Schematic Diagrams
MCH Memory (71-P2970-002A) B - 9
B.Schematic Diagrams
MCH Memory
Sheet 8 of 28
MCH Memory
DUAL2.5V
VSMYRCO
DUAL2.5V
VSMYRCO
VSMYRC
DUAL2.5V
DUAL2.5V
SD
Q
_
B8
SD
Q
_
B1
3
SD
Q
_
B3
9
SD
Q
_
B4
1
SD
Q
_
B5
2
SD
Q
_
B2
6
SD
Q
_
B2
8
SD
Q
_
B2
SD
Q
_
B2
1
SD
Q
_
B3
7
SD
Q
_
B4
8
SD
Q
_
B5
4
SD
Q
_
B6
2
SD
Q
_
B3
0
SD
Q
_
B3
2
SD
Q
_
B1
1
SD
Q
_
B1
6
SD
Q
_
B1
9
SD
Q
_
B2
3
SD
Q
_
B3
3
SD
Q
_
B4
4
SD
Q
_
B4
6
SD
Q
_
B5
0
SD
Q
_
B5
6
SD
Q
_
B6
0
SD
Q
_
B3
5
SD
Q
_
B1
2
SD
Q
_
B5
8
SD
Q
_
B5
SD
Q
_
B7
SD
Q
_
B2
7
SD
Q
_
B3
8
SD
Q
_
B4
2
SD
Q
_
B6
3
SD
Q
_
B1
0
SD
Q
_
B1
4
SD
Q
_
B1
7
SD
Q
_
B2
9
SD
Q
_
B4
0
SD
Q
_
B5
3
SD
Q
_
B2
0
SD
Q
_
B2
2
SD
Q
_
B4
7
SD
Q
_
B4
9
SD
Q
_
B5
1
SD
Q
_
B9
SD
Q
_
B2
5
SD
Q
_
B3
1
SD
Q
_
B3
4
SD
Q
_
B5
5
SD
Q
_
B6
1
SD
Q
_
B4
SD
Q
_
B6
SD
Q
_
B2
4
SD
Q
_
B4
3
SD
Q
_
B4
5
SD
Q
_
B0
SD
Q
_
B3
SD
Q
_
B3
6
SD
Q
_
B5
7
SD
Q
_
B5
9
SD
Q
_
B1
8
SD
Q
_
B1
SD
Q
_
B1
5
SDQ_B[0..63]
SD
Q
S
_
A
1
SD
Q
S
_
A
6
SD
Q
S
_
A
5
SD
Q
S
_
A
7
SD
Q
S
_
A
3
SDQS_A[0..7]
SD
Q
S
_
A
2
SD
Q
S
_
A
0
SD
Q
S
_
A
4
SD
M_
B0
SD
M_
B1
SD
M_
B2
SD
M_
B3
SD
M_
B4
SD
M_
B5
SD
M_
B6
SD
M_
B7
SD
Q
S
_
B
0
SD
Q
S
_
B
1
SD
Q
S
_
B
2
SD
Q
S
_
B
3
SD
Q
S
_
B
4
SD
Q
S
_
B
5
SD
Q
S
_
B
6
SD
Q
S
_
B
7
SDQS_B[0..7]
SDM_B[0..7]
SCKE_B1
SCKE_B0
SMAA_B12
SMAA_B11
SMAA_B10
SMAA_B9
SMAA_B8
SMAA_B7
SMAA_B6
SMAA_B5
SMAA_B4
SMAA_B3
SMAA_B2
SMAA_B1
SMAA_B0
SWE_B#
SCAS_B#
SRAS_B#
SBA_B0
SBA_B1
SCS_B0#
SCS_B1#
SMAA_A0
SMAA_A1
SMAA_A2
SMAA_A3
SMAA_A4
SMAA_A5
SMAA_A6
SMAA_A7
SMAA_A8
SMAA_A9
SMAA_A10
SMAA_A11
SMAA_A12
SBA_A1
SRAS_A#
SCS_A1#
SCS_A0#
SWE_A#
SBA_A0
SCAS_A#
SMXRCOMPVOL
SD
M_
A6
SD
M_
A5
SD
M_
A1
SD
M_
A3
SDM_A[0..7]
SD
M_
A0
SD
M_
A7
SD
M_
A2
SD
M_
A4
SD
Q
_
A2
1
SD
Q
_
A1
9
SD
Q
_
A5
4
SD
Q
_
A1
7
SD
Q
_
A3
4
SD
Q
_
A5
1
SD
Q
_
A2
8
SD
Q
_
A3
SD
Q
_
A5
7
SD
Q
_
A3
6
SD
Q
_
A5
9
SD
Q
_
A3
7
SD
Q
_
A5
SD
Q
_
A5
2
SD
Q
_
A4
2
SD
Q
_
A4
4
SD
Q
_
A1
6
SD
Q
_
A1
2
SD
Q
_
A1
4
SD
Q
_
A0
SD
Q
_
A3
3
SD
Q
_
A2
3
SD
Q
_
A9
SD
Q
_
A4
