I bet there would be alot of inductor tuning afterward, but I'll have to do that if I replace that resistor anyway. band. Step 7: Connect the positive leg of this capacitor to the cathode leg of the D7 diode. Remove R123 and replace with a jumper.
This way you don't have to fumble around trying to remember which switch goes where, etc CLARIFIER:
I need to adjust the amc circuit a little though to get more modulatoin from a 636 mic. MODULATION: VR6 or cut D16
5)That's it .Flip the switch to jump up one channel. 5. 2. C104(470uF 10v). Step 5: Locate the D7 diode on the pcb. Re-tune coils. (Transmit circuit changes:)
13.VR16AM/FM Low Power
MODULATION: Cut R131
3. This is an excellent kit and installs quickly with very
: VR5
You will see J68 and J 69
Step 13: Flip the radio right-side up, facing you. Remove TR32
That is all for today. located 30mm (1 3/16") from the rear edge and 48mm (1 7/8") from the right SSB SIGNAL METER: VR2
Care to buy us a beer?
bottom), then lift the resistor up on its left lead at a 45-degree angle. But ultimately the range of the radio will depend mostly on the terrain. Cut the resistor's "RX" METER: VR1
to 26.955
Here's how to do a 10 Kc UP jump only:
Check all connections for shorts. Transmit on SSB, but not on AM:
place.
Fine and dandy I can understand that. [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.
Solder this RED wire to pin #3 of MB3756 regulator. the negative lead of the capacitor through one of the transformer holes where If you have a meter and you can tell what the power is ? : VR3
by johhn Sunday 2nd Nov 2008, 0:59, Post i have several new old stock units available. 1. Step 14: Place the emitter leg of the transistor on the top of the L2 at the place where you had previously applied solder. My 520's RF Gain has never been turned down or adjusted in the 20 years I have owned one. 56mm (2 3/16") from the rear edge and 33mm (1 5/16") from the left edge.
4. These CB radios are very compact and durable. As was posted you do not want to start soldering the surface mount components. Example: papa-mod for a superstar 3900 . 2. 1. Change R43 (10 Ohm) to a 2.7 Ohm. ORANGE
Resolder this WHITE WIRE to the PC board ground. I came up with the same results basically.
Replace C179 ( a 2.2uF 25v tantalum cap located near finals) with a standard 2.2uF electrolytic capacitor. 1. for a superstar 3900.it only had a 390k ohm resistor in it!! and your done. VR21 - Tx FREQUENCY ADJUST
mike plug.they didn't connect to anything inside the module! Center of switch goes to pin #9 of PLL (8 volts)
I put a resistor in series with the diode. For a 10 Kc DOWN jump only:
4. Replace R108 (1 Ohm) with a .47 Ohm. If you want to fool around with the rest of the >>stuff that's OK.. Replace 11.1125 crystal with a 11.3258 crystal. Insert one 5. free-floating 27-ohm resistor lead and solder them together. Step 37: Reassemble the radio. 4. 16 = 27.925 21 = 27.985 . output transformer and installing the 470uF is to smooth out RF envelope
Solder this RED
7. it. VR11 - DRIVER BIAS ADJUST
If all went well and you didn't smoke your radio, you should slide about 1 Kc up and 4 Kc down. 1- 100 to 200 Ohm resistor. MB8719 PLL
VR13 - AM POWER ADJUST
Thank you for the reply, however, I have one more question.
NOTE: The Orange and Red wires may need to be reversed in some radios for this to work right. 6. RESOLDER this RED WIRE to pin 3 of regulator IC MB3756. Step 12: Position the 470uF capacitor inside the radio where 7. Remove R174 and solder
Thank you and Goodbye! 4. Transmitter Features: PRO505XL PRO-510XL PRO-520XL BEARCAT680 . wire to the PC board ground. AM POWER: VR10
Place the two wires from the RF gain control in your
Can be modified by injecting new mixing frequencies. VR12 - ALC ADJUST
1. 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 10 KC JUMP:
Solder a short straight jumper wire across each gap. Remove the bottom cover, be carful not to pull
transistor or you'll get no RF output. SQUELCH: VR2
Make sure your radio is peaked out. fluctuations that would occur below about 200 Hz.
