Date:
August 7, 1997
Sheet
9
of
23
Size
Document Number
REV
A2
96183
SD
Title
390 ACERNOTE LIGHT
VGA CONTROLLER CHIP 65555 & VRAM
ACER TAIPEI TAIWAN R.O.C
C49
SCD1U
C62
SCD1U
VCC
1
DQ0
2
DQ1
3
DQ2
4
DQ3
5
VCC
6
DQ4
7
DQ5
8
DQ6
9
DQ7
10
N.C
11
N.C
12
N.C
13
N.C
14
WE
15
RAS
16
N.C
17
A0
18
A1
19
A2
20
A3
21
VCC
22
VSS
44
DQ15
43
DQ14
42
DQ13
41
DQ12
40
VSS
39
DQ11
38
DQ10
37
DQ9
36
DQ8
35
N.C
34
N.C
33
N.C
32
LCAS
31
UCAS
30
OE
29
A8
28
A7
27
A6
26
A5
25
A4
24
VSS
23
U4
S256K16-50
$VMAD0
$VMAD1
$VMAD2
$VMAD3
$VMAD4
$VMAD5
$VMAD6
$VMAD7
$VWEA#
$VRAS#0
$VAA0
$VAA1
$VAA2
$VAA3
$VMAD15
$VMAD14
$VMAD13
$VMAD12
$VMAD11
$VMAD10
$VMAD9
$VMAD8
$VCASAH#
$VCASAL#
$VAA4
$VAA5
$VAA6
$VAA7
$VAA8
+3.3V
+3.3V
$VMCD0
$VMCD1
$VMCD2
$VMCD3
$VMCD4
$VMCD5
$VMCD6
$VMCD7
$VMCD8
$VMCD9
$
V
M
A
D
0
$
V
M
A
D
1
$
V
M
A
D
2
$
V
M
A
D
3
$
V
M
A
D
4
$
V
M
A
D
5
$
V
M
A
D
6
$
V
M
A
D
7
$
V
M
A
D
8
$
V
M
A
D
9
$
V
M
A
D
1
0
$
V
M
A
D
1
1
$
V
M
A
D
1
2
$
V
M
A
D
1
3
$
V
M
A
D
1
4
$
V
M
A
D
1
5
$
V
M
B
D
0
$
V
M
B
D
1
$
V
M
B
D
2
$
V
M
B
D
3
$
V
M
B
D
4
$
V
M
B
D
5
$
V
M
B
D
6
$
V
M
B
D
7
$
V
M
B
D
8
$
V
M
B
D
9
$
V
M
B
D
1
0
$
V
M
B
D
1
1
$
V
M
B
D
1
2
$
V
M
B
D
1
3
$
V
M
B
D
1
4
$
V
M
B
D
1
5
2,3,11
2,3,11
2,3,11
2,3,11
2,3,11
2,3,11
2,3,11
1
2
R48
33R3
1
2
3
4
5
6
7
8
RP6
SRN33
1
2
3
4
5
6
7
8
RP9
SRN33
1
2
R88
33R3
IDSEL
G2
FRAME
K2
IRDY
K1
TRDY
K4
DEVSEL
L4
STOP
L1
PAR
M1
C/BE0
P3
C/BE1
M2
C/BE2
K3
C/BE3
F1
RESET
C1
BCLK
D2
RCLK
C3
STNDBY
E4
SERR
L3
PERR
L2
AD0
U2
AD1
T3
AD2
R4
AD3
T2
AD4
U1
AD5
R3
AD6
T1
AD7
R2
AD8
R1
AD9
P2
AD10
N3
AD11
P1
AD12
N2
AD13
M4
AD14
M3
AD15
N1
AD16
J1
AD17
J2
AD18
H1
AD19
J3
AD20
J4
AD21
H2
AD22
G1
AD23
H3
AD24
G3
AD25
F2
AD26
E1
AD27
F3
AD28
D1
AD29
E2
