Casio I/O-PB-12 User manual

(without price)
SERVICE MANUAL
ELECTRONIC CASH REGISTER OPTION I/O BOARD
NOV. , 1994
I/O-PB-12 (EX-I/O-PB-12)
FOR MODEL: CE-4700
TK-1300
TK-2300
TK-2700
TK-5100

Table of contents
1. In/On-line board
1-1.To mount the I/O PB-12 in the P/C unit.................................................................. 1
1-2.I/O PB-12 board cables connection........................................................................ 2
1-3.Interface.................................................................................................................. 3
2. In-line cable, Connector, and Terminator
2-1.In-line cable ............................................................................................................ 4
2-2.In-line connector ..................................................................................................... 5
2-3.In-line connector (ECR side) .................................................................................. 5
2-4.Terminator (This part is included with I/O-PB-12 product) ................................... 5
3. Connection
3-1.Cable connection diagram...................................................................................... 6
3-2.Connection on the PC side..................................................................................... 6
3-3.Connection on the end of in-lline cable .................................................................. 6
3-4.Connector between ECRs ...................................................................................... 6
4. Circuit explanations
4-1.Block diagram........................................................................................................ 7
4-2.ISA bus .................................................................................................................. 7
4-3.C-Inline ................................................................................................................... 8
4-3.Timing Chart......................................................................................................... 11
5. Diagnostic
5-1.Summary .............................................................................................................. 12
5-2.Files ...................................................................................................................... 12
5-3.Hardware .............................................................................................................. 12
5-4.Procedure ............................................................................................................. 12
5-5.Operation.............................................................................................................. 13
6. IC data .................................................................................................. 21
7. PCB layout ........................................................................................... 22
8. Circuit diagram.................................................................................... 23
9. Parts list ............................................................................................... 29

— 1 —
1. IN/ON LINE BOARD I/O PB-12
1-1. To mount the I/O pb-12 in the P/C unit
1) To open upper case of the P/C unit (In case using SA-3000 as a P/C unit), release the
one screw of the back side and lift the upper cas up from the CPU unit.
2) Mount the I/O PB-12 to the mother boards slot connector as shown in the following.
[Hardware Configuration]
1) Release the screw.
2) Lift up the upper case.
NOTE: There are 6 hooks at the
bottom side of upper case. Please
be careful.
BATTERY 1
BATTERY 2
UPS
CPU RAM
R3 Printer cable
HDD cable
M/O Board
VGA BOARD
I/O PB-12
Mother Board 3.5 Inch FDD

— 2 —
1-2. I/O PB-12 board cables connection
CN2
Inline
Connector
CN3
Kitchen
Printer
Connector
SW1
IRQ No. selection
SW2
IRQ No. selection
SW3
I/O Port address
selection
Red wire
CN4
From Power supply (UPS)
1) Connect the following cable to the I/O-PB12.
CN2: Kitchen printer
CN3: In-line
CN4: Power cable from the UPS.
Ensure that the red dot line mark is No.1 pin.
2) The standard setting for SW1(INT1), SW2(INT2) and SW3(PORT) are as follows:
SW1: Standard setting is IRQ10.
SW2: Standard setting is IRQ11.
SW3: Standard setting is 1E0H.

— 3 —
1-3. Interface
1-3-1. C In-line
1) In-line connection diagram
The maximum in-line cable length and the maximum connection unit will be varied by the
in-line communication speed as shown below list.
[In-line cable wiring] Total cable length is max. Am
ECRPC ECR ECR
Terminater(100 ohms) Terminater(100 ohms)
In-line Communication speed Maximum Maximum cable length
(Band rate) connection unit 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
2) Connection: Multi drop
3) Terminator: 100 Ω
4) We recommend that PC is a terminal set.
5) If PC is not the terminal set, FG(PC side) should not connect with cable ground.
Then to make 10 cm of cable which is non-terminal resist.
1-3-2. KP In-line
1) BPS speed: 1,200bps, 2,400bps, 4,800bps, 9,600bps, 19,200bps
2) Connection: T branch
3) Terminator: Open
4) We recommend that PC is a terminal set.
5) If PC is not the terminal set, FG(PC side) should not connect with cable ground.
Then to make a 10 cm of non-terminal resistor and to connect it in this case.
6) Dip switch

