Figure 6-1 Measuring The Dc Voltages (Test Points) And Fuses - Tektronix Phaser 360 Service Manual

6
Troubleshooting
6-8 Phaser 360 Color Printer
If the +5 VDC, ±12 VDC, ±40 VDC and +54 VDC voltages measure correctly
proceed to the next topic.
–52V
+54V
+40V
!
–12V
+12V
+5V
Hazardous voltages are present on circuit
board under this cover at all times unless
power cord is disconnected.
Heater circuitry may be energized when
power switch is on or off. Disconnect power
cord before servicing.
Many hot surfaces throughout the product.
POWER OFF
RES 4
SENSE
RES 3
DRUM
RES 1
HEAD L
PAPER
BLACK
CYAN
MAG
YEL
WIPE
HEAD R
RES 2
DRUM 2
RES #3
HEAD R
NEUTRAL
HEAD L
RES 2
RES 1
BK
BK
RES 4 MG
RES 4 MG
CYN
CYN
YEL
J2 AC J3 AC
J2 AC
J3 AC

Figure 6-1 Measuring the DC voltages (test points) and fuses

DANGER
Lethal Voltages
FUSE I
CAUTION
FUSE 3
FUSE 2
DRUM
WIPE
PAPER
DRUM 2
YEL
LINE
9923-30