AD30
F4
AD31
E3
RSRVD
Y20
RSRVD
D17
RSRVD
D8
TMS
A1
TCLK
B2
TDI
B1
TDO
C2
TRST
D3
BVCC
H4
BVCC
N4
CVCC
W1
AVCC
U5
DVCC
U8
VVCC
U13
MVCC
N17
MVCC
H17
MVCC
D13
IVCC
W12
IVCC
D9
PVCC
D5
PVCC
C4
SVCC
B3
PGND
B4
PGND
A3
SGND
A2
GND
P4
GND
U14
GND
P17
GND
G17
GND
D14
GND
D7
GND
G4
GND
U7
A
A
0
/
C
F
G
0
D
1
8
A
A
1
/
C
F
G
1
C
1
9
A
A
2
/
C
F
G
2
B
2
0
A
A
3
/
C
F
G
3
C
1
8
A
A
4
/
C
F
G
4
A
2
0
A
A
5
/
C
F
G
5
B
1
9
A
A
6
/
C
F
G
6
A
1
9
A
A
7
/
C
F
G
7
B
1
8
A
A
8
/
C
F
G
8
C
1
7
A
A
9
/
C
F
G
9
D
1
6
M
A
0
/
T
M
0
D
1
0
M
A
1
/
T
M
1
A
1
0
M
A
2
/
C
F
G
1
0
B
1
0
M
A
3
/
C
F
G
1
1
C
1
0
M
A
4
/
C
F
G
1
2
A
9
M
A
5
/
C
F
G
1
3
B
9
M
A
6
/
C
F
G
1
4
A
8
M
A
7
/
C
F
G
1
5
C
9
M
A
8
/
R
M
D
0
B
8
M
A
9
/
R
M
D
1
A
7
M
A
1
0
/
R
M
D
2
C
8
M
A
1
1
/
R
M
D
3
B
7
M
A
1
2
/
R
M
D
4
A
6
M
A
1
3
/
R
M
D
5
C
7
M
A
1
4
/
R
M
D
6
B
6
M
A
1
5
/
R
M
D
7
A
5
M
B
0
/
R
M
A
0
D
1
5
M
B
1
/
R
M
A
1
B
1
6
M
B
2
/
R
M
A
2
A
1
7
M
B
3
/
R
M
A
3
C
1
5
M
B
4
/
R
M
A
4
A
1
6
M
B
5
/
R
M
A
5
B
1
5
M
B
6
/
R
M
A
6
C
1
4
M
B
7
/
R
M
A
7
A
1
5
M
B
8
/
R
M
A
8
B
1
4
M
B
9
/
R
M
A
9
C
1
3
M
B
1
0
/
R
M
A
1
0
A
1
4
M
B
1
1
/
R
M
A
1
1
B
1
3
M
B
1
2
/
R
M
A
1
2
D
1
2
M
B
1
3
/
R
M
A
1
3
C
1
2
M
B
1
4
/
R
M
A
1
4
A
1
3
M
B
1
5
/
R
M
A
1
5
B
1
2
MC1
J17
MC2
H19
MC3
G20
MC4
H18
MC5
G19
MC6
F20
MC7
G18
MC8
F19
MC9
E20
MC10
F18
MC11
D20
MC12
E19
MC13
F17
MC14
E18
MC15
D19
MD0/CA0
R20
MD1/CA1
P19
MD2/CA2
N18
MD3/CA3
P20
MD4/CA4
N19
MD5/CA5
M17
MD6/CA6
M18
MD7/CA7
N20
MD8/CA8
M19
MD9
M20
MD10
L18
MD11/RMA16
L19
MD12/RMA17
L20
MD13
L17
MD14
K17
MD15
K20
MC0
J18
RAS0
C11
RAS1/CRAS
K18
DQMAH
A11
DQMAL
D11
DQMBH
B17
DQMBL
C16
DQMCH
J19
DQMCL
H20
DQMDH
R19
DQMDL
P18
SWE
B11
SCAS
A18
AA10
J20
SCKE
T20
