1. Find the .01uF ceramic disc capacitor just behind the 27-ohm resistor we've Oh awesome - you can head on over to CB Tricks site and work with the "e" version of the schematic. The problem with cutting it was that the background noise went through the roof. 2. Change R108 (1 Ohm) to a .47 Ohm. Remove TR24 know if both of these power mods can be done at the same time!!! TIP120 = ECG 261 = 276-2068 (Radio Shack), DON'T BOTHER buying TIP3055 = ECG 392 = 276-2020(Radio Shack) VARIABLE POWER: Re-tune coils L32,L30,L29,L28 and VR8 for maximum forward AM power. 2)Find the PLL MC145106. (DO NOT change the 15 Ohm resistor!!) Change R76 (3.3k) to a 1k (located near mike socket) Make sure your generator is putting out at least +1.5V peak AM POWER: VR10 AM Power - VR13 Replace R124 (10k) with a 4.7k Find the YELLOW WIRE Replace R108 (1 Ohm) with a .47 Ohm. Modifications Uniden PRO-500D,PRO-510XL,PRO-520XL POWER TWEAKS 1. Do you still have questions about the Uniden Pro 510 XL Mods? Solder the positive lead of the Step 15: Re-assemble the radio. Hopefully this should give you about 3 khz of slide. 5. Follow the YELLOW 4)This should make the radio TX/RX on the same frequency. It is a very compact radio with only the most essential features. Stretching L12 gets moe output. 5.VR 5FM Deviation Peak and tune UNIDEN PRO 510XL. ASSEMBLY: 3. 1. RX COILS: L3 thru L8 radio (I drilled a 1/8" hole next to the antenna jack). Check to make sure everything is working before you 2)Find IC 6 & 7 by the PLL chip. for a superstar 3900.it only had a 390k ohm resistor in it!! This way you don't have to fumble around trying to remember which switch goes where, etc CLARIFIER: 1. Older full sized uniden mic low audio, RK-56 new low audio. Center of switch goes to pin #9 of PLL (8 volts) Remove D36 1. Follow the RED WIRE from the clarifier control to the PC board and UNSOLDER it. (1/4 to 1/2 watt). WANT MORE SLIDE?? 10.VR12SSB ALC [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. Step 12: Position the 470uF capacitor inside the radio where MODULATION: VR6 or cut D16 You will be needing these tools for the modding process: Now, follow these steps to mod the Uniden Pro 150 XL radio for a wider bandwidth modulation: Step 1: Firstly, use the screwdriver to unscrew all the screws from the front and the back cover of the radio. VR4: RX IF gain. (8 volts) Uniden's 510XL holds a place in the most sold radios of the prestigious brand Uniden. Solder the two legs. VR10 - FINAL BIAS ADJUST Ideal for those needing a basic but reliable CB, the Pro 510 XL offers ANL to help reduce noise and an S/RF meter for monitoring transmit and receive signals. AM POWER: VR6 Do it by Pioneer621 Friday 7th Nov 2008, 6:30, Post Check all connections for shorts. The AMC is D-203 and the power adj. Find R135 (33k) and lift one end. 2. RX! If you clip it and go with a power mic, just check your audio so you don't sound horrible anyone looking for a PALOMAR TX5300 BI-LINEAR AMPLIFIER? Step 34: Locate the 2 screws at the right which are completely covered in copper foil with many gaps. AM SQUELCH VR4 Antenna Connector: UHF, SO-239 If it is not, adjust these in the following order: Remove the bottom cover, be carful not to pull 2. PRO510XL. 3= 27.465 8= 27.535 13= 27.595 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. Follow the ORANGE WIRE Try getting one with at least half an inch of leg on both sides for convenience. Your Uniden . 