Zenith XBV613 Service Manual - Page 19
When the Capstan Motor doesn, t run
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UPC - 719192169715
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2. SERVO CIRCUIT (3) When the Capstan Motor doesn't run, When the Capstan Motor doesn't run, Does 12VA appear at PMC01? YES NO Refer to "SMPS(CAPSTAN/12Volt) Trouble Shooting". Does 2.8V appear at PMC01 Pin 9? NO YES Check the PMC01 and the Capstan Motor Ass'y. Are the foil patterns and Components between IC501 Pin77 and PMC01 Pin9 shorted? YES YES Does the PWM signal appear at IC501 Pin77? NO Does the CFG signal appear at PMC01 Pin1? NO Does the CFG signal come into IC501 Pin87? NO YES Does the Capstan PWM signal appear at IC501 Pin77? NO YES Are the foil patterns and Components between IC501 Pin77 and PMC01 Pin9 shorted? Check the Capstan Motor Ass'y. Are the foil patterns and component between IC501 Pin87 and PMC01 Pin1 shorted? Replace IC501. 3-8
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