Casio I/O-PB-11 User manual

(without price)
SERVICE MANUAL
ELECTRONIC CASH REGISTER OPTION I/O BOARD
NOV. , 1994
I/O-PB-11(EX-I/O-PB-11)
FOR MODEL: CE-4700
TK-1300
TK-2300
TK-2700
TK-5100
INDEX

CONTENTS
IN/ON-LINE BOARD I/O-PB-11 Page
1. TO INSTALL THE I/O-PB-11......................................................................... 1
2. INTERFACE .................................................................................. 3
2-1. C-In line (ECR to ECR) ......................................................................... 3
2-2. On line .................................................................................. 6
3. CIRCUIT EXPLANATIONS............................................................................ 8
3-1. Address selection.................................................................................. 8
3-2. Scale buffer circuit................................................................................. 9
3-3. On line circuit (RS-232C) .................................................................... 10
3-4. C-In line circuit ................................................................................ 12
4. DIAGNOSTIC OPERATIONS...................................................................... 15
4-1. To start the diagnostic operation......................................................... 15
4-2. Check Items for I/O-PB-11 .................................................................. 16
4-3. Operations ................................................................................ 16
5. ERROR CODE LIST ................................................................................ 24
6. IC DATA ................................................................................ 27
7. PARTS LIST ................................................................................ 30
8. PCB LAYOUT ................................................................................ 32
9. CIRCUIT DIAGRAM ................................................................................ 33

— 1 —
IN/ON-LINE BOARD I/O-PB-11
1. TO INSTALL THE I/O-PB-11 (for model CE-4700, TK-1300, TK-2300, TK-2700, TK-5100)
1) Plug off the AC cord from outlet and turn the mode switch to REG mode for
discharge of electrolytic capacitors.
2) Open the upper case and remove the Ni-cd battery connector. To open upper
case, refer section 8 of disassembly in each ECR service manual.
3) In case of using scale, cut off the masking cover for scale.
4) Replace the ROM for necessary version.
5) Mount necessary RAM chips to main PCB.
6) Mount the two locking supporters on the PCB.
7) Connect the I/O-PB-11 and main PCB by two cables carefully caused the
cable lines are very narrow.
8) Connect the F.G. wire of I/O-PB-11 to the F.G. plate by screw.
9) Connect the Ni-cd battery connector to the main PCB.
10) Perform the MAC operation and check whether the machine is normal condi-
tion.
11) Power off and close the upper case by screw.
In-line connector

— 2 —
Scale cable
SCL-CB-10
Cut the masking cover for In-line
connector
Check whether those capacitors are lying.
In-line cables
Locking supporters
Cable fixing plate
Cable supporter
Cut the masking
part if necessary.
I/O-PB-11
Cut the masking cover for ON-line
connector.
Cut the masking cover for scale.
Scale cable

— 3 —
2-1. C-In line (ECR to ECR)
1) C-In line connection diagram
The maximum C-In line cable length and the maximum connection unit will be
varied by the in-line communication speed as shown below list.
Total cable length is max. Am
[C-In line cable wiring]
Master Satellite SatelliteSatellite
Terminater (100 ohms) Terminater (100 ohms)
2) C-In line cable, Connector, and Terminater
C-In line cable
Code No. Parts name Specification
1904 4023 In-line cable IPEV-SLA0.5x1P
C-In line connector
Code No. Parts name Specification
3500 5820 In-line connector kit XLP-KIT-1
Terminater
Code No. Parts name Specification
2600 2516 Carbon film resistor R-25-100-J
3) Cable connection diagram
Signal Pin Signal Pin
SD 1 SD 1
RD 2 RD 2
FG FG plate FG FG plate
(Master side) (satellite side)
2. INTERFACE
C-In line communication speed Maximum Maximum
(Baud rate) connection unit cable length A( m )
1.25 M bps 8 86
625 K bps 12 200
312.5 K bps 20 430
156.25 K bps 32 890

— 4 —
C-In line cable
Terminater (100 ohms)
Terminal cap
C-In line connector
Shield wire
Wrap bent shield wire
with Copper tape.
Red Red
BlackBlack
C-In line cable
C-In line connector
Terminal cap
Notes:
1.Use crimp tool for connecting termi-
nal caps.
2.If crimp tool is not available, connect
the wires with solder instead of termi-
nal cap. After the soldering, insulate
the wires with vinyl tape.
Wrap bent shield wire
with Copper tape.
Red
Red
Black Black
Shield wire
Notes:
1.Use crimp tool for connecting termi-
nal caps.
2.If crimp tool is not available, connect
the wires with solder instead of termi-
nal cap. After the soldering, insulate
the wires with vinyl tape.
4) To fix C-In line connector to ECR.
Connect the C-In line cable and C-In line connector as shown below:
[Connector on the end of C-In line]
[Connector between ECRs]

