    
Juggie09
New member
Username: Juggie09
Post Number: 1
Registered: 4-2010
| | Posted on Tuesday, April 27, 2010 - 10:47 am: | 
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I was working on the talkback took out d-80 disconnected tr30 wire it worked fine then it quit swinging it would dead key and the rxtx blue light turned pink instead of red afer a while of that it quit all togeather no deadkey I was changing a few transistors like tr38 tr 37 and tr 32 and it restored it to deadkey but still no swing whats the correct way to test these transistors are they pnp or npn I have a sencore tr115 tester but the unit recives real good and the pa works so quess audio chip is ok I need help figuring out what all controlls the modulation on the pc board mabey Im missing somthing if anyone has any ideas Id try anything. thank u juggie09 |
