Re: Sega G80 System question

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You need to check the plug that you are using, I suspect there are TWO
plugs up on the top where a light OR the speaker could be plugged into.

Check the "speaker" connector plug with a voltmeter with the speaker
unplugged, I suspect you will find it has 115VAC...for the upper
fluorescent light.

John :-#)#

At 02:06 PM 10/07/2002 -0600, Walt wrote:

>Hoping someone experienced with Sega's G80 System can help me out. This is
>my first foray into the world of the Sega convert-a-game system, so I am
>still learning. :-)
>
>I've got the guts out of an Astro Blaster I am trying to get up and running.
>Before testing out the boards, I wanted to make sure the Power Supply/Audio
>Amp board was working properly. I've tested all the voltages and all are
>ok, so I moved onto the audio amp portion.
>
>I wanted to quickly hook up a speaker to see if I got any sort of hum or
>feedback out of the speaker hoping that it would at least give me a
>prelimianry indication whether or not the amp was working. Weird thing is,
>as soon as I hook up the speaker connector to the header on the PS board,
>the main fuse in the AC junction box blows. None of the fuses on the PS
>blow - they are all fine. Replace the blown fuse (yes I have the correct
>amperage fuse) and leave the speaker un-plugged and it is fine. Plug it in
>again and the fuse blows. I do get a few seconds of feedback out of the
>speaker before the fuse goes.
>
>Any one have an idea of where to start troubleshooting?
>
>-Walt
>
>
>
>
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Received on Wed Jul 10 14:44:43 2002