If I had to guess, I’d say in most cases either the Micom reads the EEPROM but feeds the jungle chip as a separate process, or, of course, i’m an idiot who can’t read properly. Buttersoft, is this why you wanted to get to the service menu for this TV? I tend to build my own cables, i just tap 5V by adding a wire to the connector I’m using. I am concerned however that there is termination to ground via 1. Everything outputs 5V, and you need a common ground for video anyway. Functionally it’s no different though. Not Earth, that refers to mains earth, and most tv’s like this one are two-pin plug, so no earth.
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It works fine, i haven’t yet adjusted the levels, but the interference in the picture is really, really bad. Perhaps the RGB insertion should be at a point after this?
But I build a 5v line into all my cables so i can power sync-stripper and amps when I need to. I am concerned however that there is termination to ground via 1. Hmmm, i have had problems with filter ddatasheet to ground before.
Mon Jun 12, 7: I’m going to have to think about this one, but any help would be much appreciated. There are several other ways to indicate ground. Page 1 of 1. Sun Dec 09, 2: Previous topic Next topic.
The pin of the jungle IC above the blanking line is wired to board ground. The outside of each RCA coax socket and plug is at ground – which is the same as saying connected to ground. Removing RR seems to make the problem worse.
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What was the source you were using when modding the Teac? I’d like to mod this TV so I thought I’d start a thread here to document the process and allow for collaboration.
Buttersoft, is this why you wanted to get to the service menu for this TV? This is where i’ve hit a wall. Also not neutral, so make sure you’re not hb1238an one line from the mains plug is “safe” in any way, or the same as ground. But this schematic uses the ground plane symbol – the short line with three angled lines under it.
If I had to guess, I’d say in most cases either the Micom reads the EEPROM but feeds the jungle chip as a separate process, or, of course, i’m an idiot who can’t read properly. After I finish documenting my ideas here I’ll go back and recheck the datasheeet. The TV is in perfect condition.
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Mon Jun 12, 8: Everything outputs 5V, and you need a common ground for video anyway. What would be the effect of these?
Consoles all output 5V, probably save some weirder older ones, and VGA certainly does, on pin 9. Mon Jun 12, I’ll try it and report back. Extrems, Gunstar, samson7point1 and 12 guests. Most console connectors are pretty easy to source, you just buy a cheap cable and split the plug carefully.
I’m going to have to think about this one, but any help would be much appreciated Also, having the EEPROM mapping for the set hasn’t helped me. Ok, so with all the ducks in a row now with regards to documentation Oh so you get the voltage from the attached device?
Mon Jun 12, 2: I always use my video source to provide the blanking voltage.