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DIAGNOSTIC 

6-1 

CHAPTER 6. DIAGNOSTIC 

 

1. DIAGNOSTIC MODE 

 

NO.      CONTENTS 

 

1 

KEY  

2 

SENSOR  

3 

SD CARD ID READ 

 

4 

SUB LCD&BUZZER 

 

5 

MAIN LCD   

 

6 

A/D  

7 

CLOCK  

8 

DRAWER  

 

9 

RS232C  

10 

PRINTER  

11 

ROM  

12 

RAM  

 

 

 

 
 

 



  Differences for each model and destinations 



 

Common specifications for all models 



 RS232C: 

[4port] 



  Scanner: [Possible to connect with recommended item] 



  Battery for memory back up: [Rechargeable battery] 



  Printer: [2pcs (the auto-cutter is attached on receipt 

printer] 



  Main LCD Display: [24charactors x 8lines] (LCD pixels: 

192×80) 



  Sub LCD Display: [20charactors x 1line, 7segments LED 

x 1line] (LCD pixels: 160×16) 



 

ER-A411V (for Europe)   



  Key-board: [Normal type] 



  Drawer open sensor: attached (for V6 model: None) 



 ER-A421V 

(For 

Europe) 



 Key-board：[Flat type] 



  Drawer open sensor: attached (for V6 model: None) 

 

2. 

ENTERING TO SERVICE DIAG MODE

 

 

1)  Push the [MODE] key. 
2)  Entering to the service diagnostic mode. 

Input 99999999 → [TL/NS] 
 

3)  Select the DIAGNOSTIC PROGRAM 
4)  Input the PASSWORD. 
 

 

 
 
 

 

 

After entered the PASSWORD: “907.”, initial of DIAGNOSTIC 
menu is aroused. 
The “*”is displayed on the main display when input a key. 
In case of inputted PASSWORD is incorrect, return to the SRV 
mode. 

5) DIAG 

menu 

 

 

Select the “SERVICE” diagnostic mode from the displayed 
menu. 
The item is selected by [↑] or [↓] key (the selected item is 
highlighted), and then executed when pushed [TL/NS] key. 

 

 

 

 

 

 

 

 
 

 
 
 
 
 
 

 
 

 
 
 

 

PASSWORD? ____       
 
                                         
 

 

DIAG MENU            

SERVICE

 

                                         
 

 

 

 
 

DIAGNOSTIC 

6-2 

 

 

SERVICE DIAG MODE

 
The following menu is displayed on main display when select 
“SERVICE” from DIAG MENU. 
 
 
 
 
 
 
 
 
 
In the displayed menu, the item is selected by [↑] or [↓] key 
(the selected item is highlighted), and then executed when 
pushed [TL/NS] key. 

 

Push the keys except [Paper feed] and [TL/NS] key, lastly 
push the [TL/NS] key. 
During above process, pushed key-code SUM is accumulated 
in the machine and then compared with original check sum 
that set in the memory after pushed the [TL/NS] key.   
Push [CL] key 3 times, it is possible to restart the process from 
the beginning. 
After complete the displayed result and its printing, return to 
SERVICE DIAG MENU when push the [TL/NS] key again.   

<TEST results>   

KEY (Type of keyboard): NORMAL or FLAT (fixed by machine 
type) 
KEY CODE:   
S1 (SUM1): accumulation pushed key checksum. 
S2 (SUM2): original set checksum. 
OK or NG: Test result 
 
  In case of flat keyboard / result is OK 

<LCD MAIN DISPLAY> 

 
 
 
 
 

<Result print> 

 

 

 

 

   

 
 
  In case of normal keyboard / result is NG 

<LCD MAIN DISPLAY> 

 
 
 
 
 

<Result print> 

 

 

 

 

   

 
 
 
NOTE: CHECK SUM   
                            ER-A411V                      16D5 
              ER-A421V           3837 
 

To display and print the sensor condition in printer. 

The condition of each sensors on printer are monitoring and 
displayed its results every 1 sec. 

 
<TEST results> 

PPR1: Paper exiting condition on Printer-1 (Receipt side)   

(YES: Paper exiting, NO: No-paper) 

PPR2: Paper exiting condition on Printer-2 (Journal side) 

(YES: Paper exiting, NO: No-paper) 

RCPTSESNS: open/close condition of platen-arm of printer 
which attached the auto-cutter.   

