– 6 –
3-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
playback head
pinch roller
capstan
rubber belt
2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. These measurement and adjustment should be performed with
the rated power supply voltage (2.5 V) unless otherwise noted.
Torque Measurement
Mode
Torque Meter
Meter Reading
FWD
20 – 30 g • cm
CQ-102C
(0.28 – 0.41 oz• inch)
FWD
0.4 – 2 g • cm
back tension
(0.006 – 0.027 oz• inch)
FF, REW
CQ-201B
more than 40 g • cm
(more than 0.56 oz• inch)
SECTION 3
ADJUSTMENTS
3-2. ELECTRICAL ADJUSTMENTS
PRECAUTION
•
Supplied voltage : 2.5V.
•
Switch and control position
MEGA BASS switch : OFF (FX195)
VOLUME control : maximum
AVLS switch : NORM
Test Tape
Type
Signal
Used for
WS-48A
3kHz, 0dB
Tape Speed Adjustment
Tape Speed Adjustment
Procedure :
1. Playback WS-48A (tape center part) and adjust RV601 so that
the frequency counter reading becomes 3,000Hz.
Standard value : 2,985–3,015Hz
2. Playback WS-48A (tape top and end).
Check that frequency counter reading is within 1.5% of the read-
ing of step 1.
*1
FX193 E, Chines, Saudi Arabia,
16
Ω
FX195
E, Chines, Saudi Arabia, AEP, French, Italian,
CEV
32
Ω
FX193 US, Canadian, AEP, French, Italian, CEV
FX195 Canadian
• Abbreviation
CEV : Ukraine, Hungary, Czech
Adjustment Location :
set
test tape
WS-48A
(3kHz, 0dB)
frequency counter
phones jack (J302)
*
1
[MAIN BOARD] (Conductor side)
RV601 : Tape Speed Adjustment
