Mechanical Adjustments; Electrical Adjustments; Tape Tension Measurement - Sony HCD-H11 Service Manual

QQ
3 7 63 1515 0

4-1. MECHANICAL ADJUSTMENTS

PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head
capstan
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 sup-
ply voltage unless otherwise noted.
Torque Measurement
r
Mode Torque Meter
Forward CQ-102C
Forward
CQ-102C
Back Tension
Reverse CQ-102RC
Reverse
CQ-102RC
Back Tension
TE
L 13942296513
FF, REW CQ-201B

Tape Tension Measurement

r
Mode Torque Meter
Forward CQ-403A
Reverse CQ-403R
www
.
http://www.xiaoyu163.com
SECTION 4
ADJUSTMENTS
rubber belts
Meter Reading
36 to 61g•cm
(0.50 – 0.84 oz•inch)
2 to 6g•cm
(0.026 – 0.082 oz•inch)
36 to 61g•cm
(0.50 – 0.84 oz•inch)
2 to 6g•cm
(0.026 – 0.082 oz•inch)
61 to 143g•cm
(0.85 – 1.98 oz•inch)
Meter Reading
more than 100g (3.53 oz)
more than 100g (3.53 oz)
x ao u163
y
i
– 10 –
http://www.xiaoyu163.com
2 9
8

4-2. ELECTRICAL ADJUSTMENTS

DECK SECTION
1. The adjustment should be performed in the publication.
(Be sure to make playback adjustment at first.)
2. The adjustment and measurement should be performed for
both L-CH and R-CH.
Switch position
r
DOLBY NR switch
TIMER switch
DIRECTION MODE switch
3. Deck section electrical adjustment are made in test mode by
pressing TUNER/BAND, DISPLAY, and FUNCTION at the
same time.
– Record Mode –
AF OSC
attenuator
Test Tape
r
Tape Contents
Q Q
3 6 7 1 3 1 5
P-4-A 100 10 kHz, –10dB
P-4-L300 315Hz, 0dB
WS-48B 3kHz, 0dB
0dB=0.775V
Record/Playback Head Azimuth Adjustment
DECK A DECK B
Setup for adjustment
r
When adjusting the azimuth remove, the Window (DIS) in the
center of the front panel. (Refer to page 8.)
Procedure :
1. Forward Playback mode
Reverse Playback mode
test tape
P-4-A100
(10kHz, – 10dB)
set
co
.
9 4 2 8
: OFF
: OFF
: A
Level meter
600 Ω
+
set
–
MD OUT
MD IN
Use
0 5 8 2 9 9 4 2 8
Head Azimuth Adjustment
Level Adjustment
Tape Speed Adjustment
Level meter
+
-
m
MD OUT
9 9
9 9