Toshiba MD20Q42 Service Manual page 42

A B
8
FROM/TO MPEG/MICON/DSP
SD_A0
SD_A1
SD_A2
SD_A3
SD_A4
SD_A5
7
SD_A6
SD_A7
SD_A8
SD_A9
SD_A10
SD_D0
SD_D1
SD_D2
SD_D3
SD_D4
SD_D5
SD_D6
SD_D7
SD_D8
SD_D9
SD_D10
SD_D11
SD_D12
6
SD_D13
SD_D14
SD_D15
RAMCS0#
RAMRAS#
RAMCAS#
SD_BA0
RAMDQM
RAMWE#
RAMCLK
RAMCKE
HA0
HA1
HA2
HA3
HA4
HA5
5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
HA18
HA19
HD0
HD1
HD2
HD3
4
HD4
HD5
HD6
HD7
HD8
HD9
HD10
FLASHCS
HD11
HD12
HD13
HD14
HD15
B4007
MEMCS0 MMZ1608R102CT
RD
WR
B4008
MMZ1608R102CT
P.CON+3.3V
3
(W809)
GND
(D_GND)
FROM AUDIO/VIDEO
RESET
2
MEMCS0
1
A B
G-3
C D
MEMORY SCHEMATIC DIAGRAM
FLASH IC 8M
IC4007
SST39VF1601-70-4C-EKE
1.2 1.7
HA16 HA15
A16 A15
C4064
3.3 1.0
HA14
VCCQ A14
0.1 F
0 0.8
HA13
GND A13
0.7 1.5
HD15 HA12
DQ15 A12
1.9 2.5
HD7 HA11
DQ7 A11
1.3 1.3
HD14 HA10
DQ14 A10
1.2 1.6
HD6 HA9
DQ6 A9
0.6 1.5
HD13 HA8
DQ13 A8
0
0.7
HD5 (W837) HA19
DQ5 A19
0
0.8
HD12
DQ12 A20 NC
1.6 3.3
HD4 WR
DQ4 WE#
C4062
0
3.3
RESET
VCC RP#
0.1 F
0.1
C4039
1.6
HD11
DQ11 VPP
0.1 F
0.1
R4041
1.6
HD3
DQ3 WP#
4.7K
0
1.3
HD10 HA19
DQ10 A19
(W838)
1.2 1.6
HD2 HA18
DQ2 A18
1.4 0.7
HD9 HA17
DQ9 A17
1.4 1.4
HD1 HA7
DQ1 A7
0.9 1.6
HD8 HA6
DQ8 A6
1.6 1.6
HD0 HA5
DQ0 A5
2.6 1.3
RD HA4
OE# A4
0 1.7
HA3
GND A3
2.6 2.5
HA2
CE# A2
2.5 1.6
HA0 HA1
A0 A1
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
(DVD PCB)
SD_D15
SD_D14
SD_D13
SD_D12
SD_D11
SD_D10
SD_D9
SD_D8
RAMDQM
RAMCLK
5
RAMCKE
SD_A9
SD_A8
SD_A7
SD_A6
SD_A5
SD_A4
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
E
F G
16M SDRAM
IC4009 M12L16161A-7TG
C4050
0 3.3
VSS VDD
0.1 F
3.3 3.3 SD_D0
DQ15 DQ0
3.3 3.3 SD_D1
DQ14 DQ1
3.3 3.3
VSSQ VSSQ
3.3 3.3 SD_D2
DQ13 DQ2
C4109
0.1 F 3.3 3.3 SD_D3
DQ12 DQ3
C4040 C4045
3.3 3.3
VDDQ VDDQ
0.1 F 0.1 F
3.3 3.3 SD_D4
DQ11 DQ4
3.3 3.3 SD_D5
DQ10 DQ5
3.3 0
VSSQ VSSQ
3.3 3.3 SD_D6
DQ9 DQ6
3.3 3.3 SD_D7
DQ8 DQ7
C4041 C4046
3.3 3.3
VDDQ VDDQ
0.1 F 0.1 F
0
3.3 RAMDQM
NC NC LDQM
3.3 3.3 RAMWE#
UDQM /WE
2.3 3.3 RAMCAS#
CLK /CAS
3.3
R4048
3.3 RAMRAS#
CKE /RAS
47K
0
3.3 RAMCS0#
NC NC /CS
3.3 3.3 SD_BA0
A9 BA
3.3 3.3 SD_A10
A8 A10/AP
3.3 3.3 SD_A0
A7 A0
3.3 3.3
SD_A1
A6 A1
3.3 3.3 SD_A2
A5 A2
3.3 3.3 SD_A3
A4 A3
C4047
0 3.3
VSS VDD
0.1 F
F G
H
8
7
6
5
4
3
2
PCB130
DME060
1
H
G-4