NC/COE
K19
GP0/ACTI
V1
GP1/C32KHZ
T4
DDDA
V3
DDCK
U4
EBKL
U6
SHCLK
Y5
M
V6
LP
Y4
FLM
W5
EVDD
V5
EVEE
W4
RSET
W2
RED
Y3
GREEN
V4
BLUE
W3
HSYNC/CSYNC
U3
VSYNC
V2
VREF
V16
HREF
W17
VCLK
Y18
VRDY
U16
PCLK
V17
SGCLK
C20
SGCKI
E17
MPRI
B5
MGNT
A4
MREQ
C6
VP0
R18
VP1
U20
VP2
T19
VP3
R17
VP4
T18
VP5
U19
VP6
V20
VP7
T17
R
G
N
D
Y
1
A
G
N
D
Y
2
P
0
W
6
P
1
V
7
P
2
Y
6
P
3
W
7
P
4
V
8
P
5
Y
7
P
6
W
8
P
7
U
9
P
8
V
9
P
9
Y
8
P
1
0
W
9
P
1
1
Y
9
P
1
2
V
1
0
P
1
3
W
1
0
P
1
4
Y
1
0
P
1
5
U
1
0
P
1
6
U
1
1
P
1
7
Y
1
1
P
1
8
W
1
1
P
1
9
V
1
1
P
2
0
Y
1
2
P
2
1
Y
1
3
P
2
2
V
1
2
P
2
3
U
1
2
P
2
4
W
1
3
P
2
5
Y
1
4
P
2
6
V
1
3
P
2
7
W
1
4
P
2
8
Y
1
5
P
2
9
V
1
4
P
3
0
W
1
5
P
3
1
Y
1
6
P
3
2
V
1
5
P
3
3
Y
1
7
P
3
4
W
1
6
P
3
5
U
1
5
V
P
1
5
W
1
8
V
P
1
4
Y
1
9
V
P
1
3
V
1
8
V
P
1
2
U
1
7
V
P
1
1
W
1
9
V
P
1
0
W
2
0
V
P
9
V
1
9
V
P
8
U
1
8
N
C
D
6
N
C
C
5
N
C
A
1
2
GND
J9
GND
J10
GND
J11
GND
J12
G
N
D
K
9
G
N
D
K
1
0
G
N
D
K
1
1
GND
K12
G
N
D
L
9
G
N
D
L
1
0
G
N
D
L
1
1
G
N
D
L
1
2
GND
M9
GND
M10
GND
M11
GND
M12
RSRVD
D4
U24
65555-1
1
2
3
4
5
6
7
8
RNZ2 SRN33
$CBE#[0..3]
$PAR
$STOP#
$DEVSEL#
$TRDY#
$IRDY#
$FRAME#
$CBE#0
$CBE#1
$CBE#2
$CBE#3
$AD22
$VAA0
$VAA1
$VAA2
$VAA3
$VAA4
$VAA5
$VAA6
$VAA7
$VAA8
CVCC BYPASS CAP
VVCC BYPASS CAP
BVCC BYPASS CAP
2,11
3
2,3,11
8
8
3
3
C87
SCD1U
C92
SCD1U
C103
SCD1U
C60
SC1KP
C109
SC1KP
C113
SC1KP
C108
SCD1U
C90
SCD1U
C102
SCD1U
C112
SCD1U
C89
SC1KP
1
2
RY1
33R3
1
2
C64
ST10U16VBM
$AD[0..31]
$VGACLK
$PCIRST#
$VGA14M
$SERR#
$PERR#
$STANDBY#
$AD0
$AD1
$AD2
$AD3
$AD4
$AD5
$AD6
$AD7
$AD8
$AD9
$AD10
$AD11
$AD12
$AD13
$AD14
$AD15
$AD16
$AD17
$AD18
$AD19
$AD20
$AD21
$AD22
$AD23
+3.3V
+3.3V
+3.3V
+3.3V
1
2
3
4
5
6
7
8
RP48
SRN33
1
2
3
4
5
6
7
8
RP10
