LG GCE-8240B Service Manual page 60

LD CHECK (Not Recorded)
Execute 'E.ALPC Test For As' of
'How to use Test Tool(Dragon)':
PN401 Pin 32(ENBL) = 'H'?
Check the P/U connector and
66
F
'CW Power Test'
YES
PN401 Pin 30
(WE1) = 'H'?
YES
IC401 Pin 92(WREF) :
0.8+/-0.2V?
YES
PN401 Pin 22(FVREF) :
3.0+/-0.3V?
PN401 Pin 19(FPDO):
2.5+/-0.5V?
YES
PN401 Pin 26 (VWDC1) :
0.7+/-0.2V?
YES
replace the P/U.
NO
•
Check the connection of IC301 pin 12.
•
Check and replace the IC301(MB90F482).
NO
•
Check the connection of IC201 pin 183, 184.
•
Check and replace the IC201 (OTI-9797).
NO
•
Check the connection of IC401 pin 25.
•
Check and replace the IC401(CXA2638R).
•
Check the connection of PN401 pin 19
NO
(FPDO), PN401 pin 22(FVREF).
•
Check and replace the PN401, PICK UP.
•
Check and replace the IC403.
NO
•
Check the connection of IC401 pin 93.
•
Check and replace the IC401.
Execute 'D. Laser Inspection' of 'How to
use Test Tool(Dragon)'
YES
VWDC1 NG?
NO
Normal