Thread: dead flyback?
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bigtom
 
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Sam Goldwasser wrote:
"James Sweet" writes:


"bigtom" wrote in message
...

TPG 17" monitor Model TP785XE

No HV, led comes on, heater glows, HOT ok.

i tested the resistance from the flyback anode(big red wire) to chassi
and got a reading of 2.68M ohm.

is it a faulty flyback?


It could be, but it's more likely something else. Do you have B+ at the HOT?



If you measured 2.68M ohm or lower in both directions between the anode
cap and anyplace else, the flyback is bad. The resistance should be in the
hundreds of M ohmz to infinity range.

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i had another look and measured the resistance both ways but now im not
getting any readings. the monitor has been inside next to the heater.
maybe temp. is affecting readings?
i did a few voltage measurements at the crt pins with the 40w lamp
across C/gnd.
G1 20v
G2 167v
G B & R 120v
HTR 7v

if its not the flyback and i have B+ then what should i look at next?