No Video (1.Speaker 2.Headphone_out, 3.Optical)
*Refer to the next page to check the lacation such a CN201 or IC1001 SVC Manual mentioned.
Symptom Video is normal, but there is no sound.•
Major
checkpoints
When the speaker connects are disconnected or damaged.•
When the sound processing part of the Main board is not Functioning.•
Speaker defect.•
Diagnostics
Check the source and check the
connection of sound cable (Comp,
SCART, HDMI) ?
No
Input the sound source properly.
Yes
Check the signal at input of Main board?
No
Check CN501, CN502, CN601,2,3.
Change the Main Board.
Yes
1
Check the DATA between the Audio IC’s ?
Pin #4 of IC301 : LR_clk
Pin #3 of IC301 : I2S_DATA
No
Check IC301.
Change the Main Board.
Yes
2
1. Check the Speaker sound data at
CN301
2. Check the Monitor out sound data at
CN302
3. Does the SDIF OUT sound data
appear at ? OP301
No
Check IC301.
Change the Main Board.
Yes
Replace speaker ?
No
Please, Contact Tech support.
Caution Make sure to disconnect the power before working on the Power board.
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