HumanTechnik PL-51 Instrucciones De Servicio página 12

Adjustment of the PL-51 – Changing of the wire assignment
As some telephones have different wire assignments the function of the
PL-51 with those telephones is not warranted. However the PL-51 can be
adjusted to different wire assignments. To do this the code board inside the
battery compartment has to be repluged.
There are 4 possible positions for the code board: A, B, C and D.
Position A:
Position B, C and D:
Adjusting different wire assignments:
1. Unplug the telephone cord from the telephone connection socket
2. Open the cover of the battery compartment
3. Take out both batteries
4. Pull the code board out of the slot with caution and turn it.
5. Insert the code board back into the slot.
6. Insert the batteries (mind the polarity).
7. Close the battery compartment and plug the telephone cord back into the
telephone connection socket.
Should your telephone amplifier still not work, repeat the above steps.
Maintenance and care
The PL-51 does not require any maintenance. If the unit does become dirty,
simply wipe it clean with a soft, damp cloth. Never use spirits, thinners or
other organic solvents. Do not set up the unit where it will be exposed to full
sunlight for long periods. In addition it must be protected against excessive
heat, moisture and severe mechanical shock.
Warranty
The PL-51 is a very reliable product. Should a malfunction occur despite the
unit having been set up and operated correctly, please contact your dealer.
The warranty covers the repair of the product and returning it to you free of
charge during the warranty period. It is essential that you send in the pro-
12 English
works with most telephones (delivery status of
the PL-51)
further possible wire assignments