Question about Cobra 200 GTL DX 4-Channels Base CB Radio

1 Answer

200 GTL DX Night glow face plate.

Hi I'm new here, but I was wondering if any one has had a problem with the night glow face plate getting dimmer, even when the dim switch is on high. Is there any bulletin out on this problem that you know of one wire? This is one of the main reasons I bought this radio, was for the lighted face plate. Many thanks...... Icepick 73

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  • Cobra Master
  • 1,769 Answers

Icepick , there are diode in the radio to allow the voltage to flow to get those lights glowing. If the voltage is not at a specific level then you may have the problem you are describing. make sure you have 13.8 volts of power coming into the radio then check you voltage on T712 to make sure the voltage is ok also IC 5 . Check diodes 68 , 69, 71,72 for correct voltage . now you need a voltage chart. You will have to google it .

Posted on Feb 23, 2015

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  • 37 Answers

SOURCE: Night watch lights are dimmer than when new

The dimmer pcb driver has a tendency to go bad in these radios contact cobra and ask them they migth be able to send you one if not write back to ma and Il see if I can get you one...Chia

Posted on Jan 10, 2008

One Wire
  • 126 Answers

SOURCE: talkback on a cobra 200 gtl dx

This procedure is not as simple as just cutting a wire. Note that you can possibly mess your radio up if any maintenace is not done properly. I do suggest taking your radio to a proffesional to have the talkback removed, but, if you really want to do it yourself, go to ghe following link and basically reverse what has been done.

http://www.cbtricks.com/radios/cobra/150gtl_dx/tsb/cobra_200gtl_dx_tsb_10041.pdf

This is the service bulletin for the addition of talkback to the Cobra 150GTL DX and the Cobra 200GTL DX.

As long as the talkback was added correctly, this can be put back origional.

If this does or does not help, please reply on here or email me at rollincbmods@yahoo.com. I look forward to hearing from you.

Dean
Rollin CBs
Mt. Vernon, TX

Posted on Feb 14, 2008

Mechanic688
  • 204 Answers

SOURCE: cobra 200 gtl dx clarifier clip

Egor, hi. I'm sure there is a mod probably only known by the repair centers. I have converted and tuned the 200, but in case you don't know, the radio is full of surface mount components. They look like specks of pepper to the naked eye, and so it takes a tech with years of soldering experience to do any modding without destroying what their working on. Those radios are not a friendly radio for experimenting. I looked thru my papers that Cobra tech support sent me for converting, tuning, and other misc. mods but that info was not included. It is a nice radio when set up properly, so don't mess it up by experimenting.(just my opinion) Hope this helps,,and good luck, Mechanic

Posted on Feb 22, 2008

skyshaker981
  • 4 Answers

SOURCE: Cobra 200 GTL DX

I am not sure what you asking but if question is over 40 yeah 120 channels I hope nail you're question bye good bless

Posted on Jun 06, 2008

audio20
  • 22 Answers

SOURCE: cobra 148 gtl dx manual

This is the Manual for the C148GTL

Posted on Apr 23, 2009

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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I just bought a used cobra 200 gtl dx im totally clueless to cbs could u tell me where all the controls and buttons should be



  • Hi, I can help.

  • I have uploaded a pic of the Cobra 200 and labeled each knob/switch with letters to reference.
  1. A) Noise blanker - When this switch is pushed the high pitched noises are canceled leaving a more natural sounding receive. Some like it some don't.
  2. B) High Power - This button adjusts the power output of your radio. Inside the radio the pots are adjusted for a low power setting and a high power setting.
  3. C) Roger Beep - This is a beep heard by the person you are chatting with at the end of your transmission.
  4. D) The 10+ KHz - This button when pushed jumps the frequency up 10 Kilohertz to help you better navigate frequencies.
  5. E) This is where you adjust how you are going to modulate. CW is for continuous wave or Morse Code. Unless you have a key don't worry about this setting. FM is for Frequency Modulation AKA the HAM bands. AM is for Amplitude Modulation. USB and LSB are for Upper Side Band and Lower Side Band respectively.
  6. F) is the band adjustment - Each band (A, B, C, D is a set of frequencies.
  7. G) is a dimmer and the SWR calibrate. To use the dimmer push the dim button in a rapid motion. To use the SWR calibrate side press and hold the dim/calibrate button and using the SWR knob on the right side of the radio (L).
  8. H) SWR/, S/RF - If this button is in the out position then your meter will swing as usual. Push the button in to measure SWR.
  9. I) is the volume and squelch. Volume is what is adjusted to how loud you want your speaker. Squelch you adjust to take out the unnecessary white noise.
  10. J) Mic Gain and RF gain - Mic Gain is how much gain you want to your mic. RF gain is how much of the receive you want to pick up.
  11. K) Is the fine and course adjustment that you clarify your frequencies with.
  12. L) You adjust the echo and the SWR with.
  13. M) is the channel selector.





