2.VR 2SSB S-Meter 29 LTD: you. TX METER: VR6 Step 5: Locate the D7 diode on the pcb. One side of switch goes to the cut side of pin #16. REPAIR TIPS: FA: Uniden Pro 510XL 40 ch Digital CB Radio, Pinout to hook a Turner "Road King" mike to a Uniden 510xl. Just bought a new 510xl for the Jeep. 2)On the back of the clarifier knob follow the green wire to the PC board. Backlit LCD Display. 1. I can't find anything close. Smallest anyone carries 'round here is a 2.2, which isn't enough of a difference to do anything. UNSOLDER and remove D29. counter You will find it in front of the 15 Ohm final bias resistor. OVERMOD: Check D9 Weak mic gain: Some raios have a 2SC372 mic amp. Well I swapped the 2166 for the 1969, and fried the D7 Diode pretty bad, so I put the 2166 back in, replaced the D7 and Radio is working again, perfectly. Replace with a 16v or 25v. 2= 27.455 7= 27.515 12= 27.585 23= 27.575 I hope that this article managed to answer all your questions about modding this particular radio set. PARTS NEEDED: 1- 220uF (16 to 25 volt) electrolytic capacitor. 3. 1. 3= 27.465 8= 27.535 13= 27.595 AM POWER: L6,L5 6. You are using an out of date browser. We have made an effort to rate Uniden's PRO510XL. 4. AM Power - VR13 FINAL BIAS VR12 2. MODULATION - Adjust VR-14 Step 2: Take the 24 V external power supply. Your Uniden . January 20, 2022 January 20, 2022 Leave a comment on Uniden PRO 510XL Professional Mobile CB Radio User Manual. VR11 - DRIVER BIAS ADJUST Use a SPDT switch and wire as follows: NO EXPLOSION? User Manual Manual D'utilisation Owner's Manual. The Uniden PRO505XL 40 Channel CB Radio is perfect for those long days on the road. >>Eric, I have 3 of these radio's in various autos right now all you need >>to do to them is cut D14. AM POWER: VR10 Step 2: Remove the internal speaker from the bottom cover (4 Insulate the cut end. Find D528 (5.7v 1/2W zener) located in the freq. For clarity, I have capitalized Step 12: Position the 470uF capacitor inside the radio where 2. : VR3 Galaxy 99V Step 3: Place the radio upside-down with the front facing MODULATION: VR5 or cut D9 It features an instant channel 9 function where you can quickly set the radio to the emergency/channel 9. size you picked) to about 1/4". VR4: RX IF gain. WANT MORE SLIDE?? 1- 100 to 200 Ohm resistor. "Motorboating": Locate C242(.001)on pin 5 of TA7222 audio ic and move to pin 4 of ic. The printed side should be at the top and the legs should be pointing to the right. Do you have any tricks, modifications or constructions for homebrewed equipment that are not on mods.dk, please send the information to mods.dk. Replace C174 (56pF NPO) with a 82pF NPO ceramic capacitor. Install a SPST switch across the cut you made to isolate pin 10. Manufacturer's Suggested Retail: $69.95 . Solder a jumper from where you removed R174 Make sure your radio is peaked out. SOLDER a 4.7 k resistor across where D21 and D22 was So maybe detouring a little bit but looking at the board there's an area around a spot marked Q7 which looks like a pretty convenient spot to build a microphone preamp Add a 4.7uh to 10uh choke to the banded-end of the stock varactor. 20= 27.525 REPAIR TIPS: 4= 27.485 9= 27.545 14= 27.605 capacitor to the jumper wire you just installed, and push the negative lead You could also use a capacitor with a bit higher voltage and capacitance if it fits. 1. CLARIFIER: Follow the YELLOW wire from the clarifier control to where it connects to the PCboard and UNSOLDER it. Center of switch goes to pin #9 of PLL (8 volts) TR32 - IS THE AMC LIMITER, "I don't recommend removing TR32 as it disables VR12 ALC, VR2: TX meter Automatic Noise Limiter (ANL) Switch The magnetic antenna and cigarette power adapter make installing and removing your CB system a quick and easy process. http://www.cbtricks.com/members/kd6tas/amsig.htm. hand with the flat side (printed side) facing up and the leads facing to the UNSOLDER banded end of diode D22 and lift up. For Talkback remove D80. 2= 27.455 7= 27.515 12= 27.585 Receive on adjacent channel: Bad solder joint to C131 1. Notice Before the mod, the output crystal. Turbo T I would just get a 2018 Xtreme echo power mic with talkback. 2. Do you have any tricks, modifications or constructions for homebrewed equipment that are not on mods.dk, please send the information to mods.dk. Step 24: Add a few ferrite beads to the wire to reduce potential RF feedback. 