AM SQUELCH VR4
6.
even after adjusting. OVERMOD: Check D11
2. CHANNELS:
RED instead of BLUE. Step 31: Solder the positive leg of this capacitor with the short you made in step 29. (Mike circuit changes:)
5. I want to wire it directly to the battery as this seems to be the preferred way from what I can find out. 5. The front side of the radio should be faced towards you. I made this video becasue I was tired of hearing about how everyone w. 3= 27.465 8= 27.535 13= 27.595
1. 3. Replace R76 (3.3k) with a 1k. 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. 14.VR20Final Bias
Remove TR24
ground. 1. The original Pro series radios by Uniden used a high impedance Mic (1,000 Ohms). Change R124 (10k) to a 4.7k
modulation method. For all descriptions to follow, left is your left, right is Document Contents hide. > I have had my Uniden 510XL for almost a year now and haven't done any > modifications yet. counter may be unstable
Solder it to a constant 8.5 volt supply. Channel Expansion, 1) Open up your radio. Page 4: Parts Of The Radio PARTS OF THE RADIO Front 1. In JP6 holes, solder the 220uF capacitor. FINAL BIAS VR12
I got 3 of these (phillipine) going to some local jeeper 4x4 Bros. Biggest issue is, I can't find a source for that damn .47Ohm resistor to replace the 2.7 in front of the 15 ohm for the final, so I can get a bit more power out of this thing. Solder this RED WIRE
TX FREQ. RoadTrucker's Uniden CB Radio Comparison Chart is just what you need. This will restore receive.
POWER TWEAKS:
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. On the solder side of the board, solder the resistor
They are:
12.VR14AM Modulation
3= 27.465 8= 27.535 13= 27.595
counter
transformer. 3. Cut trace to pin #16 on the PLL. Meter VR10=1st Final TX Bias, VR11=Driver For TX Bias VR12=ALC For SSB Power
Uniden PC-66,PC-66A
> If someone could explain this in a bit more detail that would be > great. 5. down. left edge. Resolder this GREEN WIRE to POINT 14 (8.7 V) or to TR 41 collector. WANT MORE SLIDE?? Uniden PRO-510XL,PRO-500D,PRO-520XL POWER TWEAKS: 1. Is the Uniden 510XL Worth Looking AT? 2. Cut one side of R44 and D52. Re-tune coils L32,L30,L29,L28 and VR8 for maximum
Burned R89(15 Ohm 1/2 watt): Replace with a 1 watt. Jumper D35
I don't think you'll find much improvment though. 6.VR 7SSB Carrier Balance
Remove TR24
Follow the RED wire from the clarifier control to where it connects to the PC board and UNSOLDER it. We are working every day to make sure our community is the best Radio Hobbyist's site. 1. 4)Remove the jumper that is J25. wire. AM POWER: VR10
pictures for a good view of parts placement. Radio: The Uniden Pro 510 XL is a compact, 40-channel base model CB radio that performs basic CB functions. Step 16: Solder the two legs together. Follow the RED WIRE
I have a Uniden 510 Pro XL. We have made an effort to rate Uniden's PRO510XL. Use a SPDT switch and wire as follows:
29 GTL:
9 oz. Replace R124 (10k) with a 4.7k
AM SIGNAL METER: VR1
Remove TR32
Manual Uniden PRO 510XL : Manual : Manual Uniden PRO 520XL : Picture: Manual Uniden PRO 520XL : Manual Uniden PRO 530XL : Manual Uniden PRO 630XL : Specifications: Uniden UH500SX: Uniden UH500SX-RM: Manual Uniden PRO 640XL : Manual : Manual Uniden PRO 810E : Picture: Service Manual Uniden PRO 810E: Manual Uniden PRO 5050 If you are not sure how to identify the resistance of the resistor, it will be colored red, violet, black and gold. DO NOT adjust!!! 2)Find IC 6 & 7 by the PLL chip. OVERMOD: Check D11
GRANT-XL (8719 PLL)
PARTS NEEDED: 1- 220uF (16 to 25 volt) electrolytic capacitor. 4. 11.VR13AM/FM High Power
25 LTD
TIP120 = ECG 261 = 276-2068 (Radio Shack), DON'T BOTHER buying
Using a SPST switch, one side of the switch goes to the cut-side of pin #16. Make sure your radio is peaked out.
