Aiwa xc-rw700 Service Manual page 77

TROUBLESHOOTING - 14/26
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3 7 63 1515 0
Focus Actuator operating
is abnormal
Is there
Focus Search control signal
input? (IC501 pin 3)
YES
Is there Focus Search
drive voltage output?
(IC501 pin 13,14)
YES
Check the connection of PN401 Pin 1,4.
Check the Pick-up Connector(CN401).
Replace the Pick-Up.
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L 13942296513
Spindle control is abnormal 1
(CD-AUDIO DISC)
Does FOCUS Servo
operate normally?
YES
Is there RFAC signal input?
(IC201 pin 163)
YES
Go to Spindle operating is
abnormal
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.
http://www.xiaoyu163.com
Check the connection of IC201 pin207.
NO
Check the communication line between
IC201 and IC701
Replace the IC201(OTI-9790)
NO
Is Act_Mute signal L ?
Replace the IC501(BA5983FM).
NO
Go to Focus Servo is unstable
NO
Is there a output normally?
(IC401 pin 71, 72)
Replace the IC413(EL2245CS).
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http://www.xiaoyu163.com
2 9
8
(IC501 pin 9)
YES
Q Q
3 6 7 1 3 1 5
YES
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.
-77-
9 4 2 8
Check the connection of IC701
NO
pin26.
Replace the IC701(MICOM)
0 5 8 2 9 9 4 2 8
NO
Replace the IC401(CXA2551R).
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9 9
9 9