
-15-
NO
NO
•Check the connection of IC301 pin2.
•Replace the IC301 (OTI-9790)
NO
•Replace the IC207 (NJM3404).
NO
•Check the connection of IC320 pin98.
•Replace the IC320 (MICOM)
NO
•Check the connection of IC320 pin94.
•Replace the IC320 (MICOM)
•Check the connection of IC202 pin19.
•Replace the IC501 (BA6664FM)
•Check the spindle Connector
(PN202)
•Replace the Spindle Motor.
NO
Spindle operation is abnormal.
Is there Spindle
control signal input?
(IC202 pin 22)
YES
YES
YES
Is there Spindle
control signal output?
(IC207 pin 7)
YES
Is there DMO signal input?
(IC207 pin5)
Is there Spindle
drive voltage output?
(IC202 pin 2,4,7)
Is SPNON signal “H”?
(IC202 pin 23)
YES
YES
Is SBRK signal “L”?
(IC202 pin 18)
NO
Is there
a SPNFG signal input?
(IC320 pin 95, IC301
pin 7)
YES
Replace the IC206 (BU4053).
OK
Содержание C660
Страница 8: ... 8 IC501 2 8 IC502 ...
Страница 36: ... 36 2 CD PLAY CIRCUIT DIAGRAM ...
Страница 37: ... 37 3 CD RECORD 1 CIRCUIT DIAGRAM ...
Страница 38: ... 38 4 CD RECORD 2 CIRCUIT DIAGRAM ...
Страница 39: ... 39 5 CD RECORD 3 CIRCUIT DIAGRAM ...
Страница 40: ... 40 6 I O CIRCUIT DIAGRAM ...
Страница 41: ... 41 7 FRONT CIRCUIT DIAGRAM ...
Страница 42: ... 42 PRINTED CIRCUIT BOARD DIAGRAMS 1 CD PLAY TOP P C BOARD 2 CD PLAY BOTTOM P C BOARD ...
Страница 43: ... 43 3 CD RECORD TOP P C BOARD 4 CD RECORD BOTTOM P C BOARD ...
Страница 44: ... 44 5 I O TOP P C BOARD LOCATION GUIDE 6 I O BOTTOM P C BOARD LOCATION GUIDE ...
Страница 45: ... 45 7 FRONT P C BOARD LOCATION GUIDE ...
Страница 46: ... 46 8 POWER P C BOARD 9 H P P C BOARD ...