Test Points - Intermec EasyCoder 501 Service Manual

Chapter 17 CPU Board

17.7 Test Points

EPROM
- +
DISP
146
040700.10
FLASH
ADS
NHOLD
VEE
The CPU board is provided with seven test points that can be used
to check various signals or voltages using an oscilloscope or a volt-
age meter.
ADS Address strobe. Controls address latches.
NHOLD Hold request from DMA active low.
VEE Battery voltage. Min. 3.0V at power up. Nominal 3.6V.
/RESET Reset, active low during power up. High at normal operation.
P24 Printhead voltage +24V ±1V during print cycle and cutter operation.
+40V Stepper motor voltage +40V ±2V.
V24 24V ±1V, generates P24 and +40V.
LSS LTS
040700.10
P24
Intermec EasyCoder 501 – Service Manual Ed. 7
R-END POWER ON
V24
+40V