Troubleshooting - 4

The Thermal Compound on the RF Transistors located on the Power Combiner unit, have a tendency to become 'hard' after years of use. This 'hard' transformation can actually damage the unit by excessive heat transfer reduction from the component to the heat sink and bias limiting diode. It is recommended that you replace this heat sink compound, at least the compound on the diodes, every-time you have the amplifier serviced.
To replace the heat sink compound, follow the same instructions listed in 'Low Power Output' above to gain access to the power combiner unit.

There are two Lithium Batteries in your FL-7000. One is on the Main Processor unit behind the front panel and the other on is on the Automatic Antenna Tuner processor board. Which ones do you replace? If they read low voltage (below 2.8 VDC) OR:
1. Replace the battery on the Main Processor if the LEDs for tracking do not resume where they were during a power down, power up cycle. i.e If you were on 17 meters , turned off the power for a while and turned it back on and the LED shows 160 meters.
2. If the unit does not remember the last tuned state during a power down, power up cycle and ONE band change with the TUNER ON , replace the Lithium Battery on the Antenna Unit CPU. Both can be changed with minimum teardown of the unit if you are good with a soldering iron.