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QRZ! Ham Radio 5
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QRZ Ham Radio Callsign Database - Volume 5.iso
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bc2500.mod
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1995-01-08
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3KB
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68 lines
Subject: Bearcat 2500 XLT
Date: 04-13-94 01:37
From: Bert Burland
To: Gill Blue
Replies: #3393 <-
Hi Gill!
{ Quoting: Gill Blue to All }
GB> Help
GB> Does anyone have the C******r Restoration mod for this Radio.
─ [34] SCANRADIO (1:19/24) ──────────────────────────────────── ECHOMAIL025 ─
Msg : 36 of 237
From : Chris Partin 1:109/239 Mon 18 Oct 93 23:00
To : All
Subj : Bearcat 2500 Mod
─────────────────────────────────────────────────────────────────────────────
Here is the first info I've seen on restoring the "business band",
from Usenet (lightly censored):
From: brett@micromed.com (brett miller)
Newsgroups: alt.radio.scanner
Organization: Micro-Medic BBS - +1 408 279 5240 - Public Access
MODIFICATION TO RESTORE [xxxxxxxx] COVERAGE TO THE
UNIDEN BEARCAT BC 2500XLT
CAUTION: 1. THIS MOD SHOULD ONLY BE ATTEMPTED BY THOSE FAMILIAR WITH
SOLDERING AND DESOLDERING SURFACE MOUNT COMPONENTS.
2. THIS MODIFICATION WILL VOID THE FACTORY WARRANTY.
3. THE ECPA SAYS LISTENING TO [xxxxxxxx] IS A NO-NO.
NOW THAT YOU KNOW WHAT YOU ARE GETTING INTO, HERE IS THE MODIFICATION:
1. REMOVE THE BATTERY PACK AND ANTENNA.
2. REMOVE THE 4 SCREWS HOLDING THE CASE TOGETHER. (2 BLACK SCREWS AND 2
CHROME SCREWS)
3. CAREFULLY PRY THE BACK OFF OF THE RADIO.
4. PULL UP ON THE METAL BRACKET WHICH HOLDS 2 OF THE 3 PRINTED CIRCUIT
BOARDS. IT WILL COME FREE (ALONG WITH THE TOP OF THE RADIO) FROM THE
LOWER PCB. LEAVE THE RIBBON CABLE ATTACHED TO THE TWO DIFFERENT
SECTIONS.
5. LOCATE THE MAIN PROCESSOR ON THE LOWER PCB: UNIDEN UC-1513A
BETWEEN THE MICROPROCESSOR CHIP AND THE SPOT WHERE THE BATTERY
TERMINALS ARE SOLDERED IN, YOU WILL SEE A GROUP OF 5 (VERY SMALL)
(1/16 WATT?) BLACK RESISTORS. (THEY ALL HAVE "104" PRINTED ON THEM.)
6. UNSOLDER THE LOWER LEFT MOST RESISTOR WITH A FINE TIP SOLDERING IRON,
AND MOVE IT ONE PLACE TO THE LEFT (THE RIGHT SIDE OF THE RESISTOR WILL
NOW BE SOLDERED WHERE THE LEFT SIDE USED TO BE).
PUT IT ALL BACK TOGETHER AND YOU ARE DONE.
SEARCH STEPS SHOULD BE THE CORRECT 30 KHz
STANDARD DISCLAIMER: DO THIS AT YOUR OWN RISK. I TAKE NO RESPONSIBILTY
IF YOU TRASH YOUR RADIO. THE ABOVE IS FOR EDUCATIONAL PURPOSES ONLY.
NO ONE UNDER 18 ADMITTED WITHOUT AN ADULT. OBJECTS IN MIRROR ARE CLOSER
THAN THEY APPEAR.
Brett N7OLQ
--
brett@micromed.com (brett miller)