  In case of Printer-1 and Printer-2: No-paper, Platen-arm is 
opening 

<LCD MAIN DISPLAY> 

 
 
 
 
       

<Result print>

 
 
 
 
 
 
  In case of Printer-1 and Printer-2: No-paper, Platen-arm is 
opening) 

<LCD MAIN Display> 

 
 
 
 
 
 

<TEST result print>

   

 

 

 

KEY NORMAL 
KEY CODE:XXX    
S1:XXXX  S2=YYYY 
NG 

SENSOR           
PPR1:NO 
PPR2:NO               
RCPTSENS:OPEN 

SERVICE DIAG 

KEY

         SENSOR

 

MAINLCD     SD CARD 
SUBLCD&BZ   DRAWER 
A/D         RS232C 
ROM         PRINTER 
RAM         EXIT 
CLOCK       

KEY XXXX-YYYY – NG 

SENSOR       
PAPER1   NO 
PAPER2   NO 
RCPTSENS OPEN 

SENSOR           
PPR1:YES 
PPR2:YES             
RCPTSENS:CLOSE 

SENSOR       
PAPER1   YES 
PAPER2   YES 
RCPTSENS CLOSE 

KEY FLAT 
KEY CODE:XXX    
S1:YYYY  S2=YYYY 
OK 

KEY XXXX-YYYY – OK 

 

 
 

DIAGNOSTIC 

6-3 

 

 

To display and print the SD card detection and write-protect 
condition. 
Simultaneously, the value of SD card register CID is 
displayed. 
Test finish when pushed [TL/NS]  KEY. 
 
<TEST RESULT> 
CD：SD card detection 
WP：WRITE PROTECT condition 
CID: SD card ID 

 



 In case of SD card is installed, Write-protection is ON.   

<LCD  MAIN Display>   

 
 
 
 
 

<Result print> 

 
 
 

 
 
 

 
 



 In case of SD card is installed, Write-protection is 

OFF.  

<LCD MAIN Display> (CD: YES, WP: NO) 

 
 
 
 
 
 

 <Result print> 

 
 
 
 
 
 
 
 
 

To execute the Sub LCD DISPLAY and buzzer test. 
 

<LCD MAIN DISPLAY> 

 
 
 
 
 
 
 

<SUB LCD DISPLAY> 

   

The following test displays are repeated. 

           

 

The display patturn is changed to next one with buzzer short 
sound(250msec) when pushed [TL/NS] KEY. 
Lastly, all segements are turned on, with buzzer sound until 
pushed a key. 
In case of normal result, push the [TL/NS] KEY. The test 
mode is finished    with OK status, 
In case of there is a error in display or sound, push a key 
except [TL/NS] KEY. The test mode is finish with NG status. 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

SUB LCD&BUZZ 
 
                  

           

SD CARD                
CD: YES   , WP: NO 
CID:XXXXXXXXXXXXXXXX 

XXXXXXXXXXXXXXXX

SD CARD 
CD:YES ,WP:NO 
CID:XXXXXXXXXXXXXXXX 
    XXXXXXXXXXXXXXXX 

[TL (CA/AT/NS)] KEY

[TL (CA/AT/NS)] KEY 

x 6times

SD CARD              
CD: YES   , WP: YES 
CID:XXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXX

SD CARD 
CD:YES ,WP:YES 
CID:XXXXXXXXXXXXXXXX 
   XXXXXXXXXXXXXXXX 

 

 

 

 

 

 
 

DIAGNOSTIC 

6-4 

 

 

In case of results is OK 

 <Result 

print> 

         

 

 

 

 

 

In case of results is NG 

 <Result 

print> 

         

 

 

 
 

 

The following patterns are displayed on main LCD display. 
The pattern is change to next one when push a KEY. 
Check the results and then;

 

Pushed [TL/NS] key: the test is finished as OK status. 
Pushed other than [TL/NS] key: the test is finished as NG 

status. 

 

<Display pattern> 
1. All 

white 

 
 
 
 
 
 
 
 
 
2. 

Outside line (1dot) BOX display 

 
 
 
 
 
 
 
 
 
 
3. All 

black 

 
 
 
 
 
 
                 
 
 
 

4. H-display 

 
 
 
 
 
 
 
 
 

5. 

Highlighted H display 

 
 
 
 
 
 
 
 

 

 

6. 

Lattice pattern display 

                   

 
 
 
 
 
 
 
 
 

7. 

Lattice pattern 1 display 

 
 

8. 

Lattice pattern 2 display (Reversal for pattern 7 above) 

 
 
 
 
 
 
 
 
 

HHHHHHHHHHHHHHHHHHH 
HHHHHHHHHHHHHHHHHHH 
HHHHHHHHHHHHHHHHHHH 
HHHHHHHHHHHHHHHHHHH 
HHHHHHHHHHHHHHHHHHH 
HHHHHHHHHHHHHHHHHHH 
HHHHHHHHHHHHHHHHHHH 

SUB  LCD      NG

 

   
 
 
 
 
 
 

 
 
 
 
 
 

 

 
 
 

 

 
 

HHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHH

SUB  LCD      OK