Casio 140CR-272 User manual

SERVICE MANUAL
(without price)
ELECTRONIC CASH REGISTER
140CR/PCR-272
(EX-260)
FEB. 2009

CONTENTS
140CR/PCR-272 PAGE
1. SPECIFICATIONS ...................................................................................................... 1
2. MACHINE INITIALIzATION ....................................................................................... 3
3. DISASSEMBLy .......................................................................................................... 4
4. CIRCUIT EXPLANATION......................................................................................... 12
5. DIAGNOSTIC OPERATION ..................................................................................... 13
6. TROUBLESHOOTING.............................................................................................. 18
7. PCB LAyOUT........................................................................................................... 19
8. CIRCUIT DIAGRAMS ............................................................................................... 20
9. PARTS LIST ............................................................................................................. 24

— 1 —
1. SPECIFICATIONS
1-1.Electricalspecications
• Power consumption
In operation Max.
120 V 220 V 230 V 240 V
0.1 A 0.05 A 0.05 A 0.05 A
• Memory protection Back-up battery
Back-up period
Battery life
Mangan Battery (UM-3×3 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 % ~ 95 %
• Storage temperature -25 °C ~ 65 °C
• Storage humidity 10 % ~ 95 %
• Vibration strength 1.5 G (The machine must be in the carton box)
1-3.Maincomponents
• CPU Name
Number of control bit
UPD780058BGC179-8BTA
8 bit
• Thermal printer Name
Print method
MCBF
M-42V-009-040
Print wheel selecting type serial printer
700,000 lines
• Roll paper Type
Size
Roll diam
Fine-quality paper
28 +0/-1 mm
80 mm or less
1-4. Drawer List
Type DrawerName Specication
S DL-1334 D-21L2C-D53RM-4
S DL-1843 D-21LC2-D54RM-4
MDL-2812 D-25L2C-B84RM-4

— 2 —
1-5.OptionList
DeviceName Model Note
• Roll paper P-5860 58 × 12 × 60D
• Ink roll
• Water cover WT-92
CAUTION
Dangerofexplosionifbatteryisincorrectlyreplaced.
Replaceonlywiththesameorequivalenttyperecommended
bythemanufacturer.
Disposeofusedbatteriesaccordingtothemanufacture’sinstructions.
VORSICHT !
ExplosionsgefahrbeiunsachgemäßemAustauschderBatterie.
ErsatznurdurchdenselbenodereinenvomHerstellerempfohlenen
gleichwertigenTyp.
EntsorgunggebrauchterBatteriennachAngabendesHerstellers.
ADVARSEL !
Lithiumbatteri-Eksplosionsfarevedfejlagtighándtering.
Udskiftningmákunskemedbatteriafsammefabrikatogtype.
LevérdetbrugtebatteritilbagetilleverandØren.

— 3 —
2. MACHINE INTIALIZATION
2-1.Toinitializethecashregister
Note:YoumustinitializetheCashregisterandinstallthememoryprotectionbatteries
beforeyoucanprogramthecashregister.
1. Set the Mode Switch to OFF.
2. Load the memory protection batteries.
3. Plug the power cord of the cash register into an AC outlet.
4. Set the Mode Switch to REG.
2-2.Toloadthememoryprotectionbatteries
1. Remove the printer cover.
2. Open the battery compartment cover.
3. Load 3 new SUM-3 ("AA") type batteries into the compartment.
Be sure that the plus (+) and minus (–) ends of each battery are facing in the directions indicated by the
illustrations inside the battery compartment.
4. Replace the memory protection battery compartment cover back into place.
5. Replace the printer paper and printer cover.
REPLACEMEMORYPROTECTIONBATTERIESATLEASTONCEEVERYYEAR.

— 4 —
3. DISASSEMBLY
Make sure to use correct Screws when assembling since
there are several kinds of them. It is a good idea to sort
them as shown in the right when disassembling.
A. Removing the UPPER CASE block
B. MODE-KEY-SW-ASSY
D. MAIN PCB, PRINTER UNIT and MOTOR
E. KEY-BOARD-ASSY
F. Removing the DRAWER CASE
C. 7 SEGMENT LCD
Disassembly Procedure
Disassemble the main units in the sequence shown below.

— 5 —
A. Removing the UPPER CASE block
A-1. Remove the printer cover.
A-2. Remove two screws.
A-3. Remove the UPPER CASE.
Screw (S2)Screw (S1)
A-4. Remove the drawer cable.
UPPER CASE
Drawer
Drawer cable
Tape
ASSEMBLING TIPS:
When assembling the UPPER CASE, be sure to x the drawer cable with tape.
Drawer cable

— 6 —
C. Removing the 7 segment LCD
C-1. Remove two hooks and then remove the DP-BOARD.
C-2. Remove two hooks and then remove the 7 SEGMENT LCD.
Hooks
DP-BOARD
Hooks
B. Removing the MODE-KEY-SW-ASSY
B-1. Remove the FFC.
B-2. Remove one screw and then remove the MODE-KEY-SW-ASSY.
FFC
Screw (S3)
MODE-KEY-SW-ASSY

— 7 —
C-3. Unsolder two FCCs on the 7 segment LCD.
ASSEMBLING TIPS:
Start connecting from the NO.1 pin whose color is blue.
D. Removing the MAIN PCB, PRINTR UNIT and MOTOR
D-1. Remove one screw and then remove the PR-MOUNT.
D-2. Remove the PRINTER UNIT.
ASSEMBLING TIPS:
When assembling the PR-MOUNT, engage it between the UPPER-CASE and the PRINTER.
FFCs Soldered parts
Screw (S3) PRINTER UNIT
PR-MOUNT

— 8 —
D-3. Remove one FFC and remove one connector.
D-4. Remove one screw and then remove PCB-HOLDER-L.
FFC
Connector
Screws (S4)
Screws (S4)
D-5. Remove four screws.
D-6. Remove the MAIN PCB.
PCB-HOLDER-L
Screw (S2)