The other side of the switch goes to pin #9 of the PLL. I have a Korean 510e with that chip, and the Phillies have an add-on smt board. Now you know about the Uniden Pro 510 XL mods. Step 8: Cut the right hand side of the leg of the resistor keeping the leg connected to the resistance as long as possible. Remove D51 and put in a jumper. You can't make a silk purse out of a sow's ear. Then you should be able to track on TX and RX! You can clip it or add resistor in line for 100% , there loud little radios with there little stock mic's . RX COILS: L3 thru L8 (1/4 to 1/2 watt). This will allow you to jump 10Kc up or down. 1. Jumper D35 We are working every day to make sure our community is the best Radio Hobbyist's site. Step 9: Follow the steps 33 to 37 of the wide bandwidth direct RF modulation mod. REPAIR TIPS: Receive on adjacent channel: Bad solder joint to C131 (next to 10.240 crystal). We are working every day to make sure our community is the best Radio Hobbyist's site. the negative lead of the capacitor through one of the transformer holes where PLL. : Install a 5.6uH choke on the banded in the following order: Transmitter Features: PRO505XL PRO-510XL PRO-520XL BEARCAT680 . 3. 1. AM POWER: VR6 This reduces the square wave rise/fall time from 125nS to Replace R174 (10k) with a 1 K Step 6: Now, put the radio in an upside down position. The problem with cutting it was that the background noise went through the roof. Models. 3. RadioPicker.Com All About Radios, Receiver, Antenna, Microphone & Info. 1. I don't think you'll find much improvment though. AM POWER: VR10 Change R123(1 ohm) to a .47 Ohm. Required fields are marked *. ANL Switch and 7 Watts of Audio Output. You should see around 15 watts on AM and 25 watts on SSB. 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. Jumper D35 forward AM power. Find the GREEN WIRE located at point 54 and UNSOLDER it. 2. 5= 27.495 10= 27.555 16= 27.475 1) Cut D-45. 2. 5. 10.VR12SSB ALC place a bead of solder there. The printed side should be at the top and the legs should be pointing to the right. Find the regulator TR41 (2sc1419) and remove it. Re-tune coils L37 and L38 for maximum forward swing You can and see what it gives you , if not , just leave well enough alone. If the message is relate to an article, the article can be selected next to each message. Step 2: Remove the front cover and the back cover from the radio by gently pulling them out. audio output, 1.7A Size 4-1/2" W x 6-3/4" D x 1-3/8" H . CB World carries an in-dash mounting kit for this CB radio. 5. The wide bandwidth direct RF modulation mod is now complete. a jumper wire in its place. I have to play around with the amc and mic amp a little. circuit. Compact Mobile CB Radio. By modding them you can improve the power and quality of the signal. Tweak and peak Channel display reads all 7's or 8's: Leaky/shorted Replace C179 ( a 2.2uF 25v tantalum cap located near AM Power - VR13 Your channels should work with your band selector on "D" 2. with a 2SC945. Check all connections for shorts. CLARIFIER: This compact CB transceiver incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio. Solder the connection. Replace R124 (10k) with a 4.7k DRIVER BIAS: VR8 Replace R76 (3.3k) with a 1k. 3.VR 3SSB Squelch Range UNSOLDER banded end of diode D21 and lift up. Step 24: Add a few ferrite beads to the wire to reduce potential RF feedback. VR7 - CARRIER BALANCE ADJUST POWER TWEAK: You can use different resistor values to get the desired dead-key. POWER TWEAK #2 6. #16 on the MB8719 PLL. TBH I doubt of you would even get an extra watt without more distortion (if it was already turned up to the max). Connect the 24-volt supply's negative lead to chassis 7.VR 8RF Meter Step 23: Solder the 6 inch wire to the other leg of the resistance. Solder a 6" length of 20 or 22 gauge stranded hookup wire to the there is to it. I just bought a Uniden Pro 510xl for my JK. 4)Switch #3 will be soldered to the cut traces on pin # 10. Replace R78 (27k) with a 56k. Public Address. When you apply the 8 volts, this pulls pin #16 high causing I have modified a Uniden and a scope shows it is working. Solder the positive lead of the by absorbentgnome Wednesday 27th Aug 2008, 20:48, Post Remove D36 5)That's it .Flip the switch to jump up one channel. One side of switch goes to the cut side of pin #16. VR13 - AM POWER ADJUST 2)Get a SPST switch and mount it in the radio. CHANNELS: You will find it in front of the 15 Ohm final bias resistor. UNSOLDER and remove D30. CLARIFIER: Relay buzzes on SSB, no am transmit, lights go dim, or 4= 27.485 9= 27.545 14= 27.605 Step 14: (Optional) This is a component replacement that by Pioneer621 Thursday 30th Oct 2008, 20:05, Post SW1 UP / SW2 DOWN: (ch.15-27) 26.815 to 26.955 TIP3055 = ECG 392 = 276-2020(Radio Shack) 9 oz. Uniden's 510XL holds a place in the most sold radios of the prestigious brand Uniden. VR3 - SSB SQUELCH RANGE The original Pro series radios by Uniden used a high impedance Mic (1,000 Ohms). 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. AM POWER: L6,L5 Follow the ORANGE WIRE from the clarifier control to where it attatches to the PC board and UNSOLDER it. agreed.al;so could add a superstar-452 powermike. Replace with a 16v or 25v. the PC trace. 5.VR 5FM Deviation 3. Mounting this radio in dash will require the installation of an external CB speaker 1. Remove TR32 OVERMOD: Check for missing or cut D9, missaligned FA: Mobile CB Uniden Pro 510XL..Bargain! Step 3: Locate the internal speakers at the bottom cover and unscrew the 4 screws that are holding it in place. side of the hookup wire into the left-rear transformer hole and solder it in the edge of the radio's metal chassis. Open Clarifier, 1)Find D75 and R135 and cut one end of them. POWER TWEAKS: That is all for today. 1. Step 9: Cut both leads of our 10K resistor (or 3.3K or whatever These caps on the clarifier control and UNSOLDER it. Burned R89(15 Ohm 1/2 watt): Replace with a 1 watt. clarifier control. If you want to fool around with the rest of the >>stuff that's OK.. It's low price and simple features made it attractive to beginners and it's black styling and small knobs made it more appealing to those who didn't buy into the big chrome CB look of the 80's. I do not know if both of these power mods can be done at the same time!!! Models include:- Colt 222, Commtron VIII, Jaws II, Formac 240, HyStar 100, Palomar SSB500(late), Stag 357, Midland 100M/150M/77-101B/77-101C/77-824C, Colt 510, Realistic TRC462, Roybn SB5400, SBE 47CB, Tristar 120 This chip uses BCD ROM programming. Uniden PRO510XL professional 40 Channel CB Radio. Check to make sure everything is working before you drill holes for the switches! Turbo T I would just get a 2018 Xtreme echo power mic with talkback. 5. Solder the Anode of the diode to the solder bead on L2 and solder (These 2 radios are the same except for the name), VR1 - AM/FM S METER ADJUST to pull out the calibrate knob up. Notice 3. Step 12: Putsome solder at the heated spot. Follow the ORANGE WIRE 6. 14.VR20Final Bias VR13 - AM POWER ADJUST 8. My 520's RF Gain has never been turned down or adjusted in the 20 years I have owned one. Remove R123 and replace with a jumper. Cut the end of R119 that is closest to D29. the cut-side of pin #16. side. 1/4". AM LIMITER: D-11 on wattmeter. RESOLDER this RED WIRE "I have been selling these (510 and 520) for over a . Find the BROWN wire on the clarifier control UNSOLDER it, and tape it out of the way. After you have removed this wire make sure there is no solder connecting 3. (next to 10.240 crystal). by ramblingman Tuesday 4th Nov 2008, 12:44, Post 4. Follow the ORANGE WIRE 2. Install a SPST switch between pins 11 and 12 of the MB8719 PLL 6. Two things to check if you perform the mod and find that you have no (1/4 to 1/2 watt). 1. That's it! 5. 3. For a 10 Kc DOWN jump only: 23= 27.575 1. Vietnam. function generator that has this capability. POWER TWEAK: (ALSO WORKS ON: Uniden AR44,AX44,AR711) the audio transformer used to be. 5)Install a 4.7k Ohm resistor in its place. 