 480 WXGA 1280 720 WXGA 1280 768 WXGA 1360 768 Quad VGA 1280 960 SXGA 1280 1024 Auto Adjust Plug Play Power Management HDMI Input Support Format 640 480 Component Input 720 480i 4 3 720 480i 16 9 720 480p 4 3 720 480p 16 9 720 576i 4 3 720 576i 16 9 720 576p 4 3 720 576p 16 9 1280 720p 1920 1080i DVD Menu Type DVD Feature Colo...

Page 14: ...x Playback Digital Out Dolby Digital MPEG PCM DTS Down Mix Out Dolby Digital DTS Audio DAC Resume Stop Repeat Play Back Program Play Back Random Play Back Search Speed 4 step x2 8 50 120 Slow Speed 4 step 1 7 1 6 1 4 1 2 Zoom 3 step x1 33 1 5 2 DVD CD DA CD R RW DVD R RW Video Format Only Yes Yes Yes Yes No Yes Yes No Yes Yes 192kHz 24bit Yes Yes Yes Yes Yes Yes ...

Page 15: ...row Fig 1 1 1 6 BACK PLATE B AND BACK PLATE C AND MAIN PCB Refer to Fig 1 6 1 2 3 4 5 Remove the 8 screws Remove the Back plate B and Back plate C in the direction of arrow A Disconnect the following connector AH302208 AH302209 AH302212 AH302213 AH302214 Remove the 4 screws Remove the Main PCB in the direction of arrow B Fig 1 6 Fig 1 4 1 A B 1 2 2 3 C 1 2 3 1 2 1 5 DECODER PCB AND DVD ASS Y Refer...

Page 16: ... 4 screws Remove the LCD Cover in the direction of arrow B Disconnect the connector between LCD panel and HV PCB Remove the LCD Panel in the direction of arrow C Remove the 4 screws Remove the HV PCB in the direction of arrow D Fig 1 8 1 B 1 1 1 1 2 3 C 2 2 2 3 2 3 3 3 2 2 2 2 4 B A D 2 3 3 4 5 6 7 Remove the Power PCB in the direction of arrow A Remove the 5 screws Remove the Back Plate A in the ...

Page 17: ...ring the IC leads completely Fig 2 2 Blower type IC desoldering machine IC 3 When IC starts moving back and forth easily after desoldering completely pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine Refer to Fig 2 3 NOTE Some ICs on the PCB are affixed with glue so be careful not to break or damage the foil of each IC leads or solder lands un...

Page 18: ...eld Wire Refer to Fig 2 7 NOTE Do not absorb the solder to excess Fig 2 7 Soldering Iron IC Braided Shield Wire 4 When bridge soldering between terminals and or the soldering amount are not enough resolder using a Thin tip Soldering Iron Refer to Fig 2 8 Fig 2 8 Thin tip Soldering Iron IC 5 Finally confirm the soldering status on four sides of the IC using a magnifying glass Confirm that no abnorm...

Page 19: ...on Up Date error will happen and can not be done with the Up Date of Up Date Disc After the Up Date Logo screen will appear Unplug the AC cord then plug it in CHECK FOR THE FIRMWARE VERSION Turn on the power and set the DVD mode DVD with stade of NO disc under disc open state Press Display button on the remocon Firmware version will be displayed on the top of the screen Turn off the power RE WRITE...

Page 20: ...on Press up down left right menu enter on the remote control in turn to enter Factory mode as FIG 1 WHEN REPLACING EEPROM MEMORY IC CONFIRMATION OF INITIAL DATA Factory Menu SOURCE SELECTION ADC ADJ COLORTEMP ADJ USERDATA RESET EEPROM RESET ExtMcu Version T24 60 00 01 20 06 SW Version V1 0 Jan 23 2007 DTV Factory Menu SOURCE SELECTION ADC ADJ COLORTEMP ADJ USERDATA RESET EEPROM RESET ExtMcu Versio...

Page 21: ...ixed values of each of the adjustment items are set correctly referring below DTV VIDEO1 VIDEO2 DVD COLOR STREAM HD HDMI PC Confirmation of Fixed Value Step No Fig 1 1 Fig 1 2 DTV VIDEO1 VIDEO2 DVD Color Stream HD HDMI PC COOL R 022 G 023 B 036 MEDIUM R 028 G 028 B 036 WARM R 031 G 028 B 036 FUNCTION Step No Factory Menu SOURCE SELECTION ADC ADJ COLORTEMP ADJ USERDATA RESET EEPROM RESET ExtMcu Ver...

Page 22: ...items Press right to ADC ADJ automatic adjustment Fig 2 1 Fig 2 2 ADC ADJ R Gain G Gain B Gain R Offset G Offset B Offset AUTO 035 053 036 036 036 036 Press enter on the remote control to finish the ADC ADJ automatic adjustment Press EXIT on the remote control to exit Factory mode Factory Menu SOURCE SELECTION ADC ADJ COLORTEMP ADJ USERDATA RESET EEPROM RESET ExtMcu Version T24 60 00 01 20 06 SW V...

Page 23: ... CPU UPDATE DECODER PCB DVD MECHA AH302218 D 4 D 3 LCD PANEL HV POWER PCB J2 J11 J10 CON10 CON2 CON12 CON16 CON15 CON11 J8 CON6 CON1 JP1001 JP3002 CON9 CON8 CON7 U38 JP3001 U3001 JN3001 JP3003 XP3001 JP2001 CZ3 CZ2 CZ1 POWER PCB XS1 XS5 XS3 XS2 XS7 AH302212 AH302217 AH302209 AH302215 AH302207 AH302213 AH302214 AH302208 AH302210 AH302211 FOR SERVICE ONLY ...