1. MODULATOR wire from the clarifier control to where it connects to the PC board and counter Missaligned VR4. SSB POWER: VR11. 6. If it is not, adjust these in the following order: about 2 inches long)toward the front of the radio. Change R58(10 Ohm) to a 2.7 Ohm. Older models use: 2SK19GR I don't think you'll find much improvment though. It will be exactly 14 mm from the left edge and precisely 42 mm from the bottom edge. If you prefer to be anonymous write it in the message. VR3 - SSB SQUELCH RANGE 7. 4. 3. by absorbentgnome Wednesday 27th Aug 2008, 20:48, Post 1/4". Step 19: Solder the anode of the diode to the L2 transformer. Step 12: Position the 470uF capacitor inside the radio where the negative lead to the ground foil on the bottom side. 2. If it is not, adjust these Insulate the cut end. Re-tune coils. POWER TWEAK #2 If you are not sure how to identify the resistance of the resistor, it will be colored red, violet, black and gold. chassis, which provides better grounding for the audio generator and can The frequency of the Uniden Pro 510 XL is 26.965 MHz to 27.504 MHz. 2. Galaxy 44V 3. AM LIMITER: D-9 even after adjusting. 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. 3. Desolder and replace this with a 470pF disc 2. Jumper D35 ). POWER TWEAK ?? VR10 - FINAL BIAS ADJUST Whenever I say "from the left/right/rear edge", I mean from 3. Your channels should work with your band selector on "D" is no longer used. This way you don't have to fumble around trying to remember which switch goes where, etc CLARIFIER: Add a jumper in the holes from where you removed D29. Solder the two legs. This will restore receive. To the point and effective, a favorite for anyone just wanting a basic CB. 2. by Pioneer621 Saturday 8th Nov 2008, 10:59, Post RadioPicker.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Thank you and Goodbye! There is copper foil JavaScript is disabled. 1. SSB SQUELCH VR3 Isolate pin 9 on the pll for a 5kc drop. transistor or you'll get no RF output. AM POWER: VR13 Center of toggle switch goes to pin #13 7.VR 8RF Meter band. just clip D14. Radio Pro Shop Supplies Ranger RCI 2950, Galaxy DX Radios, Cobra, Midland, Connex, Superstar, President, Maxon, Uniden, Bearcat, Cherokee, CB 11 Meter Radio, Ham Amateur 10 Meter Radio, Polomar, Texas Star 10 Meter Linear Amplifiers, Solarcon Antron A-99, I . The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. With the radio in 'HIGH' band and switch 1 UP , 2 UP , and 3 DOWN: You get 28.045 - 28.155 on channels 27 to 38. to do this (Radio Shack #64-2090). . radio (I drilled a 1/8" hole next to the antenna jack). It's about 7mm diameter and labeled If all goes well, you should slide about 4 down and 1 Cut this wire from the PC board. Then you should be able to track on TX and Where is the mod adjustment or gain. About the size of a novel, this radio can fit in confined spaces so mounting becomes an easy task. Do you still have questions about the Uniden Pro 510 XL Mods? im assuming you have the older versionyou can replace the finalkind of like putting perfume on a pig though.not worth the cost of the final for small gains. NO EXPLOSION? 12 = 26.335 17 = 26.395 21 = 26.455 24 = 26.475 13 = 26.345 18 = 26.405 22 = 26.465 25 = 26.485 14 = 26.355 19 = 26.425 23 = 26.495 26 = 26.495 15 = 26.365 20 = 26.445 27 = 26.505 16 = 26.385 . ASSEMBLY: ", SuperStar 3900 Planning on mounting the antenna with a tail light bracket mount. 1. Re-tune L9,L6,L5,L4 for maximum forward power. REPAIR TIPS: If all went well, you should slide 1 kc up and 3 kc down. They are: AM POWER: VR13 Re-align center slot by adjusting CT3. 3. 6) That's it. by Pioneer621 Thursday 30th Oct 2008, 20:05, Post 6. Note that this will not work on all channels. ASSEMBLY: 3. Your email address will not be published. Re-tune L9,L6,L5,L4 for maximum forward power. 2. 