Sony CDP-CX235 - Disc Spins, but Does Not Read TOC Flowchart

48
DISC SPINS, BUT DOES NOT READ TOC FLOWCHART
7/5/00
SPINS
DOES NOT
READ TOC
RFO LEVEL
1.2VPIP
MINIMUM?
OK
CHECK
POWER
SUPPLY
13A122
CHECK
SLED
AUDIO
CD
USED?
IS LOCK = HIGH
(IC101 TP)
DURING
DISC SPIN?
CLEAN LENS
& RE-CHECK
LEVEL
PB
OK?
REPAIR
P.S.
NO
NO
SUSPECT:
OPTICAL
ASSEMBLY,
RIBBON CABLE,
Q101
YES
YES
NO
REPAIR/
REPLACE
SLED BINDING
MOTOR,
DRIVER IC
NG
YES
BD BOARD
SERVO IS
WORKING
SQDATA/
CLOCK
FROM
IC101 NOT
GETTING
TO SYSCON
YES
IC101
DEFECTIVE
NO
SPINDLE
MOTOR OR
ITS DRIVER IC
IS DEFECTIVE
YES
CHECK
MANUAL
FOR DISC
PARAMETERS
NO
YES
IS C2PO LOW
(IC101 TP)
DURING DISC
SPIN?
CHECK
TRACKING
SERVO
(TE
WAVEFORM)
OK
SUSPECT:
OPTICAL
ASSEMBLY/
RIBBON CABLE
DRIVER IC
NG