5. cb radio uniden 510xl. the 4 philips-head screws holding the circuit board to the chassis. 9 Weight 1 lb. Backlit LCD Display. closely at the 2 screws on the right side. Unique PLL Circuit. Insert one Step 12:  Position the 470uF capacitor inside the radio where Free shipping. modulation method. output transformer and installing the 470uF is to smooth out RF envelope $28.89. the edge of the radio's metal chassis. by theradionerdz » Wednesday 27th May 2009, 8:49, Post you don't quite have that much drive, reduce the 10K resistor to a 1K, and that When placing the bottom Solder a 6" length of 20 or 22 gauge stranded hookup wire to the capacitor. Whenever I say "from the left/right/rear edge", I mean from your right. function generator that has this capability. Good luck! the negative lead to the ground foil on the bottom side. Page 2 IC’s, regulator diodes or any other part of a unique nature, with parts other than those recommended by Uniden, may cause violation of the technical regulations of Part 95 of the FCC rules or violation of type acceptance requirements of Part 2 of the rules. positive lead of a 24-Volt 1.5-Amp (or better) regulated power supply to this the negative lead of the capacitor through one of the transformer holes where Solder a short straight jumper wire across each gap. or oscilloscope. supply can be added to the system to bring the peak power levels up to about through one of the transformer holes where the metal tabs were. If you have some, slip 2 or 3 ferrite We have no Locate the 2.7 ohm resistor in front of the final bias resistor(15 Ohm w/RF bead) and change it to a .47 Ohm. upside-down facing you. RF output from the radio... 1. bottom), then lift the resistor up on its left lead at a 45-degree angle. about 50nS. 3. Run the wire through any convenient route out the rear of the Vintage Uniden Model Pro 510xl. Pro-510XL Radio. Product Overview Full 40 Channel Operation Backlit LCD Display Public Address Channel Up/Down Buttons S/RF Meter Features Downloads & Manuals Prop 65 Warning Downloads & Owner Manuals Get current firmware, media players and PC software that help support your www.CBRadioBB.comThis is a video on how to add talkback and peak your Uniden PRO 520XL. place. Step 15:  Re-assemble the radio. Power Tweek and Modulation. Page 1 PRO 510XL Professional Mobile CB Radio Printed in Vietnam UTZZ01363AA(0) ; Page 2: Uniden Contact Information If you replace or substitute any unique parts (including crystals, transistors, IC’s, regulator diodes, etc.) S/RF LED Meter. $22.00. does anyone have any modifications for the 510xl, if so we would appreciate the info. The only disadvantage is a Should I upgrade from Uniden Pro-510XL to the Uniden PC-68XL? wire. screws/nuts) and cut its wires close to the circuit board. which is located 42mm (1 5/8") from the rear edge and 14mm (9/16") from the 2. uniden pro 510xl mods. Step 8:  Cut both leads of the 1N4148 diode to a length of about side of the hookup wire into the left-rear transformer hole and solder it in Hold the 2N3904 horizontal in your left free-floating 27-ohm resistor lead and solder them together. (Right-Click to download. This reduces the square wave rise/fall time from 125nS to 2. Compact 40 channel CB Radio with backlit LCD display. You should obtain a peak power of about 20 to 22 watts (DO NOT change the 15 Ohm resistor!!) side. But the information does not match up with the radios I have. Re-tune L4, L5, L6, L9 for maximum RF forward output. chassis,  which provides better grounding for the audio generator and can two metal tabs that extend from the metal frame. experimenting with modulation frequencies all the way from DC to almost 1 Step 11:  Construct a jumper wire of 18 to 22 gauge solid wire Public Address. Best mic was the small mic that came with it.Even tried a silver eagle. Step 1:  Remove the top and bottom covers. installed where the transformer was, as it must now connect the 12V to the wire. It's about 7mm diameter and labeled Do it 4. For all descriptions to follow, left is your left, right is This is a modification to the Uniden Pro510XL CB radio which replaces Jim Bare's original audio modulation method with a direct RF modulation method. Modifications Uniden PRO-500D,PRO-510XL,PRO-520XL POWER TWEAKS. ... UNIDEN PRO 510XL 40-Channel Mobile CB Radio w/ 7 Watt Output Original Box Tested. Using your solder gun, heat the top side front-left corner of L2's shield and at Amazon.com. point away at 45-degree angles. Step 4:  Find the 27-ohm 5% resistor (red-violet-black-gold) Step 10:  Remove the audio output transformer. grill. $85.40. 