Acer AL1922, Service Manual

Page: 55 / 70

54
GM5321
RX2+
WP
GND
POWER_ON
R440
NC
OSC_SEL
1
LV_E8
x
OCM_USES_TCLK 0=OCM_CLK=FCLK
FB406
120 OHM
LV_O9
C451
0.1uF/16V
C450
1uF/25V
1.8V_DVI
ROM_WP#
C422
0.1uF
x
ROM_ADDR(11:10)
GND
GND
LV_E5
C412
0.1uF
ROM_ADDR15
+3.3V
PWM0
AUDIO_SD
+3.3V
LV_O[0..9]
0=Parallel,1=SPI
LED_ORANGE
C440
0.1uF
WP
ROM_ADDR(14:13)
ROM_ADDR16
U402
NC
3
2
1
VCC
RSTN
GND
C424
0.1uF
LBADC2
C418
0.1uF
R463
10K 1/16W
+5V
R456 NC
+5V
DDC_SCL_DVI
C442
0.1uF
LV_E2
C426
0.1uF
ROM_ADDR12
00=UART
R205->R421 PAGE2
PWM1_VOLUME
DVI_HPD
GND
R454
47K 1/16W
LED_GRN
SDA
RED+
R410 0 1/16W
GND
Q201->Q403 PAGE2
1.8V_AVDD
ROM_SDO
SET R
GND
GND
+1.8V
+3.3V
GND
BLUE+
R427 0 1/16W
FB409
120 OHM
+3.3V
GREEN-
RMADDR15
R441
0 1/16W
0=TCLK source using external
crystal
GND
+3.3V_RGB
C441
0.1uF
To specify the device address for serial host
interface
R201->R419 R202 -> R420 PAGE2
+ C420
10uF
GPIO5/UART_DO
R444 100 1/16W
x
+3.3V
1.8V_PLL
LV_O8
C416
0.1uF
DESCRIPTION
+3.3V
RMADDR12
PBIAS
LV_E0
C439
0.1uF
2004/11/26 R258->R458
+ C432
10uF
GND
LV_E3
C414
0.1uF
+3.3V
ROMCE#
R423 0 1/16W
R455 0 1/16W
1.8V_CVDD
RXC+
R419 4.7K 1/16W
C429
0.1uF
GND
R438
10K 1/16W
x
R422
20K 1/16W
GND
LV_O3
R451 20K 1/16W
U403
SST25VF010
1
2
3
4
5
6
7
8
CE#
SO
WP#
VSS
SI
SCK
HOLD#
VCC
C428
0.1uF
R452
47K 1/16W
X401
14.318MHz
1
2
R439
10K 1/16W
Close to respective power Pins
R458
10K 1/16W
RED-
HS
LV_E7
R457
10K 1/16W
FB401
120 OHM
TCLK
R459
10K 1/16W
R462 0 1/16W
DDC_SDA_VGA
C437
0.1uF
C434
0.1uF
1.8V_DVI
R461
NC
00=Check for signature in external ROM and if
present jump to external ROM
RX1-
R450 NC
ROM_ADDR17
RXC-
GPIO4/UART_DI
DDCHANSEL
3.3V_LVDS
LV_O0
C455
0.1uF
C413
0.1uF
R417 NC
NAME
AGND
GND
RMADDR16
LV_E9
R433
10K 1/16W
LV_O6
3.3V_A
AGND
U401
GM5321
PQFP-208
151
152
147
148
142
143
119
118
124
123
129
128
169
170
98
99
100
101
35
36
133
132
114
71
72
77
78
79
80
178
92
93
69
202
201
200
199
198
197
196
195
194
185
4
3
2
1
208
207
204
203
186
187
193
189
192
188
5
154
150
149
153
144
122
117
23
50 73 190 205 166 9 41 75 96 116
67
68
12
121
25
126
28
115
171
26
172
24 137 11 164
181
182
