The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

hi again
just wondering if anyone has got a soloution to this problem

no worries Dave
shall we start again then lol

Hi Dave Me again the audio chip has a small heatsink behind it i have replaced the audio chip with a new one but the problem is still there the radio is 100% when first turned on but about an hour later the audio starts to go is there any other component what will cause this also i have noticed the ...

Cheers Dave
Thank you for your help
John

Thanks Dave
Merry Christmas
Dave can you please give me the location of the audio chip on the radio
Many Thanks John

Radio Make and Model: superstar 3900 el PCB Number: PLL Number: Test gear available:multimeter Symptoms:very lowTX fm audio What is working:RX audio What has been tried:Nothing Did it suddenly happen ?progressively: Anything else that may be of help?: when the radio is just turned on the audio is pe...

Hi
can anyone tell me if this backlight problem has been fixed with the audio sound coming form the small metal box

Hi Dont know if this is answer is any use to you anymore m8 but i had the same problem the fix is quite easy on the component side of pcb rear middle you will see a small rectangle board held in with six small pins just apply a small solder to the board and pins that should fix your problem hope tha...

Radio Make and Model:Superstar 3900 PCB Number: PLL Number: Test gear available:muliti meter Symptoms:low tx power What is working: What has been tried: Did it suddenly happen ? progressively Anything else that may be of help?: when i key the mic tx power is low approx 2 watts i could tap the case o...

Radio Make and Model: haminternational uk 120ch am/fm PCB Number:dont know but if you could tell me that would be cool PLL Number: LC7120 Test gear available:volt meter Symptoms:hi rx level on s metre What is working:everthing What has been tried:nothing Did it suddenly happen ?: since i bought the ...

Thanks 4 the reply m8
ach well

Hi guys is it possible to do a 10khz switch on a haminternational uk 120 am/fm rig? its to get full 40 uk FM.

thanks for the info m8 trimmed the tc5 and it seems to work so thanks again (for your info it was just mid band fm)

Radio Make and Model:Ham international uk /same rig as Colt 444 PCB Number: PLL Number:LC7120 Test gear available:Volt metre Symptoms:out of frequency on FM What is working:All other modes What has been tried:nothing Did it suddenly happen ?:just bought rig Anything else that may be of help?: compon...