Read Sony HCD-GPX5G Service Manual online
HCD-GPX5G/GPX7G/GPX8G
6
D-AMP
Mount Diagnosis Flow (2/2)
END
Checks OUT
T
erminal 5V output of REG IC1414 or
,
Checks GND and OUT
T
erminal with
Tester
.
Is it shorted out?
Assembles into the unit again then ,checks
whether there is the audio output from
D-AMP
Board.
Checks circumference circuit of REG IC1414.
If there are no problems, exchanges IC1414.
Checks circumference circuit of REG IC1415.
If there are no problems, exchanges IC1415.
Replaces
D-AMP
Board
A
B
Yes
Yes
Yes
Yes
No
No
No
No
Checks OUT
T
erminal -5V output of REG IC1415 or ,
Checks GND and OUT
T
erminal with
Tester
.
Is it shorted out?
Leave D-AMP
Mount to a state of it only and ,
checks Power
Audio Driver(MOS FET) with
Tester
.
Is it shorted out?
（
Refer to Page 7.
）
Replaces
D-AMP
Board
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