Thanks for the reply. I was able to find a schematic for it online (along with about 100 other Otari tech dosuments). Running the line back from the AC input the black wire definitely goes to chassis, brown and white to the top of the power switch. Bottom line the unit is up and operational...
My company purchased a vintage Otari MTR-90 MKII. It came without a power cord, so we had to rewire. It came with a 3-pin plug with a twist locking ring. The unit tag said it's 117V single phase. When lookling at the wires I notice they are Black, White, and Brown, not a color cose I'm...
I work for a media archiving company digitizing older media. We have an inventory of approximately 35 Tascam 122MKIII cassette players. I learned today that many of the parts which commonly fail are no longer in production with no spares available. To continue consistent production we need to...
Sounds more than reasonable. This is not a personal machine. We have several we use for archiving. When demand slows I'll pull it for refurb and reference this post. Right now I'm hoping to put it back to catch up on production. I really appreciate the help I get from this site. I've never...
I have not replaced anything at this point. I tested all day yesterday by leaving it powered off for several hours, then turning it on by moving the left sensor up one click to activate the capstan motor. It came up every time. I left it off overnight to ensure it was "cold" then tried it...
I have a Studer A810 with an unusual problem. When cold the capstan motor stalls. I've cleaned and lubricated it (newest version capstan motor w/large bottom clip, Studer PDP65 synthetic capstan oil) thinking there may be too much resistance when cold. The capstan seems to move freely, but...
Yes, I had already found the switch, but as you say this is for each and I see it on both. It could be the up-stream signal isn't switching these so they're set at a default. Doesn't hurt to look.
I have a Studer A807 with an odd EQ issue. I have a deck capable of 3.75ips, 7.5ips, 15ips. It's one of 13 I maintain. During preventive maintenance I noticed the EQ was dipping in the mid-range on both channels. I immediately thought it was a head problem since we use these daily to archive...
The company I work for archives media for colleges and other collectors. For VHS we use broadcast quality Panasonic AG-DS840/850s. Lately were having problems getting pinch rollers which is a very common repair with these. I thought I would ask if anyone here may have a source. I appreciate...
I have an unusual (to me) problem with one of my Studer A807 decks. On both the 3.75" and 15" speed the mid range has dropped out. I get a flat response for, 32Hz-1KHz and 10KHz to 20KHz, but the mid frequencies are around -8db. The 7.5" EQ looks great. I've tried two different MRL tapes and...
I have a Tascam 122MKIII which had a bad idler tire. I replaced it, but now I'm having a problem. When I attempt to play a tape it plays for a few seconds then stops. It also does this in FFW and REW, each moves for a second or two then stops. The tape isn't bound up, but free and easy to...
We have three Sony 1" C-Type VTRs (BVH-2000). These normally come with proprietary stands. Were looking for either their proprietary stands or heavier duty equipment rack s where the mounting rails are flush with the front of the rack. We've tried several racks, but they had recessed mounting...
I've found the problem. I had noticed the left tension assembly was more loose than the right side, but could not see anywhere to tighten it. I decided to look at the underside pivot point. While tilting the player to get to the bottom panel for access I heard a part drop inside. After...