Just picked this set up today. Supposedly, it wouldn't turn on. No LED, nothing. I Googled it and saw other instances of the same issue so I took a chance. Just got the back off and the A/C plug was disconnected. UH-OH. I reconnected the plug, crossed my fingers, and hit the button. To my surprise, it came to life. There are sparklies and a little bit of image retention, but all in all, it's not the end of the road for this set.
I've looked through the service manual for test points and adjustment pots but there's nothing to see. Scanning the boards, I am able to see the Va, Ve, and Vs test points and pots but I can't find Vscan's test point to save my life.
Measured voltage first, label voltage in ()
Va = 63.5V (Good 63V)
Ve = fluctuates slightly 93.2 to 94.2 (Good 94V)
Vs = 207V (Good 207V)
I think I've found the Vscan adjustment pot (circled in red below), but without the test point, I don't know what it's doing. In another post Tom66 helped me out in, he mentioned Yrr and Yfr, I found Yfr adjust and test (yellow circle below) but no Yrr. I did however find Yset but I don't know what it is. I'll post better pics of the Y-sus in a second.
I've looked through the service manual for test points and adjustment pots but there's nothing to see. Scanning the boards, I am able to see the Va, Ve, and Vs test points and pots but I can't find Vscan's test point to save my life.
Measured voltage first, label voltage in ()
Va = 63.5V (Good 63V)
Ve = fluctuates slightly 93.2 to 94.2 (Good 94V)
Vs = 207V (Good 207V)
I think I've found the Vscan adjustment pot (circled in red below), but without the test point, I don't know what it's doing. In another post Tom66 helped me out in, he mentioned Yrr and Yfr, I found Yfr adjust and test (yellow circle below) but no Yrr. I did however find Yset but I don't know what it is. I'll post better pics of the Y-sus in a second.
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