LG GCE-8240B Service Manual page 64

K
Execute 'E.ALPC Test For AS' of
'How to use Test Tool(Dragon)' :
'CD-RW Rec Mode'
IC301 Pin 7 (WR/RE) = 'H'?
YES
IC205 Pin5 (WGATE) = 'H'?
YES
Are IC201
pin 183(EFM1), pin 184(EFM2),
IC401 pin 34, pin 33, IC201 pin 185
pulse signal?
YES
Are IC401
pin31(WFPDSH), 32(RFPDSH),
33(WBLSH), 34(M/S PDSH),
pulse signals?
YES
Are PN401
pin 31 (WE2), 30(WE1),
19(FPDO) pulse signals?
YES
Dragon : Execute LD 'Stop'
Normal
70
NO
•
Check the connection of IC301 pin 5.
•
Check and replace the IC301.
NO
•
Check the connection of IC201 pin 166.
•
Check and replace the IC301.
NO
•
Check the connection lines of IC201 and IC401.
•
Check and replace the IC201.
•
WFPDSH : check the connection of IC201 pin188.
NO
•
RFPDSH : check the connection of IC201 pin180.
•
WBLSH : check the connection of IC201 pin182.
•
M/S PDSH : check the connection of IC201 pin181
•
Check and replace the IC201.
•
Check the connection lines of IC201 pin
NO
183, 184.
•
Check and replace the IC201.
Dragon : Execute 'STOP'
FPDO