SRN33
1
2
3
4
5
6
7
8
RP47
SRN33
1
2
R74
33R3
1
2
R79 33R3
$VMCD10
$VMCD11
$VMCD12
$VMCD13
$VMCD14
$VMCD15
$VMDD0
$VMDD1
$VMDD2
$VMDD3
$VMDD4
$VMDD5
$VMDD6
$VMDD7
$VMDD8
$VMDD9
$VMDD10
$VMDD11
$VMDD12
$VMDD13
$VMDD14
$VMDD15
$VRAS#0
$VCASAH#
$VCASAL#
$VCASBH#
$VCASBL#
$VCASCH#
$VCASCL#
$VCASDH#
$VCASDL#
C251
SCD1U
C33
SCD1U
C289
SCD1U
C309
SCD1U
VCC
1
DQ0
2
DQ1
3
DQ2
4
DQ3
5
VCC
6
DQ4
7
DQ5
8
DQ6
9
DQ7
10
N.C
11
N.C
12
N.C
13
N.C
14
WE
15
RAS
16
N.C
17
A0
18
A1
19
A2
20
A3
21
VCC
22
VSS
44
DQ15
43
DQ14
42
DQ13
41
DQ12
40
VSS
39
DQ11
38
DQ10
37
DQ9
36
DQ8
35
N.C
34
N.C
33
N.C
32
LCAS
31
UCAS
30
OE
29
A8
28
A7
27
A6
26
A5
25
A4
24
VSS
23
U16
S256K16-50
$VMBD0
$VMBD1
$VMBD2
$VMBD3
$VMBD4
$VMBD5
$VMBD6
$VMBD7
$VWEB#
$VRAS#0
$VAA0
$VAA1
$VAA2
$VAA3
$VMBD15
$VMBD14
$VMBD13
$VMBD12
$VMBD11
$VMBD10
$VMBD9
$VMBD8
$VCASBH#
$VCASBL#
$VAA4
$VAA5
$VAA6
$VAA7
$VAA8
+3.3V
C125
SCD1U
C104
SCD1U
VCC
1
DQ0
2
DQ1
3
DQ2
4
DQ3
5
VCC
6
DQ4
7
DQ5
8
DQ6
9
DQ7
10
N.C
11
N.C
12
N.C
13
N.C
14
WE
15
RAS
16
N.C
17
A0
18
A1
19
A2
20
A3
21
VCC
22
VSS
44
DQ15
43
DQ14
42
DQ13
41
DQ12
40
VSS
39
DQ11
38
DQ10
37
DQ9
36
DQ8
35
N.C
34
N.C
33
N.C
32
LCAS
31
UCAS
30
OE
29
A8
28
A7
27
A6
26
A5
25
A4
24
VSS
23
U6
S256K16-50
VCC
1
DQ0
2
DQ1
3
DQ2
4
DQ3
5
VCC
6
DQ4
7
DQ5
8
DQ6
9
DQ7
10
N.C
11
N.C
12
N.C
13
N.C
14
WE
15
RAS
16
N.C
17
A0
18
A1
19
A2
20
A3
21
VCC
22
VSS
44
DQ15
43
DQ14
42
DQ13
41
DQ12
40
VSS
39
DQ11
38
DQ10
37
DQ9
36
DQ8
35
N.C
34
N.C
33
N.C
32
LCAS
31
UCAS
30
OE
29
A8
28
A7
27
A6
26
A5
25
A4
24
VSS
23
U26
S256K16-50
$VMCD0
$VMCD1
$VMCD2
$VMCD3
$VMCD4
$VMCD5
$VMCD6
$VMCD7
$VWEC#
$VRAS#0
$VAA0
$VAA1
$VAA2
$VAA3
$VMCD15
$VMCD14
$VMCD13
$VMCD12
$VMCD11
$VMCD10
$VMCD9
$VMCD8
$VCASCH#
$VCASCL#
