CAPSTAN MOTOR TROUBLESHOOT
I
NG
FLOW CHART NO.
TAKE-UP REEL PULSE GENERATOR TROUBLESHOOTING
FLOW CHART NO.
The capstan motor fails to run.
Is the voltage more than about
N O
given out of pin
of
Check
and all the way up
to pin
of
YES
I .
I
t
at pin
of MC connector
N O
I
Check the
line.
I
YES
I
I
I
Is
at pin
of MC connector ?
N O
Check
ins
and
of
and al
to the
line.
the way up
YES
I
I
Is the voltage more than about
given to pin
of MC
connector
N O
Check between the MC
connector and
and
between the MC connector and
pin
of
I
I
I
YES
t
I
Is the voltage at pin
of MC
connector
?
and
of
YES
I
I
N
O
Check the
line.
I
I
I
YES
I
Check/replace the capstan
sensor pulse appears.
Insert the cassette, and
unit in or
Are there the
take
up/sup
the
of
reel pulses at
YES
u to
1 ?
N O
Are there the take
up/sup
the
of
reel pulses at
YES
Check between
and
between
and
NO
Replace the
up/supply reel sensors
HEAD SWITCHING PULSE TROUBLESHOOTING
FLOW CHART NO.
I
No head switching pulse.
I
drum
CHART
rotating ?
.
I
I
I
YES
t
Are the drum
and
drum
signal inputted
YES
to pins
and
of
respectively
pulse.
NO
Are there the drum PC
and drum
Signals at
pins
and
of
Y E S
Check
and all the
way up to pins
and
connector
of
N O
Check the harness
and the drum motor unit.
I
Summary of Contents for VT-3428X
Page 78: ...m 3428X VT 51 28X IF Pack Unit RiWOOl7CEZZ 1 4 11 l e i t 1 I 2 I 3 I 4 I 5 I 6 1 78 ...
Page 82: ...VT 3428X VT 5128X I AWIO m I Au 10 f X I 7 I 8 I 9 I 10 I 11 I 12 I 82 ...
Page 90: ...VT 3428X VT 51 28X I t 7 I 8 I 9 I 10 I 11 I 12 I ...
Page 94: ...VT 3428X W 5128X 3 7 I 8 I 9 I 10 I 11 I 12 I 94 ...
Page 96: ...VT 3428X VT 51 28X TO Y C AUDIO CIRCUIT NCR 21 I I I I 7 I 8 I 9 I 10 I 11 I 12 I 96 ...
Page 100: ...m 3428X VT 51 28X Wiring Side f r 7 I 8 I 9 I 10 I 11 I 12 1 100 ...
Page 102: ...VT 3428X VT 51 28X I 7 I 8 I 9 I 10 I 11 102 1 12 I ...
Page 104: ...VT 3428X I m 5128X 1 7 I 8 I 9 I 10 I 11 I 12 I ...
Page 123: ...MECHANISM CHASSIS PARTS G F E I i 1 I 2 I 3 I 4 I 5 I 6 I 123 ...
Page 125: ...CASSETTE HOUSING CONTROL PARTS i T 3428X VT 51 28X 1 I 2 I 3 I 4 I 5 I 6 I 125 ...
Page 127: ...VT 3428X W 51 28X MODIEL VT 3428X CABINET AND MECHANICAL PARTS 1 I 2 I 3 I 4 I 5 I 6 127 ...
Page 128: ...W 3428X VT 51 28X I IO 9 0 3 7 128 ...
Page 130: ...VT 3428X VT 5128X I 0 I 0 ...
Page 132: ...MODELS VT 3428X AND VT 51 28X CABINET AND MECHANICAL PARTS I i 1 I 2 I 3 I 4 I 5 I 6 I 132 ...
Page 136: ...S H A R P TQ0023 S Printed in Japan 0 w s MW KD ...
