Toshiba 1550 Service Manual page 180

1560 Logic Circuit (PWA-F-LGC) 5/8
1
A
+24V
R4
1/10W22K
R6
1/10W4700
GND
B
TH+ R170
[TH+]
R28
THM-VREF
[THM-VREF]
TH-
[TH-]
C
1/10W4700
1/10W3900
HTR-ON
[HTR-ON]
D
SCN-H
[SCN-H]
SCN-L
[SCN-L]
SCN-D
[SCN-D]
SCN-B
[SCN-B]
SCN-C
[SCN-C]
SCN-A
[SCN-A]
E
F
1
Mar. 1998 © TOSHIBA
2 3
D1
VDD
1SS184
2 3
VDD
1
R21
1/10W22K
IC6
5
+
VCC
R5 6 VEE
-
1 2
RTP
[AK75393S]
1
1/10W6800
C7
R24
2 C
CC0.1/25
1/10W22K
GND
GND
GND
VDD
R26
1 2 1/10W1M
RTP
VDD
R7
1/10W10K
1 RTP 2 1/10W4700
R25
IC6
1/10W3900
1 2 1 2
RTP RTP 3
8
1
+
1
VCC
1/10W1000
2 VEE
-
2 C 4
1
[AK75393S]
C12
2 C
CC0.1/25
R27
1 C11
R8
CC0.1/25
1/10W3300
2 C
R29
+5VSW GND
4700
GND GND GND 2
1 Q8 RN1401 3
4700
4700 3 1
Q9
RN2401
2
4700
GND
VDD
R15
1SS181
R13
R31 R11 R14
1 RTP 2 1/10W4700
1 1/10W1500
R12
R35
1 RTP 2 1/10W4700
2 3
D2
16
14
15
13
11
R10
1/10W2700 +5VSW
1
1
C8
C10
R9
CC0.1/25
CC0.1/25 1/10W180 2 C
2 C
GND GND GND
2 3
HINT
How to search for where a signal in a
circuit diagram has jumped to.
4 5
R23
1 RTP 2 VDD
1/10W560K
R22
1/10W4700
8
7
+24VCHK
[+24VCHK]
4
4700
RST-SW 1
[RST-SW]
4700
RN2401
HTR-RDY
[HTR-RDY]
+5VSW
4700
2
RN1401 3 1 Q3
4700
1 4700 3 SSR+
Q1 [SSR+]
RN2401
2
4700
GND
SSR-
[SSR-]
VDD
1/10W4700
1 2
RTP
1/10W4700
1 RTP 2
1 RTP 2 1/10W4700
1/10W4700
1 2
RTP
7 SCN-MOT-D
NB ONB [SCN-MOT-D]
6 SCN-MOT-B
B OB [SCN-MOT-B]
3 SCN-MOT-C
NA ONA [SCN-MOT-C]
2 SCN-MOT-A
A OA [SCN-MOT-A]
10
VREF1 TB1
9 8
VREF0 TB0
+24V
1
VCC
4
PG
5 1
C1
SG
IC7 CE22/35
2
6712MK3
6712G
[6712G]
4 5
6 7
VDD +24V
D14
1SS193
MAINOFF
[MAINOFF]
2
Q21
2
R184
3 1 RTP 2 1 Q22
2SC2873Y
3
1/10W1000
R185
1 2
RTP
1/10W4700
DG
6 7
8
A
B
C
D
E
F
5
8 8
14 - 13 1550/1560 CIRCUIT DIAGRAMS