$VAA4
$VAA5
$VAA6
$VAA7
$VAA8
+3.3V
3
3,10
10
10
10
10
10
10
10
10
11
11
11
10
10
10
10
1
2
R75
0R3
1
2
R201
33R3
1
2
R207
33R3
1
2
R52
560R3
1
2
R61
0R3
C53
SCD1U
C55
SC1U10V5KX
9
8
1
4
1
0
7
U2C
SSABT125
12
11
1
4
1
3
7
U2D
SSABT125
1
2
3
4
8
7
6
5
U48
SI4435DY
1
2
3
Q4
2N7002
1
2
R46
47KR3
DDC_DATA
DDC_CLK
ENAVEE
$BLUE
$GREEN
$RED
$MOD
$LP
$FLM
$ZV_VREF
$ZV_HREF
$ZV_HCLK
$SHFCLK
HSYNC
VSYNC
$LCDPWR
$32KO
$VWEA#
$VWEB#
$VWEC#
$VWED#
+5V
+3.3V
+5V
CRT_GND
MVCC BYPASS CAP
IVCC BYPASS CAP
C115
SCD1U
C111
SCD1U
C114
SCD1U
1
2
L6
FB-1
C78
SCD1U
1
2
3
4
5
6
7
8
RP4 SRN10K
C97
SC1KP
C91
SC1KP
1
2
C280
ST47U10VDM
1
2
R47
10KR3
1
2
L12
FB-1
1
2
L4
FB-1
CX18
SC1KP
CX21
SC1KP
1
2
C76
ST10U16VBM
$AD24
$AD25
$AD26
$AD27
$AD28
$AD29
$AD30
$AD31
+3.3V
+3.3V
CRT_GND
+3.3V
+3.3V
+3.3V
C74
SCD1U
C88
SCD1U
1
2
C279
ST47U10VDM
1
2
C281
ST47U10VDM
1
2
L7
FB-1
1
2
L9
FB-1
1
2
L8
FB-1
1
2
L11
FB-1
CX17
SC1KP
CX19
SC1KP
CX20
SC1KP
CX22
SC1KP
+3.3V
+3.3V
S_GND
S_GND
P_GND
10
$P[0..23]
$
P
0
$
P
1
$
P
2
$
P
3
$
P
4
$
P
5
$
P
6
$
P
7
$
P
8
$
P
9
$
P
1
0
$
P
1
1
$
P
1
2
$
P
1
3
$
P
1
4
$
P
1
5
$
P
1
6
$
P
1
7
$
P
1
8
$
P
1
9
$
P
2
0
$
P
2
1
$
P
2
2
$
P
2
3
$
Z
V
_
U
V
7
$
Z
V
_
U
V
6
$
Z
V
_
U
V
5
$
Z
V
_
U
V
4
$
Z
V
_
U
V
3
$
Z
V
_
U
V
2
$
Z
V
_
U
V
1
$
Z
V
_
U
V
0
CRT_GND
11
11
1
2
R84 0R3
$ZV_UV[0..7]
$ZV_Y[0..7]
$ZV_Y0
$ZV_Y1
$ZV_Y2
$ZV_Y3
$ZV_Y4
$ZV_Y5
$ZV_Y6
$ZV_Y7
$VMDD0
$VMDD1
$VMDD2
$VMDD3
$VMDD4
$VMDD5
$VMDD6
$VMDD7
$VWED#
$VRAS#0
$VAA0
$VAA1
$VAA2
$VAA3
$VMDD15
$VMDD14
$VMDD13
$VMDD12
$VMDD11
$VMDD10
$VMDD9
$VMDD8
$VCASDH#
$VCASDL#
$VAA4
$VAA5
$VAA6
$VAA7
$VAA8
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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