Sony MDS-PC1 Service Manual ▷ View online
– 47 –
– 48 –
MDS-PC1
– MAIN SECTION –
18
5
1
IC352
SQSY
DQSY
20
5
6
10
2
4
LOAD-IN
LOADING MOTOR
DRIVE
IC311
DRIVE
DRIVE
LOADING
SW
Q311, 312
DIG-RST
XOUT
67
13
15
X402
7MHz
SCLK
SWDT
XLAT
SYSTEM CONTROL
IC401
SWDT
27
18
DADT
RES
I/O
25 28 26
10 11
CPU INTERFACE
19 20 21
22
D/A
CONVERTER
R-ch
17
16
+ L1
– L2
+ R1
+ R1
– R2
41
39
30
32
15
A/D
CONVERTER
55
56
1
2
I/O
A/D, D/A CONVERTER
IC201
12
15
4
97
95
94
MATRIX
SW
6
19
82
81
DISPLAY DRIVER
IC701
FL701
FLUORESCENT
INDICATOR
TUBE
AC
LPF
1
MUTE
FRONT-END
IC101
MUTE
SW
Q306
R-ch
MUTE
Q102
HEADPHONE
AMP
IC308
RV701
PHONE LEVEL
J401
S-LINK
CONTROL A1
R-ch
R-ch
J101
21
22
6
BACK UP
4
+5V REG
+3.3V REG
+5V REG
5
1
1
5
+3V REG
IC192
+3V
(BD)
PH +5V
SYS +3.3V
ANA +5V
3
SWITCHING REG
IC501
2
12
SRESET
3
1
+6V REG
IC541
+6V
RECT
D005,
006
RECT
D003,
004
–B
+B
2
3
–6V REG
IC551
–6V
1
3
–32V REG
IC310
–32V
BUFFER
IC314 (2/2)
BACK +3.3V
13
10
AC
AEP,UK
SP
MAIN
POWER
S301
VOLTAGE
SELECTOR
S301
AC
FL701
AC
IN
TR001
POWER
TRANSFORMAER
R-ch
PHONES
J701
J702
CONTROL A1
25
26
R-ch
INLM
INLP
INLP
INRP
INRM
INRM
X201
22MHz
35
36
XIN
XOUT
256CK
SCLK
XLAT
XLAT
48
ADA RES
49
AMUTE
CONTROL A1 OUT
CONTROL A1 IN
MONO/ST
KEY0
KEY1
100
KEY2
21
22
JOG1
JOG0
83
LED0 (POWER)
LED DRIVE
Q701
Q203
LEVEL SHIFT
STANDBY
D701
3 RM
SIRCS
RECEIVER
IC702
REMOCOM
37
35
34
62
63
61
60
4
39
40
54
FLCLK
FLDATA
FLCS
P DOWN
SCK
SDATA
CS
RST
S1
S36
D1
D15
50
CLOCKSET1
CLOCKSET0
STBY
XIN
56 LD LOW
55 LDOUT
73 MOD
LDIN
54
69
75
LDON
WR PWR
65
32
33
31
71
76
68
66
77
MNT3 (SLOCK)
MNT2 (XBUSY)
MNT1 (SHOCK)
MNT0 (FOK)
80
XINT
SCTX
SQSY
DQSY
MNT3
MNT2
MNT1
MNT0
DOUT
MCK1
BCK
LRCK
512FS
SLOCK
XBUSY
78 SDA
79
SCL
LOAD-OUT
SDA
SCL
XRST
MOD
WRPWR
LDON
74
70
72
51
53
LIMIT-IN
REFLECT
PROTECT
CHACK IN
PACK-OUT
60
59
PB-P
REC-P
LIMIT
REFLECT
PROTECT
CHACK IN
PACK-OUT
PB-P
REC-P
SENS
SRDT
SCLK
SWDT
XLAT
SENS
SRDT
SCLK
SWDT
XLATCH
BCK
LRCK
512FS
BCK
LRCK
512FS
ADDT
DADT
SCTX
DADT
SCTX
XINT
DIN
8
DIGITAL
INPUT SELECTOR
IC315
86
OPT SEL
91
88
TIMER SW
SOURCE SW
16 DPD
24
23
14
REC LEVEL
RV702
3
1
RECT
D001,
D002
D001,
D002
RECT
D007,
D008
D007,
D008
BD
SECTION
09
+B
BUFFER
IC314 (1/2)
DIGITAL
IN
DIGITAL
OUT
1
13
1
3
2
4
BA501
LITHIUM
BATTERY
RECT
D009
+3.3V
(DIN)
PH +5V
IC353
3
CONTROL A1 DRIVER
Q485
87
7
2
5
12
3 RST
SYSTEM RST
RESET
IC502
L
LINE
(ANALOG)
OUT
IN
R
L
R
• R-CH is omitted.
