26
HCD-CP500K/CP500MD
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
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.
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)
Record/Playback Head Azimuth Adjustment
Procedure:
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.
L-CH
peak
R-CH
peak
screw
position
output
level
within
1 dB
L-CH
peak
R-CH
peak
screw
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
REV
REV
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.
4.
The adjustments should be performed with the rated power
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.)
6.
The adjustments should be performed for both L-CH and R-
CH.
7.
Switches and controls should be set as follows unless otherwise
specified.
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
test tape
P-4-A100
(10kHz, –10dB)
SJ301
SPEAKER
Output Terminal
level meter
set
+
–
6
Ω
Summary of Contents for HCD-CP500K
Page 39: ...39 HCD CP500K CP500MD MEMO ...
Page 47: ...HCD CP500K CP500MD 47 47 7 4 SCHEMATIC DIAGRAM CD BOARD Page 52 ...
Page 49: ...HCD CP500K CP500MD 49 49 7 6 SCHEMATIC DIAGRAM BD BOARD 1 2 Page 50 Page 50 Page 50 ...
Page 55: ...HCD CP500K CP500MD 55 55 7 12 SCHEMATIC DIAGRAM TC BOARD IC B D Page 52 ...
Page 59: ...HCD CP500K CP500MD 59 59 7 16 SCHEMATIC DIAGRAM CONTROL SECTION Page 53 Page 52 Page 52 ...
Page 93: ...93 HCD CP500K CP500MD MEMO ...