Troubleshooting The Microtymp 2 Handle; Functional Checks Of The Printer/Charger - Welch Allyn MicroTymp 2 Operating Instructions Manual

Portable tympanometric instrument
Table of Contents

Advertisement

Troubleshooting the MicroTymp 2 Handle

Symptom
Handle Does
Not Turn On
Too Much
Artifact on LCD
"Frozen" Display
on LCD
OR
"Checkerboard"
Pattern on LCD

Functional Checks of the Printer/Charger

Pressing the FEED
test pattern to print. See Figure 45 (on page D-54).
1
Test Pattern
2
The test pattern is used to confirm that the print head is functioning
properly. If any of the print head elements are not functioning, a white
line will appear vertically down the printout. A defect in the paper may
also cause white lines or light printing. Repeat the test pattern to confirm
any suspected printing problems. If paper advances but nothing prints
out, check to be sure the paper is inserted properly (see page C-48).
Possible Cause
No battery.
Battery in backwards.
Battery not charged/dead.
Too much movement
during test.
Handle has too much
internal noise.
Microcomputer has
malfunctioned.
and PRINT
buttons simultaneously causes a
D-53
Possible Solution
Put battery in.
Reposition battery
observing polarity.
Charge/replace battery.
If symptom still persists,
return to local Welch Allyn
service location for service.
See page A-31.
Check handle in cavity
(page D-51). If handle
passes cavity test,
artifact is due to
motion. If handle does not
pass cavity test, return
to Welch Allyn service
location for service.
Push TEST and repeat.
If symptom persists, push
all three handle buttons
(TEST,R MEM, L MEM)
simultaneously to reset
microcomputer.
If symptom persists, remove
and reinsert the battery.
If symptom persists, return
to local Welch Allyn service
location for service.
2
3
4

Advertisement

Table of Contents
loading

Table of Contents