ER-A570 (serv.man7). ERA570 Service Manual - Sharp ECR Service Manual (repair manual). Page 8

For installation of the options, refer to the Installation Manual which is
separately issued from this manual. 

•

External view

Fig. 7-1

•

Purpose: Used for "SIO Test 1 (SIO loop back test)."

•

Installation view:

Fig. 7-2

•

How to use:  Connect the UKOG-6704RCZZ to the body and per-

form the following key operations:

SRV mode: 117 

→

 TL 

•

External view

Fig. 7-3

Purpose 1:  Used for servicing and repairing of options (such as the

ER-A6IN and the ER-A5RS) which are connected with
the main body option connector. 

[Procedure 1] 
Use an insulator base as that in Fig. 7-4 (shaded section) and per-
form servicing.

Fig. 7-4

To check the option I/F PWB from the solder side, connect the I/F
PWB to OPTCN2. To check from the parts side, connect to OPTCN3.

(Note) The option I/F PWB should be held horizontally so that no

excessive stress is applied to connecting section 

Α

 in Fig.

7-4.

[Procedure 2]

Fig. 7-5

As shown in Fig. 7-5, put a string between the pop up and the option
PWB angle and adjust the length of the string so that the CKOG-
6708RCZZ and the option PWB. Then perform servicing. 

Purpose 2: The CKOG-6708RCZZ is equipped with the loop back

connector for checking the ER-A5CB (SIO cable) cable
operations. 

Fig. 7-6

1) Connect the ER-A5CB between an ECR body and the CKOG-

6708RCZZ SIOCN1. (The SIO functions of the ECR must be nor-
mal.)

2) Perform test function "117 (SIO loop back test)" and judge it  nor-

mal or abnormal.

Signal

Pin

GND

1

ER

2

DR

3

RXD

4

TXD

5

CD

6

RR

7

CS

8

R S

9

N.C

ER-A570

Main PWB

Expansion PWB

(CKOG-6708RCZZ)

ER-A5RS/A6IN

PWB

Loop back connectors (2 pcs.):

UKOG-6705RCZZ

Base

Control ROM

A

ER-A610

Main PWB

Expansion PWB

(CKOG-6708RCZZ)

ER-A5RS/A6IN

PWB

Control ROM

Pop up

String

Loop back connectors (2 pcs.):

UKOG-6705RCZZ

Example of use

ER-A570

SIO connector

CKOG-6708RCZZ

SIOCN1

ER-A5CB

 7 