Read Sharp ER-A490 (serv.man3) Service Manual online
CHAPTER 1. SERVICE (SRV) MODE
The SRV key is used for operating in the SRV mode.
1. SRV. reset (Program Loop Reset)
Used to return the machine back to its operational state after a lock-
up has occurred.
up has occurred.
Procedure
•
Method 1
1) Turn off the AC switch.
2) Set the mode switch to (SRV
′
) position.
3) Turn on the AC switch.
4) Turn to (SRV) position from (SRV
′
) position.
•
Method 2
1) Set the mode switch to PGM2 position.
2) Turn off the AC switch.
3) While holding down JOURNAL FEED key and RECEIPT FEED
key, turn on the AC switch.
Note: When disassembling and reassembling always power up using
method 1 only. Method 2 will not reset the CKDC6.
Note: SRV programming job#926-B must be set to "4" to allow PGM
program loop reset.
PRG. RESET
***
2. Master reset (All memory clear)
There are two possible methods to perform a master reset.
•
MRS-1
Used to clear all memory contents and return machine back to its
initial settings. return keyboard back to default. for default keyboard
layout.
initial settings. return keyboard back to default. for default keyboard
layout.
Procedure
1) Turn off the AC switch.
2) Set the MODE switch to the (SRV
′
) position.
3) Turn on the AC switch.
4) While holding down JOURNAL FEED key, turn to (SRV) position
from (SRV
′
) position.
•
MRS-2
Used to clear all memory and keyboard contents.
This reset returns all programming back to defaults. The keyboard
must be entered by hand.
This reset is used if an application needs different keyboard layout
other than that supplied by a normal MRS-1.
Used to clear all memory and keyboard contents.
This reset returns all programming back to defaults. The keyboard
must be entered by hand.
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 MODE switch to the (SRV
′
) position.
3) Turn on the AC switch.
4) While holding down JOURNAL FEED key and RECEIPT FEED
key, turn to (SRV) position from (SRV
′
) position.
5) Key position assignment:
*
After the execution of MRS-2, only the RECEIPT FEED and JOUR-
NAL FEED keys can remain effective on key assignment. Any key
can be assigned on any key position on the main keyboard.
NAL FEED keys can remain effective on key assignment. Any key
can be assigned on any key position on the main keyboard.
[key setup procedure]
MASTER RESET
***
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.
Key number
Key name
Key number
Key name
1
Numeric key "0"
9
Numeric key "8"
2
Numeric key "1"
10
Numeric key "9"
3
Numeric key "2"
11
Numeric key "00"
4
Numeric key "3"
13
Decimal point key
5
Numeric key "4"
14
CL key
6
Numeric key "5"
15
⊗
key
7
Numeric key "6"
16
ST key
8
Numeric key "7"
17
TL key
3. Reading of the SRV mode program
List of program reports
JOB#
Report name
900
SRV-mode program full item report (not incl. keyboard
layout)
layout)
950
Keyboard layout report (on keys other than dept. keys
and direct PLU keys)
and direct PLU keys)
951
Keyboard layout report (on dept. keys and direct PLU
keys)
keys)
970
SRV file programming report
MRS-2 executed
Key position set
Free key
Disable
Free key setup
complete.
complete.
*2
*1
0
0
1
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