Re: Old school Fortune Magic Green 14" S/N 96097669 CRT
I have never see this bulb before..
On my town, when we want to test AC mains electrical socket HOT line use this tester pen.
this could be use to connects it to anode cup to make sure it has a high voltage AC? I don't know this anode cup has a DC or AC, sorry for my ignorance..
feel nothing when placing my back of hand on the faces of screen.
btw, I have test to measure the IC Vcc pin yesterday and just get the voltage on
TDA 1872 = 18V
LM358 = 12V
CA3080 = 0
NE555 = 0
TDA 9102 = 0
WT 8043 = 0
and I am notice that trace before LM358 has a symbol I don't know what it means exactly. it has symbol = V, H, IN, OUT
and i get the 12V voltage at IN trace directly from secondary PSU connected to Vcc LM358, but i measure the OUT trace and get no voltage.
I am also measure 7812 voltage regulator at secondary PSU and get a 12V exactly.
it looks like I will makes you confuse and my problem didn't as simple as i thought, huh? any idea or advice? thank you for your reply.
Originally posted by jts1957
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On my town, when we want to test AC mains electrical socket HOT line use this tester pen.
this could be use to connects it to anode cup to make sure it has a high voltage AC? I don't know this anode cup has a DC or AC, sorry for my ignorance..
feel nothing when placing my back of hand on the faces of screen.
btw, I have test to measure the IC Vcc pin yesterday and just get the voltage on
TDA 1872 = 18V
LM358 = 12V
CA3080 = 0
NE555 = 0
TDA 9102 = 0
WT 8043 = 0
and I am notice that trace before LM358 has a symbol I don't know what it means exactly. it has symbol = V, H, IN, OUT
and i get the 12V voltage at IN trace directly from secondary PSU connected to Vcc LM358, but i measure the OUT trace and get no voltage.
I am also measure 7812 voltage regulator at secondary PSU and get a 12V exactly.
it looks like I will makes you confuse and my problem didn't as simple as i thought, huh? any idea or advice? thank you for your reply.
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