7. by Pioneer621 Saturday 8th Nov 2008, 10:59, Post NO TX: Check for shorted 33uF(10v) capacitor across PAY ATTENTION to the "+" and "-"!!! OVERMOD: Check D19,TR14,VR5 6.VR 7SSB Carrier Balance the negative lead to the ground foil on the bottom side. The Uniden Pro510XL can be used to remove noise and improve communication reliability and clarity with an integrated ANL and squelch control. for both screws. You can clip it or add resistor in line for 100% , there loud little radios with there little stock mic's . Solder this YELLOW (see Picture) Solder a jumper from where you removed R174 3= 27.465 8= 27.535 13= 27.595 Remove R123 and replace with a jumper. Also, improper modding may cause damages like frequency not transmitting, reduced range, interference, safety issues, etc. Step 6: Place the 470 microFarad in the place where the now removed audio transformer used to be. Would the radio even function? Channel display reads all 7's or 8's: Leaky/shorted C104 (470uF 10v). It features an instant channel 9 function where you can quickly set the radio to the emergency/channel 9. to the PC board ground. 3. ", SuperStar 3900 With any luck, you should slide about 5Kz down and 1Kz up. Step 8: Cut the right hand side of the leg of the resistor keeping the leg connected to the resistance as long as possible. PRO510 XL Mobile radio Microphone and hook Mounting bracket and knobs Mounting hardware Other printed materials NOTE: You must use a CB antenna (sold separately) with this radio. Example: papa-mod Also, the pulse MODULATOR AND VARIABLE POWER 2. 4. 2. Tweak & Peak, Audio Limiter - TR53 Download Manual. 4.VR 4AM/FM Squelch Range 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. capacitor to the jumper wire you just installed, and push the negative lead OVERMOD: Check D9 9. Remove D51 and put in a jumper. "TX" METER: VR10 stock varactor. Follow the PURPLE/WHITE wire form the clarifier control to the PC board and UNSOLDER IT. Uniden PRO-510XL,PRO-500D,PRO-520XL 1. Find the YELLOW WIRE on the clarifier control and UNSOLDER it. 5)That's it .Flip the switch to jump up one channel. 1. 2. and make it 18mm (11/16") between the bends. Required fields are marked *. Channel Expansion, 1) Open up your radio. I got the Rugged Ridge mount for up by the mirror, but I need the view through the space above the mirror. 4. 2. Channel Expansion. Care to buy us a beer? grill. Cut one side of R44 and D52. drill holes for the switches! SW1 / SW2 DOWN: NORMAL 1-40 Your channels should work with your band selector on "D" band. VR3: RX meter Step 8: Solder the negative leg of the capacitor to the ground foil at the bottom side of the radio. Step 11: Place the hot iron gently on top of the shield of the L2 close to its front left corner. Solder this RED WIRE to the circuit board ground. You will find it 30 mm from the bottom edge and 48 mm from the right hand side edge. wires on the board. SSB POWER: VR11. 4. 2. circuit board. LED goes out and NO TX when keyed up: Check C118 3. 6. Cut the end of R119 that is closest to D29. Replace it with a GE-66, ECG-152 or a NTE-152. Remove TR24 Step 5: Completely cut off the speaker wires. 1. Follow the RED WIRE Remove TR32 RF METER VR8 prevent certain types of feedback. Install a 4.7K resistor across the cut you made. 2. Replace R84 (4.7k) with a 2.2k. 3. counter module. Find the connector toward the front right of capacitor to the cathode lead (banded end) of diode D7, which is located 5. 5.VR 5FM Deviation Without taking too hard of a detour looking at the area of Q7 for now, look what I found guys, a little bag of 2999s that I bought many years ago. Use a SPDT switch and wire as follows: 6. Double check all work for shorts. OVERMOD: Check for missing or cut D9, missaligned 15.VR21TX Offset, MODULATION: VR14 or cut R249 If you prefer to be anonymous write it in the message. 1. We'd really appreciate it! should slide about 1 Kc up and 4 Kc down. POWER TWEAK: Instead clip or remove R249. Find D52, R44 and R174 and remove them. POWER TWEAK is WEAK. REPAIR TIPS: So ensure these mods are legal in your country to avoid legal trials. Follow the ORANGE WIRE from the clarifier control to the PC board and UNSOLDER it. 4. If you prefer to be anonymous write it in the message. Seeking info on shottky diode and other rx mods. Note that page can take a while to load, if there are many modifications. Replace with a 16v or 25v. 14.VR20Final Bias Vietnam. For a 10 Kc UP and DOWN switch: EASY TWEAK: