Panasonic SC-CMAX5GS

19
DAMP
Troubleshoong
Check Spekaer Output
JK3503 : Sub Woofer Ch
JK3502 : Mid/Hi Ch
+ Terminal to GND
- Terminal to GND
Result : +36V (VDD)
Change D-AMP IC
SW : IC3101
Hi/Mid : IC3301
Result : +18V (1/2
VDD)
Check D-AMP IC
SW : IC3301
Hi/Mid : IC3301
PWM I F
PWM Output
(0V to PVDD)
DC 1/2 PVDD
㪠
㪠㪚㪊㪊㪇㪈
㪠㪚㪊㪈㪇㪈
PWM
I
nput
F
rom
From IC4001
Check D-AMP IC
SW : IC3101
Hi/Mid : IC3301
Supply
PVDD +36V (Pin : 29,30,31,36,37,38)
VDD +3.3V (Pin : 2)
Check PWM Input
Pin 5,6
Pin 14,15 (IC 3101 Only)
PWM Data Square wave
(0-3.3V )
Check PWM Output Before Inductor
Pin 27,28,32,35,39,40
PWM Data Square wave
(0-36V/ PVDD)
+
-