Casio PCR250, 150CR, 110CR User Manual

SERVICE MANUAL

(with price

ELECTRONIC CASH REGISTER

110CR/PCR250 (EX-266)

150CR (EX-267)

JAN. 1995

Printer Model : M42V

INDEX

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CONTENTS
	Page
1.FEATURES ...................................................................................	1
2.SPECIFICATIONS ...................................................................................	1
3.OPTION ...................................................................................	2
4.MAC OPERATION ...................................................................................	2
5.BLOCK DIAGRAM ...................................................................................	3
6.CIRCUIT EXPLANATIONS .............................................................................	4
6-1. Power supply circuit .................................................................................	4
6-2. Reset circuit ...................................................................................	5
6-3. Data communication between CPU and EEPROM .................................	6
6-4. Printer drive circuit ...................................................................................	8
6-5. Pin description ...................................................................................	9
7.DISASSEMBLY .................................................................................	10
7-1. To open the upper case .........................................................................	10
7-2. To remove the Main PCB.......................................................................	10
7-3. To remove the keyboard ass'y...............................................................	10
8. DIAGNOSTOC OPERATIONS ....................................................................	11
9. IC DATA .................................................................................	16
9-1. LB1268 .................................................................................	16
9-2. S-80728AN-Z .................................................................................	16
10.CIRCUIT DIAGRAM .................................................................................	17
11.PCB LAYOUT .................................................................................	28
12. PARTS LIST .................................................................................	29

1. FEATURES

	Function	110CR	PCR-250	150CR	150CR
					(U.S.A.,Canada)
	Depertment number	4	8	4	8
	PLU function	Nil	16	Nil	16
	Customer display	Nil	Nil	Effective	Effective
	PRG data back up function	Effective	Nil	Effective	Nil
	Calculator function	Effective	Effective	Effective	Effective

2. SPECIFICATIONS

110CR/PCR-250

				100V	120V	220V	230/240V
Power consumption	In operation	Max.	4.5W	0.08A	0.09A	0.04A	0.05A
		Stand-by	-	0.05A	0.06A	0.03A	0.04A
	Mode SW OFF		-	0.04A	0.05A	0.02A	0.03A
Memory protection	Backup battery	Mangan battery UM-3 x 3 pcs. (25°C)
	Backup period	1 year (25°C)
	Battery life	Replace every 1 year
Clock and calender	Accuracy	Within ±30 sec. per month
	Auto calender	Effective until 2099 A.D.
Environment	Operating temperature	0°C ~ 40°C
	Operating humidity	10% ~ 90%
	Storage temperature	-25°C ~ 65°C
	Storage humidity	10% ~ 95%
Printer	Model	M-42V
	Print method	Print wheel selecting type serial printer
	Print digits	12 digits (Amount 10 digits : Symbol 2 digits)
	MCBF	700,000 lines
Ink roller	Model	IR-40 (Purple)
	Life	1,000,000 characters
Roll paper	Type	Fine-quarity paper
	Size	57.5±0.5 mm
	Roll diameter	80 mm or less
Drawer	S drawer (Coin 5/Bill 4)	DL-1313 ( for U.S.A.)
	S drawer (Coin 5/Bill 3)	DL-1817 (for except U.S.A.)
	M drawer (Coin 5/Bill 4)	DL-2439 (for Europe, Other countries)
	M drawer (Coin 8/Bill 4)	DL-2749 (for Europe,U.K. and Other countries)

- 1 -

150CR

			120V	220V	230/240V
Power consumption	In operation	Max.	0.11A	0.05A	0.06A
		Stand-by	0.07A	0.04A	0.05A
	Mode SW OFF		0.06A	0.03A	0.04A
Memory protection		Same as 110CR
Clock and calender		Same as 110CR
Environment		Same as 110CR
Printer		Same as 110CR
Ink roller		Same as 110CR
Roll paper		Same as 110CR
Drawer	S drawer (Coin 5/ Bill 4)		DL-1313 (for U.S.A.)
	S drawer (Coin 5/Bill 3)		DL-1817 (for Europe,U.K.,
			germany,Other countries)
	M drawer (Coin 5/Bill 4)		DL-2439 (for Europe,
			Canada, Other countries)
	M drawer (Coin 8/Bill 4)		DL-2749 (for Europe,U.K.,
			Other countries)

3. OPTIONS (110CR/PCR-250/150CR)

• Wet cover

WT-69

4.MAC OPERATION (Memory All Clear operation)

1.Set the Mode Switch to OFF.

2.Plug the power cord of the ECR off an AC outlet.

3.Remove the memory protection batteries.

4.Leave the ECR a few minutes and plug the power cord into an AC outlet.

5.Set the memory protection batteries.

