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Memory2 - Akai CFTD2052 Service Manual

Lcd color television/dvd video player
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A
B
8
FROM/TO MPEG/MICON/DSP
SD_A0
SD_A1
SD_A2
SD_A3
SD_A4
SD_A5
SD_A6
SD_A7
7
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
SD_D12
SD_D13
SD_D14
6
SD_D15
RAMCS0#
RAMCS1#
RAMRAS#
RAMCAS#
SD_BA0
RAMDQM
RAMWE#
RAMCLK
HA0
HA1
HA2
HA3
HA4
HA5
HA6
HA7
5
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
HA18
HA19
HA20
HD0
HD1
HD2
HD3
HD4
HD5
4
HD6
HD7
HD8
HD9
HD10
HD11
HD12
HD13
HD14
HD15
MEMCS0
RD
WR
FROM REGULATOR2
3
P.CON+3.3V_D
GND
FROM AUDIO/VIDEO
RESET
2
1
A
B
G-3
C
MEMORY2 SCHEMATIC DIAGRAM
FLASH IC
8M
IC4007
SST39VF800A-70-4C-EKE
1.2
HA16
A16
C4064
3.3
VCCQ
0.1 F
0
VSS
0.7
HD15
DQ15
1.9
HD7
DQ7
1.3
HD14
DQ14
1.2
HD6
DQ6
0.6
HD13
DQ13
0.7
HD5
DQ5
0.8
HD12
DQ12
1.6
HD4
DQ4
C4062
3.3
VDD
0.1 F
1.6
HD11
DQ11
1.6
HD3
DQ3
1.3
HD10
DQ10
1.2
HD2
DQ2
1.4
HD9
DQ9
1.4
HD1
DQ1
0.9
HD8
DQ8
1.6
HD0
DQ0
2.6
RD
DE#
0
VSS
STANDARD
R4034
2.6
MEMCS0
CE#
2.2
2.5
HA0
A0
B4007
FCM2012H-102T04
B4008
FCM2012H-102T04
D_GND
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(DVD PCB)
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
C4040
1.6
HA9
A9
0.1 F
SD_D12
1.5
HA8
A8
SD_D11
0
HA19
A19
SD_D10
0
HA20
A20
SD_D9
C4041
3.3
WR
WE#
0.1 F
SD_D8
0
RESET
RP#
0.1
C4039
VPP
0.1 F
RAMDQM
0.1
R4041
WP#
RAMCLK
4.7K
0
HA19
3
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
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
D
E
F
G
64M SDRAM IC
IC4005
HY57V641620HGT-7
0
3.3
VSS
VDD
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
3.3
0
VDDQ
VSSQ
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
3.3
0
VDDQ
VSSQ
2.1
1.3
SD_D7
DQ8
DQ7
C4046
0
3.3
VSS
VDD
0.1 F
0
0
RAMDQM
NC
NC
LDQM
0
3.2
RAMWE#
UDQM
WE
1.5
3.2
RAMCAS#
CLK
CAS
R4048
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
F
G
H
8
7
6
5
4
3
2
PCB130
VMD327
1
H
G-4

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