G07 dead... need direction

Malice95

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So I have a g07 monitor in a jr. pacman
Game plays blind and responds to controls.
Monitor has power and is generating high voltage
(i discharged it.. nice spark). I dont see any neck
glow when the monitor is on and nothing for a
picture even if I crank the brightness all the
way up.

Any suggestions on where to begin? Havent had one missing the
neck glow yet so is it still a cap kit canidate or should I focus
elsewhere first?

Thanks,
Malice95
 
So I have a g07 monitor in a jr. pacman
Game plays blind and responds to controls.
Monitor has power and is generating high voltage
(i discharged it.. nice spark). I dont see any neck
glow when the monitor is on and nothing for a
picture even if I crank the brightness all the
way up.

Any suggestions on where to begin? Havent had one missing the
neck glow yet so is it still a cap kit canidate or should I focus
elsewhere first?

Thanks,
Malice95
from what I have heard about these monitors a cap kit and a new fly back some times brings them back to life if not then you should check else where
 
Thanks for the advice Luke. I'd prefer not to just start replacing
parts without some direction. Any tests I should conduct to
indicate cap kit? flyback? deflection board? HV?

Thanks,
Malice95
 
Hi Malice;
First, take a multimeter, and check the voltage at each end of that large white resistor hanging off the left side of the monitor chassis. They'll be two wires, put the red probe on one and the black probe on the frame of the monitor. Let us know what voltage you get. It's probably up around 160 meaning that the monitor is in high voltage shutdown, which is why you don't get a picture.
 
I get 63v on the ac settings and 82v on the dc setting.. which type of
current is it?

Both sides of the resistor measure the same values.
 
If all original, I would go for the rebuild. As for the immediate issue, if there is not any heater, I'd trace the heater circuit back and touch up any solder joints. But since you're getting both AC and DC readings (it should be only DC you're reading) there are other things going on (unless you're doing it wrong). The reading you're trying to get is called the "B+" voltage.

On this monitor, on the tab farthest away on that resistor, it should be ~120VDC. You shouldn't be able to read any AC (or possibly get a /very/ faint reading) at all.

Go with the rebuild. You won't be sorry.
 
I get 63v on the ac settings and 82v on the dc setting.. which type of
current is it?

Both sides of the resistor measure the same values.

Try it once more, just on dc. Put the black probe on the chassis of the monitor, and the red probe on the back lead, and then the red probe on the front lead and see if you're still getting 82v.
 
Hi Malice;
First, take a multimeter, and check the voltage at each end of that large white resistor hanging off the left side of the monitor chassis. They'll be two wires, put the red probe on one and the black probe on the frame of the monitor. Let us know what voltage you get. It's probably up around 160 meaning that the monitor is in high voltage shutdown, which is why you don't get a picture.

its excately my problem over 170 volts on mine!!! what it cause this??bad cap flyback shut?? ,bad transistor??
 
both x 901 and 902 are ok i dont have x901 on my chassis ist a 13 inch model so it can be.... thanks for your help!

also when i have look at my board i check and i have see the R 507 was completely burn and crack in two part what is the value of this resistance i cant find it anywhere in flow chart or manual schematic... im desperate
 
I said R908, not R901. :)

On a CBO (19") it's 33 Ohms. Orange Orange Black.

ok im take a look right now :eek:k i aint got «r908 on my chassis but like i said before the «r507 was totaly blow up i have change for a similar resistance but i got again 165 volts on b+ do the flyback is in cause of no neck glow «????
 
ok im take a look right now :eek:k i aint got «r908 on my chassis but like i said before the «r507 was totaly blow up i have change for a similar resistance but i got again 165 volts on b+ do the flyback is in cause of no neck glow «????

The flyback has NOTHING to do with neck glow. Neck glow is 6.3vac across the heater in the tube.
 
The flyback has NOTHING to do with neck glow. Neck glow is 6.3vac across the heater in the tube.

thanks «dokert but i cant find the trouble mine is a g07 fbo 902 model im looking to every schematic and im very stuck here ... maybe its good for trash im reading other troubles heres to find the light to the end of tunnel!:)
 
The flyback has NOTHING to do with neck glow. Neck glow is 6.3vac across the heater in the tube.

Well, technically, the heater voltage is coming from the flyback, no?

However HV shutdown will definitely cause no neck glow,even with a good flyback...
 
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