8399 N/B Maintenance
8.11 Audio Failure(1)There is trouble with the sound from speaker or completely no sound.Audio Failure
1.Check if speaker cables are connected properly.
2. Make sure all the drivers are installed |
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Secret |
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| Document |
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properly. |
| Troubl shooting |
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| MiTac |
| Check following parts and signals: | ||
OK? |
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| Parts: |
| Signals: | |
| Confidential | R200 | L50 | AC97_SDOUT | ||
Test | Yes |
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| U10 | C148 | +AVDDAD |
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| Correct it. |
| U14 | R403 | VREF_OUT |
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| U26 | U11 | MIC1 |
No |
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| U13 | L52 | MIC2 |
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| J13 | R205 | CDROM_LEFT | |
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| J21 | Q13 | CDROM_RIGHT |
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| L45 | C235 | CDROM_ROMM |
Try another known good speaker, | Replace | L47 | J12 | AUDIO_14M | ||
| L48 | L39 | AC97_SYNC | |||
| Motherboard | L43 | L41 | AC97_SDIN | ||
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| R191 | L51 | AC97_RST# |
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| R194 | L53 | AC97_BITCLK |
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| R213 | . | SB_SPKR |
Yes | Replace the |
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| L62 | L56 | CARDSPK# | |||
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OK? |
| faulty parts. |
| R172 |
| AOUT_L |
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| R173 |
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No
AOUT_R
AC_GPI3 TP534
+5V_AMP SHUTDOWN SPKR_ROUT+ SPKR_ROUT- SPKR_LOUT+ SPKR_LOUT-
HP_SENSE
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