asteroidsNut Active member VAPS Joined Feb 27, 2011 Messages 553 Reaction score 66 Location Las Vegas, Nevada Aug 12, 2011 #1 I have a Galaga that makes a constant heart beat sound out of the speaker. All original game except is has a switching power supply. Any help would be greatly appreciated.
I have a Galaga that makes a constant heart beat sound out of the speaker. All original game except is has a switching power supply. Any help would be greatly appreciated.
mrbill08 Well-known member Donor 5 years: 2014-2015, 2019, 2022-2023 Joined Mar 24, 2008 Messages 4,150 Reaction score 441 Location Illinois Aug 12, 2011 #2 Try replacing the electrolytic caps in the audio amplifier circuit if you have not done so already. Bill
Try replacing the electrolytic caps in the audio amplifier circuit if you have not done so already. Bill
OP OP asteroidsNut Active member VAPS Joined Feb 27, 2011 Messages 553 Reaction score 66 Location Las Vegas, Nevada Aug 12, 2011 #3 C20, C21, and C22. Ok, I'll give that a try and let you know. Thank you. mrbill08 said: Try replacing the electrolytic caps in the audio amplifier circuit if you have not done so already. Bill Click to expand...
C20, C21, and C22. Ok, I'll give that a try and let you know. Thank you. mrbill08 said: Try replacing the electrolytic caps in the audio amplifier circuit if you have not done so already. Bill Click to expand...