— 4 —
[KP-200]
SW1: The blank means off.
Machine 1 2 3 4 BPS 5678
1 600
2 on 1200 Not used
3 on 2400
4onon 4800 on on
5 on 9600 on
6on on
7onon
8ononon
SW2 and SW3: All off
[KP-300]
SW1(Fixed): On: 4, 6 Off: 1,2,3,5,7,8
SW2: The blank means off.
Machine 1 2 3 4 BPS 5 6 7 8
1 600
2 on 1200 Not used
3 on 2400
4onon 4800 on on
5 on 9600 on
6on on
7onon
8ononon
2. IN-LINE CABLE, CONNECTOR, AND TERMINATOR
2-1. In-line cable
Code No. Parts name Specification
1904 4023 In-line cable IPEV-SLA 0.5x1

— 5 —
[In-line cable specification]
1. Structure
Conductor Material: Tin plated mild copper twist
Cross section area: 0.5 mm2
Construction: 20 pieces/0.18 mm
O.D. 0.95 mm
Insulation Material: polyethylene
Thickness: 0.3 mm
Sheath Material: PVC
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
2-2. In-line connector
Code No. Parts name Specification
1904 4069 Connector DE-9PF-N10
1904 4070 Junction shell DE-C8-J9-F1
2-3. In-line connector (ECR side)
Code No. Parts name Specification
3500 5820 In-line connector kit XLP-KIT-1
2-4. Terminator (This part is included with I/O-PB-12 product)
Code No. Parts name Specification
2600 2516 Carbon film resistor R-25-100-J

— 6 —
Shield wire
Fold the shield and fasten by
wrapping copper tape.
Terminator (100 ohms)
In-line cable In-line connector
Termination 'R in series are connected at pins
1 and 4 of two connectors at both the ends of
the in-line cable.
Red
Wrap bent shield wire
with Copper tape
Red
Black
In-line connector
Red
Black
Black
Black
Red
In-line cable
Wrap bent shield wire
with Copper tape Shield wire
3. CONNECTION
Connect the in-line cable and in-line connector as shown as below:
3-1. Cable connection diagram
Signal Pin Signal Pin
SD 1 SD 1
RD 3 RD 2
FG FG plate FG Cut
( PC side ) ( ECR side )
3-2. Connection on the PC side
3-3. Connection on the end of in-line cable
Notes: 1. Use crimp tool for connecting terminal caps.
2. If crimp tool is not available, connect the wires with soled instead of
terminal cap. After the soldering, insulated the wire with vinyl tape.
3-4. Connector between ECRs
Notes: 1. Use crimp tool for connecting terminal caps.
2. If crimp tool is not available, connect the wires with solder instead of
terminal cap. After the soldering, insulated the wire with vinyl tape.

— 7 —
4. CIRCUIT EXPLANATIONS
4-1. Block diagram
4-2. ISA bus
Pin Signal Pin Signal
A01 NC B01 GND
A02 SD7 B02 RESETDRV
A03 SD6 B03 +5V
A04 SD5 B04 NC
A05 SD4 B05 NC
A06 SD3 B06 NC
A07 SD2 B07 -12V
A08 SD1 B08 NC
A09 SD0 B09 +12V
A10 IOCHRDY B10 GND
A11 AEN B11 NC
A12 NC B12 NC
A13 NC B13 IOW
A14 NC B14 IOR
A15 NC B15 NC
A16 NC B16 NC
A17 NC B17 NC
A18 NC B18 NC
A19 NC B19 NC
A20 NC B20 NC
A21 NC B21 IRQ7
A22 SA09 B22 NC
A23 SA08 B23 IRQ5
A24 SA07 B24 IRQ4
A25 SA06 B25 IRQ3
A26 SA05 B26 NC
A27 SA04 B27 NC
A28 SA03 B28 BALE
A29 SA02 B29 +5V
A30 SA01 B30 NC
A31 SA00 B31 GND
PLD
EPM7064
84pin J-Lead
CPU
HD63B03YP
64pin DIP
GA
LC92011B-630
80pin FP
SRAM
CXK581000P-10L
32pin DIP
ARCNET
COM20020BP
24pin DIP
Driver
Receiver
Driver
Receiver
EPROM
TM27C010A-12JL
32pin DIP
ISA Bus
KP In-line
C in-line

— 8 —
4-3. C-Inline
1. Circuit Diagram
[Pin Configuration] [Internal Block Diagram]