Zenith XBV613 Service Manual - Page 101
Mechanism Troubleshooting Guide
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UPC - 719192169715
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MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism A. Auto REW doesn't work. YES Is the supply to the END sensor END sensor "H"? "H": more than 3.5V "L": less than 0.7V~1V YES NO Is the Vcc. voltage of End sensor 5V? YES NO Replace End sensor. Check the syscon power. Is the voltage across IR LED between 0.8~1.5V? YES Check syscon circuit. NO Replace LED. B. No F/R modes. YES Is the present mode, F/R Mode? NO YES Does the Capstan Motor rotate? NO YES Does the T/Up, Supply Reel rotate? YES Check syscon circuit. Is the mode SW assembled correctly (refer to Pages 4-14.) Is the normal voltage supplied to the Capstan Motor Vcc1, Vcc2.? YES Is terminal voltage (Vctl) of Capstan Motor supply side more than 4V? YES NO Replace the Capstan Motor. Check Servo, Power Circuits. 4-23
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