Disasse Mbly And Reassembly; General; Disassembly; Coverplate Removal - Vivitar 283 Service Manual

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3.1
SECTION 3
DISASSEMBLY AND REASSEMBLY
GENERAL
Automatic Electronic Flash
Model 283
This section contains procedures for disassembly, cleaning, electronic and mechanical component removal,
and reassembly of the Vivitar Model 283 Automatic Electronic Flash. Disassemble the unit only to the ex-
tent necessary for operational checkout, troubleshooting, and repair. Complete exploded view, PC layout
wiring diagram, and schematic are provided in Section 5, Figures 5-1 through 5-7.
3.2 DISASSEMBLY
A. Remove battery cover completely by sliding open and pressing past retaining stop. With flash head
tilted to "O", remove alkaline cartridge battery from compartment. Unplug sensor assembly and
lay aside. Take off coverplate by heating slightly with soldering iron and lifting off with thin blade.
Pry off attaching plate with small screwdriver and lay aside. Figure 3-1.
Battery
'· · · · · / C a r tridge
-
Figure 3-1. Coverplate Removal
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B. Turn reflector case straight up (90 position), remove screws and lift off reflector case UB. Figure 3.2.
WARNING
Do not touch exposed PC board and associated compo-
nents until you have discharged main capacitor C1 and
Capacitor C11. (See Discharge Procedure Page 9, step F.)
Vivitar 37460598 (11/80)
7