Panasonic TC-15LT1 Service Manual
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Panasonic TC-15LT1 Service Manual

Panasonic TC-15LT1 Service Manual

15.2” lcd tv
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Power Source
AC 100~240V, 50/60Hz
Power Consumption
Average use: 52W (Maximum current 0.9A)
Stand-by condition: 2W (at 120V), 3W (at 240V)
LCD
15.2-inch, 16:9 aspect ratio LCD panel
Screen Size
13.19" (335mm)(W) x 7.40" (188mm)(H)
Channel Capability-181
VHF-12: UHF-56: Cable-125
Sound
Speaker
Tweeter (3 x 4cm 2pcs, 8Ω), Woofer (Ø5cm, 8Ω)
Audio Output
6.5W (2.0W+2.0W+2.5W (Woofer)), 10%THD, 65Hz~20kHz
Headphones
M3(3.5 mm) Jack x 1
FEATURES
3D Y/C Digital comb Filter
®
Aero-Hammer
Woofer System (2Way 3Speaker System)
CLOSED CAPTION
Accessories Supplied
Remote control Transmitter N2QAFC000006
Lithium Battery: CR2025 x 1
TV set
DC 15V, 3.1 A max.
V-Chip
TC-15LT1
FL1 Chassis
Operating Conditions
Temperature: 41°F-95°F(5-35°C)
Humidity: 5%-90% RH (non-condensing)
Connection Terminals
Video In
VIDEO
RCA PIN Type x 1
S-VIDEO
Mini DIN 4-pin
AUDIO L-R
RCA PIN Type x 2
COMPONENT IN VIDEO
D Type Connecter
AUDIO L-R
RCA PIN Type x 2
AUDIO OUT
M3 Stereo Jack x 1
Dimensions (W x D x H)
Including TV Stand
16.26" (413mm) x 7.09" (180mm) x 12.99"(330mm)
TV Set Only
16.26" (413mm) x 2.44" (62mm) x 11.61"(295mm)
Weight (Mass)
12.35lb. (5.6kg) Net
Note:
Design and Specifications are subject to change without notice.
Weight and Dimensions shown are approximate.
© 2000 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. ITD0011013C1
15.2" LCD TV
1.0Vp-p
Y:1Vp-p(75Ω), C: 0.286Vp-p(75Ω)
1.0Vp-p
Y, P
, P
B
R
0.5Vrms
0.5Vrms
Unauthorized
copying
B05
and

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Summary of Contents for Panasonic TC-15LT1

  • Page 1 ORDER NO. ITD0011013C1 15.2” LCD TV TC-15LT1 FL1 Chassis Power Source Operating Conditions AC 100~240V, 50/60Hz Temperature: 41°F-95°F(5-35°C) Power Consumption Humidity: 5%-90% RH (non-condensing) Average use: 52W (Maximum current 0.9A) Connection Terminals Stand-by condition: 2W (at 120V), 3W (at 240V)

  • Page 2: Table Of Contents

    TC-15LT1 CONTENTS Page Page 1 Safety Precautions 7 Conductor Views 1.1. General Guidelines 7.1. A-Board 2 Prevention of Electro Static Discharge (ESD) to 7.2. DG-Board Electrostatically Sensitive (ES) Devices 7.3. B, H1, H2, K, P1 and V-Board 3 Self-check function 8 Block and Schematic Diagrams 3.1.

  • Page 3: Safety Precautions

    TC-15LT1 1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
  • Page 4 TC-15LT1 Caution Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to...

  • Page 5: Self-Check Function

    TC-15LT1 3 Self-check function 3.1. How to access 3.1.1. Access While pressing [VOL-] button on the main unit, press [SLEEP] button on the remote control unit simultaneously. 3.1.2. Exit When any button, like channel selection, is pressed on the remote control unit, the display returns to the normal screen.

  • Page 6: Chasis Board Layout

    TC-15LT1 4 Chasis Board Layout...

  • Page 7: Servicing Method

    TC-15LT1 5 Servicing method 5.1. Removing tilt base...

  • Page 8: Removing Rear Panel

    TC-15LT1 5.2. Removing rear panel 5.3. Removing speaker unit...

  • Page 9: Removing Front Panel

    TC-15LT1 5.4. Removing front panel 5.5. Removing LCD panel...

  • Page 10: Removing Main A-Pcb

    TC-15LT1 5.6. Removing main A-PCB...

  • Page 11: Removing B-Pcb (With Tuner Assembly)

    TC-15LT1 5.7. Removing B-PCB (with tuner assembly)

  • Page 12: Removing Digital Module

    TC-15LT1 5.8. Removing digital module 5.9. Removing H1-PCB and H2-PCB...

  • Page 13: Removing Pi-Pcb

    TC-15LT1 5.10. Removing PI-PCB 5.11. Removing K-PCB 5.12. Pull out the flexible cable straight to the coupler.

  • Page 14: Removing Back-Light

    TC-15LT1 5.13. Removing back-light 5.14. Main PCB servicing * Follow the procedures described below when checking voltage on rear side of the main PCB.