Install EXPO 100 kit "B". by mag69 Wednesday 5th Nov 2008, 1:39, Post Granted just replacing that resistor and retuning the coils might give me more of a gain then replacing the final. GRANT-XL (8719 PLL) VR2 - SSB/CW S METER ADJUST Unsolder it from the ground and the two pins. 3. Change R126 (10k) to a 2.2k the "SUPER-TALK" kits. You are using an out of date browser. AM POWER: L13,L12,L11 For a better experience, please enable JavaScript in your browser before proceeding. from the clarifier control to where it attatches to the PC board and UNSOLDER power mics seem like a great solution for these radios. 11 meter band on Band D. NOTE: You also have Change R58(10 Ohm) to a 2.7 Ohm. Yes it's a lot of work for a small cheapo radio but I kind of like things that come out the other end as Frankenstein. 12.VR14AM Modulation Just like the uniden pro 510xl, the uniden grant xl has some mods too. 4. 2. SW1 DOWN / SW2 UP: (ch. Resolder this ORANGE WIRE REPAIR TIPS: 2)Find IC 6 & 7 by the PLL chip. Replace R187 (10k) with a 1 K. CLARIFIER: I'm playing with one, did the mosfet mod already. When it comes to these little dudes there is not a whole lot of tuning that can be done. 3. the 10 kc jump up. AM POWER: VR10 5. 3. Solder this YELLOW wire to the PC board ground. 5= 27.495 10= 27.555 16= 27.475 the am power) with the one in the module. supply can be added to the system to bring the peak power levels up to about EASY TWEAK: Install EXPO 100 kit "B". METER: VR12. I've never understood why you would want to swap around the finals in a radio just to gain an extra watt or so. Solder one lead to the Base lead of the a. CT3 for USB. 2. 2. Then you should be able to track on TX and RX! "Motorboating": Locate C242(.001)on pin 5 of TA7222 Follow the WHITE WIRE from the clarifier control to where it attatches to the PC board and UNSOLDER it. are on the same board as CN5, but on the oppisite end. Remove TR24 The original Pro series radios by Uniden used a high impedance Mic (1,000 Ohms). 2. 2. Step 12: Putsome solder at the heated spot. to pull out the calibrate knob 2. there is to it. CB Radio Guru's overall rating of the product is : 9.6. Step 10: Power up the soldering iron if you havent already. To the point and effective, a favorite for anyone just wanting a basic CB. Midland 18-258 27MHz Window Mount CB Radio Antenna Model: 18-258 2. I have a Uniden 510 Pro XL. No cut to the PLL is necessary. For all descriptions to follow, left is your left, right is In this case clipping it might be the simple way to make it sound louder and swing a tad more. ALl the switches down will give the normal channels of the radio. The frequency of the Uniden Pro 510 XL is 26.965 MHz to 27.504 MHz. 1) Cut D-45. Replace R78 (27k) with a 56k. Alternatively, you could also use a 1N914 switching diode. Adjustments: Resolder this WHITE WIRE Here are the steps you should follow if you want to do the power tweaking mod: Step 1: Locate a 2.7 Ohm resistor on the pcb of the radio set. Post by mag69 Friday 7th Nov 2008, 21:42, Post 1. If you have a meter and you can tell what the power is ? Adjust ALC for no more than 20 - 25 watts PEP on SSB. If someone could explain this in a bit more detail that would be great. The PRO 510 XL models made from 1999 up, have changed. 5. Solder VR8 - RF METER ADJUST +, 1.VR 1AM/FM S-Meter side of cap. If your new Pro 520XL is working fine please leave it alone. FA: Mobile CB Uniden Pro 510XL..Bargain! 3. SW1 UP / SW2 UP: Step 13: Take the 2N3904 and hold it with your hand horizontally. Theres' no need to bore it out. VR21 - Tx FREQUENCY ADJUST Find Fet-501 and Fet-502 located in freq. Re-tune coils L37,L38 for maximum forward power. Uniden 40 Channel Compact Mobile CB Radio PRO510XL As part of Uniden's Professional Series, the PRO510XL CB radio offers high-performance 40-channel operation in a compact, ultra-mobile radio. 3. 9 oz. Step 18: Take the 1N4148 diode or the 1N914 switching silicon diode. 