CASIO CE3700, CE-3750 Service Manual

SERVICE MANUAL

INDEX

(without price)

ELECTRONIC CASH REGISTER

CE-3700 (EX-278) CE-3750 (EX-279)

DEC, 1994

CONTENTS

Page

1. SPECIFICATION.......................................................................................... 1

2. OPTION SPECIFICATIONS......................................................................... 3

3. INSTALLATION ........................................................................................... 3

4. INITIALIZE.................................................................................................... 4

5. MAJOR COMPONENT ................................................................................ 6

6. BLOCK DIAGRAM....................................................................................... 7

7. CIRCUIT EXPLANATIONS .......................................................................... 8

8. DISASSEMBLY / ASSEMBLY METHOD .................................................. 12

9. DIAGNOSTIC OPERATION....................................................................... 13

10. PROGRAMMING THE CE-3700 SERIES CASH REGISTERS................. 17

11. OPERATION .............................................................................................. 19

12. ERROR CODES......................................................................................... 20

13. IC DATA ..................................................................................................... 21

14. PCB LAYOUT ............................................................................................ 22

15. CIRCUIT DIAGRAM................................................................................... 23

16. PARTS LIST............................................................................................... 33

Product introduction

This machine CE-3700(EX-278) is a succession machine for CE-3400(EX-253). The simultaneous boot model is EX-279.

EX-278: The drawer not separation type. EX-279: The drawer separation type.

The Rom/Ram is the internal organs.

1. SPECIFICATION

1-1. Product

Operating temperature: 0 °C ~ 40 °C Operation air moisture: 10 % ~ 90 % Storage temperature: -25 °C ~ 65 °C Storage air moisture: 10 % ~ 95 % Bombardment strength: To add bombardment from 10 high cm by single support, and there

isn’t the problem.

1-2. Package status

Storage temperature: -25 °C ~ 65 °C Storage air moisture: 10 % ~ 95 % Vibration strength: 1.5 G Bombardment strength: To add bombardment from 60 high cm by single support, and there

isn’t the problem.

1-3. Accessory specifications

Roll paper: P-4575 (EX-P-4574), 45 X 12 X 30 D Stamp logotype: CSP-2030ASA-2 Ink for supplement: Super Ink KC Ink roll: IR-92 (EX-INK-IR-92-OP) Dust cover: Only 1 part neighborhood

1-4. Printer

CR-812A-009-14-001A: Europe CR-812A-009-15-001A: USA, Canada, UK, Europe

Printing type: ring select mode Output sheet number: 2 Chart specifications

Paper width: 44.5 ± 0.5 mm Maximum paper diameter: Ø 83 mm Maximum paper thickness: 0.06 ~ 0.085 mm

Materials: Regular paper Inking: Ink roll Validation

Print specifications: Yes

Sensor: No Paper cut: Manual Stamp

Color: Purple

Seal side dimension: 30 mm (W) X 20 mm (H)

— 1 —

1-5. The durability specifications

Switch

Key board switch: 5,000,000 times

Control lock: 20,000 times

Operation key 100,000 times

Feed switch 5,000,000 times

Receipt on/off switch 10,000 times

Reset switch 100,000 times Drawer:

Printer

MCBF: 2,000,000 line

Ink roll 400,000 line

Stamp

Ink: 50,000 times mechanism: 500,000 times

1-6. Electric specifications

Power consumption

Area 120 V 220 V 230V 240V

In action Max. 0.40 A 0.20 A 0.20 A 0.20 A

In holding Min. 0.09 A 0.05 A 0.05 A 0.05 A

Power off 0.08 A 0.04 A 0.04 A 0.04 A

1,000,000 times

1-7. Memory Protection

Protection battery: Vanadium Lithium secondary battery

Model: VL3032/IF2 Guard period: 90 days (25 °C) In perfection charge status Galvanic cell life expectancy: 5 years Recharge time: 48 hours in secondary battery

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 according

to the manufacture’s instructions.