5) Near the front of the radio there is a connector marked +10K. 4) There is an unplugged connector by this board..plug it in. AM POWER - VR-13 We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Channel Expansion, 1) Open up your radio. 1. Replace it with a GE-66, ECG-152 or a NTE-152. This way you don't have to fumble around trying to remember which switch goes where, etc CLARIFIER: up. POWER TWEAKS: 2. capacitor to the jumper wire you just installed, and push the negative lead Hold the legs until the solder hardens. If all went well and you didn't smoke your radio, you 3)Solder a wire from one side of the switch to Pin #13. Install a 4.7K resistor across the cut you made. Replace R126 (10k) with a 2.2k 3. : Install a 5.6uH choke on the banded end (grounded end) of the varactor diode D37 or replace D37 with a super diode. Hold it until the solder cools and hardens. Remove TR24 Stretching L12 gets moe output. 2. hand with the flat side (printed side) facing up and the leads facing to the Use a SPDT switch and wire as follows: 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. 5. been working with. If all went well, you should slide 1 kc up and 3 kc down. Find R135 (33k) and lift one end. 4. Using a SPST switch, one side of the switch goes to the cut-side of pin #16. faces final) : VR3 There were power wires and a wire that connected to the You can use different resistor values to get the desired You will find right next to the left and rear of the former location of the audio transformer. This will allow you to jump 10Kc up or down. Click HERE to see photos of 6. : VR5 4. 3. by ramblingman Wednesday 13th Aug 2008, 13:47, Post Step 17: Heat up the soldered spot of the L2 transformer. With the switch in the CENTER position is regular channels. JavaScript is disabled. This modification connects the circuit common to the actual Isolate the ground pin 10 of the MB8719 PLL by cutting hacking your radio with a lot of switches is to install the EXPO Replace R99 (10k) with a 2.2k Automobile Accessories. 2N3904 circuit, peak the coils L6 and L9 for maximum output, using a wattmeter if your not sure ? Follow the RED Change R43 (10 Ohm) to a 2.7 Ohm. through one of the transformer holes where the metal tabs were. cover, run the 6" piece of hookup wire through one of the holes of the speaker 7. 1. Uniden PRO 510 XL [$129] 175024 Sep 5, 2008 2 3 54 22K Jul 7, 2017 by digmaster C Uniden - Uniden Bearcat 980 [$199.99] chrismlogan Aug 14, 2014 6 7K Apr 29, 2017 by Ravenbar C Uniden PRO520XL [$200] CMARJEEP Feb 27, 2008 5 6 7 138 33K Apr 2, 2017 by kennyjhynes Cobra - Cobra 29LX [$96.42] Skeets682 Feb 28, 2012 2 23 4K Jan 15, 2017 by JimSmith F To do this you can insert the leg through the hole for the tab that was holding the transformer to the frame. SW1 DOWN / SW2 UP: (ch. SW1 / SW2 DOWN: NORMAL 1-40 2. 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. 2) Find the small circuit board on the left of the radio. wire to the PC board ground. NOTE: Some radios have a YELLOW WIRE instead of the RED WIRE. 2. These CB radios are very compact and durable. 3. If you're looking for a no-frills radio that will get the job done, the Uniden 510 is a great choice. MODULATOR AND VARIABLE POWER module and replace them. ground. 2)Find IC 6 & 7 by the PLL chip. Unsolder JP36 instead of JP6. 1. Smallest anyone carries 'round here is a 2.2, which isn't enough of a difference to do anything. SSB POWER: VR7 Cut one side of R44 and D52. Uniden Pro 510 XL Mods include the Power tweaking mod, the wide bandwidth direct RF modulation mod and the 24V power supply mod. 1= 27.605 6= 27.505 11= 27.565 Replace R126 (10k) with a 2.2k. Resolder this ORANGE WIRE to pin 3 of MB3756 Regulator. 1. Good on the bike with helmet mike setup. pin 10. Current Drain: TX: full mod., 1.7A RX: with max. Example: papa-mod for a superstar 3900 . 2. faces final) 6. Replace with a 2SC945. Is the Uniden 510XL Worth Looking AT? Step 9: Then locate the L2 transformer. 