Dsp - Memorex MVD4540 Service Manual

A B
DSP SCHEMATIC DIAGRAM
(DVD MAIN PCB)
8
7
6
C2011
1 F
(21-25)
C2018
2.2 F (21-25)
R2005
47K
FROM/TO READ CHANNEL
C2019 0.1 F
A_GND
GND
5
VRFD
C2060
A+3V
0.1 B
RFCD_DVD
SLCD1
C2004 0.001 B
RFZI
TEZI
C2005 0.001 B
FEI
TEI
RESB
4
RFRP
C2002
C2006
C2007
0.001 B
0.001 B
2.2 F
FOO
(21-25)
TRO
C2001 330P CH
C2003 0.022 B C2008 0.1 B
FMO
DMO
TEBC
FEBC
DPDC
EQBC
3
DFCT
VRCK
SCO
SCL
SCB
DMFG
ASLCO
RESET
D_GND
GND
2
SERVO
SHUT DOWN
Q2001
2SC3326_B
1.9 1.7
0
1
A B
G-3
C
C2036
0.1 F
C2031
150P CH
R2009
W201 0
47K
W202 0
132 131 130 129 128 127 126 125 124 123 122 121 120 119
1.7
1.7
1.7
PVREF
1.0
VCOREF
LPFN
C2024 100P CH 1.0 133
VCOF
3.3 134 LPFO
PVOO
3.8
SLCO1
2.5
SLCO2
NC
3.3
TEST2
W207
1.8
RFCD
W206
1.8
RFDVD
C2027 2.2 F 3.3
0
AVDD
R2016 100 (21-25) 1.7
RFCT
1.7
RFZI
W208 C2023 0.1 B 1.7
TEZI
0 1.7
AWIN
0
AVSS
1.7
FEI
1.7
TEI
1.7
RFSB
1.7
RFRP
0
AVSS
W205 1.7
TEPI
W204
0 1.7
EXTED
0 1.7
VREF
R2026 2.2K 1.7
FOO
R2018 2.2K
1.7
TRO
3.3
AVDD
R2004 10K
R2011 22K 1.0
AWCTL
R2021 10K 1.7
FMO
R2012 10K 2.3
DMO
R2022 10K 1.7
TEBC
R2013 10K 1.7
FEBC
R2023 10K 2.0
DPDC
R2014 10K 2.5
EQBC
R2024 10K 0.8
ANMON
3.2
/DFCT
R2015 3.3K 1.6
VRCK
0
VSS1
1.0 FGIN
175
SCO
0
176 ASLCP
SCL
R2010 C2026 0
SCB
1.3
1.7
10K 0.1 F
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
C
D E
NC
0 2.5 2.5 2.5 2.5 0 2.5 2.5 2.5 2.5 0 4.6
44 43 42 41 40 39 38 37 36 35 32 31
1 2 3 4 5 6 7 8 9 10 13 14
5.1 2.5 2.5 2.5 2.5 5.1 2.5 2.5 2.5 2.5 0 0 4.8
NC NC
118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89
0 DPA8
0.7
DPA7
0.7
DPA6
BA6
0.7 DPA5
BA5
88 BA8
0.7
DPA4
BA4
87 BA7 0
VSS2
0.6 DPA3
BA3
0.6 DPA2
BA2
0.6
DPA1
BA1
0.7 DPA0
BA0
3.2
VDD1
5.1
BUFXG
0
DIGI
0
/PDAK
5.1
VDD2
2.6
PDCK
3.3
/PDRQ
5.1
/PSYC
5.1
PD8
0.9
PD7
0.9
PD6
0.9
PD5
DSP IC
0
IC2001 VSS1
0.9
OEC6068A
PD4
0.9
PD3
0.9
PD2
0.9
PD1
0
VSS2
0.9
PD0
3.2
VDD1
2.7
VMCK NC
2.6
SMCK NC
0.1
NC
NC
0.2
NC
NC
5.1
VDD2
2.5
MD7
2.2
MD6
2.2
MD5
2.2
MD4
46 MD0 2.3
MD3
2.0
45 /MDNT
MD2
2.6
MD1
1.9
5.1 R2050
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
R2046
470K
D E
F G
R2006 1K
4.6 0.3 0 0.6 0.6 0.6 0.6 0
30 29 28 27 26 25 24 23
15 16 17 18 19 20 21 22
C2049
3.9 0 0.6 0.6 0.6 0.6 5.1
NC
10P CH
C2048
0.1 F
D_GND
A_GND
C2047
1 F
(21-25)
C2046
W203
0.1 F
52
0 R2052 10K
C2050
0.1 F
C2051
HD7
0.1 F
HD6
HD5
HD4
HD3
HD2
HD1
HD0
4.7K
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F G
H
8
7
6
FROM AUDIO/VIDEO
GND
VDD+5V
VDD+3.3V
GND
5
SCLK2
TO MPEG
DVDSTB
DVDVALID
DVDSOS
DVDERR
DVDDAT7
4
DVDDAT6
DVDDAT5
DVDDAT4
DVDDAT3
DVDDAT2
DVDDAT1
DVDDAT0
3
FROM/TO SYSCON1
HD7
HD6
HD5
HD4
HD3
HD2
HD1
HD0
DNT
SVCEX
MWR
MRD
2
HA8
DISKWDI
FCSEAR
PCB130
VMA249
1
H
G-4