Casio CD-350S Service Manual page 14

2-A2
at C964 4.7UF (FSO) like that
shown in figure 12?
waveform at pins 21 to 23
of IC903 like that shown
Check 15P flat cable.
Check focus coil of pickup
(DC resistance : 8 Ω).
Vref
A2
Is Q403
emitter 8V?
Yes
Is waveform
Yes
Is
in figure 13?
Yes
0.2 V
Figure 12
No
Check circuit around Q403.
Check circuit around pin
No
16 (FSO) of IC902.
IC902 is defective.
Yes Check circuit around
pins 20~23 of IC903.
Vref
Figure 13
— 12 —
2.5 V