On 2022/12/05 12:54 p.m., Jose Luiz Martins wrote:
He sent me this picture.
That looks pretty good. Those modules are pretty reasonably priced too. Might be a good solution, plus one can buy a spare or two tubes for the future if they ever fail... Does your friend say if he knows if this will fit in a regular 9010/9005 box? Of course he doesn't have one of the units, does he, so not sure if he can answer that... Thanks! John :-#)#
Em seg., 5 de dez. de 2022 17:48, Jose Luiz Martins <joseluizmartins@gmail.com> escreveu:
He told-me, he is now working in a new version for regular LCD modules.
I'll call him later to ask for the update.
JL
Em seg., 5 de dez. de 2022 17:34, John Robertson via Techtoolslist <techtoolslist@flippers.com> escreveu:
On 2022/12/05 11:58 a.m., Jose Luiz Martins wrote: > I know him, he is a very nice guy. > > I have one of this kits, it it's very well made. If you guys have > interesting, I can talk to him to manage a discount for this group. > > > JL
Thanks for the info.
Isn't the problem that our friend in Brazil used the Itron fg326 display? Those are kinda hard to come by. So failing turning up a display, one is looking at a replacement - probably LED.
John :-#)#
> > Em seg., 5 de dez. de 2022 16:53, Tony Jones <tony@tonyjones.com> escreveu: > >> I assume you guys saw this: >> >> https://forums.arcade-museum.com/threads/the-fluke-9010a-club.97717/post-443... >> >> On Mon, Dec 5, 2022 at 11:08 AM Brad Gass via Techtoolslist < >> techtoolslist@flippers.com> wrote: >> >>> I guess I hadn't looked at dot matrix displays because of the cost, but >>> they certainly seem feasible from a technical standpoint. From UT >> Source, >>> the 3416 size red displays are still a lot more than an LCD, but at >> ~$21.14 >>> each, are certainly more reasonable than from Newark. >>> >>> Although I wouldn't fuss over a red versus green display if red were >> lower >>> cost, I did put in an inquiry on the DLG3416 (green) Osram version of >> that >>> display, which would more closely match the Fluke's look. Awaiting a >> quote. >>> So, the question is really - retrofit the existing board with a mezzanine >>> type board (if feasible), or a full-on redesign of the board? Anyone >> know >>> if there is enough 5V rail current headroom to support up to another 1A >> of >>> draw (worst case)? I suspect the safest bet would be to create a new 5V >>> supply for the character modules from the +55V rail used to provide power >>> to the VFD. >>> >>> Thanks, >>> >>> --Brad >>> >>> ----- Original Message ----- >>> From: "Technical Tools Mail List" <techtoolslist@flippers.com> >>> To: "Technical Tools Mail List" <techtoolslist@flippers.com> >>> Cc: "John Robertson" <jrr@flippers.com> >>> Sent: Sunday, December 4, 2022 12:51:39 AM >>> Subject: Re: [Techtoolslist] Designing a 9010 replacement LED display? >>> >>> On 2022/12/01 8:37 p.m., Brad Gass wrote: >>>> There doesn't appear to be small-pitch alphanumeric LED displays >>>> available (at least that I could find) that would work here without >>>> being much too large for the space. There are a couple Noritake Itron >>>> graphic VFD's that might work, but those are going to be expensive, >>>> and don't appear readily available either. >>>> >>>> I think what might be a workable approach would be to use a 40x1 >>>> character LCD module with a reasonably bright backlight. There seem to >>>> be a couple models pretty readily available on the surplus market that >>>> may work out. It's not perfect, and the surplus displays may or may >>>> not support "inverted" displays (light text on black background), but >>>> anything is a lot better than nothing if you have a bum display! But >>>> no matter what the approach, additional design effort would be needed >>>> to capture the segment drive data for each character, decode it into >>>> character data for the LCD, then output it to the LCD module. >>>> >>>> In looking at pictures of the display PCB, this may be retrofit-able >>>> on the existing board with a bit of clever craftsmanship. >From the >>>> schematic, abandon U3 through U10 in place, pick off character clock >>>> (U6 pin 9) and data (U6 pin 7) from the head of the character drive >>>> shift register chain, and get segment clock (U13 pin or U14 pin 3) and >>>> data (U13 pin 2 *and* U14 pin 2) from the segment drive shift >>>> registers. Decode the captured data into ASCII (or custom) characters, >>>> then send them out to the LCD, updating only the LCD character >>>> positions that change between VFD "refresh cycles" to keep the LCD >>>> character flicker to a minimum. >>>> Does anyone know the full "character map" of the 9010? As near as I >>>> can recall, it's all standard ASCII characters but I honestly don't >>>> remember if there was any oddball symbols that might need to be mapped >>>> to custom characters on the LCD. I've been busy with other life issues >>>> and away from the bench for much too long now, but wouldn't mind >>>> working at this a bit if there were others interested in helping out. >>>> >>>> --Brad >>> I did find what appears to be a suitable LED display module, that will >>> fit in the space, but we need 8 of them and they cost around $36US each: >>> >>> >>> >> https://www.newark.com/broadcom/hdlo-3416/led-alphanumeric-display-dot-matri... >>> 8 of them is just over 6.5 inches, and the original space is around 6.75 >>> inches. Height is 0.274" or close enough to the original 0.3" >>> fluorescent digit. >>> >>> They are ASCII coded, and even have 8 user defined characters available. >>> >>> Not so cheap, but with a bit of logic glue possibly a worthwhile fix >>> considering the 9010 is worthless without a display... >>> >>> John :-#)# >>> >>>> ----- Original Message ----- >>>> From: "Technical Tools Mail List" <techtoolslist@flippers.com> >>>> To: "Technical Tools Mail List" <techtoolslist@flippers.com> >>>> Cc: "John Robertson" <jrr@flippers.com> >>>> Sent: Thursday, December 1, 2022 7:47:51 PM >>>> Subject: [Techtoolslist] Designing a 9010 replacement LED display? >>>> >>>> I was looking at my 9005 and grumbling because the tube is missing, >> then >>>> I pulled out the 9010a service manual and you know, it looks like it >>>> would be a pretty easy fix to replace the tube with 32 digit >>>> alpha-numeric LEDs of the correct size on a small PCB and all that >> would >>>> be needed is to replace the UDN6118 fluorescent drivers with suitable >>>> LED drivers and find a place to grab 5V and ground and then mount the >>>> new display to the board... >>>> >>>> Maybe it would work? >>>> >>>> Anyone interested in poking at the KiCAD layout? I have no free time, >>>> but I know there are folks out there looking for a solution to bad or >>>> weak tubes... >>>> >>>> Here is the page: >>>> >> ftp://ftp.flippers.com/TTL/Test_Equipment/Fluke/9010%20Series/9010_Fixture%20PDFs/9010A_Display_Schematic.pdf >>>> < >> ftp://ftp.flippers.com/TTL/Test_Equipment/Fluke/9010%20Series/9010_Fixture%20PDFs/9010A_Display_Schematic.pdf >>>> >>>> John :-#)# >>>>
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com <http://flippers.com> "Old pinballers never die, they just flip out"
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-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out" _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ftp.flippers.com/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/