Service manual

45
13VT-R100/R150
13VT-CR10
NO
DRUM MOTOR TROUBLESHOOTING
DRUM MOTOR TROUBLESHOOTING
FLOW CHART NO.1-6 FLOW CHART NO.1-7
CAPSTAN MOTOR TROUBLESHOOTING
FLOW CHART NO.1-8
The drum motor fails to run. The capstan motor fails to run.
Drum motor cannot stop.
YES YES
YES
YES
YES YES
YES
YES
YES
YES YES
YES
Is 2.5V applied at pin (69) of IC2201?
Is 5V applied at pin (8) of AC connector?
Is the voltage about 2.6V applied at pin (4) of AC connector?
Is the voltage about 3.5V applied at pin (3) of AC connector? Check the connection between AC connector and MC connector. OR Change capstan motor.
Check the AT 5V line (around IC756).
Is the PWM signal detected at pin (31) and (33) of IC2001?
Check the connection between AD connector and ME connector. Or replace drum motor.
Check the AT 12V line.
Check IC2201.
Check IC2001.
Check IC7706.
Is the voltage more than 12V applied at pin (21) of IC7706? Is the voltage at pin (2) of IC7706 become about 2.6V? (drum motor rotator timing) Is pin (2) of IC7706 become 0.6V?
Replace drum motor. Check R7759.
Is pin (47) of IC2001 become 0 V?
Is the signal detected from pin (16),(17) and (18) of the IC7706? (drum motor rotator timing)
NO
Check whether pin (70) of IC2201 is 2.5V. Check input power supply pin of IC2201. Check the connection between pin (32) and pin (34) of IC2001 and all the way up to pin(2) of IC7706
Check the connection between pin (31) and (33) of IC2001 and pin (4) of AC connector.
NO
Is there PWM signal at pin (32) and (34) of IC2201?
NO NO
NO
NO
CAPSTAN MOTOR TROUBLESHOOTING
FLOW CHART NO.1-9
Capstan motor cannot stop.
YES YES
Is pin (4) of AC connector become 0 V?
Is pin (29) of IC2001 become 0 V?
Replace R7754.
NO
NO
Is 5V detected at pin (92) of IC2001? Check R7732, R7734 to R7736 and C7730.
Check IC2001.
NO
Check IC2001.
NO
NO NO
Check IC2001.
NO
Replace capstan motor.