24
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
Mode
Tension Meter
Meter Reading
Forward
CQ-403A
more than 90 g
(more than 3.18 oz)
Reverse
CQ-403R
more than 90 g
(more than 3.18 oz)
• Tape Tension Measurement
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head
pinch roller
rubber belt
capstan
idler
2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the power supply
voltage (14.4 V) unless otherwise noted.
• Torque Measurement
Mode
Torque Meter
Meter Reading
2.95 – 6.73 mN•m
Forward
CQ-102C
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Forward
0.05 – 0.44mN•m
CQ-102C
0.5 – 4.5 g•cm
Back Tension
(0.01 – 0.06 oz•inch)
2.95 – 6.73 mN•m
Reverse
CQ-102RC
(25 – 55 g•cm)
(0.42 – 0.90 oz•inch)
Reverse
0.05 – 0.44mN•m
CQ-102RC
0.5 – 4.5 g•cm
Back Tension
(0.01 – 0.06 oz•inch)
5.89 – 19.61 mN•m
FF, REW
CQ-201B
60 – 200 g•cm)
(0.83 – 2.78 oz•inch)
TEST MODE
<Set the Test Mode>
1. Turn ON the regulated power supply. (All LEDs on the set
lights up, and the clock is displayed.)
Note:
Press the
[OFF]
button, if the clock is not displayed.
2. Push the preset
[4]
button.
3. Push the preset
[5]
button.
4. Press the preset
[1]
button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the
[OFF]
button.
Tape Speed Adjustment
Setting:
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
reading on the speed checker or frequency counter becomes in
specification.
Specification: Constant speed
Adjustment Location: See page 25.
0 dB=0.775 V
TAPE DECK SECTION
Speed checker
Frequency counter
–1.5 to +2.5%
2,955 to 3,075 Hz
set
+
–
test tape
WS-48A
(3 kHz, 0 dB)
AUDIO OUT REAR jack (CN300)
10 k
Ω
speed checker
or
frequency counter
See the adjustment location from on page 25 for the
adjustment.
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