Search found 337 matches

by McKlaud
Mon Mar 29, 2021 3:25 pm
Forum: Welcome Area
Topic: Hi All
Replies: 3
Views: 1778

Re: Hi All

Hi Axeman.
by McKlaud
Mon Mar 29, 2021 3:25 pm
Forum: Hardware
Topic: Spectrum +2 Grey 8bit IDE Issue
Replies: 13
Views: 4642

Re: Spectrum +2 Grey 8bit IDE Issue

Hi,

Which version of Pera's ROM have you tried?
by McKlaud
Fri Mar 26, 2021 9:39 pm
Forum: Hardware
Topic: Composite mod issue: left side of screen missing - solved!
Replies: 64
Views: 13620

Re: Composite mod issue - left side of screen missing

My composite mod board in photo:
Image

If anyone is interested I can share Gerbers or send you a PCB for postage costs.
by McKlaud
Wed Mar 10, 2021 6:15 pm
Forum: Hardware
Topic: TS1500 no video
Replies: 58
Views: 15164

Re: TS1500 no video

These values are off the TS1500 SCLD pin 53 as this thread is about TS1500.
by McKlaud
Wed Mar 10, 2021 4:36 pm
Forum: Hardware
Topic: TS1500 no video
Replies: 58
Views: 15164

Re: TS1500 no video

TS1000 mainy left factory with 2C210E ULA onboard. This variant was good with "back porch" in the video signal. TS1500 were build around Timex TS 1500A chip and this SLCD generated to the correct video signal with back porch. I took some measurements last weekend and they are are as follows: * white...
by McKlaud
Tue Mar 09, 2021 6:13 pm
Forum: Hardware
Topic: CZ1500 (TS1500) reverse engineering?
Replies: 7
Views: 1927

Re: CZ1500 (TS1500) reverse engineering?

Oh, I am so sorry, I didn't know. I can see CZ1500 works well. So, have a lot of fun with the machine.
by McKlaud
Tue Mar 09, 2021 2:05 pm
Forum: Hardware
Topic: CZ1500 (TS1500) reverse engineering?
Replies: 7
Views: 1927

Re: CZ1500 (TS1500) reverse engineering?

Hi, Your CZ1500 is the same like any late TS1500. The main difference is that there is a blob of solder on the 50Hz SELECT jumper. Looking at your photos I can say that the RF modulator is NTSC type like in my American TS1500. You can easily modify this machine to the composite video output. Such mo...
by McKlaud
Sat Mar 06, 2021 4:56 pm
Forum: Software
Topic: PT3 Player for ZX81 with ZXPand+
Replies: 15
Views: 7960

Re: PT3 Player for ZX81 with ZXPand+

Nice and looking very good!
by McKlaud
Sat Feb 27, 2021 7:30 am
Forum: Hardware
Topic: TC 2068 weird colors
Replies: 4
Views: 2046

Re: TC 2068 weird colors

Hi, Nice board and all IC's socked. Anyway, when you finish re-cap, all colours should be back to normal. If not, check continuity of traces between the SCLD (ULA) and 22uF capacitors and between these capacitors and the PAL encoder (MC1377 type) inputs. I would suggest cleaning both RCA connectors ...