Read Sony TCS-30D Service Manual online
– 9 –
SECTION 5
ELECTRICAL ADJUSTMENTS
Tape Speed Adjustment
Setting:
Procedure:
– Normal –
1. Set the
– Normal –
1. Set the
[REC TIME]
switch (S601) to
[NORMAL]
position.
2. Playback WS-48A (tape center) in the FWD state.
3. Adjust RV601 so that the frequency counter reading becomes
3. Adjust RV601 so that the frequency counter reading becomes
3,000 Hz.
Specified Value: 2,970 to 3,030 Hz
4. Check that deflection of the frequency counter reading between
the beginning and the end of tape is within 1.5% (approx. 45
Hz).
Hz).
– Double (1/2 SPEED) –
1. Set the
1. Set the
[REC TIME]
switch (S601) to
[DOUBLE]
position.
2. Playback WS-48A (tape center) in the FWD state.
3. Adjust RV602 so that the frequency counter reading becomes
3. Adjust RV602 so that the frequency counter reading becomes
1,500 Hz.
Specified Value: 1,485 to 1,515 Hz
Adjustment Location:
PRECAUTION
1. Specified voltage
: 2.5 V (DC)
2. Setting
SPEED CONTROL dial
: center click
0 dB=0.775 V
Test Tape
Record/Playback Head Azimuth Adjustment
Setting:
Mode: playback (normal speed)
Mode: playback (normal speed)
Procedure:
1. Turn the adjustment screw to obtain the maximum reading on
1. Turn the adjustment screw to obtain the maximum reading on
level meter.
Note:
Several peaks may appear, but take the maximum.
2. After the adjustment, lock the adjustment screw with suitable
locking compound.
Adjustment Location:
Type
Signal
Used for
P-4-A063
6.3 kHz, –10 dB
Head Azimuth Adjustment
WS-48A
3 kHz, 0 dB
Tape Speed Adjustment
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
US: 32
Ω
Except US: 16
Ω
set
i
jack (J301)
+
–
–
adjustment screw
Press the N
button.
button.
frequency counter
test tape
WS-48A
(3 kHz, 0 dB)
WS-48A
(3 kHz, 0 dB)
set
i
jack (J301)
–
+
US: 32
Ω
Except US: 16
Ω
RV602
Tape Speed Adjustment
(Double)
J301
RV601
Tape Speed Adjustment
(Normal)
J302
– MAIN BOARD (Conductor Side) –
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