Teac A-3340S - Page 36

15-1.
TROUBLESHOOTING
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.
A-3340S does not
Operate in PLAY
(Be)
Playback noise or
hum
Noise or hum
during record
Wow and flutter
POSSIBLE SOURCE OF TROUBLE
Belt off or slipping, line
fuse, safety switch(SW-2),
speed select switch(SW-12),
phase advance capacitor (C-5)
Operation relay(K-1),
Start relay(K-7), Ql, STOP
micro-switch(S-4), PLAY (Be )
micro-switch(S-7), capstan
solenoid
Reel motor(right), brake
solenoid, operation relay(K-6),
resistor (R-1)
Reel motor(left), brake
solenoid,
operation
relay(K-6),
resistor (R-2)
Safety switch(SW-2), operation
relay (K-1,K-6)
Remote control jumper plug
missing or loose, STOP
micro switch(S-4), brake
solenoid, pause switch(S-9),
operation
relay(K-1,K-6),
phase
advance capacitor (C-5), (C-4)
Faulty
connections,
SIMUL
switch
(S-701),
faulty
playback
head,
faulty
amplifier
Magnetized head, faulty
connections, MIC level set
to maximum, faulty record
amplifier, record relay
(K501,K502,K601 ,K602)
Defective tape, dirty or
defective pinch roller and
pressure
oily
or
defective
belt, reel motor tension
CORRECTIVE PROCEDURE —
Repair or replace the
defective components.
Refer to schematic diagram
and repair or 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 components.
Repair to replace defective
components.
Demagnetize and clean head,
repair or replace defective
components,
check
MIC
VR.
Clean or replace defective
components. Adjust motor
tension