6. Trouble Shooting Flow Chart
6.1. NO VOICE
TV
Check I134 Pin3,13
has output signal?
Replace I134
AV,S-VIDEO,YPbPr
No
Check I106 has I2S
signal output to I145?
No
Yes
Yes
Check I135 is
defective?
Replace I135
Yes
Check I136 is
defective?
Replace I136
Yes
Check Pin37 of I145 is
high?
Check Earphone
circuit
Yes
Check I145 is
defective?
Replace I145
Yes
Check Speaker Wire
No
Replace I106
No
Yes
No
Yes
No
Check I804 Pin21 has
output signal?
Replace I804
ViewSonic Corporation
Confidential - Do Not Copy
N3752w-1M
48
Summary of Contents for N3752w-1M
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Page 83: ...9 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N3752w 1M 80...
Page 84: ...9 3 CON PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N3752w 1M 81...
Page 85: ...9 4 CON PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N3752w 1M 82...
Page 86: ...9 5 IR PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N3752w 1M 83...
Page 87: ...9 6 IR PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N3752w 1M 84...
Page 89: ...ViewSonic Corporation Confidential Do Not Copy N3752w 1M 86...