Mother board diagram ge cb radio

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OWNER'S MANUAL midlandusa.com - Midland Radio

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PDF Midland 75-785. 40 CH AM HANDHELD CB TRANSCEIVER. 78-785 is a 40 channel Citizen Band Mobile operation, that is big on performance.
15 pages

HANDHELD CB RADIO - Midland Radio

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PDF Sep. 10, 2012 - Midland 75-785. 40 CH AM HANDHELD CB TRANSCEIVER. 78-785 represents state-of-the-art high-tech engineering. Designed for 40 channel Citizen ...
8 pages

Midland 75-785 Owner's Manual - ManualsLib

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View and Download Midland 75-785 owner's manual online. ... DC 13.8V CHARGE 40 CHANNEL CB TRANSCEIVER 75-785 SQUELCH VOLUME DC 13.8V CHARGE page 4.

75822 HANDHELD CB TRANSCEIVER User Manual G-300 ...

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75822 HANDHELD CB TRANSCEIVER User Manual G-300 owners guide Midland Radio ... Owner's Manual Model Number 75-822 Features Include: 40 CB Channels 10 ...

USER MANUAL Midland 75-822 40-Channel 2-in-1 CB Radio

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User manual, Midland 75-822 40-Channel 2-in-1 CB Radio, Midland, 75-822, 40-Channel, 2-in-1, CB, Radio, with, Weather, Alerts.

If a cobra 29 as indicated here what are you using for power for it? If a base radio as indicated it also has a 12 volt connection--if no problem via the 12 volt connection the fault is in the built in power supply the radio has.

All "Base" radios have 12 volt connection and their own internal power supply to operate off wall voltage.

sounds like your in good shape if its a 12-14v output.. the things about people blowing up radios is they use 10-30amp fuses and hook them up backwards.. + to ground and ie... make sure to use a 2 - 5 amp fuse for a normal cb.. and go + to + and - to -...

get a 12 volt 3 to 10 amp power supply. radio Shack has many. Red(+) is 12 volt + hot..Black and metal is always ground(-).

12 volt 2 amp kinds or any 0.5 amps even. You want it to blow fast to save radio from damage. So, any type 0.1 amp to 1 amp or 2 even. It doesn't matter; but a fast blowing one will save radio from damage later on.

The meter and the channel indicator should light up. You can purchase a 12 volt wheat lamp at Radio Shack to replace the burned out bulb in the meter. Dont know how technical you are, but, those lights are pretty easy to change. Just follow the wires that lead to the meter. There will be 2 sets. One that solder to two little tabs on the back of the meter (these control the needle movement) and another set that lead to the bulb. The bulb basically just slides into a little square hole in the side/back of the meter. Good luck. Hope this helped. Lost Jeep, Athens GA, 10-7 !!

Radio Shack 12 volt wheat lamp. They come with short leads to tie into existing wires.

If the fuse is O.K. it could be that the input diode is burned....this is to protect in case of the radio being hooked up powerwise the wires have been reversed. Usually RED is 12 Volt POS. If you open the radio look where the power cord comes in....you will see the diode and I found usually at the Right side of the chassis, that is right rear with component side up. It is usually burned and if you replace it you'll be in business ! ! Goo0d luck.

Check Q37 (2SA473) a large TO 220 case style Transistor on the right side of the board when looking at the component side with the front of the radio facing you.
Also check D73 (7.3 volt zener diode) Q35 (2SC945), and D72 (MA27 W-A Diode).

From www.Cobra.com


"Where do I connect the three power wires? (radios with 3 power leads)
Answer: Connect the black wire to chassis ground.

Connect the red wire to a switched +12 volt source, such as the fuse for the AM/FM radio.

The orange wire is for the memory retention of your CB radio, and should be connected to a constant +12 volt source. The fuse for the brake lights is usually a good choice.

With the radio wired as above, the radio will turn off when the ignition is turned off. The orange wire will provide power to the radio so that it remembers the channel.

If you are installing your Cobra CB radio in an application where you wish to utilize a cigarette plug to power the unit, connect the black wire to the negative lead (side terminal) on the plug. Connect both the red and orange wires together to the positive lead (center tip) of the plug. Your unit will function properly this way but will not retain the channel memory. When power is applied your radio will come up on channel 9."