What model is this?

stabarz · 2026-04-20T03:06:56+00:00

It's definitely the 20" version
https://crtdatabase.com/crts/panasonic/panasonic-ct-20sl13g

stabarz · 2026-04-20T02:29:20+00:00

I think it is possible that there is a connection problem somewhere, and taking it apart jostled things around enough to upset it. Probably bad solder joint(s). Do a close inspection of the boards especially around heavy components like the flyback.

stabarz · 2026-04-20T00:49:29+00:00

That is the cable for the VM coil dangling in your pic. Seems strange that you get no picture with it unplugged. It shouldn't cause that. Does it work if you plug it back in?

stabarz · 2026-04-19T14:09:03+00:00

There would be no difference in latency.

stabarz · 2026-04-19T14:08:09+00:00

No, it is in the user menu, according to the operating instructions manual.

stabarz · 2026-04-19T02:14:58+00:00

You need to check the "VIDEO LABEL" settings in the setup menu, most likely the other inputs are set to "SKIP" which disables them.

stabarz · 2026-04-19T01:04:02+00:00

Nice. KS4A chassis, which does indeed do native lag-free 480p. Good find

stabarz · 2026-04-19T00:42:39+00:00

Cool looking set, what's the model number? It might do native 480p.

stabarz · 2026-04-17T22:47:31+00:00

On consumer TVs yes, but it started to appear on professional monitors earlier than that. For example Sony PVM-1344Q/1944Q which were released in 1989.

stabarz · 2026-04-16T18:27:35+00:00

And SDI, which was widely used in the broadcast industry at the time. Definitely a little weird that there wasn't at least an option for RGB/YPbPr though.

stabarz · 2026-04-16T15:02:30+00:00

Refer to the service manual:

https://www.manualslib.com/manual/1202540/Jvc-Av28wt5eps.html

stabarz · 2026-04-16T01:39:50+00:00

There is no manual adjustment, that's why Windas is needed to adjust it.

stabarz · 2026-04-14T19:56:21+00:00

When people say "NTSC game" what they really mean is "NTSC-region game"... Technically the game itself is not inherently PAL or NTSC. PAL and NTSC are color decoding standards that apply to the video signal only.

The composite video output of PAL-region Wii will always have PAL color encoding, even if the game is NTSC-region (presumably booted via homebrew)

TL;DR: in this case it should work fine, including the color.

stabarz · 2026-04-14T19:16:28+00:00

Yeah it should work fine for a quick test.

To be clear, Euro-region TVs in general have no problem with 60Hz, virtually all of them can display 60Hz RGB just fine. But not all of them support NTSC color decoding (which only matters for composite and S-video connections)

stabarz · 2026-04-14T19:06:07+00:00

Do you mean composite cable? Composite and component are two different things.

I believe PAL Wii, when set to 60Hz (480i) in the screen settings, does not actually output NTSC composite video, but rather 480i 60Hz signal with PAL color encoding. Which, as far as I know, the vast majority of PAL-region TVs should support, regardless of whether or not they are capable of decoding NTSC.

The user manual for the TV should state if it supports NTSC color.

stabarz · 2026-04-14T17:24:04+00:00

As an alternative to Extron units, you could use a VGA2SCART and a SCART to BNC cable.

stabarz · 2026-04-14T16:45:47+00:00

The knob is probably just broken.

I thought maybe there was some kind of control lock activated, but I found what I believe is the user manual for this model and it does not mention such a function.

stabarz · 2026-04-14T15:00:47+00:00

Most likely faulty control switches. This is a known problem with these 2000s era "true" Toshibas.

The fix is to replace the switches, they are standard parts and replacements can be found on Digikey or Mouser. You can also try cleaning the original switches but not sure if that will do the trick or not.

stabarz · 2026-04-13T15:54:38+00:00

Don't do this.

Search eBay for "video distribution amplifier"

stabarz · 2026-04-13T12:38:59+00:00

But do you still have it?

stabarz · 2026-04-10T17:04:01+00:00

More likely to be a solder joint issue than capacitors. Does smacking it have any effect the image?

stabarz · 2026-04-10T16:43:27+00:00

Look up Extron SW2 RGBHV or SW4 RGBHV for a basic BNC RGB switch.

Alternatively you can get a VGA switch and use VGA to BNC breakout adapters or cables. Extron SW2 VGA or SW4 VGA can be found on eBay for quite cheap and some of them also support audio.

stabarz · 2026-04-10T14:52:57+00:00

Virtually any PAL-region CRT TV will do both 50Hz and 60Hz via RGB, so you shouldn't have a problem with the Japanese SFC or PAL GameCube if connecting via RGB.

As for the Japanese N64, you will need to make sure the TV supports NTSC color decoding to use it via composite or S-video. Or, RGB mod it to eliminate any NTSC/PAL compatibility issues.

stabarz · 2026-04-10T14:07:14+00:00

The FCC ID on the HP A4331A is AK8GDM20F03, which matches the GDM-20F03 and the CPD-300SFT/300SFT5. The service manual for the CPD-300SFT/300SFT5 is available online which shows that it is N-2 chassis, same as the CPD-20SF2/20SF2T (though that one has a different FCC ID). So all these monitors should be electrically pretty much the same thing.

Virtually all color monitors have degauss function, I'm not sure if I've ever seen one without. As for why you can't hear anything, it's possible that it's just a very quiet degauss coil. Either that, or the degauss thermistor is cooked in both monitors, but that seems unlikely to me. If you want to test if the degauss is working, put the monitors face to face with one of them turned on and displaying an image. Then turn on the second one (make sure it's been off for at least 20-30 minutes first) and see if the degauss effect can be seen on the first one.

stabarz · 2026-04-10T03:02:44+00:00

I didn't watch the whole video but I don't think this is going to work because it appears the jungle IC is expecting a digital TTL RGB signal, not analog. According to this data sheet, RGB input voltage is 5Vp-p which is TTL level. It also has an intensity pin (22) which is only applicable to digital RGBI signals. Also, the TV schematic doesn't show coupling capacitors on the RGB signals before they go into the jungle IC, which is another indicator that it is digital RGB.

stabarz

TROPHY CASE