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Re: Searching for Information
开云体育FYIAttachments (Photos or schematics eat..) are not permitted on this list for spam and virus protection purposes. ? Please send photo directly to the person or post them in the photos section of this list and then follow up with a post with the link to the photos.
Best Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: |
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Re: SAE D102 Display Completely dead
开云体育The eject issue is the belt hardened into its normal resting position. Replacing the belt fixes it . . .On 8/15/2019 8:38 AM,
davidaldridge8@... [SAE_Talk] wrote:
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Re: SAE D102 Display Completely dead
I just grabbed another D102 on Ebay. Perfect working display. Only issue is "Sometimes it won't eject"...No biggie. It is a earlier model with no digital out....oh well. Maybe I can swap everything literally and get a perfect digital unit? We will see in a week. I WISH you could recall the display mod you mentioned about the 10 ohm 1 watt resistor!
Thanks much. David in TX. |
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Re: SAE D102 Display Completely dead
I tore the D102 apart tonight. I looked at the display module. I resoldered many joints. No work. The module covers all that isn't working, but again, as you are aware, all the functions work great. This must be a later model, for I am running coaxial digital out into a outboard A/D converter.
The impossible search is on. David |
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Re: Searching for Information
开云体育FWIW, I have two C-101 Cassette Decks, that needed both belts and idler tires. I found that the transports are either Matsushita (w/Mitsubishi motors) or Mitsubishi. The one resource that might be the easiest is Pacific Stereo, a spin-off of the defunct So. Calif. audio retail chain that's now a parts/info resource. You can also send your old belts, and complete idler wheels (without removing tires) to Russel Industries to be eye/hand matched.If you really strike out, you can take your idler wheels w/tires to a seal/O-ring supply house for matching; however, you may have to buy a minimum quantity of 25 or so @ 5-10 cents each. That's cheap, if you factor in what your time is worth, not to mention shipping and/or fuel driving around to hopefully find what you need. ???? On 8/10/2019 5:31 AM, Joe Schaub
schaubjoe@... [SAE_Talk] wrote:
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Re: SAE D102 Display Completely dead
Thanks. I had read somewhere it is the display driver IC that fails, and according to the service manual the hex inverter driver IC is a LS7404 which can still be found. Guess I will pull the front panel, remove the PCB and look around. Believe I read somewhere on another piece of their gear they over drove the display, and resistor values were changed from 180 to 270 ohms.
Doubt I will find a burned trace....be lucky. If I happen to a resistor certainly go across it. And yes, the rest of the unit works fine. I did notice the "Repeat" light does not work in the display. Nothing does. Thanks again. David |
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Re: Searching for Information
Joe Schaub
开云体育I do not have photos, I do have the schematic. I appreciate your help. ? From: SAE_Talk@... <SAE_Talk@...>
Sent: Monday, August 5, 2019 3:12 PM To: SAE_Talk@... Subject: RE: [SAE_Talk] Searching for Information ? ? if you still haven't gotten the info by Thursday I'll help out with pictures. I have three units - one of which is in daily use, so I'll take photos first, then take the 2nd apart to see where the belts go since i I have to replace the belts and I have the belt kit (it's about time) Do you also have the schematics? ?IDK about my 3rd deck:-/ Richard in Murrieta, CA ?
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Re: Searching for Information
Joe Schaub
There are three belts, one for the slide drawer is easy the other two are sketchy.
From: SAE_Talk@... <SAE_Talk@...> Sent: Tuesday, August 6, 2019 9:20 AM To: SAE_Talk@... Subject: [SAE_Talk] Re: Searching for Information Joe, if you could post a picture, or sent it to me in an email, I think I can help you out. I worked on a ton of cassette decks from that era, and it’s likely SAE used a mechanism that was also used by other manufacturers. [Non-text portions of this message have been removed] |
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Re: Searching for Information
开云体育if you still haven't gotten the info by Thursday I'll help out with pictures. I have three units - one of which is in daily use, so I'll take photos first, then take the 2nd apart to see where the belts go since i I have to replace the belts and I have the belt kit (it's about time)Do you also have the schematics? ?IDK about my 3rd deck:-/
Richard in Murrieta, CA
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Re: Searching for Information
Joe Schaub
开云体育Thanks for the reply. I have found a set of belts, my problem is how do they go in around the idlers. There seem to be two for the drive. I was hoping to find a picture of them installed. ? From: SAE_Talk@... <SAE_Talk@...>
Sent: Monday, August 5, 2019 12:59 AM To: SAE_Talk@... Subject: Re: [SAE_Talk] Searching for Information ? ? ? If you have the old belts, you can start with measuring them. ?Broken belts after being cleaned can be glued end to end with super glue to help make the measurement. ?What you want is to measure the diameter (round) or side (square) belt and it length stretched. ?You measure the length with about a 1/4” spacing between the two belt side. ?Typically there was a tool that mad these measurements for you but I do not know where to find them today. ?I have not looked. ?Anyway with the length and diameter, you should be able to find a replacement belt. ? ?
? Best Regards, ? Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: ? ? ?
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Re: Searching for Information
开云体育
Best Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: |
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Re: Mk 30 and 31B service
开云体育Craig is a great technician. He’s repaired 4 of my components. Couldn’t be happier. Joe ? --? ? |
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Re: Mk 30 and 31B service
开云体育Jim, I have have good success with Craig Tathwell, Apple Valley Audio repair in Apple Valley, Ca. as he not only repairs but knows the recommended upgrades for them. He’s done three for me with good success.?On Jul 31, 2019, at 10:49 AM, Jim Moran jimmoran70@... [SAE_Talk] <SAE_Talk@...> wrote:
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Re: Mk 30 and 31B service
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toggle quoted message
Show quoted text
Hi
Jim...
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Both of those
units are excellent products and continue to perform well even though they are
vintage Bongiorno Designs.
?
As one of
JamesB's primary Service Centers we would be more than happy to assist you with
your restorations. James was not only a personal friend but also a mentor. My
Company was associated with James through most all of his Companies. If you
would like to discuss our Restoration process please feel free to give us a call
at (952) 894-5580. If you have the original manuals you will find us listed
therein as a Service Center.? Our facility is located in a southwest suburb
of Minneapolis, MN.??? Mark - Absolute Sound labs (Audiosonic
Service).
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Re: SAE D102 Display Completely dead
开云体育Do you have any info or photos of the display, board and board modifications? ?Those displays were made by someone and likely were a “standard” part with others likely to have same or similar pinout and function but not necessarily the same digit size or shape.Tracking down said module may not be easy after all this time but with the internet, who knows? If there is an SAE manual or parts list, maybe they did not use an internal part number? Bartley Yee On Aug 2, 2019, at 9:25 AM, 'M. Nye' mpnye@... [SAE_Talk] <SAE_Talk@...> wrote:
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Tom Jacob