Safety Instructions; Potentiometers - Intermec EasyCoder 501 S Installation And Operation Manual

Appendix 3 CPU Board
Safety
Instructions

Potentiometers

118
The CPU board contains a number of potentiometers for controlling
various sensors. It also contains straps and circuits for setting
the type of communication on the standard serial port "uart:",
see Appendix 4.
Before touching the CPU board, carefully read this:
• Check that the power on control lamp at the top/front corner of the
board is off. If not, disconnect the power cord.
• Take precautions to prevent electrostatic discharge
• Only use non-conductive tools. There is low-voltage power
on the CPU board even when the printer is switched off and
disconnected.
The CPU board is fi tted with four potentiometers with the following
functions:
• Display contrast adjustment (see Chapter 13)
• Label stop sensor (LSS) adjustment
• Label taken sensor (LTS) adjustment (not used in this model)
• Ribbon end sensor (R-End) adjustment
Label Stop Sensor
Ribbon End Sensor Strap
(Label Taken Sensor)
LSS LTS R-END
Intermec EasyCoder 501 S – Installation & Operation Ed. 1
Ribbon End Sensor
Power On Indicator
POWER ON
P-604