Repair Preparations; Bleed The Main Capacitor; Operations With Top Cover Removed - Canon EOS 55 Service Manual

Part 3: Repair Information
1. REPAIR PREPARATIONS
IMPORTANT! READ THIS BEFORE STARTING REPAIR
1.1
BLEED THE MAIN CAPACITOR!
As
soon as the top cover is removed, drain the main flash capacitor with a bleeder
capacitor of around 500Q and at least lOW. The points are on the flash connecting flex
at the trigger ground lead pad (blue) and the flash tube XE+ lead (red) pad, as shown
below.
,¢.' v, ... ~.
:·'L: .. ~·:.: ,.
Fig. 3-1 Main Capacitor Bleed Points
1.2
OPERATION WITH TOP COVER REMOVED
1. Camera Operation
(Xe+)
If the top cover has been removed and leads and connectors between the cover and
main flex disconnected, the camera
will
not operate. To operate the camera without
the top cover in place, you should construct the "Command Dial Tool" following the
instructions on page 3-7.
2. Shutter Release
To prevent possible harm to the switch, use the accessory "Release Switch RS-60E3
to release the shutter when the top cover is off.
3-1