LG CED-8081B Service Manual page 18

LD CHECK (Not Read)
E
Execute 'E. LD On' of 'How to
use Test Tool (Dragon) : 'VRDC
Loop [Read Mode]'
PN401 Pin 32(ENBL)=H?
YES
IC401 Pin 10(RREF):
CED-8081B:3.1+/-0.2V?
YES
IC401 Pin 4(FPDO):
2.4+/-0.3V?
YES
PN401 Pin 25(VRDC) :
CED-8081B:0.9 + 0.5V?
YES
Check the P/U connector and then
replace the P/U.
NO
•
Check the connection of IC601 pin 20.
•
Check and replace the IC601(Asic).
•
Check the connection of IC409 Pin 18,
NO
IC410 Pin 1, 2, 3.
•
Check and replace the IC409(DAC).
NO
•
Check the connection of PN401 pin 19.
•
Check and replace the PN401, PICK UP.
NO
•
Check the connection of IC401 pin 12.
•
Check and replace the IC401.
Execute 'D. LD Inspection' of 'How to
use Test Tool(Dragon)'
YES
VRDC NG?
NO
Normal
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