Memorex MVD4540B Service Manual page 50

Dvd video player & vhs video cassette recorder
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A
B
8
7
FROM/TO MPEG/MICON
SD_A10
SD_A11
6
SD_D10
SD_D11
SD_D12
SD_D13
SD_D14
SD_D15
RAMCS0#
RAMCS1#
RAMRAS#
RAMCAS#
SD_BA0
5
RAMDQM
RAMWE#
RAMCLK
4
3
MEMCS0
P.CON+3.3V
2
FROM AUDIO/VIDEO
1
A
B
G-3
C
SST39VF800A-70-4C-EK
1.2
HA16
A16
SD_A0
SD_A1
C4064
3.3
SD_A2
VCCQ
SD_A3
0.1 F
SD_A4
0
SD_A5
VSS
SD_A6
SD_A7
0.7
SD_A8
HD15
DQ15
SD_A9
1.9
HD7
DQ7
SD_D0
SD_D1
1.3
SD_D2
HD14
DQ14
SD_D3
SD_D4
1.2
SD_D5
HD6
DQ6
SD_D6
SD_D7
0.6
SD_D8
HD13
DQ13
SD_D9
0.7
HD5
DQ5
0.8
HD12
DQ12
1.6
HD4
DQ4
C4062
3.3
VDD
0.1 F
1.6
HD11
DQ11
HA0
HA1
1.6
HA2
HD3
DQ3
HA3
HA4
1.3
HA5
HD10
DQ10
HA6
HA7
1.2
HA8
HD2
DQ2
HA9
HA10
1.4
HA11
HD9
DQ9
HA12
HA13
1.4
HA14
HD1
DQ1
HA15
HA16
0.9
HA17
HD8
DQ8
HA18
HA19
1.6
HA20
HD0
DQ0
HD0
HD1
2.6
HD2
RD
DE#
HD3
HD4
0
HD5
VSS
HD6
HD7
W854
2.6
HD8
MEMCS0
CE#
HD9
HD10
2.5
HD11
HA0
A0
HD12
HD13
HD14
B4007
HD15
FCM2012H-102T04
RD
WR
B4008
FCM2012H-102T04
D_GND
RESET
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
MEMORY SCHEMATIC DIAGRAM
(DVD PCB)
FLASH IC
IC4007
8M
1.7
HA15
A15
1.0
HA14
A14
0.8
HA13
A13
1.5
HA12
A12
SD_D15
2.5
HA11
A11
SD_D14
1.3
HA10
A10
SD_D13
1.6
HA9
A9
SD_D12
1.5
HA8
A8
SD_D11
0
HA19
A19
SD_D10
0
HA20
A20
SD_D9
3.3
WR
WE#
SD_D8
0
W835
RESET
RP#
0.1
C4039
W828
VPP
0.1 F
RAMDQM
0.1
R4041
W829
WP#
RAMCLK
4.7K
0
W837
HA19
A19
1.6
HA18
A18
SD_A11
0.7
HA17
SD_A9
A17
SD_A8
1.4
HA7
A7
SD_A7
1.6
HA6
SD_A6
A6
SD_A5
1.6
HA5
A5
SD_A4
1.3
HA4
A4
1.7
HA3
A3
2.5
HA2
A2
1.6
HA1
A1
D
E
F
G
64M SDRAM IC
IC4005
M12L64164A-7T
C4044
0
3.3
VSS
VDD
0.1 F
1.2
1.5
SD_D0
DQ15
DQ0
C4050
0
3.3
VSSQ
VDDQ
0.1 F
1.5
0.8
SD_D1
DQ14
DQ1
2.0
0.4
SD_D2
DQ13
DQ2
C4040
3.3
0
VDDQ
VSSQ
0.1 F
0.4
0.5
SD_D3
DQ12
DQ3
0.5
0.9
SD_D4
DQ11
DQ4
C4045
0
3.3
VSSQ
VDDQ
0.1 F
1.7
1.3
SD_D5
DQ10
DQ5
0.8
0.8
SD_D6
DQ9
DQ6
C4041
3.3
0
VDDQ
VSSQ
0.1 F
2.1
1.3
SD_D7
DQ8
DQ7
C4046
0
3.3
VSS
VDD
0
0.1 F
0
RAMDQM
NC
NC
LDQM
0
3.2
RAMWE#
UDQM
WE
1.5
3.2
RAMCAS#
CLK
CAS
R4048
2
3.3
0.2
RAMRAS#
CKE
RAS
47K
0
3.1
RAMCS1#
NC
NC
CS
0
0.5
SD_BA0
A11
BA0
0.2
3.1
RAMCS0#
A9
BA1
0.2
1.9
SD_A10
A8
A10/AP
1.0
0.2
SD_A0
A7
A0
1.0
0
SD_A1
A6
A1
1.0
0
SD_A2
A5
A2
0.9
0.3
SD_A3
A4
A3
C4047
0
3.3
VSS
VDD
0.1 F
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
F
G
H
8
7
6
5
4
3
2
PCB130
VMC298
1
H
G-4

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