Toshiba 4560, Service Manual

Page: 232 / 369

Nov. 1997 © TOSHIBA 14 - 19 4560/4570 CIRCUIT DIAGRAMS
How to search for where a signal in a
circuit diagram has jumped to.
HINT
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
A
B
C
D
E
F
A
B
C
D
E
F
1/3
14.ELECTRIC CIRCUIT DIAGRAM
14.3 Control Key 1 Circuit (PWA-KEY 1)
[AZ7932S]
L/R
D16
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
SOUT
LATCH
LAST
BE0
STB
CK
SI
[VDD]
[VSSL]
[VSSD]
[VSSD]
[VSSD]
[VSSD]
VDD
1K
R20
2 1
R18 1K 1 2
R19 1K 1 2
IC1
1
30
23
18
13
8
6
7
9
10
11
12
14
15
16
17
19
20
21
22
24
25
5 26
28
3
2
27
4
29
0.1/50
C1
2
1
C4
33P/50
2
1
33P/50
C3
1
2
C5
33P/50
2
1
1K
R12
2 1
100 R6 2 1
R4 100 1 2
100
R2
2 1
R17 100 1 2
100 R16 2 1
R9 100 1 2
100
R8
2 1
R5 100 1 2
100 R3 2 1
R7 100 1 2
100 R14 2
1
R15 100 1 2
100 R1 2 1
GND
1K R10 2 1
R13 1K 1 2
3B4
3B4
3B4
R11 1K 1 2
3B4
1K R21 2 1
3B4
LTL16KG LP1 K A
LP2 LTL16KG A K
LTL16KG LP3 K A
LP4
LTL16KG A K
LTL16KG LP5 K
A
LP6 LTL16KG A K
LTL16KG LP7 K A
LP8
LTL16KG A
K
LTL16KG LP9 K
A
LP10 LTL16KG A K
LTL16KG LP11 K A
LP12
LTL16KG A K
LTL16KG LP13 K
A
C2
33P/50
1
2
LELTH0
LECLK
LERST
DSPON0
SGD
LEDAT
[LELTH0]
[LECLK]
[LERST]
[DSPON0]
[LEDAT]
P/3
P/2
P/1
P/0
P/USER
APS
O/3
O/2
O/1
O/0
O/USER
AMS
FC
14.3 Control Key 1 Circuit (PWA-KEY1)