HANTAREX CT 28 EQ MONITOR Only Outputting Composite Picture!

[lettuce]

I just today got a HANTAREX CT 28 EQ MONITOR you know the type the monitor in the TV type casing for presentations etc, this is the connections it has on the rear....



I have tried plugging my snes into the scart socket on the rear, and its giving me a really poor grainy picture i pretty sure its composite and it definitely isnt RGB Scart quality that i get from my Sony Trinitron screen. Any ideas why im getting what appears to be a composite signal, surely a Arcade monitor doesnt give composite only RGB.

Heres the spec page from the manual....



it states RGB for the scart connection. It says 'Input of high-speed switching from composite video to RGB 5 - 12 V.', any ideas what the hell that means??

One other thing my SNES scart cable has a switch on it, in one position its gives a crappy composite picture and in the other position a nice crisp scart RGB picture, when i have it in the RGB position all i get on the monitor is a rolling screen!, not sure what to make of this?

[fagin]

Where have you got the selector switch - point 7 on your manual above - it needs to be on RGB and by the looks of your screenshot, it's on video.

In answering to your other question... Some monitors need a voltage (it's on either pin 8 or 16 - cant remember, I'm still pissed from last night!) to tell them to switch to RGB mode.

[fagin]

Looking at that diagram again, I'm probably talking out of my arse above. The selector switch appears to be linked to the type of input associated to the presets / adjustment of picture. Try it anyway... it won't hurt.

You say you're getting a rolling image with your RGB SCART lead - this sounds like a "hold" issue - try (and remember the position you're moving it from, as you may need to move it back) turning the HOR PHASE one way - does it stabilise the picture? - try the other way - if it doesn't turn it back.

Do the same for the VERT FREQ.

Try a quarter of a turn on both pots (each way).

[lettuce]

Looking at that diagram again, I'm probably talking out of my arse above. The selector switch appears to be linked to the type of input associated to the presets / adjustment of picture. Try it anyway... it won't hurt.

You say you're getting a rolling image with your RGB SCART lead - this sounds like a "hold" issue - try (and remember the position you're moving it from, as you may need to move it back) turning the HOR PHASE one way - does it stabilise the picture? - try the other way - if it doesn't turn it back.

Do the same for the VERT FREQ.

Try a quarter of a turn on both pots (each way).

Morning Shaun, yeah i think ive tried ever combination of toggle switches and button press there is lol. That was my first point of call to alter the HOR Phase pot, whilst i was able to get a stable pic when i had the switch on the SNES scart socket in composite mode, when i switched it over to RGB no matter what i tried i couldnt get a stable picture

I have even tried the Sync Strike device and a 15 Pin Din to 9 Pin Din adaptor (eBay) so i could plug the SNES into the 9 PIN VGA port on the back of the Hantarex i was still greeted with a rolling display but all in red!, i thought i was playing a Nintendo virtual boy! lol.

I started a thread over at Arcade Otaku forum (in the Monitor sub forum), and has been suggested that i could try sending 5-12 volts to pin 16 of the scart! but im not to sure on that, for 1 i dont want to butcher my SNES scart lead and 2 where am i going to draw this from?. Or that the US NTSC snes doesnt do C-Sync and only the Jap snes does and this is the problem?

[fagin]

Open your SCART plug up - does it have a connection on PIN16? If not, does it have a connection on PIN8?

[lettuce]

Open your SCART plug up - does it have a connection on PIN16? If not, does it have a connection on PIN8?

Will have a butchers in a bit

[lettuce]

Open your SCART plug up - does it have a connection on PIN16? If not, does it have a connection on PIN8?

Ok Pin 16 is wires to a leg on the Composite/RGB switch and there is nothing attached to pin 8....

[fagin]

Nothing wrong with that then.

If its a sync issue, you'll need to use the sync strike, but confirm that your 15>9 convertor is wired correctly.

[lettuce]

Ok, ive butchered the 9 Pin to 15 Pin Din adapter, and im guessing it was incorrectly wired as surely you would have the Red, Green and Blue wires as RGB, and black as ground etc???. This is what coloured wire was connect to which pin.....



And how ive connected them up to the Sync Strike, picture is me trying C Sync method, i tried individually connecting the purple and blue wire up to Hor & Ver sync but had the same results......



From what i can make out of the pic there just seems to be blue and red colours being display, heres a vid of the problem in action.....

http://youtu.be/5YaHTEZXAUo

The thing is the display doesnt appear to be any different from what i was getting before i re-wired the 9 Pin end on the adapter!

