20
IC1001
IC4001
BT
USB
AUX
IC3001
IC3001
IC3101
IC3101
IC3301
IC3301
IC4001
Troubleshooting
Check IC Supply (3.3V)
: Pin 22,40
(15V) : pin 25 ,36
Check Xtal Operation
X4001 (24 MHz)
Check Command From SoC
Pin 4,5
Check Audio Input
Pin : 6 (Mic )
Pin : 7 (AUX - Non GS/JPN)
Pin : 8 (USB/BT)
Pin : 9 (44.1kHz/48 kHz)
Pin :10 (2.8MHz / 3.07 MHz)
Digital Data Square wave
(0-3.3V )
Check Audio Output to DAMP
Pin : 33&34 (PWM SW )
Pin : 31&32 (PWM MID)
Pin : 26&27 (PWM USB/BT)
Digital Data Square wave
(0-3.3V)
5
4
IC1001
Troubleshooting
Check IC Supply
1.5V & 3.3V
Check Reset Pin 1
High : OK
Low : NG
Check Xtal Operation
X1002 (32 KHz)
IC3201
IC3201
Содержание SA-MAX4000PN
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