Here is my investigation to locate a replacement switch for the remote.
1. Per the schematic, DWG No. 3-12620, Name: Dispaly PCA, Part No PB7JA0A, applied PB-7JAA
SW1-64 and 67 are Otari part number, WH42057, Description LB(C)-22M-095.
2. Per Section 8 of the Otari manual,  PB-7JAB Display PCB Assembly,
Ref Number SW3-10 Desc: Switch, Part Number WH42057. With corresponding Ref Number SW3-10
Desc: Lever, Switch. Part Number KN3002, Notes Vermilion.
From the above part number WH42057 and description LB(C)-22M-095, I get the impression that the
switch is a two piece assembly. One is the switch and the other is the lever (handle). I may be wrong,
as I haven't disassembled my remote to find out!! But I may be right... Please, someone chime in
and correct me if I'm wrong!
Anyway, a search of the description, LB(C)-22M-095 was not successful. Even using a fraction of
the description and searching several of the parts finders was unsuccessful!
Anyway, some wild searching on the net and pictures lead me to some surplus switches which
appear to have very similar looking mounting and lead placements when compared to the
PCB board layout in the manual and the actual solder side of my remote pcb assembly.
So, that lead me to the Tyco Electronics CST Series, Baton Toggle, Multiple Pole switch.
I don't have my micrometer to measure the actual dimensions on the pcb assembly, but they
appear to be worth a much closer look for proper mounting into the pcb assembly.
Anyway, the part number is CST022NK and manufactured by TE Connectivity Alcoswitch.
Digikey has none in stock, but it has an alternate part number, 1437576-2 which is
a TE internal part number.
This is a direct link to TE Connectivity's page:http://www.te.com/usa-en/product-1437576-2.html
Searching for a quantity of either part number CST022NK or 1437576-2 was unsuccessful ... OUCH!!!
However, 4 star electronics an obsolete electronics components distributor http://www.4starelectronics.com/part_se ... 22&x=0&y=0
shows some inventory, as follows:
CST022 Quantity of 34
CST022K Quantity of 9
CST022N Quantity of 65
Another parts house, Harry Krantzhttp://parts.harrykrantz.com/hkrantz.as ... art=cst022
Shows 3000 pcs are available of CST022NK
Shows 26053 pcs of CST022 are available!
From experience, I know 4 star is without question and is a very reliable source.
I don't know about the other two however.
So, perhaps we stand a chance of keeping those remotes alive!!!