Printronix p300 Maintenance Manual page 117

FROM SHEET 1
A
Paper out
indicator on
?
YES
Replace P/S PCBA
per para 5–41.
Press CHECK switch.
Observe display.
Error
indication still on
?
YES
Refer to schematics
and troubleshoot
using standard
techniques. If problem
remains, contact
authorized distributor
service
representative.
Figure 4–4. CHECK Indicator Stays On (2 of 2)
P300/P600 Troubleshooting
NO
NO
YES
Return to
Normal operation
Replace logic A
PCBA per para 5–44.
Check P/S PCBA
fault indicators.
NO
Paper out
indicator on
?
YES
Install original logic A
PCBA per para 5–44.
Replace logic B PCBA
per para 5–44.
Check P/S PCBA
fault indicators.
NO
Paper out
indicator on
?
Refer to schematics
and troubleshoot
using standard
techniques. If problem
remains, contact
authorized distributor
service
representative.
4–11