Sharp LC-26DV24U A Service Manual page 12

A B
8
DDR_SDRAM IC
IC2802 HY818TC256160BF-3S
DAA0 1.8 1.8
M8 A0 G8
DQ0
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
DAA10 1.9 1.8
M2 DQ10 D7
A10
1.8
DAA11 1.9
P7 A11 DQ11 D3
DAA12 1.9 1.8
R2 A12 DQ12 D1
1.8
DQ13 D9
1.8
DQ14 B1
1.8
DQ15 B9
DADQS0 1.8 1.1
F7 LDQS J8
CK
1.8 1.1
DADQS0_N
E8 LDQS CK K8
1.8 1.9
DADQS1
B7 UDQS CS L8
DADQS1_N 1.8 1.8
6
A8 UDQS K7
RAS
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
VSS
J3
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 VDDQ G3
VSSQ
1.9
0
VSSDL VDDQ G7
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-3
C
DDR SCHEMATIC DIAGRAM
DAQ0
DAQ1
DAQ2
DAQ3
DAQ4
DAQ5
DAQ6
DAQ7
DAQ8
DAQ9
DAQ10
DAQ11
DAQ12
DAQ13
DAQ14
DAQ15
DACLK
DACLK_N
DACS_N
DARAS_N
DACAS_N
DAODT
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
R2825 5.1 1.1
DACLK
W20 SDCLK
R2826 5.1
1.1
DACLK_N
W21 SDCLK_N
1.6
SDCKE
Y20
1.9
V21 SDCS_N
1.8
V19 SDRAS_N
R2827 27
1.5
DACAS_N
SDCAS_N
Y21
1.8
Y19
SDWE_N
DACLK
1.8
DAQM0
P21 SDDM0
1.8
DAQM1
L21 SDDM1
1.8
SDDM2
DACLK_N NC AA14
1.8
AA11 SDDM3
NC
1.8
DADQS0
N18 SDDQS0
1.8
DADQS1
SDDQS1
K18
1.8
NC V13 SDDQS2
1.8
NC V10 SDDQS3
1.8
DADQS0_N
N19 SDDQS0_N
DADQS1_N 1.8
K19 SDDQS1_N
1.8
NC W13 SDDQS2_N
1.8
W10 SDDQS3_N
NC
1.8
DAQ3
R20 SDDQ0
DAQ1 1.8
R21 SDDQ1
DAQ4 1.8
T21
SDDQ2
1.8
DAQ5
R18 SDDQ3
1.8
DAQ0
P18
SDDQ4
DAQ2 1.8
R19
SDDQ5
1.8
DAQ7
N20 SDDQ6
1.8
DAQ6
P20 SDDQ7
DAQ12 1.8
M20 SDDQ8
DAQ8 1.8
L18 SDDQ9
1.8
DAQ14
L20 SDDQ10
1.8
DAQ10
M18 SDDQ11
DAQ13 1.8
L19 SDDQ12
1.8
DAQ11
N21 SDDQ13
1.8
DAQ15
K21 SDDQ14
DAQ9 1.8
M21
SDDQ15
1.8
NC Y14 SDDQ16
1.8
NC W15 SDDQ17
1.8
NC V14 SDDQ18
1.8
V15 SDDQ19
NC
1.8
AA16 SDDQ20
NC
1.8
NC
Y15 SDDQ21
1.8
NC AA15 SDDQ22
1.8
Y13 SDDQ23
NC
1.8
NC V11 SDDQ24
1.8
W11 SDDQ25
NC
1.8
Y11 SDDQ26
NC
1.8
NC V12 SDDQ27
1.8
SDDQ28
NC AA13
1.8
NC AA12
SDDQ29
1.8
Y12 SDDQ30
NC
1.8
NC AA10 SDDQ31
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
R2824
R8J66954BG CRA108270JV
2.0
SDODT V18
1.3
SDBA0 AA19
CRA108270JV
2.0
SDBA1 V17
1.8
SDA0 U20
CRA108270JV
1.8
SDA1 AA18
1.8
SDA2 AA20
1.8
SDA3 AA17
1.8
SDA4 U18
1.8
SDA5 V16
CRA108270JV
1.8
SDA6 U21
1.8
SDA7 Y16
1.8
T20
SDA8
1.8
SDA9 Y17
1.8
SDA10 Y18
1.8
SDA11 W16
1.8 CRA108270JV
T18
SDA12
NC
NC
1.8
VCCQ18 K20
0
VSS K17
0
VSS L17
0
VSS M19
1.8
VCCQ18
M17
1.9
SDVREF0
N17
1.8
VCCCQ18 P19
0
VSS P17
0
VSS R17
1.8
VCCQ18 T19
1.8
VCCQ18 T17
0
VSS U19
0
VSS
U17
1.8
VCCQ18 V20
1.8
VCCQ18 W19
1.8
VCCQ18
W18
0
VSS W17
0
VSS AA21
0
VSS
U16
0
VSS U15
1.8
VCCQ18 U14
0
VSS W14
1.9
SDVREF1 U13
1.8
W12
VCCQ18
0
VSS U12
0
VSS
U11
0
VSS Y10
1.8
VCCQ18 U10
F G
H
8
27
DARAS_N
27
DACKE
NR2805
DABA1
DAODT
DAA4
DAA12
NR2806
DAA8 7
DAA6
DAA0
DACS_N
NR2807
DAA2
DAWE_N
DABA0
DAA10
NR2808
DAA1
DAA9
DAA3
DAA7
6
NR2809
DAA11
DAA5
NC
NC
5
D1.8V
4
3
C2859
1 B
6.3V(2125)
C2860
10V 22 V-S
FROM REGULATOR2
2
GND
D1.8V
PCBDH0
CEH424
1
H
H-4