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Mechanism operation
When trouble is found in the mechanism operating. (rotation,play,tray open/close,lead)
Check voltage
No
pin No 2 of RCW3(6P)
at main PCB : 8V?
Yes
Check voltage
No
pin No 4,6 of RCW3(6P)
at main PCB : 5V?
Yes
Check wave
pin No3(CDR-RCT) of
No
UCW2(9P) at front PCB
when power ON
Yes
Check wave
No
pin No4~9 of UCW2(9P)
:interface wave ?
Yes
Replace mechanism
Check voltage
No
Check for RC7,RD5,RD6,RD7,RD8
positive of RC7(6800uF/
25V) : 12V?
Yes
Check for RQ3,RZD3,RR3
No
Check voltage
input of RC1(7805)
:8V?
Yes
Replace RIC1
-Check pin No 1 of micom(UIC1)
-Check connecting of UCW2(9P)
RFU3(2.5A),RCW1,PFU1,PFU2
Yes
Check voltage
positive of RC7(6800uF/
25V) : 12V?
Yes
Check for RQ4,RZD4,RR5
XL-R910SL
1-9
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