
ABCDE FGHI J
1
■
PRINTED CIRCUIT BOARD
(Foil side)
FL SW
GND
FEED-
FEED+
SPDL-
SPDL+
#2 #3
CLOSE
GND
OPEN
LOADING-
LOADING+
MAIN P.C.B. (1)
To : MAIN (2)
F2
GNDCEDI
F1VP/BLKCLGND
REM+5K1K3KD3
LEDK0K2K4KD2
KD1
KDO
To : MAIN (5)
R
GND
L
2
8
OPTICAL PICK-UP
8081
KSM-213CCM
100
3
VC
VCC
E
D
A
B
C
F
GND
LD
VR
PD
FCS+
TRK+
TRK-
FCS-
36 19
4
IC1
1
18
30 15
IC2
1
14
2021
40
41
IC3
60 61
1
1
80
IC300
51
50
30 31
41
58
5
#200
AC
#201
GND
AC
AC
F2
F1
17
14
148
7
1
8
To : MAIN (3)
To : MAIN (3)
6
4
18
5
1
45
3444
1
33
IC100
11
12 22
23
1
28
IC101
14 15
4
18
5
• Semiconductor Location
Ref. No. Location
D100
D101
D200
D201
D202
D203
D204
D205
D206
D207
D209
D210
D211
D212
D213
D214
D215
D216
D217
D218
D219
D221
D222
D223
Q1
Q3
Q4
Q5
Q100
Q101
Q102
Q103
Q201
Q202
Q203
Q204
Q205
Q300
IC1
IC2
IC3
IC100
IC101
IC102
IC103
IC104
IC105
IC200
IC300
IC301
I3
H3
G5
F5
F5
F6
F5
C6
D5
D6
D5
F5
D5
D6
D6
D6
D6
D3
D6
D7
C6
F6
G4
G4
C4
E3
D2
G5
F6
H6
G6
G6
F5
E5
E6
D3
C6
F2
D4
E3
F4
H3
H4
G5
H5
H2
D6
E5
G3
G4
7
OPTICALCOAXIAL
DIGITAL AUDIO OUT
LINE OUT
1918

ABCDE FGHI J
MAIN P.C.B. (3)
MAIN P.C.B. (2)
MAIN P.C.B. (4)
MAIN P.C.B. (5)
BE
WH
AC
IN
W200
#200
#201
WH
BE
To :
MAIN (1)
To :
MAIN (1)
To :
MAIN (1)
AC
GND
AC
AC
F2
F1
L
GND
R
PHONES
POWER
(STOP) (PLAY)
OUTPUT LEVEL
STOP/SEARCH
0987654321+10
VC
VO
G
OPEN/CLOSE
69 70
241621
32
3435
37 39 51
1
64
1617
32
33
48 49
56 6736
1
IC302
KD0
KD2K4K2K0LED
GNDCL/BLKVPF1
KD1
KD3K3K1
+5V
REMDICE
GND
F2
To : MAIN (1)
Ref. No. Location
D300
D301
D302
D303
D304
IC302
H2
D2
D2
C2
C2
F2
• Semiconductor Location
-
+
1
■
PRINTED CIRCUIT BOARD
(Foil side)
2
3
4
5
6
7
2120

ABCDEFGH I
■
SCHEMATIC DIAGRAM
1
2
3
4
DIGITAL SERVO HEAD AMP
2.5
2.5
2.5
2.5
2.5
2.5
2.0
2.5
2.5
2.7
1.4
2.5 0.1
0
0
4.9
2.8
2.4
1.8
0
2.4
2.6
2.5
5.5
2.5
5.6
0
0
2.5
2.5
5.5
2.6
2.6
4.9
0
4.6
1.8
PU
DRIVER
2.6
2.5
2.5
0.2
3.9
3.9
2.8
2.5
2.5
2.5
2.5
5.5
2.6
2.6
2.4
2.8
~
000
2.4
2.4
5.0
0
5.0
0
2.4
2.5
0
5.0
0
1.8
0
5.0
0
4.9
0
5.0
2.4
2.5
2.5
2.5
2.5
000
0.1
2.5
2.5
2.5
2.5
2.5
2.4
2.4
2.5
2.5
2.5
2.5
2.5
0
4.9
4.8
0
~
4.9
0
0
0
0
4.9
0.1
4.8
2.5
0
4.9
~
2.4
2.4
0
4.9
4.8
0.1
0
4.9
0
0
0
2.3
2.4
4.9
4.9
0
2.5
1.3
2.5
2.5
1.8
4.9
2.2
SPC & DAC
B
0
0
