Sharp MD-MS200W User Manual

MD-MS200W/MD-MS200/MD-MS200H
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• Abnormal display
No
Yes
Is waveform output from IC 401 pins 13 to 15?
Check for pattern breakage of flexible PWB, check for
defects of display microcomputer (replace the display unit).
Is waveform output from CNS 402 pins 1 to 3?
Are the pin7 (VCC) and pin 6 (GND) normal?
• Playback state cannot be set
Is playback state unsettable for high reflection disc and low
reflection disc?
Yes
Check between IC401 and
CNS402.
No
Check the periphery of IC401.
Proceed to "Test mode check".
Yes
Only the low reflection disc cannot be played back.
Only the high reflection disc cannot be played back.
Yes
Is the pin 46 of IC401 in L state when the high reflection disc
is inserted?
Is the pin 51 of IC401 and pin 23 of IC101 in L state?
Check SW902, mechanism flexible PWB and CN601.
No
Proceed to "Test mode check".
Yes
No
Yes
Is the pin 46 of IC401 in L state when the high reflection disc
is inserted?
Is the pin 51 of IC401 and pin 23 of IC101 in L state?
No
Proceed to "Test mode check".
Yes
Check SW902, mechanism flexible PWB and CN601.

Sharp MD-MS200W Specifications

General

Brand	Sharp
Model	MD-MS200W
Category	MiniDisc Player
Language	English