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Copyrightⓒ2008 LG Electronics. Inc. All right reserved
17
LGE Internal Use Only
Only for training and service purposes
TROUBLE SHOOTING GUIDE
1. No Power
- Check the condition of the SMPS input and power cable connection.
-
Check the system clock (16MHZ) and the reset terminal of CPU.
Change SMPS B/D
Check 5VSTB of L570
Fail
Pass
No Power
(LED indicator off)
Check the signal(Stby_en) of Q569
Re-soldering or Change the
defect part(U1, Y1,Q569)
Fail
Pass
Check the signal(LED_B,R) of JP566
Re-soldering or Change the
defect part(U1, Y1)
Fail
Pass
Check IR & LED B/D Assy
Change IR & LED B/D Assy
Fail
Check JP566, JP567 Connection
Pass
Check PANEL_ERROR
Pass
Check Panel B/D or SMPS
Fail
Содержание 50PG6300
Страница 73: ...Nov 2008 Printed in Korea P NO MFL51231502 ...