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Service Information
Satellite headend station STC 1880
Possible complaint:
Complete failure of the headend station. The fuse Si 60002 T1 AL, and partly
the fuse Si 60020 T2,5 AL, are broken.
Cause:
Short circuit in the power supply transistor T 60006 (IRF PC 50).
Remedy:
In addition to replacing the power supply transistor, replace the diode D60006
MUR 480 with a wire bridge. This measure reduces the drain voltage and with
that the danger of a damage by overvoltage.
Workshop:
In the event of a failure of the power supply transistor, carry out the change.
In addition, carry out this change as a preventive measure on all STC 1880
which are in the workshop, without regard of the existing failure.
Stockkeeping:
Transistor IRF PC 50 Part no. 830280505000
Fuse T1 AL
Fuse T2,5 AL
4119100000 (8002/8012, 8005/8015)
Part no. 831561700400
Part no. 831561700600
Returns
analysis
1/1
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