Autor Thema: Viking ECL Grafikkarte: Schaltplan etc.?  (Gelesen 905 mal)

2 Mitglieder und 2 Gäste betrachten dieses Thema.

Offline Lukas Frank

  • Benutzer
  • Beiträge: 11.326
  • fancy Atari Musik anDA Dance "Agare Hinu Harukana"
Re: Viking ECL Grafikkarte: Schaltplan etc.?
« Antwort #20 am: Sa 11.12.2021, 15:19:49 »
Habe mir einen Adapter gebaut von D-Sub 9 Buchse auf D-Sub HD15 Buchse. Belegung ist wie folgt ...

nc   1
nc   2
nc   3
1    4   +ECL Video
2    5   GND
nc   6
nc   7
nc   8
nc   9
7    10   GND
nc   11
nc   12
3    13   Hsync
4    14   Vsync
6    15   -ECL Video

Netzteilbelegung D-Sub 9 /Pin 8 GND(+9V) /Pin 5 -9V


... Netzteil hat 500mA / 9V. Es funktioniert sowohl der Tenox ECL/VGA Adapter sowie der ECL Adapter von Inventronik. Bei einer Matrix M110 ECL Großbildschirmkarte ist die negative Versorgung auf Pin 9 anstatt Pin 5 ...
« Letzte Änderung: Sa 11.12.2021, 17:53:12 von Lukas Frank »

Offline Lukas Frank

  • Benutzer
  • Beiträge: 11.326
  • fancy Atari Musik anDA Dance "Agare Hinu Harukana"
Re: Viking ECL Grafikkarte: Schaltplan etc.?
« Antwort #21 am: Heute um 21:57:53 »
Docu aus dem Netz zu der Moniterm Combo ...

SM194 (only Viking Mono Card for MegaST Bus Expansion Slot)

†††Picture tube / picture tube: 19 inches
†††Max. Resolution / resolution: 1280 * 960 pixels
†††Triple pitch / slot mask: n.a.
†††Pixel clock: 110 MHz
†††Line / line frequency: 66 KHz
†††Raster / refresh rate: 66 Hz
†††Power consumption / Power consumption: <100W (typical 64W)
†††Video input / input: ECL
†††Manufacturer: Fa. Moniterm


†††The address space of the Viking card is 0xC00000 in memory and
†††AFAIK has 256 kilobyte of memory ONboard!
†††In the empty PLCC socket one can still need an MC68881 FPU
†††at 16 MHz.


†††The error possibilities with the SM 194 monitor
†††Voltage Normal resistance testing

††††††9V 4.3 MOhm (without video board) Switching power supply
†††††††††††††††††††20 (with video board) as well as diode D8 and
†††††††††††††††††††††††††††††††††††††††††††††††††Resistor R220
†††††25V 2KOhm U2, U3, Switching
†††††††††††††††††††††††††††††††††††††††††††††††††partial diodes,
†††††††††††††††††††††††††††††††††††††††††††††††††judge
†††††40V 3 to 4 Mohm Switching Diode D10

††††100V 7.3 Mohm Q7, T2

††††120V 14 Mohm high voltage, deflection
†††††††††††††††††††††††††††††††††††††††††††††††††unit

†††1200V 8 to 9 Mohm high voltage, deflection
†††††††††††††††††††††††††††††††††††††††††††††††††unit, Q5, D5

†††Switching power supply defective?
†††Check U1 (UC3842), V1 (1KOhm Poti), Q1 MOSFET (JN80A), Transformer
†††and the output diodes (D13 - 1N1752, D14 - 1N1763)
†††Potentiometer 1 regulates all DC voltages
†††Potentiometer 2 regulates the high voltages
†††Check T2 (Flyback Transformer), Q7 (MJH16010A), Diodes D32 / D37
†††(sitting on the VCX Deflection Board)
†††9 Volt power supply defective, potentiometer V5 (Vertical Center) over-
†††check (sits on the VCX Deflection Board)


†††The assignment of the video jack on the monitor

†††1 + ECL Video 6 - ECL video
†††2 + ECL Return 7 - ECL Return
†††3 HSync 8 Sync Return (Ground)
†††4 VSync 9 Ground for minus 9 volts at pin 5
†††5 minus 9 volts for ECL logic on the Viking card


†††The connection cable between the video card and the monitor is
†††1: 1 interconnected.

†††††weiterbl‰ttern
†††††Chapter The ATARI Monitor SM194, page 1