Sony DNW-A100 Maintenance Manual page 248

5-9-7. Reel Table Rotation Sensor Position Adjustment
2. Connect the Oscilloscope
CH-1: TP1/SE-341 board (S-FG signal)
CH-2: TP2/SE-341 board (T-FG signal)
3. Check the Reel FG Output Level
(1) Turn the power on.
(2) Put the EJECT mode by putting the EJECT
button.
(3) Insert the cassette tape.
(4) Put the unit into the PLAY mode, then check
the outputs of CH-1 and CH-2 satisfy the
specification 2.
(5) Eject the cassette tape by putting the EJECT
button.
(6) Put the unit into the STOP mode in a state of
without the cassette tape in the unit by
putting the STOP button.
(7) In the step (6), check that the outputs of CH-1
and CH-2 satify specifications 3 and 4.
5-64
< SE-341 board, A side >
A
TP1 TP2 GND
B
C
OK
Spec. 2 : No distortion is in the waveform.
NG
(Distortion is in the waveform.)
TP1 or TP2
Output
Spec. 3 : A > 30 mVp-p
A
Spec. 4 : > 0.8
B
Check the Reel FG Output Level
A B
DNW-A100/A50/A45
DNW-A100P/A50P/A45P