Ddr2 - Sanyo DP26671 Service Manual

A B
8
7
C2816
6
10V 0.1 B
1005
R2800
100 1/16W +-1%
1005
5
4
3
2
FROM/TO SCALER POWER
VCCQ18
GND
1
A B
G-11
C D
DDR2 SCHEMATIC DIAGRAM
DDR2_SDRAM IC
IC2802 EM68B16CWPA-25H
1.7
SDDQ0
DQ0 G8
1.8
1.7
R1 VDD SDDQ5
DQ1 G2
1.8
M9 VDD
1.7
1.8 SDDQ1
J9 VDD DQ2 H7
1.8
1.7
E1 VDD SDDQ4
1.8 DQ3 H3
A1
VDD
1.7
SDDQ6
DQ4 H1
1.7
SDDQ7
DQ5 H9
1.7
SDDQ2
DQ6 F1
1.7
SDDQ3
1.8
DQ7 F9
G9 VDDQ
1.8 1.7
SDDQ8
G7 VDDQ
C8
1.8 DQ8
G3 VDDQ
1.7
SDDQ11
1.8
DQ9 C2
G1 VDDQ
1.8 1.7
SDDQ13
E9 VDDQ
DQ10 D7
1.8
C9 1.7
VDDQ
SDDQ14
1.8 DQ11
D3
C7 VDDQ
1.8 1.7
SDDQ9
C3 VDDQ
DQ12 D1
1.8
C1 VDDQ 1.7
SDDQ10
1.8
DQ13 D9
A9 VDDQ
1.8 1.7
SDDQ12
J1 VDDL
DQ14 B1
1.7
SDDQ15
DQ15 B9
0.9
J2 VREF
1.8
LDM
F3
1.8
UDM B3
1.8
F7
LDQS
1.8
LDQS E8
1.8
UDQS B7
1.8
UDQS A8
R8 NC5
NC 1.8
DACLK
J8
CK
R7 NC4
NC 1.8
DACLK_N
CK K8
NC R3 NC3
NC E2 NC2
NC A2 NC1
1.8 DRAM_A0
A0 M8
1.8 DRAM_A1
A1 M3
1.8 DRAM_A2
A2 M7
1.8 DRAM_A3
A3 N2
1.8 DRAM_A4
A4 N8
1.8 DRAM_A5
A5 N3
1.8 DRAM_A6
A6 N7
1.8 DRAM_A7 DRAM_A4
A7 P2
DRAM_CAS
1.8 DRAM_A8
A8 P8
DRAM_A11
1.8 DRAM_A9
A9 P3 DRAM_A0
1.8
DRAM_A10
0 A10 M2
A3 VSS
1.8 DRAM_A11
0 A11 P7
E3 VSS 1.8 DRAM_A12
A12 R2
0
J3 VSS
DRAM_A10
0
DRAM_A1
N1 VSS
0 DRAM_BA1
1.8 DRAM_RAS
P9
VSS RAS K7
DRAM_A9
0 1.8 DRAM_CAS
A7 VSSQ CAS L7
0 1.8 DRAM_ODT
ODT K9
B2 VSSQ
1.8 DRAM_BA2
0
BA2(NC) L1
VSSQ
B8
1.8 DRAM_BA1
0 BA1 L3
D2 VSSQ 1.8 DRAM_BA0 DRAM_WE
BA0 L2
0
DRAM_BA0
1.8 DRAM_WE
D8
VSSQ WE K3
DRAM_BA2
0
1.8 DRAM_CKE
E7 VSSQ CKE K2 DRAM_A3
0
F2
VSSQ
0
F8 VSSQ
0 DRAM_A5
H2
VSSQ DRAM_A12
0
DRAM_CKE
H8
VSSQ
0 DRAM_A7
J7 VSSDL
CS L8
DRAM_RAS
DRAM_A6
DRAM_A2
DRAM_ODT
DRAM_A8
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
(MAIN PCB)
SCALER IC
IC2801
R8A66983BG-U0
1.7
SDDQ0
N4
1.7
SDDQ1
R3
1.7
SDDQ2
T4
1.7
SDDQ3
P3
1.7
SDDQ4
T2
1.7
SDDQ5
R4
1.7
SDDQ6
T3
1.7
SDDQ7
P4
1.7
SDDQ8
P8
1.7
SDDQ9
T5
1.7
SDDQ10
N7
1.7
SDDQ11
P6
1.7
SDDQ12
R6
1.7
SDDQ13
P7
1.7
SDDQ14
N8
1.7
SDDQ15
R8
1.8
DADQM0
R5
1.8
DADQM1
T6
1.8
DADQS0
P5
1.8
DADQS0_N
N5
1.8
DADQS1
R7
1.8
DADQS1_N
T7
R2842
1.8
SDCLK
R2
1.8
SDCLK_N
10 1/16W 1005
R1
1.8
SDBA2
P1
1.8
R2843 SDBA1
K4
1.8
SDBA0
10 1/16W 1005 N2
1.8
SDODT
K2
1.8
SDCKE
L3
SDRAS 1.8
J3
SDCAS 1.8 1.8
H3
SDWE 1.8
L4
NR2800
4D02WGJ0330TCE
SDA4
SDCAS
SDA11
SDA0
NR2801
4D02WGJ0330TCE
SDA10
SDA1
SDBA1
SDA0 1.8
J1
SDA9
SDA1 1.8
L1
SDA2 1.8
K1
NR2802 SDA3 1.8
M3
4D02WGJ0330TCE
SDA4 1.8
SDWE
H1
SDBA0
SDA5 1.8
M1
SDBA2
SDA6 1.8
SDA3
K3
SDA7 1.8
N1
NR2803
SDA8 1.8
4D02WGJ0330TCE
H2
SDA5
SDA9 1.8
SDA12 L2
SDCKE SDA10 1.8
J4
SDA7
SDA11 1.8
J2
1.8
SDA12 1.8
M2
NR2814
4D02WGJ0330TCE
SDRAS
SDA6
SDA2
SDODT
R2829
SDA8
33 1/16W 1005
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
E
F G
SDDQ0
SDDQ1
SDDQ2
SDDQ3
SDDQ4
SDDQ5
SDDQ6
SDDQ7
SDDQ8
SDDQ9
SDDQ10
SDDQ11
SDDQ12
SDDQ13
SDDQ14
SDDQ15
SDDM0
SDDM1
SDDQS0
SDDQS0_N
SDDQS1
SDDQS1_N
SDCLK
SDCLK_N
SDBA2
SDBA1
SDBA0
SDODT
SDCKE
SDRAS
SDCAS
R2846
SDWE
SDVREF0 M5
100 1/16W
1005
C2837
10V 0.1
1005
(PD2)SDVREF1 N3
SDA0
SDA1
SDA2
SDA3 Short wiring
SDA4
R2809
SDA5
0.9
DD_CL H4
SDA6
150 1/16W
+-1%
SDA7
1005
SDA8
SDA9
SDA10
SDA11
SDA12
F G
H
8
7
6
5
+-1%
B
4
3
2
PCBF40
CML222
1
H
G-12