  • Page 15: Adjustment Method

    TC-15LT1 6 Adjustment method 6.1. Test Point Location 6.2. Service adjustment mode As shown in the table below, adjustment is required when some parts have been exchanged. 6.2.1. How to enter into service adjustment mode While pressing [VOLUME-] button of the main unit, press [DISPLAY] button of the remote control unit three times in a row (within 2 seconds).
  • Page 16 TC-15LT1 6.2.2. Screen display (Initial screen of the service adjustment mode) 6.2.3. Contents of service adjustment mode The adjustment items comprise of the following main items and sub items. The adjustment is shown as a hexadecimal number.
  • Page 17 TC-15LT1 6.2.4. How to terminate service adjustment mode Press POWER button of the remote control unit. * By switching off the power, the adjusted value is written into the nonvolatile memory.

  • Page 18: Rf Video Level Adjustment

    TC-15LT1 6.3. RF video level adjustment 6.3.1. Preparation Connect RF signal generator to antenna terminal (VHF/UHF). Video adjustment PICTURE ADJUST: NORMAL PICTURE MENU: DYNAMIC LCD AI : OFF Enter into the service adjustment mode. 6.3.2. Input signal 100% color bar signal 6.3.3.

  • Page 19: Component Input Video Level Adjustment

    TC-15LT1 6.4. Component input video level adjustment 6.4.1. Preparation Connect component signal generator to D2 terminal. * This adjustment can be performed with the component signals (Y, CB and CR) produced by DVD equipment. Video adjustment PICTURE ADJUST: NORMAL PICTURE MENU: DYNAMIC LCD AI : OFF Enter into the service adjustment mode.

  • Page 20: Video Input Sub Color Adjustment

    TC-15LT1 6.5.2. Input signal 100% color bar signal 6.5.3. Measuring equipment and connection point Oscilloscope Y GAIN: TS7(+) - TS10(-) B-Y: TS8(+) - TS10(-) R-Y: TS9(+) - TS10(-) 6.5.4. Adjustment method and value 1. Select the main adjustment and then YGAIN.

  • Page 21: Conductor Views 7.1. A-Board

    TC-15LT1 7 Conductor Views 7.1. A-Board A-BOARD (FOIL SIDE) TNPH0436AA...
  • Page 22 TC-15LT1 PARTS LOCATION PARTS LOCATION A-BOARD (FOIL SIDE) A-BOARD (COMPONENT SIDE) Q4002 TP834 TRNSISTER IC1263 Q4003 TP2300 IC804 Q1001 TRANSISTER Q4015 TP2301 IC805 Q1002 Q800 TP2302 IC806 Q1016 Q803 TP800 TP2307 IC807 Q1070 Q804 TP801 TP2323 IC808 Q1071 Q805 TP810...
  • Page 23 TC-15LT1 A-BOARD (COMPONENT SIDE) TNPH0436AA...

  • Page 24: Dg-Board

    TC-15LT1 7.2. DG-Board DG-BOARD (FOIL SIDE) DG-BOARD (COMPONENT SIDE) TXN/DG1AK01 TXN/DG1AK01...
  • Page 25 TC-15LT1 PARTS LOCATION DG-BOARD IC9007 IC9013 IC9020 Q9002 Q9010 Q9017 TP9008 IC9001 IC9008 IC9014 IC9022 Q9003 Q9011 Q9018 TP9012 IC9002 IC9009 IC9015 IC9024 Q9004 Q9012 TP9022 IC9003 IC9010 IC9017 IC9025 Q9007 Q9013 TP10 IC9005 IC9011 IC9018 TRANSISTER Q9008 Q9015 TP11...

  • Page 26: B, H1, H2, K, P1 And V-Board

    TC-15LT1 7.3. B, H1, H2, K, P1 and V-Board V-BOARD (FOIL SIDE) TNPA2117AA B-BOARD (FOIL SIDE) TNPA2116AA P1-BOARD (FOIL SIDE) TNPA2115AA H1-BOARD (FOIL SIDE) TNPA2119AA H2-BOARD (FOIL SIDE) TNPA2120AA K-BOARD (FOIL SIDE) TNPA2118AA...
  • Page 27 TC-15LT1 V-BOARD (COMPONENT SIDE) TNPA2117AA B-BOARD (COMPONENT SIDE) TNPA2116AA P1-BOARD (COMPONENT SIDE) TNPA2115AA H1-BOARD (COMPONENT SIDE) TNPA2119AA H2-BOARD (COMPONENT SIDE) TNPA2120AA K-BOARD (COMPONENT SIDE) TNPA2118AA...
  • Page 28 TC-15LT1...

  • Page 29: Block And Schematic Diagrams

    TC-15LT1 8 Block and Schematic Diagrams 8.1. Schematic Diagram Notes...

  • Page 30: Interconnection Schematic Diagrams

    TC-15LT1 8.2. Interconnection Schematic Diagrams...

  • Page 31: Power Block Diagrams

    TC-15LT1 8.3. Power Block Diagrams...
  • Page 32 TC-15LT1...

  • Page 33: Signal Block Diagrams

    TC-15LT1 8.4. Signal Block Diagrams...
  • Page 34 TC-15LT1...

