| Author |
Message |
    
Bushpilot169
Junior Member
Username: Bushpilot169
Post Number: 24
Registered: 2-2004
| | Posted on Tuesday, July 13, 2004 - 12:56 pm: | 
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I have this galaxy dx44v that do's not key up.
i have checked the final,driver audio and all are good. when i key the radio the tx,rx light change's color like it would normaley. also
there is no recieve to it. i have changed d77 but
still nothing. i also found d116 cut out commpleatly, and i replaced it, but still nothing. anyone have any ideas????
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Tech548
Moderator
Username: Tech548
Post Number: 135
Registered: 5-2004
| | Posted on Friday, July 16, 2004 - 6:13 pm: |
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Bushpilot169
With the radio keyed, press on the circuit bord at different locations and see if the transmit doesn't come back. You just might have a cold solder joint. If not, then we'll have to try something else.
Jeff. |
Bushpilot169
Junior Member
Username: Bushpilot169
Post Number: 25
Registered: 2-2004
| | Posted on Saturday, July 17, 2004 - 3:10 am: |
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tech 548
I have allready tryed that, but with no luck. |
Tech548
Moderator
Username: Tech548
Post Number: 149
Registered: 5-2004
| | Posted on Monday, July 19, 2004 - 1:25 am: |
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Bushpilot169
When you say it has no receive, do you mean it has no audio receive or no signal receive?
If you have a schematic for this radio, check the pin voltages on the audio chip that's bolted to the chassis. With the radio upside down, it will be the long chip on the right hand side wall.
Jeff |
Bushpilot169
Junior Member
Username: Bushpilot169
Post Number: 26
Registered: 2-2004
| | Posted on Monday, July 19, 2004 - 12:48 pm: |
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tech 548
when i say it has no receive, it has no audio
no signal receive. there is nothing at all.
when i have it on a freq counter there is nothing. the radio is compleatley dead,it show's
no carrier,and it will not key up, changed mike's
and rewired a mike for it. still nothing.it do's
get power and the tx,rx light do's change like it would when it is keying up like it should. |
Tech548
Moderator
Username: Tech548
Post Number: 156
Registered: 5-2004
| | Posted on Tuesday, July 20, 2004 - 2:01 pm: |
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Bushpilot169
OOOOO K.
This sounds more like a possible ocillation problem now.
Did you get the radio in this condidion or has it always been a working radio for you? The reason why I asked this is because the previous owner may have been "tuning" on some coils that he shouldn't have.
If this is the case, L-17 is the first one that comes to mind. This coil can completely deaden both transmit and receive if if not set correctly.
However, if you have previously had the radio working and on the air, I don't see any reason for L-17 not to be working.
Jeff. |
Bushpilot169
Junior Member
Username: Bushpilot169
Post Number: 28
Registered: 2-2004
| | Posted on Tuesday, July 20, 2004 - 5:06 pm: |
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tech548
I had gotten the radio this way,how do i properly
tune L-17? and what tools will i need?
Thanks for your help. |
Tech548
Moderator
Username: Tech548
Post Number: 171
Registered: 5-2004
| | Posted on Sunday, July 25, 2004 - 3:04 am: |
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Bushpilot169
Use a plastic (non-conducting) type screw driver. Also, if you do not have the schematic or proper transmitter alignment equipment, I would not attempt this. However, if this is just an experimental radio, then go ahead and give it a shot.
L-17, and all the other coils, will be marked on the board. With the radio up-side down, it will be located on the lefthand side wall near the center, about 2 inches in from the wall. Also, it should have some wax in it. If it does have some wax in it, it's possible that it may have been untouched.
Try turning it one complete turn to the left and then one complete turn to the right. If the receive doesn't return by doing this, turn the coil back to its original place or as close as you can get to it. Also, check all wiring and make sure none are just hanging loose.
Trying to find a problem is difficult to do without actually seeing and benching the radio. At this point, it's all pretty much touch and go.
I'm hoping other forum members may have some ideas about this also. Good luck with your project.
Jeff |
Bushpilot169
Junior Member
Username: Bushpilot169
Post Number: 32
Registered: 2-2004
| | Posted on Sunday, July 25, 2004 - 9:58 pm: |
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tech 548
i found L-17 and it looks as if some has been
doing some adjustment to it, there is no wax in
at at all. when i saw that i went ahead and took
it to someone that knew what he is doing, with
radio's. and no this radio was not going to be
an experimental radio, i had plan's for it to
go into my wife's van.
I want to say thanks to everyone who helped. |
Tech548
Moderator
Username: Tech548
Post Number: 176
Registered: 5-2004
| | Posted on Tuesday, July 27, 2004 - 10:57 pm: |
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Bushpilot169
Keep us posted and let us know what your Tech finds with your radio.
Jeff. |
Johnhenre
Junior Member
Username: Johnhenre
Post Number: 45
Registered: 1-2004
| | Posted on Sunday, August 22, 2004 - 9:03 am: |
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TECH QUESTION: I HAVE A DX-44 AND HAVE TRYED A LITTLE OF EVERY THING I KNOW, SO CAN A TECH ANSWER WHAT MY PROBLEM IS? AFTER TRANSMITTING MY RECIEVE AUDIO GOES DOWN SUPER (LOW) THEN IN ABOUT 10 SECONDS IT COMES BACK TO THE ORGINAL SETTING(AUDIO)?THE LONG YOU KEY DOWN THE LONGER IT TAKES FOR THE (AUDIO) TO RECOVER? THIS HAS BEEN GETTING PETTY BAD LATELY,INCOMEING METER SIGNAL IS NORMAL, THANKS IF SOMEONE CAN HELP,ALSO ANONE HAVE ANY SCHEMATIC"S OR INFO, ON A SILTRONIX LA-650 AMP. Bob |
