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The
Realistic DX-394 was probably the least expensive tabletop receiver
in the marketplace at the end of 1995. It soon acquired a poor
reputation after several very negative reviews. This reputation was
rightly deserved as the designers made many fundamental design
errors in the analogue circuits. They soon acknowledged this fact
and released a second redesigned 'B' version which addressed some of
its design imperfections. However Its digital performance is
excellent with lots of front panel features.
The modifications presented here are a mix of ideas from the web,
with some new ones from Chris Barlow ( G8LVK ) Senior Technician at
Monitor Internet.
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All
credit to the inventors of the original DX-394 mods |
Frank
Cathell |
Tom
Holden |
Danny
Boulet |
Richard
Putz |
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The
mods mostly use inexpensive readily available components, resistors
and capacitors. You should not attempt any of the mods unless you
feel confident in your soldering and construction skills. Also you
must have all the tools and facilities to perform each modification.
The information, circuit diagrams and photos should help you easily
and successfully improve the performance of your DX-394. New
modifications and ideas are continually under development so keep
visiting this page.
Yahoo!
Groups Radio Shack DX-394
The Forum for DX-394 Users & Improvers
A Fan Club for the Tandy / Radio Shack / Realistic DX-394 General
Coverage Communications Receiver. Most complete collection of mods,
documentation, FAQ (frequently-asked-questions) and links to
relevant sites. Hints and Tips from a helpful community of
enthusiasts. |
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Always disconnect the
DX-394 from the mains power supply before opening it. To remove the
top and bottom covers you simply unscrew the four small black cross
point screws located on the back of the receiver. When taking off
the top cover mind the speaker wires, see photo. Look for the
connector block CN7 and unplug this to remove the loudspeaker from
the main board. |

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Main Board Top View |

Main Board Bottom View |
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