AR-P350, AR-P450 (serv.man51). Flash ROM version upgrade procedure (Revised) - Sharp Copying Equipment Technical Bulletin (repair manual). Page 3

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CONTROL PWB JUMPER SETTINGS FOR TIGER FIRMWARE UPGRADE
P Version
PRN-Control PWB
Function
Jumper switching function
The mark printed on PWB
SET
Default Setting
BOOT program start
DIAG
JP4
ON
OFF
Flash write (Control-PWB)
VCCW
JP2
H/Off
enable
L/On
protect
Flash write (PCU-PWB)
PCU-VCCW
JP6
H/Off
enable
L/On
protect
M Version
MFP-Control PWB
Function
Jumper switching function
The mark printed on PWB
SET
Default setting
BOOT program start
DIAG
JP5
ON
OFF
Flash write (Control-PWB)
VCCW
JP2
H/Off
Enable
L/On
protect
Flash write (PCU-PWB)
PCU-VCCW
JP7
H/Off
Enable
L/On
protect
Flash write (SCAN-PWB)
SCN-VCCW
JP3
H/Off
Enable
L/On
protect
J P 6
J P 2
J P 4
J P 7
J P 5
J P 2
J P 3
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