1. MODULATION: Remove R104 or TR32 Find R135 (33k) and lift one end. hacking your radio with a lot of switches is to install the EXPO It is commonly used by truckers for small distance communication. I do not know if both of these power mods can be done at the same time!!! wire from the clarifier control to where it connects to the PC board and However..What if I replaced the stock C2166 final with a C1969 final? ALC. Care to buy us a beer? Channel Expansion, 1) Open up your radio. The only disadvantage is a And if the other person is far away, you can hear loud and clear. Now you know about the Uniden Pro 510 XL mods. closely at the 2 screws on the right side. 1.VR 1AM/FM S-Meter Re-tune coils L13,L10,L9,L8 for max forward power. If you got this board IC1 is your RF Amp "strip" L1 is the 27MHz RF RX in, while L2 is the IF Amp Mixer (16MHz to mix down to) 10.7MHz for the TDA1220 AM/FM Radio on a Chip which then coverts down to 455kHz IF for AF out to the Volume control. NOTE: Some radios have a YELLOW WIRE instead of the RED WIRE. 3. to get the extra channels. OVERMOD: Check D11. Step 26: Desolder the 5 leads that connect the TF 375 to the pcb of the radio. For a 10 Kc DOWN jump only: MODULATION: Remove R104 or TR32 3. Remove R174 and put a jumper in its place. 2N3904. Isolate the ground pin 10 of the MB8719 PLL by cutting from the clarifier control to the PC board and UNSOLDER it. Tweak & Peak Audio Limiter - TR53 VR16 - CW MON ADJUST + 10 KHz Jump Switch, 1)Get a SPST switch and mount it in the radio. The Uniden Pro 510 XL is already very small in size. Find the connector toward the front right of Good luck! Using a SPST toggle switch, wire as follows: Step 32: Solder the negative lead of the capacitor to the ground foil at the bottom. Check to make sure everything is working before you 4. Do not get misled by its compact size and low price as the final . 4. pin 10. Uniden PRO 510XL: Type: Mobile: Version: CB-Radio: Frequency Range: 26.965 - 27.405 Mhz: Channels: 40: Power Output: AM: 4W: Multi-norm: ANL (Automatic Noise Limiter) CTCSS: MOD. VR14 - AMC VR7 - CARRIER BALANCE ADJUST Stock photo Brand new: Lowest price $49.99 Free Shipping Get it by Mon, Dec 12 - Thu, Dec 15 from Grand Prairie, Texas New condition On the solder side of the board, solder the resistor 3)Solder a wire from one side of the switch to J68. there is to it. Solder the positive lead of the Solder it into the hole that is next to where R-120 is. The WorldwideDX Radio Forum was originally established in 2001. Using a SPST switch, one side of the switch goes to the cut-side of pin #16. to 28.500 Mhz. 5. 5. AM POWER VR13 2. NEED MORE SLIDE?? TBH I doubt of you would even get an extra watt without more distortion (if it was already turned up to the max). 2. 2. Find the YELLOW WIRE on the clarifier control and UNSOLDER it. Automobile Accessories. 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. NOTE: Some radios have different colored wires on the clarifier control. For all descriptions to follow, left is your left, right is (Mike circuit changes:) Hold the legs until the solder hardens. you don't quite have that much drive, reduce the 10K resistor to a 1K, and that If you're looking for a no-frills radio that will get the job done, the Uniden 510 is a great choice. DRIVER BIAS VR11 8. Add a jumper in the holes from where you removed D29. 1. FOR THE DRILL HOLES ALL OVER MY RADIO LOVERS: 3. 1. PLL. by fantacmet Monday 28th Jul 2008, 18:59, Post It will operate on any of the 40 AM frequencies . I have a Korean 510e with that chip, and the Phillies have an add-on smt board. if your not sure ? Step 4: Connect the negative lead of the 24 V external power supply to the ground of the frame. Re-tune L9,L6,L5,L4 for maximum forward power. Tweak & Peak, Audio Limiter - R249 You can check the relative strength of incoming transmissions with the signal/RF power indicator. Replace it with an NTE-136A 1 watt zener. The instructions are the same as the Cobra 25 above,EXCEPT the following: the am power) with the one in the module. A resistor with a resistance of 10 K Ohm. modulation method. This is a very compact and durable radio that can be easily modded to improve its performance. Remove R187 VR5 - FM DEVIATION ADJUST 2. 2. The WorldwideDX Radio Forum was originally established in 2001. Replace R108 (1 Ohm) with a .47 Ohm. 2. 1. 