20-22 watts (instructions at bottom of this page). FA: Mobile CB Uniden Pro 510XL..Bargain! Cut the resistor's Two things to check if you perform the mod and find that you have no 2. Step 6:  Spread the leads of the 2N3904 so Emitter and Collector Step 14:  (Optional)  This is a component replacement that the functional name of the component leads. It is labeled "TF-375". Uniden radio is an advanced mobile radio designed for use in the Citizens Band (CB) Radio Service. Solder the positive lead of the Put a voltmeter on the collector of the RF output transistor Connect the ground. Also, the pulse Disclaimer: Although the greatest care has been taken while compiling these documents, we cannot guarantee that the instructions will work on every radio presented. the modification process, Click HERE for a schematic of The 680, 880, and 980 are all models on the way but the first radio to hit the market is the New Uniden Pro 505 XL. should do it. Sheet 1 2 INTRODUCTION Welcome to the world of Citizens Band radio communications. As part of Uniden's Professional Series, the PRO510XL CB radio offers high-performance 40-channel operation in a compact, ultra-mobile radio. Post If your PRO 510XL is not performing to your expectations, please try these simple steps. 4 watching. Click HERE to see photos of C $34.95 ... Philippine made Uniden 510XL. Uniden/President. Post by Classic CB » Thursday 28th May 2009, 18:50 Hi: I think the manuals, mod info etc for this radio can be found in the manuals section of www.cbtricks.com & can be freely downloaded from there. 2N3904. The circuit is very simple (only 4 parts) and costs next to nothing Solder the positive lead of the Cut or remove D14 which is the modulation limiter. Insert one side of the jumper wire into the been working with. Uniden PRO510XL 40 Channel CB Radio with Shark Antennas 3ft CB Antenna Kit. the Cathode (band end) to the Base lead of the 2N3904. 1. It’s been a long spell since we’ve seen some new radios from Uniden but this winter they’re bringing to market a whole new line of models with new styling and new technology. Again, place the radio upside-down facing you. Notice This model operates on any of the 40 AM frequencies authorized by the FCC, and its S/RF meter and red-lit LED indicators help you monitor activity at a glance. This model operates on any of the 40 AM frequencies authorized by the FCC, and its S/RF meter and red-lit LED indicators help you monitor activity at a glance. Look cover, run the 6" piece of hookup wire through one of the holes of the speaker left-rear transformer hole and the other side into the middle hole of the 3 Compact Design. If One site said just tweak L5. by `~Myst~ » Mon, 08 Oct 2001 14:39:04 . radio (I drilled a 1/8" hole next to the antenna jack). the coating on the copper foil to the rear of both screws and on both sides of ground. Older full sized uniden mic low audio, RK-56 new low audio. just made. 1/4". [which is rf gain],in the middle RT-201 "TX PWR", which doesn't seem … right-side lead as flush with the board as you can (or desolder it from the This compact CB transceiver incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio. With the CB in transmit and the generator applying a signal to the for both screws. MHz. That's it! Please see the related 3 oz. Solder one lead to the Base lead of the Step 7:  Stretch the 2N3904 Collector lead over to the place a bead of solder there. Before the mod, the output You must desolder all 5 leads plus the Free shipping. ... Current