dnolan747
Member
Hi my name is Dean and I am the owner of 747 Electronics and CB,, and I have on the bench a Power Acoustik TS980-2 with a dead short from 12v positive to ground,,, I dont repair many car audio amplifiers so plz. bare with me...
Customer said that it blows fuses as soon as they are installed so I put 2 new fuses inline without power and checked continuity between positive and negative hookups and yes there is a dead short,,, so I was thinking it was hooked up backwards and blew the reverse polarity diode,, the diode in circuit showed short but when I removed it from the circuit it checked good,, so next I figured shorted power transistor so I pulled each and every one of them and all checked good with a transistor checker... even checked the 2 triodes and they checked good out of circuit...
I am pretty much lost now and am needing some advice
Thanks
Dean A Nolan
747 Electronics and CB
Customer said that it blows fuses as soon as they are installed so I put 2 new fuses inline without power and checked continuity between positive and negative hookups and yes there is a dead short,,, so I was thinking it was hooked up backwards and blew the reverse polarity diode,, the diode in circuit showed short but when I removed it from the circuit it checked good,, so next I figured shorted power transistor so I pulled each and every one of them and all checked good with a transistor checker... even checked the 2 triodes and they checked good out of circuit...
I am pretty much lost now and am needing some advice
Thanks
Dean A Nolan
747 Electronics and CB