Samsung UN FH6200F Series, Руководство по обслуживанию, Страница: 46 / 74

4-2-7. No Sound (1. Speaker, 2. Monitor_out, 3. Optical)
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. •
Diagnostics
Check the source and check the
connection of sound cable ?
Comp, PC/DVI to HDMI
No Input the sound source properly.
Yes
Check the signal at input of Main Board?
AV, COMP R : R527 / L : R526
PC R : R422 / L : R421
No
Check CN502, CN402.
Change the Main Ass’y.
Yes
1
Check the DATA between the Audio IC’s ?
Pin #15 of IC301 : Mclk
Pin #20 of IC301 : LRclk
Pin #22, #23 of IC301 : I2C_DA/CL
No
Check IC301.
Change the Main Ass’y.
Yes
2
1. Check the Speaker sound data appear
at ? CN301
2. Check the Monitor out sound data
appear at ? CN302
3. Does the SODIF OUT sound data
appear at ? CN303
No
Check IC301.
Change the Main Ass’y.
Yes
Replace speaker ?
No
Please, Contact Tech support.
Caution Make sure to disconnect the power before working on the IP board.
4-22
4. Troubleshooting