![background image](http://html.mh-extra.com/html/samsung/sw-248b/sw-248b_service-manual_338730022.webp)
21
If the power of IC201 and pattern’s,
soldering is normal when you check,
replace IC201.
Is the waveform below output
through 140pin of IC201 ?
Y
N
Y
Is the waveform above input
through 24pin of IC401 ?
Y
Does output but spindle Motor rotate ?
Replace MOTOR.
Y
Y
N
If the power of IC401 and pattern’s,
soldering is normal when you check,
replace IC401.
N
N
N
No SPINDLE MOTOR ROTATION
Summary of Contents for SW-248B
Page 5: ...4 Disassembly Diagram ...
Page 15: ...14 Block Diagram ...
Page 25: ...24 Circuit Diagram Main ...
Page 26: ...25 Circuit Diagram Front ...