Tape Section - Sharp MD-X60 Service Manual

TAPE SECTION

Adjusting the mechanism
Driving Force Check
Torque Meter
Play:TW-2412
Reverse Play:TW-2422
Checking the playback/FF/rewinding torque
Torque Meter
Play:TW-2111
Reverse Play:TW-2121
Fast forward:TW-2231
Rewind:TW-2231
Adjusting the record / playback head azimuth
Test Tape
MTT-114 Output: L:TP102 pin 3
Tape Speed
Test Tape Adjusting Point Specified Value Instrument Connection
MTT-111 VR107 3,000±30Hz
* Raise the cassette holder cover and remove it, and then
adjust the azimuth.
R-CH
PLAY SENS.
L-CH
PLAY SENS.
MAIN PWB
L-CH
REC FREQUENCY
R-CH
REC FREQUENCY
Specified Value
120 g or more
120 g or more
Specified Value
25 to 65 g.cm
25 to 65 g.cm
60 to 130 g.cm
60 to 130 g.cm
Instrument Connection
R:TP102 pin 1
L:TP102 pin 3
R:TP102 pin 1
TAPE
SPEED
CNP930
VR104
VR101
CNP101
3
VR102
TP101
Figure 17 Adjustment Point
Adjusting the deck circuit
Position of each swich or control
VOLUME
FUNCTION
TAPE
DOLBY NR
REVERSE MODE
BEAT SW
Checking the bias oscillation Frequency
Adjusting Point Specified Value
-
Adjusting the record/playback frequency
Test Tape Adjusting Point
Record level control
UR-121 L:VR101
R:VR102
Adjusting the playback amplifier sensitivity
Test Tape Adjusting Point
MTT-150 L:VR103
R:VR104
Adjusting the record/playback sensitivity
Test Tape Adjusting Point
Record level control
UR-121 L:VR105
R:VR106
VR107
CNP920
CNP102
VR103
VR105
VR106
TP102
3 2 1
Pin 1 : R
Pin 3 : L
– 17 –
MAX
TAPE
NORMAL
OFF
NORMAL
A
Instrument Connection
102±7kHz TP101(IC102 pin 3)
Specified Value Instrument Connection
10mV Input:AUX
(10kHz)
10mV Output
L:TP102 pin 3
R:TP102 pin 1
Specified Value Instrument Connection
Standard:300mV L:TP102 pin 3
R:TP102 pin 1
Specified Value Instrument Connection
100mV Input:AUX
(1kHz)
100mV Output
L:TP102 pin 3
R:TP102 pin 1
L-CH
REC SENS.
R-CH
REC SENS.
MD-X60