Schiller AT-102, Service Handbook

Page: 82 / 140

4.4
AT-102 Service Handbook
Safety Notices
WARNINGS
Before commencing any removal or replacement procedures ensure that the mains
power supply is switched off and that the mains cable is removed.
Certain checks and adjustments can only be carried out with the top assembly
removed and with mains connected. When carrying out these procedures beware
that potentially lethal voltages are present.
CAUTIONS
The AT-102 contains static sensitive CMOS components; observe antistatic precau-
tions:
When carrying out any maintenance procedures always place the unit on an earthed
antistatic mat.
Personnel must be earthed when handling any boards or components
Always use an antistatic bag when transporting boards or components
The unit is susceptible to abrasion damage. To prevent scratching, always place the
unit on a soft, non-abrasive cloth when carrying out maintenance procedures.
Take care not to place any strain on the connecting ribbon cable when removing the
top assembly. Ensure that the cable assembly is not crimped or twisted and that
the top assembly is not placed on the cable assembly.
Care must be taken when removing and replacing connectors. Never use force.
Never strain the cable assemblies.
The procedural steps given for each module must be followed in the order given.