User's Manual

Table Of Contents

G3L-1929- Installation and Service Manual

5-5 Field Replacement of the Module

The GL3-1929-120 multi-carrier power amplifier module can be replaced in the field on site by a

qualified technician with experience maintaining RF power amplifiers and similar equipment:

To replace a power amplifier module, proceed as follows:

1. Set On/Off switch on the front panel of the amplifier module to Off (down).

2. Loosen the two thumbscrews that secure amplifier module to the subrack.

CAUTION

When removing the amplifier from the subrack, it is very important to support the am-

plifier such that the rear of the module does not suddenly drop when the guide rail

disengages from the track. A drop such as this could damage the rear 21WA4 multipin

connector.

3. With steady even pressure, use handle on front of amplifier to pull module out of subrack.

4. Install replacement in reverse order of steps 1 through 3 above.

044-05138 Rev. A 5-4 May 2003