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4-22
4. Troubleshooting
4-1-8. No Sound
Symptom
No audio.
-
Major
checkpoints
Check your audio level setting.
Check your internal mute setting.
Check your source content.
Check all connections.
-
-
-
-
Diagnostics
40”
52”
No
Check CN707,CN805,CN704,CN904
Change the Main PCB
40” : BN94-02945D
52” : BN94-02945E
No
Does the DC B3.3V, B12V
appear at TP - B3.3V, B12V?
Check the source and
check the connection of sound cable
(Comp/PC/DVI to HDMI)?
Change the Main PCB
40” : BN94-02945D
52” : BN94-02945E
No
Check IC903 (Audio CODEC)
Change the Main PCB
40” : BN94-02945D
52” : BN94-02945E
No
Does the I2C data appear at R433?
Check IC201 (Saturn4)
Check IC903 (Sound AMP)
Change the Main PCB
40” : BN94-02945D
52” : BN94-02945E
No
Does the sound data appear at
TP - L-, L+, R-, R+?
No
Please, Contact Tech support
Replace speaker
40” : BN96-09463C
52” : BN96-09463D
Does the sound data appear at
TP-COMSR,COMSL,V2SL,V2SR
(AV1 R/L, AV2 R/L)
TP-COMSR,COMSL(Comp R/L)
TP-DSR,DSL(DVI R/L)
TP-915, 916(PC R/L)?
Yes
Yes
Yes
Yes
Input the sound source properly.
Yes
6
7
Caution
Make sure to disconnect the power before working on the IP board.
Содержание N64D
Страница 62: ...4 3 4 Troubleshooting L1 B13V B5V B12V B5V 1 9V B3 3V B9V...
Страница 64: ...4 5 4 Troubleshooting Pin 16 17 Pin 34 35 TP67 TP69 TP71 TP72 TP70...
Страница 65: ...4 6 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output...
Страница 67: ...4 8 4 Troubleshooting Pin 16 17 Pin 34 35 Pin 12 Pin 7...
Страница 68: ...4 9 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output...
Страница 70: ...4 11 4 Troubleshooting Pin 16 Pin 17 Pin 2 Pin 4 Pin 8...
Страница 71: ...4 12 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output...
Страница 73: ...4 14 4 Troubleshooting Pin 16 17 Pin 34 35 Pin 2 Pin 4...
Страница 74: ...4 15 4 Troubleshooting WAVEFORMS 2 LVDS output...
Страница 76: ...4 17 4 Troubleshooting Pin 16 17 Pin 34 35 V3CVBS COMY...
Страница 77: ...4 18 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output...
Страница 79: ...4 20 4 Troubleshooting Pin 16 17 Pin 34 35 COMY COMPB COMPC...
Страница 80: ...4 21 4 Troubleshooting WAVEFORMS 5 Compnent_Y Gray scale Pb Pr Color bar 2 LVDS output...
Страница 82: ...4 23 4 Troubleshooting R416 B12V COMSL COMSR V2SR V2SL TP_L L R R DSL DSR TP_915 TP_916 B3 3V...
Страница 83: ...4 24 4 Troubleshooting WAVEFORMS 6 I2C Data 7 Speaker out...
Страница 119: ...6 6 6 Wiring Diagram Memo...