For setting in PGM1 or PGM2 mode, refer to the Operation Manual.
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
This document has been published to be used
SHARP CORPORATION
for after sales service only.
The contents are subject to change without notice.
The following major keys are used in the SRV mode.
FUNCTIONKEYDESRIPTION
CURSOR UP
CURSOR DOWN
CURSOR RIGHT
CURSOR LEFT
PAGE UPPAGE UPMoves page up (1 page)
PAGE DOWNPAGE DOWNMoves page up (1 page)
CLEARCLClear numeric entry or error message
CANCELCANCELOperation cancel & back to previouse menu.
ENTERENTERData entry
BACK SPACEBSBack space
MODE MENUMODEBack to mode selection menu
ALL ENTERCA / ATAll entry completion.
TOGGLE SELECT"." (DECIMAL POINT)Toggles between selections
INSERT/OVER WRITEINSChange character entry mode.
RECALLRECALLRe-call item programming
DELETEDELDelete item
Moves cursor up (1 character)
Moves cursor down (1 character)
Moves cursor right (1 character) & Open sub menu (PGM only)
Moves cursor left (1 character) & Open sub menu (PGM only)
CHAPTER1. SRV RESET (Program Loop Reset) and switch to SRV mode
In the ER-A770, the following reset switch (location No.: SW1) is used
to switch to the service (SRV) mode and to reset.
Reset
switch
SRV. reset
Used to return the machine back to its operation state after a lock up
has occurred.
PROCEDURE
1) Turn off the AC switch.
2) Set the reset switch to "ON" position
3) Turn on the AC switch. (Wait one second)
4) Turn to "OFF" the reset switch.
5) The SRV mode is displayed as shown below.
DISPLAY:
RESET SW
ONOFF
SW1
RESET SW
ONOFF
Rear side :"ON" position(Reset state)
Used to reset and resume initial program without clearing memory.
Front side :"OFF" position(Run state)
CHAPTER 2. MASTER RESET (All Memory Clear)
There are three possible methods to perform a master reset.
MRS-1 (Master resetting 1)
Used to clear all memory contents and return machine back to its
initial setting s .
The keyboard is set to the keyboard default keyboard layout.
PROCEDURE
1) Turn off the AC switch.
2) Set the reset switch to "ON" position
3) Turn on the AC switch. (Wait one second)
4) While holding down the MRS-1 key, place the reset switch to
"OFF".
MRS-1 key: The key located on Left upper corner of the key-
board.
MRS-1 Key
6) The master reset is started.
DISPLAY:
MASTER RESET
MASTER RESET
7) After completion of the master reset, the buzzer sounds three
times and the following SRV mode display is shown.
DISPLAY:
Keyboard layout
5) Enter the password key operation
DISPLAY:
ENTER PASSWOPRD
Press the four corners of the keyboard in
the sequence of a, b, c, and d.
MRS-2 (Master resetting 2)
Used to clear all memory and keyboard contents. This reset returns
all programming back to defaults.
The keyboard must be entered from. This reset is used if an application needs different keyboard layout other than that supplied by a
normal MRS-1.
PROCEDURE
1) Turn off the AC switch.
2) Set the reset switch to the "ON" position
3) Turn on the AC switch. (Wait five seconds)
4) While holding down the MRS-2 key, place the reset switch to
"OFF" .
MRS-2 key: The key located at the upper right corner of the
keyboard.
MRS-2 Key
ac
Keyboard layout
db
Keyboard layout
5) Enter the password key operation
DISPLAY:
ENTER PASSWOPRD
Press the four corners of the keyboard in
the sequence of a, b, c, and d.
ac
db
Keyboard layout
6) Set the function keys in the table below. (Start from the zero "0"
key, The keys are displayed sequentially.)
DISPLAY:
ENTER 0 KEY
[Key setup procedure]
MRS-2
executed
NOTES:
1: When the 0 key is pressed, the key of the key number on
display is disabled.
2: Push the key on the position to be assigned. With this, the
key of the key number on display is assigned to that key
position.
3: When relocating the keyboard, the PGM 1/2 mode uses