Question about Cobra 19 DX 40-Channels Base CB Radio

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No power television - Cobra 19 DX 40-Channels Base CB Radio

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  • Rommel Cana
    Rommel Cana May 11, 2010

    is it connected?

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YAY! NO POWER TELEVISION!!! I am not even sure what to make of this post LoL.

Posted on Oct 04, 2009

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Power drops on galaxy dx 959 when switched from ssb to am and back


if you mean that the power drops from ssb to am then when you change it back what you should do is check to see what power you have to begin with.you may have to go inside the radio to adjust the power. there is hi power and Low power so watch yourself.

Mar 28, 2013 | Galaxy Radios DX-979 40-Channels Base CB...

1 Answer

My rci2980wx wont power


the diode is located near power cables and trace from power switch, the diode is quit big and something like IN4001 to 6 Re: Jeff

Dec 01, 2012 | CB Radios

1 Answer

How to trun the power up on my galaxy dx 55v


AM CARRIER POWER HIGH: VR-13 pot. for RF power adjust

AM CARRIER POWER LOW: VR-16 rf power adjust

Oct 22, 2012 | Galaxy Radios DX-55V Base CB Radio

1 Answer

My 1947 motorola tv plug is female


That would be for the phonograph power you would plug the phonegoraph into. It may or may not be switched with the main power. You would have a seperate power cord for the TV chassis itself.

Sep 29, 2012 | Motorola 1940s Vintage Portable Radio...

1 Answer

LG 42LC2D screen periodically blacks out, sound still plays


It is possible the salt air may have corroded a marginal connection ont he 24 volt supply. You can either simply buy a power supply board from any of several online vendors, and swap the board yourself, or you can try reflowing the solder on all of the connections on the Power supply board. Replace all the electrolytic capacitors in the 24 volt supply portion of the set while there.

It would not hurt to check the inverter board for bad solder connections as well, excessive leakage across transistor terminals in the oscillators, and potentially stressed electrolytic capacitors that may or may not show visible signs of stress.

Feb 17, 2012 | CB Radios

1 Answer

I have a Midland 75-822 that I run off adapter power all the time. How do I turn off the battery save function? With it pulsing the power on and off I miss the firt syllable when someone transmits.


  • Their is no power save mode on this CB in the terms I think your thinking of. There is a high and low power that deals with how much power the CB puts out when transmitting that will make your battery last longer but this would have no bearing on the issue you are having.

  • If you are using a power cord all the time then remove the batteries from the CB until you need them. There are two thumb clips you pull down on and pop the compartments off (one is for rechargeable and one is for regular Alkaline batteries).

  • If the CB is actually powering on and off you have a power feed issue such as a bad connection, a failing power feed socket, a weak inline fuse on the power cord about to blow or something internal is malfunctioning.

  • Hope this helps.

May 26, 2011 | Midland 75-822 40-Channels Handheld CB...

2 Answers

Im installing a west marine vhf500sc on my tugboat. I have all the power, ground, and antenna hooked up properly but yet it still wont produce power. What should i do...


try replacing the microphone, some radios will not even show power with a faulty microphone. also, check that you have power to the hot wire and the ground is grounded by use of a multi-meter.

