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DRAWING NO.
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DRAWING TITLE
DRAWN BY
CHK BY
DATE
Filename
ECO No.
DESCRIPTION OF CHANGE
J:\PROJECTS\A10amp\CIRCS\display\L831ct_1.sch
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
1
1
Sheet
of
ALPHA 10 AMP DISPLAY
Circuit Diagram
L831CT
1
2-Oct-1998
REQ
SDA
SCL
STBYLED
+8V
Vin
I
GND
G
Vout
O
Z1
7805
+5V
C1
100N CD
R1
3R3R FU
+8V
GND
1
VCC
2
NC
3
RS
4
R/W (WR)
5
E (RD)
6
DB0
7
DB1
8
DB2
9
DB3
10
DB4
11
DB5
12
DB6
13
DB7
14
Itron VFD Module
M1
ITRON_VFDM
C
3
B
2
A
1
SK3
ALPS_ENCODER
NEAR Z1, Z2
FOLD Z1 FLAT TO BOARD
PCB SILK SCREEN).
+8V
+5V
GND
+5V
C5
100N CD
TAPE2_0
TAPE2_1
TAPE2_2
SOURCE_0
SOURCE_1
SOURCE_2
TAPE1_0
TAPE1_1
TAPE1_2
CLOCK
LOAD
DATA
VFD_D0
VFD_D1
VFD_D2
VFD_D3
VFD_RS
VFD_E
X1
CST4 00
SCL
SDA
R11
10K MF
R12
10K MF
PHASE_A
PHASE_B
+5V
PHASE_B
PHASE_A
+5V
TO PREAMP
TO POWER AMP
3
2
1
+5V
O/P
GND Case
RX1
SBX1610-52
C8
100N CD
LED1
LED GREEN
LED2
LED GREEN
LED3
LED GREEN
LED4
LED GREEN
LED5
LED GREEN
LED6
LED GREEN
LED7
LED GREEN
SW1
TACTSW2
SW2
TACTSW2
SW3
TACTSW2
SW4
TACTSW2
SW5
TACTSW2
SW6
TACTSW2
SW7
TACTSW2
SW8
TACTSW2
SW9
TACTSW2
SW10
TACTSW2
SW11
TACTSW2
D1
1N4148
D2
1N4148
D3
1N4148
D4
1N4148
R2
150R MF
R3
150R MF
R4
150R MF
R5
150R MF
R6
150R MF
R7
150R MF
R8
150R MF
ROW2
GND
GND
GND
GND
GND
GND
GND
D5
1N4148
D6
1N4148
D7
1N4148
D8
1N4148
D9
1N4148
D10
1N4148
D11
1N4148
ROW1
COL7
COL6
COL5
COL4
COL3
COL2
COL1
ROUT
ROW1
ROW2
R14
330R MF
R
G
LED100
LED RED/GRN
R13
150R MF
STBYLED
R15
4K7 MF
R16
4K7 MF
ROW1
ROW2
RIN
ROUT
1
2
LK1
10MM LINK
CUT LK1 TO DISABLE R RECEIVER
Q1
BC557B
R10
4K7 MF
RIN
1
2
3
LK3
L815CA
1
2
3
LK2
L815CA
** SOCKETED **
+5V
R17
10K MF
SCL
SDA
REQ
STBYLED
LOAD
DATA
CLOCK
SCL
SDA
RIN
ROUT
REQ
STBYLED
LOAD
DATA
CLOCK
TAPE1_0
TAPE1_1
TAPE1_2
TAPE2_0
TAPE2_1
TAPE2_2
SOURCE_0
SOURCE_1
SOURCE_2
TAPE1_0
TAPE1_1
TAPE1_2
TAPE2_0
TAPE2_1
TAPE2_2
SOURCE_0
SOURCE_1
SOURCE_2
MCLR
1
RA0
2
RA1
3
RA2
4
RA3
5
RA4/T0CKI
6
RA5/SS
7
RE0/RD
8
RE1/WR
9
RE2/CS
10
VDD
11
VSS
12
OSC1/CLK N
13
OSC2/CLKOUT
14
RC0/T1OSI/T1CKI
15
RC1/T1OSO
16
RC2/CCP1
17
RC3/SCK/SCL
18
RD0/PSP0
19
RD1/PSP1
20
RD2/PSP2
21
RD3/PSP3
22
RC4/SDI/SDA
23
RC5/SDO
24
RC6
25
RC7
26
RD4/PSP4
27
RD5/PSP5
28
RD6/PSP6
29
RD7/PSP7
30
VSS
31
VDD
32
RB0/INT
33
RB1
34
RB2
35
RB3
36
RB4
37
RB5
38
RB6
39
RB7
40
Z2
PIC16C65
CLOCK
DATA
LOAD
TAPE1_0
TAPE1_1
TAPE1_2
TAPE2_0
TAPE2_1
TAPE2_2
SOURCE_0
SOURCE_1
SOURCE_2
COL7
COL6
COL5
COL4
COL3
COL2
COL1
LK1001
LINK10NP
LK1002
LINK10NP
LK1003
LINK10NP
LK1004
LINK10NP
LK1005
LINK10NP
LK1006
LINK10NP
LK1007
LINK10NP
LK1008
LINK10NP
LK1009
LINK10NP
LK1010
LINK10NP
C4
100N CD
VFD_D0
VFD_D1
VFD_D2
VFD_D3
VFD_E
VFD_RS
LK1012
LINK10NP
LK1013
LINK10NP
LK1015
LINK10NP
LK1016
LINK10NP
LK1017
LINK10NP
LK1018
LINK10NP
LK1019
LINK10NP
LK1020
LINK10NP
PCB
L831PB
L831PB
Update Box
(Small)
UDB
UPDATE_SML
Detail
Drilling
DD2
DRILL_DETAIL
PD1
TOOLING
PD2
TOOLING
PD3
TOOLING
PD4
TOOLING
PD5
TOOLING
PD6
TOOLING
PD7
TOOLING
PD8
TOOLING
PD9
TOOLING
PD10
TOOLING
PD11
TOOLING
PD12
TOOLING
PD13
TOOLING
PD14
TOOLING
PD100
TOOLING
PD101
TOOLING
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
SK1
FFC22H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
SK2
FFC22H
9
8
7
6
5
4
3
2
1
RP1
100K X 8 COM
+5V
COL7
COL6
COL5
COL4
COL3
COL2
R9
4K7 MF
R20
100K MF
REQ
R_IN
R_OUT
PHIL
15/5/97
R18
100R MF
R19
100R MF
R21
100R MF
+
C2
470U EL 25V
C3
100N CD
PWRLED
PWRLED
LK1011
LINK10NP
LK1014
LINK10NP
LK1021
LINK10NP
+ C6
220U EL
R22
100K MF
Q2
ZVNL120
RST
RST
LK1022
LINK10NP
BARCODE LABEL
EL1
BARCODE_A10_DISP
Issue Box
Drilling Detail
DD
DD_ISSUESML
P1
THRU_PIN
P2
THRU_PIN
P3
THRU_PIN
P4
THRU_PIN
P5
THRU_PIN
P6
THRU_PIN
P7
THRU_PIN
P8
THRU_PIN
P9
THRU_PIN
P10
THRU_PIN
P11
THRU_PIN
P12
THRU_PIN
P13
THRU_PIN