1-8. Clock, date facility

Clock precision: Less than ±30 seconds (25 °C)

Automatic calendar: Until 2099

1-9. Electric power supply for an emergency (B-6)

Operating hour: 3 hours

Driving condition Processing time per customer one person: 60 sec./ person Purchase item number: 10 item / person 1 item registration amount of money number of digits: 4 digits / item The handling number of people for 1 hour: 30 person /hour

Recharge time: 8 hours

— 2 —

)

2. OPTION SPECIFICATIONS

2-1. Ink roll: IR-92

2-2. Waterproofing cover: WT-70

2-3. Roll paper: P-4575 (45×12×75D)

2-4. Electric power supply for an emergency: B-6

The parts for adding B-6 are not equipped. They should be ordered separately from service department.

The following parts are necessary to add B-6.

No. Code No. Parts Name Specification Q'ty

Q1 2200 3577 Transistor 2SA1015(GR,O,Y ZD1 2310 8879 Zener diode RD18EB1 1 D6,D7 2301 0011 Diode 1S2471 2 C5 2804 5476 Electrolytic capacitor 50RE47 1 R2,R3,R5 2600 7313 Carbon film resistor R-25-10K-J 3 R1 2600 5612 Carbon film resistor R-25-2K-J 1

6221 4218 Connector sub assembly E311294-1(#22) 1

2-5. Keyboard Conversion Kit: CVK-S2/-L2/-LLL2/-FS2

2-6. Ink for supplement Super ink K

3. INSTALLATION

Connection is done of earth-line of drawer and main frame like lower chart.

— 3 —

4. INITIALIZE

By Initialize code

Init. A: The format is done of EEPROM, and, without it is read, and Init. Code is written in.

Init. B: The data is read from EEPROM. 4-1. MAC To hang initial start-up of CPU and peripheral device, and All Clear makes memory. When there is Data backed up by EEPROM, by Initialize code, to develop it on Memory top.

Operation Display Printing

Power off

To continued pushing J-feed button, and To set the MODE switch to Program.

Header printing

To release from the J-feed button.

D1 ~ D5

#-2

Input value D1 ~ D5

D1 0: YYMMDD

D2 1: General (Add2, DDMMYY)

D3,D4 Department No. General 15 D5 Clerk specification Switch: 1,2,4

0000000000

D1D2D3D4D5

1: MMDDYY 2: DDMMYY

2: US (Add2, MMDDYY) 3: General (Add3, DDMMYY) 5: Canada (Add2, MMDDYY)

US 30

Password No.: 0 (U.S.A. & Canada)

XXXX: Rom Control No.

-- XXXX - D1D2D3D4D5

---------------

Note: Operation code with Init.B is set up as with settlement in “00000”

— 4 —

4-2. Auto or Reset switch initialize

Operation Display Printing

To push Reset SW.

Power on In Low batt.

D1 ~ D5

#-2

Input value D1 ~ D5

D1 0: YYMMDD

D2 1: General (Add2, DDMMYY)

D3,D4 Department No. General 15 D5 Clerk specification Switch: 1,2,4

0000000000

D1D2D3D4D5

1: MMDDYY 2: DDMMYY

2: US (Add2, MMDDYY) 3: General (Add3, DDMMYY) 5: Canada (Add2, MMDDYY)

US 30 Password No.: 0 (U.S.A. & Canada)

XXXX: Rom Control No.

-- XXXX - D1D2D3D4D5

---------------

Note: Operation code with Init.B is set up as with settlement in “00000”. 4-3. Flag clear

To do Initialization of work memory, and make the operation sequence with the latest status.

Operation Display Printing

Power off

To continued pushing R-feed button, and

Header printing

To set the MODE switch to Program.

XXXX: Rom Control No.

To release from the J-feed button.

