1-21
HDW-750/750CE V1
1-10. On-Board Switch/Slit Land Description
For the function of the on-board switches on the APR-59 board, KY-475 board and SW-1030/1031/1038
board, refer to the Operation Manual.
m
.
Never change the settings of the switches that are specified as “Factory-use”.
.
The number in parenthesis ( ) indicates the address on the circuit board.
1-10-1. AT-143 Board
Ref. No. Address
Name
Description
Factory setting
S1-1
(C-5/B side)
SERVICE mode
Selects to display or not to display the SERVICE
OFF
menu.
ON : To display the SERVICE menu
OFF : Not to display the SERVICE menu
S1-2 to 7 (C-5/B side)
_
Factory-use
OFF
S1-8
(C-5/B side)
NV-RAM reset
ON : NV-RAM reset
OFF
OFF : Normal operation
When the main power of the unit is turned on
while the switch S1-8 is being set in ON, NV-RAM
(IC51)/DCP-28 board is reset.
Upon completion of resetting, be sure to return the
switch S1-8 to OFF.
m
.
Resetting the NV-RAM erases adjusted value
of the SERVICE menu and all of the users’
unique values (such as the MENU settings and
the AUTOWHITE/BLACK data).
.
Upon completion of resetting the NV-RAM,
be sure to perform the automatic black balance
adjustment using the AUTO W/B BAL switch
(on the front block).
When the AUTO W/B BAL switch is kept pressed
in the BLK position, the display changes as follows.
[BLACK SET]
→
[BLACK BAL]
→
[BLACK SET].
Keep pressing the switch until the second [BLACK SET]
is displayed.
.
After resetting, return the switch S1-8 to OFF.
If not, the adjustment data is not saved in the
NV-RAM hereafter.
C
B
A
1
2
3
4
5
S3
S2
S1
AT-143 board (B side)
1-10. On-Board Switch/Slit Land Description
