Casio SE-G1 User manual

SERVICE MANUAL
ELECTRONIC CASH REGISTER
SE-G1/PCR-T273/SM-T274
(EX-256)
JAN. 2013
Ver.1 : Jun. 2013

SE-G1/PCR-T273/SM-T274
CONTENTS
1. SPECIFICATIONS .......................................................................................................... 1
2. INITIALIZATION ............................................................................................................. 2
3. DISASSEMBLY............................................................................................................... 3
4. DIAGNOSTIC OPERATION.......................................................................................... 16
5. PCB LAYOUT ............................................................................................................... 25
6. PARTS LIST.................................................................................................................. 27
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED
BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING
TO THE INSTRUCTIONS.

SE-G1/PCR-T273/SM-T274
– 1 –
1. SPECIFICATIONS
1-1. Electrical Specications
Power Consumption
In operation Max.
100 V 120 V 220 V 230 V 240 V
122 mA 111 mA 79 mA 75 mA 74 mA
Mode off Max. 12.4 mA 11.4 mA 12 mA 12.4 mA 12.8 mA
Memory protection Back-up battery
Back-up period
Battery life
Mangan Battery (UM-3×2 pcs)
1 year (25 °C)
Replace the battery every 1 years.
Clock & Calendar Accuracy
Auto calendar
Within ± 30 sec. per month (25 °C)
Effective until 2099 A.D.
1-2. Environmental Specications
Operating temperature 0 °C ~ 40 °C
Operating humidity 10 % ~ 90 %
Storage temperature -25 °C ~ 65 °C
Storage humidity 10 % ~ 95 %
Vibration strength Durable when one side of the unit is lifted to a height of 10 cm and dropped.
1-3. Printer Specications
Name LTP01-245
Method Thermal line dot printing
Dots/line 384 dots/line
Dot pitch Length 16 dots/mm, Wide 8 dots/mm
Paper roll 58 mm × 80 mm φ (Max.)
1-4. Option List
Name Model Note
Waterproof Cover WT-92
1-5. Drawer List
Type Model Specication
S DL-1335 D-27L2C-D54RM-4
S DL-1844 D-27L2C-D53RM-4
S DL-1845 D-27L2C-D53RM-13
M DL-2816 D-25L2C-B84RM-4
M DL-2817 D-25L2C-B84RM-13

SE-G1/PCR-T273/SM-T274
– 2 –
2. INITIALIZATION
(1) Remove the memory protection batteries.
Memory protection batteries
(2) If the Power cord is plugged to a power outlet, unplug it.
(3) Wait for 15 seconds, and set the memory protection batteries again.
(4) Set the paper.
NOTE: Unless the paper is set, Error "E 10" is triggered and the program cannot be launched.
(5) Plug the Power cord to a power outlet.
(6) Enter year, month, day, and time.
NOTE: For US, enter month, day, and year in this order.
For other regions, enter day, month, and year in this order.

SE-G1/PCR-T273/SM-T274
– 3 –
3. DISASSEMBLY
3-1. Important
• Please note that the product on this manual may appear to be different from the actual one
according to the changes such as engineering design change.
• Be sure to unplug the power cord and remove the roll paper before starting any repair/
maintenance.
• In order to prevent static and avoid leaving grease from the hand, wear conductive gloves,
ngercots,oranti-staticbandwhenassembling/disassemblingtheproduct.
• Donotusemetaltweezers.Besuretouseplastictweezerswithattips.
(Anti-statictweezersarerecommended)
• There are several kinds of screws. Be sure to use the correct type of screws when
reassembling. It is advisable to sort the screws as shown below after removing them.

SE-G1/PCR-T273/SM-T274
– 4 –
3-2. Flowchart
Seetheowchartbelowfortheorderofdisassemblingmajorcomponents.
B. MAIN-UNIT S-type
D. AC-ADAPTOR
F. DISPLAY UNIT
G. PCB ASSY/E256-1
H. MOUNT/PCB
J. PRINTERI. KEY-BOARD-ASSY
E. ASSY/MOTOR,
ASSY/MODE KEY
A. COVER/PRINTER, REEL (PULLY/WIND, SPOOL/PAPER), Paper roll,
COVER/BATTERY, Memory protection batteries
C. MAIN-UNIT M-type
Drawer Type?
S Type M Type
3-3. Procedure
A. COVER/PRINTER, REEL (PULLY/WIND, SPOOL/PAPER), Paper roll
COBER/BATTERY, Memory protection batteries
A-1. Remove the COVER/PRINTER, REEL and Paper roll.
COVER/PRINTER
Paper roll
PULLY/WIND
SPOOL/PAPER
COVER/BATTERY
Memory protection batteries

