Ricoh Aficio IS420 Service Manual page 107

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VIU (VIDEO INTERFACE UNIT)
SWITCHES AND JUMPERS
E.4. SWITCHES AND JUMPERS
There are three switches on the VIU; two are DIP switches and one is a DIC
switch.
E.4.1. DIP Switch 1
Switch Type: 2-bit DIP Switch
Function: Data Transfer Speed Setting
Settings
1
2
off
off
4,800 bps (Default)
off
on
2,400 bps
on
off
9,600 bps
on
on
19,200 bps
E.4.2. DIP Switch 2
Switch Type: 1-bit DIP switch
Function: Normal/Service Mode Selection
Settings
1
off Service Mode
on Normal Mode (Default)
E.4.3. DIC Switch
Switch Type: 8 pairs of jumper pins
Function: 1-4 Cable Type Selection, 5-8 Normal/Service Mode Selection
Settings
Cable Selection
Straight Cable: Short pins 1 and 3 (Default)
Cross Cable: Short pins 2 and 4 pins
Mode Selection
Normal Mode : Short pins 5 and 8 (Default)
Service Mode :Short pins 6 and 7
E-4
October 9th, 1995

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