5-4 Trouble shooting Chart
No audio output
refer to <NO +34V output>
Check 34v voltage on
AMP board is normal
Check the signals of I2S
(U20 Pin
34,35,36,42,43,44)
Replace main board
Yes
No audio output
Yes
NO
NO
Check the I2S signals
(U481 Pin 7,8,9,10,11,20)
Yes
Check the PCB Layout
NO
Yes
Check the PWM signals
(U481
Replace U481
NO
Replace the speaker
Check the AMP IC Output
(U483 U484)
NO
Replace U483,U484
Yes
Yes
Summary of Contents for HTD3510/98
Page 3: ...1 3 ...
Page 4: ...1 4 ...
Page 5: ...1 5 ...
Page 6: ...1 6 ...
Page 7: ...1 7 ...
Page 8: ...1 8 ...
Page 9: ...DFU Instrutions 2 1 ...
Page 10: ...2 2 ...
Page 11: ...2 3 ...
Page 12: ...2 4 ...
Page 13: ...2 5 ...
Page 14: ...2 6 ...
Page 15: ...2 7 ...
Page 16: ...2 8 ...
Page 17: ...Detailed information please refer to the model set Figure 1 ...
Page 19: ...Software Upgrade Preference 4 1 ...
Page 29: ......
Page 30: ... ...
Page 31: ......
Page 32: ......
Page 33: ...TOP TOP ...
Page 34: ......
Page 35: ......
Page 36: ......
Page 37: ......
Page 38: ......
Page 39: ......
Page 40: ......
Page 41: ......
Page 42: ......
Page 43: ...8 1 ...
Page 44: ...8 2 ...
Page 45: ...Block Diagram for main IC SPHE8203R 9 1 ...
Page 46: ...9 2 ...
Page 47: ...9 3 ...
Page 48: ...9 4 ...
Page 49: ......
Page 50: ......
Page 51: ......
Page 52: ...Initial Release for HTD3510 12 Initial Release for HTD3510 51 98 93 X78 55 77 G94 ...
