Hi guys,
here is my crazy story. I'm building a supergun with a MV-1FZ. Initially, the MV-1FZ had working audio with some problems:
- it was very low,
- it was impossible to turn the MV-1FZ volume up, because sound spikes would immediately shut down the sound completely (up to the next cold boot).
Reading on the forum, I decided to change Caps.
I bought the following:
9x 4.7µF100V 105C
4x 470µF25V 105C
4x 100µF63v 105C
(I hope, I didn't make a mistake here since I'm no expert in circuits).
I carefully, replaced all the caps by making good soldering on TOP and BOTTOM of the board for each capacitor. I also double checked the connections after the capacitors were installed.
(I can post detailed pictures of the board if required)
I cleaned the working sections with anti-flux. Everything looked shiny to me.
When I connected the MVS to the supergun, I did the following tests (in temporal order).
1) MVS sound test. Worked.
2) Started a game. No Sound.
3) MVS sound test. Worked.
4) Cleaned the cartridge and started the game. No sound.
5) MVS sound test. NOT Working anymore.
And now, I have completely no sound at all.
Guys, what the hell is going on? This stuff is making me crazy. Please help me.
Thanks.
Edit:
1) I changed all the caps with high quality Rubycons. The problem persists. I'm building a stereo mod to test the audio processor.
2) Built an MKL circuit. I don't get any sound from Ch1, Ch2 or Ch3 points on the board (see the StereoFix docs for more details), could be the audio chip
here is my crazy story. I'm building a supergun with a MV-1FZ. Initially, the MV-1FZ had working audio with some problems:
- it was very low,
- it was impossible to turn the MV-1FZ volume up, because sound spikes would immediately shut down the sound completely (up to the next cold boot).
Reading on the forum, I decided to change Caps.
I bought the following:
9x 4.7µF100V 105C
4x 470µF25V 105C
4x 100µF63v 105C
(I hope, I didn't make a mistake here since I'm no expert in circuits).
I carefully, replaced all the caps by making good soldering on TOP and BOTTOM of the board for each capacitor. I also double checked the connections after the capacitors were installed.
(I can post detailed pictures of the board if required)
I cleaned the working sections with anti-flux. Everything looked shiny to me.
When I connected the MVS to the supergun, I did the following tests (in temporal order).
1) MVS sound test. Worked.
2) Started a game. No Sound.
3) MVS sound test. Worked.
4) Cleaned the cartridge and started the game. No sound.
5) MVS sound test. NOT Working anymore.
And now, I have completely no sound at all.
Guys, what the hell is going on? This stuff is making me crazy. Please help me.
Thanks.
Edit:
1) I changed all the caps with high quality Rubycons. The problem persists. I'm building a stereo mod to test the audio processor.
2) Built an MKL circuit. I don't get any sound from Ch1, Ch2 or Ch3 points on the board (see the StereoFix docs for more details), could be the audio chip
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