8
42
51
74
76
94
97
140
180
163
165
136
155
48
47
87
86
66
65
33
34
62
59
61
60
58
57
63
64
46
45
44
43
38
37
55
56
32
31
30
29
22
21
49
54
18
17
16
15
14
13
19
20
167
70
135
27 40
113
120
125
130
134
141
145
7
6
95
184
183
191
206
139 179
177
39
168
156
131
127
146
81
82
83
84
85
88
89
90
91
138
10
102 103 106 107 108 109 110 111 112 52 53 104 105 157 158 159 160 161 162
173
174
175
176
RED+
RED-
GREEN+
GREEN-
BLUE+
BLUE-
RX2-
RX2+
RX1-
RX1+
RX0-
RX0+
XTAL
TCLK
GPIO11/PWM0
GPIO12/PWM1
GPIO13/PWM2
GPIO14/PWM3
CH1P_LV_O
CH1N_LV_O
RXC-
RXC+
REXT
HOST_SCL/UART_DI
HOST_SDA/UART_DO
DDC_SCL_VGA
DDC_SDA_VGA
DDC_SCL_DVI
DDC_SDA_DVI
RESETn
GPIO9/NVRAM_SCL
GPIO10/NVRAM_SDA
GPIO15
ROM_ADDR0
ROM_ADDR1
ROM_ADDR2
ROM_ADDR3
ROM_ADDR4
ROM_ADDR5
ROM_ADDR6
ROM_ADDR7
ROM_ADDR8
ROM_ADDR15
ROM_DATA0
ROM_DATA1
ROM_DATA2
ROM_DATA3
ROM_DATA4
ROM_DATA5
ROM_DATA6
ROM_DATA7
ROM_ADDR14
ROM_ADDR13
ROM_ADDR9
ROM_ADDR11
ROM_ADDR10
ROM_ADDR12
ROM_OEn
AVDD_ADC_3.3
AVDD_RED_3.3
AGND_GREEN
AGND_RED
AGND_BLUE
AGND_RX1
AGND_RX2
AVSS_LV_E
RV
DD_
3
.3
RV
DD_
3
.3
RV
DD_
3
.3
RV
DD_
3
.3
VD
D
_
R
P
LL_1.8
CV
DD_
1
.8
CV
DD_
1
.8
CV
DD_
1
.8
CV
DD_
1
.8
VD
D
_
R
X
2_1.8
PPWR
PBIAS
AVSS_LV_E
VD
D
_
R
X
1_1.8
AVSS_LV
VD
D
_
R
X
0_1.8
AVSS_LV_O
AGND_IMB
AVDD_RPLL_3.3
AVD
D
_LV_3.3
LBADC_VDD_3.3
AVD
D
_LV_E_3.3
VD
D
_
R
XPLL_1.8
AVD
D
_LV_E_3.3
V
DD_
A
DC_
1
.8
HSYNC/CSYNC
VSYNC
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
GND_ADC
GND_RPLL
GND_RXPLL
RESERVED
RESERVED
RESERVED
CRVSS
CV
DD_
1
.8
JTAG_TDI
RESERVED
CH2P_LV_O
CH2N_LV_O
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
JTAG_TDO
RESERVED
RESERVED
RESERVED
RESERVED
CH0N_LV_O
CH0P_LV_O
RESERVED
JTAG_RESET
CLKN_LV_O
CLKP_LV_O
CH3N_LV_O
CH3P_LV_O
CH0N_LV_E
CH0P_LV_E
RESERVED
NC
CH2N_LV_E
CH2P_LV_E
CLKN_LV_E
CLKP_LV_E
CH3N_LV_E
CH3P_LV_E
CH1P_LV_E
CH1N_LV_E
RESERVED
RESERVED
RESERVED
AVD
D
_LV_O
_3.3
AVD
D
_LV_O
_3.3
AVDD_IMB_3.3
AVDD_RX2_3.3
AVDD_RX1_3.3
AVDD_RX0_3.3
AVDD_RXC_3.3
AVDD_BLUE_3.3
AVDD_GREEN_3.3
ROM_CSn
ROM_WEn
RV
DD_
3
.3
ROM_ADDR16
ROM_ADDR17
CRVSS
CRVSS
CV
DD_
1
.8
CV
DD_
1
.8
LBADC_GND
AVSS_LV_O
AGND_RPLL
AGND_ADC