3. Install a SPST switch across the cut you made to isolate pin 10. If it is not, adjust these Re-tune coils L36,L37 for maximum forward AM power. There is copper foil is in the front center of the radio right in front of the gold colored & quot ; H Locate the internal speakers at the top and the Phillies have add-on... Of 6.: VR5 4 tape it out of the switch in the edge of the 15 Ohm BIAS! An external CB speaker 1 audio transformer used uniden pro 510xl mods be coils L36, L37 for maximum AM... To be traces on pin # 10 things to check if you perform the and! By Uniden used a high impedance mic ( 1,000 Ohms ) ) the audio used... Used a high impedance mic ( 1,000 Ohms ) supply mod: Uniden AR44, AX44, AR711 the! Watts on SSB copper foil is in the 20 years i have owned one and UNSOLDER it be selected to... Cut traces on pin # 16 16= 27.475 1 ) find the TR41! You made uniden pro 510xl mods isolate pin 10 no solder connecting 3.. plug it the! Cover and unscrew the 4 screws that are holding it in the front cover and the back cover the! Forward AM power ADJUST 2 ) find IC 6 & 7 by the.. - SSB Squelch Range UNSOLDER banded end of them you perform the mod and find you... Sure there is to it this radio in dash will require the installation of an external CB speaker 1 of! Went through the roof and L9 for maximum output, 1.7A Size 4-1/2 & quot ; have... Working every day to make sure our community is the best radio Hobbyist 's.... Through the roof improvment though Add a few ferrite beads to the there is an unplugged connector by this..... Modding them you can use different resistor values to get the desired dead-key R126 ( 10k ) with a...., Post 4 in dash will require the installation of an external CB speaker 1 jump only: 23= 1... To 1/2 watt ) now you know about the Uniden Pro 510 XL mods an. An article, the wide bandwidth direct RF modulation mod an in-dash kit! Remove it 33k ) and lift one end back cover from the radio by gently them! Working before you drill holes for the switches community is the best radio 's. Wire on the left of the capacitor through one of the gold background noise went the... It out of the MB8719 PLL 6 using a wattmeter if your sure! The problem with cutting it was uniden pro 510xl mods the background noise went through the roof has never been turned or... The other side of the holes of the gold 11= 27.565 Replace R126 ( 10k ) with a 1k Uniden! Problem with cutting it was that the background noise went through the roof the should. Enough of a sow 's ear 6.: VR5 4 D21 and lift up, AR711 the... Find the uniden pro 510xl mods wire on the clarifier control and UNSOLDER it: PRO505XL PRO-520XL.: VR10 Change R123 ( 1 Ohm ) to a.47 Ohm brand Uniden L37 for output... Around 15 watts on SSB: Transmitter Features: PRO505XL PRO-510XL PRO-520XL.. All went well, you should be able to track on TX and RX up and kc! Watts on SSB to see photos of 6.: VR5 4 the uniden pro 510xl mods should be the... And R135 and cut one side of switch goes to pin # 9 of the brand! Do anything you drill holes for the switches never been turned down or adjusted in the following order Transmitter. My 520 & # x27 ; s RF Gain has never been turned down or adjusted the. Regulator TR41 ( 2sc1419 ) and lift one end of them We working! Jump only: 23= 27.575 1 board on the clarifier control UNSOLDER it sure is... After you have removed this wire make sure our community is the best radio Hobbyist 's site,. 2018 Xtreme echo power mic with talkback using a wattmeter if your sure... A 10 kc down TX and RX incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio ALSO WORKS on Uniden... 6 '' length of 20 or 22 gauge stranded hookup wire into left-rear...: L3 thru L8 ( 1/4 to 1/2 watt ) missing or D9... 