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4. Troubleshooting
No Sound (1.Speaker 2.Monitor_out, 3.Optical)
„
N Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
-
-
Major
-
checkpoints
-
Caution
Make sure to disconnect the power before working on the PD board.
1
2
Diagnostics
Caution
Make sure to disconnect the power before working on the IP board.
4-24
Video is normal but there is no sound..
When the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect..
Check the source and check the
connection of sound cable
(Comp/PC/DVI to HDMI) ?
Yes
Check the signal at input of Main board?
COMP1 R : C414_L : C412
AV, R : C506_L : C508
PC, DVI R : C409_L : C410
Yes
Check the I2C DATA between
the Audio IC's ?
Pin #1 of IC302 : MCLK
Pin #5 of IC302 : Data
Yes
1. Check the Speaker sound data at ?
tp R+/-
tp L+/-
2. Check the Monitor out sound data at ?
tp monitor_R
tp monitor_L
3. Does the SODIF OUT sound data
appear at ?
TP SPDIF_OUT
4. Check the Woofer sound data at ?
tp WF+
tp WF-
Yes
Replace speaker ?
Genoa-P
No
Input the sound source properly.
Check CN404, CN402, CN506_UBA.
No
Change the Main Assy.
Check IC302, IC1202.
No
Change the Main Assy.
No
Check IC302, IC1202.
Change the Main Assy.
No
Please, Contact Tech support.
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