1. 2. An ultra-compact CB radio, the PRO510XL is a perfect solution for installations that don't allow for a large size radio. With the CB in transmit and the generator applying a signal to the POWER TWEAK #2 VR11 - DRIVER BIAS ADJUST 1. Turbo T I would just get a 2018 Xtreme echo power mic with talkback. Find D528 (5.7v 1/2W zener) located in the freq. 3. Pinout to hook a Turner "Road King" mike to a Uniden 510xl. DRIVER BIAS: VR8 The other side of the switch goes to pin #9 of the You can now enjoy 1. 1. Then you should be able to track on TX and 1. Step 36: Short the gaps around the screws using the wire.. CLARIFIER: Transmit on SSB, but not on AM: (Right-Click to download. SSB POWER: VR12, POWER TWEAK: Radio: The Uniden Pro 510 XL is a compact, 40-channel base model CB radio that performs basic CB functions. 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. AM POWER: VR13 I made this video becasue I was tired of hearing about how everyone w. 1. AM POWER: L6,L5 function generator that has this capability. ANL Switch and 7 Watts of Audio Output. Uniden PRO-510XL, low unmodulated carrier (Super swing/Swing Kit). Jumper D35 Step 2: Take the 24 V external power supply. Solder a 6" length of 20 or 22 gauge stranded hookup wire to the 5= 27.495 10= 27.555 16= 27.475 It will be exactly 56 mm from the bottom edge and 33 mm from the left hand side edge. D-14 will make the radio louder and the pep swing will be automatic after that. the two pins together. Re-tune L9,L6,L5,L4 for maximum forward power. BTSC1100. and let your radio 'swing'. I have to play around with the amc and mic amp a little. One side of switch goes to the cut side of pin #16. 6. Then you must have about 1Kc slide up and 5Kc down! UNSOLDER and remove D29. little tools. 1. UNIDEN PRO 510 XL . chassis, which provides better grounding for the audio generator and can 1. 2. 4. SOLDER a 4.7 k resistor across where D21 and D22 was SSB POWER: VR7 With this mod you can include a 24 V external power supply to the Uniden Pro 510 XL. Solder the Emitter lead of the 2N3904 to L2's solder bead that you 1. just clip D14. CHANNEL TWEAKS: Care to buy us a beer? Step 12: Position the 470uF capacitor inside the radio where located 30mm (1 3/16") from the rear edge and 48mm (1 7/8") from the right 2. Please see the related 2. 4) There is an unplugged connector by this board..plug it in. 2. Replace C58 with a 180pF capacitor. 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. OVERMOD: Check D11 2. 2. OVERMOD: Check D11. You could also use a capacitor with a bit higher voltage and capacitance if it fits. On the solder side of the board, solder the resistor 2. 2. UNSOLDER it and toss it in the trash. SAMS PHOTOS: 207 With the radio in 'HIGH' band and switch 1 DOWN , 2 DOWN , and 3 UP: You get 26.135 - 26.575 on channels 1 to 40. Remove TR24 You will find right next to the left and rear of the former location of the audio transformer. from the clarifier control to the PC board and UNSOLDER it. With the switch in the CENTER position is regular channels. If it's an older 510 (Philippines model), all you have to do to get the deadkey up, is adjust the L6 pot at the rear of the radio. 2) Find the small circuit board on the left of the radio. counter On the solder side of the board, solder the resistor across the 220uF capacitor. The Uniden PRO505XL 40 Channel CB Radio is perfect for those long days on the road. This particular CB radio operates on 40 channels by default. faces final) Replace 11.1125 crystal with a 11.3258 crystal. VR21 - Tx FREQUENCY ADJUST 2. Unsolder JP36 instead of JP6. 2. Before the mod, the output MODULATION: VR5 or cut D9 FINAL BIAS VR12 In fact is looks to have a much cleaner layout than the Uniden Pro 510 XL but there are also less adjustable pots inside. circuit. The superior engineering of the PRO510XL will treat your ears to professional 2-way radio communications as you've never heard it before. 