#-2

FFFFFFFFF

P1 0

-- XXXX - P1P2P3P4P5P6P7P8

X1X2X3X4

M1M2-D1D2-Y1Y2

--------------Password for P1~P8 Password for X1~X4: X2/Z2

M1M2D1D2Y1Y2

D1D2D3D4D5

— 5 —

5. MAJOR COMPONENT

CPU UPD78044AGF080-3B9 Ram LC36256PLL

256K bit SRam

Printer Model CR812A-009-15-001A

MCBF 2,000,000 lines

Drawer USA DL-2416 D-15TC-A55SP-1*

Canada DL-2351 D-15TC-A54SP-1* UK DL-2751 D-15TC-A84SP-1* Other Countries DL-2350 D-15TC-A54P-1*

DL-2750 D-15TC-A84P-1*

Germany DL-2752 D-15BC-A84S-1*

CPU Pin Description

Pin Port Name I n/ Description Pin Port Name In / Description

No. No. Out No. No. Out

1 94 FIP6 O Display Digit Signal (Dg7) 41 32 TO2 O Receipt Common Signal 2 93 FIP5 O Display Digit Signal (Dg6) 42 31 TO1 O Auto cutter 3 92 FIP4 O Display Digit Signal (Dg5) 43 30 TO0 O Stamp 4 91 FIP3 O Display Digit Signal (Dg4) 44 3 INTP3 I Drawer sensor 5 90 FIP2 O Display Digit Signal (Dg3) 45 2 INTP2 I Key scan timing plus 6 81 FIP1 O Display Digit Signal (Dg2) 46 1 INTP1 I Power Down 7 80 FIP0 O Display Digit Signal (Dg1) 47 0 INTP0 I Printer 8 Power (VDD) 48 Gnd for Vpp (IC)

9 27 SCK0 I/O Data 7 49 7 0 O Address decoder (A12/D0) 10 2 6 SO1 I/O Data 6 5 0 7 1 O A13/Decod1 11 2 5 SI0 I/O Data 5 51 72 O A14/Decod1 12 2 4 BUSY I/O Data 4 5 2 Power (VDD) 13 2 3 STB I/O Data 3 53 12 7 FIP33 O Printer Head (HD8) 14 2 2 SCK1 I/O Data 2 54 126 FIP32 O Printer Head (HD7) 15 2 1 SO1 I/O Data 1 5 5 12 5 FIP31 O Printer Head (HD6) 16 2 0 SI1 I/O Data 0 56 124 FIP30 O Printer Head (HD5) 1 7 Reset Signal 57 12 3 FIP29 O Printer Head (HD4) 1 8 74 O CE(Ram Chip Enable) 58 1 22 FIP28 O Printer Head (HD3) 19 73 O R/W(Ram Write Enable) 59 121 FIP27 O Printer Head (HD2)

20 21 17 ANI7 I Key Input Signal (KI7) 61 11 7 FIP25 O Printer Head (HD10) 22 16 ANI6 I Key Input Signal (KI6) 62 11 6 FIP24 O Printer Head (HD9) 23 15 ANI5 I Key Input Signal (KI5) 63 11 5 FIP23 O Printer J-feed 24 14 ANI4 I Key Input Signal (KI4) 64 11 4 FIP22 O Printer R-feed 25 13 ANI3 I Key Input Signal (KI3) 65 11 3 FIP21 O Printer Motor 26 12 ANI2 I Key Input Signal (KI2) 66 11 2 FIP20 O Key Common Signal (KC9)

27 11 ANI1 I Key Input Signal (KI1) 67 11 1 FIP19 O 28 10 ANI0 I Key Input Signal (KI0) 68 11 0 FIP18 O 29 30 31 Clock Terminal 71 32 Clock Terminal 72 105 FIP15 O 33 34 System Clock 4.19MHz 74 103 FIP13 O 35 System Clock 4.19MHz 75 102 FIP12 O 3 6 37 O EEPROM CE 76 101 FIP11 O

