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Turn a 100HZ CRT into a 1080i CRT?
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the big E



Joined: 20 Apr 2013
Posts: 1919
Location: speedwell Tn.


PostLink    Posted: Wed Nov 30, 2016 1:35 am    Post subject: Reply with quote


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AnalogRocks wrote:
the big E wrote:
AnalogRocks wrote:
the big E wrote:
AnalogRocks wrote:
the big E wrote:
Heck if I did go to digital it would be either Lcos or if the tech is out laser projection with lcos.

I have a sony sxrd set in my bedroom and love the set just hope the lamp doesn't nuke the blue panel anytime soon.

In my home theater along with my classic game corner crt is staying.


Did you do the cooling mod for the light engine?


No.(did clean what seemed like a ton of dust out of the set before I even put it into service)

I don't use the set much and keep the fan on high to allow for more airflow.
It was a Sony refurbed light engine I got on eBay literally days after getting the set.

Should I do the mod or will it be ok given I only run the set a half hour to an hour tops each night.


I would. As I recall when I looked into it. You needed to cut a vent hole in the light engine and add either a case fan or a fan on the side of the light engine - sorry can't remember which - it was 5-6 years ago I looked into this for a friend.


Ok I will look into the mod and how to do it as I have the old light engine to tinker with(bad blue panel) and soon as I can get a helper I will do the mod to the one in the set(sucker weighs almost as much as my crt Sony set.


Yeah the one I was working on had the "liquid blue" panel


Mine looks like someone pushed on it on the blue panel.(blue halo around the outer edges of the screen)
Not to mention it has a crap load of dust in it.

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[Frankie]



Joined: 16 Jun 2014
Posts: 80
Location: Italia


PostLink    Posted: Tue Mar 26, 2019 11:45 am    Post subject: Reply with quote

Hey, i'm still trying to do so. But i need help: i need to turn on a 32' Inch tv PHILIPS A01E chassis. I've removed the Small Signal Board but i need to bypass the voltage protections to enable the EHT and the other low voltage supplies. Does anyone can help if i explain clearly the project? Like gjaky for example, since i know that he's an engineer and he made a mod for the NEC XG. Any other help, will be appreciated!
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gjaky



Joined: 05 Jun 2010
Posts: 2626
Location: Budapest, Hungary


PostLink    Posted: Tue Mar 26, 2019 1:20 pm    Post subject: Reply with quote

[Frankie] wrote:
32' Inch tv PHILIPS A01E chassis


Can you be more specific, because googling this gives nothing sensible to me. If I am not mistaken this is a different tv from the one mentioned in the opening post because that would be EM5.1E chassis.

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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB
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[Frankie]



Joined: 16 Jun 2014
Posts: 80
Location: Italia


PostLink    Posted: Tue Mar 26, 2019 4:57 pm    Post subject: Reply with quote

Yes, now i'll be:

the Philips CRT that i'm trying to modify is a A02e Chassis. I've unfortunately broked the other one (the EM5.1E) and i've take it to the dump.

The A02e is still a 100Hz CRT and the SSB permits to go 1080i by means of a software mod. Anyway i'm not that much into software and i've tried another way instead of changing the code in the flash of the SSB. I've bought another SSB but from another brand. The SSB i'm talking about is from a 6D85 Chassis from Skyworth. I'm trying setting this thing up by adding low voltages like 5V, 9V and 12V from the supply of the Philips TV to the new SSB board. Then i'v connected the RGB exit of the 6D85 board to the neck board of the TV and the Horizontal and Vertical Deflection to the CRT Deflection Main Board. The problem is that i can't even turn on the TV because there are almost 5 protections that blocks the current to flow.

Do you have some hints to make it flow in order to turn the TV on?

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gjaky



Joined: 05 Jun 2010
Posts: 2626
Location: Budapest, Hungary


PostLink    Posted: Wed Mar 27, 2019 9:00 pm    Post subject: Reply with quote

[Frankie] wrote:
Yes, now i'll be:

the Philips CRT that i'm trying to modify is a A02e Chassis. I've unfortunately broked the other one (the EM5.1E) and i've take it to the dump.

The A02e is still a 100Hz CRT and the SSB permits to go 1080i by means of a software mod. Anyway i'm not that much into software and i've tried another way instead of changing the code in the flash of the SSB. I've bought another SSB but from another brand. The SSB i'm talking about is from a 6D85 Chassis from Skyworth. I'm trying setting this thing up by adding low voltages like 5V, 9V and 12V from the supply of the Philips TV to the new SSB board. Then i'v connected the RGB exit of the 6D85 board to the neck board of the TV and the Horizontal and Vertical Deflection to the CRT Deflection Main Board. The problem is that i can't even turn on the TV because there are almost 5 protections that blocks the current to flow.

Do you have some hints to make it flow in order to turn the TV on?


I'd say this is highly impractical to achieve, even if it is possible at all.
The SSB of the Philips TV is the brain of the unit, nothing happens without SSB knowing or controlling it.

If you are really into "big screen direct view CRT at 1080i" then mating the CRT tube of the TV with the motherboard of a suitable CRT monitor would be a more realistic project -but still not easy, as it would highly depend on the characteristics of the monitor motherboard.

_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB
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