Main > Monitor/Video Forum
WG K7000 dead... flyback? (SOLVED)
MKFan4Life:
One more question. Everywhere I look I see that R301 is supposed to be 220 Ohm 15W. My chassis has always had a 180 Ohm 25W there. Worked for several years, but I can't see anywhere that says a 180 Ohm can be used there.
Heck, even Mouser at the moment doesn't appear to have an exact replacement for what is recommended. Ebay, I only found one at 50W. (There are some through-hole versions, but only one chassis-mount style.)
Your opinion?
:-\
grantspain:
does it have another resistor soldered underneath
princess prin prin:
180 ohm 25W is used sometimes, for instance in the medium resolution version:
https://usermanual.wiki/Document/AtariMonitorTM3211stPrintingWG19inMedium19K7635.449281281/view
MKFan4Life:
--- Quote from: grantspain on May 03, 2020, 07:08:55 am ---does it have another resistor soldered underneath
--- End quote ---
No. Just the one. It hangs off the side of the large heatsink. I desoldered one end to check it's resistance recently, and it was about 185 Ohms. (Got a funny low reading around 28 Ohms in circuit, likely due to something in parallel with it, so wanted to check for sure.)
MKFan4Life:
--- Quote from: princess prin prin on May 03, 2020, 08:34:28 am ---180 ohm 25W is used sometimes, for instance in the medium resolution version:
https://usermanual.wiki/Document/AtariMonitorTM3211stPrintingWG19inMedium19K7635.449281281/view
--- End quote ---
Never knew that. Maybe a tech had a 180 Ohm on hand and thought it would work in a K7000 series, long before I owned this machine/chassis.