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31
HCD-ZUX9
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
[RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT]
Note:
Perform this adjustments for both decks
Procedure:
1. Mode: Playback
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
screw
position
L-CH
peak
within
1dB
output
level
L-CH
peak
R-CH
peak
within
1dB
screw
position
R-CH
peak
0 dB = 0.775 V
set
JACK board
PHONES jack
(J904)
+
–
level meter
test tape
P-4-A100
(10 kHz,
−
10 dB)
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in
this service manual. (As a general rule, playback circuit
adjustment should be completed before performing recording
circuit adjustment.)
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless otherwise
specified.
•
Test Tape
Tape
Signal
Used for
P-4-A100
10 kHz, –10 dB
Azimuth Adjustment
• Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab :
record/playback heads
pinch roller
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to
the parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
• Torque Measurement
DECK SECTION
2.9 mN • m to 6.9 mN • m
30 to 70 g • cm
(0.42 – 0.97 oz • inch)
0.15 mN • m to 0.59 mN • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
4.8 mN • m to 16.7 mN • m
49 to 170 g • cm
(0.68 – 2.36 oz • inch)
CQ-102C
CQ-102C
CQ-201B
Mode
FWD
FWD
back tension
FF/REW
Torque meter
Meter reading
DECK A
DECK B
Summary of Contents for HCD-ZUX9
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