Daewoo Rautz NC-8008EB, Service Manual, Page: 17 / 50

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Trouble Shooting Guide
Start
7-2. MECHA CONTROL(Loading) Abnormal
OK
Data Input of
IC501 is OK?
No
Yes
Check Connection
between Front and CD
Control Abnormal of Disc Loading
No
Yes
Replace Front PCB Ass'y
Check data waveform of VFD_DATA/STB
/CLK/DO
VFD Data is OK?
Output of
IC506 is OK?
No
Yes
Replace IC506
No
Yes Check Power Supply Circuit
Supplied Power
is OK?
No
Yes Check Data between IC501
Interface Data is OK?