Xerox 8830 Service Manual page 246

GP1 HVPS Checkout
The purpose of this checkout procedure is to
verify correct operation of the High Voltage
Power Supply.
NOTE: Use the 26V RTN test point when
measuring all voltages. Failure to use this test
point can cause incorrect readings.
GP1 HVPS Checkout Procedure
Figure 1. Location of HVPS Test Points
Perform the voltage checks shown in Table 1.
Table 1. HVPS Voltage Checks
v-om
COM Standby
Meter
Meter Measured Voltage
Lead Lead
26V RTN 26V 26.5 VDC
PIN 1 Less than 0.05 VDC
26V RTN
GRID V N/A
26V RTN
26V RTN Less than 0.05 VDC
DEW
TFR I Less than 0.05 VDC
26V RTN
DET I
26V RTN Less than 0.05 VAC
1/98
6-10
VIEW: REAR(TOP) PHOTO #0030
In Print Diagnos
Measured Voltage tic Code
26.5 VDC
2.3 ± 0.05 VDC
N/A
-4.20 ± 0.05 VDC
0.6 ±0.1 VDC [921-1]
1.0 VAC [921-1]
8830