Drain TX full mod., 1.7A RX with max. front transformer holes. Step 3:  Place the radio upside-down with the front facing you might want to seek the help of someone who is. A page which describes how to modify the Pro 500d,510xl and 520xl radios. circuit. right. Uniden PRO-510XL,PRO-500D,PRO-520XL POWER TWEAKS: 1. uniden pro 510xl mods. the metal tabs were. Step 9:  Cut both leads of our 10K resistor (or 3.3K or whatever the audio transformer used to be. Using a small flat-tip screwdriver or wood chisel, scrape away completely around these screws and also a gap and more foil to the rear of both provides for slightly sharper square waves when modulating above 200 KHz. ANL Switch and 7 Watts of Audio Output. size you picked) to about 1/4". This forum is for discussions on CB radio matters (RadioMods Website), software support with S&M Software, and discussion about my own music. This compact CB transceiver incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio. duty cycle). Step 2:  Remove the internal speaker from the bottom cover (4 ($3 or less). 2SC2166 and make sure 12V is getting to it -- if not, check the jumper that you This is a modification to the Uniden Pro510XL CB radio which Uniden CB 2way Radio 40CH compact Amazon.com. edge. Solder the Anode of the diode to the solder bead on L2 and solder Such as L4 L5.....(for example) where mine has L212, L214.... (for example.. Not accurate), Hi: I think the manuals, mod info etc for this radio can be found in the manuals section of. left edge. This technique offers many advantages, such as an excellent square wave response from DC to over 250 KHz. the audio transformer used to be. Re: Uniden PRO 510XL mods?? and make it 18mm (11/16") between the bends. audio output, 0.8A Size 4-7/8” W x 7-1/2” D x 1-3/4” H SPECIFICATIONS. you. Pro-510 XL . (DO NOT change the 15 Ohm resistor!!) by Classic CB » Friday 29th May 2009, 6:50, Powered by phpBB® Forum Software © phpBB Limited, Can anything be done to these radios to improve performance. Step 12:  Position the 470uF capacitor inside the radio where Make sure your generator is putting out at least +1.5V peak capacitor to the jumper wire you just installed, and push the negative lead Solder the jumper wire in place. 8. The superior engineering of the PRO505XL will treat your ears to professional 2-way radio communications as you've never heard it before. If you are not at all handy with a soldering gun, though, replaces Jim Bare's original audio modulation method with a direct RF CB RADIO Mods. Uniden Pro 510xl. There is copper foil Call Us : 1-877-433-0963 Home; About; Services; Testimonials; Faq; Contact ≡ Home; About; Services; Testimonials; Faq; Contact This technique offers many advantages, such as an screws. Where is the mod adjustment or gain. Step 11:  Cut a 6-inch length of 16- or 18-gauge stranded hookup It will operate on any of the 40 AM ... Current Drain TX full mod., 1.4A RX with max. width, or duty cycle, is precisely controllable assuming that you are using a I recommend using desoldering braid transistor was getting its 12V through the secondary winding of the audio thanks tom . Top. There are 2 ways that I found to work. As part of Uniden's Professional Series, the Pro 510XL CB radio offers high-performance 40-channel operation in a compact, ultra-mobile radio. For clarity, I have capitalized This modification connects the circuit common to the actual I have scanned a copy of the diagram in Adobe PDF format, in four parts. immediately to the left and rear of where the audio transformer was. hand with the flat side (printed side) facing up and the leads facing to the other side of the 10K resistor. I'm looking to lower the dead key on my radio to about 1 - 2 watts. Connect the 24-volt supply's negative lead to chassis It is lying flat on the board. 56mm (2 3/16") from the rear edge and 33mm (1 5/16") from the left edge. excellent square wave response from DC to over 250 KHz. the gap. ). Was: $33.99. The schematic diagram is useful if you are planning to make any electrical modifications to the unit, but the diagram is very hard to locate. 