POWER RELAY MODULE/SIGNAL TIMER BOARD By Matthew Maennche | January 6, 2022 Back to Catalog Parts Boards POWER RELAY MODULE/SIGNAL TIMER BOARD Part Type: BOARDS OEM Number: 77922-69473 Alt OEM Number: EPC-13738 Machine Type: SONOS 4500/5500/7500 Manufacturer: PHILIPS Product Inquiry Form Your Name (required) Your Email (required) Inquiry Product Name Your Message