Phaser 140 Troubleshooting Tree - Tektronix Phaser 140 Instruction Sheet

Phaser 140 Service Supplement

Phaser 140 troubleshooting tree

B
(from page 3)
Note error code
and see table
"Service call error
codes" (page10).
Did
error code
No
provide information
to fix problem?
Yes
End
Power up the printer.
Yes
No
Display
active
?
Replace display
and power up
printer.
Yes
Display
active
?
No
Replace print engine
control board and
change EEPROM
contents.
Yes
Display
active
?
No
Check connectors
and wiring for
damage; replace
if necessary.
Enter Factory
Mode; see
flowchart on
page 4.
Power
cord connected
correctly
?
Yes
AC
power source
correct ?
(120 or 220)
Yes
Power
supply voltages
correct on
CN3?
Yes
Is Va on
control board
TP CPV4 (near IC12)
+12 V ?
Yes
Is
there
Yes
a startup
page ?
No
Is the
Yes
startup page
turned on ?
No
Turn on startup page
using test generator.
Is
there
Yes
a startup
page ?
No
Replace image
processor board
(page 24).
2
A
(from page 3)
No
Connect cord
correctly.
No
Use correct
AC source.
1. Remove power
cord.
2. Remove fuse.
3. Check fuse
No
and continue
with flowchart
on page 3.
Replace
No
control board
and change
EEPROM
contents.