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RAM data can be transmitted in the following two methods. 
Save the data before servicing as follows:

1

ECR     ECR

•

Cable: ER-A5CB

Fig. 1-1

2

ECR     ER-02FD

•

Cable: Cable (QCNW-7578RCZZ) packed with the ER-02FD 

Fig. 1-2

1) Operation:

Simplex

2) Line configuration:

Direct connect

3) 

Data 

rate:

19200, 9600, 4800, 2400, 1200, 600,
300BPS (Selected by SRV JOB#903-A)

4) Sync mode:

Asynchronous

5) Checking:

Vertical parity (odd)

6) Code:

7 bits (ASCII)

7) Bit sequence:

LSB first

8) Line level:

TTL level

9) Data forma:

FIg. 2-1

1

ER-A5CB

Fig. 3-1

Fig. 3-2

2

QCNW-7578RCZZ

Fig. 3-3

Fig. 3-4

Interfacing signals

Pin
No.

Signal
name

In/Out

On level

Description

1

GND

—

—

Signal ground

2

ER

Out

Low

Equipment ready

3

DR

In

Low

Data set ready

4

RXD

In

High: MARK
Low: SPACE

Receive data

5

TXD

Out

High: MARK
Low: SPACE

Transmit data

6

CD

In

Low

Carrier detect

7

RR

Out

Low

Ready to receive

8

CS

In

Low

Clear to send

9

RS

Out

Low

Request to send

The following service (SRV) modes are available for the serial data
transfer of the ER-A610.

1) Data transmit (Source side)

X: 0=SSP DATA

1 = Standard RAM+01RA/02RA
2 = 01MB (0.5MB)/02MB (0.5MB:1st half)
3 = 02MB (0.5MB: 2nd half)

2) Data receive (Target)

1500mm

TCP8913

P

b1

b2

b3

b4

b5

b6

b7

LSB

MSB

Start bit

Parity

bit

Stop

bit

996

X

TL

All data

X

ECR

ECR

ER-A5CB

ECR

ER-02FD

QCNW-7578RCZZ

998

TL

X

1500mm

TCP8913

TCP8913

GND

Signal name

Pin No.

1

ER

2

DR

3

RXD

4

TXD

5

CD

6

RR

7

CS

8

RS

9

GND

Signal name Pin No.

1

ER

3

4

RXD

5

6

CD

RR

8

CS

RS

TXD

9

DR

7

2

GND

Signal name

Pin No.

1

ER

2

DR

3

RXD

4

TXD

5

CD

6

RR

7

CS

8

RS

9

GND

Signal name Pin No.

1

ER

3

4

RXD

5

6

CD

RR

8

CS

RS

10

TXD

9

DR

7

NC

2

NC

 44 

A single byte image of the RAM data to be transmitted is divided into
a high order 4 bits and low order 4 bits and converted into ASCII
code. Then, the image of the memory is sent in the following format:

1

Memory top address: 0000H 

∼

 FFFFH

Top address of the memory to be transmitted in ASCII number.

2

Page:1D 

∼

 1F

Page of the memory to be transmitted in ASCII number.

3

Sum check

4

End code:
Hex 0D

NOTE:

•

In order that contents of RAM memory may not over-ride pages for
this job, RAM image is sent in unit of 64 bytes from the address
0000. In other words, 128 bytes are sent at one time on the trans-
mit data format.

RAM DATA FORMAT

Exhibit:

Code table

HEX

ASCII

Character

0

30

0

1

31

1

2

32

2

3

33

3

4

34

4

5

35

5

6

36

6

7

37

7

8

38

8

9

39

9

A

41

A

B

42

B

C

43

C

D

44

D

E

45

E

F

46

F

1

End message:
Fixed to 30303030.

2

End massage:
Fixed to 4646.

3

Sum check

4

End code:
CR (0D)

1) To prepare an ER-A610 to receive data from another ER-A610 or

the ER-02FD, the memory size of the receiving unit must the
same as or greater than the sending unit.

2) Master reset the receiving ER-A610.

3) Match the baud rate of the transmitter with the receiver using

JOB#995 in the SRV mode.

4) Connect loader cable (QCNW-7578RCZZ or ER-A5CB) between

ER-A610s.

5) Set the receiving ER-A610 ready to receive.

6) Start the sending ER-A650.

X: 0 = SSP

1 = Standard RAM+01RA/02RA
2 = 01MB (0.5MB)/02MB (0.5MB:1st half)
3 = 02MB (0.5MB: 2nd half)

7) Transmission status.

Description of error status
  1:  Application error (Command error)
  2:  Line error (DTR OFF)
 3: Application error (Parity error)
  4:  Application error (Check sum error)
  5:  Application error (Data size error)
 6: Hard ware error
 7: Power off error
10: Time out error
11:  Application error (Transmit data size error)
12:  Application error (Block sequence error)
13: Memory full error

8) Service reset the receiving ER-A610.