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  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.


Regards, Tony

Sep 17, 2011 | Cobra 200 GTL DX 4-Channels Base CB Radio

1 Answer

The lights on the front of my nightwatch is not working but the rest is the meter and channels light up and the dimmer works just the backlighting wont whats the problem thanks


  • That Night Watch face plate is AC ran by a converter inside the radio. The LEDS are part of the face plate and sold as one unit. The face plate goes out often on these radios. In short the face plate needs replaced if you want it to light up. The radio's performance will not be effected by this. Cobra can actually switch that out fairly cheap. Cheaper than buying a face plate used on the net.
  • https://www.cobra.com/index.cfm
Regards, Tony

May 20, 2011 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

My name is kyle my cobra 200gtl face"nightwatch"plate went out.. yes i had it tested.. the cb shop say he dosn't have any in stock.. where can i get one?


You can check out e-bay. I have seen them on there. You can Google Cobra200 GTL Night Watch faceplate this though. I have done this before. Google CB shop. Don't matter where they are and see if they have a 200 GTL Night Watch face plates (both pieces) in a parts radio laying around. You may be surprised. Let me ask this, what went out on the faceplate? The cord or the leds? You can buy leds that change just like that on the net and simply replace them. Good luck to you. They are pretty radios and who can go wrong with Cobra?

Feb 13, 2011 | Cobra 200 GTL DX 4-Channels Base CB Radio

1 Answer

Bought a cobra lx le from sparkys cb shack. using the radio as a base station. with the radio turned off , when i turn the power supply on a pyramid ps-7kx the radio face plate lights up for a couple of...


This is normal for the LXLE's. The new circuitry power the new face plate uses a small high voltage transformer and if power is applied to the receptacle on the radio it is drawing some current. When the power supply is turned off or on with the on/off switch on the LXLE turned off there is still a spike of current going through the radio. Not to worry, it will hurt nothing. If this is truly a problem, someone could probably design a little diode circuit to stop this issue. I would if I could but am not that smart.

Dec 21, 2010 | Cobra 29 LTD CB Radio

1 Answer

How do you dim display lights on a connex cx 3400 hp


O the front you should have a dim switch its on of 4 up & down switches ? if not check on the back ? was it bought as a new cb or was it 2nd hand as the dimmer switch may of been used for something else

Mar 09, 2010 | Connex 3300 240-Channels Base CB Radio

1 Answer

I have a non-lighting Cobra 29 NW face plate, or EL Driver problem . EL Driver is the small metal box mounted inside, to the side, of the the Cobra 29 near the channel selector control . Can anyone tell me...


that is a power inverter. dc to ac inverter. 13-14volts to 40+ volts ac. to run the el display.. if the display is pulled away from the face like the glue is coming loose that indicates the el display is burnt and will not work unless replace the face plate the el face.. you should have 45volts AC on the two wires feeding into the main chassis face to the el display.

Nov 28, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 ltd nw , Backlight face plate does not light .


is the face bubbled pulled away from face? if so need new el plate. if not then check the inverter for correct voltage.

Nov 26, 2009 | Cobra 29 LTD CB Radio

1 Answer

Night watch lights are dimmer than when new


The dimmer pcb driver has a tendency to go bad in these radios contact cobra and ask them they migth be able to send you one if not write back to ma and Il see if I can get you one...Chia

Dec 15, 2007 | Cobra 150 GTL DX Base CB Radio

1 Answer

No front panel lighting


The "nightwatch" lighting uses an EL or electroluminescent material that does degrade with age. If the radio is old, then it may be lighting very dimly (check in a dark room with the dimmer at full bright). The material is connected by a ribbon to a special high voltage pulsed powersupply that runs at about 500 volt. If the power supply is working then a new face would be in order or a new radio. If the powersupply is not working it may be repairable but requires working with surface mount components. Either way, it is NOT a simple lightbulb fix. I have successfully repaired and do stock the smc components to repair but cannot get the faces through cobra ($$$). More info? Contact through www.cbshop.info

Jan 31, 2007 | Cobra 29 WX NW ST 40-Channels Base CB...

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