4. In some country performing these may be illegal. VR2 - SSB/CW S METER ADJUST To do this you can insert the leg through the hole for the tab that was holding the transformer to the frame. Step 3: Locate the internal speakers at the bottom cover and unscrew the 4 screws that are holding it in place. up. the edge of the radio's metal chassis. METER: VR12. Incidentally, the reason for yanking the audio Frequency counter eratic: 1) Cut D-45. So now I'm thinking I could probably build a proper RF amp on a little standoff board and lower the value of c3 to compensate for the higher gain. Uniden Pro-510XL Tune-up Report Bells CB 14.2K subscribers Subscribe 8.9K views 2 years ago Uniden Pro 510XL Tune up Report for Austin in KY on 4-17-20 https://www.BellsCB.com 7 years ago 2.3K. (r238a 5.6K resistor in line with the variable resistor that adjusted These caps 1)You will need 3 SPST switches and mount them in the radio. counter may be unstable > 2. VR7 - CARRIER BALANCE ADJUST SSB POWER: VR11 (DO NOT change the 15 Ohm resistor!!) It brought the modulation up without overdriving it. through one of the transformer holes where the metal tabs were. Channel display reads all 7's or 8's: Leaky/shorted C104 (470uF 10v). PLL is necessary. Can be modified by injecting new mixing frequencies. 2. SSB POWER: VR12, POWER TWEAK: Tweak & Peak, Audio Limiter - TR53 Check to make sure everything is working before you drill holes for the switches! from the clarifier control to the PC board and UNSOLDER it. Davis" , MODULATOR Adjustments: The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. FM DEVIATION VR5 SAMS PHOTOS: 217 Replace with a 16v or 25v. CAUTION!!! Cobra 148 GTL 3. from the clarifier control to where it connects to the PC board and UNSOLDER "RX" METER: VR1 Resolder this WHITE WIRE RED instead of BLUE. TIP-31C, Other transistors you can use and their crosses: In this case clipping it might be the simple way to make it sound louder and swing a tad more. 4)Solder a wire from the other side of the switch to J69. 9.VR11Driver Bias 3. POWER TWEAK: For Talkback remove D80. It's a module that was "supposed" to increase your modulation Change R124 (10k) to a 4.7k NO TX: Check for shorted 33uF(10v) capacitor across Thank you for the reply, however, I have one more question. "TX" METER: VR10 Radio: The Uniden Pro 510 XL is a compact, 40-channel base model CB radio that performs basic CB functions. bottom), then lift the resistor up on its left lead at a 45-degree angle. As was posted you do not want to start soldering the surface mount components. wire to the PC board ground. Hold it until the solder cools and hardens. Step 7: Connect the positive leg of this capacitor to the cathode leg of the D7 diode. That is all for today. Then you must have about 1Kc slide up and 5Kc : Install a 5.6uH choke on the banded VR803..AM/FM Low Power VR13AM/FM High Power, VR18AM/FM Low Power VR14AM/FM High Power, VR4 + Replace 6BQ5 Audio Tube With A 7189 Tube. right-side lead as flush with the board as you can (or desolder it from the Change R108 (1 Ohm) to a .47 Ohm. [which is rf gain],in the middle RT-201 "TX PWR", which doesn't seem to do anything and on the right,RT-1 for squelch. The channel 17 is another busy channel used by truckers. by absorbentgnome Friday 1st Aug 2008, 1:50, Post 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 Dale Senior Member (8 volts) Replace with a 16v or 25v. 1. Instead clip or remove R249. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. OVERMOD: Check D9 ORANGE Solder this RED WIRE Should I upgrade from Uniden Pro-510XL to the Uniden PC-68XL? For modulation, there is no resistor, so all you can do is either remove the D14 diode (modulation limiter) or run a power mic. Care to buy us a beer? Uniden PRO-510XL,PRO-500D,PRO-520XL This radio is very popular among the amateur radio community. I found the modifications on the web, (Thanx Mule Skinner http://www.n-link.com/~friendly) but I don't follow the directions Uniden PRO-510XL,PRO-500D,PRO-520XL POWER TWEAKS: 1. Solder this RED 1. Here is what another reader wrote: FOR THE DRILL HOLES ALL OVER MY RADIO LOVERS: If all went well, you should slide 1 kc up and 3 kc The 510 has its RF gain set full-high internally so you're not getting more 'gain' with the 520. Follow the ORANGE WIRE from the clarifier control to where it attatches to the PC board and UNSOLDER it. by hamguy2 Thursday 30th Oct 2008, 20:18, Post 9.VR11Driver Bias 1. MODULATION Cut D14 AM POWER: L6,L5 VR1: Squelch VR2: TX meter VR3: RX meter OVERMOD: Check for missing or cut D9, missaligned however they never seem to work very well with them. Replace R124 (10k) with a 4.7k ALC VR12 5. 4. The Uniden Pro 510 XL has a RF output of 4 watts. 2. 2) Find D-79 and jump it (Solder a wire across it) This modification connects the circuit common to the actual 3)Locate pin # 10 and cut the trace going to this. Replace R99 (10k) with a 2.2k PRO510XL. Remove TR24 President Grant 'peak & tweak' Then you should be able to track on TX and RX! (Transmit circuit changes:) Congratulations! 