Ac Power Functional Check - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
AC Power Functional Check
The AC Power Module distributes AC power to the DC Power Supply Assembly and to the
Fusing &sembly. If any DC voltages are present in the printer, AC power is dso present and the
following procedures can be omitied.
\
Jumpers
Figure 7-3. Fuse
FI Location
Veri& that AC power is being input to the DC Power Supply Assembly as follows:
1. Power the printer OFF and remove the Main Body Covers.
2. Remove the printer's Front Support Plate. Connect a voltmeter to J502-1 and to J502-3 of the
DC Power Supply Assembly (see Figure 7-3),
3. Power on the printer. If the expected AC line voltage is not present at this point, replace the
AC Power Module or the cable between the two assemblies.
If line voltage is present, verify that Fuse F1 is not open. If Fuse F1 is good, the entire AC voltage
path has been verified. Resume the DC Voltage Functional Check (see the previous page).
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