0
4.9
2.6
4.9
4.9
0
0
0
3.0
3.0
A
2.52.5
2.5
0
0
2.5
0
0
0
DAFC
0
0
5.0
EEPROM
2.5
4.9
4.8
0.1
0
0.3
4.9
DAFC RST
0
4.9
4.9
4.9
4.9
0
4.9
4.9
4.9
4.9
SYSTEM
CONTROL
4.9
1.4
4.9
4.9
4.8
0.1
~
4.9
0
0
4.9
4.9
4.9
4.9
C
4.9
4.9
0
0
4.9
4.9
4.9
4.9
0
0
4.9
000
4.9
0
4.8
4.9
4.9
0
4.7
4.9
2.3
2.7
0
0
0
0
4.9
4.8
0
4.9
4.9
4.9
-0.1
5
D/A CONVERTER
1.8
2.4
4.9
2.4
2.5
0
5.0
0
0
0
0
2.6
5.0
3.3
0
5.0
0
2.3
0
2.4
2.4
0
0
0
0
0
2.3
2.4
MUTE CONTROL
3.7
4.9
4.3
5.1
4.9
4.9
4.3
3.7
5.1
4.9
4.8
5.1
5.1
-5.7
E
4.9
1.3
0
5.7
5.0
5.0
POWER
SUPPLY
-27.7
-22.2
1.2
5.7
5.7
4.9
5.7
5.5
6.2
0
POWER SUPPLY
-27.7
-28.3
5.1
5.1
0
-5.7
POWER
SUPPLY
-10.3
-5.700
-11.0
-10.3
0
9.8
5.7
9.2
0
9.8
9.8
0
-11.0
D
9.2
-29.3
-29.3
6
1.2
0
7
1.2
5
8
5.7
5.7
8
5
0
7
0
6
2
0
3
0
3
1.2
1.2
2
0
LINE AMP & LPF
9.8
0
0
0
0
0
0
9.9
-0.1
-0.1
9.9
-11.0
-0.1
-11.0
-0.1
-0.1
9.8
9.8
9.8
9.8
-0.1
-21.7
-11.0
-11.0
14
2.4
12
13
2.4
10
0
-0.1
-0.1
AC17.5
AC10.9
AC3.4
-23.8
-5.7
-5.7
4
1
0
1
0
4
-5.7
HEADPHONE
9.1
8.8
3
8
0
2
1
0
6
7
0
5
0
4
0
-9.9
-10.3
5.0
11
2.5
00
-5.6
-5.6
0
0
0
0
-5.6
-5.6
0
0
MUTING
AMP
0
PHONES
COAXIAL
OPTICAL
DIGITAL
AUDIO OUT
J
6
7
PIN CONNECTION DIAGRAM OF
TRANSISTORS, DIODES AND ICS.
2SA933S(Q,R)
B
C
E
2SA1708(S,T)
E
2SB544(E,F,G)
2SC2878(A,B)
2SD400(E,F)
E
C
B
2SB1565(E,F)
2SD2394(E,F)
IT2
HSS104
Cathade
PIC-28043TH2
1
2
3
NJM5532D
8
1
BA15218
S-24C01ADP
8
B
C
HD74HC00P
M5290P
E
C
B
AN8285SB
AD1854
Anode
28
AN8882SB
36
4
1
8
14
1
9
16
1
15
1
19
1
4
7
8
14
18
YSZ9148
34
44
111
LC75711
49
64
116
MN35511
61
80
120
uPD7076GF-XXX
50 31
51
80
81 100
2333
22
12
-25.2
4.9
0
4.9
3348
32
17
4160
40
21
30
1
0
4.9
0
4.9
0
0
0
REMOTE
SENSOR
~
~
~
~
-27.1
~
~
~
~
~
~
~
~
~
~
~~~~~~~~~~~~~~~~~~~~~~~
-27.1
-21.9
-21.9
-25.3
-25.4
-25.2
-25.2
-25.2
2.4
4.9
4.9
0.3
4.8
0.1
2.4
DISPLAY
DRIVER
~~~~~~~~~~~~~~~
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.4
0
0
-25.3
-27.7
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-25.2
-24.5
~
~
~
~
~
-21.9
-21.9
~
~
~~~~~~~
-25.2
-24.5
* All voltages are measured with a 10M /DC electric volt meter.
* Components having special characteristics are marked
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
and
24