MARK IV
from 1990 · Desk-top. The last desk-tops, and the widest formats Otari put on the 5050 platform. Dashed cards are wanted.
2 documents held, 2 wanted.
One book for two machines in two different boxes: the cover reads “MX-5050 MKIV-2, BIII-2 Master Tape Recorder Operation and Maintenance Manual”, so the desk-top MKIV-2 and the upright BIII-2 share it. Nine sections over 145 pages — introduction, installation, controls and indicators, operation, maintenance, transport adjustment and parts replacement, audio alignment, specifications, and exploded views and schematic diagrams. The standard-accessories list names the manual itself as OS3-298.
This is the fourth edition, printed December 1997. Most page footers are dated May 1992, and the pages revised for this edition carry December 1997 — moving the last generation's paper trail on this site forward six years from Otari's 1991 series data sheet. The copy has a text layer and is searchable.
Otari form OA-321C, © 1991, four pages for the Model 5050 two-, four- and eight-channel recorders: the “MX-5050 Series Configurations” table and a specification grid across the MKIV-2, MKIV-2E, MKIV-4, MKIV-8, BQIII, BIII-F, BIII-2 and BIII-2E, and an accessory list that names the models each part fits. A note on the grid gives the B-III and MARK IV-2 three speeds in switch-selectable 15/7½ or 7½/3¾ ips pairs, with the lower pair optional on the BQ-III, MARK IV-4 and MARK IV-8.
Pages 17–20 of worldradiohistory.com's Otari catalog bundle.
Provenance: mirrored from worldradiohistory.com.
OS3-298 names only the MKIV-2 and BIII-2 on its cover. The other six machines in Otari's 1991 configurations table — the DIN two-track, the half-inch four- and eight-channel desk-tops, and the upright quarter-inch four-channel, mono and DIN machines — have no factory manual on this site.
Wanted — not yet held. Have one? See how to contribute.
The copy held here is the fourth edition, printed December 1997, with most page footers dated May 1992. The earlier editions of OS3-298, the book as it read nearer the machines' 1990 introduction, are not held.
Wanted — not yet held. Have one? See how to contribute.