Samsung NA-C10 Service Manual page 8

8-5 CD Malfunction
Check main PCB µ-com
connector pin No.
6,7,8,99
6 : Data 8 : ACK
7 : CLK
Yes
Check Main PCB
µ-com Pin No. 86
LOW : YES
Yes
Check CD B+
CQ1, ARQ5
Yes
MY CD
Samsung Electronics
No
CCW1 79, JACK PCB 9P
99 : RZQ
No
Check the Leaf S/W
No
Check the Top PCB
Yes
Check Top PCB
ARQ1, ARZD1
Troubleshooting
No
Check the Top PCB
CCW4, CCW1, JACK PCB
8-5