3
SD
Q
_
A4
0
SD
Q
_
A7
SD
Q
_
A2
5
SD
Q
_
A5
6
SD
Q
_
A6
2
SD
Q
_
A2
9
SD
Q
_
A3
1
SD
Q
_
A5
8
SD
Q
_
A4
SD
Q
_
A2
SD
Q
_
A6
0
SD
Q
_
A2
0
SD
Q
_
A1
8
SD
Q
_
A2
2
SD
Q
_
A6
SD
Q
_
A3
0
SD
Q
_
A3
9
SD
Q
_
A5
5
SD
Q
_
A5
0
SDQ_A[0..63]
SD
Q
_
A4
8
SD
Q
_
A1
1
SD
Q
_
A4
7
SD
Q
_
A1
3
SD
Q
_
A1
SD
Q
_
A1
5
SD
Q
_
A5
3
SD
Q
_
A3
5
SD
Q
_
A4
1
SD
Q
_
A3
8
SD
Q
_
A2
7
SD
Q
_
A4
5
SD
Q
_
A4
6
SD
Q
_
A3
2
SD
Q
_
A2
4
SD
Q
_
A6
1
SD
Q
_
A6
3
SD
Q
_
A4
9
SD
Q
_
A2
6
SD
Q
_
A1
0
SD
Q
_
A8
SMXRCOMPVOH
SMXRCOMPVOL
SMVREF_A
SMYRCOMPVOH
SMYRCOMPVOL
SMVREF_B
SMYRCOMP
SMYRCOMPVOL
SMAA_B[0..12]
SCKE_A0
SCKE_A1
SMAA_A[0..12]
SMVREF_A
SMVREF_B
TZ0801
TZ0802
TZ0803
TZ0804
TZ0805
TZ0806
TZ0807
TZ0808
TZ0809
TZ0810
TZ0812
TZ0813
TZ0811
TZ0815
TZ0814
TZ0816
TZ0817
TZ0818
TZ0819
TZ0820
TZ0821
TZ0822
TZ0823
TZ0824
TZ0825
TZ0826
TZ0827
TZ0828
T
Z
0829
T
Z
0830
SMXRCOMP
SMXRCOMPVOH
SMYRCOMPVOH
SPRINGDALE-GMCH MEMORY INTERFACE
DDR Channel B
DDR Channel A
U2C
SPRINGDALE-G
AJ34
AL33
AK29
AN31
AL30
AL26
AL28
AN25
AP26
AP24
AJ33
AN23
AN21
AL34
AM34
AP32
AP31
AM26
AB34
Y34
AC33
AE33
AH34
AA34
Y31
Y32
W34
A
L20
AN
1
9
AM2
0
AP2
0
AK32
AK31
AP17
AN17
N34
N33
AK33
AK34
AM16
AL16
P31
P32
E34
AK9
AN9
AL9
AP1
0
AP1
1
AM1
2
AN
1
3
AM1
0
A
L10
A
L12
AP1
3
AP1
4
AM1
4
A
L18
AP1
9
A
L14
AN
1
5
AP1
8
AM1
8
AP2
2
AM2
2
A
L24
AN
2
7
AP2
1
A
L22
AP2
5
AP2
7
AP2
8
AP2
9
AP3
3
AM3
3
AM2
8
AN
2
9
AM3
1
AN
3
4
AH
3
2
AG
3
4
AF3
2
AD
3
2
AH
3
1
AG
3
3
AE3
4
AD
3
4
AC
3
4
AB3
1
V3
2
V3
1
AD
3
1
AB3
2
U34
U33
T3
4
T3
2
K3
4
K3
2
T3
1
P3
4
L34
L33
J33
H34
E3
3
F3
3
K3
1
J34
G3
4
F3
4
AN
1
1
AP1
5
AP2
3
AM3
0
AF3
4
V3
4
M3
2
H31
AP1
2
AP1
6
AM2
4
AP3
0
AF3
1
W33
M3
4
H32
AJ
1
0
AE1
5
A
L11
AE1
6
AL
8
AF1
2
AK1
1
AG
1
2
AE1
7
A
L13
AK1
7
A
L17
AK1
3
AJ
1
4
AJ
1
6
AJ
1
8
AE1
9
AE2
0
AG
2
3
AK2
3
A
L19
AK2
1
AJ
2
4
AE2
2
AK2
5
AH
2
6
AG
2
7
AF2
7
AJ
2
6
AJ
2
7
AD
2
5
AF2
8
AE3
0
AC
2
7
AC
3
0
Y2
9
AE3
1
AB2
9
AA2
6
AA2
7
AA3
0
W30
U27
T2
5
AA3
1
V2
9
U25
R27
P2
9
R30
K2
8
L30
R31
