Dc Power Supply Fuse; Dc Power Supply Assembly; Supply Assembly - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
DC POWER SUPPLY ASSEMBLY
The DC Power Supply Assembly contains the Main Motor driver circuitry as well as the DC Power
Supply fuse. The Paper Control PCA atiches to it.
DC Power Supply Fuse
1. Remove the Main Body Covers and Front Support Plate.
2. Remove the DC Power Supply Fuse (located in the lower left front corner of the DC Power
Supply Assembly (see Figure 6-19). Be sure to replace this fuse with one of the proper value.
DC Power Supply Assembly
caution
Since' the Paper Sensing Arm mn be easily damaged, take me when removing the
#
DC Power Supply. Also remove the Fiber Optic Cable from its retaining clip to
,'. ,
prevent damage to the cable. Remove the Main Motor connector as well.
~.~.
1. Remove the Main Body Covers and Front Support Plate.
2. Remove the screws (3) securing the DC Power Supply Assembly, disconnect the Main Motor
connector, and remove the Fiber Optic Cable from its retaining clip.
3. Lift the assembly straight up and out, taking mre not to damage"the Paper Sensing Arm. This
may require a firm lifting action combined Wth a front-to-back rotting action bemuse of the
three large pin connectors which secure the assembly to the base plate.
4. Remove screws (6) to separate the DC Power Supply Assembly from the Paper Control PCA.
Use caution when replacing the assembly to ensure the connectors are properly aligned before
securing it to the base plate. Be sure to instil the mounting screw with star washer at its proper
location at the rear of the assembly (see FiWre 6-19).
P
>
Figure 6-29. DC
Power
Supply Assembly
6-24