Service manual
Schematic Diagrams
B - 34 +VCORE
B.Schematic Diagrams
+VCORE
Sheet 33 of 44
+VCORE
SGND5
+VIN
VCORE
+VIN
+12V
SGND5
SGND5
SGND5
+3V
+3V
+VDD5
SGND5
+3V
+VIN
+3V
+3V
SGND5
+2.6VS
VCORE
CPU_VLD[14]
TEST [31,32,34]
CPUVDD_EN[14]
VCORE-[4,5]
VCORE+[4,5]
+5VS [8,15,19,20,21,23,25,26,27,28,30,31]
+3VS [2,6,8,11,12,13,14,15,16,17,19,20,21,23,24,26,27,29,30,31]
VCORE [5]
+VIN [25,26,31,32,34,35]
+3V [4,15,17,18,19,20,21,22,26,28,31,32]
+VDD5 [2,8,26,31,32,34,35]
H_VID1[4,17]
H_VID2[4,17]
H_VID0[4,17]
H_VID4[4,17]
H_VID3[4,17]
+5V [17,20,21,23,26,31]
+12V [34]
CPU_VID3
CPU_VID2
CPU_VID1
CPU_VID0
CPU_VID4
+2.6VS [4,9,12,13,14,31]
Z3412
Z3417
Z3411
Z3418
Z3409
Z3414
Z3419
Z3404
Z3410
Z3420
Z3408
Z3406
Z3413
Z3423
Z3436
Z3424
Z3431
Z3425
Z3426
Z3433
Z3429
Z3401
Z3415
Z3416
Z3435
Z3430
Z3434
Z3428
Z3407
Z3405
Z3421
Z3427
Z3432
Z3422Z3402
Z3438
Z3439
Z3437
R588
10K_04
R93 0
L33 1.0uH
RTH1 100K/NTC
R74
510K
C180
0.1u
C173
10u/25V_12
R54 8.45K
C234
10u/25V_12
R31
10K_04
Q71
RQA180N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
Q9
2N3906
B
E
C
R44
100K_04
C153
0.1u_08
T212
C165
*4.7u_08
+
C608
*470U_4V_7343
12
R64
487K
C107 680P
R66
2K_1%
R100 43K
Q70
RQA200N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
R112 0
R29
100K
C152
100p_04
R52
10K_04
C156
0.01u_04
R110
0
C181
0.1u
R109 0
C217
10u/25V_12
Q76
RQA200N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
C110
100p_04
J2
OPEN
12
D35
SCD34
A C
R107
0
C106
27P
C182
4.7u_08
R92 0
R108
0
R65
390K
R102
124K
Q69
RQA200N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
+
C577
*470U_4V_7343
12
R51
*10K_04_1%
Q11
2N7002
GS
D
T213
D10 1SS355A CD4
1SS355
AC
C235
0.1u_08
R43
10K_04
Q77
RQA200N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
R111 0
C187
1u_04
C219
0.1u_08
R50
100K_04
R101
124K
R91 0_08
D48 *SCS751VAC
T214
R49
10K_04
+
C592
470U_4V_7343
12
L34 1.0uH
D49 *SCS751VAC
R81
220K
R30
174K
R98 95.3K
D50 *SCS751VAC
Q13
2N7002
GS
D
R99
10
D51 *SCS751VAC
D47 *SCS751VAC
U8
ADP3419
1
2
3
4
5 6
7
8
9
10
IN
SD#
DRVLSD#
CROWBAR
VCC DRVL
GND
SW
DRVH
BST
C183
4.7u_08
C96
*1u
U9
ADP3419
1
2
3
4
5 6
7
8
9
10
IN
SD#
DRVLSD#
CROWBAR
VCC DRVL
GND
SW
DRVH
BST
R590
10K_04
+
C599
22U_25V_OS10*5
12
D38
SCD34
A C
+
C613
22U_25V_OS10*5
12
R32
10K_04
+
C605
470U_4V_7343
12
C186
1u_04
Q72
*RQA180N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
C164
0.0047U_08
+
C585
470U_4V_7343
12
Q75
*RQA180N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
Q10
2N3906
B
E
C
C236
10u/25V_12
U6 ADP3186
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
16
17
18
19
20
21
22
23
24
25
26
27
28
VID4
VID3
VID2
VID1
VID0
Crowbar
FBRTN
FB
COMP
PWRGD
EN
DELAY
RT
RAMPADJ ILIMIT
CSREF
CSSUM
CSCOMP
GND
CS4
CS3
CS2
CS1
PWM4
PWM3
PWM2
PWM1
VCC
C95
680P
Q74
RQA180N03
3
4
8
2
5
6 7
1
..
G
D
S
D,
.D.
,
+
C601
470U_4V_7343
12
Q12
2N7002
GS
D
C218
10u/25V_12
C105
0.039u
D9 1SS355A C
R581
*10K_04
C905
0.1u_04
R583
*10K_04
R582
*10K_04
C900
0.1u_04
R579
*10K_04
C899
0.1u_04
C901
0.1u_04
R580
*10K_04
C902
0.1u_04
C904
0.1u_04
C903
0.1u_04
R591
10K_04
R589
10K_04
R592
10K_04
PM_DPRSLPVR into High,
When CPU Entry C3,C4.
30A
Close to
output
Inductor
VCORE+ VCORE- Place trace 12 mils.
Reserve For K8-M 1129