HP 3500 Series - Page 292

278 Removal and replacement ENWW
10 Disconnect the remaining cable connectors from the PCB (19 connectors for the HP 3500 and
20 for the HP 3700) and remove the cables from three cable clamps (1).
11 Remove four screws (2) and remove the DC controller PCB/plate (3) from the printer. While
removing the controller PCB/plate, remove the cables from the remaining harness clamps.
Figure 6-124 High-voltage power supply PCB removal (4 of 5)
12 Remove three screws (1), unhook eight claws (2) (working from the top down), pull out on the
bottom sides of the PCB to release two pins (3), and then lift up to release it from the lower
support (4). Once the PCB is released from the printer, disconnect the connector (5) as you
pull the PCB away from the printer.
Reassembly note: When reinstalling the high-voltage power supply PCB, connect the
connector (5) first. Next, install the bottom of the PCB into the bottom support (4), then
align the board onto the two lower pins (3), and working upward, hook the claws (2) on
each side of the board. Ensure that the board is aligned so it fits on the upper alignment
pin (6).
Figure 6-125 High-voltage power supply PCB removal (5 of 5)
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