Electrical Circuit Diagram; Logic Circuit - Toshiba 1550 Service Manual

14. ELECTRIC CIRCUIT DIAGRAM

14.1 Logic Circuit

14.1.1 1550 Logic Circuit (PWA-F-LGC) 1/8
1
A
ACKB-S
[ACKB-S]
SRXD
[SRXD]
STXD
[STXD]
ACKB-DF
[ACKB-DF]
DFRXD
[DFRXD]
B
DFTXD
[DFTXD]
5VCHK
[5VCHK]
REQ-DF
[REQ-DF]
ZC
[ZC]
S-REQ
[S-REQ]
DFACK
[DFACK]
SACK
[SACK]
MOT-FG
[MOT-FG]
DF-REQ
[DF-REQ]
MRR-D
[MRR-D]
MRR-C
[MRR-C]
MRR-B
[MRR-B]
C
MRR-A
[MRR-A]
LNS-D
[LNS-D]
LNS-C
[LNS-C]
LNS-B
[LNS-B]
LNS-A
[LNS-A]
SCN-D
[SCN-D]
SCN-C
[SCN-C]
SCN-B
[SCN-B]
SCN-A
[SCN-A]
AES-VIN
[AES-VIN]
ATSVIN
[ATSVIN]
DRM-THM
[DRM-THM]
TH-
[TH-]
D
E
RST
[RST]
F
1
Mar. 1998 © TOSHIBA
2 3
VDD
R38 1/10W4700
1 RTP 2
R106 1/10W4700
1 2
RTP
R17
1/10W4700
1 RTP 2
R37 1/10W4700
1 2
RTP
R18 1/10W4700
1 RTP 2
R80 1/10W4700
1 RTP 2
R41 1/10W4700
1 RTP 2
R20 1/10W4700
1 2
RTP
R87 1/10W22K
1 RTP 2
R86 1/10W22K
1 2
RTP
C26 C25
CC1000P/50
CC1000P/50
HC14F
R81 1/10W22K
1 RTP 2
R66 1/10W22K
1 2
RTP
R65 1/10W22K
1 RTP 2
R64 1/10W22K
1 2
RTP
R45 1/10W22K
1 2
RTP
R46 1/10W22K
1 RTP 2
C37 C27
CC1000P/50
CC1000P/50
R125 1/10W4700
1 2
RTP
R43
1/10W22K
1 2
RTP
R127 1/10W22K
1 RTP 2
R47 1/10W22K
1 RTP 2
R30
1/10W22K
1 2
RTP
1
1
2 C
2 C
GND
TP1
GND
R85 1 RTP 2 1/10W4700
2 3
HINT
How to search for where a signal in a
circuit diagram has jumped to.
4 5
VDD
R105
1
R148
1
R179
1
R50
1
R52
1
R34
1
R49
1
R36
1
R48
1
R32
1
7407M
34 72
2 1
P95/SCK1 P42/CS2
IC14 /CAS2
33 71
P94/RXD1 P41/CS1
/CAS1
7407M 32 70
4 3
P93/TXD1 P40/CS0
IC14 7407M /CAS0
5 31
6
P92/SCLK0
IC14 /CTS0
30 69
P91/RXD0 P37/RAS
R33
7407M 29 68
8 9 1
P90/TXD0 P36/R/W
RTP
IC14
67
P35/BSAK
20 66
P87/INT0 P34/BSRQ
7407M
MC74 19 65
10 11
P86/TO6 P33/WAIT
IC14 R53
1 2 18 64 1
P85/INT7 P32/HWR RTP
IC19
/TI7
R51
17 63 1
P84/INT6 P31/WR
RTP
/TI6
R54
16 62
1
P83/TO5 P30/RD
RTP
15
P82/TO4
14 61
P81/INT5 P27/A7
/TI5 /A23
13 60
P80/INT4 P26/A6
C17 /TI4 /A22
CC1000P/50
59
P25/A5
/A21
12 58
P73/TO3 P24/A4
/A20
R68
11 57 1
P72/TO2 P23/A3
RTP
/A19
R70
10 56 1
P71/TO1 P22/A2
RTP
/A18 R69
9 55
1
P70/T10 P21/A1
RTP
/A17
54
P20/A0
/A16
8
P67/PG13
7 52 D15
P66/PG12 P17/AD15
/A15
6 51 D14
P65/PG11 P16/AD14
/A14
5 50 D13
P64/PG10 P15/AD13
/A13
4 49 D12
P63/PG03 P14/AD12
/A12
3 48 D11
P62/PG02 P13/AD11
/A11
2 47 D10
P61/PG01 P12/AD10
/A10
1 46 D9
P60/PG00 P11/AD9
VDD /A9
45 D8
P10/AD8
/A8
76
P53/AN3
75 44 D7
P52/AN2 P07/AD7
74 43 D6
P51/AN1 P06/AD6
73 42 D5
P50/AN0 P05/AD5
78 41 D4
VREF P04/AD4
79 40 D3
AGND P03/AD3
39 D2
P02/AD2
27 38 D1
X2 P01/AD1
26 37 D0
X1 P00/AD0
1 1
21
NMI
28 22
2 C EA WDTOUT
2 C
23 35
RESET ALE
24
CLK
IC10
TMP96C141AFZ
R84
1/10W100
1 2
RTP
R95
1 2
RTP
1/10W1M
GND
1 3
X2
12M
2
GND
1
C33
CC2200P/50
2 C
GND
4 5
6 7
1/10W4700
RTP 2
1/10W4700
2
RTP
1/10W4700
RTP 2
1/10W4700
RTP 2
1/10W4700
2
RTP
1/10W4700
2
RTP
1/10W1000
RTP 2
1/10W4700
2
RTP
1/10W4700
2
RTP
1/10W4700
RTP 2
CS2
[CS2]
CS1
[CS1]
HTR-ON
[HTR-ON]
1/10W22K CTR-CNT
2
[CTR-CNT]
HTR-RDY
[HTR-RDY]
EXP
[EXP]
5VSWON
[5VSWON]
1/10W100
2 STORE
[STORE]
1/10W100
2 WR
[WR]
1/10W100 RD
2
[RD]
+24VCHK
[+24VCHK]
1/10W22K
2 DR-SW2
[DR-SW2]
1/10W22K
2 DEV-SW
[DEV-SW]
1/10W22K PLL-OK
2
[PLL-OK]
A16
[A16]
VDD
D(0:15)
[D(0:15)]
WDT
[WDT]
ALE
[ALE]
6 7
8
A
B
C
D
E
F
1
8
8
14 - 1 1550/1560 CIRCUIT DIAGRAMS