Here's a follow up image from my first post on this Bally 1978 Playboy machine. I've opened the backbox and the mpu looks like this (mainly corrosion on bottom). The light blinks
Antique & Collectables Section 8 The Auction Barn
Sold Price: VINTAGE PLAYBOY PINBALL GAME, 1978 BALLY FULL SIZE - October 4, 0120 6:00 PM EDT