Description
AD7533JN is a low cost CMOS 10-bit Multiplying DAC, DIP-16 Package. The AD7533 is a Low cost AD7520 replacement, 4-quadrant multiplying DAC manufactured using an advanced thin-film-on-monolithic CMOS wafer fabrication process. These are used on many arcade and pinball games including Midway and many others. The AD7533JN can replace the AD7520. NOTE: If using these on certain games you need to check out the Bally / Midway service bulletin in the pictures.
Robert Balouskus (verified owner) –
If you have a dead Midway sound board in a video game or pin this is almost certainly (at least part of) your problem.
Search for Bally 7533 DAC failure for the pdf of the official Bally issued correction with machine specific notes.
Remove the offending capacitor, swap in this DAC and enjoy a functioning board!