Reserve list - V9990 Powergraph and OPL4 Shockwave by Tecnobytes

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By edoz

Prophet (2310)

edoz's picture

20-08-2014, 13:27

Ok! Seem I just have to go for normal scart then Wink

By Manuel

Ascended (17265)

Manuel's picture

20-08-2014, 13:32

This document http://www.go-gddq.com/upload/2009_08/09081409391673.pdf

says:

Quote:

Scanning
• Vertical refresh rate 56~76 Hz
• Horizontal frequency 30~61 KHz

By edoz

Prophet (2310)

edoz's picture

20-08-2014, 13:44

Cool Manuel! you found the service Manual! 640 x 350 31.5 70 is indeed the lowest .. to bad Sad

By edoz

Prophet (2310)

edoz's picture

20-08-2014, 13:55

So if I want to create a SCART what is the pin connection ?

V9990 / SCART
1 =15
2 =11
3 =7
12 (GND) = 5, 9, 13

But I think it is not complete not ?

Thanks!

By Grauw

Ascended (9478)

Grauw's picture

20-08-2014, 14:21

Also connect Powergraph pin 5 to SCART pin 19 I think.

By Tecnobytes

Expert (113)

Tecnobytes's picture

20-08-2014, 17:13

edoz wrote:
Manuel wrote:

Why don't you just connect it to the scart like everyone does?

Yes .. that would be the first choice! However if I can connect it to my (old) VGA monitor it will give better picture quality ? Or is this not the case ?

Hello!

If your monitor works with 15Khz of horizontal frequency, no problem!

Scart is a good solution too!

About the DB15 V9990 Powergraph connector, this is the pinout:

Pin 1: Red
Pin 2: Green
Pin 3: Blue
Pin 4: VSYNC
Pin 5: CSYNC
Pin 6: YS
Pin 7: DLCLK
Pin 8: 3.58Mhz
Pin 9: HSYNC (in)
Pin 10: CHROMA
Pin 11: Y
Pin 12: Ground
Pin 13: HSYNC (Out)
Pin 14: Ground
Pin 15: Ground

V9990 Powegraph RCA and SVIDEO outputs are NTSC.

Any doubts?!

We will help you!

By Tecnobytes

Expert (113)

Tecnobytes's picture

20-08-2014, 18:56

edoz wrote:

So if I want to create a SCART what is the pin connection ?

V9990 / SCART
1 =15
2 =11
3 =7
12 (GND) = 5, 9, 13

But I think it is not complete not ?

Thanks!

You can connect all GND signals: 12, 14 and 15 from V9990 DB15 and 4, 5, 9, 13, 14, 17, 18 and 21 from SCART.

We never tryed with scart cable (it isn't usual in Brazil), but I think that the connections are:

Pin 1 V9990 -> Pin 16 Scart
Pin 2 V9990 -> Pin 11 Scart
Pin 3 V9990 -> Pin 7 Scart

Now you can try:
Option 1: Pin 5 V9990 -> Pin 20 Scart
or
Option 2: Pin 13 V9990 -> Pin 20 Scart

And, of course, the ground signals!

Let me know if works!

Big hug!

By edoz

Prophet (2310)

edoz's picture

20-08-2014, 22:10

Thanks for the support! have to shop for the parts first!! Big smile I will post the results Wink

By riquet

Master (169)

riquet's picture

31-08-2014, 17:37

Is everyone has received their order in Europe ?
Not me Crying

By yzi

Champion (444)

yzi's picture

31-08-2014, 21:18

received and tested! Big smile

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