Read LG 32LP1D / 37LP1D-UA / 42LP1D-UA (CHASSIS:AL-04DA) Service Manual online
- 14 -
TROUBLESHOOTING
No power
O.K
Connect the connectors
Replace Power_board
Replace the Power_board
Replace D_board
Push the POWER ON key
Check
the condition of power
Related connectors.
Measure the
stand_by voltage :
D_board P1401 5 th pin
ST_ 6V
Measure D_board
Standby voltage:
D_board P1401 8th
6V
Dose the set turn
on normally?
Check
Power_board
analog ref. voltage
A_board P801
1th pin 24V
Measure Power
On signal level :
A_board P801 2nd
pin > 5V
Measure D_board
supply voltage :
P1401 1th pin 3V 8th
6V, 10th 12V
FAIL
FAIL
FAIL
FAIL
FAIL
FAIL
FAIL
PASS
PASS
PASS
PASS
PASS
Replace Power board
Check the
power board
Digital ref. voltage :
Power board CN804
1th pin 24V
Click on the first or last page to see other 32LP1D / 37LP1D-UA / 42LP1D-UA (CHASSIS:AL-04DA) service manuals if exist.