Toshiba SD-25VLSR Service Manual page 127

A B
8
FROM/TO MPEG/MICON/DSP
SD_A0
SD_A1
SD_A2
SD_A3
SD_A4
7 SD_A5
SD_A6
SD_A7
SD_A8
SD_A9
SD_A10
SD_A11
SD_D0
SD_D1
SD_D2
SD_D3
SD_D4
SD_D5
SD_D6
SD_D7
SD_D8
SD_D9
SD_D10
SD_D11
6
SD_D12
SD_D13
SD_D14
SD_D15
RAMCS0#
RAMCS1#
RAMRAS#
RAMCAS#
SD_BA0
RAMDQM
RAMWE#
RAMCLK
HA0
HA1
HA2
HA3
HA4
HA5
5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
HA18
HA19
HA20
HD0
HD1
HD2
HD3
4
HD4
HD5
HD6
HD7
HD8
HD9
HD10
HD11
HD12
HD13
HD14
HD15
MEMCS0
RD
WR
P.CON+3.3V
3
GND
FROM AUDIO/VIDEO
RESET
2
1
A B
H-3
C D
MEMORY SCHEMATIC DIAGRAM
FLASH IC 8M
IC4007 SST39VF800A-70-4C-EK-D
1.2 1.7
HA16
A16 A15
C4064
3.3 1.0
VCCQ A14
0.1 F
0 0.8
VSS A13
0.7 1.5
HD15
DQ15 A12
1.9 2.5
HD7
DQ7 A11
1.3 1.3
HD14
DQ14 A10
1.2 1.6
HD6
DQ6 A9
0.6 1.5
HD13
DQ13 A8
0
0.7
HD5
DQ5 A19
0
0.8
HD12
DQ12 A20
1.6 3.3
HD4
DQ4 WE#
C4062
0
3.3
VDD RP#
0.1 F
0.1
1.6
HD11
DQ11 VPP
0.1
1.6
HD3
DQ3 WP#
0
1.3
HD10
DQ10 A19
1.2 1.6
HD2
DQ2 A18
1.4 0.7
HD9
DQ9 A17
1.4 1.4
HD1
DQ1 A7
0.9 1.6
HD8
DQ8 A6
1.6 1.6
HD0
DQ0 A5
2.6 1.3
RD
DE# A4
0 1.7
VSS A3
W854 2.6 2.5
MEMCS0
CE# A2
STANDARD
2.5 1.6
HA0
A0 A1
B4007
FCM2012H-102T04
B4008
FCM2012H-102T04
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
(DVD PCB)
HA15
HA14
HA13 IC4005
0
HA12
SD_D15 1.2
0
HA11
SD_D14 1.5
HA10
SD_D13 2.0
C4040
3.3
HA9
0.1 F
SD_D12 0.4
HA8
0.5
SD_D11
HA19 0
1.7
SD_D10
HA20
SD_D9 0.8
C4041
3.3
WR
0.1 F
SD_D8 2.1
RESET
0
C4039 0
NC
0.1 F
RAMDQM 0
R4041
1.5
RAMCLK
4.7K
R4048
HA19 2 3.3
47K
0
NC
HA18
SD_A11 0
0.2
HA17 SD_A9
SD_A8 0.2
HA7
1.0
SD_A7
HA6 SD_A6 1.0
1.0
SD_A5
HA5
0.9
SD_A4
HA4 0
HA3
HA2
HA1
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
E
F G
64M SDRAM IC
HY57V641620HGT-7
3.3
VSS VDD
1.5 SD_D0
DQ15 DQ0
C4050
3.3
VSSQ VDDQ
0.1 F
0.8 SD_D1
DQ14 DQ1
0.4 SD_D2
DQ13 DQ2
0
VDDQ VSSQ
0.5 SD_D3
DQ12 DQ3
0.9
SD_D4
DQ11 DQ4
C4045
3.3
VSSQ VDDQ
0.1 F
1.3
SD_D5
DQ10 DQ5
0.8 SD_D6
DQ9 DQ6
0
VDDQ VSSQ
1.3 SD_D7
DQ8 DQ7
C4046
3.3
VSS VDD
0.1 F
0
RAMDQM
NC LDQM
3.2 RAMWE#
UDQM WE
3.2
RAMCAS#
CLK CAS
0.2 RAMRAS#
CKE RAS
3.1
RAMCS1#
NC CS
0.5 SD_BA0
A11 BA0
3.1
RAMCS0#
A9 BA1
1.9 SD_A10
A8 A10/AP
0.2
SD_A0
A7 A0
0 SD_A1
A6 A1
0
SD_A2
A5 A2
0.3
SD_A3
A4 A3
C4047
3.3
VSS VDD
0.1 F
F G
H
8
7
6
5
4
3
2
PCB130
VMD342
1
H
H-4