Ricoh PRIPORT VT 2000 Series Service Manual page 225

28 February '91
3.1.1 Preparation for Adjustment
1. Remove the original table cover.
2. Connect the terminals of the oscilloscope to the following test pins on the
A/D Conversion PCB.
VT2100/VT2130/VT2150
Terminal
Channel 1
Channel 2
GND
VT2100/VT2130/VT2150
3. Turn on the power switch while holding down the Print Start key, Stop key
and Clear key on the operation panel. --- LT version only
Turn on the power switch while holding down the Print Start key, Stop
key, Clear key and the Full Master Detecting switch. --- A4 version only
4. Set "15" in the copy counter and set "0" in the memory/class display to
turn on only the fluorescent lamp.
Test Pin
TP 600
TP 603
TP 602
VT2300/VT2500
VT2300/VT2500
Terminal
Channel 1
Channel 2
(Black Level
Standard Voltage)
GND
* The trigger terminal is TP 603
5-12
Test Pin
TP 601
TP 600
TP 604
.