Teac A-4300SX - Trouble-Shooting-1; Fuse burns out (blows) when power applied; Capstan motor fails to rotate when Tension Arm is raised; Wow-Flutter excessive (irregular tape movement)

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MECHANICAL
9. TROUBLE-SHOOTING-1
NOTE: The following guide lists specific difficulties that could occur in the A4300SX.
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
POSSIBLE
SOURCE
OF
TROUBLE
|
Fuse burns out (blows) when power applied ————+» Faulty C6, D3 or D4
Capstan motor fails to rotate
when Tension Arm is ssi aca Rt SW2 or motor defective
Drive belt off or slipping
Transport inoperative in Forward
Playback
or
Fast
Forward
|
EEE
Ss
Remote
Control
dummy
plug
missing
or
loose
Faulty
K4
or
associated
parts
Either reel motor inoperative in playback but
OK in Fast Forward Defective tap on wirewound Resistor
Shorted motor capacitor or wiring
Associated circuit parts
Both reel motors operate with high torque
in Fast Forward mode ——__—————--_ Defective CR16, CR17
Excessive pene OO ae eee Head alignment improper
Faulty K8 or associated parts
Counter Repeat operation faulty 1» Defective Counter SW-10 ro SW-11, K3, K7
Auto Reverse sensing inoperative-———________» Faulty K6, QS, Q6 or associated parts
Reverse mode inoperative ————__-————_——__» Faulty K3, K5 or associated parts
Wow-Flutter excessive
(irregular tape movement) Improper pinch roller pressure
os Oily or defective belt
Back tension too high
Pinch Roller fails to engage ick Ca Faulty solenoid
Defective Q3, Q4, K8 or associated parts