Intel 815 - Page 207

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
INFRARED
POWER SW.
H.D. LED
POWER LED
KEY LOCK
SPEAKER
FAN HEADERS
On-Board LED indicates th Standby
Well is on to prevent Hot-Swapping
Memory
NO STUFF.
FOR TEST
ONLY
NO STUFF.
FOR TEST
ONLY
System
SPEAKER CIRCUIT
INTEL(R) 82815 CHIPSET CUSTOMER REFERENCE BOARD
SYSTEM, PART 1
40
1.0
3-26-01
34
Platform Apps Engineering
1900 Prairie City Road
Folsom, CA 95630
REV.
R
Last Revision Date:
Sheet:
of
Title:
int
e
l
V3SBLED
GP26LEDGP23LED
SPKR_NEG
PWRLED
R_IRTX
PBTN_IN
FP_PD
R_SPKRINSPKR_IN
SPKR_Q1GSPKR
IDE_ACTIVE
TACH115
PWM115
TACH215
PWM215
GPIO23_FPLED13
ICH_SPKR13
AC97SPKR26,27
KEYLOCK#15
IDEACTS#18
IDEACTP#18
PWRBTN#13
IRRX15
IRTX15
GPIO26_FPLED 13
VCC3SBY
VCC3SBY VCC3SBY
VCC3SBY
VCC5
VCC5
VCC3_3VCC3_3
VCC5
VCC3SBY
VCC3_3VCC5VCC5
VCC3SBY
VCC12VCC12
VCC12VCC12
VCC3_3
VCC3_3
CR7
LED
SP1
SPEAKER
J28
1
2
3
Q17
2N3904
CRb4
LED
CRa4
LED
JP28
1
2
3
J26
1
2
3
J4
1
2
3
J27
1
2
3
R96
330
12
R90
4.7K
12
R275
330
12
RP62
4.7K
1 2 3 4 5
6 7 8
R283
10K
12
R99
10K
12
R124
10K
12
R97
330
12
R270
4.7K
1 2
R269
82
1 2
R272
100K
12
R280
1M
12
R290
68
1 2
R289
68
1 2
R291
2.2K
1 2
R279
0K
1 2
C426
0.1UF
12
C396
1.0UF
12
R281
470
1 2
R282
220
1 2
C394
0.1UF
12
C264
0.1UF
12
C247
470PF
12
C400
470PF
12
+
C399
10UF 16V
12
C391
0.1UF
12
C393
0.1UF
12
C392
0.1UF
12
U8B
SN74LVC07A
4
147
3
U11A
SN74LVC07A
2
147
1
J18
FNT_PNL_CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
SW2
PBSWITCH
U11B
SN74LVC07A
4
147
3
U8C
SN74LVC07A
6
147
5