7. Power Circuit(SMPS) (2) No 12VA.(Capstan)
No 12VA. YES Does 5.3VA work normally? YES Is the D109 normal? YES Check 12VA Line of the Main PCB short. NO Replace the D109. NO Check whether 5.3VA is out of order.
(3) No 12VA (CANAL, Buffer)
No 12VA. YES Is Vcc(about 14VA) put into the Q155 Collector? YES Is Voltage(about 14V) put into the Q155 Base? YES Check or Replace the Q155. NO 1. Check the ZD151 and the Peripheral Circuitry. 2. Check the R105. NO Replace the Peripheral Circuitry of Q155.