AGND_RXC
AGND_RX0
SOG_MCSS
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
CLKOUT
RESERVED
GPI
O
1
6
GPI
O
1
7
GPI
O
1
8
GPI
O
1
9
GPI
O
2
0
GPI
O
2
1
GPI
O
2
2
GPI
O
2
3
NC NC NC NC NC NC NC NC NC NC NC
LBADC_IN1
LBADC_IN2
LBADC_IN3
LBADC_RETURN
R443 10K 1/16W
BOOTSTRAP SIGNALS
x
+ C409
10uF
1=Internal ROM off
R442 10K 1/16W
C453
0.1uF
C410
0.1uF
1=DDC2Bi=DDC_SCL_VGA/DDC_SCL_VGA
x
C454
0.1uF
R448
NC
R425 0 1/16W
GND
GND
+
C421
10uF
DEV_ADDR(6:0)
C407
0.1uF
FB402
120 OHM
+5V
LV_E[0..9]
LED_BLUE
C419
0.1uF
ADDRESS
R437 100 1/16W
DVI_EDID_WP
C433
0.1uF
RX2-
R434
10K
1/16W
LBADC1
+ C436
10uF
Q403
PMBS3904
3
2
1
R420 4.7K 1/16W
DDC_SDA_DVI
R499
NC
1.8V_AVDD
GPIO7/IRQin
SDA
LV_E4
GPIO8/IRQout
R436 100 1/16W
+5V
PPWR
ROM_SCSn
+ C438
10uF
TCLKSEL
FORCEI/EROM
00=for TCLK=14.3MHz
R418
20K 1/16W
+5V
RX0+
+ C431
10uF
C411
0.1uF
gm5321 C
715L-1439-C
C
2 4 Friday, November 26, 2004
Title
Size Document Number Rev
Date: Sheet of
C446
0.01uF
2
R451 Dual >>20K
Analog-only>>NC
GND
GND
GND
LV_E1
R449
0 1/16W
LV_E6
SCL
OP_MODE
+3.3V
RMADDR17
LV_O5
FB405
120 OHM
+ C415
10uF
+1.8V
ROMCE#
GND
GND 1.8V_PLL
GREEN+
R415
20K 1/16W
C406
0.1uF
C417
0.1uF
0=Internal ROM on at top of 1M in X86
address space(normal operation)
SCL
XTAL
LV_O2
1
R445
10K 1/16W
C445 33pF
FB408
120 OHM
2004/11/23 パ U2XX эΘ U4XX
+
C449
10uF
C448
1uF/25V
RMADDR17
C443
0.1uF
ROM_SDI
FB403
120 OHM
SPI_EN
2004/11/26 FB207->FB407 PAGE2
+1.8V
RMADDR16
x
GPIO4/UART_DI
+1.8V
GND
+3.3V_RGB
GND
GND
VGA_PG
GPIO5/UART_DO
R453 20K 1/16W
R426 0 1/16W
GND
U405
M24C16-MN6T
1
2
3
4
5
6
7
8
A0
A1
A2
VSS SI
SCK
WP
VCC
R421 255 1/16W
C201->C449 C202->C452 C203->C453 C204->C454 C205->C455
+3.3V
C408
0.1uF
R424 0 1/16W
ROM_ADDR(6:0)
OCM_ROM
RMADDR15
LV_O7
C430
0.1uF
C435
0.1uF
FB404
120 OHM
R449 Serial ROM >>0
Parallel
ROM>>NC
SOG_MCSS
R460 0 1/16W
BLUE-
RX0-
LV_O1
RMADDR13
R435
10K 1/16W
+3.3V
AGND
C425
0.1uF
C423
0.1uF
R204->R424 R206->R425 R208->R426 R207->R427 R209->R423 PAGE2
GPIO7/IRQin
RX1+
C427
0.1uF
3.3V_LVDS
GND
VS
1.8V_CVDD
LV_O4
C444 33pF
GPIO8/IRQout
ROM_ADDR9
DDC_SCL_VGA
C452
0.1uF
FB407
120 OHM
ROM_ADDR(8:7) x
x
3