3. Replace
5. 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. http://www.cbtricks.com/radios/uniden/pro_510e/graphics/uniden_pro_510e_sm.pdf. 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 screws. synths used by pink floyd young dominican girls; tjc 1 auctions massage cape coral del prado; what are hft firms amazon bin store san antonio; jealous of instagram models
Basically, you need to either add voltage or ground pin
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. 2. RX!
2. NOTE: Some radios have different colored wires on the clarifier control. You are using an out of date browser. TIP31C = ECG 291 = 276-2020 (Radio Shack)
4. 2) Find the small circuit board on the left of the radio. Add a jumper in the holes from where you removed D29. I realy didnt have much need until they quit making the mini mag. FINAL BIAS: VR9
the 4 philips-head screws holding the circuit board to the chassis. Step 4: Cut the wires that lead to the pcb from the internal speakers. Resolder this ORANGE WIRE to pin 3 of MB3756 Regulator. your right. need of it and it takes up valuable space. Home Uniden Uniden PRO 510XL Professional Mobile CB Radio User Manual. 1. If you want to fool around with the rest of the stuff that's OK.. Compact Mobile CB Radio. Replace with a 16v or 25v. 2. Pictures, Manual and Specifications of the Uniden PRO 510XL AM CB-Radio / Plaatje, Handleiding en Specificaties van de Uniden PRO 510XL AM CB-Radio CB & Export Radios. completely around these screws and also a gap and more foil to the rear of both We'd really appreciate it. TX METER: VR6
Uniden Pro 510 XL Mods include the Power tweaking mod, the wide bandwidth direct RF modulation mod and the 24V power supply mod.
Step 2: Remove the front cover and the back cover from the radio by gently pulling them out. Find the YELLOW WIRE
the modification. POWER TWEAK: (ALSO WORKS ON: Uniden AR44,AX44,AR711)
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. Run the wire through any convenient route out the rear of the You will find it in front of the 15 Ohm final bias resistor. TR32 - IS THE AMC LIMITER, "I don't recommend removing TR32 as it disables VR12 ALC, SSB power will be at full blast. The audio limiter I believe was Q-6. immediately to the left and rear of where the audio transformer was.
VR13=AM High Power, VR14=AMC for AM Modulation VR16=AM Low Power VR20=2nd
(above ground) voltage or it may not activate the 2N3904 transistor. grill. 1. 3. Find D52, R44 and R174 and remove them. Step 11: Place the hot iron gently on top of the shield of the L2 close to its front left corner. NOTE: Some radios have a YELLOW WIRE instead of the RED WIRE. VARIABLE POWER:
for both screws. that all channels are locked in and working. Replace R108 (1 Ohm) with a .47 Ohm. (negative
PLL dead, no TX or RX: Shorted C112
ALC VR12
audio output, 1.7A Size 4-1/2" W x 6-3/4" D x 1-3/8" H by Dodgem250 Friday 28th Nov 2008, 16:28, Post 3. NOTE: The Orange
UNSOLDER and remove D29. You can use the 18 gauge wire for this purpose. cut or removed, Variable Alignment Points That May Have Been Adjusted, VR1=AM S-Meter VR2=SSB/CW S-Meter VR3=SSB Squelch
Cut this wire from the PC board. 1. Step 4: Keep tuning until the forward power of the radio is maximized. Replace R126 (10k) with a 2.2k. 1. 3. The best tech tutorials and in-depth reviews; Try a single issue or save on a subscription; Issues delivered straight to your door or device which switch goes where, etc CLARIFIER:
NO TX: Check for shorted 33uF(10v) capacitor across C87. Note that this will not work on all channels. UNSOLDER and remove D30. 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. Galaxy 44V
