A1200 Rev 1D.1 why Green Wire there

[Rob-A1200]

i have 2 x A1200 this one image of show Green Wire and i dont know why someone doing this ive checked my another A1200 Rev 1D.4 there is no wire at all on board. can someone tell me what the green wire on A1200 Rev 1D.1 what is it for ?

there is no output from RF and Video port and S-Video port to TV but i only see the light LED power and F.Disk light came up but no screen

 

[supaduper]

It`s a factory mod put there by Commodore for that revision of motherboard

 

[Templar]

Exactly, this is a factory mod by Commodore. Actually if I remember correctly it has to do with a fix in Budgie custom chip (track missing for timing fix).

 

[miggymad]

1.D.1 mainboards had bus timing problems with the Gayle and Budgie chips that were discovered during manufacture. The factory installed green wire mods simply corrected the errors and allowed the boards to function properly.

 

[Rob-A1200]

Hmm that is interesting i didn't know about that.

what is the cause by no signal on tv ?

i try RF nope
i try S-Video nope
i try video to Vga adapter nope

i dont get it why would be working i have the red light power is on and orange light come on when insert Floppy Disk in and i cant see signal on TV

 

[miggymad]

Try an Amiga to SCART cable ... readily available from fleabay

Also check your TV settings to ensure it's tuned in properly for the RF and S-video signals. My TV, even though it has VGA input won't display anything if I hook my A1200 up via the VGA adaptor.

 

[Rob-A1200]

ok i try it out with an Amiga to SCART cable i need to buy after new year when season holiday is over

 

[RetroPassion]

How are you using S-Video? The 1200 has RF, Composite and RGB? I can understand no composite/RF as that could be cap leakage, RGB (DC23 port) no pic that sounds like a component failure, can you confirm re S-Video as if you converting it that may be a red herring

 

[Rob-A1200]

No pic on S-Video and but RF like fizzy scramble i try to tune but no go, i think you might be right about cap leakage, i think need replace new cap.

but i need buy Scart RGB (DC23 port) to see if this work and if not definitely need to replace cap.