Main Section - Sony MDS-SP55 Service Manual

– MAIN SECTION –
IC601(1/4)
IC501
CD
1
IN 1
5 6
AUX
1
IN 2
3 4
IC502 IC601(2/4)
1D-IN.
D-IN.0
D-OUT
512FS
ADDT
A
DADT
BD
SECTION
(Page 32) BCK
LRCK
H.+5V H.+5V
M.+5V M.+5V
+5V +5V
SCTX
SCL
SDA
MNT0
MNT3
SWDT
WRPWR
LIMITIN
SRDT
MOD
B
PROTECT
XLATCH
BD
REFRECT
SECTION
SCLK
(Page 32)
LDON
MNT2
XINT
SQSY
DIGRST
DQSY
MNT1
SENSE
CHAK-IN
C
PACK-OUT
PB-P
BD
REC-P
SECTION
LOAD-IN
(Page 32)
LOAD-OUT
09
X601
22.579MHz
512FS
8 9 10 11
IC601(3/4,4/4)
CLOCK OSC
12
IC201
A/D,D/A CONVERTER
DATAO
A/D
18
DATAI
D/A
19
BCK
16
CONTROL
WS
17
13 14 15
73 27 67 66 65 63 59 58 57 37 36 35 27 69 21 22
75 77 78 79 80 81 82 87 88 51 52 53 60 74 55 54
IC301
MOTOR DRIVE
OUT2 IN 2
10 6
OUT1 IN 1
2 5
Q301 Q302
VZ 4
BUFFER SPEED SW
VINL1
2
VINL2
6
VINR1
4
VINR2
8
VOUTL
26
VOUTR
24
H+5V
M+5V
D+5V
+3.3V
12
IC701
MASTOR
CONTROL
56 97 95
S907 S908 S909 S9010 S9011
ENTER/ ENTER/ CD
zREC j
YES YES SYNC
S901 S902 S903 S904 S905 S906
CLEAR A x S H J
33 33
1
IC503
CN707
6
8
4
2
17
IC831
3 1
+5V REG.
D823
IC822 IC821
1 3 3 1
RESET +5V REG.
D824
VCC
12
30
I2CDATA
14
I2CCLK 29
10
I2CBUSY 20
11
18
P.DOWN
86 85 90 89 43 44
S981
JOG
DIAL
l L
Q921-924
LED DRIVE
3 6
+3.3V
D921 D922 D923 D924
IC774
IIC EXTENDER
S H zREC
SYNCHRO
REC
MDS-SP55
OUT
REC-L
REC-R
MD-L
MD-R
SYSTEM
+UNREG(L)
CONTROL 3
IICDATA
IIC-CLK
PC PON
PDOWN
• R-CH is omitted due to same as L-CH.
• Signal Path
: PB
: REC
: PB(Digital)
: REC(Digital)