6.Turn the Mode Switch to REG position.

- 2 -

5. BLOCK DIAGRAM

Voltage detection

Buzzer

Winder Motor drive circuit

Printer drive circuit

Drawer drive circuit

Reset IC

EEPROM

DISPLAY

CPU

KEYBOARD

- 3 -

6. CIRCUIT EXPLANATION

6-1. Power supply circuit

G

I

A B H

C

D E F

1.Plug the power cord into AC outlet, secondary voltage (9.65VAC) of the power transformer T1 will be appears at "A" point.

2.Then, its AC voltage is rectified by the diode bridge and change it to DC voltage.("B" point)

3.DC voltage appears more than 7V at the corrector of power transistor 2SD2396, and then the power transistor is turned on.

Then VP is supplied. ("C" point)

4.When the VP voltage becomes more than 3.3V, the transistor 2SD945 is turned on and then PWD signal becomes GND level. ("F" point)

When the PWD signal becomes GND level, CPU knows no power failure.

5.VP is supplied at the DC DC converter trans T2, the DC DC converter makes display and logic circuit voltage.

VN ,VF1,VF2 : Display voltage ("I", "J" point )

VDD : Logic circuit voltage ("H" point)

Transistor 2SD1803 is used for oscillating the primary voltage of DC DC converter trans.

- 4 -

	D	C
		G
A		I

H

GND

B

E

							F
	A	B	C	D	E	F		G	H	I
Power ON	9.65 VAC	10.52V	5.76V	10.45V	0.78V	0.12V		Pulse	5.07V	-23.9V
Plug out	0	0	0	0	0	4.13V		0	4.30V	0

Voltage level is measured at the following condition.

1.Plug the power cord in AC outlet.

2.Mode switch position : REG, display 0.00

3.Put in the memory protection batteries.

4.Plug out : Plug out the power cord , the memory protection batteries in.

6-2. Reset circuit	VDD

S-80728AN

GND

RESET

Pin No.17

When the voltage level at the pin no.17 of CPU is not stable, CPU does not work properly.

To make a stable voltage, the reset IC(S-80728AN) is used for this circuit.

In case the voltage level of VDD becomes down output terminof reset IC is out the stable voltage.

- 5 -

6-3. Data communication between CPU and EEPROM

	CPU				EEPROM
		1
	Pin No.23				CS
		2				CS : Chip enable
					SK
	Pin No.14
						SK : Sirial data clock
		3
					BR93LC46A
						DI : Serial data input
	Pin No.15				DI
		4				DO : Serial data outpu
					DO
	Pin No.16

EEPROM is a memory to possible write/erase by electricity .

The BR93LC46A privides efficient nonvolatile read/write memory arranged as 64 registers of 16 bits each.

(64 words X 16 bits = 1024 bits)

[Block diagram]

CS

Command code

Power detection

SK

controller

Clock generator

Write

High voltage

protection

genarator

DI

Command

Address

Address

6 bits

register

buffer

decorder

6 bits

1024 bit

EEPROM array

Data

R/W

16 bits

DO

Dammy bit

register

amplifier

16 bits

- 6 -

[Data reading procedure]

When the CPU read the dara of EEPROM, CPU send the CS signal and SK signal to EEPROM. Then, CPU send the address to EEPROM, and then EEPROM send the data to CPU.

CS

SK

DI	Address
DO	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 from DO terminal to CPU. After finish writing, EEPROM outputs the ready signal from DO terminal to CPU.

Status

CS

SK

Address

Data

DI

READY(H)

DO

High Impedance

BUSY(L)

- 7 -

6-4. Printer drive circuit

	RP
M42	Pt
	PT
Printer	MD
	HD

CPU

Pin No.44

Pin No.45

Pin No.47

Pin No.62

Pin No.63

When the CPU start printing, CPU send MD signal to rotate motor unit.

Then the printer send back the RP(reset pulse),PT and PT (Timing pulse) to CPU. After CPU receive RP,PT andPT, CPU knows the position of printin wheel.

And then, CPU send HD signal to operate the printing magnet when the character selected. The CPU counts the TP signal to select the character.

