Printronix p300 Maintenance Manual page 140

FROM SHEET 5
E
Replace hammer
driver PCBA per para
5–45.
Print out and check for
sympton.
Symptom
present
?
YES
Install original
hammer driver PCBA
per para 5–45.
Replace shuttle per
para 5–24.
Print out and check
for symptoms.
Symptom
present
?
YES
Refer to schematics
and troubleshoot
using standard
techniques. If problem
remains, contact
authorized distributor
service
representative.
4–34
NO
Return to
Normal operation
NO
Return to
Normal operation
Figure 4–14. Missing Dots (6 of 6)
P300/P600 Troubleshooting