1

2

3

4

Data (128bytes)

BD

7E

83

FC

03

B6

42 44 37 45 38 33 46 43 30 33 42 36

30

3

4

30

30

30

1

2

TL

998

X

996

X

All data

TL

X

 45 

1) Turn off the power switch of the ER-02FD, and set the DIP

switches of the FD unit as follows:

DS-1

DS-2

1

2

3

4

5

6

7

8

1

2

3

4

OFF ON OFF ON

ON OFF OFF OFF

X

OFF OFF OFF

Data rate

4

6

Rate [bps]

OFF

OFF

19200

ON

OFF

 9600

OFF

ON

 4800

ON

ON

 2400

Disk format
CCP/M: OFF
PC-DOS: ON

2) Connect the QCNW–7578RCZZ cable.

1) Turn on the power switch and insert a floppy disk which has been

formatted.

2) Start the SEND JOB on the ECR side as follows:

X: 0 = SSP

1 = Standard RAM+01RA/02RA
2 = 01MB (0.5MB)/02MB (0.5MB:1st half)
3 = 02MB (0.5MB: 2nd half)

3) Data transmission is started and the green lamp on the ER-02FD

blinks.

1) Turn on the power switch and insert the floppy disk which stores

the data.

2) Start the RECEIVE JOB on the ECR side as follows:

3) Press the  SEND  key on the FD unit.

4) Data transmission is started and the Green lamp on the ER-02FD

blinks.

5) Service reset the ECR.

1) When the RAM option (ER-02RA) is to be installed to the main

PWB, be sure that the ER-02RA is facing in the right direction.

In the ER-A610, the motor will automatically turn off when a prema-
ture halting of the timing signals occurs due to a paper misfeed,
ribbon jam, intrusion of alien object, etc. When the motor stops, an
intermittent beeping will occur, with no indication in the display.

1) Disconnect the AC cord from the wall outlet. And remove the

cause.

2) When power is restored, the following is displayed.

 PRINTER ERROR 

Fig. 2-1

3) Depress the [CL] key to return the ER-A650 to the point where the

cause happened. The power failure symbols will be printed after a
line feed.

4) Print sample

Fig. 2-2

When installing the upper cabinet again, be sure to connect the GND
wire (QCNW-7120RCZZ) to the proper connector in front of the
printer.

TL

998

X











996

X

All data

TL

X

 46 

1) If D1 shorts, the VRAM is shorted with the 5V supply.

In this event, normal operation is usually possible, except that it
may not recharge the battery, failing to back it up, resulting in
memory frustration.

Fig. 4-1

2) When installing the option I/F PWB, be sure to connect it to the

left side (under the power PWB) when viewed from the rear of the
body. Do not use the right side (under the printer). 

3) When fuse F1 above the main PWB is blown off, be sure to check

the zenor diode ZD2 (VHERD5.6FP3-1) and the thyristor Q2
(VHSDRA2TE//–1) for any damage as well as replace F1. If the
diode is damaged, replace it with new one. 

4) When removing or installing the option slot rear cover, be sure to

lift up the pop-up display. Especially when installing the cover, be
sure not to pinch the pop-up display cable between the upper
cabinet and the cover. 

When the printer unit or the power PWB is replaced, the following
adjustments should be performed.

1) Tools required for adjustment

1

A synchroscope or a universal counter

2

A digital voltmeter

2) Adjustment procedure

1

Remove fuse F2 from the main PWB.

2

Connect the probe of the synchroscope or the digital voltmeter
with 1 pin and GND of Q11 (KTD1414) on the main PWB.

3

Connect the digital voltmeter pin with fuse F2 and GND of the
main PWB.

4

Perform the master reset.

5

Turn VR1 on the PS PWB to adjust the voltage to 26.4V (Ap-
prox. 2.7 lines/sec).

∗

Adjust VP so that it is in the range of 24V to 26.4V.

6

Perform the printing procedure. (Printing is not performed be-
cause the fuse is removed.)

7

Measure the time of TW with the waveform of Q11 1 pin as
shown in the figure below.

8

TW 

σ   

357 ms: 

The adjustment is completed.

TW < 357 ms:

Adjust VR1 on the PS PWB so that TW may
be 357 ms 

±

5 ms.

9

Turn off the power and disconnect the probe.

Φ

Attach the fuse to the original position.

GND

Synchroscope

Didital voltmeter

F2

Q11

B

Battery

R145
390

Ω

VRAM

D22

1SS353

+5V

TL

950

X

TW

Q11
1 pin waveform

About 1.2V

 47 