Get Video — ZXNet «hardware.zx»

From Aleksandr Majorov To Nikolaj Amosov 15 March 2003

Hello Nikolaj! 15 Mar 03 21:44, Nikolaj Amosov -> Kirill Frolov: NA>>> As from the signals R, G, B, I, XI, Synchro Mix NA>>> receive full VIDEO signal? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ KF>> Read the ZX-Guide - there is a diagram and recommendations for KF>> setting. And look on the Internet KF>> dock on MC13077 (manufactured by Motorola), price ~$2.5. NA> So this is a PAL encoder, but I need VIDEO, NA> which was on the computer, but after connecting GMX it was gone. NA> With GMX, only clock signals can be received. In Scorpio somehow NA> this is done without any Motorola... With the help of the encoder you will receive a _complete_ video signal. Which is exactly what you asked for in your letter. And in Scorpa, b/w video is simply created, i.e. not complete at all. Then look at the diagram of the scorpion, everything is clearly visible there. Watch from the "video" output. Alexand

From Nikolaj Amosov To Aleksandr Majorov 16 March 2003

Hello, Alexander! Saturday March 15, 2003 22:20:01 Aleksandr Majorov -> Nikolaj Amosov: KF>>> Read the ZX-Guide - there is a diagram and recommendations for KF>>> settings. And look on the Internet KF>>> dock for MC13077 (manufactured by Motorola), price KF>>> ~$2.5. NA>> So this is a PAL encoder, but I need VIDEO, NA>> which was on the computer, but after connecting GMX it was not NA>> became. NA>> With GMX, only clock signals can be received. In Skoppa NA>> somehow NA>> this is done without any Motorola... AM> Using the encoder you will receive a _complete_ video signal. AM> What you actually asked for in your letter. Well, then it’s clear - I asked the wrong thing ;( I apologize. AM> And in Scorpa, b/w video is simply created, i.e. not at all AM> complete. I actually need it. AM> Then look at the diagrams of the scorpion, everything is clearly visible there. AM> Look from the "video" output. There is something incomprehensible there - two triggers (DD42A DD42B), at the input one goes KS-, H4, SS-. What is H4? Just output from the dividerfrequencies? You can try to submit KS and SS with GMX, but here's where to get it H4? After all, we probably need to remove it from GMX too or leave it dear, which is on the board? But what about resistor R21 from the trigger output, because we Did you pick it out when installing GMX? [REAL ZX]

From Aleksandr Majorov To Nikolaj Amosov 16 March 2003

*** Reply to message from CARBON.COPIES (<>). Hello Nikolaj! 16 Mar 03 21:51, Nikolaj Amosov -> Aleksandr Majorov: [skipped] AM>> And in Scorpa, b/w video is simply created, i.e. not at all AM>> complete. NA> Actually, I need it. AM>> Then look at the diagrams of the scorpion, everything is clearly visible there. AM>> Look from the "video" output. NA> There is something incomprehensible there - two triggers (DD42A DD42B), at the input NA> one goes KS-, H4, SS-. What kind of scorpion scheme are we discussing? ;) NA> What is H4? Just output from the divider NA> frequencies? You can try to submit KS and SS with GMX, but here's where to get it NA> H4? After all, we probably need to remove it from GMX too or leave it NA> native, which is on the board? NA> What about resistor R21 from the trigger output, because we have it NA> was picked out when installing GMX? We open the “yolk” diagram (it’s just closer). We find the place where RGB are formed. Let's look at _where_ these RGBs go (to two transistors, from the output of which it turns out a video!). Let's look at _what_ is supplied to the base of the 1st transistor - the synchro mixture.In total, 2 KT315 transistors and 8 different connections are required. 470, 680, 1K, 200, 27, 470, 1K, 2K. Alexand

From Kirill Frolov To Nikolaj Amosov 17 March 2003

Press RESET immediately, Nikolaj! 16 Mar 03 21:51, Nikolaj Amosov wrote to Aleksandr Majorov: AM>> Then look at the diagrams of the scorpion, everything is clearly visible there. AM>> Look from the "video" output. NA> There is something incomprehensible there - two triggers (DD42A DD42B), at the input NA> one goes KS-, H4, SS-. What is H4? Just output from the divider NA> frequencies? Yes. NA> You can try to submit KS and SS with GMX, but here's where to get it NA> H4? H4 is needed to extinguish the beam on the return stroke. You can try without it. NA> After all, you probably need to remove it from GMX too or leave it NA> native, which is on the board? Do you want to make GMX work without a Scorpio board? :-/

From Kirill Frolov To Aleksandr Majorov 17 March 2003

Press RESET immediately, Aleksandr! 16 Mar 03 23:44, Aleksandr Majorov wrote to Nikolaj Amosov: AM> 470, 680, 1K, 200, 27, 470, 1K, 2K. ~~~~~~~~~~~~ Instead of these three, something like 500, 1k, 1.5k is better. Otherwise it's too blue It turns out dark, on a black-and-white monitor it generally turns into black.