R26
P2
5
L32
K3
0
H29
F3
2
G3
3
N25
M2
5
J29
G3
2
AF1
5
AG
1
3
AG
2
1
AH
2
7
AD
2
9
U30
L27
J30
AG
1
1
AG
1
5
AE2
1
AJ
2
8
AC
3
1
U31
M2
9
J31
AG31
AJ31
AD27
AE24
AK27
AG25
AL25
AF21
AL23
AJ22
AF29
AL21
AJ20
AE27
AD26
AL29
AL27
AE23
W27
W31
W26
Y25
AA25
U26
T29
V25
W25
AK1
9
AF1
9
AG
1
9
AE1
8
AG29
AG30
AF17
AG17
N27
N26
AJ30
AH29
AK15
AL15
N31
N30
AP9
AA33
R34
R33
SMAA_A0
SMAA_A1
SMAA_A2
SMAA_A3
SMAA_A4
SMAA_A5
SMAA_A6
SMAA_A7
SMAA_A8
SMAA_A9
SMAA_A10
SMAA_A11
SMAA_A12
SMAB_A1
SMAB_A2
SMAB_A3
SMAB_A4
SMAB_A5
SWE_A#
SCAS_A#
SRAS_A#
SBA_A0
SBA_A1
SCS_A0#
SCS_A1#
SCS_A2#
SCS_A3#
SC
KE_
A0
SC
KE_
A1
SC
KE_
A2
SC
KE_
A3
SCMDCLK_A0
SCMDCLK_A0#
SCMDCLK_A1
SCMDCLK_A1#
SCMDCLK_A2#
SCMDCLK_A2
SCMDCLK_A3
SCMDCLK_A3#
SCMDCLK_A4
SCMDCLK_A4#
SCMDCLK_A5
SCMDCLK_A5#
SMVREF_A
SMXRCOMP
SMXRCOMPVOH
SMXRCOMPVOL
SD
Q
_
A0
SD
Q
_
A1
SD
Q
_
A2
SD
Q
_
A3
SD
Q
_
A4
SD
Q
_
A5
SD
Q
_
A6
SD
Q
_
A7
SD
Q
_
A8
SD
Q
_
A9
SD
Q
_
A1
0
SD
Q
_
A1
1
SD
Q
_
A1
2
SD
Q
_
A1
3
SD
Q
_
A1
4
SD
Q
_
A1
5
SD
Q
_
A1
6
SD
Q
_
A1
7
SD
Q
_
A1
8
SD
Q
_
A1
9
SD
Q
_
A2
0
SD
Q
_
A2
1
SD
Q
_
A2
2
SD
Q
_
A2
3
SD
Q
_
A2
4
SD
Q
_
A2
5
SD
Q
_
A2
6
SD
Q
_
A2
7
SD
Q
_
A2
8
SD
Q
_
A2
9
SD
Q
_
A3
0
SD
Q
_
A3
1
SD
Q
_
A3
2
SD
Q
_
A3
3
SD
Q
_
A3
4
SD
Q
_
A3
5
SD
Q
_
A3
6
SD
Q
_
A3
7
SD
Q
_
A3
8
SD
Q
_
A3
9
SD
Q
_
A4
0
SD
Q
_
A4
1
SD
Q
_
A4
2
SD
Q
_
A4
3
SD
Q
_
A4
4
SD
Q
_
A4
5
SD
Q
_
A4
6
SD
Q
_
A4
7
SD
Q
_
A4
8
SD
Q
_
A4
9
SD
Q
_
A5
0
SD
Q
_
A5
1
SD
Q
_
A5
2
SD
Q
_
A5
3
SD
Q
_
A5
4
SD
Q
_
A5
5
SD
Q
_
A5
6
SD
Q
_
A5
7
SD
Q
_
A5
8
SD
Q
_
A5
9
SD
Q
_
A6
0
SD
Q
_
A6
1
SD
Q
_
A6
2
SD
Q
_
A6
3
SD
Q
S
_
A
0
SD
Q
S
_
A
1
SD
Q
S
_
A
2
SD
Q
S
_
A
3
SD
Q
S
_
A
4
SD
Q
S
_
A
5
SD
Q
S
_
A
6
SD
Q
S
_
A
7
SD
M_
A0
SD
M_
A1
SD
M_
A2
SD
M_
A3
SD
M_
A4
SD
M_
A5
SD
M_
A6
SD
M_
A7
SD
Q
_
B0
SD
Q
_
B1
SD
Q
_
B2
SD
Q
_
B3
SD
Q
_
B4
SD
Q
_
B5
SD
Q
_
B6
SD
Q
_
B7
SD
Q
_
B8
SD
Q
_
B9
SD
Q
_
B1
0
SD
Q
_
B1
1
SD
Q
_
B1
2
SD
Q
_
B1
3
SD
Q
_
B1
4
SD
Q
_
B1
5
SD
Q
_
B1
6
SD
Q
_
B1
7
SD
Q
_
B1
8
SD
Q
_
B1
9
SD
Q
_