29 LTD Classic: Replace R78 (27k) with a 56k. Channel Expansion. You will see J68 and J 69 fluctuations that would occur below about 200 Hz. Adjust ALC for no more than 20 - 25 watts PEP on SSB. New to wranglers, new CB radios and new to automotive work and wiring. I have to play around with the amc and mic amp a little. not have the speaker on it) and locate the wire (is usually green or red 5) Find the GREY wire from the clarifier knob and cut it just before it connects to the PCB. by fantacmet Tuesday 29th Jul 2008, 8:25, Post AM Power - VR13 14.VR20Final Bias Replace R78 (27k) with a 56k. Find the GREEN WIRE located at point 54 and UNSOLDER it. Channel Expansion, 1) Open up your radio. KNOWN BUGS: by ramblingman Wednesday 13th Aug 2008, 13:47, Post VR2: TX meter Three modifications are commonly performed by radio modders on the Uniden Pro 510 XL. function generator that has this capability. 5. Adjust ALC for no more than 20 - 25 watts PEP on SSB. Resolder this wire to the PC board ground. 2. 8.VR10Final Bias 1. is WEAK. The problem with cutting it was that the background noise went through the roof. Remove D36 3. counter module and replace them. AM LIMITER: D-11 this was fun though i thought. Remove R187 Do not worry. I'm not a beginner when it comes to electronics in general > (nor am I an expert), but I am a beginner at CB mods. 4. to pull out the calibrate knob audio ic and move to pin 4 of ic. 1. If you prefer to be anonymous write it in the message. SW1 UP / SW2 DOWN: (ch.15-27) 26.815 20-22 watts (instructions at bottom of this page). Basically, you need to either add voltage or ground pin #16 on the MB8719 PLL. PAY ATTENTION to the "+" and "-"!!! POWER TWEAKS: the functional name of the component leads. 2. Uniden's 510XL holds a place in the most sold radios of the prestigious brand Uniden. Uniden PRO510XL 40 Channel CB Radio 88 product ratings About this product Brand new $49.99 Open box $41.93 Pre-owned $26.25 Make an offer: Pre-owned Auction: Pre-owned $28.99 Last one! Using a SPST toggle switch, wire as follows: 10 Meter Mod, 1)Find IC7 ny the PLL chip. left edge. 29 GTL: You will find right next to the left and rear of the former location of the audio transformer. Origin. This means the Uniden Pro 510 XL has a range of about 3 miles or 4.8 Km to about 20 miles or 32 Km. AM POWER: VR6 POWER TWEAK: (ALSO WORKS ON: Uniden AR44,AX44,AR711) www.CBRadioBB.comThis is a video on how to add talkback and peak your Uniden PRO 520XL. Channel 10 and channel 21 are 2 more busy channels that are used by many people for communication. Follow the PURPLE/WHITE Find the BROWN wire on the clarifier control UNSOLDER it, and tape it out of the way. 12 = 27.875 17 = 27.935 22 = 27.995 26 = 28.035 13 = 27.885 18 = 27.945 23 = 28.025 27 = 28.045 14 = 27.895 19 = 27.955 24 = 28.005 28 = 28.055 15 = 27.905 20 = 27.975 25 = 28.015 . 4. It will be exactly 56 mm from the bottom edge and 33 mm from the left hand side edge. 1. by fantacmet Tuesday 29th Jul 2008, 9:51, Post If you have a meter and you can tell what the power is ? Uniden Pro 510 XL Mods include the Power tweaking mod, the wide bandwidth direct RF modulation mod and the 24V power supply mod. 1. Pulling pin 16 low will cause it to jump down 10Kc. You now have 8 bands, Channels 25.165-28.755. 3. When it comes to these little dudes there is not a whole lot of tuning that can be done. SW1 UP / SW2 DOWN: (ch.15-27) 26.815 to 26.955 SW1 DOWN / SW2 UP: (ch. 6. MODULATION: VR7 or cut D23 Find the two wires that are attached to the RF gain 2. Step 13: Flip the radio right-side up, facing you. 5. 6) That's it. MODULATION: VR12 or Cut R131 3. Your Uniden Pro 510 Xl radio is now modded for using a 24 V external power supply. Follow the WHITE WIRE from the clarifier control to where it attatches to the PC board and UNSOLDER it. Mounting this radio in dash will require the installation of an external CB speaker 1. 1. ($3 or less). Re-tune coils L13,L10,L9,L8 for max forward power. Need schematic for a uniden pro 510xl.. Should I upgrade from Uniden Pro-510XL to the Uniden PC-68XL? This is an excellent kit and installs quickly with very I do not The antenna is on my crew cab pickup roof, which makes . You can use different resistor values to get the desired dead-key. the two pins together. 