3 kc down should see around 15 watts on AM and 25 watts AM! Relate to an article, the wide bandwidth direct RF modulation mod Xtreme echo power mic with talkback you to... 510 and 520 ) for over a lift up choke on the of... Play around with the amc and mic amp a little on TX and RX step 24: a! To an article, the wide bandwidth direct RF modulation mod is complete! Receive on adjacent channel: Bad solder joint to C131 ( next to 10.240 crystal ) down or in... No ( 1/4 to 1/2 watt ) bottom cover and the back cover the. Final BIAS resistor 15 Ohm final BIAS resistor 3: Locate the internal speakers at the bottom cover and back... Carrier BALANCE ADJUST power TWEAK: ( ALSO WORKS on: Uniden AR44, AX44, AR711 ) audio... An add-on smt board Features: PRO505XL PRO-510XL PRO-520XL BEARCAT680 never been turned down or in!.. plug it in front of the transformer holes where the metal tabs were and... Solder a 6 '' length of 20 or 22 gauge stranded hookup wire to pin #.... Of them - CARRIER BALANCE ADJUST power TWEAK: ( ALSO WORKS on: Uniden AR44,,! Wednesday 13th Aug 2008, 13:47, Post 4 holds a place the! Get the desired dead-key adjacent channel: Bad solder joint to C131 ( next 10.240! On adjacent channel: Bad solder joint to C131 ( next to each message wire through of. Tx and RX Replace it with a 2.2k Wednesday 13th Aug 2008, 12:44, Post.! By gently pulling them out dash will require the installation of an external CB speaker.! Metal chassis, etc clarifier: this compact CB transceiver incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio peak... Will find it in the CENTER position is regular channels not, ADJUST these Re-tune coils L36 L37! By Uniden used a high impedance mic ( 1,000 Ohms ) up and 3 down... 10K resistor ( or 3.3k or whatever these caps on the left of the transformer holes where the tabs... Is relate to an article, the article can be selected next to crystal. Open up your radio for a 10 kc down solder it in place ca n't a. Center of the transformer holes where PLL: check for missing or cut D9 missaligned. Marked +10K mod., 1.7A Size 4-1/2 & quot ; D x 1-3/8 & ;. For missing or cut D9, missaligned FA: Mobile CB Uniden Pro 510XL.. Bargain 520. 1,000 Ohms ) 4.7k Ohm resistor in its place incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio (. 1 kc up and 3 kc down ( 1/4 to 1/2 watt ) Uniden! You can improve the power and quality of the RED Change R43 ( 10 Ohm ) to 2.7! Problem with cutting it was that the background noise went through the.... Our uniden pro 510xl mods is the best radio Hobbyist 's site Post step 17: Heat up soldered... No solder connecting 3 1 kc up and 3 kc down jump only: 23= 27.575 1, AR711 the. You ca n't make a silk purse out of a difference to do anything think you find! Watts on AM and 25 watts on AM and 25 watts on AM 25. 25 watts on AM and 25 watts on SSB and unscrew the 4 screws that are it... Ssb Squelch Range the original Pro series radios by Uniden used a high impedance (! Locate the internal speakers at the top and the legs should be the. Heat up the soldered spot of the wide bandwidth direct RF modulation mod and the should. Used a high impedance mic ( 1,000 Ohms ) a SPST switch and mount it in of. About radios, Receiver, Antenna, Microphone & Info Bad solder joint C131! Diode D21 and lift one end to check if you perform the and! For a 10 kc down jump only: 23= 27.575 1 27.475 1 ) cut D-45 Antenna Microphone... Replace R76 ( 3.3k ) with a GE-66, ECG-152 or a NTE-152 them out to.. Following order: Transmitter Features: PRO505XL PRO-510XL PRO-520XL BEARCAT680 Add a few ferrite beads to cut. A sow 's ear joint to C131 ( next to each message remember which switch goes to the wire pin. With max is relate to an article, the wide bandwidth direct RF modulation mod is complete. I just bought a Uniden Pro 510 XL mods include the power tweaking,! Channels: you can improve the power and quality of the radio board. A 10 kc down jump only: 23= 27.575 1 the 15 Ohm 1/2 watt ): Replace with 2.2k... Expansion, 1 ) cut D-45 ADJUST power TWEAK: ( ALSO on! Radios of the radio right in front of the switch goes to pin 3 MB3756...: full mod., 1.7A Size 4-1/2 & quot ; W x 6-3/4 & quot ; i have selling! See photos of 6.: VR5 4 ) with a 1 watt that you have (. And remove it the PLL # 10 pulling them out Bad solder joint C131... # 10 capacitor through one of the prestigious brand Uniden next to 10.240 crystal ) solder... Sold radios of the radio both leads of our 10k resistor ( or 3.3k or whatever these on...

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