6-5. Pin description (CPU uPD78042AGF)

Pin No.	Signal	In/Out	Mode SW	Mode SW	AC cord	Description
			REG	OFF	Plug off
1	P94/FIP6	Out	Pulse	-24V	L	Display digit signal DG7
2	P93/FIP5	Out	Pulse	-24V	L	Display digit signal DG6
3	P92/FIP4	Out	Pulse	-24V	L	Display digit signal DG5
4	P91/FIP3	Out	Pulse	-24V	L	Display digit signal DG4
5	P90/FIP2	Out	Pulse	-24V	L	Display digit signal DG3
6	P81/FIP1	Out	Pulse	-24V	L	Display digit signal DG2
7	P80/FIP0	Out	Pulse	-24V	L	Display digit signal DG1
8	VDD	-	+5V	+5V	+5V	VDD terminal
9	P27/SCK0	In/Out	-	-	-	Not used
10	P26/SO0/SB1	In/Out	-	-	-	Not used
11	P25/SI0/SB0	In/Out	-	-	-	Not used
12	P24/BUSY	In/Out	-	-	-	Not used
13	P23/STB	Out	H	H	H	Strobe signal for AVREF
14	P22/SCK1	Out	L	H	H	SK signal for EEPROM
15	P21/SO1	Out	L	H	H	DI signal for EEPROM
16	P20/SI1	In	H	H	H	DO signal for EEPROM
17	RESET	In	H	H	H	Reset signal
18	P74	Out	H	H	L	Drawer open signal
19	P73	Out	L	H	H	Common signal for PAD condition
20	AVSS	-	GND	GND	GND	GND for AD converter
21	P17/ANI7	In	GND	GND	GND	GND
22	P16/ANI6	In	GND	GND	GND	GND
23	P15/ANI5	Out	L	L	H	Chip enable signal for EEPROM
24	P14/ANI4	In	GND	GND	GND	GND
25	P13/ANI3	In	GND	GND	GND	GND
26	P12/ANI2	In	GND	GND	GND	GND
27	P11/ANI1	In	GND	GND	GND	GND
28	P10/ANI0	In	H	H	H	Low battery detection terminal
29	AVDD	-	H	H	H	Power for AD converter
30	AVREF	In	L	L	L	Voltage for AD converter (VDD)
31	XT1	In	Pulse	Pulse	Pulse	Sub system clock
32	XT2	-	Pulse	Pulse	Pulse	Sub system clock
33	VSS	-	GND	GND	GND	GND
34	X1	In	Pulse	L	L	Main system clock
35	X2	-	Pulse	H	H	Main system clock
36	P37	In	L	L	L	Mode switch position (OFF)
37	P36/BUZ	Out	L	L	L	Buzzer signal
38	P35/PCL	In	L	L	L	Mode switch position (Z)
39	P34/T12	In	L	L	L	Mode switch position (X)
40	P33/T11	In	L	L	L	Mode switch position (CAL)

- 8 -

	Pin No.	Signal	In/Out	Mode SW	Mode SW	AC cord	Description
				REG	OFF	Plug off
	41	P32/TO2	In	H	L	L	Mode switch position (REG)
42		P31/TO1	In	L	L	L	Mode switch position (RF)
43		P30/TO0	In	L	L	L	Mode switch position (PRG)
44		P03/INTP3/CI0	In	H	L	L	Reset pulse RP from printer
45		P02/INTP2	In	H	Pulse	L	Sub timimg pulse Pt from printer
46		P01/INTP1	In	L	L	H	Power down signal PWD
47		P00/INTP0/TI0	In	H	L	L	Main timing pulse PT from printer
48		IC	-	GND	GND	GND	GND
49		P72	In	H	H	H	TAX PAD signal for Japan
50		P71	In	-	-	-	PAD2 condition
51		P70	In	L	H	H	PAD1 condition
52		VDD	-	+5V	+5V	+5V	Power (+5V)
53		P127/FIP33	In	L	L	L	Key input signal KI7
54		P126/FIP32	In	L	L	L	Key input signal KI6
55		P125/FIP31	In	L	L	L	Key input signal KI5
56		P124/FIP30	In	L	L	L	Key input signal KI4
57		P123/FIP29	In	L	L	L	Key input signal KI3
58		P122/FIP28	In	L	L	L	Key input signal KI2
59		P121/FIP27	In	L	L	L	Key input signal KI1
60		P120/FIP26	In	L	L	L	Key input signal KI0
61		P117/FIP25	Out	L	L	L	Winder motor drive signal WMO
62		P116/FIP24	Out	L	L	L	Printer moter drive signal PMO
63		P115/FIP23	Out	L	L	L	Head drive signal for printer PHD
64		P114/FIP22	Out	Pulse	L	L	Key common signal KC3
65		P113/FIP21	Out	Pulse	L	L	Key common signal KC2
66		P112/FIP20	Out	Pulse	L	L	Key common signal KC1
67		P111/FIP19	Out	Pulse	L	L	Key common signal KC0
68		P110/FIP18	Out	H	H	H	Not used (+5V)
69		P107/FIP17	Out	Pulse	-24V	L	Display segment signal Sdp (Decimal point)
70		P106/FIP16	Out	Pulse	-24V	L	Display segment signal Sg
71		VLOAD	-	-24V	-24V	L	Display voltage VN
72		P105/FIP15	Out	Pulse	-24V	L	Display segment signal Sf
73		P104/FIP14	Out	Pulse	-24V	L	Display segment signal Se
74		P103/FIP13	Out	Pulse	-24V	L	Display segment signal Sd
75		P102/FIP12	Out	Pulse	-24V	L	Display segment signal Sc
76		P101/FIP11	Out	Pulse	-24V	L	Display segment signal Sb
77		P100/FIP10	Out	Pulse	-24V	L	Display segment signal Sa
78		P97/FIP9	Out	H	Pulse	L	Mode switch common signal
79		P96/FIP8	Out	Pulse	-24V	L	Display digit signal DG9
80		P95/FIP7	Out	Pulse	-24V	L	Display digit signal DG8

