Repair work at electric and electronic components
8.5 Removing the electric mounting plates from the machine room
DANGER!
Danger of electric shock.
Danger to life.
The unit must be switched off and disconnected from the power supply prior to per-
forming most of the described service tasks.
Take all precautionary measures that a unit which is disconnected from the power
supply will not be inadvertently connected to the power supply.
∅
The unit must be live to perform some of the service tasks.
In this case, a second person must be present who is able to switch off the unit in
case of emergency.
CAUTION!
Danger of functional disorders and damaging the electronic.
Prior to work at the electrical equipment check identity of the components with the aid of the wiring dia-
gram. The order of the electrical equipment may be different from the description in this service manual.
CAUTION!
Danger of damaging the electronics.
Circuit boards may be damaged by handling malpractices and touching of its components.
Prior to work at electronic components the technician must take appropriate protective
measures against electrostatic discharge. Wearing ESD shoes and a grounding brace-
let have shown to be useful.
Before opening the triangle instrument box the technician should at least electrostati-
cally discharge by touching grounded metallic objects.
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Service Manual KBF (E5.2) 04-2015