1. Receive on adjacent channel: Bad solder joint to C131
2. MHz.
MODULATION: Remove R131
Follow the ORANGE WIRE from the clarifier control to the PC board and UNSOLDER it. 3. Modifications Uniden PRO-500D,PRO-510XL,PRO-520XL POWER TWEAKS 1. Well the finals are so cheap, and I'd rather have a little gain then the factory 3 watts. 6) That's it. The frequency of the Uniden Pro 510 XL is 26.965 MHz to 27.504 MHz. CLARIFIER:
Replace with a 16v or 25v. If you prefer to be anonymous write it in the message. ASSEMBLY:
and these amps easily delivery around 1000 to 2000 watts and more. AM LIMITER: D-11
VARIABLE POWER:
Install a 4.7K resistor across the cut you made. 5. 4. It is lying flat on the board. (r238a 5.6K resistor in line with the variable resistor that adjusted
Working on CB unit mount now. from the clarifier control to where it connects to the PC board and cut
audio ic and move to pin 4 of ic. Put back the covers at the front and at the back. MODULATION: Cut D14
At this point, turn your radio on and check to varify that all channels are locked in and working. Channel 10 and channel 21 are 2 more busy channels that are used by many people for communication. 3. 2. : Install a 5.6uH choke on the banded end (grounded end) of the varactor diode D37 or replace D37 with a super diode. CB Radio Guru Verdict. 1. Final TX Bias, VR21=Frequency Adjustment Carful on this one. This will allow you to jump 10Kc up or down. 1. 1. Solder the jumper wire in place. VR10 - FINAL BIAS ADJUST
2. should slide about 1 Kc up and 4 Kc down. 25 LTD Classic:
This wire
5. are on the same board as CN5, but on the oppisite end. reinsert it in the next slot. 4. Replace C58 with a 180pF capacitor. from the clarifier control to where it attatches to the PC board and UNSOLDER
3. 1. 2. Remove R174 and put a jumper in its place. You can now enjoy We were flattered by this feature. by ramblingman Wednesday 13th Aug 2008, 13:47, Post This model comes with a +/- 0.005% frequency tolerance. 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. Compact Design. This will allow you to jump 10Kc up or down. 11 Meter AM CB Radio . OVERMOD: Check D19,TR14,VR5
Using small needle nose pliers, pull the plug off and
Cobra CoHGA1000 Mobile CB Antenna UPC: -28377-31081-2 Last edited: Mar 5, 2007 Z zz0468 QRT Banned Joined Feb 6, 2007 Messages 5. finals) with a standard 2.2uF electrolytic capacitor.
Remove R174 and solder a jumper wire in its place. . It's a module that was "supposed" to increase your modulation
Look
Replace R124 (10k) with a 4.7k
8. SW1 DOWN / SW2 UP: (ch. The superior engineering of the PRO510XL will treat your ears to professional 2-way radio communications as you've never heard it before.
1. PAY ATTENTION to the "+" and "-"!!! Then you must have about 1Kc slide up and 5Kc
2. SW1 UP / SW2 UP:
3. the "SUPER-TALK" kits. Re-tune coils L32,L30,L29,L28 and VR8 for maximum forward AM power. 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. I can't seem to find D14 on the board. Then you must have about 1Kc slide up and 5Kc down! the two pins together. Whenever I say "from the left/right/rear edge", I mean from 1. Put a voltmeter on the collector of the RF output transistor MODULATION: Remove R131
(negative side of cap. 4. CAUTION!!! These links take you to third-party sites, such as Amazon.com but at no additional cost to you.**. 2. VR4 - AM SQUELCH RANGE
..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. This wire is no longer used. the negative lead to the ground foil on the bottom side.
Change R58(10 Ohm) to a 2.7 Ohm. there is to it. Step 11: Cut a 6-inch length of 16- or 18-gauge stranded hookup
2.
little tools. down! Newer models use: 2SK192A. (TX full mod.) 3. Your channels should work with your band selector on "D" band. With the CB in transmit and the generator applying a signal to the No smoke? Re-tune L9,L6,L5,L4 for maximum forward power. to pin 3 of the MB3756 regulator. MODULATION Cut D14 AM POWER: L6,L5 VR1: Squelch VR2: TX meter VR3: RX meter to POINT 14 (8.7 V) or to TR 41 collector. VR13 - AM POWER ADJUST
The antenna is on my crew cab pickup roof, which makes . VR7 - CARRIER BALANCE ADJUST
to 28.500 Mhz. and Red wires may need to be reversed in some radios for this to work right.
Step 25: Locate the TF 375 audio transformer on the pcb. 4. FINAL BIAS: VR9
Step 29: Short the left rear transformer hole with the middle of the three front transformer holes. >>Eric, I have 3 of these radio's in various autos right now all you need >>to do to them is cut D14. installed where the transformer was, as it must now connect the 12V to the ", SuperStar 3900
Mobile CB Radio.
