Fading neck glow?

videodan

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Neck glow comes on from a G05-805 13" vector, then fades after a few minutes until it disappears. What's the issue? Thanks.
 
sounds like an issue with the heater circuit. had this on a K7000 once. it would turn on and run for awhile and then fade out. if I beat the shit out of the monitor frame with my flashlight a couple times, it would turn back on for about 20 seconds and fade again. :p

more than likely you're faced with a cold solder issue. if you're not too horribly familiar with that chassis, I would say resolder anything that looks suspect on the neckboard. perhaps you'll get lucky.
 
That's a 15" vector. Try reflowing the solder on the connector pins of the deflection board. I've read that's step 1 with these monitors and both of my g05-805's had visibly bad solder joints. The most recent I worked with had no neck glow at all until I did that.

Also there's no neck board to speak of - just a socket.
 
Unlike most monitors, the Electrohome black & white vector needs an external heater voltage....the chassis doesn't generate it itself. Atari used the transformer in the power brick to supply this voltage. Approximately 6 volts AC exits the transformer via the 15-pin amp connector.....then straight up the the neck socket. This voltage also supplies the juice to the coin door lights. Are they fading, also?

Look at both sides of the 15-pin connector on the transformer assembly...look at the pins for any obviously issues (oxidation, backing out of the housing, etc.).

Edward
 
That's a 15" vector. Try reflowing the solder on the connector pins of the deflection board. I've read that's step 1 with these monitors and both of my g05-805's had visibly bad solder joints. The most recent I worked with had no neck glow at all until I did that.

Also there's no neck board to speak of - just a socket.

Unlike most monitors, the Electrohome black & white vector needs an external heater voltage....the chassis doesn't generate it itself. Atari used the transformer in the power brick to supply this voltage. Approximately 6 volts AC exits the transformer via the 15-pin amp connector.....then straight up the the neck socket. This voltage also supplies the juice to the coin door lights. Are they fading, also?

Look at both sides of the 15-pin connector on the transformer assembly...look at the pins for any obviously issues (oxidation, backing out of the housing, etc.).

Solid advice from both folks here. Header pins are absolutely the #1 trouble spot with B&W V2000 & G05 monitors. Many many problems from being completely dead to partial deflection to spotkiller to no heater are caused by bad solder on the headers. Start there, because that's often all that's wrong.
 
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