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Radio Make and Model: Super Star 121 PCB Number: ept120112z PLL Number: mc145106p Test gear available: 30 mhz scope, voltmeter, frequency meter Symptoms: radio turns on meter lights , green rx light on, keeying mike for transmit red light does not turn green remains on What is working: light on mete...

Thanks Rick I have already proged around on the board with a plastic tool to see if there were any spots that maybe were a cold joint couldn't find any, the radio works perfect except for the recieve, only can hear nearby stations or mobiles .

Thanks for the reply

Thanks Rambling MAN I have done some RESEARCH and the superstar 121 schematic is very close if you could point out which to check on that schematic I can check the diodes out


Many Thanks

poor old South Ga Boy

Need help with a superstar 3000 board ept120111z , recieve is not up to par close by stations come in loud and clear and distant stations you have to turn volume wide open to and still you can't hardly hear them. also does anyone have an idea where a schematic can be located, any help will be apprec...

alright rick where you at

I have been attempting to repair a radio for my friend it is a superstar 3300.ept360012b board. when I got Radio it had no transmit or recieve, put close to another radio and it made the other radios needle move a little so I decided to replace Transistor 41, transistor 51, and also audio amp got th...

ok rick I done some research the coly 510 is the same radio as the colt 222 without the 120 channels same board,

I have a colt 510 that had no recieve s meter worked great replaced audio amp and got audio back now radio has a burp or almost a roger fart after you transmit and let off the mike after your transmission, any ideas

what is the best mod so that I can get some heavy swing out of this connex 3300 and keep good loud audio

thanks rick when I went to take d-23 out of circuit I pulled the wire out of the glass part on the 1n60 diode that was what the problem was replaced worked great recieve back again full blast thanks again I have some tough dogs we will fix them later

very low recieve, the s meter works fine printed circuit ept360014b

yes I have tried another radio on this antenna works fine, also tried plugging an external speaker still a very low volume

I have a connex 3300 that has very low recieve volume, I have replaced audio amplifier, checked transistor17 checked diodes 23 and 24 also checked diodes 15& 16, any body have any ideas