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Where is the resistor on the schematic ? I looked on ST and STFM and just see MPFINT going from MFP to GLUE, I don't see a resistor anywhere ?
- Mon Sep 24, 2018 12:37 pm
- Forum: SOFTWARE PROGRAMMING & DISCUSSION
- Topic: Flying Shark level corruption on both FlashFloppy and HxC
- Replies: 10
- Views: 59
- Mon Sep 24, 2018 11:22 am
- Forum: STF REMAKE PROJECT
- Topic: ALPHA MODIFICATIONS
- Replies: 35
- Views: 829
GLUE DATALINE FIX A "good" mistake here.. While GLUE states D0 & D1 on the GLUE itself, the actual data lines are D8 & D9! So nothing will be setup right internally on the GLUE and pretty much everything it controls will be "wrong" because it will be getting bad data. The fixes are thankfully not t...
- Mon Sep 24, 2018 10:54 am
- Forum: PSU (power supplies)
- Topic: ASP34-2 REV1 recapping how-to
- Replies: 3
- Views: 116
It can only really be, bad soldering, solder shorted to a via somewhere, bad contact on sockets, or bad chips. Other than metering everything out which is very daunting vs each signal on the schematic, it's the only way to find out which line are "broken", there isn't much else if its not even tryin...
One thing to look at, is scope out the 4MHz to MMU, and E-clock to ACIA... see if there is any bad ringing on the signals... Really need the keyboard or rs232 working so we can control diagrom.. it does have a video test which displays a image.. The video issue kinda looks like the bitplanes are get...
IRQ has a pull up.. 1.JPG 2.JPG Whats probably confusing things is some of the single resistors I have moved to a resistor pack somewhere instead. It was done to reduce the amount of parts/soldering/space. I would suggest actually removing those resistors you added, possible the MFP can't work with ...