Hello everyone.
I have a punch 200ix that had a fried power supply and a channel with 2 shorted outputs. I repaired the power supply and the channel.
The amp plays great and sounds great for hours on the bench with no issues.............but
When you power up the amp with no RCA signal it draws current and the repaired channels starts to get warm, especially R157.
Why would the amp be fine with a signal hooked up and not fine without a signal hooked up?
I have a punch 200ix that had a fried power supply and a channel with 2 shorted outputs. I repaired the power supply and the channel.
The amp plays great and sounds great for hours on the bench with no issues.............but
When you power up the amp with no RCA signal it draws current and the repaired channels starts to get warm, especially R157.
Why would the amp be fine with a signal hooked up and not fine without a signal hooked up?
Do you see any oscillation on the speaker output terminal for the channel heating up?
What's the board number? I think there are at least 3 different versions.
Board number PC-0776-C
Do you mean view the channel through the scope? I dont think I have viewed oscillation before and not sure what I am looking for. What settings do you reccomend on the scope?
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- General Interest
- Car Audio
- Punch 200ix