Service manual

Schematic Diagrams
Memory Power +1.8V, +0.9VS B - 31
B.Schematic Diagrams
Memory Power +1.8V, +0.9VS
+5V 18,24,26,28,29,31
+1.8V 5,7,9,10,11
+H8VCC 2,19,23,27,32
+VIN 2 3, 28,29,31,32
+VIN1 28
+VA 32
+0.9VS 12
G
DS
Q74
2N7002W
PWRSW23
Z3024
R542
120
PIN 23 = SGND5
Z3022
Z3006
G
DS
Q60
2N7002W
Z3021
Z3020
R468
10K_04
+VDD5 13,14,17,19,27,28
+H8V CC
PWRSW#23
+3V 13,16,24,25,26,28,29,31
SYS5V 28,32
G
DS
Q63
AO3409
Z3001
+5V
VTTEN
Z3004
Z3008
C632
4.7U/10V_08
+1.8V_PWRGD
Z3002
2A
+1.8V_PWRGD 16
+5VS 13,14,17,18,19,22,24,27
SYS5V
+5V
Z3019
SYS5V
+5V
G
DS
Q59
2N7002W
TEST 28,29, 31
+0.9VS
+5V
+1.8V
Z3025
TZ3001
EN 1.8V
R543
100K_04
+5V
Z3016
G
DS
Q70
2N7002W
SUSB#16,23,27,31
Z3023
+1.8V_PWRGD
7A
R445 0
Z3013
R444
4.7_08
Z3017
C616
2200p_04
Z3018
Z3005
Z3012
Z3015
Z3003
Z3011
Z3010Z3009
Z3014
Z3007
EN 1.8V
R454
130_1%_04
C596
10u_12
R462 100K_04
C623
0.22u/16V
G
DS
Q57
2N7002W
R463 47K_04
+
C641
100u/6.3V_B2
C584
0.1u_04
R456 20K_1%_04
12
PJ7 2mm C627
4700p_04
C636
0.1u_04
R465
47K_04
1 2
L35
2.5uH
AC
D37
SCS551V
G
DS
Q62
2N7002W
1 2
PJ6
6mm
R466 10K_04
C631 100p_04
C618
10u_12
C617
10u_12
R455
3.3K_1%_04
R461 2.2_04
4
62
73
8
5
1
Q55
IRF7821
R525
100K_04
A C
D39 SCS140P
R458 0_04
VTTEN
R472 20K_1%_04
R446 7.15K_1%_04
R460 *2.2_04
VDDQEN
1
VTTEN
2
FPWM#
3
SS
4
PGOOD
15
VTT
6
FBVTT
8
VTTGND
5
VTTREF
14
DDQREF
10
AGND
9
OCDDQ
16
BOOST
17
VCCP
20
TGD DQ
18
SWDDQ
19
BGDDQ
21
PGND
22
COMP
12
FBDDQ
13
VTTI
7
VCCA
11
U43
NCP5214
C624
0.1u
+
C576
470u/2.5V_V
C629 0. 1u
R467
*0_04
R469
100K_04
R459 0
C637 0.1u_04
C634
1u/10V
C640
0.1u_04
A C
D35
SM240A
C633 470p_04
R464 *10K_04
R453
100K_04
R451
4.3K_1%_04
C630
4.7u/10V_08
R473
100K_04
G
DS
Q58
2N7002W
R457 *0_04
C635
1u_04
R452 0_04
4
62
73
8
5
1
Q56
IRF7831
C643
0.1u_04
G
DS
Q61
2N7002W
C601
0.1u
A C
D38 SCS140P
DD_ONH 28
DD_ON#28
+1.8V
+VI N
+VA
+VIN1
SGND5
+VIN
SGND5
SGND5
SGND5
+5V
SY S5V
+3V
SGND5
SGND5
SGND5SGND5
C639
*10u_08
Sheet 30 of 34
Memory Power
+1.8V, +0.9VS