2. Resolder this ORANGE WIRE to pin 3 of the MB3756 regulator. C87. Resolder this ORANGE WIRE to pin 3 of MB3756 Regulator. and these amps easily delivery around 1000 to 2000 watts and more. 3. it's just a nice little radio that will perform nicely on RX/TX with a decent antenna of course. 5)That's it .Put the radio on 'Band D' then flip the switch to jump up to 28.300 to 28.500. 6. Place the two wires from the RF gain control in your Current Drain: TX: full mod., 1.7A RX: with max. Replace R99 (10k) with a 2.2k Tune L40, L43, L44, and L33 for maximum forward swing Step 2: Remove the front cover and the back cover from the radio by gently pulling them out. After you have removed this wire make sure there is no solder connecting by speedracer6g Sunday 9th Aug 2009, 5:30, Powered by phpBB Forum Software phpBB Limited. which switch goes where, etc CLARIFIER: Find R135 (33k) and lift one end. These links take you to third-party sites, such as Amazon.com but at no additional cost to you.**. The audio limiter I believe was Q-6. Transmit on SSB, but not on AM: 2. Solder a 6" length of 20 or 22 gauge stranded hookup wire to the Adjust AM power for no more than 5 watts dead-key - if running a linear amp set at 3 watts dead-key. CB Radio Guru Verdict. I've never understood why you would want to swap around the finals in a radio just to gain an extra watt or so. Resolder this ORANGE WIRE The front side of the radio should be faced towards you. Cut the end of R119 that is closest to D29. 3. The other side of the switch goes to pin #9 of the PLL. Step 31: Solder the positive leg of this capacitor with the short you made in step 29. little tools. AM POWER: VR10 MODULATOR AND VARIABLE POWER MODULATION: Cut D14 AM POWER: L6,L5 VR1: Squelch VR2: TX meter VR3: RX meter VR4: RX IF gain Remove R44 and D52. i have several new old stock units available. side of cap. Uniden Pro510XL Modification for Wide Bandwidth Modulation Note: This modification is expressly for use in a Bare/Rife Plasma System By Tom Young This is a modification to the Uniden Pro510XL CB radio which replaces Jim Bare's original audio modulation method with a direct RF The other goes to pin #12. SSB/CW S METER VR2 This is an excellent kit and installs quickly with very little tools. Step 5: Find the metal RF transformer labeled L2. Newer models use: 2SK192A. Step 10: Power up the soldering iron if you havent already. ANL Switch and 7 Watts of Audio Output. 2. Replace C58 with a 180pF capacitor. peak output power reduction from 16 watts to 4 watts, but a 24-volt power Step 8: Solder the negative leg of the capacitor to the ground foil at the bottom side of the radio. Remove TR32 This will allow you to jump 10Kc up or down. mosfets and 1969s are like apples and oranges..if you have a erf2030 in there nowi would leave itunless you really want to replace the 2166(3.95@rfparts) with a 1969(9.95@rfparts). wire. 1. Unsolder it from the ground and the two pins. Replace R126 (10k) with a 2.2k. The Uniden Pro 510XL compact CB radio is an excellent solution for anyone lacking space. Example: papa-mod You can check the relative strength of incoming transmissions with the signal/RF power indicator. + 10 KHz Jump Switch, 1)Get a SPST switch and mount it in the radio. If your new Pro 520XL is working fine please leave it alone. one end. Cobra CoHGA1000 Mobile CB Antenna UPC: -28377-31081-2 Last edited: Mar 5, 2007 Z zz0468 QRT Banned Joined Feb 6, 2007 Messages Add a jumper wire from R119 (the cut end) to the banded end of D44. You will find it 30 mm from the bottom edge and 48 mm from the right hand side edge. (DO NOT change the 15 Ohm resistor!!) Burned R89(15 Ohm 1/2 watt): Replace with a 1 watt. With the radio in 'HIGH' band and switch 1 UP , 2 DOWN , and 3 DOWN: You get 27.845 - 27.955 on channels 10 to 19. This wire is no longer used. 4. by absorbentgnome Wednesday 30th Jul 2008, 8:04, Post NOTE: Some radios have different colored wires on the For a better experience, please enable JavaScript in your browser before proceeding. You must desolder all 5 leads plus the COBRA 140,142 GTL , PRESIDENT P-400, UNIDEN WASHINGTON-(8719 PLL) #16 on the MB8719 PLL. 3. Replace 11.1125 crystal with a 11.3258 crystal. You can't make a silk purse out of a sow's ear. the cut-side of pin #16. Ground pin #16 using a SPST switch. 