Installation
ProTelevision Technologies
PT 5780 DVB-T Modulator
Instruction Manual
Revision 3.11
3-4
3.6.3
Mute
The modulator output can be forced to the muted state by establishing a connection between pin 7 and 8 of
the Alarm connector (see paragraph 3.6.2 above).
3.6.4
Reset
The modulator can be reset by briefly establishing a connection between pin 7 and 9 of the Alarm connector
(see paragraph 3.6.2 above).
3.7
Access to and Replacement of Parts
3.7.1
Safety
Warranty will be void if any person without specific authorisation from ProTelevision
Technologies opens the modulator chassis.
The opening of covers or removal of parts, except those to which access can be gained by
hand, is liable to expose live parts.
The instrument must be disconnected from all voltage sources before performing any
adjustment, replacement, maintenance, or repair, which requires the instrument to be opened. If
repair of the opened instrument is unavoidable, it must only be carried out by a skilled person,
who is aware of the hazards involved. To guarantee safety only original spare parts must be
used.
3.7.2
Access to the Units
Warranty will be void if any person without specific authorisation from ProTelevision
Technologies opens the modulator chassis.
To gain access to the units, remove the screws that secure the top cover of the instrument and
lift the cover up.
Summary of Contents for PT 5780
Page 94: ......