Sharp LC-26DV24U Service Manual page 53

A B
8
DDR_SDRAM IC
IC2802 HYB18TC256160BF-3S
DAA0 1.8 1.8
M8 A0 DQ0 G8
DAA1 1.5 1.8
M3 A1 DQ1 G2
DAA2 1.9 1.8
M7 A2 DQ2 H7
DAA3 1.9 1.8
N2 A3 DQ3 H3
DAA4 1.9 1.8
N8 H1
A4 DQ4
DAA5 1.9 1.8
N3 A5 DQ5 H9
DAA6 1.9 1.8
N7 A6 DQ6 F1
DAA7 1.9 1.8
P2 A7 DQ7 F9
DAA8 1.9 1.8
P8 A8 C8
DQ8
7 DAA9 1.9 1.8
DQ9
P3 A9 C2
1.8
DAA10 1.9
M2 A10 DQ10 D7
DAA11 1.9 1.8
P7 DQ11 D3
A11
1.8
DAA12 1.9
R2 A12 DQ12 D1
1.8
DQ13 D9
1.8
DQ14 B1
1.8
DQ15 B9
1.8 1.1
DADQS0
F7 LDQS CK J8
1.8 1.1
DADQS0_N
E8 LDQS CK K8
DADQS1 1.8 1.9
B7 L8
UDQS CS
1.8 1.8
6 DADQS1_N
A8 UDQS RAS K7
DAQM0 1.8 1.5
F3 LDM CAS L7
1.8 2.0
DAQM1
B3 UDM ODT K9
1.6
DACKE
K2 CKE
DAWE_N 1.8
K3 WE
1.3
DABA0
L2 BA0
2.0
DABA1
L3
BA1
0
A3
VSS
0
5
E3 VSS
0
J3 VSS
0
N1 VSS
0
P9 VSS
0
A7
VSSQ 1.9
VDD A1
0
1.9
B2 VSSQ VDD E1
1.9
0 VDD J9
B8 VSSQ 1.9
VDD M9
0
1.9
D2 VSSQ VDD R1
1.9
0 VDDQ A9
D8 VSSQ 1.9
VDDQ C1
0 1.9
E7 VDDQ C3
VSSQ
0 1.9
VDDQ C7
F2 VSSQ
1.9
VDDQ C9
0
F8 VSSQ 1.9
VDDQ E9
0
VSSQ 1.9
H2
4 VDDQ G1
0 1.9
H8 VSSQ VDDQ G3
1.9
0
VDDQ G7
VSSDL
J7
1.9
VDDQ G9
1.9
VDDL J1
0.9
J2
VREF
NC R8 NC6
NC R7
NC5
NC R3 NC4
NC L1 NC3
NC E2 NC2
3
NC A2 NC1
2
1
A B
H-11
C
DDR2 SCHEMATIC DIAGRAM
DAQ0
DAQ1
DAQ2
DAQ3
R2825 5.1
DACLK
DAQ4
R2826 5.1
DAQ5 DACLK_N
DAQ6
DAQ7
DAQ8
DAQ9
DAQ10
DAQ11
R2827
DAQ12
DACAS_N
DAQ13
27
DAQ14
DAQ15
DACLK
DACLK
DAQM0
DAQM1
DACLK_N
DACLK_N
DACS_N
DADQS0
DARAS_N
DADQS1
DACAS_N
DAODT
DADQS0_N
DADQS1_N
DAQ3
DAQ1
DAQ4
DAQ5
DAQ0
DAQ2
DAQ7
DAQ6
DAQ12
DAQ8
DAQ14
DAQ10
DAQ13
DAQ11
DAQ15
DAQ9
D1.8V
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DIGITAL PCB)
SCALER IC
IC2801 R8J66954BG
1.1 2.0
W20 SDCLK SDODT V18
1.1
SDCLK_N
W21
1.3
SDBA0 AA19
1.6 2.0
SDCKE
Y20 SDBA1 V17
1.9
SDCS_N
V21
1.8
V19 SDRAS_N
1.5
SDCAS_N
Y21
1.8 1.8
Y19 SDWE_N SDA0 U20
1.8
SDA1 AA18
1.8
SDA2 AA20
1.8
SDA3 AA17
1.8
1.8
P21 SDDM0
SDA4 U18
1.8
1.8
L21 SDDM1
V16
SDA5
1.8
SDDM2
NC AA14
SDA6 U21
1.8
NC AA11 SDDM3
SDA7 Y16
1.8
1.8
N18 SDDQS0
SDA8 T20
1.8
1.8
SDDQS1
K18
SDA9 Y17
1.8
NC V13 SDDQS2
SDA10 Y18
1.8
SDDQS3
NC V10
SDA11 W16
1.8
1.8
N19 SDDQS0_N
T18
SDA12
1.8
K19 SDDQS1_N
NC W13 SDDQS2_N
NC W10 SDDQS3_N
1.8
R20 SDDQ0
1.8
R21 SDDQ1
1.8
T21
SDDQ2
1.8
R18 SDDQ3
1.8
P18
SDDQ4
1.8
R19 SDDQ5
1.8
1.8
N20 SDDQ6 VCCQ18 K20
1.8 0
P20 SDDQ7 VSS K17
1.8 0
M20 SDDQ8 VSS L17
1.8 0
L18 SDDQ9 VSS M19
1.8 1.8
VCCQ18
L20 SDDQ10 M17
1.8 1.9
M18 SDDQ11 SDVREF0 N17
1.8 1.8
SDDQ12 VCCCQ18
L19 P19
1.8 0
N21 SDDQ13 VSS P17
1.8 0
K21 VSS R17
SDDQ14
1.8 1.8
M21 SDDQ15 VCCQ18 T19
1.8
NC Y14 SDDQ16 VCCQ18 T17
0
NC W15 SDDQ17 VSS U19
0
NC V14 SDDQ18 VSS U17
1.8
V15 SDDQ19 VCCQ18 V20
NC
1.8
NC AA16 SDDQ20 VCCQ18 W19
1.8
VCCQ18
NC Y15 SDDQ21 W18
0
VSS
NC AA15 SDDQ22 W17
0
NC Y13 SDDQ23 VSS AA21
0
V11 VSS U16
NC SDDQ24
0
NC W11 SDDQ25 VSS U15
1.8
NC Y11 SDDQ26 VCCQ18 U14
0
NC V12 SDDQ27 VSS W14
1.9
NC AA13 SDDQ28 SDVREF1 U13
1.8
NC AA12 SDDQ29 VCCQ18 W12
0
NC Y12 SDDQ30 VSS U12
0
NC AA10 SDDQ31 VSS U11
0
VSS Y10
1.8
VCCQ18 U10
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.
D E
F G
R2823 27
DARAS_N
R2824 27
DACKE
NR2805
CRA108270JV
DABA1
DAODT
DAA4
DAA12
NR2806
CRA108270JV
DAA8
DAA6
DAA0
DACS_N
NR2807
CRA108270JV
DAA2
DAWE_N
DABA0
DAA10
NR2808
CRA108270JV
DAA1
DAA9
DAA3
DAA7
NR2809
CRA108270JV
DAA11
DAA5
NC NC
NC NC
D1.8V
C2859
1 B
C2860
FROM REGULATOR2
10V 22 V-S
GND
D1.8V
F G
H
8
7
6
5
4
3
2
PCBDH0
CEG352
1
H
H-12