From Nikolaj Amosov To Aleksandr Majorov 17 March 2003

Hello, Alexander! Sunday March 16, 2003 23:44:27 Aleksandr Majorov -> Nikolaj Amosov: AM>>> Then look at the scorpion diagram, everything is clearly visible there. AM>>> Look from the "video" output. NA>> There is something incomprehensible there - two triggers (DD42A DD42B), on NA>> input NA>> one goes KS-, H4, SS-. AM> What scorpion scheme are we discussing? ;) I have a diagram of the latest greenery. NA>> What is H4? Just output from the divider NA>> frequencies? You can try to submit KS and SS with GMX, but here's where NA>> take NA>> H4? After all, you probably also need to bring it out from GMX or NA>> leave NA>> native, which is on the board? NA>> What about resistor R21 from the trigger output, because we have it NA>> was picked out when installing GMX? AM> Open the “yolk” diagram (it’s just closer). AM> Find the place where RGBs are formed. I found the outputs of the KP11 multiplexer. There are resistors at the outputs and after them there are a bunch of transistors. AM> Let's look at _where_ these RGBs go (to two transistors, from the output AM> which AM> it turns out to be a video!). AM> Let's look at _what_ is supplied to the base of the 1st transistor - AM> sync mixture. Now I saw the synchro mixture! AM> In total, 2 KT315 transistors and 8 different summaries are required. AM> 470, 680, 1K, 200, 27, 470, 1K, 2K. I'll use the elements that are on the board - I'll just plug in the synchronization a mixture of GMX on the base of that transistor, and RGB is already stuck. Thank you!!! [REAL ZX]

From Nikolaj Amosov To Kirill Frolov 17 March 2003

Hello Kirill! Monday March 17, 2003 06:00:42 Kirill Frolov -> Nikolaj Amosov: NA>> You can try to submit KS and SS with GMX, but here's where to get it NA>>H4? KF> H4 is needed to extinguish the beam on the return stroke. You can KF> try without it. It's clear now. NA>> After all, you probably need to remove it from GMX too or leave it NA>> native, which is on the board? KF> Do you want to make GMX work without a Scorpio board? :-/ No, I just want to plug into a monitor that requires a signal VIDEO, which is not available on the GMX outputs. In general, I think that the GMX scorpion board is not really needed for works like a computer without a keyboard and a floppy drive. [REAL ZX]

From Aleksandr Majorov To Nikolaj Amosov 18 March 2003

Hello Nikolaj! 17 Mar 03 21:41, Nikolaj Amosov -> Aleksandr Majorov: [skipped] NA> Found the outputs of the KP11 multiplexer. There are resistors at the outputs and NA> after them there are a bunch of transistors. You are looking from the side of the "shaper" entrance. Look from the reverse side - from RGB AM>> Let's look at _where_ these RGBs go (to two transistors, from the output AM>> which AM>> you get a video!). AM>> Let's see _what_ is supplied to the base of the 1st transistor - AM>> sync mixture. NA> Now I saw the synchro mixture! Actually, it seems to be signed there... AM>> In total, 2 KT315 transistors and 8 different summaries are required. AM>> 470, 680, 1K, 200, 27, 470, 1K, 2K. NA> I will use the elements that are on the board - just plug in the synchro NA> a mixture of GMX based on that transistor, and RGB already NA> stuck. Do you mean "stuck"? Do you have the GMX RGB outputs connected to the RGB outputs of the scorp or what? Alexand

From Nikolaj Amosov To Aleksandr Majorov 18 March 2003

Hello, Alexander! Tuesday March 18, 2003 02:13:36 Aleksandr Majorov -> Nikolaj Amosov: AM>>> Let's see _what_ is supplied to the base of the 1st transistor - AM>>> synchro mixture. NA>> Now I saw the synchro mixture! AM> Actually, it seems to be signed there... It is signed there after the emitter follower (?), and I I only looked before it, so I didn’t understand what it was... AM>>> In total, 2 KT315 and 8 different transistors are required AM>>> summary. AM>>> 470, 680, 1K, 200, 27, 470, 1K, 2K. NA>> I will use the elements that are on the board - just plug it in NA>> synchro- NA>> a mixture of GMX based on that transistor, and RGB already NA>> stuck. AM> Do you mean “stuck”? It means soldered. AM> You have GMX RGB outputs supplied to the RGB outputs of the scorpion or AM> how? I cut off KP11 and soldered digital RGB with GMX to its outputs. [REAL ZX]

From Aleksandr Majorov To Nikolaj Amosov 19 March 2003

Hello Nikolaj! 18 Mar 03 21:37, Nikolaj Amosov -> Aleksandr Majorov: [skipped] AM>> You have RGB outputs from GMX supplied to the RGB outputs of the scorpion or AM>> how? NA> I cut off KP11 and soldered digital RGB from GMX to its outputs. So cut off the supply of synchro mixture, give it the same, but with GMX and you will be happy :) Alexand