No Sound (1.Speaker 2.Monitor_Out 3.Optical)_Nt14U - Samsung UN HU6900F Series Service Manual

4. Troubleshooting

4-2-7. No Sound (1.Speaker 2.Monitor_out 3.Optical)_NT14U

Note
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.
• When the speaker connectors are disconnected or damaged.
Major
• When the sound processing part of the Main Board is not functioning.
checkpoints
• Speaker defect.
Check the source and check the
Check the signal at input of Main board?
Check the DATA between the Audio IC's ?
-
1
-
-
Diagnostics
1. Check the Speaker sound data at ?
-
2. Check the Monitor out sound data at ?
2
-
3. Does the SODIF OUT sound data
appear at ?
-
Caution Make sure to disconnect the power before working on the IP Board.
4-22
All manuals and user guides at all-guidesbox.com
connection of sound cable ?
COMP
Yes
AV, COMP L/R : R520
Yes
Pin #15 of IC500 : B clk
Pin #20 of IC500 : LR clk
Pin #23,#24 of IC500 : I2C_SDA/
SCL
Yes
CN400
CN2101_IBR
OP400
Yes
Replace speaker ?
No Input the sound source properly.
Check CN502.
No
Change the Main Ass'y.
Check IC500.
No
Change the Main Ass'y.
Check IC500.
No
Change the Main Ass'y.
No Please, Contact Tech support.