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HCD-AZ2D/AZ5D
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
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, appiy 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
3.06 N
⋅
m to 6.96 N
⋅
m
FWD
CQ-102C
31 to 71 g
⋅
cm
(0.43 – 0.98 oz
⋅
inch)
FWD
0.19 N
⋅
m to 0.58 N
⋅
m
Back Tension
CQ-102C
2 to 6 g
⋅
cm
(0.02 – 0.08 oz
⋅
inch)
3.06 N
⋅
m to 6.96 N
⋅
m
REV
CQ-102RC
31 to 71 g
⋅
cm
(0.43 – 0.98 oz
⋅
inch)
REV
0.19 N
⋅
m to 0.58 N
⋅
m
Back Tension
CQ-102RC
2 to 6 g
⋅
cm
(0.02 – 0.08 oz
⋅
inch)
6.96 N
⋅
m to14.02 N
⋅
m
FF/REW
CQ-201B
71 to 143 g
⋅
cm
(0.98 – 1.99 oz
⋅
inch)
9.80 N
⋅
m
FWD Tension
CQ-403A
100 g or more
(3.53 oz or more)
9.80 N
⋅
m
REV Tension
CQ-403R
100 g or more
(3.53 oz or more)
0 dB=0.775 V
DECK SECTION
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.
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.
TEST Tape
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note:
Perform this adjustments for both decks.
Tape
Signal
Used for
P-4-A063
6.3 kHz, -10 dB
Azimuth Adjustment
DECK–A
DECK–B
set
MAIN board
VIDEO/SAT OUT
jack (J101)
+
–
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak
R-CH
peak
within
1dB
Screw
position
R-CH
peak
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