开云体育

Yes, you can often get by just replacing the small capacitors on on or two of the vertical boards. I must confess that I’ve done this rather than the full recap of the supply. So far, I’ve been

I am not an expert in service monitors. But I repair a lot of old electronics, and not only in them, but also in my own E8285A, the problem is mostly the same - old tantalum capacitors. I'd begin

I meant to add that Amtronix sells a rebuilt supply with your exchange for about $ 350.? I got one of them about 10 years ago for about $ 250 I think.? ? I later repaired 2 of the supplies in other

Guaranteed to be bad capacitors. Attached is a repair guide for the 8924C from the old groups I downloaded and a list of caps I replaced in a couple of 8924 power supplies a while back. In your

It is probably some bad?electrolytes capacitors in the power supply.? That is a well documented cause of the 8924c and others of the series not coming on.? Many old switching supplies are like

My unit has stayed unused for several years as I have dealt with cancer. I went to check deviation of a a repeater last night and found that it would not turn on. I turned it around to see if there

anyone have the CLIP for the A2 card used in the 8920B/8924C ? This has the variable notch filter option. The one for the 8920A is close but have an issue surrounding the variable filter. The variable

Follow up: well I finally go to test it and it worked OK except I noticed after about 30 minutes it was dimmer. If I kill power and restart it it come back on bright. It never went away totally so

Don't forget to post your results here =) Em 19/04/2021 19:54, William Verstelle escreveu: -- ---8<---Corte Aqui---8<--- https://www.tabalabs.com.br https://tabajara-labs.blogspot.com

Ok thanks I’ll try none first then add if needed. Got chip already mounted on a board today so will try is soon. thanks Guys!

I didn't use them, and it worked... Em 18/04/2021 22:02, William Verstelle escreveu: -- ---8<---Corte Aqui---8<--- https://www.tabalabs.com.br https://tabajara-labs.blogspot.com

either will work.

The 50k resistors, how critical is that value, I have 47k and 56k will either of these work? I guess I could use 2x100k if needed. Bill N7OQ

Wow again, great information, I get my lm-1881 Thursday or wed. Will let you know how it works out, thanks everyone, Bill N7OQ

To use the GBS-8200 converter with the hp-8924c service monitor to use with an external VGA monitor. Obtain: 50 K ohm SMD resistors 4 required LM1881N IC sync seperator.1 UF capacitor--2 required680

My guide: https://tabajara-labs.blogspot.com/2021/01/como-ligar-um-monitor-vga-no-hp-e8285a.html ---8<---Corte aqui---8<--- http://www.tabajara-labs.blogspot.com http://www.tabalabs.com.br

Bill Here are a couple of old things i saved re getting the GBS-8200 workings with 8924 from the old Yahoo groups. There is also one on power supply repair plus some notes on power supply caps I

Hi group, I want to replace the CRT monitor in my 8924 and bought a GBS-8200 board. Well I saw a picture where they plugged it into the green (Y) rca jack on the 8200 board and this worked to a degree

Thank you everyone, I’ll order 105 degree caps and do a recap. So far everything else seems to be working. This is a great forum. Bill N7OQ

As others said, it is most likely the capacitors.? About 90% or more switching supply problems are the capacitors. I had an 8924c that acted similar.? I took a hot air gun from a SMD rework station