Sony MDS-SP55 Service Manual ▷ View online
33
33
MDS-SP55
– MAIN SECTION –
73 27 67 66 65 63 59 58 57
75 77 78 79 80
51 52 53 60 74
55 54
56
97
95
86
85
90
89
43 44
81 82 87 88
37 36 35 27
69
21
22
12
30
29
20
18
18
4
8
19
16
17
13
14
15
CONTROL
L3MODE
L3CLK
L3DATA
26
24
6
8
4
2
17
12
14
10
11
CN707
1
1
3 6
IC501
IC502
CD
IN 1
1
IC503
OUT
AUX
IN 2
1D-IN.
D-IN.0
D-OUT
512FS
ADDT
DADT
BCK
LRCK
H.+5V
M.+5V
+5V
H.+5V
M.+5V
+5V
+5V
SCTX
SCL
SDA
MNT0
MNT3
SWDT
WRPWR
LIMITIN
SRDT
MOD
PROTECT
XLATCH
REFRECT
SCLK
LDON
MNT2
XINT
SQSY
DIGRST
DQSY
MNT1
SENSE
CHAK-IN
PACK-OUT
PB-P
REC-P
LOAD-IN
LOAD-OUT
09
S907
S908
S909
ENTER/
YES
S9010
S9011
ENTER/
YES
z
REC
CD
SYNC
j
S901
S902
S903
S904
S905
S906
D921
D922 D923 D924
CLEAR
J
S
S
x
A
H
H
z
REC
SYNCHRO
REC
2
6
IC601(1/4)
IC601(2/4)
1
3
1
3
3
1
Q921-924
LED DRIVE
12
X601
22.579MHz
512FS
8
9
10
11
IC601(3/4,4/4)
CLOCK OSC
DATAO
DATAI
BCK
WS
WS
A/D
D/A
6
5
4
3
IC201
A/D,D/A CONVERTER
VINL1
VOUTL
VOUTR
VINL2
VINR1
VINR2
REC-L
REC-R
MD-L
MD-R
+UNREG(L)
IICDATA
IIC-CLK
PC PON
PDOWN
SYSTEM
CONTROL 3
H+5V
M+5V
D+5V
+3.3V
10
2
6
5
4
IC301
MOTOR DRIVE
OUT2
OUT1
IN 2
VZ
IN 1
Q301
BUFFER
Q302
SPEED SW
+3.3V
S981
JOG
DIAL
l
L
SX
SY
IC774
IIC EXTENDER
SYSCLK
I2CDATA
I2CCLK
I2CBUSY
P.DOWN
XINT
DQSY
DIGRST
SENS
MNT3
MNT2
MNT1
MNT0
SCL
SDA
PACK-OUT
PB-P
REC-P
LDOUT
LDIN
KEY0
LD-LOW
KEY1
LED PAUSE
LED PLAY
LED REC
LED SYNC
JOG0
JOG1
CHAK-IN
HOME
DQSY
DIGRST
SENS
MNT3
MNT2
MNT1
MNT0
SCL
SDA
PACK-OUT
PB-P
REC-P
CHAK-IN
SCTX
WRPWR
XLAT
MOD
LDON
SCLK
SRDT
SWDT
SQSY
L3MODE
L3CLK
L3DATA
RESET
REMITIN
PROTEXT
REFRECT
XINT
SCTX
WRPWR
XLATCH
MOD
LDON
SCLK
SRDT
SWDT
SQSY
LIMITIN
PROTEXT
REFRECT
D823
D824
IC822
RESET
IC821
+5V REG.
IC831
+5V REG.
BACK UP
VCC
IC701
MASTOR
CONTROL
BD
SECTION
(Page 32)
A
BD
SECTION
(Page 32)
B
BD
SECTION
(Page 32)
C
: PB
: REC
: REC
: PB(Digital)
: REC(Digital)
•
Signal Path
•
R-CH is omitted due to same as L-CH.
34
34
MDS-SP55
There are a few cases that the part isn’t mounted in
model is printed on diagram.
model is printed on diagram.
6-2. PRINTED WIRING BOARD – BD SECTION –
D101
A-1
D181
D-3
D183
D-3
IC103
B-1
IC123
D-2
IC171
D-1
Q102
B-1
Q103
B-1
Q104
B-1
IC101
A-3
IC121
C-3
IC124
C-3
IC152
B-1
IC181
C-1
IC192
D-1
Q101
B-3
Q162
B-3
Q163
B-3
Q181
C-1
Q182
C-2
Ref. No.
Location
• Semiconductor
Location
Ref. No.
Location
• Semiconductor
Location
(Page 39)
(Page 39)
35
35
MDS-SP55
6-3. SCHEMATIC DIAGRAM – BD (1/2) SECTION – • See page 31 for Waveforms. • See page 42 for IC Block Diagrams. • See page 45 for IC Pin Functions.
(Page 36)
(Page 36)
(Page 36)
(Page 36)
(Page 36)
(Page 36)
(Page 36)
R130
0
PIN FUNCTION
Note: The components identified by mark
0
or dotted line with mark
0
are critical for
safety.
Replace only with part number specified.
Replace only with part number specified.
36
36
MDS-SP55
6-4. SCHEMATIC DIAGRAM – BD (2/2) SECTION –
(Page 35)
(Page 35)
(Page 35)
(Page 35)
(Page 35)
(Page 35)
(Page 35)
(Page 37)
(Page 37)
BA033FP-E2
R198 0
PIN FUNCTION
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