Tech Help: Stern MPU 200

Chris

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Dec 7, 2003
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Try swapping U11 (bottom 6821) and U10 (middle 6821), see what happens.

Chris

<bzahra@cogeco.ca> wrote in message
news:1127624812.302025.309210@g14g2000cwa.googlegroups.com...
> shows 4 flashes? ,what is this problem?
>