Adjustments; Mechanical Adjustmens - Sony ZS-D55 Service Manual

TRAVERSE SIGNAL check
z
Test mode PLAY status
Connection Point : CD board (Conductor side)
[CD BOARD] (Conductor side)
TP(RF)
Press the M or m from test mode PLAY status.
Check to see that the traverse signal level is between 200 to
500mVp-p.
0V
A = B
oscilloscope
IC701
(AC range)
IC701 rg pin(TO)
JW741 (VC)
Note:
Extend the sweep time
for easier view.
A
A
200 – 500mVp-p
0V
B
B
SECTION 5

ADJUSTMENTS

5-1. MECHANICAL ADJUSTMENTS
TAPE RECORDER SECTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback/erase head
rubber belts
2. Demagnetize the record/playback/erase head with a head demag-
netizer.
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
Torque Torque Meter
Forward
Forward
Back Tension
Reverse CQ-102RC
Reverse
CQ-102RC
Back Tension
FF/REW
Tape Tension Measurement
Mode Tension Meter
FWD
REV
– 18 –
PRECAUTION
pinch roller
capstan
Meter Reading
3.54 to 5.98 mN • m
CQ-102C (36 to 61 g • cm)
(0.5 to 0.84 oz • inch)
0.2 to 0.58 mN • m
CQ-102C (2 to 6 g • cm)
(0.028 to 0.083 oz • inch)
3.54 to 5.98 mN • m
(36 to 61 g • cm)
(0.5 to 0.84 oz • inch)
0.2 to 0.58 mN • m
(2 to 6 g • cm)
(0.028 to 0.083 oz • inch)
5.99 to 14.02 mN • m
CQ-201B (61 to 143 g • cm)
(0.85 to 1.98 oz • inch)
Meter Reading
more than 100g
CQ-403A
(more than 3.53 oz)
more than 100g
CQ-403A
(more than 3.53 oz)