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Order NO.ITD0511072BE




LCD Television




<500/50 Series> TX-32LXD500 , TX-32LXD50
TX-26LXD500 , TX-26LXD50

Circuit Description with Troubleshooting
- Ver 1.50 -


This service hints is published for technicians and engineers for repair.

It gives you the information how to judge the defective board of LCD.



Please file and use this Service Hints together with the main service
manual and other publications related to models.
Power Supply - CONTENTS -
Specification
1. Specification ------------------------------ P 4
2. Circuit Board Layout ------------------------------ P 6

Circuit Description
1. Overall ------------------------------ P 8
2. Video ------------------------------ P 9
3. Audio ------------------------------ P 10
4. Global Core ------------------------------- P11
5. Digital Tuner
Trouble Shooting ------------------------------- P12
6. HDMI ------------------------------- P13
7. Power Supply ------------------------------- P14
8. Panel Interface ------------------------------- P16
Trouble Shooting
1. Self Check ------------------------------- P18
2. Power Problem ------------------------------- P19 *****This space intentionally left blank****
Protect circuit ------------------------------- P20
LED Never light ------------------------------- P22
LED Light always ------------------------------- P24
LED 1 time blink ------------------------------- P26
LED 3 times blink ------------------------------ P28
LED 5 times blink ------------------------------ P30
LED 8 times blink ------------------------------ P32
3. Video & Audio problem ---------------------------- P34

Appendix
1. Voltage chart ---------------------------P36
2. Video Switch -------------------------- P36
3. Audio Switch -------------------------- P37
4. MSP -------------------------- P37




2 3
50 Series (LCD) 1. Specification 500 Series (LCD) 1. Specification

TX-26LXD50 TX-32LXD50 TX-26LXD500 TX-32LXD500




MODEL TX-26LXD50 TX-32LXD50 MODEL TX-26LXD500 TX-32LXD500
Screen 26 inches 16:9 32 inches 16:9 Screen 26 inches 16:9 32 inches 16:9
Pixel 1366 (H) RGB x 768 (V) [Wide XGA] Pixel 1366 (H) RGB x 768 (V) [Wide XGA]
Brightness 500 cd/m 2 Brightness 500 cd/m 2
Picture




Picture
Contrast 800 : 1 Contrast 800 : 1
Viewing Angle 170 degree Viewing Angle 170 degree
Scan format 480i/p (60Hz), 576i/p (50Hz), 720p (50Hz), 1080i (50Hz) Scan format 480i/p (60Hz), 576i/p (50Hz), 720p (50/60Hz), 1080i (50/60Hz)
Video processing GC4 Video processing GC4 + G3CFS
Circuitry Advanced LCD AI / Progressive Scan Circuitry Advanced LCD AI / Progressive Scan
Other 3D color management, Sub pixel control, 3D Y/C separation, NR Other 3D color management, Sub pixel control, Multi-window, 3D Y/C separation, NR
2 Way 4 Speakers 2 Way 6 Speakers
Sound




Sound
Speaker Speaker