Samsung NA-C10 Service Manual page 10

8-7 MCD Part
PLAY KEY INPUT
DOES LCD TURN ON
IS CD LSI VCC=3V
DOES SLED MOVE TO INNER
IS FOCUS SEARCH DONE
PROPERLY
NEXT PAGE
Samsung Electronics
No
Yes
No
Yes
No
Yes
No
Yes
CHECK MICOM VCC(IC 9533 outpout) : 3.3V
CHECK HOLD SW/DOOR SW : HOLD SW "L"
CHECK CON11, CON12, CONNECTION
CHECK MICOM RESET "L"
(When press the play Button)
CHECK IC 2020 PIN NO 5, Q106 Collector(3V)
CHECK IC 6509 PIN NO 14("L"), 22("L")
CHECK IC 7327/ IC6509 VCC/CON102 CONNECTION
CHECK IC 7327 PIN NO 15, 16 Resonator Signal(16.93Mhz)
CHECK MICOM COMMAND PORT, PIN NO 38, 39, 40, 41, 42
CHECK IC 7327 PIN NO 56 "Ω"Port/ IC 6509 PIN NO37
CHECK THE LIMIT SWITCH IC 7327 PIN NO 63, 29, 31
CHECK IC 7327 PIN NO 55 "F0"
CHECK IC 6509 PIN NO 40, 3, 5
CON101 CONNECTION
Troubleshooting
DOOR SW "L"
"H" PIN NO 25 KEY input
8-7