FLOW CHART
CASSETTE CONTROL TROUBLESHOOTING (1)
I
A cassette tape is not taken in.
,
FLOW CHART NO.9
CONTROL
A cassette tape is taken in, but ejected at once.
Fix or replace the cassette housing.
Does the start sensor pulse at pin
(87) of
change from a
to
Check start sensor and all the way
“H” level when the cassette tape is
up thru to
loaded?
NO
Are the start sensor cover go to
open when the cassette tape is
YE5
NO
Check start sensor cover.
YES
Does pin (87) of
change
from
to
level when the
cassette tape is inserted?
NO
Check start sensor and all the way
up thru to pin (87) of
YE5
Does pin
of
go to a “H”
(about
level when the
cassette tape is inserted?
YES
NO
Check line between pin (96) of
and all the way up thru to
pin (5) of
Does pin (2) of
change to
NO
Check
about
when the cassette tape
is inserted?
Is the specified voltage applied at
NO
Check between
and loading
the loading motor terminal when
the cassette tape is inserted?
YES
Replace loading motor.
Does the end sensor pulse at pin
NO
(88) of
change from a
to
Check end sensor and all the way
a
level when the cassette tape
is loaded?
YES
Does the master cam mode shifter
NO
operate normally when the
Check cam switch and all the way
cassette tape is loaded?
up thru to
YES
Replace
Summary of Contents for VC-MH80
Page 64: ...10 VC MH80 10 VC M H90 8 L I 7 I 8 I 9 I 1 0 I 11 I 1 2 1 68 ...
Page 68: ...180 VC MH80 190 C MH90 c3 Playback Signal m Recording Signal b E E Signal 72 ...
Page 69: ...POWER CIRCUIT BLOCK DIAGRAM yi 2 __ i 1 I 1 VC MH80 VC M H90 73 V Vt _ _ ____ _ _ _ ____ i ...
Page 72: ...VC MH80 VC MH90 I 7 I 8 I 9 I 1 0 I 11 I 1 2 I 76 ...
Page 73: ...I I I I I I 1 I I ...
Page 74: ...VC MH80 VC MH90 78 ...
Page 76: ...VC MH80 VC MH90 1 f I I I I 7 I 8 I 9 I 1 0 I 11 I 1 2 I 80 ...
Page 77: ...RB n f I JI 3 I i I I ...
Page 78: ...VC MH80 VC MH90 I II I I II __ _ i r I 7 I 8 I 9 I 10 I 11 I 1 2 1 5 82 ...
Page 79: ...I I 0 I n I m I 0 I 0 I m I b 1 L I III r ...
Page 80: ...10 IO VC M H80 VC MH90 r 8 a a4 ...
Page 81: ...VC MH80 vc I VC MH90 vc I MAIN CIRCUIT 5 1 2 I 3 I 4 I 5 I 6 I a5 ...
Page 84: ...VC M H80 VC MH90 1362 1 u 404 I I RN I 404 7h RN1404 I 7 I a I 9 I 1 0 I 1 1 I 1 2 I ...
Page 85: ......
Page 86: ...VC MH80 VC MH90 I 7 I a I 9 I 1 0 I 11 I 1 2 I 90 _ _ ...
Page 87: ...VC MH80 VC MH90 OPERATION TIMER CIRCUIT VC MH90 1 I 2 I 3 I 4 I 5 I 6 I ...
Page 88: ...0 VC M H80 0 VC M H90 I I I I 7 I a I 9 I 1 0 I 11 I 1 2 I ...
Page 92: ...VC M H80 VC M H90 LL I I 7 I 8 I 9 I 10 I 11 I 12 I ...
Page 94: ...r L i ...
Page 97: ...VC MH80 vc n VC MHSO vc n PWB FOIL PATTERN I M A I N P W B 2 I 3 I 4 I 5 I 6 I 101 ...
Page 98: ...VC MH80 VC MHSO 102 ...
Page 99: ...VC MH80 VC MH90 IF PWB OPERATION P REC TIP PWE U U TIF I 2 I 3 I 4 I 5 I 6 I 103 ...
Page 123: ...VC MH80 VC MH90 11 EXPLODED VIEWS MECHANISM CHASSIS PARTS I 1 I 2 I 3 I 4 I 5 I 6 1 127 ...
Page 124: ...VC MH80 VC MH90 CASSElTE HOUSING CONTROL PARTS 1 I 2 1 3 I 4 I 5 1 6 I 128 ...
Page 125: ...VC MH80 VC MH90 MECHANICAL PARTS I 1 I 2 I 3 I 4 I 5 I 6 1 ...