Teac A-3300SX - Trouble-Shooting

10. TROUBLE-SHOOTING
NOTE:
The
following
guide
lists
specific
difficulties
that
could
occur
in
the
A-3300SX
or
A-
2300SX.
Possible
causes
are
listed
for
each
malfunction.
Visually
inspect
the
unit
for
any
damage
such
as
broken
or
burned
components
or
wiring,
loose
connections,
etc.
Malfunction
Capstan fails to turn
Pinch roller fails to contact
capstan in play mode
Right reel motor does not rotate
in play mode.
Left reel motor does not rotate
in play mode.
Both motors fail to operate.
Recorder does not operate in
PLAY (P)
Playback noise or hum
Noise or hum during record
Wow and flutter
Incorrect tape speed
Brakes do not release
Fast forward or rewind mode in-
operative
No record and/or erase
No playback
22
Possible Source of Trouble
Belt off or slipping, line fuse, safety switch
(SW-2), speed select switch (SW-12), phase
advance capacitor (C-5), rewind relay
(K-3).
Operation relay (K-1), Start relay (K-7),
rewind relay (K-3), STOP micro-switch (S-
4), PLAY ( » ) micro-switch (S-7), capstan
solenoid.
Reel motor (right), brake solenoid, rewind
relay (K-3), resistor (R-1)
Reel motor (left), brake solenoid, rewind
relay (K-3), resistor (R-2)
Operating relay (K-1), start relay (K-7)
Remote control jumper plug missing or
loose, STOP micro-switch (S-4), brake
solenoid, resistor (R-3), rewind relay (K-
3), phase advance capacitor (C-5)
Faulty connections, faulty playback head,
faulty amplifier.
Magnetized head, faulty connections, MIC
level set to maximum, faulty record am-
plifier, record relay (K-401)
Defective tape, dirty or defective pinch
roller and pressure,oily or defective belt,
reel motor tension.
Drive belt in wrong position. Incorrect
pinch roller pressure.
Defective brake solenoid
Rewind relay (K-3)
Record head dirty, erase head dirty, oper-
ate relay (K-1), record relay (K-401), REC
micro-switch (S-8), record amplifier, bias
OSC, record head, erase head.
Playback head defective or dirty, amplifier-
to-deck connections, OUTPUT switch (SW-
500), playback amplifiers
Corrective Procedure
Repair or replace the defective components.
Refer to schematic diagram and repair or
replace the defective components.
Replace the defective components.
Replace the defective components.
Replace the defective components.
Normal DC resistance of the brake solenoid
is 1.3K ohms. Refer to schematic diagram
and repair or replace the defective com-
ponents.
Repair or replace.defective components.
Demagnetize and clean head, repair or re-
place defective components, check MIC VR.
Clean or replace defective components.
Adjust motor tension.
Reposition drive belt.
Adjust pinch roller pressure.
The D.C. resistance of the brake solenoid
should be 1.6K ohms.
Replace solenoid.
Refer to schematic diagram and repair or re-
place the defective components.
Refer to schematic diagram and repair or re-
place the defective components.
Refer to playback amplifier voltage chart.