Quoted from ZNET:Tech question. My game's LOWER VOLUME button stopped functioning.
The INCREASE VOLUME button works fine. Stern sent me a replacement volume module, which I installed. Regrettably, the problem persists. The plug appears to be seated and intact.
This is the stock volume control. There is no external volume mod. It's inconvenient controlling the master volume via the flippers and menu selection.
Any suggestions before I contact my distributor?
Open the coin door and press the menu button 6 times to enter switch test. Once here, you can verify the following;
Pressing the
_Menu button displays on screen as input 4
_Volume + displays input 3
_Volume - does nothing (should display input 2)
_Service credit displays input 1 very briefly and exits this test
Press menu one more time to enter the test again.
Now unplug the connector on the board inside the coin-door (shown in picture) labeled "menu buttons".
Now, with a jumper-wire or a paper-clip, you can connect the top pin (where that connector was on that board) and the next pin down after the space (simulating Black wire to Green/grey wire connection)
Then the top one again and the third one down (simulating Black to Green/Violet).
Again for the forth one down (simulating Black to Green/Blue).
Now finally the fifth pin (simulating Black to Green/Black).
When you do this, at the board with the jumper, you should get the same result as if you were hitting the buttons on the coin door ~If your board is bad~.
If not, then the only difference will be that when you connect the top pin and the second pin from the bottom you will see input 2 displaying on the screen ~If you harnessing from the board to the coin-door buttons is bad~. Please reach back if you have any further questions.
If your harness is bad, then it's probably just a bad connection at the pin on one end or the other.
Coin-door buttons (resized).jpgMenu wire colors (resized).jpgmenu connection (resized).jpg