Samsung Electronics
9-1
9. Troubleshooting
9-1 Amplifier
9-1-1 Power Malfunction
FRONT PCB
µ
-com VDD(5V)
normal?
UIC1 pins 18,46,72,90
Yes
FRONT PCB
Does UX2(6MHz)
oscillate ?
Yes
Check the UIC1 :
pin 51 Vp (-23.5V)
Replace
µ
-com
Yes
No
FRONT PCB P/OFF-SENSE
voltage normal ?
(pin 92 ; 5.0V)
Check the Main PCB :MCON5
FCW1-WIRE/AD18,AZD3
No
FRONT PCB UIC2(78L05)
OUT: (5V) output
voltage normal
No
No
No
Check the Main PCB
AZD4,6/AZD5 : 25V
normal ?
Replace AZD4,5,6
No
Replace
µ
-com
Yes
Check the connector
FRONT /MAIN PCB(FCW1/FCW2)
Yes
Replace
µ
-com
Yes
Check the AQ2(D882) ?
No
Replace AQ2(TR:D882)
Yes
Check the Fuse
Содержание Wingo S-2450
Страница 2: ...ELECTRONICS Samsung Electronics Co Ltd SEP 2000 Printed in Korea Code no AH68 00036D ...
Страница 14: ...Samsung Electronics 5 1 5 Block Diagram 5 1 Main ...
Страница 16: ...Samsung Electronics 6 1 6 Printed Circuit Board Diagram 6 1 FRONT 6 2 Headphone PCB 6 3 Open Close PCB ...
Страница 17: ...6 2 Samsung Electronics 6 4 Jack PCB 6 5 Motor PCB 6 6 POWER S 2400 2450 ...
Страница 18: ...Samsung Electronics 6 3 6 7 MAIN ...
Страница 19: ...6 4 Samsung Electronics 6 8 CD 6 9 MP3 Charge MP3 Jack ...
Страница 20: ...Samsung Electronics 6 5 6 10 Adapter Batt Sense 6 11 ENCODER ...
Страница 21: ...ENCODER PCB DIAGRAM only S2450 Model ...
Страница 22: ...ENCODER PCB DIAGRAM only S2450 Model ...
Страница 23: ...Samsung Electronics 7 1 7 Wiring Diagram Optical Output Option NCW100 ...
Страница 24: ...Samsung Electronics 8 1 8 Schematic Diagram 8 1 Main Part ...
Страница 25: ...8 2 Samsung Electronics 8 2 CD ...
Страница 26: ...Samsung Electronics 8 3 8 3 ENCODER ...
Страница 27: ...ENCODER SCHEMATIC DIAGRAM only S2450 Model ...
Страница 28: ...ENCODER SCHEMATIC DIAGRAM only S2450 Model ...
Страница 41: ...Samsung Electronics 10 5 IC Internal Diagram Audio ICs BA3121 BA3121F BA3121N FBlock diagrams ...
Страница 47: ...Samsung Electronics 10 11 IC Internal Diagram Audio ICs BU1923 BU1923F FBlock diagram ...
Страница 56: ...10 20 Samsung Electronics IC Internal Diagram 10 11 TDA7440D JIC1 ...