3 7 36 BUZ O Buzzer 77 100 FIP10 O Key Scan Timing Plus 3 8 35 PCL O Decoder CE 7 8 97 FIP9 O Display Digit Signal (Dg10) 3 9 34 TI2 O DW1&2 79 96 FIP8 O Display Digit Signal (Dg9)

4 0 33 TI1 O Journal Common Signal 80 95 FIP7 O Display Digit Signal (Dg8)

Analog electric potential of AD converter (Gnd) 60 120 FIP26 O Printer Head (HD1)

Display Digit Signal / Key Common Signal (SGdb/KC8)

Display Digit Signal / Key

Analog electric power supply of AD converter (Vcc) 69 107 FIP17 O

Reference voltage input of AD converter (Gnd) 70 106 FIP16 O

Analog electric potential of AD converter(Gnd) 7 3 104 FIP14 O

Common Signal (SGtr/KC7) Display Digit Signal / Key

Common Signal (SGg/KC6) Display Digit Signal / Key

Common Signal (SGf/KC5) Pull Down electric potential for

Fip (VN) Display Digit Signal / Key

Common Signal (SGe/KC4) Display Digit Signal / Key

Common Signal (SGd/KC3) Display Digit Signal / Key

Common Signal (SGc/KC2) Display Digit Signal / Key

Common Signal (SGb/KC1) Display Digit Signal / Key

Common Signal (SGa/KC0)

— 6 —

6. BLOCK DIAGRAM

Standard Option

Printer

(CR812A)

Main Display

(10 columns)

Pop-uo Display

(10 columns)

RAM

(32K byte)

EEPROM

(512 byte)

Key board

Drawer

CPU

Multi Drawer

Compulsory Drawer

(USA, Canada,Germany, UK)

Buzzer

Power Supply

Back-up battery

(Vanadium Lithium)

Battery operation

(B-6)

— 7 —

7. CIRCUIT EXPLANATIONS

7-1. Power supply circuit

1) Diodes rectification bridge By diodes rectification bridge, alternating voltage is converted into DC voltage, and the electrical voltage is done filtering of by Capacitor C4.

2) Power supply circuit for B-6 The electrical voltage which puts in resistor 3 when line voltage includes anomaly changes, and transistor Q1 becomes on status, and CS signal is done outgoing of by this, and VP is supplied than Power supply B-6.

Note: The component for connection isn’t equipped with in plant shipping.

(service arrangement)

7-2. DC/DC converter circuit

2SD721(Q2) is Power voltage control transistor, and electric power supply is supplied in DCDC converter with 2SC3303(Q3). 2SC3303(Q3) does a work as oscillator. The frequency of 2SC3303(Q3) is controlled by signal done feed back of through RD27EB1.

7-3. Electrical voltage value in check point

Vc Vp Vcc/Vdd Vns Vs V f

Rated output electrical voltage Min: 23 V 20 V 5 V 32 V 27 V 4.75 V

Output voltage drift range Max: 42 V 2 V 0.3 V 1 0 % 1 0 % 7% Output voltage drift range AC DC DC DC DC AC

— 8 —

7-4. Reset circuit

The voltage fluctuation of VDD is controlled of IC10 (S-80727AN). CPU is done Reset by pushing Reset Switch or drifting VDD.

S-80727AN

Vdd

Reset SW

CPU

Reset

7-5. Data communication between CPU and EEPROM IC11(BR93LC46A).

EEPROM is Rom that write / erase is possible electrically. BR93LC46A is a non- volatile register, and serial data of 16 bit can be memorized with 64 register.

CPU

CS SK

CS: Chip select SK: Serial data clock DI: Serial data input DO: Serial data output

64 words X 16 bits 1,024 bits

EEPRom

1 2 3 4

36 14 15 16

EEPCS AD2 AD1 AD0

— 9 —

[ Data reading procedure ] When the CPU read the data of EEPROM, CPU send the CS signal and SK signal to EEPROM.

