T885 Initial Tuning & Adjustment; Channel Programming; Introduction - Tait T880 II Series Adjustment Manual

M880-00
3.1

Introduction

When you receive your T885 receiver it will be run up and working on a particular fre-
quency (the "default channel")
6MHz switching range (i.e. ±3MHz from the factory programmed frequency), you
should only need to reprogram the receiver with the PGM800Win software (refer to the
PGM800Win programming kit and
However, if you want to switch to a frequency outside the 6MHz switching range, you
will have to reprogram and re-tune the receiver to ensure correct operation. In this case
you should carry out the short tuning procedure described in
If you have carried out repairs or other major adjustments, you must carry out the full
tuning and adjustment procedure described in this section (except for
3.2

Channel Programming

You can program up to 128 channel frequencies into the receiver's EEPROM memory
(IC820) by using the PGM800Win software package and an IBM
PGM800Win to select the receiver's current operating frequency (or "default channel").
If the receiver is installed in a rack frame, you can program it via the programming port
in the speaker panel. However, you can also program the receiver before it is installed
in a rack frame as follows:
• by using a T800-01-0010 calibration test unit;
• via D-range 1;
• via D-range 2 (standard T800-03-0000 auxiliary D-range only);
• via SK805 (internal Micromatch connector).
If you do not use the T800-01-0010, you will have to connect the PC to the receiver via a
module programming interface (such as the T800-01-0004).
For a full description of the channel programming procedure, refer to the PGM800Win
programming software user's manual.
Note: When an auxiliary D-range kit (D-range 2 - T800-03-0000) is fitted, you can
also select a channel with an external switch, such as the DIP switch on the
rack frame backplane PCB. Refer to Part C in the T800 Series Ancillary
Equipment Service Manual (M800-00-101 or later issue) or consult your
nearest Tait Dealer or Customer Service Organisation for further details.
1. Use the "Read Module" function in PGM800Win to find out what the default channel is.
Copyright TEL
T885 Initial Tuning & Adjustment
1
. If you want to switch to a frequency that is within the
Section 3.2 below).
Section 3.4.
Section 3.4).
™
PC. You can also use
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