Acer AT1921 Service Manual page 57

5
+12VAUDIO +12V_AMP
L35 +12V_AMP
Bead_121_4A/8
C146 CE43
+
0.1uF/6 100uF/16V
D
+12VAUDIO 2,11
C
C154 R251
1uF/6 10k/6
11 AMP_R
C163 R258
1uF/6 10k/6
B
C172 R265
1uF/6 10k/6
11 AMP_L
C185 R272
1uF/6 10k/6
A
4
+12V_AMP
Q35
R412 2N3904/NC
1k/6/NC
OFF_MUTE
R246
4 GPIO20
+12V_AMP
R248
10R/12
C147 C148
0.1uF/6 0.1uF/6
OUT1-
C151
0.1uF/6
R249
220k/6
R252
C155 47k/6
2
IN1P
180pF/6
C157
100pF/6
C161
3
IN1M
180pF/6
R259
47k/6
C168
R261 330nF/6
220k/6 TFA9810
8
CDELAY
OUT1+
6
SO/OL
ENABLE
7
ENABLE
OUT2-
10
TP45
DIAG
R262
11
TEST
220k/6
C178 R266
180pF/6 47k/6
15
IN2P
C182
100PF
C184
14
IN2M
180pF/6 R273
47k/6
R274
220k/6
OUT2+
3
R245
10k/6 ENABLE
Q20
2N3904 R299
10k/6
10k/6
R247
10k/6
L36 L37
Bead_121_4A/8 Bead_121_4A/8
C149 C150
330uF/25V 330uF/25V
C152
0.1uF/6
OUT1+
26
OUT1P
C156 R254
220nF/6
10R/12
27
BOOT1P
R255 1M/6/NC
R257 1M/6/NC
29
BOOT1M
10R/12
C167 R260
220nF/6
28
OUT1M
OUT1-
C169
1uF/6
31
STABI1
C170
1uF/6
18
STABI2
OUT2+
23
OUT2P
C173 R263
220nF/6
10R/12
22
BOOT2P
R267 1M/6/NC
R270 1M/6/NC
20
BOOT2M
R271 10R/12
C183
220nF/6
21
OUT2M
OUT2-
2
U21
MAX809-S SOT-23 2.93V RST/NC DV33A
SOT23
R298
4.7k/6/NC
D48
LL4148/NC
ENABLE
Reset circuit
L38 L39
Bead_121_4A/8 Bead_121_4A/8
L40
Bead_121_4A/8
L41 Bead_121_4A/8
L42 22uH
C158 C159 C160 R256 C162
470pF/6 680nF/6 0.1uF/6 10R/12 470nF/6
AMP_GND
C164 C165 C166
470pF/6 680nF/6 0.1uF/6
L43 22uH
L44 22uH
C174 C175 C176 R268 C177
470pF/6 680nF/6 0.1uF/6 10R/12 470nF/6
AMP_GND
C179 C180 C181
470pF/6 680nF/6 0.1uF/6
L45 22uH
Title
Size Document Number
Custom <Doc>
Date: Tuesday, May 29, 2007
1
CON2
1
2
3
4
4606-04-04P-R
PROJECT :E9T-PV
AUDIO AMP
R e v
C3B
Sheet 13 o f 14
D
C
B
A