Newer models use: 2SK192A. VR3: RX meter
UNSOLDER and remove D29.
Find R135 (33k) and lift one end.
This modification connects the circuit common to the actual After you have removed this wire make sure there is no solder connecting
Origin. Solder one lead to the Base lead of the It is a very compact radio with only the most essential features. Alternatively, you could also use a 1N914 switching diode. SW1 DOWN / SW2 UP: (ch. All the module does is replace a resistor in the radio
Center of toggle switch goes to pin #13
2. If someone could point me in the right direction, I thank ya.. Will & Debbie Hicks Will's CB Shop - Naples, NC. TX FREQ. Solder The AM regulator 2SC1419
You can clip it or add resistor in line for 100% , there loud little radios with there little stock mic's . closely at the 2 screws on the right side. Public Address. 1. by fantacmet Monday 28th Jul 2008, 18:59, Post replaces Jim Bare's original audio modulation method with a direct RF
This forum message list include all message for that is related to PRO-510, this include message that also is related to articles. Cut the end of R119 that is closest to D29. 7. the metal tabs were. 2. KNOWN BUGS:
AM LIMITER: D-11
Incidentally, the reason for yanking the audio 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 . 3. I am telling everyone so that no one else will
It should be able to go from 28.300 Mhz.
AM LIMITER: D-9
It will be exactly 14 mm from the left edge and precisely 42 mm from the bottom edge. Models. 2. 2.
Re-align center slot by adjusting CT3. (DO NOT change the 15 Ohm resistor!!) 3. You need the same tools that you used in the Wide bandwidth direct RF modulation mod.
Increase the peak power level to 20 to 22 W. A 2N3904 NPN small-signal transistor. 1. POWER TWEAKS:
We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. This is a modification to the Uniden Pro510XL CB radio which Click here to see the article list for PRO-510. POWER TWEAK #2
TX FREQ. 2. 2. 2. through one of the transformer holes where the metal tabs were. 10.VR12SSB ALC
3. VR3 - SSB SQUELCH RANGE
6. any help. Center of toggle switch goes to pin #13
Re-tune L14,L13,L12 for maximum forward power. Replace R43 (10 Ohm) with a 2.7 Ohm. Remove D51 and put in a jumper. Your email address will not be published. should do it. Re-tune coils L13,L10,L9,L8 for max forward power.
Install a "super-diode" in place of the stock varactor
Also if I do this, should I still replace that resistor in front of the final or just leave it as is? 4. 3. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. 4)This should make the radio TX/RX on the same frequency. 1. CLARIFIER:
Then you should be able to track on TX and RX! This is for Educational reasons only, Radio is based off experamenting With out it we wouldnt have ever found radio.
3. Change R108 (1 Ohm) to a .47 Ohm. 2.VR 2SSB S-Meter
REPAIR TIPS:
If you have some, slip 2 or 3 ferrite Follow the ORANGE WIRE
3. Missaligned VR4. SW1 UP / SW2 UP:
Peak and tune UNIDEN PRO 510XL. pins 1&2 or 2&3 of audio ic. We'd really appreciate it! by mag69 Friday 7th Nov 2008, 21:42, Post 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. 3. When you apply the 8 volts, this pulls pin #16 high causing the 10 kc jump up. REPAIR TIPS:
The Uniden Pro510XL can be used to remove noise and improve communication reliability and clarity with an integrated ANL and squelch control. POWER TWEAK:
SSB POWER: VR12, POWER TWEAK:
1.
OVERMOD: Check D19,TR14,VR5 25 LTD 1.
About the Product. It is BTSC1700. the functional name of the component leads. radio communications.Your Uniden PRO 510AXL is an advanced mobile radio designed for use in the Citizens Band Radio Service. Find the BROWN wire on the clarifier control UNSOLDER it, and tape it out of the way. 2.
3. Step 12: Position the 470uF capacitor inside the radio where SSB POWER: VR11. Adjust ALC for no more than 20 - 25 watts PEP on SSB. When it comes to these little dudes there is not a whole lot of tuning that can be done. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles.
Congratulations! + 10 KHz Jump Switch, 1)Get a SPST switch and mount it in the radio. ", The above is compliments of "Doug
1.VR 1AM/FM S-Meter
Step 1: Place the radio in an upside down position with the front side of the radio facing you. 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
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