EDIT: Have notice if i have the 'Priotiry' tab on 'RGB' then i get no display at all, if i have it on 'None' or 'Video' then i do. Also press the' Analog TTL-1' appears to make the display very dark and can only see a few red lines rolling on the screen

[fagin]

On this console, have you tried the sync strike setup with say a scaler? The reason I ask is because even though I notice the light on the SS is on, it doesn't mean the circuit is getting enough juice. If you have tried this with console and scaler and it worked, fine, otherwise try a PSU into the SS.

That is definately a sync issue going by that video.

[lettuce]

On this console, have you tried the sync strike setup with say a scaler? The reason I ask is because even though I notice the light on the SS is on, it doesn't mean the circuit is getting enough juice. If you have tried this with console and scaler and it worked, fine, otherwise try a PSU into the SS.

That is definately a sync issue going by that video.

Yeah ive just tried that, im using 5v via the scaler at the moment doesnt appear to make a difference, may be juice than 5v????

Ive kind of got closer, i managed to get a more stable picture was still rolling fast but could actually make out the game on the screen, was still only in red n blue though but i cant recreate it again , i think maybe one of the wire not attached to the SS was maybe touching another wire

[fagin]

Have you tried connecting HSYNC from the SS to HSYNC on the DSUB9, and not bothered connecting the VSYNC?

[lettuce]

Have you tried connecting HSYNC from the SS to HSYNC on the DSUB9, and not bothered connecting the VSYNC?

Just tried, it didnt helpm . Ok i make a mistake in the pic above pin 7 is the grey wire i forgot to add to the pin out diagram, and the core wire is for metal around the VGA plug. Have noticed when i touch the grey wire against the ground (green) the display changes and becomes a shimmer effect rather than rolling and can make the game out a tad (but not as much as i did before hand) But according to the Pin out diagram pin 7 (grey wire) it connected to nothing.

Have also noticed the monitor makes a slight 'thud' noise when i plug in the external power to the scaler, if i turn the power of from the scaler the rolling lines on the display become narrower and when turned on the lines become thicker! Can i actually damage anthing by wire these wires up to the SS incorrectly at all?

[fagin]

Based on your manual are you assuming incorrectly, that this unit is EU and not US.

Try wiring CSYNC from SS to PIN 2 on the D9.

To get a ground you will need to have an adapter connecte to your SS. It's an obvious point, but one I wanted to mention - then make sure you flick the PWR switch on SS to reflect this.

[lettuce]

Based on your manual are you assuming incorrectly, that this unit is EU and not US.

Try wiring CSYNC from SS to PIN 2 on the D9.

To get a ground you will need to have an adapter connecte to your SS. It's an obvious point, but one I wanted to mention - then make sure you flick the PWR switch on SS to reflect this.

Yeah i have tried disconnecting H sync & V Sync form the SS and just connecting Pin 2 (yellow) up to 'C Sync', but had the same effect. On top of this why am i not getting correct colours also?

[fagin]

Is the switch next to the D9 in analogue? It needs to be.

The easiest way to check this would be to use the SCART socket instead, obviously with a clean sync.

I still think its a H hold or V hold thing.

Was this confirmed as working, I mean the CRT?

[lettuce]

Is the switch next to the D9 in analogue? It needs to be.

The easiest way to check this would be to use the SCART socket instead, obviously with a clean sync.

Im not quiet sure what you mean, so plug the SNES scart cable into the scart socket and try that???

I still think its a H hold or V hold thing.

Was this confirmed as working, I mean the CRT?

There isnt some hair brained video signal about that needs ground attached to sync or some odd thing like that is there, im just trying to figure out how i almost got a stable picture early on, must of been one of the unused wires touching together or something, my thinking behind this is i noticed it has an Italy sticked on the tube inside the TV dont some euro countires use a SECAM signal? Im also woundering what Pin 6 'Intensifier' is for??

What was confirmed as working?, the monitor when i bought it you mean?

[fagin]

The spec says CVBS, so it should take composite video for sync. Ignore what I said about a clean sync.

[lettuce]

The analog switch next to the D9 was depress so was in analog mode. Im at a loss what to try really, unless for some reason the pin out diagram is wrong, but what would account for the red/blue colour of the display. Is obviously this problem can be remedied as i had managed (somehow) to improve the rolling substantially, i think that one of these wires need to be twisted with another. This woudlnt be related to a negative C Sync problem would it?, as when i get that improved display i was just using C sync and not H & V sync

[fagin]

But it doesn't even work with SCART and it should "just work" with that input!

