Read LG 26LG300C (CHASSIS:LD85A) Service Manual online
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Check the RS-232C Pin7(5V_OUT).
Check the RS232C Pin(12V_OUT).
Check the RS232C Pin(12V_OUT).
Set “YES” on SVC menu.
No
Re-solder or replace the defect part.
No
Re-solder or replace the defect part.
No
Yes
Is the 5V or 12V Out
“YES” on SVC menu?
Yes
Check the
on/off control of IC100
R160:5V
R142:12V
No
Check the operation
of Q1205.
12. Don’t operate 5V out or 12V out
Check the RS-232C Pin4.
Replace the Preamp of IR ass’y.
No
Re-solder or replace the defect part.
No
Yes
Check the IR waveform
of L403.
No
Check the IR waveform
of IC1304_Pin3.
13. Don’t operate IR out
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