No the board looks like new no darkened area. Shall I leave C226 and D204 out of the circuit when I remove R274 or put them back in first?
No the DC voltage stays and the speaker pushes out hard and stays and the amp draws alot of current.
Unsure of how you wanted probe config but they both read exactly........
2.767 vdc
When the probes are reversed they read ~2.767 vdc
Clip your meter probes directly across the two 0.1 ohm source resistors (one at a time) and connect a speaker or dummy load just long enough to see if the meter changes from 0.000 to something greater. Let me know what you find.
Are Q223 and D207 the original parts? If not, are you sure you replaced them with the correct components?
Are Q223 and D207 the original parts? If not, are you sure you replaced them with the correct components?
I tested across both emitters while connecting a speaker and found
-0.195 vdc
-0.215 vdc
Amp draws current and pushes speaker all the way out.
Last edited:
Yes the dc dropped down to ~1.551
Its hard to tell the components are so small, but using my heat gun and monitoring that little area, it seemed that D205 was getting the warmest compared to everything else but not 100% on that as I said components are small its hard to be 100%.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.