Billythegrape

Ok will do.

Clock signal: With my scope set to 1x, I don't get a waveform anywhere on the cart pins. I get nothing when pressing the reset button.

I will check both those and report back. How do you check the crystal?

I have a model 1 intellivision. It was crusty, so I cleaned it thoroughly, including scrubbing the crap out of the cart port. I bought 4 used games: Night Stalker, SPace Hawk, Space Armada, and Donkey Kong. Disassembled the carts and scrubbed the contacts with silver polish. Then and only then did I try to use the damn thing, which gave me the black screen no matter what angle, level of insertion, or game cart I used. I know, this is not an easy or straight forward thing to address. The only "service manual" I've been able to find has instructions on using a diagnostic cart that, for all intents and purposes, doesn't exist. Here's what I've done with the mother/daughter board: - Checked voltages into and out of the power supply board per the intv website faq, all good. - Replaced all polar caps on both boards. - Replaced 2 2N3906 transistors as the board was brown underneath them. - replaced both voltage regulators on the PS board - reseated and deoxit-ed the chips, scrubbed sockets with deoxit - hardwired the ribbon cable as it was corroded AF - tried piggybacking some of the 14 pin chips with ones I had from a C64 repair - checked the RF module visually, seems ok. Nothng made any difference. Yes, I have pressed the reset button. I have an oscilloscope, DMM, soldering station, and am pretty handy, but without any sort of diagnostic guide this is difficult. Does anyone have any suggestions? I have attached photos of the boards.

Just need to know a place to get one for a reasonable price. Doesn't need to be original, so even just the measurement of the male plug would be great. I know it's 9v and half an amp. Just tired of replacing batteries, especially with mcwill fucking thing eats them when I play chips challenge. Oh, and north America is where I'm at.

Well...anyone?

Soldered the new voltage regulator onto the mcwill. Nothing. In fact, the lynx won't function with the screen connected. Took vcc off mcwill, chips challenge music blasts out of the speaker. Touch the vcc lead to the mcwill, the music gets quiet, then goes drrrrrrrr like a cd skipping. Disconnect, turn lynx on, music is back

Found a toasted voltage regulator on the pcb for the mcwill. Ordered one, will update progress.

Tennessee, USA.

It's a real SOB, that's for sure. I need a proper soldering station. I've been fussing with small electronics for upwards of 20y and this is this hardest project yet.

Replaced 30ohm resistor r56. Now everything is working but the screen. When I attach the screen the sound reduces in volume but does not turn on.

Once I removed the bridge, I got 4.5v from vcc to gnd. But still the screen will not power on.

Close ups of ribbon connections. Removed mcwill. There was a bridge one the little one but I removed it.

Here are far away ones.

Ok here are some.