SE-G1/PCR-T273/SM-T274
– 5 –
B. MAIN-UNIT S-type
B-1. Remove the cable tie.
B-2. Pull the drawer release lever and then remove the drawer.
NOTE: In case the drawer is locked with a drawer lock key, the lever does not activate.
Drawer release lever
Cable tie
NOTES ON ASSEMBLY
• Be sure to attach the cable tie.
B-3. Undo two screws.
Screws(S1)
B-4. Slide the MAIN UNIT toward the back. Disengage the MAIN UNIT as you pull out the AC power
cord.
Pull out the AC power cord.

SE-G1/PCR-T273/SM-T274
– 6 –
B-5. Disconnect the DRAWER connector.
Connector
NOTES ON ASSEMBLY
Hook the DRAWER cable on the hook.
B-6. Undo three screws and remove the COVER/PCB.
Screws(S2)
MAIN UNIT
DRAWER UNIT
COVER/PCB

SE-G1/PCR-T273/SM-T274
– 7 –
C. MAIN-UNIT M-type
C-1. Remove the cable tie.
C-2. Pull the drawer release lever and then remove the drawer.
NOTE: In case the drawer is locked with a drawer lock key, the lever does not activate.
NOTES ON ASSEMBLY
• Be sure to attach the cable tie.
C-3. Undo three screws and two plates.
Screws(S3)
Plates
C-4. Slide the MAIN UNIT toward the back. Disengage the MAIN UNIT as you pull out the AC power
cord.
Drawer release lever
Cable tie
Pull out the AC power cord.

SE-G1/PCR-T273/SM-T274
– 8 –
C-5. Loosen the nut and disconnect the ground wire.
C-6. Disconnect the DRAWER connector.
C-7. Remove the COVER/PCB.
Connector
Ground wire
C-8. Place the DRAWER back in the MAIN UNIT.
C-9. Undo one screw.
C-10.Slide the MAIN UNIT toward the back to remove it.
MAIN UNIT
Screw(S4)
COVER/PCB

SE-G1/PCR-T273/SM-T274
–9–
D. AC-ADAPTOR
D-1. Undotwoscrews.(M-typeonly)
Screws(S3)
D-2. Disconnect one connector.
D-3. RemovethePS-ASSY.
Connector
NOTES ON ASSEMBLY
Run the cable under the motor.
PS-ASSY
S3
PS-UNIT
CORD/POWER
HOLDER/PS-CORD
HOLDER/BUSH
PS-ASSY

SE-G1/PCR-T273/SM-T274
–10–
NOTES ON ASSEMBLY
WhentheAC-ADAPTORisreplacedwithanewpart,attachthecabletieandtape.
Cable tie Tape
E. ASSY/MOTOR, ASSY/MODE KEY
ASSY/MOTOR
E-1. Disconnect one connector.
E-2. Undo two screws and then remove the ASSY/MOTOR.
ASSY/MODE KEY
E-3. Disconnect one FFC.
E-4. Undo one screw and then remove the ASSY/MODE KEY.
ASSY/MODE KEY
ASSY/MOTOR FFC
Connector
Screws(S3)
Screw(S3)

SE-G1/PCR-T273/SM-T274
–11–
F. DISPLAY UNIT
F-1. Undo four screws.
F-2. Peel off the tape and then disengage the FFC.
FFC Tape
Screws(S7)
F-3. Remove the DISPLAY UNIT.
NOTES ON ASSEMBLY
Be sure that the LCD surfaces are clean.
DISPLAY UNIT

SE-G1/PCR-T273/SM-T274
–12–
F-4. Disengage two hooks and then remove the FRAME/DISPLAY.
Hooks
FRAME/DISPLAY

SE-G1/PCR-T273/SM-T274
–13–
G. PCB ASSY/E256-1
G-1. Disconnect one connector and two FFC.
G-2. Undo two screws.
FFC
Connector
FFC
Screws(S4)
G-3. RemovetheE277-1-ASSY.
PCBASSY/E256-1
Unhook the PCB.

