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How to use SCART for our hobby
adder:
--- Quote from: Locke141 ---Now my questions is what should I be aware of when buying one?
--- End quote ---
try to get one which has the original remote control included, as you may need to use it to get into the service menu to make adjustments (or try to ensure the remote control you require is available on ebay)
try to get a decent brand tv: eg. sony, JVC and panasonic are all excellent brands
getting a decent/well known brand tv means you are more likely to be able to find its service manual online, which will detail things like the service menu (how to access it) and the possible adjustments you can make (eg. horizontal size/position, vertical size/position, etc)
and if possible try to avoid a tv on its 'last legs' .. of course that's not always easy though, as many old school CRT TV's are now around 20 years old
Locke141:
--- Quote from: Paradroid on June 15, 2015, 07:02:57 pm ---
Tanzania... I never knew they had SCART there! My 3 months in Berlin where heaven for SCART hunting but I didn't have enough money left to ship any back home... :(
Good luck!
--- End quote ---
Yea SCART is not an official standard here but so many TV have be brought over by expats and I would imagine that the worlds back stock of crt TV's got shipped here. I don't think there is much hope of finding the original remote. How about a universal replacement remote?
--- Quote from: adder on June 15, 2015, 07:43:19 pm ---
and if possible try to avoid a tv on its 'last legs' .. of course that's not always easy though, as many old school CRT TV's are now around 20 years old
--- End quote ---
Believe it or not, you can still buy new CRT TV's here. They don't have SCART and they don't always have the best pic or cooler but there are apparently still manufacturers.
Locke141:
I went and looked at a few TV's today. Some of the 14 inch ones were in really good shape. All the 21 inch ones with SCART at this shop were all flat glass and did not have the best images.
I took down the info on one seem to have a particularly good image a Philips 14pt6107/05d. I found the manual but it does not say any thing about the service menu or wether or not it supports RGB over SCART. I can get to the Picture settings with out a remote. What should I do? Is there a web site that will tell me how to get in to the service menu?
Edit:Found this I'll test it tomarrow.
--- Quote ---Service Menu Code For Philips TV:
There are many codes available for accessing service menu in various Philips TV models. You can try following codes one by one until you get access to service menu:
0 + 6 + 2 + 5 + 9 + 6 + Menu/Info/Status
0 + 6 + 2 + 5 + 9 + 7 + Menu/Info/Status
0 + 6 + 1 + 5 + 9 + 6 + Menu
0 + 6 + 1 + 5 + 9 + 7 + Menu
1 + 6 + 2 + 5 + 9 + 6 + Menu/Status
1 + 2 + 3 + 6 + 5 + 4
If you have a different brand TV set such as Panasonic, Toshiba, Videocon, Onida, Sansui, Sharp, Akai, etc, feel free to ask us for the secret code to access its service menu...
--- End quote ---
Also they have replacement remote that are specific to each brand.
I'm thinking of making a VGA to SCART cable and just testing each TV.
http://www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?slg=en&scy=gb&ctn=14PT6107/05
It seems that most of the Philips CRT's here have SCART.
Locke141:
I'm a little confused. Is the return for each color the shielding around that color? I tried to test with my multimeter but all shielding goes to ground so its not posable to confirm with a multimeter.
Also in my VGA cable Red signal is a red wire, Blue signal is a blue wire, Green signal is white, and one sync is green the other is white. :angry: That was needlessly. confusion.
sqwirral:
Does anybody know what I've done wrong here?
This is a Jamma PCB going to the RGB scart input on my TV. The board output is fine when going into a scaler/line-doubler thing I've got. The TV is fine when plugging in any RGB game consoles. I get the same effect on another spare CRT too.
It's not really a black and white image, it's almost totally black with only the outlines of sprites etc visible, these pics were taken with brightness wacked up full.
The Jamma harness has a plug with R,G,B,GND,SYNC wires. Those are going to the appropriate pins on the scart plug, as shown in the OP. The only difference is I'm using one GND wire daisy chained to all the returns, instead of lots of seperate grounds... is this what's causing the problem? All the grounds are joined together on the board anyway so I don't see how it would make a difference.
I've added +5V to the blanking pin 16, this made no difference good or bad. I added a 100 Ohm resistor to this wire, still no change. I added 150 Ohm resistors to the RGB wires, obviously this doesn't help either. I haven't sent any voltage to pin 8 since I can just use the remote control to switch to the scart channel for now.
(My theory was if I can get this simple board working then I'd tackle the whole vga soft-15khz thing next...)
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