Page 24: ... and eliminate short or open situation Yes Yes Yes Yes No No No No Check if power connection isnormal Replace power connection Check if fuse F1 is normal Check if voltage of J8 pin4 is normal Replace Main PCB Replace REMOCON PCB Check if voltage of Power PCB CZ2 CZ3 is normal ...

Page 25: ...TROUBLESHOOTING GUIDE E 2 No work LED is red Replace U1 U3 U6 U25 U27 Yes Yes No No Check if REMOCON PCB is normal Replace REMOCON PCB Replace Main PCB Check if voltage of U1 U3 U6 U25 U27 is normal ...

Page 26: ...e Yes Yes No No Check if backlight is normal Check the power and control signal of CON2 in main PCB is normal Check if voltage of HV power PCB T1 T2 is normal Replace HV power PCB No Replace Main PCB Yes Replace Main PCB Yes Yes No No Check if connector of CON10 is normal Replace CON10 Replace LCD panel Check if signal of LVDS is normal ...

Page 27: ... of XP3001 is normal Replace connect wire No Check if SVIDEO CVBS signal of U22 pin25 26 29 30 is normal No HDMI Replace connection Yes Yes Yes No Check if signal of CON9 is normal Replace U12 or U13 No Check if voltage of U13 pin8 is normal Replace U9 Yes No Replace Main PCB Check if signal of U9 pin 124 125 is normal ...

Page 28: ...TROUBLESHOOTING GUIDE E 5 No DVD picture Replace Main PCB Yes Yes No Replace DVD MECHA Check if voltage of J11 pin 12 is normal Replace Decoder PCB No Check if signal of CON15 pin 5 7 9 is normal ...

Page 29: ...es Yes No Replace Main PCB Check if signal of CON7 pin 1 2 3 12 13 15 is normal Replace U8 No Check if volatge of U8 pin 8 is normal Yes Replace Main PCB No Check if signal of U22 pin 7 8 33 34 55 56 is normal Yes Replace U22 No Check if signal of LVDS is normal ...

Page 30: ...n Yes No Replace Speaker Check if signal of CON16 pin 9 11 13 15 is normal Replace U22 No Check if signal of U22 pin 79 80 is normal Yes Replace U32 No Check if signal of U32 pin 1 7 is normal Yes Replace U31 No Check if signal of U31 pin 1 2 14 15 is normal Yes ...

Page 31: ... No PC HDMI audio Replace U22 Yes No Replace Speaker Check if signal of U22 pin 70 71 75 76 is normal Replace U36 No Check if signal of U36 pin 1 7 is normal Yes Replace U31 No Check if signal of U31 pin 1 2 14 15 is normal Yes ...

Page 32: ...PCB Yes No Replace Speaker Check if signal of CON15 pin 1 3 is normal Replace U22 No Check if signal of U22 pin 79 80 is normal Yes Replace U36 No Check if signal of U36 pin 1 7 is normal Yes Replace U31 No Check if signal of U31 pin 1 2 14 15 is normal Yes ...

Page 33: ... K 28 M 29 M N 29 M L 29 I A B B B A 12 B B B 15 A A A 16 A 12 B 15 B 17 18 A B 19 20 13 14 B H 48 47 53 E 22 46 51 52 E 22 21 B B A 21 23 24 49 A A A 44 E A A E 45 R E A 43 E A R E A 50 E H H F 40 41 42 E E H E A C R G F E E A 33 D 45 A C 32 34 F G G F E E E 37 36 39 S S 38 35 E 31 E I 8 7 11 B 9 10 B B E 54 55 ...

Page 34: ...68 eb21202 FELT SHEET B 2 22 AH302169 eb21201 FELT SHEET A 2 23 AH302170 eb21180 FRONT PANEL 1 24 AH301863 eb44544 BADGE BRAND 1 25 AH302171 eb45142 CUSHION B 2 26 AH302172 eb21178p STAND 1 27 AH301856 eb44536 HINGE ASS Y 1 28 AH302173 eb21197 ANGLE STAND 1 29 AH302174 eb43028 LEG CUSHION 4 30 AH301858 eb44538 CUSHION A 1 31 AH302175 eb21196p HANDLE BLACKET 1 32 AH302176 eb21175 BACK PLATE C 1 33 ...

Page 35: ...KAGE BOTTOM LEFT 1 62 AH302206 es5975 PACKAGE BOTTOM RIGHT 1 AH302207 es31426b DVT1921 DGM7 LVDS WIRE MAIN CON10 LCD PANEL 1 AH302208 es31429 REMOCON PCB CONNECT WIRE JP1001 1 AH302209 es31430 OPERATION PCB CONNECT WIRE JP2001 MAIN J10 1 AH302210 es31431 DVD SIGNAL CONNECT WIRE MAIN CON15 DECODER XS7 1 AH302211 es31432 DVD CONTROL SIGNAL CONNECT WIRE MAIN J11 DECODER XS5 1 AH302212 es31433 FFC CC ...

Page 36: ...AH302041 ea26069 SCREW M3 8 PAN 1 Q AH301878 ea2730 SCREW ST3 6 1 R AH302223 ea26068 SCREW M3 5 BLACK 4 S AH302224 ea2992 SCREW M3 8 ARGENT 6 SAFETY PRECAUTION The parts identified by mark are critical for safety Replace only with part number specified The mounting position of replacement is to be identical with originals The substitute replacement parts which do not have the same safety character...

Page 37: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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