– 8 –
SECTION 5
ELECTRICAL ADJUSTMENTS
Precaution
• Supplied voltage: 2.5 V
• Switch and control position
PAUSE switch (S105): OFF
VOL (RV101): mechanical mid
Test Tape
Record/Playback Head Azimuth Adjustment
Procedure:
Mode: playback
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:
0 dB=0.775 V
Tape Speed Adjustment
Procedure:
Mode: playback
1. Play back WS-48A (tape end part) and adjust RV601 so that
the frequency counter reading becomes 3,000 ± 15 Hz.
2. Play back WS-48A tape the beginning and the end part, check
that the frequency counter reading is within same standard of
step1.
Adjustment Location:
[MAIN BOARD] (Conductor Side)
level mete
test tape
P-4-A063
(6.3 kHz, –10 dB)
10 k
Ω
set
EAR jack
+
–
frequency
counter
Standard tape for adjusting
WS-48A
(3 kHz, 0 dB)
10 k
Ω
EAR jack
set
+
–
Type Signal Used for
P-4-A063 6.3 kHz, –10 dB head azimuth adjustment
WS-48A 3 kHz, 0 dB tape speed adjustment
IC101
IC601
RV601
adjustment screw
To Next Page
Loading...