Then CPU send the address to EEPROM, and then EEPROM return the data to CPU.

Address

Data

Output data here

[ Data writing procedure ] When the CPU save the data to EEPROM, CPU sends the CS and SK signal to EEPROM.

And CPU send the address and data to EEPROM from pin No. 15. When the EEPROM writes the data, EEPROM outputs the busy signal form DO terminal to CPU. After finish writing, EEPROM outputs the ready signal from DO terminal to CPU.

Status

High Impedance

DataAddress

READY(H)

BUSY(L)

— 10 —

7-6. Time chart

1) RAM writing timing

16.4 us 13.6us

A0 WE A1 CE A2 D0 A3 D1 A4 D2 A5 D3 A6 D4 A7 D5

1.4us 15.0us

B2 A0 B3 B4 A1 B5 A2 B6 A3 B7 A4 B0 A6 B1 A7

2) RAM reading timing

A0 WE A1 CE 18.3us A2 D0 A3 D1 A4 D2 A5 D3 A6 D4 A7 D5

3.95us

7.45us

B2 A0 B3 B4 A1 B5 A2 B6 A3 B7 A4 B0 A6 B1 A7

3) EEP-ROM Writing and reading timing

A0 CS A1 SK A2 DI A3 DO

29us

— 11 —

8. DISASSEMBLY / ASSEMBLY METHOD

1) Remove the Printer cover.

2) Upper case can remove it from by 4 places screws of printer four corners.

(Lower chart 1 reference)

3) It comes off while sliding of Upper case backward by raising it.

4) Key board can remove it from by 4 places screws. (Lower chart 2 reference)

— 12 —

9. DIAGNOSTIC OPERATION

9-1. Start-up method

By the next operation, EX-278 enters Test mode.

1) Mode switch off.

2) To continued pushing J-feed button.

3) To set the Mode switch to Program.

4) To release from the J-feed button.

5) To input 9 9 9 9 9 0 0 0 0 0 #2

Printing out

00-00-00

00:00

0000

<Feed>

-- xxxx --

----------------

The cancellation of test mode do INIT.

9-2. Description

1) Key code representation: expect Value number, Clear and Feed button.

2) Various switches status display

3) Testing for Display, Print, DRW, RAM: Value number 1 column + #2

4) Testing for E2PROM: Value number 1 column + #2

9-3. Key code representation

RF JF 062 C 055 053 051 045 039 033 027 021 018 072 067 061 056 054 052 050 044 038 032 026 020 017 071 066 060 7 8 9 049 043 037 031 025 019 016

070 065 059 4 5 6 048 042 036 030 024 014 015 069 064 058 1 2 3 047 041 035 029 023 075 073

068 063 057 0 011 012 046 040 034 028 022 074 013

X: “Version No.” or “- - • • • • - -”

013: #1 key 014: #2 key

— 13 —

9-4. Various switch status display

Push clerk

0: Non 1: Clerk 1 2: Clerk 2 3: Clerk 3 4: Clerk 4

Mode representation

1: PGM 2: RF 3: REG1 4: REG2 5: X 6: Z 7: X2Z2 8: Off 0: Disconnected

0: Fixed

For Taiwan

1: Journal mark sensor 0: Except it

For Taiwan

1: Receipt mark sensor 0: Except it

1: Fixed

Non taxable pad For Japan 0: Taxable (pat short) 1: Non-taxable (pat open)

Drawer sensor

0: Open 1: Close

Journal near end

1: Near end 0: Out of sense

Receipt off switch

0: Receipt on 1: Receipt off

Key clerk

0: Non 1~9, A~F:Clerk code (Hexadecimal representation)

— 14 —

9-5. Print, Display, Drawer and Ram testing to do a various test by value number key. The following

code print by all means then.

