elfyhead
New member
OK, so i bought a chassis from gregr, which he said worked last time it was plugged in (to a Punchout).
i connected it to my tube and plugged it into the transformer (let's not repeat *that* stupid mistake!), and nothing.
sigh.
so, to the troubleshooting guide. voltage at TP91 is 134. voltage at pin 9 of IC401 is 0.9V (which i assume is "approx. 0.6V" as on the diagram). so it says check power reg., hold down, and high voltage circuits next, but can anybody give some guidance on just what to check next, since that is pretty broad?
(BTW, the fuses are both good, so Dokert's guide doesn't help me much, but i did check the HOT with a diode test and it checks out good, and visually the FBT looks OK.)
i'm wondering if i've just got a bad tube? what's the best place to directly check the voltages for that?
thanks in advance
...
i connected it to my tube and plugged it into the transformer (let's not repeat *that* stupid mistake!), and nothing.
sigh.
so, to the troubleshooting guide. voltage at TP91 is 134. voltage at pin 9 of IC401 is 0.9V (which i assume is "approx. 0.6V" as on the diagram). so it says check power reg., hold down, and high voltage circuits next, but can anybody give some guidance on just what to check next, since that is pretty broad?
(BTW, the fuses are both good, so Dokert's guide doesn't help me much, but i did check the HOT with a diode test and it checks out good, and visually the FBT looks OK.)
i'm wondering if i've just got a bad tube? what's the best place to directly check the voltages for that?
thanks in advance