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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 demagne-
tizer.
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 sup-
ply voltage unless otherwise noted.
Torque Measurement
Mode
Torque Meter
FWD
CQ-102C
FWD
CQ-102C
back tension
REV
CQ-102RC
REV
CQ-102RC
back tension
FF/REW
CQ-201B
FWD tension
CQ-403A
REV tension
CQ-403A
Precaution
1. Demagnetize the record/playback head with a head demagne-
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
4. The adjustments should be performed with the rated power
5. The adjustments should be performed in the order given in
6. The adjustments should be performed for both L-CH and R-
Meter Reading
7. Switches and controls should be set as follows unless other-
3.1~6.96 mN•m
(31 to 71 g•cm)
8. Set to the DOLBY NR OFF.
(0.43 – 0.98 oz•inch)
9. Set to the test mode.
0.20~0.58 mN•m
(2 to 6 g•cm)
(0.03 – 0.08 oz•inch)
3.1~6.96 mN•m
(31 to 71 g•cm)
(0.43 – 0.98 oz • inch)
0.20~0.58 mN•m
(2 to 6 g•cm)
(0.03 – 0.08 oz • inch)
6.97~14.02 mN•m
• Test Tape
(71 to 143 g•cm)
(0.99 – 1.99 oz • inch)
9.80 mN•m
(100 g or more)
(3.53 oz or more)
9.80 mN•m
(100 g or more)
(3.53 oz or more)
SECTION 6
ELECTRICAL ADJUSTMENTS
DECK SECTION
0 dB = 0.775 V
tizer.
parts adjust.
supply voltage unless otherwise noted.
this service manual. (As a general rule, playback circuit ad-
justment should be completed before performing recording
circuit adjustment.)
CH.
wise specified.
(1) Press the
button to turn the power ON.
?/1
(2) Select the function "TAPE A or B".
[
/CLOCK SET]
(3) Press the button of
c
[DISC 3]
and
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
Tape
Signal
P-4-A100
10 kHz, – 10 dB
WS-48B
3 kHz, 0 dB
P-4-L300
315 Hz, 0 dB
HCD-XG60/XG500
[ENTER/NEXT]
,
,
?/1
button.
Used for
Azimuth Adjustment
Tape Speed Adjustment
Playback Level Adjustment
15
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