25
HCD-ZX9
0 dB=0.775 V
DECK SECTION
Precaution
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.
8. Set to the test mode.
(1) Press the
?
/
1
button to turn the power ON.
(2) Select the function “TAPE A or B”.
(3) Press the button of
x
(TC-B) ,
[TUNER ENTER]
, and
[DISC
3]
simultaneously, to set the tape deck test mode and displays
“TEST MODE” on the fluorescent indicator tube.
(4) To release from the test mode, press the
?
/
1
button.
• Test Tape
SECTION 6
ELECTRICAL ADJUSTMENTS
SECTION 5
MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads
pinch rollers
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer.
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
Mode
Torque Meter
Meter Reading
2.9 – 6.9 mN • m
FWD
(30 to 70 g • cm)
CQ-102C
(0.42 – 0.97 oz • inch)
FWD
0.19 – 0.59 mN • m
back tension
(2 to 6 g • cm)
(0.03 – 0.08 oz • inch)
7.8 – 16.7 mN • m
FF/REW
CQ-201B
(80 to 170 g • cm)
(1.11 – 2.36 oz • inch)
Tape
Signal
Used for
P-4-A100
10 kHz, –10 dB
Azimuth Adjustment
WS-48B
3 kHz, 0 dB
Tape Speed Adjustment
