Re: Apple Lisa CRT replacement?

So no vertical deflection. I'd start by checking the yoke for continuity, and the video board for cracked solder joints. Like I said before, nothing on the gun connections could cause vertical deflection to fail.

Had you ever seen this Lisa display an image properly?

-J

On Wed, Jan 17, 2018 at 1:21 PM, <austjeremy_at_email.domain.hidden> wrote:

> Yes, it was squashed down to just a horizontal line, but the line was
> thicker then a hairline. I did use the deflection yoke from the Lisa. This
> is a green green, not white like the regular Lisa screen. I think the pins
> are arranged differently then the Lisa CRT.
>
> On Wednesday, January 17, 2018 at 2:50:06 AM UTC-8, austj..._at_email.domain.hidden
> wrote:
>>
>> I just purchased a Lisa with a broken screen. I would rather not purchase
>> an expensive CRT on eBay. So, I figured I will just use what I have on
>> hand. The closest thing I have is a green monochrome CRT. It has the same
>> number of pins, and is exactly the same size. It also from Clinton. The
>> part numbers are:
>> 1. CE745Z12K31VR
>> 2. CEULC99F1ATE
>>
>> I'm pretty sure the pin out is different. I figure this after it just
>> showed a line during startup. lol
>>
>> Lisa
>> 1. Green
>> 2. Yellow
>> 3. Brown
>> 4. Black
>> 5. White (Ground)
>> 6. Red
>> 7. Blue
>>
>> Donor:
>> 1. Empty
>> 2. Blue
>> 3. Black
>> 4. Green
>> 5. Yellow
>> 6. Red
>> 7. White
>>
>> Are the colors standard? Can I expect this thing to work if I just
>> reroute the wires to match the colors on the donor CRT? Instead of hacking
>> the Lisa video board. I was thinking about using breadboard wires with
>> pins, and connecting them to the Lisa CRT connector. I would then rout the
>> wires from there to a connector with the wires going to the proper pins. If
>> it works, then I would solder things in place.
>>
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-- 
Jason Perkins
313 355 0085

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