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Verfügbare Sprachen
Verfügbare Sprachen
FLOWCHARTNO.IOLOADINGMOTORAND EJECTTROUBLESHOOTING
The cassette tape fails to come out.
Does the capstan motor start when
the EJECT button is pressed?
Does the take-up reel disk turn
when the capstan motor is running?
YES
Are pulsesappliedat pin (10)of
10701when the take-up reel disk is
turning?
YES
Is a "H" (about 1.7V) level applied
at pin (6) of 107701when a reel
pulse has been inputted?
YES
Is the voltage about I OV sent out
from pin (10) of IC7701?
YES
Is the specified voltage applied at
the loading motor terminal?
YES
Dose the loading motor run?
YES
Replacecassettecam,gear,etc.
see FLOW CHART NO.12-
NO
(CAPSTAN MOTOR TROUBLE
SHOOTING)
NO
Check reel disk and reel drive unit.
Check take-up reel sensor and all
NO
the way up thru to IC701
Check line between pin (7) of
NO
IC701 and all the way up thru to pin
(6) of IC7701.
NO
Check
Check between IC7701 and all the
NO
way up thru to the loading motor.
NO
Replace loading motor.
Are key data pulses applied at
pin (17) of 10701, respectively?
AreFIPdatapulses, F IPclockpulsesan
and (9) of IC5001, respectively?
Does power control (H) signal at
pin (100)of IC701changefrom"L'
to "H"
Does the base voltage of 0953 and
Q954 change from about 9.0V to
about
Is 9V sent out from the emitters of
0953 and Q954 transistor?
IC7701.
Does the base voltage of Q958 and
(2959 change from OVto 5.6V?
Is 5V sent out from the emitter of
Q958 and 0959?
Check periperal circuits for poor
soldering.
FLOW CHART NO.II SYSTE
No pow
NO
YES
YES
NO
level?
YES
NO
8.3V?
YES
YES
YES
YES
NO
NO
NO
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