20
Symptom - 4 No picture, No sound
CHECK POINT LOCATION
VOLTAGE DATA (measurement value)
*5
1
1.3V
2
3.4V
3
3.3V
4
GND
5
2.5V
6
2.4V
1
1
66
Ch k th
Ch k
3
Check the
Disc tray Operation.
(OPEN and COLSE)
NG
OK
Check symptom -3,
afterwards check
symptom -4.
Check the Operation
and FL display.
1. DISC TOC read
2. Track No. and
playback time
NG
Check the connector
(XP135*5) voltage on
the Digital P.C.B. after
pulling a drive cable.
NG
OK
OK
and FL display.
1. DISC TOC read
2. Track No. and
playback time.
OK
NG
(XP135 5) voltage on
the Digital P.C.B. after
pulling a drive cable.
NG
Exchange the
Digital P.C.B.
Exchange the
Digital P.C.B.
Exchange the
Mechanism unit.
NG
Check the Digital P.C.B.
output terminal
waveform.
Exchange the
Digital P.C.B.
Exchange the
Digital P.C.B.
Exchange the
Mechanism unit.
No problem
Exchange the
Digital P.C.B.
OK
*5