| Author |
Message |
    
Rascal853
New member
Username: Rascal853
Post Number: 5
Registered: 2-2004
| | Posted on Saturday, March 25, 2006 - 6:31 am: | 
|
i have been tinkering with this radio and replaced a few parts but still does the same thing radio when i key the radio has no power or modualtion and the lights and channel display blink repeatedly, almost like radio is not gettin enough power, also have tryed to run it on 12v power supply with the same results, thanks for any help |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1346
Registered: 9-2004
| | Posted on Saturday, March 25, 2006 - 11:05 pm: |
|
try replacing C179 (a 2.2uf tantalum cap located near the final and driver)
replace it with a 2.2uf ELECTROLYTIC capacitor.
rated at 16 volts or more.
that should cure your problem.
matt |
Rascal853
New member
Username: Rascal853
Post Number: 6
Registered: 2-2004
| | Posted on Sunday, April 16, 2006 - 4:03 pm: |
|
matt i replaced that cap and everything worked fine thank you for all your help
dennis |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1437
Registered: 9-2004
| | Posted on Sunday, April 16, 2006 - 10:21 pm: |
|
ha ha! success!
aint that a great feeling?
and you now know more about the inside of your radio than if you'd taken it to a tech.
congratulations on a successful repair!
matt |
Euhara
New member
Username: Euhara
Post Number: 4
Registered: 3-2008
| | Posted on Sunday, March 16, 2008 - 3:13 pm: |
|
More success on 139 xlr never would have thought of c179 to cure my problem with transmit. Got that fixed so I'm gaining. Now I have a carrier on ssb. Bought this radio dead and trying to bring it back to life. So far so good. Anyone have any Ideas on the one that just revealed itself? Everything else works fine. Thanks Matt |
Dale
Senior Member
Username: Dale
Post Number: 1330
Registered: 12-2002
| | Posted on Sunday, March 16, 2008 - 8:22 pm: |
|
try adjusting your ssb balance.im unsure
what the vr number is right off hand but
thats were id start.if ya need the vr post
back ill try 2 find.im sure others here can
may even know
dale/a.k.a.hotrod
cef426
cvc#64
|
Euhara
New member
Username: Euhara
Post Number: 6
Registered: 3-2008
| | Posted on Monday, March 17, 2008 - 3:38 am: |
|
Thanks Dale, I tried that the VR# is vr4 and has no effect, also the vr is good and working.Seems like a weird problem, all the ic's are good the carrier is there which shouldn't be but doesnt actually modulate anything. My watt meter shows a swing to 18 watts output on AM but no one can hear me it seems like nothing is really going out the antenna but i'm sure it is putting out some kind of signal. Everything lines up frequency wise and tunes up good, The receive is great. Thanks again, anymore ideas anyone?? Thanks Jim |
Sdc1342
Junior Member
Username: Sdc1342
Post Number: 23
Registered: 12-2003
| | Posted on Thursday, March 20, 2008 - 12:01 pm: |
|
sounds like u got a bad pl259 on your coax cable! |
Euhara
New member
Username: Euhara
Post Number: 7
Registered: 3-2008
| | Posted on Thursday, March 20, 2008 - 2:01 pm: |
|
Sounds like a good place to check but I just made the coaxes and tested them but no short there. Dont think that would cause a carrier to be on sideband mode. Thanks Jim |