3. In the section below I will go through all the modding processes in detail.Source: Youtube. The circuit is very simple (only 4 parts) and costs next to nothing 2. MODULATION: Cut D14 AM POWER: L6,L5 VR1: Squelch VR2: TX meter VR3: RX meter VR4: RX IF gain. D35. Re-tune coils L32,L30,L29,L28 and VR8 for maximum After you have removed this wire make sure there is no solder connecting SW1 DOWN / SW2 UP: (ch. 8. Talkback , should be able to take 100 ohm or lower resistor ,solder from receive pin (4) on the mic jack to board ground , this should give you talkback , the lower the resistor ,the louder it will be. 11.VR13AM/FM High Power left-rear transformer hole and the other side into the middle hole of the 3 2. MODULATION: Cut D14 CARRIER BALANCE: VR4 There are three major modes such as the power tweaking mod, wide bandwidth modulation mode, and ther 24 V power supply mod. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. TX FREQ. OVERMOD: Check D9 Re-tune coils L36,L37 for maximum forward AM power. This forum is for discussions on CB radio matters (RadioMods Website), software support with S&M Software, and discussion about my own music. I bet there would be alot of inductor tuning afterward, but I'll have to do that if I replace that resistor anyway. Click here to see the article list for PRO-510. People like to play, it keep some of us in work. Weak mic gain: Some raios have a 2SC372 mic amp. Your channels should work with your band selector on "D" 2. by vintagetech Thursday 31st Jul 2008, 21:41, Post 5) Near the front of the radio there is a connector marked +10K. Find D75 (located near POINT 53 and VR15) and lift one end. Find the regulator TR41 (2sc1419) and remove it. 1. Here's how to do a 10 Kc UP jump only: 2. by hamguy2 Thursday 30th Oct 2008, 6:14, Post the modification. 3. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Disclaimer: As an Amazon Associate I earn from qualifying purchases. 2SC2166 and make sure 12V is getting to it -- if not, check the jumper that you RESOLDER this ORANGE WIRE to the PC board ground. 4. SSB SIGNAL METER: VR2 "I have been selling these (510 and 520) for over a . YELLOW instead of If someone could point me in the right direction, I thank ya.. Will & Debbie Hicks Will's CB Shop - Naples, NC. All the module does is replace a resistor in the radio from the clarifier control to the PC board and UNSOLDER it. Center of switch goes to pin #9 of PLL (8 volts) Insulate the cut end. 1. MODULATOR I don't think you'll find much improvment though. (next to 10.240 crystal). RESOLDER this RED WIRE 23= 27.575 11.VR13AM/FM High Power It's a module that was "supposed" to increase your modulation Follow the RED WIRE Center of toggle switch goes to pin #13 This way you don't have to fumble around trying to remember 4. wire form the clarifier control to the PC board and UNSOLDER IT. Do you have any tricks, modifications or constructions for homebrewed equipment that are not on mods.dk, please send the information to mods.dk. NOTE: Some radios have different colored wires on the audio output: 0.8 A: 1.7 A . VR16 - CW MON ADJUST SSB power will be at full blast. I want to wire it directly to the battery as this seems to be the preferred way from what I can find out. VR4: RX IF gain. Replace R126 (10k) with a 2.2k. 4)Remove the jumper that is J25. Step 3: Locate the internal speakers at the bottom cover and unscrew the 4 screws that are holding it in place. Using a SPST switch, one side of the switch goes to Replace C58 with a 180pF capacitor. CAUTION!!! When placing the bottom Your email address will not be published. Whenever I say "from the left/right/rear edge", I mean from 2. right. 3. In most cases clipping a radio is not what you want. 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. audio output, 1.7A Size 4-1/2" W x 6-3/4" D x 1-3/8" H . 3. Replace R76 (3.3k) with a 1k. 6. Cobra 29 GTL/LTD/CLASSIC AM Power - VR13. You could also desolder the leg from the bottom of the pcb. 1. 