Acer AT1945 Service Manual page 65

CN902 CN901
1 1 Dimming
2 2 PS_ON
0 OHM 1/10W
3 3 BL_EN
4 4 C902
NC/1uF/16V
5 5
6 6
7 7 +5VSB
8 8
9 9
10 10
11 11
12 12 +16VSB
13
14
15 +24V
CONN +5V
NC/CONN
R934
NC
PS_ON
Q907
NC/MMBT3904
D7902 LL4148
+5V
C907 0.47uF
L901
10uH
DV33
+
D903
SM340A
G1084-33T43Uf 5A/3.3V
+5V AV33
U906
3 2
VIN VOUT
+ +
C7920 C925
C7919 100uF/16V 0.1uF/25V
100uF/16V
G1117-25T63Uf
DV33
AV25
U901
3 2
VI VO
+
C7932 C938
100uF/16V 0.1uF/25V
C911
100uF/25V
R7904
R7905 DV33
1K OHM 1/10W
Q902 R7907
BL_DIM 9
MMBT3904 4.7K OHM 1/10W
DV33 +3V3SB
R910
10K OHM 1/10W R939
10K OHM 1/10W
Q904 R913
BL_ON/OFF
MMBT3904 4.7K OHM 1/10W
+5V
R941
NC
Pull high 3.3V
R942 NC
Q909 R935
NC/MMBT3904 NC
U903
9 C7901 0.0082uF R915 10K OHM 1/10W
PAD
1 8
BST SY NC
2 7 C7908 0.1uF/25V
IN COMP
3 6 R7918 5.6K OHM 1/10W
SW FB
4 5
GND EN
R7919 10K OHM 1/10W
DV33
SC4519S.TRT
G1117T63Uf
DV33 DV12_DM
U907
3 2
VIN VOUT
+
C7921 C7922 C926
100uF/16V 10uF/10V 0.1uF/25V
R933
0 OHM 1/10W
C909 U904
16V 1uF/25V 1
FB VSS
R943 20K OHM 1/10W 2
EN VSS
R944 2K OHM 1/10W 3
OCSET OUTPUT
4
VCC OUTPUT
AP1510SA
+
C913
0.1uF/25V
AME8810-AEGTZ 0.6A/3.3V
+5VSB
U902
3 2
VIN VOUT(heat sink)
+
C904
C7903 10uF/10V
100uF/16V
9
+5VSB
R940
NC/10K OHM 1/10W
uP default High
R7903 NC/10K OHM 1/10W
3V3SB_EN Q910
13 3V3SB_EN
NC/MMBT3904
C933
PS_ON_SW 13
NC/1uF/16V
G1117T63Uf
AV25 AV12
U908
3 2
VIN VOUT
+
C934 C939 C940
100uF/16V 0.1uF/25V 1uF/16V
R901
0 OHM 1/10W
1.25 x (1+0/100) = 1.25V
10% tolerance
U905
C7917
+5V 1uF/16V 1
FB VSS
R926 100K OHM 1/10W 2
EN VSS
R7927 3K OHM 1/10W 3
OCSET OUTPUT
4
VCC OUTPUT
C923 AP1513SA
NC
+
C7930 100nF/NC
0.1uF/25V
R946 1.3K OHM 1% 1/10W
0.8 x (1+10K/1.3K) = 7V
C956
8 NC R945
7 10K OHM 1/10W
6
5 L903 27uH
+
C955 C7912
Low ESR
470uF/10V 0.1uF/25V
D7904
SM240A
T P V ( Top Victory
絬 隔 瓜 絪 腹 T2848-C-X-X-3-071128
Key Component POWER
Friday , March 28, 2008
Date
65
FB903
1 2
220 OHM
+3V3SB_uP Q908 +3V3SB
NC/ME2301
P-MOS
+5VSB
C7905 R947
0.1uF/25V 200 OHM 1W C7933
4.7UF10V
R7902 47K OHM 1/10W
+3V3SB
R909
10K OHM 1/10W
R912
9 POWER_ON/OFF
10K OHM 1/10W
R7922
3V3SB_EN
NC/10K OHM 1/10W
+16VSB
C7934
10uF/25V
R7914 47K OHM 1/10W
ACER:R909,R912,R923 10K ohm ;
R922,R906 NC
+
C941 C935
Philips:R909,R912,R923 NC ;
0.1uF/25V 100uF/16V
R922,R906 10K ohm
R923
10K OHM 1/10W
R906
3V3SB_EN
NC/10K OHM 1/10W
R924 2K OHM 1/10W
0.8 x (1+0.75K/2K) = 1.1V
R7925
C918 1.02K OHM 1/10W 1%
8
NC
7
6
5 L902 27uH
+
C7924 C928
Low ESR 470uF/10V 0.1uF/25V
D7901
SM340A
AZ1117D-5.0-E1 TO-252 +TUNER_5V
7V
U911
3 2
7V INPUT OUTPUT
1
ADJ/GND
AZ1117D-5.0-E1
C953
0.1uF/25V
⊿ 竚礚猭綼
Tuner
Electronics Co . , Ltd. ) OEM MODEL AT1936
TPV MODEL TV1968W-AED
PCB NAME
715T2848-C
Sheet 21 of 21
Q7901
1 8 +5V
S D
2 7
S D
3 6
S D
4 5
G D
AP9435GM -5.3A/-30V
Q7903
MMBT3904
C7906
1uF/16V
Q905
1 8 16V
S D
2 7
S D
3 6
S D
4 5
G D
AO4449 -7A/-30V
Q906
MMBT3904
C7916
1uF/16V
DV10
FB901
FB904
BEAD
0 OHM 1/8W
C7929 C957
0.01uF/25V 0.01uF/25V
+5V_TUNER
FB902
BEAD
+
Low ESR C954
470uF/10V
Closed to Tuner
Size A3
Rev C
称爹
<称爹>