B2
0
SD
Q
_
B2
1
SD
Q
_
B2
2
SD
Q
_
B2
3
SD
Q
_
B2
4
SD
Q
_
B2
5
SD
Q
_
B2
6
SD
Q
_
B2
7
SD
Q
_
B2
8
SD
Q
_
B2
9
SD
Q
_
B3
0
SD
Q
_
B3
1
SD
Q
_
B3
2
SD
Q
_
B3
3
SD
Q
_
B3
4
SD
Q
_
B3
5
SD
Q
_
B3
6
SD
Q
_
B3
7
SD
Q
_
B3
8
SD
Q
_
B3
9
SD
Q
_
B4
0
SD
Q
_
B4
1
SD
Q
_
B4
2
SD
Q
_
B4
3
SD
Q
_
B4
4
SD
Q
_
B4
5
SD
Q
_
B4
6
SD
Q
_
B4
7
SD
Q
_
B4
8
SD
Q
_
B4
9
SD
Q
_
B5
0
SD
Q
_
B5
1
SD
Q
_
B5
2
SD
Q
_
B5
3
SD
Q
_
B5
4
SD
Q
_
B5
5
SD
Q
_
B5
6
SD
Q
_
B5
7
SD
Q
_
B5
8
SD
Q
_
B5
9
SD
Q
_
B6
0
SD
Q
_
B6
1
SD
Q
_
B6
2
SD
Q
_
B6
3
SD
Q
S
_
B
0
SD
Q
S
_
B
1
SD
Q
S
_
B
2
SD
Q
S
_
B
3
SD
Q
S
_
B
4
SD
Q
S
_
B
5
SD
Q
S
_
B
6
SD
Q
S
_
B
7
SD
M_
B0
SD
M_
B1
SD
M_
B2
SD
M_
B3
SD
M_
B4
SD
M_
B5
SD
M_
B6
SD
M_
B7
SMAA_B0
SMAA_B1
SMAA_B2
SMAA_B3
SMAA_B4
SMAA_B5
SMAA_B6
SMAA_B7
SMAA_B8
SMAA_B9
SMAA_B10
SMAA_B11
SMAA_B12
SMAB_B1
SMAB_B2
SMAB_B3
SMAB_B4
SMAB_B5
SWE_B#
SCAS_B#
SRAS_B#
SBA_B0
SBA_B1
SCS_B0#
SCS_B1#
SCS_B2#
SCS_B3#
SC
KE_
B0
SC
KE_
B1
SC
KE_
B2
SC
KE_
B3
SCMDCLK_B0
SCMDCLK_B0#
SCMDCLK_B1
SCMDCLK_B1#
SCMDCLK_B2
SCMDCLK_B2#
SCMDCLK_B3
SCMDCLK_B3#
SCMDCLK_B4
SCMDCLK_B4#
SCMDCLK_B5
SCMDCLK_B5#
SMVREF_B
SMYRCOMP
SMYRCOMPVOH
SMYRCOMPVOL
R61
42.2_1%
R56
42.2_1%
C57
2.2u_0805
C214
2.2u_0805
C21
0.1u
C11
1u
R14
30.1K_1%
R18
10K_1%
CA52
0.1u
C71
1u
C72
2.2u_0805
C33
2.2u_0805
C30
2.2u_0805
C25
1u
R16
30.1K_1%
R21
10K_1%
CA1
0.1u
C29
2.2u_0805
R22
150_1%
R20
150_1%
C31
2.2u_0805
C24
0.01u
R23
42.2_1%
R26
42.2_1%
C67
0.1u
C69
0.22u
R76
10K_1%
R75
30.1K_1%
C63
0.01u
R64
30.1K_1%
R71
10K_1%
C64
1u
C65
0.22u
SDQ_A[0..63]
[9,10]
SDQ_B[0..63]
[9,10]
SDQS_A[0..7] [9,10]
SDQS_B[0..7] [9,10]
SCKE_B0 [9,10]
SCKE_B1 [9,10]
SDM_A[0..7] [9,10]
SDM_B[0..7] [9,10]
SCMDCLK_B1 [10]
SCMDCLK_B2 [10]
SCMDCLK_B0 [10]
SBA_B1
[9,10]
SBA_B0
[9,10]
SCMDCLK_B0# [10]
SCMDCLK_B1# [10]
SCMDCLK_B2# [10]
SCS_B1# [9,10]
SCS_B0# [9,10]
SRAS_B# [9,10]
SCAS_B# [9,10]
SWE_B#
[9,10]
SCMDCLK_A2#
[10]
SCS_A0#
[9,10]
SRAS_A#
[9,10]
SCMDCLK_A2
[10]
SBA_A1
[9,10]
SCMDCLK_A1
[10]
SCMDCLK_A1#
