1.8V, 0.9Vs - EUROCOM T890M Service Manual

Schematic Diagrams

1.8V, 0.9VS

Sheet 27 of 31
1.8V, 0.9VS
B - 28 1.8V, 0.9VS
V IN
P R86
1M _ 1% _04
V 1.8
P R69 10_06
Ra
PC 61
PC 76 PR 78 P C68
100P _50V_ 04 1.91K_ 1%_ 04 1U_6.3V _X 5R_04 1U _6.3V_X 5R _04
P R67
Rb
10_06 P C140
PR 73 PR 142
* 0. 1U _10V _X 7R_04
10_06 10K _1% _04
Z2 809
P C155
PC 69 P C141 P R57
1U_6.3V _X 5R_04 0_04 .001U_ 50V_X 7 R_04
0.068U_10V _X 7R _04
V S SA
P J5 1.0A
VT T _M EM
2 1
0. 9V S
OP EN -1m m
V 1.8
PR 62 PC 121
20K _1% _04 4.7U_10V _X 5R_08 P C122 PC1 28
4.7U_ 10V_X 5 R_08 1U_6.3V _X 5R_04
P R84 47K _04 1.8VE N
5V
PC1 54
PQ 34
G . 1U _10V _X 7R_04
20,21,25 DD_ON #
2 N7002W
P R58 10K _04 VT T E N
5V
PC4 8
PQ 25
G . 1U _10V _X 7R_04
25,26 SU SB
2 N7002W
5V 3.3V
P R87 P R143
P D7 100K _04
10_06
F M 05 40- N
P U6
Z2801 3 7 1. 8 VOK
V DDQ S P GD
Z2802 2 P R139 0_04
T ON 24 Z 2811 Z 2823
B ST
Z2803 6
F B
Z2804 8 P C45
RE F
P C15 3
Z2805
9 0.1U_50V _06
CO M P
0.1U _50V _06 PQ 42A
P R129 0_04
23 Z 2812 Z 2816 8
DH
AO 4932
Z2806 10
V T T S
P R12415K_1% _04
Z2807 Z 2813
5 21
V CCA ILIM
PL8 P CM B 053T -3R3 M S 3.3U H
Z 2814
P C156 22 1 2
LX
19 Z 2815 D02 1023
DL
1U _6. 3 V_X 5R _04 PQ 42B
4
V SS A
14 20 3
V T T V DD P1 5V
15
V T T
P C130 AO 4932
12
V DDP 2
13 1U _6.3V_X 5 R_04
V DDP 2
1 18
E N/PS V PG ND1
16
PG ND1
11 17
V T T EN PG ND2
V SS A
S C486
P R1 35 0_04
0.9VS
1.8V
VIN
3.3V
5V
V IN
P C57
4.7U_25V _X 5R _08
V 1.8
P J14
3.5A
1 2
1.8V
2 mm
PC 138 PC 142
C 431
. 1 U_10V _X 7R_04 150U_4V _B 2 +
220 UF M 4 V D
D02 1021
8,11
8,9,11,25
13,24..26,28,29
3,7,9,13..15,17. .19,21,23,25,26
9,13,14,19..21,24.. 2 6, 28