CSYNC mod for Super Famicom 1CHIP-03

[CPC6128]

Hi,

I ordered Super Famicom 1CHIP-03. I would want to know how to connect the CSYNC?
I found this photos with a SNES 1CHIP-03, it’s the same for Super Famicom?



Thank you in advance.

[Konsolkongen]

There is some information about connecting C.sync on Assembler Games:
http://www.assemblergames.com/forums/sh ... ents/page4

[mickcris]

Super Famicom should have csync already connected to that pin unless it is a mini version (which you would need to restore rgb also). I assume that picture is for a PAL console and its cutting the 12v going to that pin and replacing with csync.

edit
nevermind, see post below

[Fudoh]

The 1CHIP-03 indeed doesn't have C-sync connected by default.

[CPC6128]

Thank you for your help

[Inspektor]

As we found out in the CRT thread after I opened my 1Chip-02 console it is possible to get a 02 board without CSYNC.
Lawfer pointed out that the later 02 models have no CSYNC enabled, so keep your eyes open and make sure you buy the right cables or restore the CSYNC on it.

Here is a picture courtesy of retrorgb.com

Spoiler

These are the CSYNC components on a 1chip-01 compared to the (lack) of components on an 1CHIP-03.
Now the picture of my 1CHIP-02 board:

Spoiler

Wups? Nothing there either.
Now, you could buy a SYNC-ON-LUMA cable and as Lawer suggested there are no differences in quality, it's just that some TVs/Monitors won't accept the signal at all, bummer! Besides I'm broke and I already got the CSYNC cable lying around, so restoring is what I have in mind.
You could easily mod it by using a jumper wire as suggested in the first post but to be honest? All these resistors would be missing, I don't know if that's an good idea. Console5.com has a list of components needed for the correct restoration:

Q1: C2412
R9: 1.8kΩ (Blue)
R10: 3.3kΩ (Green)
R11: 300Ω (Yellow)
R12: 100Ω (Red)
C46: 330pF (near MultiAV port)
https://console5.com/wiki/SNES#1CHIP-03_CSYNC_Restore

You could buy the components as a kit from them but they are operating from the US I think so overseas shipping would be a deal killer. I never soldered SMD resistors before but it doesn't look to bad, I'll post again if my mod was succesful or if it went horribly wrong and I killed my console.

[Fudoh]

Now, you could buy a SYNC-ON-LUMA cable and as Lawer suggested there are no differences in quality, it's just that some TVs/Monitors won't accept the signal at all, bummer! Besides I'm broke and I already got the CSYNC cable lying around, so restoring is what I have in mind.

or you just solder a bridge from the Luma output to the (not connected) CSYNC output inside the system and remove the resistor from the CSYNC line within the cable. I mean, if you don't need CSYNC then there's really no reason to make it any harder than neccessary.

[FBX]

The best solution is to order the console5 kit and restore the missing components with it. That's what I did and there's really nothing to it if you've done SMD soldering before. While you're at it, you can replace the C11 cap with a 470nF version to remove ghosting (although it reveals more of the compatibility glitch the 1CHIP series has with some Capcom games).

If soldering is not your thing, you could just order a sync-on-luma RGB cable.

[Lawfer]

You could buy the components as a kit from them but they are operating from the US I think so overseas shipping would be a deal killer.

So you are not in the US? Are you in Europe? If so, you can buy a sync on luma cable from retrogamingcables.co.uk, he sells both for NTSC and PAL Super Nintendos (depending on what SNES region you have).

[Kez]

I am in the UK and have ordered stuff from console5, their shipping is pretty reasonable on small stuff and surprisingly fast.