— 5 —
Connect the C-In line
connector as shown below:
C-In line cable
Cable fixing plate
Part of copper tape
Cable supporter
Connect to C-In line connector.
1. Structure
Conductor Material: Tin plated mild copper twist
Cross section area: 0.5mm2
Construction: 20 pieces/0.18 mm
O.D. 0.95 mm
Insulation Material: Polyethylene
Thickness 0.3 mm
Sheath Material: PVC
Thickness 1.3 mm
Finished O.D.: 6.0 ~6.5 mm
Approx. weight: 55 kg/km
2. Properties (20°C)
Maximum conductor resistance 38.7 Ω/km
Minimum insulation resistance 10 kMΩ•km
Electric strength AC350 V/1 minute
Electrostatic capacity (Standard) 75 nF/km
6) C-In line cable specification

— 6 —
2-2. On line
(1) Direct connection to P/C
[Cable]
1) Wiring diagram (A) A SYNC.
2) Parts list
No. Code Number Part Specification
1 3612 0762 DIN 13P PLUG TCP9361-71-111
2 3513 1019 Junction shell DB-C2-J9
3 3510 2043 Shell connector DB-25S
4 Cable PLGW-3456-01A
PIN SINGNAL
2SD
3RD
4RS
5CS
6DR
7SG
8CD
20 ER
SIGNAL PIN
GND 1
ER 3
SD 4
RS 5
RD 7
CS 8
CD 9
DR 10
CI 13
PC-DOS
Personal
Computer
ECR Cable length = Max. 15m

— 7 —
ECR Cable length = Max. 15m
[Cable]
1) Wiring
PIN SINGNAL
2SD
3RD
4RS
5CS
6DR
7SG
8CD
15 –
17 –
20 ER
22 CI
24 –
SIGNAL PIN
GND 1
ER 3
SD 4
RS 5
NC 6
RD 7
CS 8
CD 9
DR 10
NC 11
NC 12
CI 13
2) Parts list
No. Code Number Part Specification
1 3612 0762 DIN 13P PLUG TCP9361-71-111
2 3513 1019 Junction shell DB-C2-J9
3 3510 2043 Shell connector DB-25S
4 Cable PLGW-3456-01A
(2) MODEM connection
MODEM

— 8 —
3. CIRCUIT EXPLANATIONS
3-1. Address selection
A3
GND
A2
GND
A1
GND
A0
GND
VCC
VCC
IOCS
VCC
RESET
VCC
E
VCC
3
1
2IC15
C8
VCC
4
5
6IC12
10
8
9IC12
8
4
5IC15
GND
C23
GND
C37
VCC
D2
D3
RXD
GND
D4
D5
D6
D7
TXCLK
WR
CS
C/D
RD
RXRDY
D1
D0
VDD
RXCLK
DTR
RTS
DSR
RESET
CLK
TXD
TXEMP
CTS
SYNC
TXRDY
GND
GND
IRQ
GND
WR
GND
RD
GND
A7
GND
D6
GND
D5
GND
D4
GND
D3
-12V
D2
-12V
D1
12V
D0
12V
IC1
32
GND
C30
C29
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
VCC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
GND
Q12
Q6
Q5
Q7
Q4
Q3
Q2
GND
VCC
Q11
Q10
Q8
Q9
RST
CLK
Q1
GND
VCC
R27
C31
C32
C33
C36
VCC
GN
D
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
IC12
IC14
11
12 12
13
13
11
IC17
9
10
R26
R25
R11
IC12
12
3
IC15
12
13 11
IC4
14 15
IC1
910
IC4
11 12
C9
C10
C11
IC4
910
IC4
76
IC4
54
IC1
76IC5
56
R9
R8
R7
R6
R5
R4
R3
C1 C6
+
-12V
+12V
R2
R1
IC4
32
IC4
54
IC14
IC14
31
2
9
10 8
IC14
4
56
IC15
IC16
IC7
D2
D3
D4
D5
D6
D7
D1
D
0
GND
R10
GND
D7
D6
D5
D4
D3
D2
D1
D0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C7
+
+12V
-12V
V+
V-
To E570-1To E570-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CS for IC10
(C-In line controller)
RDTM
CLK for IC9
USART
D7
According to the address of main CPU, the decorder selects the following optional devises.
IC No. Pin No. CPU address Descriptions
IC17 4 1Y0 0034H & RD="L" RDTM gate enable of IC8 (For scale data read)
10 2Y2 0036H Chip selection of C-In line controller
IC14 11 CLK 0034H & WR="L" Clock signal of IC9 (For C-In line controller data)
IC15 6 CS 0030H Chip selection of USART (Data)
0031H Chip selection of USART (Control status)