Dvd Mpeg Pcb Assy(3/6) - Pioneer DVR-RT502-S Service Manual

1

3.12 DVD MPEG PCB ASSY(3/6)

QQ
3 7 63 1515 0
B 3/6
DVD MPEG PCB ASSY (A2J408HB10)
A
MEMORY BLOCK
B
C
TE
L 13942296513
D
E
www
FROM AV IN/OUT
B 6/6
F
NOTE:THE DC VOLTAGE EACH PART WAS
B 3/6
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
48
1
http://www.xiaoyu163.com
2
FROM/TO MPEG
RAMDAT31
RAMDAT30
RAMDAT29
RAMDAT28
RAMDAT27
RAMDAT26
RAMDAT25
RAMDAT24
RAMDAT23
RAMDAT22
RAMDAT21
RAMDAT20
RAMDAT19
RAMDAT18
RAMDAT17
RAMDAT16
RAMDAT15
RAMDAT14
RAMDAT13
RAMDAT12
RAMDAT11
RAMDAT10
RAMDAT9
RAMDAT8
RAMDAT7
RAMDAT6
RAMDAT5
B 2/6 RAMDAT4
RAMDAT3
RAMDAT2
RAMDAT1
RAMDAT0
RAMADD12
RAMADD11
RAMADD10
RAMADD9
RAMADD8
RAMADD7
RAMADD6
RAMADD5
RAMADD4
RAMADD3
RAMADD2
RAMADD1
RAMADD0
PCLK
RAMCLE
RAMDQM
RAMWE
RAMCAS
RAMRAS
RAMCS
RAMBA0
RAMBA1
PNVMCE
RESET
x ao
y
B4008
+3.3V
EBMS160808A102_RDC45
. i
GND
DVR-RT502-S
2
http://www.xiaoyu163.com
3
8
SDRAM IC
IC4004
C4153
3.3
VCC
0.01 B
RAMDAT0 0.1
DQ0
C4048
3.3
VCCQ
0.1 F
RAMDAT1 0.2
DQ1
0.1
RAMDAT2
DQ2
0
VSSQ
RAMDAT3 0.1
DQ3
RAMDAT4 0.1
DQ4
3.3
VCCQ
0.1
RAMDAT5
DQ5
RAMDAT6 0.2
DQ6
0
VSSQ
RAMDAT7 0.3
DQ7
C4049
3.3
VCC
0.1 F 0
RAMDQM
LDQM
RAMWE 3.3
WE
RAMCAS 3.3
CAS
RAMRAS 3.3
RAS
RAMCS 3.3
CS
1.3
RAMBA0
A13(BA0)
1.4
RAMBA1
A12(BA1)
RAMADD10 0.8
A10
RAMADD0 0.2
A0
RAMADD1 0.1
A1
0.1
RAMADD2
A2
RAMADD3 0.1
A3
C4052
3.3
VCC
0.1 F
C4154
0.001 B
Q Q
3 6 7 1 3
SDRAM IC
IC4005
C4155
3.3
VCC
RAMDAT16 0.01 B 0
DQ0
C4050
3.3
VCCQ
RAMDAT17 0.1 F 0
DQ1
0
RAMDAT18
DQ2
0
VSSQ
RAMDAT19 0
DQ3
0
RAMDAT20
DQ4
3.3
VCCQ
RAMDAT21 0
DQ5
RAMDAT22 0
DQ6
0
VSSQ
0
RAMDAT23
DQ7
C4051
3.3
VCC
0.1 F
RAMDQM 0
LDQM
RAMWE 3.1
WE
RAMCAS 3.1
CAS
3.0
RAMRAS
RAS
RAMCS 2.8
CS
RAMBA0 1.4
A13(BA0)
RAMBA1 1.4
A12(BA1)
RAMADD10 0.4
A10
0.4
RAMADD0
A0
RAMADD1 0.3
A1
RAMADD2 0.6
A2
RAMADD3 0.6
A3
C4053
3.3
VCC
0.1 F
C4156
u163
0.001 B
.
3
4
2 9 9 4 2 8
(128or256Mbit)
EM639165TS-7G
0
VSS
0.5 RAMDAT15
DQ15
0
VSSQ
0.6 RAMDAT14
DQ14
0.4
RAMDAT13
DQ13
C4055
3.3
VCCQ
0.1
0.5 F RAMDAT12
DQ12
0.6 RAMDAT11
DQ11
0
VSSQ
0.7
RAMDAT10
DQ10
0.5 RAMDAT9
DQ9
C4056
3.3
VCCQ
0.7 0.1 F RAMDAT8
DQ8
0
VSS
0
NC NC NC
0 RAMDQM
UDQM
1.5
CLK
3.3 RAMCLE
CKE
0 RAMADD12
A12
0
RAMADD11
A11
0 RAMADD9
A9
0.2 RAMADD8
A8
0 RAMADD7
A7
0.1 RAMADD6
A6
0.1
RAMADD5
A5
0.1 RAMADD4
A4
0
VSS
1 5 0 5 8 2 9 9 4
(128or256Mbit)
EM639165TS-7G
0
VSS
0.7 RAMDAT31
DQ15
0
VSSQ
0.1 RAMDAT30
DQ14
0.1 RAMDAT29
DQ13
C4057
3.3
VCCQ
0.1 F
0.1 RAMDAT28
DQ12
0.1
RAMDAT27
DQ11
0
VSSQ
0.1 RAMDAT26
DQ10
0.1 RAMDAT25
DQ9
C4058
3.3
VCCQ
0.2 0.1 F
RAMDAT24
DQ8
0
VSS
0
NC NC NC
16
0 RAMDQM
UDQM
1.5
CLK
3.3
RAMCLE
CKE
0.1 RAMADD12
A12
0.2 RAMADD11
A11
0.1 RAMADD9
A9
0.5 RAMADD8
A8
0.5
RAMADD7
A7
0.5 RAMADD6
A6
0.5 RAMADD5
A5
0.5 RAMADD4
A4
0
VSS
m
co
4
9 9
PCLK
2 8 9 9
PCLK