21
DAMP
Troubleshooting
Check Spekaer Output
JK3500
+ Terminal to GND
- Terminal to GND
Result : +36V (VDD)
Change D-AMP IC
Result : +18V (1/2
VDD)
Check D-AMP IC
IC3001
IC3001
IC3101
IC3101
IC3201
IC3201
IC3301
IC3301
PWM Input From
From IC4001
Check D-AMP IC
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)
PWM Output
(0V to PVDD)
DC 1/2 PVDD
+
-
RCh - SW : IC3001
Rch - Hi/Mid : IC3101
LCh - SW
: IC3301
Lch - Hi/Mid : IC3201
Summary of Contents for SA-MAX4000
Page 11: ...11 5 Location of Controls and Components 5 1 Remote Control Key Button Operation ...
Page 12: ...12 5 2 Main Unit Key Button Operation ...
Page 18: ...18 ...
Page 25: ...25 8 3 Main Components and P C B Locations ...
Page 38: ...38 ...
Page 48: ...48 ...
Page 50: ...50 ...
Page 74: ...74 ...
Page 80: ...80 ...
Page 97: ...97 MMH1504 ...