Ramsey Electronics FZ-146 Specifications download pdf (Page 46)

FX 146 • 46

FX- TROUBLESHOOTING GUIDE

The FX- transceiver is designed to W-O-R-K with a minimum of adjustment

or alignment. By imprinting the location and correct orientation of each

component on the PC-board itself in addition to publishing detailed assembly

steps, we have virtually guaranteed the successful operation of your

transceiver from the moment you turn on the switch.

A detailed guide to servicing a transceiver requiring so few internal

adjustments is virtually pointless to compile. (It would be like writing a

troubleshooting guide to a jigsaw puzzle: "Make sure all puzzle parts are in

the right place, and it will be a nice, complete puzzle. That's it!")

The best assurance of trouble-free operation is to build, understand and test

your transceiver in the stage-by-stage sequence presented in this book. If

you chose to install all parts first and then test, and then encountered

difficulty, we recommend that you compare your assembly work to the stage-

by-stage steps: USE the double-check spaces.

We simply MUST accept that any malfunction is caused by:

• incorrect part selection

• incorrect part orientation (diode or capacitor polarity, transistors,

IC's etc.)

• soldering error (missing connection, solder bridge)

• omitted part

• part damaged during assembly

• part defective in manufacturing (extremely rare)

• part damaged by incorrect installation of other part(s)

• part breakdown after extended operation

• defective external device or cable connected to the transceiver

circuit board.

The above possibilities may seem vague, but they cover what can go wrong

in any multi-stage electronic device. For this reason, it is important for you to

LEARN the FX circuit design in as much detail as possible, which is why

both the schematic and assembly instructions are presented stage by stage.

Troubleshooting is a process that considers EVERYTHING possible,

ESPECIALLY including every external device connected to the unit:

• power supply

• ALL cables and connectors

• microphone, speaker

• antenna AND

• ALL cables and connectors!

If you are at all hazy about the binary programming of the "N" number,

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 144 145

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Ramsey Electronics FZ-146 Specifications Page 46