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