Acer 390 Series Service Manual page 195

+5VA
VDDA
1
C34 C83 C57
2 ST4D7U SC1KP SCD1U
C274
18 LINE_IN_R
SC1U25V5MY
C79
18 LINE_IN_L
SC1U25V5MY
R64 C71
1 2
18 RDATA_RACE
10KR3 SCD22U16V3ZY
C72
C86
SC3300P50V3KX
SCD22U16V3ZY
S
B
F
L
1
T
AVSS
VDDA 2 R
AVDD
3
GP0
4
GP1
5
GP2
6
GP3
7
GP4
8
GP5
9
GP6
10
GP7
11
DVSS
12
3 RSTDRV RESET
13
3 IOW# IOW#
14
3 IOR# IOR#
VDDD 15
DVDD
AEN 16
AEN
SA11 17
A11
SA10 18
A10
SA9 19
A9
20
3,4,21 IRQ3 IRQ3
21
3,4,21 IRQ5 IRQ5
22
3,4 IRQ7 IRQ7
23
3,4 IRQ9 IRQ9
24
3,4,21 IRQ10 IRQ10
25
3,4 IRQ11 IRQ11
D
R
Q
0
3,4 DRQ0
3,14 DACK#0
3,4 DRQ1
3,14 DACK#1
3,4 DRQ7
3,14 DACK#7
3,14,19,21 SD[0..7]
+5V
1
RZ12
100KR3
8 AUDIO14M
U28 2
1 8 R238
X1 X2
VDDD 2 7 1
VDD PD#
3 6
GND 33.9M
4 5 33R3
16.9M 24.6M
C314 R237
SCD1U MK1422 1
CX27 33R3
CX25
SCD1U
CX26
SC27P
SC27P
+5V
PIN 3 PIN 57 PIN 80
C278 C73 C293 C292
SC1U25V5MY SC1KP SCD1U SCD1U
C101 R69
1
SC1U25V5MY 1 10KR3
C100
RX23
SC3300P50V3KX
1KR3
2
C84
1
SC1U25V5MY
1
C85
RX24
SC3300P50V3KX
1KR3
2
C287
OUTL
SOUND_L
SC1U25V5MY
C288
OUTR
SOUND_R
SC1U25V5MY
C96
SC1U10V5KX
S S S S T T A A M M V V
C95
B B Y Y R R U U I I R R
SC1U10V5KX
F F N N E E X X C N E E V L L C C O O
L L S S C C 2 2 F F D I I D D U U
T T H H R L L R O I D N N _ _ T T
C286
R L L R A E E L R L R
L R
SC1KP
1
0 9 9 9 9 9 9 9 9 9 9 8 8 8 8 8 8 8 8 8 8 7 7 7 7 U20
0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6
VDDD
S S S T T A A M M V V A A L L A A O O V V V V A
B Y Y R R U U I I R R V V I I U U U U O O O O D
F N N E E X X C N E E S D N N X X T T C C C C F
L S S C C 2 2 F F S D E E I I L R I I O O L
T H H R L L R O I L R L R L R R L T
L L R L 75
ADFLTR
74
DVSS
73
SEL0
72
SEL1
71
SEL2
70
MP0
69
MP1
68 SA12
MP2
67 SA13
MP3
66 SA14
MP4
65 SA15
MP5
64
MP6
63
MP7
62
MP8
61
MP9
60 VDDD
DVDD
59
VOLUP#
58
VOLDW#
57 SA0
A0
56 SA1
A1
55 SA2
A2
54
X33O
53 X33I
X33I
52
X24O
51 X24I
D D
X24I
A D A
C D A D C D D D
K R C R K V V V R T
0 Q K Q 3 D D D D D S D D D D A A A A A A S X X
# 1 1 3 # 0 1 2 3 D S 4 5 6 7 8 7 6 5 4 3 S D D
YMF715
2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5
6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
V
S S S S D S S S S S S S S S S
D D D D D D D D D A A A A A A
0 1 2 3 D 4 5 6 7 8 7 6 5 4 3
3 SA[0..15]
X33I
2 C268
MIN
C298
SC10P SC1U10V5KX
2 X24I 1
R230
220KR3
C294
SC10P 2
VDDD
2
CD_AUDL 20
R63
2
CD_AUDR 20
10KR3
18
TRECL
18
TRECR
SYNSHR
SYNSHL
C99
SC1KP SBFLTL
SBFLTR
$ZV_SCLK 11
$ZV_LRCLK 11
$ZV_DATA 11
VOLUP# 3
VOLDWN# 3
VREFO
1
C283 C81
SCD1U 2 ST10U16VBM
VREFI
1
C284 C82
SCD1U 2 ST10U16VBM
+5VA
C256
+6V
SCD1U
U3
1 8
OUT INPUT
2 7
SENSE FB
3 6
SD 5V/TAP
4 5
GND ERROR
C255
LP2951ACM SCD1U
C67 C77
MIC
SCD01U50V3JX SCD1U
C270
SCD01U50V3JX
C58
SC1KP
C266
SC1KP
C59
ALL AUD-GND ARE SIGLE VIA TO GND
SC1KP
C267
SC1KP
+5V
1
R108
100KR3
2 U33
SA12 1
A
SA13 2
B
SA14 3
C
6
G1
4
3 AEN G2A
SA15 5
G2B
8
GND
SSHCT138
G1
1 2
GAP-CLOSE
C254
SCD1U25V5MY
MIC_IN 18
1
R54
7K5R5F
2
R53
1 2 VDDA
7K5R5F
C66
SCD01U50V3JX
1
C70
2 ST10U16VBM
+5V
C137
SCD1U
16
VCC
15 16BIT_AEN
Y0 16BIT_AEN 14,21
14
Y1
13
Y2
12
Y3
11
Y4
10
Y5
9
Y6
7
Y7
ACER TAIPEI TAIWAN R.O.C
AUDIO CHIP YMF715
Title
390 ACERNOTE LIGHT
Size Document Number REV
A2 96183 SD
Date: August 12, 1997 Sheet 17 of 23