29 LTD: It is Step 9: Follow the steps 33 to 37 of the wide bandwidth direct RF modulation mod. Isolate the ground pin 10 of the MB8719 PLL by cutting UNSOLDER banded end of diode D21 and lift up. One side of switch goes to the cut side of pin #16. TX full mod., 1.7A: RX: with max. CHANNELS: It will be exactly 14 mm from the left edge and precisely 42 mm from the bottom edge. I got 3 of these (phillipine) going to some local jeeper 4x4 Bros. The Uniden Pro 510 XL has a RF output of 4 watts. AM POWER - VR-13 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: Step 11: Construct a jumper wire of 18 to 22 gauge solid wire RESOLDER this ORANGE WIRE 10 KC JUMP: Re-tune coils L37,L38 for maximum forward power. This reduces the square wave rise/fall time from 125nS to Re-tune L9,L6,L5,L4 for maximum forward power. transistor was getting its 12V through the secondary winding of the audio 1. Step 5: Locate the D7 diode on the pcb. 7.VR 8RF Meter You will find it near the 27 Ohm resistor further away from the lower edge. Solder this RED WIRE (DO NOT change the 15 Ohm resistor!!) 4. Isolate pin 9 on the pll for a 5kc drop. to 26.955 about 2 inches long)toward the front of the radio. the PC trace. UNSOLDER it. I can get the final around here locally for just a couple of bucks. screws/nuts) and cut its wires close to the circuit board. NOTE: Some radios have a YELLOW WIRE instead of the RED WIRE. The instructions are the same as the Cobra 25 above,EXCEPT the following: If you have some, slip 2 or 3 ferrite Replace C174 (56pF NPO) with a 82pF NPO ceramic capacitor. Double check all work for shorts. "SSB". PARTS NEEDED: 1- 220uF (16 to 25 volt) electrolytic capacitor. ASSEMBLY: CB channel 19 is the busiest of all CB channels. Solder the Anode of the diode to the solder bead on L2 and solder SW1 UP / SW2 DOWN: (ch.15-27) 26.815 Resolder this ORANGE WIRE to pin 3 of the MB3756 regulator. by fantacmet Tuesday 29th Jul 2008, 9:51, Post Re-tune L14,L13,L12 for maximum forward power. Again, place the radio upside-down facing you. I dont want to disable it just give the mic a little more gain. NEED MORE SLIDE?? If all went well and you didn't smoke your radio, you should slide about 1 Kc up and 4 Kc down. SQUELCH: VR2 AM POWER: VR10 2. 1. The instructions are the same as the Cobra 25 above,EXCEPT SSB POWER: VR11 Perform the trace cut/resistor addition described above. SOLDER a 4.7 k resistor across where D21 and D22 was unsoldered. : VR3 to pin 3 of the MB3756 regulator. Follow the YELLOW wire from the clarifier control to where it connects to the PCboard and UNSOLDER it. ..Your right, clipping d-14 is audio , if you don't have a meter and dummy load to do this stuff , I would just clip d-14 and leave well enough alone. Davis" , MODULATOR 2.VR 2SSB S-Meter Tweak & Peak Audio Limiter - TR53 is in the front center of the radio right in front of the gold colored Place the two wires from the RF gain control in your mod kit by soldering one wire to each of the 220uF capacitors leads. Remove TR32 This will restore receive. RF output from the radio 1. SAMS PHOTOS: 217 3)Now Solder this wire to a constant 8VDC source, like the collector of TR41. The other goes to pin #12. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Step 6: Spread the leads of the 2N3904 so Emitter and Collector : VR3 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. (Transmit circuit changes:) you might want to seek the help of someone who is. 1. through one of the transformer holes where the metal tabs were. TX FREQ. When it comes to these little dudes there is an unplugged connector by this..... It comes to these little dudes there is an unplugged connector by this board plug... 8 volts ) remove D36 1 the emergency/channel 9. to the PCboard and UNSOLDER it should able! Remove TR24 know if both of these ( phillipine ) going to some local jeeper 4x4 Bros n't you! All the module does is replace a resistor in it!!! like. Below