19v2000 help

7146aaron

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Ok. I need some help on this one. Quick synopsis. Game DOA. Got it to play blind and moved on to the monitor. I have my xy swings at p100 and the spot killer is now off. I have 30vac at fuse f100 and f101. I have 40vdc on the eht connector. I replaced the hv diode in the anode wire. I know the flyback is charging up. (figured that out the painful way, oops) Any ways. I am not sure of what wire does what on the eht connector. I have checked the brightness pot with an ohm meter and it is fine. With the pot turned up I have no picture including no dot in the center. I do not have another game running this monitor so I cannot swap parts to check them. Any help with this would be greatly appreciated.
 
Sounds like a loss of power on your deflection board. Fuses good? Check for cold solder, especially on the connectors?
 
Fuses

All the fuses are good and I reflowed all the headder pins. Ugh. I guess I will trace the power all the way through the deflection pcb next.
 
Is the gameboard playing blind? Do you have heater voltage? Is this an Atari game?...if so, the heater comes from the bottom transformer assembly (the same line that lights the coin door lights). It's got it's own fuse on the transformer assembly.

Edward
 
Is the gameboard playing blind? Do you have heater voltage? Is this an Atari game?...if so, the heater comes from the bottom transformer assembly (the same line that lights the coin door lights). It's got it's own fuse on the transformer assembly.

Edward


The game is an Asteroids Deluxe. It is playing blind. The heater is working. It started working after I reflowed the pins on the deflection PCB.
 
Check the 95V line...pin 5 at the high voltage cage connector...or pin 1 at connector P500 on the deflection board.

Edward
 
Check the 95V line...pin 5 at the high voltage cage connector...or pin 1 at connector P500 on the deflection board.

Edward

I went accross pin 5 and 7 on the EHT connector and I have 0 volts. 7 should be ground and I am testing in DC volts.
 
Yes, DC volts....and 7 is ground. Now the fun starts....why is that voltage gone?

Do you have another high voltage can you can swap in? Though, I'm betting the problem lies within the high voltage can. Check D901, C907...cold solder joint at high voltage unit.

Edward
 
Yes, DC volts....and 7 is ground. Now the fun starts....why is that voltage gone?

Do you have another high voltage can you can swap in? Though, I'm betting the problem lies within the high voltage can. Check D901, C907...cold solder joint at high voltage unit.

Edward

Um. I guess I need to check for the 95 vdc with the connector at the EHT attached then? No I dont have an extra to swap.
 
Checked

Ok. I checked pin 1 and used 7 for ground with everything attached. 0v was still the result. Checked d901 and it was good. C901 looked good? did not have an extra to replace yet. Reflowed pins and some other stuff on the hv pcb. I now have 95 volts on pin 1. Still no picture or a dot with brightness all the way up.
 
Ok. I checked pin 1 and used 7 for ground with everything attached. 0v was still the result. Checked d901 and it was good. C901 looked good? did not have an extra to replace yet. Reflowed pins and some other stuff on the hv pcb. I now have 95 volts on pin 1. Still no picture or a dot with brightness all the way up.

Did getting the 95 volts back cause the spot killer to light?

Edward
 
Spot killer

The spot killer is still off. It came on after I fixed some things in the beginning then I reseated some chips on the main PCB and it went out. That also was when the game started playing blind. I have checked for xy swings with a meter and they are there.
 
At this point, I'm kinda out of ideas. This is when I usually start swapping out/in known good parts. I'm stumped as to why the spot killer isn't lighting. It sounds like all voltages are now present. Could the spot killer LED be blown?

Edward
 
Spot killer

The spot killer worked the other day but that does not mean anything I guess. I am out of ideas as well. I just got a tested and working deflection pcb. It should be here in a few days. I will let you know how that turns out. I am thinking it is a problem with that. Hopefully. Thank you for all the help. Aaron
 
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