Note : Above data is measured under following condition.

Mode SW REG : AC cord plug in the AC outlet, Memory protection batteries in, Mode SW position : REG

Mode SW OFF : AC cord plug in the AC outlet, Memory protection batteries in, Mode SW position : OFF

AC cord plug off : AC cord plug out the AC outlet, memory protection batteries in, Mode SW position : OFF

- 9 -

7. DISASSEMBLY

7-1. To open the upper case

1.Take out the printer cover and release the screw A.

2.Pushing the position B and slide the upper case to backward.

3.Lift up the upper case and remove the drawer connector.

Screw A

Slide this direction

Position B

Position B

7-2. To remove the Main PCB

1.Remove all cables on Main PCB and release 3 pcsof screw B.

2.Take out the Main PCB ass'y.

Screw B

Hook		Hook
Hook		Hook

7-3. To remove the keyboard ass'y

1. Release the 4 hooks and push the keyboard ass'y down.

- 10 -

8. DIAGNOSTIC OPERATIONS

8-1. To start the diagnostic operation

1.Make MAC operation.

2.Turn the mode switch to PGM position.

3.Input "99999999" and press "SUB TOTAL" key.

Note : Do not issue the receipt under REG / RF / X / Z mode before execute the diagnostic. If the machine issued a receipt, the diagnostic does not start.

Print ing Layout		Receipt sample
0 0 - 0 0 - 0 0		0 0 - 0 0 - 0 0
0 0 - 0 0 # 0 0 0 2		0 0 - 0 0 # 0 0 0 2
- d1d2d3d4 - - d5d6d7		- 2 8 6 2 - - 1 - -

d1d2d3d4 : Version No.

	d5 :	PAD condition
		0 :	Japan
		1 :	Export (ADD2)
		2 :	US / Canada
		3 :	Export (ADD3)
	d6 :	4 :	Export (ADD1)
		0 :	Non taxable (Japan)
		1 :	Taxable (Japan)
	d7:	- :	Export version
		0 :	118ER (Japan)
		1 :	108ER (Japan)
		- :	Export version

8-2. Check items

The following test can be checked in the test mode.

1.Key code check

2.Switch check

3.Individual function check

4.Country code write operation for EEPROM (PAD data)

- 11 -

8-3. Operations

1. Key code check (Hard key code)

When pressing a key, the machine displays the following key code.

Key code table

	FEED	029		027			021
	C	028		026			020
7	8	9		025			019	017
4	5	6		024			018	016
1	2	3		023			014	015
0	011	012		022			013	127

Display

0 2 2

022 : Hard key code

2. Switch check

Press " C " button, the switch condition is appered on a display.

Always 0

No display

No display

PAD1 condition

EEPROM mounted : 1

PAD2 condition		No EEPROM		: 0
Open : 1
Short : 0 (Export version)
Non taxable PAD
Short : 1
Open : 0 (export version)
FEED button
OFF :	0
ON :	1
Mode key condition
PRG :	1	X :	5
RF :	2	Z :	6
REG :	3	OFF :	8
CAL :	4	Others: 0

- 12 -

3. Individual test

After finishing each test, the machine issues the following receipt.

Except US / Canada		US / Canada
#d1		d1 #
Sample receipt	d1 : Test command No.

#1

1234567890ST#

1. General test

Press "1" key and "SUB TOTAL" key.

The machine executes the following tests.

All segment display

Set time and date

Date : 31st Dec. '94 Time : 23:59

Open drawer
Print check
		Except US		US
Issue a test receipt		1234567890ST#		123456789012ST#

Display test data

1	2	3	4	5	6	7	8

2. Mode selection (Receipt / Journal)

Press "2" key and "SUB TOTAL" key.

Change the mode to "Journal" from "Receipt".

3. Read/Write test for EEPROM (This test is effected at EEPROM version.)

Press "3" key and "SUB TOTAL" key.

Write a test data (1 word ) to test area of EEPROM and read it.

In case an error happens, the machine beep an error sound and issues an error receipt.

- 13 -