
8. Troubleshooting
8-1 Power Malfunction
Main PCB
µ
-com VDD(5V)
normal?
UIC1 pin no. 18,47,90
Top PCB ARIC1(K7805) IN: 10V
Input voltage normal?
Main PCB PWR-SENS
voltage normal ?
(pin no. 27;5V)
Main PCB
Does UX1(6MHz)
oscillate?
Main PCB
When the power is
ON 'H' displays
at pin no. 5 ?(5V)
Replace ARIC1
Check the Power PCB ;
ARD 1, 2, 3, 4 (IN5392)
AF2 (1.25A Fuse)
Connect Top PCB and Main PCB.
Check the connector Main PCB.
Wafer ucw3
No
No
Check the Main PCB
ARZD1, ARR 7, ARR6
ARD5, ARC5, 12
No
No
No
No
Yes
Yes
Yes
Yes
Replace
µ
-com.
Check the Power PCB : P/T, FUSE
Yes
Samsung Electronics
8-1
Содержание MCD-M500
Страница 2: ...ELECTRONICS Samsung Electronics Co Ltd SEP 2000 Printed in Korea Code no AH68 00073X ...
Страница 12: ...Samsung Electronics 2 1 2 Exploded View and Parts List 2 1 Total Exploded N C10 ...
Страница 14: ...Samsung Electronics 2 3 2 2 Total Exploded N CP50 70 ...
Страница 32: ...Samsung Electronics 4 1 4 Block Diagram 4 1 Main ...
Страница 33: ...4 2 Samsung Electronics 4 2 MCD Part ...
Страница 34: ...Samsung Electronics 5 1 5 Printed Circuit Board Diagram 5 1 MAIN ...
Страница 35: ...5 2 Samsung Electronics 5 2 FRONT LCD TOP MOTOR LED ...
Страница 36: ...Samsung Electronics 5 3 5 3 MCD Parts 5 3 1 MAIN TOP VIEW 5 3 2 SUB TOP VIEW BOTTOM VIEW BOTTOM VIEW ...
Страница 37: ...5 4 Samsung Electronics 5 4 POWER ...
Страница 38: ...Samsung Electronics 6 1 6 Wiring Diagram ...
Страница 39: ...Samsung Electronics 7 1 7 Schematic Diagram 7 1 MCD Part ...
Страница 40: ...7 2 Samsung Electronics 7 2 MAIN Part ...
Страница 41: ...Samsung Electronics 7 3 7 3 FRONT ...