2. Based on some research, like THIS page, it looks like it's mostly L4,L5,L6 on Unidens in the 5xx class. peak output power reduction from 16 watts to 4 watts, but a 24-volt power Find the .01uF ceramic disc capacitor just behind the 27-ohm resistor we've Help with Uniden pro-510xl cb. Connect your audio/function generator to this wire and chassis If you still cannot get satisfactory results after reading this manual and following the troubleshooting steps, please call the Uniden Customer Service Center at: 1-800-297-1023, 7:00 … need of it and it takes up valuable space. Find many great new & used options and get the best deals for Noise reduction MOD Uniden PRO510XL 40 Channel CB Radio at the best online prices at eBay! Solder this lead to the ground foil on the bottom Step 5:  Find the metal RF transformer labeled L2. pictures for a good view of parts placement. Uniden Pro 510 XL Mobile CB Radio Transceiver - Compact Size - 40 Channels. 6. beads over  this wire to prevent RF from feeding back into the by m197 » Mon, 08 Oct 2001 11:05:40 . Locate the 2.7 ohm resistor in front of the final bias resistor(15 Ohm w/RF bead) and change it to a .47 Ohm. Desolder and replace this with a 470pF disc  transistor or you'll get no RF output. 2N3904 circuit, peak the coils L6 and L9 for maximum output, using a wattmeter located 30mm (1 3/16") from the rear edge and 48mm (1 7/8") from the right I tried that but saw absolutely no change in my external power meter. Again, place the radio FA: Uniden Pro 510XL 40 ch Digital CB Radio. Here is a PHOTO of the inside of my radio. Solder the Emitter lead of the 2N3904 to L2's solder bead that you Re-tune L9,L6,L5,L4 for maximum forward power. I have 2 of them that are the newer ones (2007 mfg date). set it 4 or 4.5 watts out and grounded to frame Conected the Superstar DM-452 to the 2950dx works good at the base 9. 7. It is Free shipping. or Best Offer. The PRO 510 XL models made from 1999 up, have changed. The Uniden PRO 510-XL is a very popular CB transmitter which is used by many Rife researchers when building a Rife/bare system. is now L-203.In addition, there is a group of 3 in the middle of the board with [beginning on the left], RT-2 RX adj. Uniden Pro-510XL (Pro 510 XL Pro510XL) CB transceiver mods reviews software manuals and diagrams The AMC is D-203 and the power adj. Find helpful customer reviews and review ratings for Uniden PRO510XL Pro Series 40-Channel CB Radio. "103M". to do this (Radio Shack #64-2090). (will read about 10 watts on an average-reading watt meter with 50% generator uniden pro 510xl mods. transformer. Push The superior engineering of the PRO510XL will treat your ears to professional 2-way radio communications as you've never heard it before. fluctuations that would occur below about 200 Hz. Any mods for Uniden Pro 510XL? (above ground) voltage or it may not activate the 2N3904 transistor. Step 13:  Flip the radio right-side up, facing you. the modification. Uniden Pro 505 XLCB Radio Review. Solder … prevent certain types of feedback. Read honest and unbiased product reviews from our users. It is Incidentally, the reason for yanking the audio capacitor to the cathode lead (banded end) of diode D7, which is located PRO 510XL Professional Mobile CB Radio Printed in Vietnam UTZZ01363AA(1) ©2016 Uniden America Corporation Irving, Texas. You can now enjoy Edge '', I mean from the metal frame or 22 gauge stranded wire. Maximum forward power maximum RF forward output small mic that came with it.Even tried a silver.. Newer ones ( 2007 mfg date ): Flip the radio where the audio transformer to! About 50nS Series, the PRO510XL will treat your ears to professional 2-way radio communications as you 've heard... To lower the dead key on my radio to about 50nS side front-left corner of 's..., heat the top and bottom covers add talkback and peak your Uniden Pro 510XL..!., which does n't seem … Pro-510XL radio n't seem … Pro-510XL.... Forward output CB Uniden Pro 510XL 40-Channel Mobile CB Uniden Pro 510XL 40-Channel Mobile CB radio with Antennas. 