FX 146
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The RAMSEY FX Transceiver Kit WARRANTY
Please read carefully BEFORE calling or writing in about your Kit. Most problems can be
solved WITHOUT contacting the Factory!
Notice that this is not a "fine print" warranty. We want you to understand your rights and ours
too! All Ramsey kits will work if assembled properly. The very fact that your kit includes this
manual is your assurance that a team of knowledgeable people have field-tested several
"copies" of this kit straight from the Ramsey inventory. If you need help, please read through the
manual carefully: all information required to properly build and test your kit is contained within its
pages! In particular, the FX Transceiver has been documented exhaustively.
1. DEFECTIVE PARTS: It's always easiest to blame a part for a problem in your kit. Before you conclude that
a part may be bad, thoroughly check your work. Today's semiconductors and passive components have
reached incredibly high reliability levels, and it's sad to say that our human construc tion skills have not. Very
rarely, a sour component might slip through. All our kit parts carry the Ramsey Electronics Warranty that they
are free from defects for a full (90) days from the date of purchase. Defective parts will be replaced at our
expense. If you suspect a part to be defective, please mail it to our factory for testing and replacement.
Please send only the defectiv e part(s), NOT the entire kit. The part(s) MUST be returned to us in suitable
condition for testing. Please be aware that testing can usually determine if the part was truely defective or
damaged by assembly or usage. Don't be afraid to tell us that you "blew it". We're all human: in most cases,
replacement parts are very reasonably priced.
2. MISSING PARTS: Ramsey Electronics project kits are packed with pride in the U.S.A. If you believe we
packed an incorrect part or omitted a part clearly indicated in your assembly manual as supplied with the
basic kit by Ramsey, please write us with information on the part you need and proof of the kit purchase.
Before assuming a part value is incorrect, check the parts list carefully to see if it is a critical value such as a
specific coil or IC, or whether a range of values is suitable (such as 100 to 500 ufd.). Often, common sense
will solve a mysterious missing part problem. If you are missing five 10K ohm resistors and find five extra 1K
resistors, a simple VOM check will likely confirm that the "1K" resistors are actually the "missing" 10K units.
("Hmmm, I guess the red band really does look orange!")
3. FACTORY REPAIR OF ASSEMBLED KITS: To qualify for Ramsey Electronics factory repair, kits MUST:
1.
NOT be assembled with acid core solder or flux.
2.
NOT be modified in any manner.
3.
BE returned in fully assembled form, not partially assembled.
4.
BE accompained by payment of the proper repair fee. No repair will be begun until we
have received the MINIMUM repair fee of $49.00, or authorization to charge it to your
credit card account.
INCLUDE a descript ion of the problem and legible return address. Do not send a separate letter: include all
correspondence with the unit. Please do not include your own hardware such as non-Ramsey cabinets,
knobs, cables, external battery packs, and the like. Ramsey Elec tronics reserves the right to refuse to repair
ANY item in which we find excessive problems or damage due to construction methods. To assist customers
in such situations, Ramsey Electronics, Inc. reserves the right to solve their needs on a case-by -case basis
without creating policy or precedent.
Please understand that our technicians are not volunteers and that set -up, testing, diagnosis, repair and
paper work can easily take over two hours of paid employee time on even a simple problem.
Understand
too, that aligment is part of the kit building process and is not covered by this Warranty.
Of course, it
we find that a part was defective in original manufacture, there will be no charge to repair your kit (But please
realize that our technicians know the difference between a defective part and parts burned out or damaged
through improper use or assembly.)
4. REFUNDS: You are given ten (10) days to examine our products. If you are not satisfied, you may return
your unassembled kit with all parts and instructions and proof of purchase to the factory for a full refund. The
returned package should be packed securely. Insurance is recommended. Please do not cause needless
delays, read all information carefully.
RAMSEY ELECTRONICS, INC. 793 Canning Parkway , Victor, New York 14564
Telephone 716-924-4560 Fax 716-924-4555
FX-146
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85
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CR29. Install FL1, the 21.4 MHz IF filter. Its 3 wires may be inserted
either way; make sure its body is snug against the top of the board
before soldering.
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CR30. Prepare three 8" lengths of hookup wire for connecting R13, the
100K Squelch Control. Strip back ¼" from one end of each wire. Tin all
ends.
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Select a wire, connect one stripped end to the three connecting
lugs of the control.
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Observe the diagram and locate the squelch wire connections on
the printed circuit board.
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Connect the three wires to the printed circuit board as shown in the
diagram. Pay careful attention to the wire placement as not to wire
the
squelch
pot in
“backwards”.
?
CR31 Install D20, 6.2 volt zener diode (gray body, black band).
Observe correct placement of the banded cathode end. Zener diodes
are widely used as voltage regulators. They have the interesting
property of keeping a constant voltage across their terminal leads.
?
CR32 Install Q17, 2N3904 transistor, observe the flat side.
The last 4 steps involved the building of a voltage regulator to supply a
steady source of voltage to the receiver IC chip. At this point in your work,
you could actually receive strong local signals by connecting an antenna
wire at C17 and a high frequency signal source (e.g. a signal generator) to
the input of U1 at pin 1. Th e signal you would receive would be on a
FX PCBOARD
FL1
C16
R6
SQUELCH
