47K
220K
SYSTEM BUS
-20V
5V
11.5V
11.5V
5V
5V
11.5V
1.8K 1K 820 470 390
1K 820 470 390
S
T
B
Y
A
LB
U
M
FA
D
E
V
R
D
O
W
N
C
.R
E
S
E
T
O
P
E
N
/C
LO
S
E
V
R
U
P
D
O
LB
Y
N
R
R
E
V.
M
O
D
E
R
E
C
/P
A
U
A
U
TO
S
PA
C
E
1K 820 470 390
R
E
W
F
F
R
.P
LA
Y
F.
P
LA
Y
S
TO
P
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
64
63
62
61
60
59
58
57
56
55
54
53
52
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
AIN3
AIN2
AIN1
AIN0
70/120
LINEMUTE
OSCOUT
400Hz/12kHz
DOLBYRESET
RECMUTE
OPENSW
CLOSESW
RIOUT
RIIN
TC2
PPG
DVOA
INT2
INT1
S
C
K
S
I
S
O
C
S
S
T
B
T
E
S
T
V
S
S
X
IN
X
O
U
T
R
E
S
E
T
X
T
IN
X
TO
U
T
IN
TO
G
10
G
11
G
12
G
13
G
14
G
15
V
D
D
V
A
R
E
F
V
A
S
S
K
1
K
2
K
3
K
4
G9
G8
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
INT3
DVOB
VKK
Q709
BJ254GK
F.L. TUBE
Q601
Q711
R-REC SW
MECHA
METAL
POSITION
SW
MECHA
F-REC SW
MECHA
Q702
BR93LC46F-WE2
Q201
HA12169FB
DOLBY DECODER
X701
8MHz
Q710
CASSETE
IN SW
MECHA
PLAY SW
MECHA
HIGH
POSITION SW
MECHA
CAPSTAN-
MOTOR
MECHA
SOLENOID
MECHA
Q707
TA7291S
ROT SENSOR
MECHA
LOAD OUT
MECHA
LOAD IN
MECHA
Q203.Q204
Q205.Q206
Q102
Q201
Q101
L401
L402
Q401
MAICROPROCESSOR CONNECTION DIAGRAM
K-505TX
SYSTEM RESET
MOTOR
DRIVE
TRAY
MOTOR
DRIVER
POWER
FAILURE
DET.