22
7.3.
No Sound at USB selector Only
Press Power Button of Unit
or Remote Control to Turn
ON the Unit
No
Yes
No
Yes
No
Check SOC
IC1001
(Pin 81, 82, 83,
84)
Change series
resistors R1011,
R1012, R1023,
R1014, or
IC1001
Select USB A or USB B selector,
connect USB device, play source.
No Sound comes out from speaker
End
Yes
Yes
Check
IC9002/IC9003
pin 1= 5V?
(pin 21)
Check IC4001
PWM output signal
(pin 27-34)
Change:
IC9002 (USB-A)
IC9003 (USB-B)
Change
DSP
IC4001
1
2
Check IC1202
pin28(USB-A) or
pin27(USB-B)
High (3.3V)
±
OK
3
Change:
RX1207
4
No
Summary of Contents for SA-MAX3500PU
Page 11: ...11 5 Location of Controls and Components 5 1 Remote Control Key Button Operation ...
Page 19: ...19 Check Point SMPS PCB Check Point Main PCB 4 5 1 1 2 3 1 7 6 ...
Page 21: ...21 Check Point Main PCB 6 1 2 ...
Page 23: ...23 Check Point Main PCB 1 2 4 3 ...
Page 25: ...25 Check Point MIC pcb Check Point Main PCB 6 2 IC140 IC140 CN140 JK140 JK140 C140 ...
Page 27: ...27 Check Point Tuner PCB Check Point Main PCB Antenna CN5 IC5 SO 1 2 3 4 5 6 7 ...
Page 29: ...29 Check Point Tuner PCB Check Point Main PCB Antenna CN5 IC5 SO 1 2 3 4 5 6 7 ...
Page 31: ...31 Check Point Main PCB 1 3 4 5 6 7 ...
Page 33: ...33 Check Point Main PCB 1 3 4 5 6 7 ...
Page 35: ...35 Check Point Main PCB 2 3 1 ...
Page 46: ...46 ...
Page 56: ...56 ...
Page 82: ...82 ...
Page 104: ...104 MMH1803 ...