Galaxy 2517

[smoke blower]

I am trying to get some help here my Galaxy 2517 with the 1969 finals has a clicking sound. I was talking on USB and all of a sudden the radio just started going click, click, click ,click just like a machine gun it does it on am also. When I unkey it is like a relay stuck it takes a few minutes before the receive starts.

[ Post made via Android ]

[MDYoungblood]

A ticking sound is most likely cap shorting, which one I can't say without looking in the radio.

3's


Greg

[sonoma]

good possibility of a leaky cap, also make sure the connectors from the face to the main board are all hooked up good. even verify the echo board connectors are good. look for bad solder at the connector pins.

[ Post made via Linux Laptop ]

[smoke blower]

Ok will do it is just wierd the radio recieves good and swings a good 40 watts or so when I say something in the mic boy that thing just starts clicking away like I said sounds just like a machine gun.

[ Post made via Android ]

[smoke blower]

I checked around for a bad solder joint and checked all the plugs but still doing the same thing.

[ Post made via Android ]

[smoke blower]

I didn't seem to see any issues with the plugs or solder joints

[ Post made via Android ]

[sonoma]

+check the diodes d70 to d78. I think that covers all of them in the mic circuit. have you tried another mic? I have never seen one with out a relay make this kind of noise.

[ Post made via Linux Laptop ]

[smoke blower]

Ok I will check them this afternoon when I get home from work. Yeah it is wierd no one has ever heard of this happening. But like I said I was talking on it then all of a sudden it just started going off like a machine gun until I unkeyed the radio. I also tried different mics same Problem

[ Post made via Android ]

[sonoma]

be sure to check D77 close. it can make a radio do some funny things when it goes bad. i have seen it hold the radio in TX mode and turn the radio off then it would RX fine until you would key up then make it hang in TX mode again.

[ Post made via Linux Laptop ]

[Stoneman]

Did you open radio and try to pin point where the clicking is coming from??

[smoke blower]

I checked those diodes all check good. It is almost like the TALKBACK has something to do with it if I turn it on it doesn't stick in the clicking mode but turn it off it starts. I have taken a video of what it is doing but I can't send to you Sonoma it says file to big so I don't know

[ Post made via Android ]

[smoke blower]

The clicking is coming through the speaker but the radio isn't keyed up or no output when it does it just through the speaker but if I key the radio up then you can hear it on a test radio

[ Post made via Android ]

[smoke blower]

I just noticed I can turn the volume wide open and it starts popping real bad turn it down it stops turn it wide open it starts again. It can be receiving fine with volume a 1/4 the way open turn it more than half way it starts popping through the speaker

[ Post made via Android ]

[sonoma]

Ok check to see how much voltage is on the board. the power supply could be putting about 20 volts or more. if the voltage is at 13.8 then start checking the caps and the audio IC for a popping noise in that area. I just talked to my buddy at the shop and he thinks that could be your problem

[ Post made via Linux Laptop ]

[sonoma]

also check to see if the meter lights are real bright.

[ Post made via Linux Laptop ]

[sonoma]

Smoke blower I use to have your phone number but not sure what I did with it. I found 577's number but not yours. if you have 13.8 volts on the board then look at the caps by the audio IC. does the radio do this when it is cold or does it need to warm up a few minutes. if so use some cooling spray on the caps and audio IC to see if it goes away for a few minutes.when you say it has RX and TX is audio in there with the noise.

[ Post made via Linux Laptop ]

[pabxone]

Are you using the original factory microphone ?

I wonder if it is something as simple as microphone wiring or compatibility issue ?

[sonoma]

I was going to call him to hear what it sounds like. but I have lost his number. maybe he will get back in here to see what info has been given to him. I was wondering if the transformer in the power supply is going out.so many things can cause this and trying to help on line gets hard at times. I was wondering if he has a audio tracer. that was some thing I bought when I 1st started working on radios.

[ Post made via Linux Laptop ]

[sonoma]

I got your videos this morning. be sure and check the voltages from the power supply when you get home tonight.is the talk back built into the echo on this radio. I have only seen one of these in my life. it was just to peak it back then.have ran across a popping issue a few times before and it was the transformer going out and a cap at the audio IC and even a audio IC causing popping. when I talked to my buddy at the shop last night he was thinking the same items. I will call him today and let him listen to the videos also. be sure to let me know if you have TX and RX audio with the antenna hooked up when you do the voltage test .

[ Post made via Linux Laptop ]

[sonoma]

after you check the voltage and the audio ic and parts pull the mirror board out and see if it stops. if it does not stop then check IC7 the 8 leg chip in the audio circuit.I think it it a 4558 or some thing like that part number.

[ Post made via Linux Laptop ]

[smoke blower]

Ok sorry it took so long I am busy as crap today on lunch break right now. I am glad you got the videos you can hear that piping sound I am talking about. I will say the radio recieves good and the radio keys like 2watts and swings like 40 or so watts

[ Post made via Android ]

[smoke blower]

I am not sure if the TALKBACK is part of the radio or in the echo board.

[ Post made via Android ]

[smoke blower]

I will have to wait until​ tomorrow night to get back working on it I am still working

[ Post made via Android ]

[sonoma]

I had my friend also listen to the videos and he said he thinks it is either to high of voltage to the board or the audio chip and circuit. just have to wait until you verify all the items asked of you.

[ Post made via Linux Laptop ]

[smoke blower]

are you around Sonoma