Stanford Research DG535 Repair Service for EXT CLK/PWR and Rear SwitchesProduct Description Professional repair service for Stanford Research DG535, including external clock power and rear switch repairs, display and related component servicing. Things to Note Appearance: 80 90% new, functionally tested. As a used item, minor scratches may be present. However, all products are fully functional and come with a DOA (Dead on Arrival) warranty. For EU Buyers: The price does not include VAT and customs duties, which are the