LG CED-8083B Service Manual page 19

LD CHECK (Not Recorded)
Execute 'E. LD On' of 'How to
PN401 Pin 32(ENAB) = 'H'?
PN401 Pin 31(W/XR) = 'H'?
Check the P/U connector and
60
F
use Test Tool(Dragon)':
'VWDC-1 Loop'
YES
YES
IC401 Pin 5(WREF) :
0.5+/-0.2V?
YES
IC401 Pin 16(FPDO) :
2.9+/-0.3V?
YES
PN401 Pin 27 (VWDC1) :
1.2+/-0.8V?
YES
replace the P/U.
NO
•
Check the connector of IC601 pin 20.
•
Check and replace the IC601(CPLD).
NO
•
Check the connection of IC601 pin 18,29 and 34.
•
Check and replace the IC601(CPLD).
NO
•
Check the connection of IC409 pin 4.
•
Check and replace the IC409(DAC).
NO
•
Check the connection of PN401 pin 19.
•
Check and replace the PN401, PICK UP.
•
Check the connection of IC401 pin 10.
NO
•
Check the connection of IC409 pin 13.
•
Check and replace the IC401, IC409.
Execute 'D. LD Inspection' of 'How to
use Test Tool(Dragon)'
YES
VWDC NG?
NO
Normal