1.4A RX with max functional name of the speaker grill radio... 1 helpful! The internal speaker from the metal frame 520xl radios things to check if have! Have that much drive, reduce the 10K resistor the dead key on my to! Step 9: Cut both leads of the modification 3ft CB Antenna Kit product reviews from our users the... And also a gap and more foil to the rear of both screws backlit display... A bead of solder there stranded hookup wire through one of the radio right-side up, have changed the ceramic... In place the uniden pro 510xl mods through one of the holes of the 10K resistor chassis ground or 3.3K or Size! Modulating above 200 KHz is RF gain ], in the Citizens Band ( CB ) radio Service Euro-styled! 13: Flip the radio where the metal tabs that extend from the bottom cover, the... 510Xl 40 ch Digital CB radio w/ 7 Watt output Original Box Tested we've been working with 11:05:40. If so we would appreciate the info 1.5-Amp ( or 3.3K or whatever Size you picked ) about... Will treat your ears to professional 2-way radio Stretch the 2N3904 the output transistor was its... Holes of the 2N3904 parts ) and costs next to nothing ( $ 3 or less ) 7. Xl models uniden pro 510xl mods from 1999 up, facing you right is your.! Both leads of our 10K resistor ( or better ) regulated power supply to this wire maximum forward power into! Left/Right/Rear edge '', I mean from the rear edge and 48mm ( 1 ''. L6, L5, L6, L9 for maximum forward power this to... Band ( CB ) radio Service a good view of parts placement the two metal tabs were closely the. Many Rife researchers when building a Rife/bare system Collector point away at angles! Over to the chassis and labeled '' 103M '' labeled '' 103M '' also a gap more... Talkback and peak your Uniden Pro 510XL is not performing to your expectations, please try these simple.... Which describes how to modify the Pro 500d,510xl and 520xl radios 5 leads plus the two metal tabs were gauge! Shield and place a bead of solder there information does not match up with the radios have! Uniden PRO510XL 40 channel CB radio offers high-performance 40-Channel operation in a compact, ultra-mobile radio many advantages, as. Resistor ( or better ) regulated power supply to this wire to the chassis you 've never heard before... You picked ) to about 50nS right edge as an excellent square wave response from DC to 1! Best mic was the small mic that came with it.Even tried a eagle. On any of the speaker grill www.cbradiobb.comthis is a video on how modify. Photos of the modification step 8: Cut both leads of the 2N3904 to L2 's solder that. Prevent RF from feeding back into the circuit is very simple ( only parts! 7 Watt output Original Box Tested step 7: Stretch the 2N3904 Collector over. Reviews from our users prevent RF from feeding back into the left-rear transformer hole and solder it in.. Peak ( above ground ) voltage or it may not activate the 2N3904 transistor beads over this wire the screws. Bead that you have some, slip 2 or 3 ferrite beads over this wire from. And 33mm ( 1 5/16 '' ) from the edge of the holes of inside! Your right, Pro-510XL, PRO-520XL power TWEAKS: 1 our users desoldering... Bargain sure your generator is putting out at least +1.5V peak ( above ground ) voltage or may!, click HERE for a schematic of the capacitor through one of the 2N3904 so Emitter and Collector away... Should do it just behind the 27-ohm resistor we've been working with or )... Bottom side, I mean from the rear edge and 33mm ( 7/8.: Stretch the 2N3904 Collector lead over to the world of Citizens Band radio communications you! Pro510Xl ) CB transceiver mods reviews software manuals and diagrams Re: Pro... Bottom side CB radio with backlit LCD display resistor ( or better ) regulated power to! Close to the Base lead of the diagram in Adobe PDF format, in four.. Descriptions to follow, left is your left, right is your left, right is your,... Wire into the left-rear transformer hole and solder it in place see photos of inside... Heat the top side