• SIGNAL PATH
: PB
: REC
:PB(Digital out)
:REC(Digital in)
• SIGNAL PATH
: PB
: REC
:PB(Digital out)
:REC(Digital in)
• Abbreviation
SP :Singapore model.
– 49 –
– 50 –
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : STOP
(
no mark : STOP
(
) : PLAY
<
> : REC
∗
: Can not be measured.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal pro-
duction tolerances.
duction tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
E
: PB
q
: REC
a
: PB (DIGITAL OUT)
r
: REC (DIGITAL IN)
• Abbreviation
SP
: Singapore model.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
• Indication of transistor
• Indication of transistor
E C B
These are omitted
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
1
IC701
%ª
OSC1
1
2
3
4
5
6
7
8
IC101
1
,
2
I, J (PLAY mode)
IC101
4
A (PLAY mode)
IC101
8
,
9
E, F (PLAY mode)
IC121
!§
OSCI
IC121
@∞
LRCK
IC121
@¶
FS256
IC121
@§
XBCK
IC121
(º
FS4
IC201
0
LRCK1,
@•
LRCK
IC201
!¡
BCK1,
@§
BCK
IC201
!∞
MCK1,
@™
256CK
IC201
@∞
512FS
IC201
#∞
XOUT
IC401
!£
XOUT
1
2
3
4
5
6
0.46Vp-p
0.1Vp-p
0.06Vp-p
3.1Vp-p
22.581MHz
3.2Vp-p
44.1kHz
3.8Vp-p
2.822MHz
3.8Vp-p
11.29MHz
3.2Vp-p
176.4kHz
3.4Vp-p
7MHz
3.3Vp-p
44.1kHz
3.6Vp-p
2.822MHz
5.6Vp-p
22.553MHz
2.9Vp-p
22.578MHz
5Vp-p
22.58MHz
3.7Vp-p
2.361MHz
WAVEFORMS
– BD SECTION –
– BD SECTION –
– MAIN SECTION –
– PANEL SECTION –
• Indication of transistor
C
E
B
These are omitted
– 51 –
– 52 –
MDS-PC1
6-3. SCHEMATIC DIAGRAM – BD (1/2) SECTION –
• See page 50 for Waveforms.
• See page 55 for Printed Wiring Board.
• See page 71 for IC Block Diagrams.
• See page 76 for IC Pin Functions.
• See page 55 for Printed Wiring Board.
• See page 71 for IC Block Diagrams.
• See page 76 for IC Pin Functions.
(Page 54)
(Page 53)
– 53 –
– 54 –
MDS-PC1
6-4. SCHEMATIC DIAGRAM – BD (2/2) SECTION –
• See page 50 for Waveforms.
• See page 55 for Printed Wiring Board.
• See page 72 for IC Block Diagrams.
• See page 77 for IC Pin Functions.
• See page 55 for Printed Wiring Board.
• See page 72 for IC Block Diagrams.
• See page 77 for IC Pin Functions.
(Page 65)
(Page 58)
(Page 61)
(Page 51)
(Page 52)
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