G05-802 Reflow Headers...

adams_arcade

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G05-802 Reflow Deflection board

Any reason I cant reflow the deflection board without discharging?

I don't have a 1 M ohm resistor tonight .... sucks...I have been told I need one to discharge this monitor. <== Is this true? I was hoping to discharge it like a raster.
 
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For what it's worth -- and I'm a noob so don't take this for gospel -- I just did this, had one of these monitors unplugged from my battlezone for 24 hours and attempted to discharge it, and it had nothing to discharge. No pop, no nothing. I also read about the need for those resistors, but all I did was wrap a wire around a screwdriver, put an alligator clip on the other end and clipped it to the frame, and kept my other hand in my pocket as I fished around for contact under the suction cup thinger. Biggest anticlimax of the year so far.

I don't think that high voltage gets anywhere near the deflection board anyway, so if you're reflowing anything on there I believe you can safely remove that board without even bothering to discharge. Again, I'm a noob, so might be wise to wait for more experienced feedback, but I just did exactly what you're attempting and had no issues.
 
Im thinking there may be no need to discharge as the anode does not connect to this board like a raster. Outside of the two big caps I dont see anything to "bite me".

Hopefully the Pro's will offer an opinion.
 
For what it's worth -- and I'm a noob so don't take this for gospel -- I just did this, had one of these monitors unplugged from my battlezone for 24 hours and attempted to discharge it, and it had nothing to discharge. No pop, no nothing. I also read about the need for those resistors, but all I did was wrap a wire around a screwdriver, put an alligator clip on the other end and clipped it to the frame, and kept my other hand in my pocket as I fished around for contact under the suction cup thinger. Biggest anticlimax of the year so far.

I don't think that high voltage gets anywhere near the deflection board anyway, so if you're reflowing anything on there I believe you can safely remove that board without even bothering to discharge. Again, I'm a noob, so might be wise to wait for more experienced feedback, but I just did exactly what you're attempting and had no issues.

no pop doesn't mean jack shit...always cover your ass around HV. good soldered wire to your tool, proper equipement.

fwiw, i've had some not pop initially...and then i always followup with another go at the anode, sometimes there is a pop 3-4 times after the intial time. why not be safe.

some say use a resistor, some say otherwise. i've seen people reflow the main pcb without discharging...but, they also have been doing it for years. it's all preference. also, you don't HAVE to do it tonight...get the proper shit.
 
Do you know how a monitor discharges itself?

There is no discharge resistor as such, it discharges through the flyback to ground via a string of components and connectors

If one of them components or connectors is faulty the discharge will not properly occur

So you would get a boot

So the ironic part is: If it needs reflowing it may not be discharged, if the connections and parts are perfectly good it will be discharged - so no need to re-flow

Moral of the story, as per ALL Manufacturers specs

Always unplug the cord and discharge the monitor before working on it!
 
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