Try bashing in say +9v (or +12v) to PIN 16 on your scart lead (disconnect the wire that is already on that pin first though!!).

[neorichieb1971]

I have already gone through all this before with no luck.

http://shmups.system11.org/viewtopic.ph ... t=hantarex

I just used svideo on mine in the end. It seemed no matter what scart input I gave it, it didn't work. Even if its pal or NTSC or RGB.

[lettuce]

But it doesn't even work with SCART and it should "just work" with that input!

Try bashing in say +9v (or +12v) to PIN 16 on your scart lead (disconnect the wire that is already on that pin first though!!).

If im disconnecting pin 16 on the scart lead would the scart lead still work. Isnt one of the pins on the snes scart wired for 5 volts?, could i just dasiy chain that to pin 16?

[fagin]

I have already gone through all this before with no luck.

http://shmups.system11.org/viewtopic.ph ... t=hantarex

I just used svideo on mine in the end. It seemed no matter what scart input I gave it, it didn't work. Even if its pal or NTSC or RGB.

Oh... that's not good then!

[lettuce]

I have already gone through all this before with no luck.

http://shmups.system11.org/viewtopic.ph ... t=hantarex

I just used svideo on mine in the end. It seemed no matter what scart input I gave it, it didn't work. Even if its pal or NTSC or RGB.

Oh... that's not good then!

Well i can get a stable picture but only what appears to be composite, as soon as i try RGB thats when i get this sync issue

[fagin]

Like I said, try putting 9 or 12 volts into pin 16 on your SCART.

The other thread suggests you need to send h & v sync via SCART - sounds strange but that maybe your next test. You can use the SS here, but now you're stàrting to get messy.

[lettuce]

Like I said, try putting 9 or 12 volts into pin 16 on your SCART.

The other thread suggests you need to send h & v sync via SCART - sounds strange but that maybe your next test. You can use the SS here, but now you're stàrting to get messy.

I thought it started getting messy already lol.

Ok some more finds, if using the scart plug i get a rolling display on composite and RGB (the switch on the scart lead), in order for me to stop getting a rolling display on composite i have to change the 'Priority' switch on the rear of the monitor from 'none' to RGB', as soon as i do this the display stables on composite but is still rolling on RGB. Why do i have the 'Priority' switch on 'none' in the first place i hear you ask, well if i have the Priority switch on 'RGB' when using the 9 Din socket i dont get a display at all but do when i select 'none'.

Now i found out how i got the slightly improved display, if i touch the core wire (shield) of the 9 Din to the ground (pin 1) i get the following display....

http://youtu.be/q4Nh_Ig-96Y

God knows why doing this helps improve the picture though??......but it still looks like a Nintendo Virtual Boy!.

I will try putting 9 volt on pin 16 of the scart but not sure the best/safest way to do this, any suggestions? If that doesnt work i havent got a clue, i was hoping this was going to be the cream of the crop for having a cased display for my retro consoles, i guess i should of just stuck with a standard CRT TV , you live and learn i guess

[fagin]

If you had a multimeter I would be checking what you already get on pin16 from your console!

Use a regulated PSU to be safe.

[lettuce]

If you had a multimeter I would be checking what you already get on pin16 from your console!

Use a regulated PSU to be safe.

Is a US-NTSC SNES supposed to give 5v on pin 16?? As i just test pin 16 and i had to change the MM on DCV down to 200 milivolts before i started to get a reading!. I also remember my TV never auto switches over to the scart channel when the snes is powered on!, as this is what should happen if 5v were on pin 16 right?. If this is so i think pin 16 is getting bugger all voltage, which is strange as there is not resistor connected to pin16 to negate the 5v

[fagin]

Should be +5v volts.

[lettuce]

Should be +5v volts.

Well i dont appear to be getting hardly any reading from Pin 16 which is strange then. So i should unsolder pin 16, and the solder a 9v battery to pin 16 and a ground pin, which i think is pin 4 or 18 on my plug?




EDIT- Scrap that, i just tried a different MM and test neg on pin 18 and live on pin 16, and im getting a dead 5v reading!, so maybe this just isnt quiet enough to trip the monitor into RGB mode?, still strange that my TV doesnt switch over to the Scart channel when i turn the snes on though it im getting 5v on Pin 16?