Sharp AR-M35 / AR-M450 (serv.man7) Handy Guide ▷ View online
Electrical Description
Version 2.0
Issue 01/02
29
SHARP ELECTRONICS (UK) LTD
DOCUMENT SYSTEMS SUPPORT
TECHNICAL SERVICES GROUP
DC Power Supply Voltages
240v AC (Incoming)
Fuse F1
Source Voltage
FW
******
Start-up/Shut-down
Circuit
+24V1
Fuse F2
Main Body
+24V2,
Fuse F3
ADU, Multi-Paper Drawer, Optional DC Power
Relay
+24V3
Fuse F4
Printer Control Section
+5V, and +3.3V ******
Logic Circuit
There is also +12VDC produced on the Mother PWB, which is supplied to the Printer Control PWB, or the Multi-
Function Control PWB. The +12VDC is also monitored on the PCU PWB.
Optional DC Power Supply PWB
240v AC (Incoming)
Fuse F701
Source Voltage
+24VF
Fuse F702
AR-FN7, Desk Unit
+24VD
Fuse F703
AR-FN7, AR-MS1, AR-FN6
+5V
******
Sensors
Electrical Description
Version 2.0
Issue 01/02
30
SHARP ELECTRONICS (UK) LTD
DOCUMENT SYSTEMS SUPPORT
TECHNICAL SERVICES GROUP
High Voltage test
Used to perform the output test from the high voltage PWB. (LCD Display)
•
Pressing [▲] or[▼] key selects the high voltage unit for the test.
•
Pressing the [OK] key can change the selected High voltage value.
•
Using [▲] or[▼] key changes the voltage.
•
Pressing [OK] key starts the high voltage output.
•
DATA (LED) blinks during the processing.
•
After 30 seconds high voltage output is terminated.
•
Pressing [BACK/C] key terminates the high voltage test
XXX:
Initial
Value
MC/GGRID(xx):
Main Charger / Grid bias test
645
35PPM
F : 220
B : 267
THV+(x):
Transfer High Voltage Test
45PPM
F : 267
B : 310
BS(xx):
Developer Bias Test / Volume
485
BS PLUS:
Developer Bias Test (Cleaning Mode)
150
35PPM
F : 120
B : 120
SHV(x):
Separate High Voltage Test
45PPM
F: 160
B : 160
THV-:
Transfer cleaning high voltage test
780
X
XX
F
Cassette / Manual Paper Feed
AE
Auto Exposure Mode
B
ADU Paper Feed
CHR
Text Mode
MIX
Text / Photo Mode
PHT Photo
Mode
PRT Printer
Mode
Measure the voltages at CN 2 on the HVU SU
MC grid
CN2 - 7
Developer bias CN2 - 1
Separation
Separation
CN2 - 3
Transfer
CN2 - 5
It is important that the voltage at CN2 be at the specified figure regardless of the value displayed on the
screen.
HV TEST XXX
Flash Upgrade Procedure
Version 2.0
Issue 01/02
31
SHARP ELECTRONICS (UK) LTD
DOCUMENT SYSTEMS SUPPORT
TECHNICAL SERVICES GROUP
TIGER PARALLEL UPDATE PROCEDURE
1 Set Tiger Control PWB jumpers as indicated on Page 37.
2 1) Turn on main switch.
2) "Boot Program Init. Please Wait"
3) "Version Check Conf : ××××"
4) Press menu key twice.
5) "Firm Update From Parallel"
6) Press OK button.
7) "Firm Update Waiting Data"
8) Drag the .sfu file to fcopy exe. (For the ARM350/450 there is now one firmware file to upgrade all the
firmware flash ROM's)
9) Display changes to "Firm Update Conf Writing Data"
10) Display changes to "Firm Update Result : OK"
11) Press OK button once.
12) Turn off main switch.
3 Reset the Tiger Control PWB jumpers to default settings
Firmware is updated.
CAUTION
:
Don't turn off the main switch until Display changes to "Firm Update Result : OK"
Flash Upgrade Procedure
Version 2.0
Issue 01/02
32
SHARP ELECTRONICS (UK) LTD
DOCUMENT SYSTEMS SUPPORT
TECHNICAL SERVICES GROUP
ARP350/450 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
ARM350/450 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
JP6
JP2
JP3
JP4
JP5
JP4
JP7
JP5
JP2
JP3
JP6
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