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8.6 Audio Function Failure
Symptom:
No sound from speaker after audio function is installed.
VCC_AUD
U14B
P4
3
5
SSP_SFRM
TC7W14FU
CODEC_RESET#
U10
SN74LVCH16374A
Extend GPIO
VCC_AUD
U14A
CLK_SSP
U3
1
TC74W14
Intel
SSP_TXD
StrongARM®
SSP_RXD
SA1110
VCC_3VSB
Microprocessor
BT_RECORD#
SFRM_C
RXD_C
SCLK_C
TXD_C
UCB_IRQ
Barracuda PDA Maintenance
VCC_AUD
VCC_AUD
U15
P8
2
5
UDA_WS
D
Q
8
VCC
1
CLK
4
GND
3
#Q
TC74W74
U13
P7
UDA1341TS
Audio CODEC
AMP_PW_EN#
CLK_UCB_BIT
7
R369
0
L3_I2C_SDA
R358
L3_I2C_SCL
SW2
100K
L3_I2C_MODE
2
1
4
3
P11
U42
UCB1300BE
Modem/Audio
EXT _IN_L
C39
10U
EXT_IN_R
C40
10U
C55
MIC_IN_L
C54
R370
47U
6.3V
4.7K
MIC_IN
C242
C50
0.1U
MIC_IN_R
0.01U
16V
6.3V
47U
C58
LOUT_R
R58
20K
5
-INA1
0.33U
9
16V
-INA2
2.2U
C51
7
+INA
13
C59
+INB
LOUT_L
R61
20K
15
-INB1
11
0.33U
16V
-INB2
20
HP-IN
R260
10K
10
MUX CNTRL
14
BYPASS
23
SHUTDOWN
1
NC
LM4867LQ
VCC3
WHEEL_DET
R357
10K/1%
0.1%
R308
R309
R310
0
4.02K/1%
20K
0.1%
WHEEL_DOWN#
0.1%
0.1%
WHEEL_UP#
WHEEL_ENTER#
VCC_AUD
R53
P8
2.2K
MIC
C236
+
47U
6.3V
SPAK_MO+
R56
20K
4
C214
C213
-OUTA
2
U16
+OUTA
180P
180P
16V
16
16V
-OUTB
18
+OUTB
C61
C210
C211
3
VDD0
17
VDD1
0.1U
0.01U
6
50V
10U
16V
GND0
8
+80-20%
GND1
12
GND2
19
GND3
21
GND4
22
GND5
24
GND6
25
GND7
R62
20K
AMP_PW_EN#
P9
JR1
J15
P6
External
Rocketeer Conn
L38
0
P8
Internal Speaker
C248
180P
4
5
J4
L23
L22
Q41
3
2
1
IRLML6402
P8
D
S
G
L24
L26
1000Z/100M
1000Z/100M
External Speaker
VCC3
133
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