#1
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So is this my jail bar problem?
Okay, been scoping all morning. Was getting frustrated as I couldn't seem to find anything that varied from the waveforms in Sams. Then I decided to check the ABL as suggested and this is the waveform I got and the one shown in the Sams. To me, with my untrained eye, it looks suspicious.
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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 |
#2
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Wow that's a lot of ringing. Yea that could be it.
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#3
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First I must say I am proud of you. If it were the olden
days I would have got you a Master Tech licence as soon as your required 2000 hrs on the permit was up. Yes that sure looks like it. If you havent yet check everything in the ABL from the tripler on. Also see what effect the ABL control has on the lines. Also see if its at #115 at 9-90 module. Should be a nice clean horz pulse there. You can also disable the ABL by grounding the B of Q201 & see if the lines go away. If not its getting in somewhere else but this still is an important clue. Keep up the good work 73 Zeno |
#4
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Quote:
So where down the line should I scope beyond the base of Q203? Is there a point around the limited pot I can check? Oh, and I know it's not the transistor itself as I had an NOS and swapped it with the same results.
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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 |
#5
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Quote:
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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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