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MECHANICAL ADJUSTMENTS
3 7 63 1515 0
1. Wipe the following components with an absorbent cotton cloth
moistened with alcohol before adjustment :
PB head
Idler
Capstan
2. Demagnetize the PB head using a head demagnetizer.
3. Be careful not to use a magnetized screwdriver.
4. After the adjustment is completed, lock the adjustment parts
using screws.
5. Unless otherwise specified, make adjustments at the specified
voltage (14.4V).
Torque Measurement
Mode
Torque Meter
FWD
FWD
Back Tension
REV
CQ-102RC
REV
Back Tension
FF, REW
Tape Tension Measurement
TE
L 13942296513
Mode
Tension Meter
FWD
REV
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SECTION 4
PRECAUTION
Pinch roller
Rubber belt
Meter Reading
35 – 65 g • cm
(0.49 – 0.90 oz • inch)
CQ-102C
0.5 – 5.0 g • cm
(0.01 – 0.07 oz • inch)
35 – 65 g • cm
(0.49 – 0.90 oz • inch)
0.5 – 5.0 g • cm
(0.01 – 0.07 oz • inch)
60 – 200 g • cm
CQ-201B
(0.83 – 2.78 oz • inch)
Meter Reading
CQ-403A
more than 60 g
CQ-403R
(more than 2.12 oz)
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ELECTRICAL ADJUSTMENTS
8
See the adjustment location from on page 31 for the
adjustment.
TAPE SECTION
Tape Speed Adjustment
Procedure :
1. Put the set into the FWD PB mode.
test tape
WS-48A
(3 kHz, 0 dB)
Specification : Constant speed
Speed checker
– 1.5 to + 2.5 %
Adjustment Location : See page 31.
DOLBY Level Adjustment
Setting :
SHIFT button
Preset 9 (P MODE) button : ON ( light up P MODE
Q Q
3
6 7
1 3
Preset 10 (n) button
test tape
P-4-D400
(400 Hz, 0 dB)
Procedure :
1. Put the set into the FWD PB mode.
2. Adjust RV101 (L-CH) and RV201 (R-CH) on main board so
that level meter reading is – 6 ± 0.5 dB (0.37 to 0.41 V).
Adjustment Location : See page 31.
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– 27 –
SECTION 5
2 9
9 4
2 8
0 dB = 0.775 V
frequency counter
10 k Ω
set
LINE OUT REAR
Frequency counter
2,955 to 3,075 Hz
: ON ( light up REP, SET UP
and P MODE)
1 5
0 5
8
2 9
9 4
and n)
: NR off
set
main board
TP (DOLBY)
L-CH
R-CH
m
co
9 9
speed checker
or
2 8
9 9
level meter
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