Instruction manual (OS3-038, Edition 6, September 1984)
Covers the MX-5050BII-2, BII-4, BII-F and BII-2E
Also includes alignment, transport maintenance, parts lists and circuit diagrams.
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Service training binder
Covers the whole MX-5050 line
Service bulletin: DD capstan motor lubrication (June 1989)
Speed adjustment bulletin (TB-5050-001)
Covers MX5050B BII Speed Adjustment
Alignment procedures, BII and MKIII-2 (Edition 2, January 1988)
Covers MX-5050 BII and MX-5050 MKIII-2
Video Images Reference Catalog 1988–89 — Otari listing
Covers MX-5050 B-II, B-II F, BQ-II and MARK III series
Period distributor listing, not an Otari factory compatibility chart.
5050B-II brochure, “Technology You Can Trust” (1983)
5050 B-II data sheet (BP6847K, 1984)
Radio World, September 15, 1986 · scan pages 31 and 36Review
A Houston station builder's user report on the MX-5050BII after years with the earlier machines: LED real-time tape clock, a dual-frequency test oscillator, real schematics at last, awkward heads for editing, and $2,300.
BII service documentation
The instruction manual on this page is Otari's combined book: operation, alignment, transport maintenance, parts lists and circuit diagrams in one binding. The 1988 alignment procedures, June 1989 lubrication bulletin and TB-5050-001 speed-adjustment bulletin are now held. The speed bulletin repeats the manual's section 6.4. Still missing: a revision notice, an addendum sheet, or a later edition than the sixth. One later printing does exist, carrying Otari's Foster City address, but the only copy seen has lost its title page, so its edition number is unknown. If you hold BII paper that is not this book, it is wanted.
Have one? Here is how to contribute.