TM 32-5835-005-14 & P
Section
III.
TROUBLESHOOTING
8-7. Sequential Troubleshooting Pro-
8-6. Apparent Malfunctions.
cedures.
If an apparent malfunction is observed,
a. If a malfunction is encountered
identify the trouble symptom (see Table
which cannot be identified or remedied,
8-3) and using the information supplied,
proceed with the sequential trouble-
further localize the malfunction. If
shooting procedure below. Sequence of
the trouble symptom is not readily
performance shall be in the sequence
identifiable, proceed with sequential
given.
troubleshooting procedure paragraph
8-7.
General
Support
Troubleshooting
Check
Item
Probable Trouble
Corrective
Meter Reading
Trouble Symptom
No.
Measures
Replace.
Open motor.
A1A5 pin "S"
1
Capstan Motor not
reads 13.0 VDC.
turning.
Replace.
Defective photo-
2.
A1A5 pin "s"
Capstan motor run-
reads 13.0 VDC.
transistor capstan
ning at highest
speed.
Replace/
Shorted motor/wir-
A1A5 pin "S"
Capstan motor not
3.
ing.
check wiring.
reads less than
turning.
2.0 VDC.
Check A1A5
for damage.
Open heads/cable
Replace/check
Noisy amplifier
4.
or plug.
wiring.
output, no signal.
Test.
5.
Low bias level.
Playback signal is
distorted.
Adjust.
Carriage align-
No playback sig-
6.
ment wrong.
nals in SEARCH.
Clear ob-
Carriage solenoid
Drops out of REP-
7.
struction.
not pulling in
RODUCE.
due to obstruction.
Replace.
Defective photo-
8.
Drops out of REP-
transistor tape
RODUCE, FAST FWD,
motion sense.
and REWIND.
Replace/
Defective brake
Reels cannot turn
9.
Adjust.
solenoid/mal-
in any mode.
adjustment.
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