SE-G1/PCR-T273/SM-T274
–14–
H. MOUNT/PCB
H-1. Undo three screws.
H-2. Remove the MOUNT/PCB.
Screws(S4)
Screw(S3)
MOUNT/PCB
I. KEY-BOARD-ASSY
I-1. Undo four screws.
Screws(S3)
I-2. UndotwoscrewsandthendisassembletheKEY-BOARD-ASSY.
KEY-BOARD-ASSY
CHASSIS/KEY BOARD
FPC
SPACER
SHEET/COMMON
Hooks
Screws(S8)
CHASSIS/KEY BOARD

SE-G1/PCR-T273/SM-T274
–15–
J. PRINTER
J-1. Undo one screw.
J-2. Remove the PRINTER.
Screw(S3) PRINTER
NOTE: The PLATEN ARM must be open to remove the PRINTER.
ARM/PLATEN
NOTE: When replacing the PRINTER with a new part, remove the roller from the new
PRINTER and replace it with the roller for the PLATEN ARM.
Roller

SE-G1/PCR-T273/SM-T274
– 16 –
4. DIAGNOSTIC PROGRAM
4-1. Launching The Diagnostic Program
NOTE: If a receipt has been issued in other modes, the Diagnostic Program will not launch.
When this happens, exit and restart the Diagnostic Program. To exit the Diagnostic Program,
see "4-2. Exiting the Diagnostic Program".
(1) Perform initialization.
1Remove the memory protection batteries.
2If the Power cord is plugged to a power outlet, unplug it.
3Wait for 15 seconds, and set the memory protection batteries again.
(2) Set the paper.
NOTE: Unless the paper is set, Error "E 10" is triggered and the program cannot be launched.
(3) Plug the Power cord to a power outlet.
(4) Enter year, month, day, and time.
NOTE: For US, enter month, day, and year in this order.
For other regions, enter day, month, and year in this order.
(5) Insert the mode key and turn on [PGM MODE]
(6) Press 99990000s.
(7) The diagnostic program starts and the version information of the diagnostic program is
automatically printed.
NOTE: Once the program starts, the status is displayed.
V. xxxx
INI. • • • • • • • • • • • • • • • • x
TEST • • • • • • • • 99990000
←Version
←x=1: Except for US, x=2: US
4-2. Exiting the Diagnostic Program
(1) Turn the Mode Switch to [OFF].
(2) Remove the memory protection batteries.
(3) Unplug the Power Cord.
(4) Wait for 15 seconds, and set the memory protection batteries again.
Memory protection batteries

SE-G1/PCR-T273/SM-T274
– 17 –
4-3. Notes For The Diagnostic Program
• To forcibly terminate a test, press ykey or turn the Mode Switch to [OFF].
If a test is terminated, the device prints out the following:
ESC
• For the number of test to perform, you may select "once" or "innite loop".
If "0" is entered as the number of times to perform the test, the test will be performed only once.
If any value between "1" and "9" is entered, the test is repeated innitely. To forcibly terminate the
innite loop, press ykey or turn the Mode Switch to [OFF].
• If a test result fails, the test is terminated regardless of the number of times previously set to perform.
• If the Mode Switch is turned to [OFF] while the Diagnostic Program is running, the light on the
7-Segment turns off. Any command entered during this time is not accepted.
• The winder motor rotates during printing. (No R/J switching function available.)
• If a command of 8 digits or more is entered, the values entered initially are canceled.
2552551130s.
If the above command is entered, the values indicated with double-lined boxes will be displayed in
the 7-Segment.
The rst two digits, "2" and "5", will be canceled and, therefore, will not be displayed.
• When a command starts with "0", "0" will not be printed.
• When printed characters are hidden behind the printer cover, press fkey to advance the printer
paper.
4-4. Check Item
This diagnostic program tests the following items.
No. Item Operation Page
1 Status Display - 18
2Batch Test
(Display/ROM/Printer/Time Setting/Drawer/Buzzer) 1 19
3 Internal ROM Check SUM Test n518 20
4Display Test 221 20
5 Internal Printer Character Print Test acn030 21
6
Time Setting hhmmss0070
yymmdd0170 22
Time Display 70
170
7Drawer Open Test n091 23
8Buzzer Test n092 23
9Key Test 94 24

SE-G1/PCR-T273/SM-T274
– 18 –
4-5. Operation Of Each Test
[1] Status Display
[Function]
The device status is indicated with ON/OFF of the segment.
[Display]
The gure below shows the relative display positions for the status information.

   
1Mode Switch 4Receipt Head Sensor
Display Status Display Status
1 PGM On Head up
2 RF Off Head down
3 REG
4 CAL 5Memory Protection Batteries
5 X Display Status
6 Z On Battery level: Low or 0%
Off Battery level: Normal
2PAD Terminal
Display Status
On Other than US
Off US
3Receipt Paper
Display Status
On No paper remaining
Off Paper remaining