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#17
09-16-2013, 10:28 AM
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[QUOTE=TinCanAlley;3082296]I think you mean R240 and not R243. R243 is a 33ohm wire wound 3W located in another circuit.
QUOTE] I mean the resistor between H and M - the number is smudged, so if you say it's R240, that's the one. 
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#18
09-16-2013, 10:51 AM
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Okay, I'll go the route of cutting the resistor leads and such. Just out of curiosity, what wattage should the pots be? I had assumed they would need to be equal to or higher than the resistors in the current voltage divider circuit, but am not positive. The ones I got are for testing, so I didn't get quality ones. If/when I do it for use, I'll buy better pots.
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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#19
09-16-2013, 10:53 AM
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Okay, going to put this project on hold. The scope arrives today and I've got a bit of reading, setup and practice to do so I can fix the jail bar issue.
Thanks for all the input and being patient with me while I learn.
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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#20
09-20-2013, 02:30 PM
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Okay, while I wait for the replacement HOT, I've gone over the screen taps issue and have noted what needs to be done based on all the information given here, the schematics and seeing it up close with the chassis on a bench.
I'm attaching a pic of the underside of the taps. In it you will see three colors used to mark the Hi, Lo and Med taps. The green is the Hi side and is fed from the transistors. The red is the Med tap and is fed via the resistor from Hi to Med. The Yellow is the Lo tap and is fed via a resistor from Med. Since the Med post is where the two resistors that need removal meet, and they're the only things in the post, I'm going to heat up the post and remove and isolate the leads of the resistors. This will allow me to put the pot across the Hi and Lo and the CRT lead on the wiper. If the day comes that I wish to put it back to factory, I'll just heat up the post and reinsert the resistor leads. Any thoughts? Anything I might be missing? Any input on the wattage needed? Just realized the pots I got from a friend are only 1/2w. Is that too low for being used as a voltage divider? The circuit under 180V. Thanks!
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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