Sharp CD-C250X BK Service Manual page 16

Check waveform of ICl pin 7 (TE).
5ms
1.00 v
ICI @TE
5 ms
5.0 v
Play operation is performed without disc.
The turntable rotates a little.
The turntable fails to rotate or rotates at
appears, and no-disc state apperas
soon.
Data cannot be read.
Yes
high speed.
Although IL is possible, play is impossible.
program top cannot be reached.
I
Check the VCO-PLL system.
Figure 16
The spin driver circuit is normal.
Check the periphery of ICl pins 23 to 27, pin 39, and pin 40, IC2
pin 13 and pin 14, IC5 to CNPS.
Check the periphery of IC 1
Yes
Check the periphery of