Sony PVM 1440QM CRT>Amiga

[Deling]

Hi I bought high end Monitor Sony PVM 1440QM I would like to connect this Crt to my Amiga 500
this monitor have only BNC connectors, question sound can I use RGB-VGA commodore adapter and from VGA to BNC straight to Monitor ?

 

[doboos]

.. this is a standard 15Khz - Monitor so you can use an adaptercable from the 23-Pin Video-Out of the Amiga to the BNC-Connectors

VGA-like signals (31Khz) are NOT supported by this monitor.


Dom

 

[roy_bates]

plus,if it doesnt have termination built in,get some terminators for the rgb and sync.

75ohm

 

[Deling]

thanks all for help and Doobos U have PM

 

[UberFreak]

Hi I bought high end Monitor Sony PVM 1440QM I would like to connect this Crt to my Amiga 500
this monitor have only BNC connectors, question sound can I use RGB-VGA commodore adapter and from VGA to BNC straight to Monitor ?

Yes, it will work.
Commodore 23-pin to VGA adapter on the A500, then a breakout cable VGA->BNC (RGBHV).
I'm using the same setup with a PVM, works great.

 

[oggie]

Hi I bought high end Monitor Sony PVM 1440QM I would like to connect this Crt to my Amiga 500
this monitor have only BNC connectors, question sound can I use RGB-VGA commodore adapter and from VGA to BNC straight to Monitor ?

Yes, it will work.
Commodore 23-pin to VGA adapter on the A500, then a breakout cable VGA->BNC (RGBHV).
I'm using the same setup with a PVM, works great.

Don't most PVMs have 4 BNC connections (RGBH) and not 5 BNC (RGBHV)?

 

[UberFreak]

Correct.

To output C-Sync using a Commodore VGA adapter, a small modification must be done to it (cut one trace and solder a wire).
By default they route H/V sync to the VGA connector.

 

[oggie]

Do you have a link to what needs to be done? I just got a pvm and I'd like to get this working.

If you say I'm correct, then why do you say we need a RGBHV cable?

 

[UberFreak]

For a B/PVM with RGBHV inputs, no change is needed and the adapter + RGBHV cable will work.
If you only have RGB+CSync inputs, the adapter will need to be modified but you still can use an RGBHV cable (according to VGA pinout, pin 13 can carry either C-Sync or H-Sync).

I don't have a link, I just used a multimeter to figure out the wiring inside the adapter and made the change according to the pinout.
There's a buffering IC inside, all you need to do is cut the trace that goes from the 23-pin connector H-Sync to the IC and connect the C-Sync instead.

If you need help I can take my adapter apart and take photos.

 

[oggie]

mine is a Sony PVM-14M4U. It only has a connection for 'Ext Sync' which I assume is CSync?

I don't have an RGBHV cable, so what if I purchase a cable with 4 BNC like this one: https://www.ebay.com/itm/6ft-VGA-HD...e=STRK:MEBIDX:IT&_trksid=p2055119.m1438.l2649 Do I still need to do the mod?

 

[UberFreak]

Yes, 'Ext Sync' is Composite Sync so you'll need the mod.
Before you buy this cable, make sure the Sync BNC is connected to the H/C-Sync pin of the VGA (I assume it is, but doesn't hurt to ask).

 

[oggie]

So I asked the seller, and they said it doesn't have the Sync BNC connected to the HC/Sync pin. But they didn't tell me what pin it is connected to either....

Should i just but a vga to 5 BNC cable (RGBHV) and one of the sync BNC cables will be the one I need and leave the other one disconnected?

- - - Updated - - -

Sorry for my ignorance. I know little about RGB and Sync.

Doing some reading, and I need an RGBS cable right? Where the 'S' means composite and the HSync and VSync are combined, right?

it's not as simple as just joining the two BNC connectors into 1 I would suspect.

 

[UberFreak]

The 5 BNC cable should be fine, you'll only need to use the H-Sync BNC.
Creating Composite sync from H/V is more complex than joining the wires, but since the Amiga already outputs it, there's no need.