1 # 3 # 4 # 5 #

96 #

8 # 9 #

1) All lighting, Ram, R/W, setting the time and date, drawer

1 #2

1 #2: All testing 3 #2: E2PRom r/w testing 4 #2: E2PRom reading testing 5 #2: Ram reading testing 96 #2:E2PRom Initialization 8 #2: Printing testing 9 #2: Clock testing

opening, printing, receipt(Japan) stamp and receipt issue.

Display: All lighting

Ram: R/W

normal end: To be continued Abnormal end: To do the following printing then breaking

- - - - - - - 2

Receipt printing Beeping one shot buzzer on

Setting date and time:

Date: Dec. 31st 1994 Time: 23:59

Drawer open:

Drawer No.1 and No.2 are opened.

Test printing:

To do the following print The first line does print in receipt, journal independence. The second line does print at receipt, journal same time.

01234567FS@ 01234567FS@

Receipt stamp: (only japan) Receipt issue:

Testing display: To do indication as follows till key or a state changes

1234567890

— 15 —

2) This does R/W test of testing area of E2PRom during single word,

3 #2

and, at the time of normal, does normal termination print.

Abnormal end: To do the following printing then breaking

- - - - - - - 8

Receipt printing Beeping one shot buzzer on

3) This does read only test of testing area of EEPRom during single word.

4 #2

This test is continued till off mode or electric power supply enters it.

Abnormal end: To do the following printing then breaking

- - - - - - - 8

Receipt printing Beeping one shot buzzer on

4) Read only test .

5 #2

Outside Ram(0000H~7FFFH) read in testing The address comparing data which comes under it = (A0-A7) + (A8-A14) This test is continued till off mode or electric power supply enters it.

Abnormal end: To do the following printing then breaking

- - - - - - - 2

Receipt printing Beeping one shot buzzer on

5) Blanking (OFFH writing) of data in EEPRom entirely.

9 #26

6) All time ring print testing

8 #2

Time of day, a date are turned into zero entirely.

- - - - - - - 2

Receipt printing

7) Time of day representation testing

9 #2

Time of day indication is done till clear Key

23 -59 12

— 16 —

10. PROGRAMMING THE CE-3700 SERIES CASH REGISTERS

The Casio CE-3700 series is capable of a versatile range of features and function that give it the capability to readily adapt to almost any retail environment. The cash register is programmed at the factory with the most standard operating features and functions. Your local business requirements, however, may call for other functions of a totally different keyboard layout.

This section explains the different functions available, as well as the procedures that you can use to tailor the cash register to specific needs. Programming is simplified through the use of worksheets for each function, and step-by-step flow charts that walk you through each procedure.

10-1. Setting the proper MODE for programming

• Program Modes and feature

Mode Purpose Mode indicator

Program 4 Program 3 Program 1

You should perform the procedure shown blow as the first step of programming. Notice that the flowchart ends with an arrow on the bottom. This indicates that you should continue to the next programming procedure for the mode you specify.

Assignment of 89 functions to programmable keys to create the desired keyboard layout Definition of machine features and key functions that enhance printing, totalizing, reporting and overall operation Programming of time, date and unit prices, amounts, rates, etc. for enhanced security and automatic registration

P4 P3 P1

• Procedure

Program

Program mode

Sub

Total

#1*

Key

Program mode

Sub

Total

Set the Mode switch to Program

Enter a number to specify the program mode (1 ~ 4) Press the

Sub total

key. The display should show the letter “P” followed by the program number you specified (i.e. P3 = Program mode 3).

Press the

# 1

key.

Enter 4-digit password. Skip this step when the password is not programmed.

Press the

CA/Amt

Tend

Sub total

key.

key on standard keyboard.

Note: Program mode 1 is automatically set when the Mode switch is set to Program from

another setting.

• Recommended programming sequence Generally, you should perform programming in the following sequence. Note that we recommend you check what is programmed for each mode before proceeding to the programming operation.

— 17 —

+ 42 hidden pages