1.2 How to service
How to service
Converting mains supply voltage
The unit has separate type nos. for each market, due to country approvals.
The mains voltage is determined by the type nos. of the unit, there are only two
internal mains voltage settings (a jumper) on the SMPS, 100/120V and
230/240V AC (P108, when mounted = 100/120V).
Front line service
The BeoSound 4 unit has been developed for simple module exchange to follow
the on-site service strategy. Module exchange is possible onsite, in the shop or in
the service workshop whatever is most convenient in each case. For on-site service
a back-up suitcase must be used. Module exchange is the recommended way to
perform service, due to the fact that most of the modules are multi-layer based,
and most of the circuits are on a single main PCB. An electrical fault symptom can
be removed during one visit to the customer’s home, if you bring a BeoSound 4
back-up suitcase with you. Is it a mechanical symptom, the particular part must be
brought with you separately.
Service documentation
Service documentation for BeoSound 4 will be a Service manual with part no. for
the back-up suitcase, electrical and mechanical parts, user’s guides etc.
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK
Summary of Contents for BeoSound 4 2851
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