I've just taken a Roberts R9993 radio in which isn't working, the normal suspect is a B772 power transistor (Q3) has blown. Anyway I've opened this one up and found the transistor (Q3) has blown and taken the pcb with it uderneath all the way down to the fiberglass and has lifted it up around the immediate area.
Diode D3 on the board has blown too, some of the tracks are still there but my question is what can I use to make the pcb good again and replace the transistor (Q3). I know I can repair the track going to R9 on the board and R19 too but I just need advice what to use to repair the damage board. Any advice and help appreciated
Diode D3 on the board has blown too, some of the tracks are still there but my question is what can I use to make the pcb good again and replace the transistor (Q3). I know I can repair the track going to R9 on the board and R19 too but I just need advice what to use to repair the damage board. Any advice and help appreciated
Attachments
-
541 KB Views: 21
-
531 KB Views: 21
-
554.8 KB Views: 21
-
1.1 MB Views: 22
-
2.1 MB Views: 22