Read Sony CMT-CP500MD / HCD-CP500MD Service Manual online
26
HCD-CP500MD
Precaution
1.
Clean the following parts with a denatured alcohol-moistened
swab:
swab:
record/playback heads
pinch rollers
erase head
rubber belts
capstan
idlers
2.
Demagnetize the record/playback head with a head
demagnetizer.
demagnetizer.
3.
Do not use a magnetized screwdriver for the adjustments.
4.
The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
supply voltage unless otherwise noted.
Torque Measurement
Note:
Standard Volume Point is +10 dBs at SPEAKER Output Level (6
Ω
load resistance) during playbacking P-4-L300 Test Tape.
(DSG OFF, TREBLE/BASS CENTER)
(DSG OFF, TREBLE/BASS CENTER)
Record/Playback Head Azimuth Adjustment
Procedure:
1.
1.
Mode : Playback
Tape
P-4-A100
WS-48B
P-4-L300
10 kHz, –10 dB
3 kHz, 0 dB
315 Hz, 0 dB
Azimuth Adjustment
Tape Speed Adjustment
Level Adjustment
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 1 dB of peak.
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1 dB of peak.
L-CH
peak
peak
R-CH
peak
peak
screw
position
position
output
level
level
within
1 dB
1 dB
L-CH
peak
peak
R-CH
peak
peak
screw
position
position
within 1dB
3.04 – 6.96 N • m
(31 to 71 g • cm)
(0.43 – 0.98 oz • inch)
0.20 – 0.58 N • m
(2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
3.04 – 6.96 N • m
(31 to 71 g • cm)
(0.43 – 0.98 oz • inch)
0.20 – 0.58 N • m
(2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
6.97 – 14.02 N • m
(71 to 143 g • cm)
(0.98 – 1.99 oz • inch)
0.98 N • m or more
(100 g or more)
(3.53 oz or more)
0.98 N • m or more
(100 g or more)
(3.53 oz or more)
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Mode
FWD
FWD
back tension
back tension
REV
REV
back tension
back tension
FF/REW
FWD tension
REV tension
Torque meter
Meter reading
Signal
Used for
DECK SECTION
0 dB=0.775V
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 adjusted.
parts adjusted.
4.
The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
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.)
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.
CH.
7.
Switches and controls should be set as follows unless otherwise
specified.
specified.
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
test tape
P-4-A100
(10kHz, –10dB)
P-4-A100
(10kHz, –10dB)
SJ301
SPEAKER
Output Terminal
SPEAKER
Output Terminal
level meter
set
+
–
6
Ω
Click on the first or last page to see other CMT-CP500MD / HCD-CP500MD service manuals if exist.