Dilog DQ614 - Third Chapter

On Jan 6, 22:32, SP wrote: If that was me, I picked the wrong chip. The one that's usually changed, to give a different address, is the PROM at U38, 91265D -> 91578A. Those all look standard to me. Anyone else got a DQ614 to compare? It might work. It might not. The DEC diagnostics make use of specific facilities in the RLV (QBus) controllers that aren't in the RL (Unibus) controllers, and may or may not be in a 3rd party device. The early diagnostics only cover RL01s and RL11/RLV11: ZRLA?? Controller Test Part 1 ZRLB?? Controller Test Part 2 ZRLC?? Drive Test Part 1 ZRLD?? Drive Test Part 2 ZRLE?? Performance Exerciser ZRLF?? Compatibility Test where ?? means any revision (a single letter) and any patch level (single digit), as usual for XXDP. The Performance Exerciser would probably work *once the disk is formatted*, as it just does a lot of read/write/seek tests. The compatibility test is pointless for a DQ614 as it tests moving packs between drives. The later diagnostics are for RLO1s or RL02s and RL11/RLV11/RLV12. There's an extra program to allow you to read and write the Bad Sector Table which exists on a real RL02: ZRLG?? Controller Test Part 1 ZRLH?? Controller Test Part 2 ZRLI?? Drive Test Part 1 ZRLJ?? Drive Test Part 2 ZRLK?? Performance Exerciser ZRLL?? Compatibility Test ZRLM?? Bad Sector Utility Finally, there's a pair of diskless tests written specifically to cope with differences between Unibus and QBus controllers: VRLA?? Diskless Test 1 VRLB?? Diskless Test 2 -- Pete Peter Turnbull Network Manager University of York