Sharp MD-MS200W Service Manual page 40

MD-MS200W/MD-MS200/MD-MS200H
Continued from the preceding page
In case of high reflection disc, proceed to the item "normal
playback".In case of low reflection disc, check whether
adjustment is within allowable range in the TOTAL level
adjustment step.
Doesn't the disc motor run at high speed in the same step?
Is tracking gain adjustment within allowable range in the
same step?
Is adjustment within allowable range in tracking error
balance adjustment step?
Is tracking servo applied in focus gain fine adjustment step?
Is slide servo applied in continuous playback step?
Check item "Normal Playback".
Yes
Yes
Yes
Yes
Yes
Yes
Check whether values of pins 10, 11, 14, and 15 of IC201 and
No
pins 30 and 32 of IC101 (TP143) change when the
button is pressed.
Check ADIP waveform of pin 4 of IC201.
No
Check whether values of pins 16 to 19 of IC201 and TP144
No
(TEOUT) change when the
Check whether value of pin 20 of IC201 and TP144(TEOUT)
No
changes or DC shift occurs when the
pressed.
Check waveforms of pins 54 and 55 of IC201, pins 18, 19, 21,
No
and 23 of IC601, pins 4 and 6 of CNS101.
Replace IC201.
No
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/
/ button is pressed.
/ button is