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JQE SPECIAL SVC 092611
6-1
SECTION 6 - MAINTENANCE
6.1
GENERAL
This section covers maintenance procedures, installation of optional components, calibration
and test measurements of the JQE Special Power Supplies. Conservative rating of components
and the non-congested layout should keep maintenance problems to a minimum. If trouble does
develop however, the easily removed wrap-around cover and the plug-in feature of the circuit
boards provide exceptional accessibility to all components of the supply.
6.2
DISASSEMBLY/REASSEMBLY (REFER TO FIGURE 6-1.)
WARNING
Turn power off and disconnect unit from
power source before disassembling.
6.2.1
COVER REMOVAL
The wrap-around cover may be taken off by loosening and removing its twelve (12) holding
screws, five (5) on each side and two (2) on the front panel.
6.2.2
A1 CIRCUIT BOARD REMOVAL
The A1 printed circuit board is mounted with two (2) screws and two (2) washers as shown in
Figure 6-1, which are removed from the side. Set aside hardware for reassembly. After removal
of the four printed circuit board edge connectors and 4-wire cable from A1J1, the board may be
lifted from its slide-guide.
REASSEMBLY NOTES:
A1 circuit board is floating; be sure to reassemble the hardware as
shown in Figure 6-1.
FIGURE 6-1. A1 PC BOARD, REASSEMBLY