Panasonic VDR-M30PP Service Manual page 49

Interpreting the trouble diagnosis table:
1) Letters in brackets [ ] in "check points" columns show the name and side of circuit board.
Example: [MAN-A] shows that the check point exists on side A of MAN circuit board.
2) If there are multiple check points for one symptom, check the items from the top down.
Information:
Use the adapter/charger to power VDR-M30 for trouble diagnosis.
Prohibition
1) The LCD circuit board has a high-voltage section: When troubleshooting it, take great care to
prevent electric shock by wearing gloves, etc.
2) During troubleshooting, never look directly into the objective lens in optical pickup block, and
take great care that the reflected laser beam does not enter your eye.
Symptom
No power
Error message "DISC
ACCESS" appears and
disc is not recognized.
Table 4-7-1 Trouble Diagnosis Table (1/3)
Service
Check points
position
(A) F0501 [MAN-B]
F0502 [MAN-B]
F0503 [MAN-B]
F0504 [MAN-B]
TL0503 [MAN-A]
IC1503-53 to 56
[MAN-B] (Do not
solder lead wire.)
TL0510 [MAN-A]
TL0511 [MAN-A]
TL0512 [MAN-A]
TL0513 [MAN-A]
TL0515 [MAN-A]
TL0517 [MAN-B]
TL0518 [MAN-B]
----- -----
Detail of check
Continuity check
Hi when power turns
on (REG ON)
Approx. 3V DC
(SYS3V)
Approx. 1.5V DC
(C1.6V)
Approx. 3.2V DC
(CAM3V)
Approx. 4.8V DC
(CAM5V)
Approx. 3V DC (D3V)
Approx. 5V DC (D5V)
Approx. 2.5V DC
(D2.5V)
Approx. 15V DC
(C15V)
Error message does
not disappear and
POWER switch does
not work.
Error message does
not disappear after 3
seconds or more.
Troubleshooting due to
check results
NG: Replace fuse.
NG: Replace MAN circuit
board.
Check connections of DRF
circuit board.
Replace disc drive unit.