Search results

You need to check the fuse output with an ohm meter, if it pops instantly you have a short. Find out why.

I've seen this once and fixed it by replacing the full display, maybe its the cable or something?

PM Me

I've done it before, not a problem. In theory, ceramics aren't as good at ripple rejection due to being non-polar, but it works.

I've got a 8mb card for my pb100 and it has no such chip or connector. Only 8 ram chips.

If you read the thread: This is actually common when dealing with EMC. The zero ohm resistor has some parasitic inductance, so the capacitor acts like a better path to ground at high frequencies. Many designs will have options for a few different ground coupling layouts and then test to work out...

This?

It would be need if you reformulated the board into an ATX for factor offshoot.

Not bad, but still, Parts + assembly time + shipping = sell it for 100$ Feel free to make/sell your own version if you think the price isn't fair. I'll offer this reference for use of the Rom disk also: http://www.synack.net/~bbraun/classic2.html

4 Layer boards are expensive. It could be cheaper if I removed the rom connections and made a two layer board. Perhaps I'll do that once my current stock is sold out? Oh and that connector is 15$ not including shipping...

Here is my final design: I added the two 10m pullup resistors and two extra transistors to function as an AND gate to overide the latched comparitor and release the relay when charging is complete. This will also necessitate a small pcb redesign:

Hmm, no kidding.

When was a kid, in school, we had Hyper studio, maybe you should have a look t that before going too wild?

You should scrape the 3d printed objects thread.

Medium size conical.

Sure, Here's basically what I do: 1. Place the chip and solder one pin in each corner 2. Then apply paste flux to all pins 3. Drag solder each pin with no concern for obvious bridges 4. Dip some wick in paste flux and drag the hot solder tip over all pins with wick in between to remove...

That has a lot to with the cost of a 4 layer board, even the connector is 10$. My design was released on this forum also.

Yep, PMMU usually has a gold top.

3 pin connector? Is it toward the top of the crt? Could it be the microphone?

Here's and Idea f the hack I did: