You are here

1745M service manual needed

Login to Post to Forums

You must be logged in to the Eventide website in order to post to our forums. If you do not have an account, you will need to create one. You may also reset your password.

7 posts / 0 new
Last post
Lincoln989's picture
Lincoln989
Joined: Apr 15 2020
Posts: 6

1745M service manual needed

Lincoln989
April 15, 2020 - 12:39 pm

I know this falls under longshot-ism but I've had a lovely old 1745M delay line on my shelf for a few years now and been too busy to look at it. However the world changes and I thought now was the time to try and bring it back to some semblence of its former glory. I've done a few H910s and it looks built on the same lines but whereas the H910 has a fairly acquirable manual, this one doesn't. Maybe the pic shows it's missing one or two front panel bits too, notably the red LED diffuser and fuseholder.

Anyway if there's anyone there at Eventide or reading this with a handle on a Service Manual with schematics or/and spares or just servicing knowledge I'd be super grateful. I'm in the UK btw so that would be even better. Happy to pay reasonable costs.

Lincoln

SW London

AttachmentSize
Image icon sm1745m-2.jpg124.64 KB
rfactor's picture
rfactor
Joined: Jan 15 2008
Posts: 10
rfactor
April 15, 2020 - 09:49 pm

Hi!  I was able to find a scan of the original manual and put it on my web site.  http://priups.com/manual-archive/1745m.pdf  I'm not sure it's complete.  I think some pages were too large to scan.  Hope it's helpful.

Richard

Lincoln989's picture
Lincoln989
Joined: Apr 15 2020
Posts: 6
Lincoln989
April 16, 2020 - 06:25 am

Thank You, Thank You, Richard!

That is the best news I've had all week.

Wishing you and your amazing company all the best.

I'll update if and when I get the thing running.

Lincoln

Lincoln989's picture
Lincoln989
Joined: Apr 15 2020
Posts: 6
Lincoln989
May 21, 2020 - 10:56 am

Well I got it working. Woohoo. A few logic chips and a RAM. Now I have a question for anyone who has one of these or remembers the detail. Two questions actually:

1: Does anybody have the Harmoniser schematic that was not included in the original manual as it was a later add-on?

2. The Harmoniser has a switch that looks like it should be a 3 position toggle. It's labelled Delay (top)/Flange (middle)/Pitch (bottom). Only it only seems to work in 2 of the positions despite being a 3 position toggle on my unit. Should it be a 3 position (one side is biased on mine) or, as I suspect, a 2 position and the front panel labelling is misleading. It certainly doesn't produce a 'Flange' effect but then again it might not be fully functional! I've never read that these could flange so maybe it was an idea that never made it off the drawing board? Since I'm refurbing it I might as well put in a new switch since my one is a bit bent. I'd love to know what it was originally- 2 position, 3 position, biased one side or no bias.

Incidentally, looking at the pcb tracks it doesn't look like a 3rd position/function was actually possible since 2 of the pcb pads are unused.

Oh, final question- 3. My unit has the red plastic LED filter panel missing. I'm resigned to having one custom made but if anyone knows of a spares stash that might have one. I know it's a long shot. I'm in the UK and happy to pay of course.

Thanks in advance anyone.

 

Lincoln

Attachment
jagulow's picture
Check out my Eventide Gear
jagulow
Joined: Apr 24 2013
Posts: 22
jagulow (My Eventide Gear)
June 28, 2020 - 09:34 am

Linc-

My 1745M was DOA when I got it. I sent it to Dane Beamish, Beamish Electronics, 4560 State Rd # A, Cleveland, OH 44109. 1 (216) 351-9599. DBeamish@aol.com He revived it AND he is a plethora of knowledge on the 1745M. 

jagulow's picture
Check out my Eventide Gear
jagulow
Joined: Apr 24 2013
Posts: 22
jagulow (My Eventide Gear)
June 28, 2020 - 09:55 am

Linc-

I found this in an search. It shows the LED readouts for the Pitch Change Module (PCM) of a 1745M. Hope it helps you.

John

Attachment
Lincoln989's picture
Lincoln989
Joined: Apr 15 2020
Posts: 6
Lincoln989
June 29, 2020 - 05:34 am

jagulow wrote:

Linc-

My 1745M was DOA when I got it. I sent it to Dane Beamish, Beamish Electronics, 4560 State Rd # A, Cleveland, OH 44109. 1 (216) 351-9599. DBeamish@aol.com He revived it AND he is a plethora of knowledge on the 1745M. 

  Hey thanks John. I'll get in touch with him. Awesome.

 

Lincoln