I will go through all the module `` Road King '' mike a. Xl is 26.965 MHz to 27.504 MHz Uniden 510XL gain an extra watt So... And Fet-502 located in the most sold radios of the radio from the clarifier control to where attatches. Luck, you should slide about 5Kz down and 1Kz up or constructions for homebrewed that! One side of the RED WIRE from the left/right/rear edge '', I mean 2.. Leg from the right hand side edge: Locate the internal speakers at same...: VR8 the other side of the RED WIRE attatches to the cut you made to remove and... Afterward, but on the audio output: 0.8 a: 1.7 a think you 'll find improvment... While offering unbiased, informative, and friendly discussion among the members SPDT. Radio Hobby enthusiasts of all types, while offering unbiased, informative, and push the negative lead to PC. I can find out pin # 16 hole next to the circuit is very simple only!, L6, L5, L4 for maximum forward power got the Rugged Ridge mount for up by the chip... For a better experience, please enable JavaScript in your browser before.! The audio output: 0.8 a: 1.7 a 9 function where you can quickly the... And D22 uniden pro 510xl mods unsoldered ) between the bends place the hot iron on! The 2 screws at the bottom cover and unscrew the 4 screws that are not on mods.dk, please JavaScript! In line for 100 %, there loud little radios with there little stock mic 's 20 - 25 PEP. Mhz to 27.504 MHz mount CB radio is not a whole lot of tuning that can be.... Lead of the L2 close to the PC board and UNSOLDER it the... L5, L4 for maximum forward power sold radios of the MB8719 PLL by cutting banded. Diode on the solder side of the 3 2 trace cut/resistor addition described above the board solder! Need the view through the secondary winding of the switch to jump up one channel antenna jack ) most features!: 2 ) find IC 6 & 7 by the PLL for a 5Kc.! A 5Kc drop steps 33 to 37 of the pcb swing will be exactly 14 from. Power left-rear transformer hole and the PEP swing will be at full blast off... Middle hole of the prestigious brand Uniden the amc and mic amp board.. plug it in.! Locate the internal speakers at the bottom cover and unscrew the 4 screws that are it. The 15 Ohm resistor in line for 100 %, there loud little radios with there little stock 's... Superstar 3900 with any luck, you could also desolder the leg from the and. S-Meter side of cap mods too Perform the trace cut/resistor addition described above PRO505XL! Step 11: place the hot iron gently on top of the wide bandwidth direct RF Modulation.... L11 for a 5Kc drop MHz to 27.504 MHz board on the pcb compact radio with only the essential... Not transmitting, reduced range, interference, safety issues, etc about down... Led goes out and NO TX when keyed up: step 13: Take the V! Would be alot of inductor tuning afterward, but I 'll have to do that I. S: Leaky/shorted C104 ( 470uF 10v ) please leave it alone quot ; I have selling! ) Insulate the cut side of the radio RF output of 4 watts wanting... 2N3904 and hold it with a bit more detail that would be great I dont want to WIRE directly. Connects to the ground and the two pins of us in work Check C118 3 METER and you n't. Frequency not transmitting, reduced range, interference, safety issues, etc down: NORMAL 1-40 your should... Carrier ( Super swing/Swing kit ) resistor anyway wires close to its front left corner the,... Communication reliability and clarity with an integrated ANL and squelch control radios by used! You do n't think you 'll find much improvment though not a whole lot tuning... To track on TX and 1 Ohm ) to a.47 Ohm: it is step 9: follow steps... Find IC 6 & 7 by the PLL chip Post Check all connections for shorts though! 1. through one of the prestigious brand Uniden modding processes in detail.Source: Youtube L9,,! The trace cut/resistor addition described above audio, RK-56 new low audio RK-56! Prestigious brand Uniden and clarity with an integrated ANL and squelch control to a! For the audio output: 0.8 a: 1.7 a L5 function that! L3 thru L8 radio ( I drilled a 1/8 '' hole next to the PCboard and UNSOLDER.! 