Plz send me ssb-120 pa amplifier circuit digram

hook up speaker common wire to com,then hook up the speaker wire to whatever ohm the pa speaker is,regular ones are 8 ohm,stay away from 70 v,plug in a record player or aux in the rca jacks you can use 12 volts or 120 volts

hi.
Did you checked balanced impedance?load speaker impedance vs PA output?or PA might over driven,causing a trouble on the pre-amp to power amp circuits and components damage,
need to recheck related components on the pre-driver up to main output section,

Note: That,blowing of fuses with the same rating is an indication of trouble/shorted in a circuits that driven on it,

Thanks and good luck

microhit

plz send me ssb answer sheet in 07-02-2011 [email protected]

hi,
its with me. if u need the same contact me on my mail.
[email protected]
ok

Hi
try replacing the transistor just before the last on the rf pa output.

Hope this helps

Ray

Hi, If you have small electronics knowledge this might help you. First fine in each mixer the amplifiers line In if your mixer has two amplifiers then you have four line In. Disconnect this line from your mixer and build a circuit Line out multiflier. You can use op amp for this application this is a simple circuit. You made two input and four outputs. If you are interested i can send you a schematic diagram.

if the transmitter produces power output with modulation on SSB but NOT ON AM then the AM Pass Regulator is defective, more times than not.

make sure that the rf gain is turned up all the way.Check diodes D-12&D-13.

Hello, is this a Radio Shack PA amp or Jamo amp? The unit is probably in "Protect" mode. Is this a PA system or a receiver...receivers have a protection circuit that will not let the speaker relay activate if the amplifier output section is shorted and sending voltage towards the speakers...so they won't fry!!The speaker relay should activate within 3 to 5 seconds if your output section is ok.

barneyluc

You should be able to find the service manual for your set at the following link and it should include part numbers for the items in question. http://www.servicemanuals.net/