107
M722 N/B MAINTENANCE
M722 N/B MAINTENANCE
X3
24.576MHZ
2
3
XTL/IN
XTLIN/OUT
36
U510
U510
BANISTER
BANISTER
82440MX
82440MX
U25
U25
CS4299
CS4299
CODEC
CODEC
AOUT_R
AOUT_L
35
AC97_RST#
AC97_SDOUT
AC97_SDIN0
AC97_SYNC
AC97_BITCLK
11
5
8
10
6
R611
AC’97
CODEC LINK
7.9 AUDIO FAILURE
No sound from speaker after audio driver is installed.
SPK_OFF
AUDIO OUT
R560
19
10
+5V_AMP
+5V_AMP
22
Drive
IC
LED
5
4
2
3
1
8
9
7
13
15
+5V_AMP
+5V
L520
L519
L515
L516
L36
L514
L32
R617
R232
J10
+3V
R609
Q34
R231
Q35
L33
+3V
C582
C570
24
5
U24
LM4834
SPEAKER-
J9
27
2
DEVICE DECT#
DECT HP#/OPT
HP SENSE
Q504
+5V_AMP
16
R667
VR501
C602
L512
R606
L34
R622
C243
C237
SPIDFOUT