Jan 07, 2010 | CB Radios

2 Answers

How to adjust frequency on transmit??? Galaxy


hELLO THERE
hERE IS SOME MODIFICATIONS FOR THIS RADIO
Galaxy Mods DX 2527 - VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR11...Driver Bias, VR12...SSB ALC, VR13...Hi Power, VR14...AMC, VR15...AM Low Power, VR16...SSB Low Power, VC 1....10.240, VC 2....10.240. DX 2517- VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 5....FM Deviation, VR 6....SSB Carrier Balance, VR 7....TX Offset, VR 8....CW Beep Level, VR 9....RF Meter, VR10...Final Bias, VR11...Final Bias, VR12...Driver Bias, VR13...SSB ALC, VR14...AM/FM High Power, VR15...AM Modulation Meter, VR16...AM Modulation, VR17...SSB Power, VR18...AM/FM Low Power, VR601..13.8 Volt Power Supply. DX 22B- VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR11...Driver Bias, VR12...SSB ALC, VR13...High Power, VR14...AMC, VR15...AM Low Power, VR16...SSB Low Power, VR21...TX Offset, VC 1....10.240, VC 2....10.240. DX 11B- VR 1....AM/FM S-Meter, VR 2....SSB/CW S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 5.....FM Deviation, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR10...Final Bias, VR11...Driver Bias, VR12...SSB ALC, VR13...AM/FM High Power, VR14...AM Modulation, VR16...CW Tone Level, VR20...Final Bias, VR21...TX Offset, VR601..13.8 Volt Power Supply, VR803..AM/FM Low Power. DX 77HML, DX 88HL, and DX 99V- VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 5.....FM Deviation, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR10...Final Bias, VR11...Driver Bias, VR12...SSB ALC, VR13...AM/FM High Power, VR14...AM Modulation, VR16...AM/FM Low Power, VR20...Final Bias, VR21...TX Offset.
Unmarked VR in R189..AM/FM Medium Power for DX 77HML only. DX 33HML, DX 44V, DX 55V, DX 66V, and DX 73V- VR 1....AM/FM S-Meter, VR 4....AM/FM Squelch Range, VR 5.....FM Deviation, VR 8....RF Meter, VR12...Low Power AM Modulation, VR13...AM/FM High Power, VR14...High Power AM Modulation, VR16...AM/FM Low Power.
Unmarked VR in R188..AM/FM Medium Power (DX 33HML only)
Unmarked VR in C139..Med Power AM modulation (DX 33HML only) DX 949,DX 959- VR 1....AM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM Squelch Range, VR 6.....SSB Carrier Balance, VR 7....TX Offset, VR 9....RF Meter, VR10...Final Bias, VR12...Driver Bias, VR13...SSB ALC, VR14...AM High Power, VR15...AM Modulation Meter, VR16...AM Modulation, VR17...SSB Power, VR18...AM Low Power, VC1....10.240. DX 2517 and DX 2527-
Symptom:Buzzing or motorboating sound in either the transmit or receive.
Problem: TR602 is oscillating
Cure: Replace C602 with a .01uF cap {Cap is located in the power supply board}.
RG 66,99,DX2517 Replace Q54 2SB754 60watt 7A with a higher power 2SB817 100 Watt 12A. Derating of this component will cool operation, provide better voltage stability,decrease wobble, allow voltage increase to 14.5 volts comfortably. (replace 10 volt caps in this section of the radio to a minimum of 16 volts before increasing supply voltage to this level)and provide faster swing rise time, Replace Q37 2SA473 to a 2SA1012-0 or ECG153 this will improve the clarity and volume of the modulation and it will also run a lot cooler.

Nov 12, 2009 | Galaxy Radios DX-949 40-Channels Base CB...

2 Answers

TRC520 CB wont power up


Hello, First of all you only have the Power wire Red, and the ground wire Black to connect for 12v DC to power the unit. If you memory power it is usually connected to a constant power source such as the cigarette lighter or continuous 12V dc powersupply off of the battery. These are the only connections that should be connected to provide power. Since the unit will not turn on I suspect that the CB's power supply and regulator have been blown. Another possible choice is that the radio was working and someone removed the antenna cable and the the RF power amplifier malfunctioned taking the power supply and regulator with it. To solve this problem, check the voltages on the wires before connecting them to the radio (these should be the 12 volt power off of the radio circuit, and the 12 volt power off of the continuous 12V connector (or the cigarette lighter). These voltages should read 12V. Connect the CB with it turned off and measure the voltages (should be 12V) Turn the radio on and check the voltages (should be a little less than 12V) If the radio does not come on then the internal power supply of the radio might be defective (In this case I would advise taking the CB to a qualified radio repair shop) I hope this helps Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

Jun 11, 2009 | Radio Shack TRC-521 CB Radio

1 Answer

Cobra 200gtl High Power Transmit problem??


Depending on the type of power supply, radio frequency (RF) energy from the transmitter may be 'fooling" it into thinking that you're overloading it. Check to see if there's any discernible dimming of the meter lamp when this problem occurs, if so, the supply is the culprit.

Otherwise, its probable that the final amplifier transistors are overheating, either they are 'leaky' or not properly attached to the heat sink.

Jun 23, 2008 | Cobra 200 GTL DX 4-Channels Base CB Radio

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