Brother WP-1 Repair

Janky Band Goop

A nice arty farty shot of the WP-1 running in an 80s styled "office". In actual fact it is running on my dinner table in my sitting room of a 2019 house. Everything on this machine works apart from the FDD. So lets try & fix it.

I have used some of the floppy disks that came with it for my Atari ST.

The WP-1 in its home enviroment, an office. I tested the dasy wheel printer while in the office to print off a page & it echoed though the whole thing. Kind of disturbed my colleges, but ah well, they knew what I am like.

As you can see it havs a lovely wide amber CRT, some models had green CRTs. Green or amber I find are very easy on the eyes, unlike todays monitors that rape our eyes with the brightst & harsh white light possible

The WP-1 is esentaly a singal board computer. The big DIP chip at the top is a custom Z80 with extra I/O & built in UART. The two EPROMs to the right containe the firmware. The two SMT quad flat packs chips are custom chips to handle I/O & some addressing. The FDD is sadly not controled by a FDD controler but driven by the CPU. Someone has made a C/PM port for this machine.

Getting to this point was a pig, you have to take the whole amchine apart just to get to the FDD. Once you have the FDD out, remove it from its caddy. Due to the FDD not using a standard interface, preplacment is impossible. On the up side it is a nice modular system. The moduals are CRT monitor, PSU, printer, FDD & computer board.

Once the FDD was finaly liberated from thw machine after way to much fighting. I was able to clean the head with IPA. The band that span the disk had turned to goo. Lucily it had only wraped round the pullys, Once it was cleaned off I was able to replace it with a new one from an asorted bag I got for this kind of stuff.

I put the drive back in reasembaled the whole machine as it is hard to test when its is opened up. The grand result was, the drive still did not work, although it did try to, almost. It could also be the disks that came with it are dead, most of them were copyed disks.