  • Page 35: Dg-Board Block Diagram

    TC-15LT1 8.5. DG-Board Block Diagram...

  • Page 36: H1, H2, And A-Board (1/8) Schematic Diagrams

    TC-15LT1 8.6. H1, H2, and A-Board (1/8) Schematic Diagrams...

  • Page 37: A-Board (2/8) Schematic Diagrams

    TC-15LT1 8.7. A-Board (2/8) Schematic Diagrams...

  • Page 38: A-Board (3/8) Schematic Diagrams

    TC-15LT1 8.8. A-Board (3/8) Schematic Diagrams...

  • Page 39: B And A-Board (4/8) Schematic Diagrams

    TC-15LT1 8.9. B and A-Board (4/8) Schematic Diagrams...

  • Page 40: A-Board (5/8) Schematic Diagrams

    TC-15LT1 8.10. A-Board (5/8) Schematic Diagrams...

  • Page 41: A-Board (6/8) Schematic Diagrams

    TC-15LT1 8.11. A-Board (6/8) Schematic Diagrams...

  • Page 42: K And A-Board (7/8) Schematic Diagrams

    TC-15LT1 8.12. K and A-Board (7/8) Schematic Diagrams...

  • Page 43: And A-Board (8/8) Schematic Diagrams

    TC-15LT1 8.13. V and A-Board (8/8) Schematic Diagrams...

  • Page 44: Dg-Board (1/3) Schematic Diagrams

    TC-15LT1 8.14. DG-Board (1/3) Schematic Diagrams...

  • Page 45: Dg-Board (2/3) Schematic Diagrams

    TC-15LT1 8.15. DG-Board (2/3) Schematic Diagrams...

  • Page 46: Dg-Board (3/3) Schematic Diagrams

    TC-15LT1 8.16. DG-Board (3/3) Schematic Diagrams...

  • Page 47: P1-Board Schematic Diagrams

    TC-15LT1 8.17. P1-Board Schematic Diagrams...
  • Page 48 TC-15LT1...

  • Page 49: Parts Location & Mechanical Replacement Parts List

    TC-15LT1 9 Parts Location & Mechanical Replacement Parts List 9.1. Parts Location...

  • Page 50: Mechanical Replacement Parts List

    TC-15LT1 9.2. Mechanical Replacement Parts List              9.3. Packing Exploded View      !"#! $ $ %    &' $   () *'  $ + ,$- .*/0  ( #! "...

  • Page 51: Replacement Parts List

    TC-15LT1 10 Replacement Parts List 10.1. Replacement Parts List Notes...

  • Page 52: Electrical Replacement Parts List Notes

    TC-15LT1 10.2. Electrical Replacement Parts List Notes                         % ,.&$%*"  %%/0 "0 %-     %! ,&$ %.(   /0 .0 %-...
  • Page 53 TC-15LT1                         *) ,,-$%.) % , ) /0 *- #% ,&$%!%-  !/0 0 %- *)* ,,-$,) , ) /0 - #% ,,-$%.% , %%/ *- ,,-$%....
  • Page 54 TC-15LT1                         #%#% 4%.**++  **/0 *- /"%.** #  ,.-/%1  /1 %- %%* #  ,.*&%"  /0 "0 - #%# ,&$!%.-  !/0 .0 %- ,.-/%)1...
  • Page 55 TC-15LT1                         !) +(%!(* 1,,  , *% $*!6 ,  %%%% %* ! "%)  , %.+%% %%%* *% !$ ,  %%%% %! ! ,")  , %.+,%%...
  • Page 56 TC-15LT1                         %%0 7%%"34 $   (%%" %* .6/% ) ) , %%%# %) .6!% # , ""%#% %%!0 "%%"3    (%%" %%# %%% % .6/*#...
  • Page 57 TC-15LT1                         % ,.(,4.) % $+0.0'%5 ! ,.,/%% + "$+0 '%5 %* , 6.!  !% $+0 .0')5 ! ,.,/ ! + !"$+0 '%5 %) , 6.%  "$+0 .0')5...
  • Page 58 TC-15LT1                         %#! ,.(,4.)  + ) % $+0.0'%5 *)* ,.(,4.)  + ) "$+0.0'%5 %## ,.(,4.%) + %%"$+0.0'%5 *))0 ,.(,4.*** + **"$+0.0'%5 %% ,.(,4.% + +$+0.0'%5...
  • Page 59 TC-15LT1                         )#%%3 ,.*(,4%%% + % $+0 '5 #!3 ,.*(,4.% + "$+0.0'5 )#%)0 ,.(,4.%) + %%"$+0.0'%5 #* ,.*(,4.  +  "$+0.0'5 #*0 ,.*(,4.% + "$+0.0'5 %%0 ,.4.%...
  • Page 60 TC-15LT1             #  ,.*(,4%%% + % $+0 '5 #  ,.*(,4.% + "$+0.0'5 # * ,.*(,4%%% + % $+0 '5 # ) ,.*(,4.% + "$+0.0'5 #  ,.*(,4%%% + % $+0 '5 # 0 ,.*(,4....

  • Page 61: Dimensions

    TC-15LT1 11 Dimensions...

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