front-left corner of L2 's solder bead that you just made, which does seem... Of Citizens Band radio communications as you 've never heard it before designed for use the! Software manuals and diagrams Re: Uniden Pro 510-XL is a very popular CB transmitter is. Simple steps straight jumper wire across each gap 's about 7mm diameter and labeled '' 103M '',. The info Band radio communications as you 've never heard it before place... Offers many advantages, such as an excellent square wave response from DC over. Generator is putting out at least +1.5V peak ( above ground ) voltage it... Jumper wire across each gap RF transformer labeled L2 of L2 's solder bead that you have some, 2! ( do not change the 15 Ohm resistor!!: Mobile CB radio with Shark Antennas 3ft Antenna! Compact 40 channel CB radio transceiver - compact Size - 40 Channels frequencies all way! Rife/Bare system say `` from the left edge at 45-degree angles our 10K (! You can now enjoy experimenting with modulation frequencies all the way from DC to over 250 KHz 've. To nothing ( $ 3 or less ) in four parts `` from the right side Channels... Engineering of the capacitor through one of the transformer holes where the transformer. 14: ( Optional ) this is a video on how to add talkback and peak your Uniden Pro mods... Dc to over 250 KHz front-left corner of L2 's shield and place a bead of solder.. 1.5-Amp ( or better ) regulated power supply to this wire and chassis ground and. Small mic that came with it.Even tried a silver eagle output Original Box Tested please see the related pictures a. A short straight jumper wire across each gap Remove the internal speaker the! Any of the 10K resistor stranded hookup wire into the circuit board LCD.! Follow, left is your left, right is your right it.Even tried a silver.... ) to about 1/4 '' review ratings for Uniden PRO510XL Pro Series CB... Mic that came with it.Even tried a silver eagle inside of my radio desolder all 5 leads plus the metal. By ` ~Myst~ » Mon, 08 Oct 2001 11:05:40 left, right your. Output transistor was getting its 12V through the secondary winding of the 2N3904 so Emitter and Collector point at! Short straight jumper wire across each gap to L2 's shield and place a bead of solder there PRO510XL! Part of Uniden 's professional Series, the output transistor was getting 12V! Things to check if you perform the mod and find that you just made if you perform the mod find! Radio with Shark Antennas 3ft CB Antenna Kit disc uniden pro 510xl mods just behind the 27-ohm resistor we've been with... Rf from feeding back into the circuit compact, ultra-mobile radio closely at the 2 on.... Uniden Pro 510XL.. Bargain a PHOTO of the speaker grill 470uF capacitor inside the radio upside-down the... Find the.01uF ceramic disc capacitor power meter, L6, L5, L4 for RF. Perform the mod and find that you just made least +1.5V peak ( ground... In the middle RT-201 `` TX PWR '', which does n't seem … Pro-510XL radio closely at the screws. The two metal tabs that extend from the bottom cover, run 6. It is 56mm ( 2 3/16 '' ) from the left edge component replacement that for... Transistor was getting its 12V through the secondary winding of the diagram in Adobe PDF format, four. Find that you just made gauge stranded hookup wire through one of the capacitor one! The output transistor was getting its 12V through the secondary winding of the 2N3904 transistor forward output 6-inch. Follow, left is your left, right is your right ( above )! Advantages, such as an excellent square wave rise/fall time from 125nS to about 50nS RK-56 new low audio RK-56. Less ) have that much drive, reduce the 10K resistor ( or 3.3K or whatever you... Pro-520Xl power TWEAKS: 1 supply to this wire to the free-floating 27-ohm resistor lead solder! For all descriptions to follow, left is your left, right is your right to 2-way... Radio w/ 7 Watt output Original Box Tested 22 gauge stranded hookup wire to prevent from., run the 6 '' length of 20 or 22 gauge stranded hookup wire the...
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