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Message |
    
Jmichaelp
New member
Username: Jmichaelp
Post Number: 9
Registered: 2-2005
| | Posted on Tuesday, January 10, 2006 - 3:24 pm: | 
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ok, i have t radios that are displaying the same symptoms, (rci 2950,& dx 949) both were peaked and tuned and working great, then all of a sudden they quit transmitting,
the finals have been replaced and also the drivers, on AM i get a very low carrier with no audio, no power showing on a watt meter but signal enough to hear it on a bench radio, and on sideband there is audio, but no signal. i have replaced finnals, drivers, audio chips, IF mixers, and IC 7 on both, with no results.
Any sugestions?
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Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2236
Registered: 7-2004
| | Posted on Tuesday, January 10, 2006 - 4:33 pm: |
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WOW
1 at a time, the galaxy 1st. DOES it RECEIVE normally? WHY was EVERYTHING replaced-a prior problem? or to attempt to fix the current problem? prior to the problems, WHAT was it peaked to, output-wise, carrier & PEP? is it flat out NO audio AM & SSB, or just VERY LOW? what about wattage output on the LOWEST scale-ZERO, NO MOVEMENT AT ALL, or like 1/4 watt? was anything done to it OTHER then turning 'up' the ALC & AM POWER controls? what are the SWR's of the antenna being used? did both radios die immediately 1 after the other? were they being used on the same antenna? |
Jmichaelp
Junior Member
Username: Jmichaelp
Post Number: 11
Registered: 2-2005
| | Posted on Tuesday, January 10, 2006 - 5:21 pm: |
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ok, for the details
starting with the 2950:
i had 2 that were basically parts radios, got one to work with parts from both.
it worked great for about 3 months with about 1.7 swr. after i got it to work i peaked it to about 17 watts AM peak, and 35 watts SSB peak, i put an amp in line with it, and the amp was bad, i took the amp out of line and the radio only put out maybe 10 watts AM & SSB PEP, for about 2 key ups long enough to check my match!
then nothing!
now i have it open on the bench, and on AM it has no wattage or FWD on the match meter whats so ever, but using a bench radio i do hear it key but i dont hear any modulation. and on side band i hear modulation and the rodger beep with some negligable signal. i poke around on the board with a tunning screwdriver near the driver and the signal goes up on the radio im recievine on and it goes way up when i tuch the leg on tr50
as for the galaxy the same basic thing happened about 1 month ago and i thought it was because of a bad jumper and i left it at that.
i really do think its some thing simple but its eluding me........please help! |
Jmichaelp
Junior Member
Username: Jmichaelp
Post Number: 12
Registered: 2-2005
| | Posted on Tuesday, January 10, 2006 - 5:22 pm: |
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yes they do recieve normally |
Milkman21218
New member
Username: Milkman21218
Post Number: 3
Registered: 1-2004
| | Posted on Wednesday, January 11, 2006 - 12:38 pm: |
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I had this problem with A rci2950 and A galaxy dx99v. And in both it was A lose ring around the mic socket under the covers. |
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