Samsung UE D61 S Series, Service Manual

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4-24
4. Troubleshooting
No Sound (1.Speaker 2.Monitor_out, 3.Optical)
„
Genoa-S
N
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
Video is normal but there is no sound.
-
Major
checkpoints
When the speaker connectors are disconnected or damaged.
-
When the sound processing part of the Main Board is not functioning.
-
Speaker defect.
-
Caution Make sure to disconnect the power before working on the PD board.
Diagnostics
Check CN501, CN503_EU, CN402.
Change the Main Assy.
Check IC303, IC1001.
Change the Main Assy.
Check IC303, IC1001.
Change the Main Assy.
No
No
No
Yes
Yes
Yes
Check the source and check the
connection of sound cable
(Comp/PC/DVI to HDMI) ?
Replace speaker ?
Input the sound source properly.
Please, Contact Tech support.
No
No
Yes
Check the signal at input of Main board?
COMP1 R : COM_S_R / L : COM_S_L
AV, R: SC1_AV2_SR_IN/ L: SC1_
AV2_SL_IN PC, DVI R : PC_S_R / L :
PC_S_L
1. Check the Speaker sound data at
the pin of CN301?
#1 : R+ / #2 : R- / #3 : L+ / #4 : L-
2. Check the Headphone/Monitor out
sound data at ?
tp HP_R
tp HP_L
3. Does the SPDIF OUT sound data
Check the I2C DATA between the Audio
IC’s ?
Pin #28 of IC303 : MCLK
Pin #32 of IC303 : Data
2
1
Caution Make sure to disconnect the power before working on the IP board.