37
DW3G
TROUBLE-SHOOTING FLOW CHARTS
LCD Panel Module troubleshooting.
No picture, no color or dark
Is Backlight
Unit lighted?
Yes
No
No
Are voltages
at Pin1
〜
5 of CN201andCN202
+24V?
No
Yes
Is there voltage
at Pin6 of CN203?
No
Check Inverter PWB
Check Panel Module except Inverter PWB
Check Main-Digital board
Check Power Supply Unit
Check Main-Digital board
No
Yes
Yes
No
Yes
Yes
Is there voltage
at Pin7 of CN101?
Are voltages
at Pin1
〜
2 of CN203
+12V?
Is voltage
at Pin5 of CN203
High level?
No
No
Yes
Yes
Is there voltage
at Pin6 of CN101?
Are voltages
at Pin
n 1~ 3 of CN204
+5.6V?
Summary of Contents for UltraVision L42S601
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Page 81: ...79 TERMINAL PWB PRINTED CIRCUIT BOARDS DW3 G TERMINAL PWB p n JP55126 COMPONENT SIDE DW3G ...
Page 82: ...80 TERMINAL PWB PRINTED CIRCUIT BOARDS DW3 G TERMINAL PWB p n JP55126 SOLDER SIDE DW3G ...
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