Quoted from Stebel:You have to confirm that your board actually has the wrong resistor values. My monopoly has the correct values and it is a factory board, no work done to it.
No sense sending out a board for no reason.
Quoted from FLASHBALL:Good point. Just checked mine and I also have the correct resistors.
My only issue is that the sound is still too loud. Even on the lowest setting. I was hoping maybe changing the resistors would help.
Yes, the resistors that are listed in the manual would be correct ones from the factory; subsequently, it has that loud hum during attract mode. If you go back and read the service bulletin, the fix was suggested when bringing the game into the home market:
Undesirable hum and some audible distortion
when the volume is set below Level 4 in the
Volume Menu (accessed by pressing the "Red" Button first of the Service Switch Set on the
Coin Door; Level Range is 0 - 31).
Due to the large number of games being sold in the "Home Market," it was brought to our attention that at very low volume
settings, there is an undesirable hum in the audio. To eliminate the hum (at very low volume), we are suggesting two (2) Resistor changes which will reduce the gain of the amplifier, however, will ensure the proper balance between the upper and lower channels are intact.
Note 1: This will reduce the overall loudness of the game; you will need to set the Volume Level higher to achieve the same level you had before.
Note 2: This update on the CPU/Sound Board (SPI Part Number: 520-5136-16) is backwards compatible, though you may have to TURN UP or DOWN the factory default volume setting depending on the game.
Have a qualified technician change R110 to a 33K 1/4 Watt Resistor and change R106 to a 10K 1/4 Watt Resistor
Hope this clarifies things.