Toshiba 15LV505 Service Manual page 79

A B
8
DDR_SDRAM IC
IC2802 HYB18TC256160BF-3S
DAA0 1.8 1.8
M8 A0 G8
DQ0
DAA1 1.8 1.8
M3 A1 DQ1 G2
DAA2 1.8 1.8
M7 A2 DQ2 H7
DAA3 1.8 1.8
N2 A3 DQ3 H3
DAA4 1.8 1.8
N8 H1
A4 DQ4
DAA5 1.8 1.8
N3 A5 DQ5 H9
DAA6 1.8 1.8
N7 A6 DQ6 F1
7 DAA7 1.8 1.8
P2 A7 DQ7 F9
DAA8 1.8 1.8
P8 A8 C8
DQ8
DAA9 1.8 1.8
P3 A9 DQ9 C2
DAA10 1.8 1.8
M2 DQ10 D7
A10
DAA11 1.8 1.8
P7 A11 DQ11 D3
1.8 1.8
DAA12
R2 A12 DQ12 D1
1.8
DQ13 D9
1.8
DQ14 B1
1.8
DQ15 B9
DADQS0 1.8 1.6
F7 LDQS J8
CK
DADQS0_N 1.8 1.6
E8 LDQS CK K8
6
DADQS1 1.8 1.8
B7 UDQS CS L8
DADQS1_N 1.8 1.8
A8 UDQS RAS K7
DAQM0 1.8 1.8
F3 L7
LDM CAS
DAQM1 1.8 1.8
B3 UDM ODT K9
1.8
DACKE
K2 CKE
DAWE_N 1.8
K3 WE
DABA0 1.8
L2 BA0
DABA1 1.8
L3 BA1
5
0
A3
VSS
0
E3
VSS
0
J3 VSS
0
N1 VSS
0
P9 VSS
0
A7 VSSQ 1.8
VDD A1
0 1.8
B2 VSSQ VDD E1
1.8
0 VDD J9
B8 VSSQ 1.8
VDD M9
0 1.8
D2 VSSQ VDD R1
1.8
0 VDDQ A9
D8 VSSQ 1.8
VDDQ C1
0 1.8
E7 VDDQ C3
VSSQ
1.8
0
VDDQ C7
F2
VSSQ 1.8
VDDQ C9
4 0
F8 VSSQ 1.8
VDDQ E9
0
1.8
VSSQ
H2
VDDQ G1
0 1.8
H8 VDDQ G3
VSSQ
1.8
0
VSSDL VDDQ G7
J7
1.8
VDDQ G9
1.8
VDDL J1
0.9
J2
VREF
NC R8 NC6
NC R7 NC5
NC R3
NC4
NC L1 NC3
3
NC E2 NC2
NC A2 NC1
2
1
A B
H-23
C D
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
DACLK 1.6
W20 SDCLK
R2826 5.1
DACLK_N 1.6
W21 SDCLK_N
1.8
SDCKE
Y20
1.8
V21 SDCS_N
1.8
V19 SDRAS_N
R2827
1.8
DACAS_N
SDCAS_N
Y21
27 1.8
Y19
SDWE_N
DAQM0 1.8
P21 SDDM0
DAQM1 1.8
L21 SDDM1
0
SDDM2
NC AA14
0
NC AA11 SDDM3
DADQS0 1.8
N18 SDDQS0
DADQS1 1.8
SDDQS1
K18
0
NC V13 SDDQS2
0
NC V10 SDDQS3
DADQS0_N 1.8
N19 SDDQS0_N
1.8
DADQS1_N
K19 SDDQS1_N
0
NC W13 SDDQS2_N
0
NC W10 SDDQS3_N
DAQ3 1.8
R20 SDDQ0
1.8
DAQ1
R21 SDDQ1
DAQ4 1.8
T21
SDDQ2
DAQ5 1.8
R18 SDDQ3
1.8
DAQ0
P18
SDDQ4
DAQ2 1.8
R19
SDDQ5
DAQ7 1.8
N20 SDDQ6
DAQ6 1.8
P20 SDDQ7
DAQ12 1.8
M20 SDDQ8
DAQ8 1.8
L18 SDDQ9
DAQ14 1.8
L20 SDDQ10
1.8
DAQ10
M18 SDDQ11
DAQ13 1.8
L19 SDDQ12
DAQ11 1.8
N21 SDDQ13
DAQ15 1.8
K21 SDDQ14
DAQ9 1.8
M21
SDDQ15
1.8
NC Y14 SDDQ16
1.8
NC W15 SDDQ17
1.8
NC V14 SDDQ18
1.8
NC V15 SDDQ19
1.8
NC AA16 SDDQ20
1.8
NC Y15 SDDQ21
1.8
NC AA15 SDDQ22
1.8
NC Y13 SDDQ23
1.8
NC V11 SDDQ24
1.8
SDDQ25
NC W11
1.8
NC Y11 SDDQ26
1.8
NC V12 SDDQ27
1.8
SDDQ28
NC AA13
1.8
NC AA12
SDDQ29
1.8
NC Y12 SDDQ30
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.
E
F G
R2823 27
DARAS_N
R2824 27
NR2805
R8J66954BG
CRA108270JV
1.8
SDODT V18
1.8 NR2806
SDBA0 AA19
CRA108270JV
1.8
SDBA1 V17
DACS_N
1.8 NR2807
SDA0 U20
CRA108270JV
1.8
SDA1 AA18
DAWE_N
1.8
SDA2 AA20
1.8
SDA3 AA17
1.8
SDA4 U18
NR2808
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 NR2809
SDA11 W16
CRA108270JV
1.8
T18
SDA12
NC NC
NC NC
1.8
VCCQ18 K20
0
VSS K17
0
VSS L17
0
VSS M19
1.8
VCCQ18
M17
0.9
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
0.9
SDVREF1 U13
1.8
W12
VCCQ18
0
VSS U12
0
VSS U11
0
VSS Y10
1.8
VCCQ18 U10
C2859
1 B
6.3V(2125)
F G
H
8
DACKE
DABA1
DAODT
DAA4
DAA12
7
DAA8
DAA6
DAA0
DAA2
DABA0
DAA10
DAA1
DAA9
6
DAA3
DAA7
DAA11
DAA5
5
FROM/TO REGULATOR
GND
D1.8V
4
3
2
PCBDH0
CEH420
1
H
H-24