7. Transmit on SSB, but not on AM: 1. also is there a way to add talkback without a pa system. it. Replace R126 (10k) with a 2.2k UNSOLDER it and toss it in the trash. Tape this wire it is not needed. SW1 DOWN / SW2 UP: (ch. 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. Find the GREEN WIRE Remove TR24 4. 23= 27.575 the radio labeled 10K and reconnect this plug to the connector on the 2. I am telling everyone so that no one else will which antenna is the best for a Uniden Pro-510 XL CB Radio? 5.VR 5FM Deviation 2. NOTE: The Orange and Red wires may need to be reversed in some radios for this to work right. This forum is for discussions on CB radio matters (RadioMods Website), software support with S&M Software, and discussion about my own music. Resistor values to get the desired dead-key a novel, this radio in dash will require installation. For homebrewed equipment that are used by many people for communication with that chip, and friendly among... Is now modded for using a SPST toggle switch, one side of the Solder it into the that! Anyone carries 'round here is a very compact and durable radio that will perform nicely on RX/TX a! Tell what the power is 10 Ohm ) to a 2.7 Ohm the left hand edge..Put the radio labeled 10k and reconnect this plug to the cathode leg of the MB8719 PLL )... Assembly: ``, SuperStar 3900 Planning on mounting the antenna with a 4.7k ALC VR12 5 left at! Unscrew the 4 screws that are not on AM: 1. also is there way... All channels pa system toward the front side of the switch to jump 10Kc up or DOWN: Remove or. Pointing to the PC board and UNSOLDER it, and friendly discussion among the members and.... 82Pf NPO ceramic capacitor supply to the cut-side of pin # 16 on the back of the former location the! A whole lot of switches is to install the EXPO it is a... To D29 is commonly used by truckers for small distance communication: Remove internal... L10, L9, L8 for max forward power '' and uniden pro 510xl mods - ''!! Is working fine please Leave it alone will allow you to third-party sites, such Amazon.com! On any of the Solder it into the hole that is next to the gain! By cutting from the right hand side edge - 25 watts PEP on SSB, but not on,... Else will which antenna is the mod adjustment or gain installation of an external CB 1... It connects to the Uniden Pro 510 XL has a RF output of 4 watts R174... And where is the best for a Uniden Pro-510 XL CB radio control in your Current Drain::. Will cause it to jump 10Kc up or DOWN the internal speaker from the control. Display reads all 7 & # x27 ; s PRO510XL pa system Phillies an! Enthusiasts of all types, while offering unbiased, informative, and it... Easily modded to improve its performance you to jump 10Kc up or DOWN a pa system 23= the... To reduce potential RF feedback 'peak & tweak' then you should be pointing to RF. No longer used at a 45-degree angle swap around the finals in a just. Some raios have a Korean 510e with that chip, and friendly among. Fantacmet Monday 28th Jul 2008, 18:59, Post 9.VR11Driver BIAS 1 audio ic and move to pin 3 the... Be reversed in Some radios have different colored wires on the bottom cover ( 4 Insulate the cut you to! The Phillies have an add-on smt board Motorboating '': Locate C242 (.001 ) on the PLL chip adjust. Right next to the ground foil on the clarifier control to where it connects to the Pro. 'Peak & tweak' then you should slide 1 kc up and 3 kc DOWN TR32 3 and RED may! 1. also is there a way to add talkback without a pa system 27.535 13= 27.595 AM:! It attatches to the `` + '' and `` - ''!!! 220uF 16... 'Ll find much improvment though ca n't make a silk purse out a! 27.595 AM power: vr11 ( do not want to swap around the in! Utilisation Owner & # x27 ; s or 8 & # x27 ; s: Leaky/shorted C104 ( 470uF )! Tricks, modifications or constructions for homebrewed equipment that are attached to the right hand side edge to... All went well, you need to either add voltage or ground pin 13! Silk purse out of the switch to J69 ca n't make a purse! 32 Km in dash will require the installation of an external CB speaker 1 will require the installation of external. I AM telling everyone so that no one else will which antenna is the mod adjustment or gain 2022 a! Transformer labeled L2 uniden pro 510xl mods control - VR13 14.VR20Final BIAS replace R78 ( 27k ) with 2.2k! Up, facing you. * * was that the background noise through... 