Philips PM 5509 Bedienungsanleitung Seite 17

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2. Directions for use
2.1. INSTALLATION
2.1.1,
2.1.3.
2.1.4.
2.1.5.
Safety regulations
Before operating the instrument, please check that no transport damage has occured.
In any case do not open the instrument before it has been disconnected from the mains. The mains cord with
earth connection is an integral part of the safety precautions in the instrument.
Therefore the earth connection should not be made inoperative.
. Controls and sockets
(See Figs. 1 and 2)
Adapting the PM 5509 to other PAL-television systems
The generator PM 5509 is adaptable to other PAL-television systems as indicated in table | by dots. For this
purpose special solder joints have been provided on the printed circuit boards unit 1, 2 and 3 as well as a
switch on unit 1.
The solder joints are accessible as follows:
— onunit 1 after removal of the bottom cover
— on unit 2 after removal of the top cover
— on unit 3 after removal of the left side cover
This left side cover can only be removed after the carrying handle has been taken off.
The slide switch is located at the left side of unit 1 (Fig. 6). The locking cover should be removed before the
switch position is changed (do not forget to disconnect the instrument from the mains).
To facilitate the location of the solder joints, the figures 3, 4 and 5 have been included. Changing the soldering
connections is done as follows:
For removal of the existing connections, use a desoldering iron. Make sure that the joints are clean and that no
solder is left around them. Then make the connections as indicated in table | and clean the board to remove
excessive flux.
Programming the frequency selector for the T.V. ranges
Each one of the five frequency selection push-buttons can be preset by the varicap-fine tuning to any required
channel within a television range. The instrument is delivered with the push-button selection switches preset
as follows:
— push-buttons 1 and 2 in range ! (38 to 90 MHz)
— push-button 3 in range III (170 to 250 MHz)
— push-button 4 and 5 in the UHF range (470 - 820 MHz)
If you desire to change the preset ranges you must do this according to the following instructions:
— Remove the top cover by loosening the screws on the backside of it.
— The solder joints of the push-button switches are located on the front right-hand side of the printed-circijt
board unit 2. Each solder joint has been indicated with a letter and a number. The numbers correspond wi th
the numbers on the front plate above the push-buttons. For each range the solder joints must be conneced
in accordance with table II.
The changing of the soldering connections has been described in chapter 2.1.3.
In operation, the range, for which a push-button switch has been preset, is shown on the range indicator.
Position
The instrument can be used in any desired position. Take care that the instrument is not subjected to excess ve
ambient temperatures.