No Motor Rotation; Motor Coil Check Method; No Speed Acceleration - Sony WM-10 Troubleshooting Manual

WM-10/WM-20 WM-1
* No Motor Rotation
* Motor Coil Check Method
* Fast, Stow Speed
* No Speed Acceleration
* Servo Board f A) (B| Simple Check Method
* No Motor Rotation
• Starting Circuit Operation
Q6 05
Goes on by motor reverse
voltage at (lie same time as
motor rotation.
_d
d
YES
Tape inns
Staw speed,
Rotates inti
* Feedba
Motet can
is appioxi
pins © „
Tape runs a
Tends to pi
Slightly fall
Ro Laticxn dr
* Motor Coil Check Method
A. Hail element between (JJ) - @ "i normai value
between ©-(g) j
240
£
2
-
550£2
b. coil check between ® - © \ normal vlaue
between (f) _ (g) j approx. 1J2
-
9
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