[10]
SCS_A1#
[9,10]
SCMDCLK_A0
[10]
SCMDCLK_A0#
[10]
SWE_A#
[9,10]
SBA_A0
[9,10]
SCAS_A#
[9,10]
SMAA_A[0..12]
[9,10]
SCKE_A0 [9,10]
SCKE_A1 [9,10]
SMAA_B[0..12] [9,10]
VSMYRCO [5]
VSMYRC
[5]
DUAL2.5V [5,10,22,26]
close to pin
E34
close to pin AP9
Содержание L295U Series
Страница 1: ...L295U L297U...
Страница 2: ......
Страница 3: ...Preface I Preface LCD Computer L295U L297U Series Service Manual...
Страница 36: ...Disassembly 2 16 2 Disassembly...
Страница 39: ...Part Lists L295U Base A 3 A Part Lists L295U Base Figure A 1 L295U Base...
Страница 40: ...Part Lists A 4 L295U Back A Part Lists L295U Back Figure A 2 L295U Back...
Страница 41: ...Part Lists L295U Front A 5 A Part Lists L295U Front Figure A 3 L295U Front...
Страница 43: ...Part Lists L295U Combo A 7 A Part Lists L295U Combo Figure A 5 L295U Combo...
Страница 44: ...Part Lists A 8 L295U Toshiba DVD A Part Lists L295U Toshiba DVD Figure A 6 L295U Toshiba DVD...
Страница 45: ...Part Lists L295U FDD A 9 A Part Lists L295U FDD Figure A 7 L295U FDD...
Страница 46: ...Part Lists A 10 L295U HDD A Part Lists L295U HDD Figure A 8 L295U HDD...
Страница 47: ...Part Lists L297U Base A 11 A Part Lists L297U Base Figure A 9 L297U Base...
Страница 48: ...Part Lists A 12 L297U Back A Part Lists L297U Back Figure A 10 L297U Back...
Страница 49: ...Part Lists L297U Front A 13 A Part Lists L297U Front Figure A 11 L297U Front...
Страница 51: ...Part Lists L297U CD ROM A 15 A Part Lists L297U CD ROM Figure A 13 L297U CD ROM...
Страница 52: ...Part Lists A 16 L297U Combo A Part Lists L297U Combo Figure A 14 L297U Combo...
Страница 53: ...Part Lists L297U Toshiba DVD RW A 17 A Part Lists L297U Toshiba DVD RW Figure A 15 L297U Toshiba DVD RW...
Страница 54: ...Part Lists A 18 L297U FDD A Part Lists L297U FDD Figure A 16 L297U FDD...
Страница 55: ...Part Lists L297U HDD A 19 A Part Lists L297U HDD Figure A 17 L297U HDD...
Страница 86: ...Schematic Diagrams B 30 B Schematic Diagrams...