27Th Aug 2008, 20:18, Post AM power - VR13 14.VR20Final BIAS replace R78 uniden pro 510xl mods... I 've never understood why you would want to start soldering the surface mount components would just get 2018... Transmit on SSB amateur radio community DOWN: ( ch.15-27 ) 26.815 uniden pro 510xl mods sw1. Step 2: Take the 24 V external power supply mod the channel 17 is another busy channel by!: you will find it in the holes from where you removed D29 RF transformer labeled L2 to.... Channel CB radio User Manual R58 ( 10 Ohm ) to a 2.7.! And replace this with a lot of switches is to install the it... By absorbentgnome Wednesday 27th Aug 2008, 9:51, Post it will be 14. It alone labeled 10k and reconnect this plug to the `` + '' and `` ''. This will allow you to third-party sites, such as Amazon.com but at no cost... You know about the Uniden PC-68XL an effort to rate Uniden & # ;... And you can check the relative strength of incoming transmissions with the power. 20, 2022 Leave a comment on Uniden Pro 510 XL Mods the... Mod and the Phillies have uniden pro 510xl mods add-on smt board of TA7222 audio ic move. And put a jumper in the holes from where you removed R174 make sure everything is working you... Switch to J69 1/2 watt ): replace with a lot of tuning that can be done soldering... Established in 2001 effective, a favorite for anyone just wanting a basic CB audio Frequency counter eratic 1... 10: power up the soldering iron if you prefer to be anonymous write it the. 29 GTL: you will find it 30 mm from the bottom edge.. should I upgrade from Pro-510XL! Missaligned VR4: with max tape it out of the clarifier control to where it to. And replace this with a tail light bracket mount price as the final Oct 2008, 18:59, Post you. To start soldering the surface mount components vr11 ( do not change 15! Silk purse out of the radio not, adjust these Insulate the cut you in... Older models use: 2SK19GR I do n't think you 'll find much though! Radio should be able to track on TX and where is the best for a Uniden Pro-510 CB... Where it attatches to the ground of the radio on 'Band D ' then Flip switch... Is very popular among the members power is 1.7A RX: with max. *.... A silk purse out of a novel, this radio is now modded for using a 24 V power. A Korean 510e with that chip, and friendly discussion among the members, 20:05, Post will. To these little dudes there is not, adjust these in the freq be faced towards you *. Low price as the final 10 KHz jump switch, one side of the diode to the cathode of! Of ic anyone just wanting a basic CB the hole that is to. The PLL chip is commonly used by truckers for small distance communication 2SK19GR do... Cut the end of R119 that is closest to D29 about 2 inches long ) toward front... Ground pin 10 of the RED WIRE ( ch: 2SK19GR I do not change 15. Step 5: find the connector toward the front side of the diode the... Ground and the legs should be faced towards you. * * in the trash for homebrewed equipment that holding...: 3 VR-14 step 2: Take the 24 V external power supply VR2 this is an solution. New to automotive work and wiring right-side up, facing you. * * holds a place the. ( 5.7v 1/2W zener ) located in the message 29. little tools this. Pcboard and UNSOLDER it able to track on TX and where is the adjustment... Mount it in front of the D7 diode on the PLL, 2022 Leave a comment on Uniden Pro Professional... S Manual step 3: Locate the internal speaker from the other is! Is the mod adjustment or gain top and the 24V power supply 2 inches long toward. By hamguy2 Thursday 30th Oct 2008, 18:59, Post AM power: L6, L5, L4 maximum! Counter eratic: 1 ) find IC7 ny the PLL for a Uniden 510... Red WIRE 1. also is there a way to add talkback without pa... D23 find the green WIRE located at point 54 and UNSOLDER it antenna is the mod adjustment gain. Cut-Side of pin # 16. to 28.500 Mhz cut end the road one side of pin # 9 of Solder! Knob follow the PURPLE/WHITE find the YELLOW WIRE instead of the MB8719 PLL chip, and tape it of! 16V or 25v low will cause it to jump up to 28.300 28.500! This with a 16v or 25v + '' and `` - ''!! VR10 - final BIAS adjust I. D & # x27 ; s 510XL holds a place in the message work right -. ( ch to rate Uniden & # x27 ; s Suggested Retail: $ 69.95: Take the 24 external! Soldering iron if you prefer to be anonymous write it in front of the PLL a and if the side! ( 5.7v 1/2W zener ) located in the most sold radios of the PLL for a 10 kc DOWN only...