SECAM CODER. (C) 1993 ELSY

ZXNet echo conference «hardware.zx»

From Andreas Kaiser To All 14 September 2006

Hello Dendy Den> There are rusty remains of "Robik" lying in the office - maybe this is from Den> "Robika" coder? Owners of "Robik", I ask for your help! Which Den> the encoder is broadcasting on the channel: maybe on the third meter, like “Dandy”? Although I am not the owner of Robik, I am with this copy (manufactured by Rotor software) talked a lot. It didn't have a SECAM encoder. Such a miracle (SEKAM encoder in general, and not this particular one) was among Bytes, Magicians and possibly some others (built-in).

From Alexander Zan To All 14 September 2006

Hello Dendy There was something similar, but it’s still the same litter, you’ll get tired of setting it up. I’ll try to somehow scan it and the manual (I don’t promise it will be soon). In principle, if there are a total of five trimmers on the board (or there are seat for them), then I have the same monster. There should be two more coils, the one with a small number of turns - tuned to the channel, but twist I highly do not recommend her. If you turn the board upside down, you will see the numbers of the contact pads: 1 GND (the track goes along the edge of the board) 2 Sound 3 KSI 560 Ohm (hangs between KSI and SSI) 4 SSI 5 +5V - Goes to the power pins of the microcircuits (easy to trace) 6 Video 7R 8G 9B Z.Y. Can you make a scan of the insides of your device (no larger size ~320x240)?

From Maxim Saratovtsev To All 14 September 2006

Hello, All Purchased from a gold miner's office. Contains about 100 grams of iron. Left to The device has a DIN-5 socket, on the right there is a socket similar to an antenna input TV. Two wires come out of the housing, and a DIN-7 socket is soldered to them. By This outlet must be supplied with power: 1 -- ground 3 -- +5V There are tuning resistors: "Sound Quality" and "Color Balance". Labels all beautiful, shiny, there is an inscription: Computer -> SECAM CODER -> TV Inside there are two microcircuits: KR155LA3 and KR155TM2. Yes unidentified radio component, pink, made of paper, has three contacts, size 6x1 centimeter, marking: "LZYA-0.33". And also: a lot of capacitors, diodes, transistors, resistors. The scheme is quite complicated - well, it wasn’t then special microcircuits for converting the RGB signal into a high-frequency signal. K There are 6 wires leading to the DIN-5 socket, the ring is connected to ground. It looks like all this compatible with the Spectrum from OVI-MINI - the same power connector. Video output of that "Spectrum" itself: 1 -- sound, 2.24V 4 -- blue 2 -- synchronization, 0.017V 5 -- green 3 -- red But I'm not sure. I don’t want to just send a video signal to contacts - suddenly the purpose of the contacts on the video input is still different, and I have everything will burn out: the Spectrum, this encoder, the TV, the power supply, and at the same time electrical wiring in the apartment. Do not confuse the red signal with synchronization!There are rusty remains of "Robik" lying in the office - maybe it's from "Robik" coder? Owners of "Robik", I ask for your help! What channel is the encoder broadcasting on: maybe on the third meter, like "Dandy"? Now ELSY is a security company. The inventor of this encoder on the Internet is not found. Links to diagrams of other SECAM encoders: http://m33gus.narod.ru/shems1.html http://cosmedtech.nm.ru/PAZN.htm http://kazus.ru/schematics/electrical-engineering/search/go/?text=secam&nohisto ry=1&h=1 Today I’ll read them, and please tell me about your SECAM coders.

From Andreas Kaiser To All 15 September 2006

Hello Dendy Den> But this “Sekam-encoder” is not built-in, but external, connects to Den> RGB port. I understand. I can’t wrap my head around the idea of selling that external encoder. together with a computer ;) Den> Tell me how the Robik video output works (type of socket, purpose Den> contacts). There was a diagram flying around here, but it was of poor quality. If necessary, I can send it (just It is possible that it was removed as a result of clearing disk space).

From Andreas Kaiser To All 15 September 2006

Hello Dendy Den> What are KSI and SSI? There are no such signals on the RGB video output. By Den> the sixth contact probably receives composite video, right? KSI - KSI - frame sync pulse SSI - SSI - horizontal sync pulse On Robik's circuit there is a 9-pin connector, on which, in addition to color signals, These two are also present. But they will tell you what this connector is and whether it was external owners of Robik (I don’t remember anymore).

From Alexander Zan To All 15 September 2006

Hello Dendy Den> What are KSI and SSI? There are no such signals on the RGB video output. By Den> the sixth contact probably receives composite video, right? KSI and SSI weigh as is (we do not connect anything). On the "video" probably The synchro mixture will do, because RGB comes separately. Is there at least something in common with the pinout of the contacts on the board? Will there be a scan of the scarf?

From Maxim Saratovtsev To All 15 September 2006

Hello fan fan> 3 KSI fan> 560 Om (hangs between KSI and SSI) fan> 4 SSI What are KSI and SSI? There are no such signals on the RGB video output. On the sixth The contact is probably receiving composite video, right?

From Maxim Saratovtsev To All 15 September 2006

Hello icebear But this “Secam encoder” is not built-in, but external, connected to the RGB port. Tell me how the Robik video output works (type of socket, purpose of contacts).