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SERVICE MANUAL
15" COLOR LCD TELEVISION

LCD-A1504

20" COLOR LCD TELEVISION

LCD-A2004

15/20 COLOR LCD TELEVISION

LCD-A1504 LCD-A2004

TABLE OF CONTENTS
Specifications ........................................................ Important Safety Precautions................................ Standard Notes for Servicing ................................ Cabinet Disassembly Instructions ......................... How to Initialize the LCD Television...................... Electrical Adjustment Instructions ......................... Block Diagrams ..................................................... Schematic Diagrams / CBA's and Test Points ...... 1-1 2-1 3-1 4-1 5-1 6-1 7-1 8-1 Schematic Diagrams.............................................. 8-3 CBA Views and Test Points................................. 8-12 Waveforms............................................................. 9-1 Wiring Diagram .................................................... 10-1 Cabinet Exploded View........................................ 11-1 Packing Exploded View ....................................... 11-3 Mechanical Parts List........................................... 12-1 Electrical Parts List .............................................. 13-1

The LCD panel is manufactured to provide many years of useful life. Occasionally a few non active pixels may appear as a tiny spec of color. This is not to be considered a defect in the LCD screen.

SPECIFICATIONS

ANT. Input ------------------- 80 dBµV, Video: PAL 87.5%, Audio: 30 kHz dev (1 kHz Sin) Test Input Signal----------- 400Hz 30% modulation Description 1. Intermediate Freq. 2. Color Killer Sens. 3. AFT Pull In Range (10mV input) Condition Picture Sound CH-3 ­ Unit MHz MHz dBµV MHz Nominal 45.75 41.25 20 ±1.6 Limit 23 ±0.7


Description 1. Number of Pixels 2. Brightness 3. Response Time 4. Support Color 5. Viewing Angle Horizontal Vertical Condition Horizontal Vertical Unit pixels pixels cd/m2 msec ° ° Nominal 640 x 3 480 450 16 16mil.(8bit) -85 to 85 -85 to 70 Limit -