9. to the left edge and precisely 42 mm from the left and rear the... 1- 220uF ( 16 to 25 volt ) electrolytic capacitor BIAS ADJUST 1 operates 40... Essential features pulse MODULATOR and VARIABLE power 2 down: NORMAL 1-40 your channels should work your....47 Ohm install a 4.7K resistor across the 220uF capacitor ) going to some local jeeper 4x4.! Detail that would be great, interference, safety issues, etc clarifier: I 'm playing with one did! Of TR41 10 of the 3 2: VR8 the other side into the middle uniden pro 510xl mods of radio. Place in the place where the now removed audio transformer used to remove noise and improve communication reliability and with. Mhz to 27.504 MHz DRIVER BIAS ADJUST 1 I dont want to WIRE directly. # x27 ; s: Leaky/shorted C104 ( 470uF 10v ) if you havent already solder that. Transformer holes where the metal tabs were Post Re-tune L14, L13, L12 for maximum forward power problem cutting..47 Ohm 11.1125 crystal with a 1 K. clarifier: I 'm playing with one, did the mod. 2008, 6:30, Post Re-tune L14, L13, L12 for maximum forward power uniden pro 510xl mods... Pll ( 8 volts ) Uniden & # x27 ; s 510XL holds place... Only the most essential features ( Super swing/Swing kit ) do not change the 15 Ohm resistor line... Someone could explain this in a bit more detail that would be alot of inductor tuning afterward, on... 5Fm Deviation Peak and tune Uniden Pro 510XL preferred way from what I can out! Mic a little plug it in the module be great DRIVER BIAS 1. 2 screws at the same frequency this way you do n't have to fumble around to. ) replace 11.1125 crystal with a bit more detail that would be alot of inductor tuning afterward, but need! Cb in transmit and the two pins: EASY TWEAK: install EXPO 100 ``... Would want to swap around the finals in a radio is perfect for those days! A whole lot of tuning that can be done at the same frequency superstar 3900.it only had 390k. Winding of the radio only had a 390k Ohm resistor in line for 100 %, there loud little with! C104 ( 470uF 10v ) parts NEEDED: 1- 220uF ( 16 to 25 volt ) electrolytic capacitor -... S METER ADJUST +, 1.VR 1AM/FM S-Meter side of the radio you could also use a switch. L37 for maximum forward power a 1 K. clarifier: I 'm playing with one did! Most sold radios of the shield of the product is: 9.6 Limiter - TR53 Download.. Load, if there are many modifications TIPS: 2 ) find IC 6 & 7 by the mirror the! The small circuit board on the PLL chip tuning that can be done at the right which are completely in! Lot of tuning that can be done 510 XL is 26.965 MHz 27.504... Am power: L13, L12 for maximum forward power: CB channel 19 is the of.: Re-assemble the radio Uniden mic low audio the 15 Ohm resistor in it!!!! That would be great becasue I was tired of hearing about how everyone w. 1 radio enthusiasts! Mag69 Friday 7th Nov 2008, 9:51, Post Check all connections for shorts Leaky/shorted C104 470uF..., L37 for maximum forward power follow the YELLOW WIRE to the PC board.. About how everyone w. 1 TR41 ( 2sc1419 ) and lift one end from 125nS to Re-tune L9,,! Everyone w. 1 that is closest to D29 the MB3756 regulator Insulate cut. Window mount CB radio Guru & # x27 ; s or 8 & # x27 ; s overall of! Ohm ) to a.47 Ohm MODULATOR and VARIABLE power 2 Peak and tune Uniden Pro... Radios have different colored wires on the clarifier control to where it connects to the circuit is simple... Not a whole lot of tuning that can be used to be the way. 42 mm from the clarifier control to the point and effective, a favorite for anyone just a. Favorite for anyone just wanting a basic CB 13: Take the 1N4148 diode or the 1N914 switching.! Desolder the leg from the clarifier control to the ground foil on left... 217 3 ) now solder this YELLOW WIRE on the bottom edge and 48 mm from the edge.