Search found 337 matches
- Mon Mar 29, 2021 3:25 pm
- Forum: Welcome Area
- Topic: Hi All
- Replies: 3
- Views: 1887
Re: Hi All
Hi Axeman.
- Mon Mar 29, 2021 3:25 pm
- Forum: Hardware
- Topic: Spectrum +2 Grey 8bit IDE Issue
- Replies: 13
- Views: 4826
Re: Spectrum +2 Grey 8bit IDE Issue
Hi,
Which version of Pera's ROM have you tried?
Which version of Pera's ROM have you tried?
- Fri Mar 26, 2021 10:09 pm
- Forum: Hardware
- Topic: Composite mod issue: left side of screen missing - solved!
- Replies: 64
- Views: 14015
- Fri Mar 26, 2021 9:39 pm
- Forum: Hardware
- Topic: Composite mod issue: left side of screen missing - solved!
- Replies: 64
- Views: 14015
Re: Composite mod issue - left side of screen missing
My composite mod board in photo:
If anyone is interested I can share Gerbers or send you a PCB for postage costs.
If anyone is interested I can share Gerbers or send you a PCB for postage costs.
- Wed Mar 10, 2021 6:15 pm
- Forum: Hardware
- Topic: TS1500 no video
- Replies: 58
- Views: 15439
Re: TS1500 no video
These values are off the TS1500 SCLD pin 53 as this thread is about TS1500.
- Wed Mar 10, 2021 4:36 pm
- Forum: Hardware
- Topic: TS1500 no video
- Replies: 58
- Views: 15439
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...
- Tue Mar 09, 2021 6:13 pm
- Forum: Hardware
- Topic: CZ1500 (TS1500) reverse engineering?
- Replies: 7
- Views: 1949
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.
- Tue Mar 09, 2021 2:05 pm
- Forum: Hardware
- Topic: CZ1500 (TS1500) reverse engineering?
- Replies: 7
- Views: 1949
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...
- Sat Mar 06, 2021 4:56 pm
- Forum: Software
- Topic: PT3 Player for ZX81 with ZXPand+
- Replies: 15
- Views: 8364
Re: PT3 Player for ZX81 with ZXPand+
Nice and looking very good!
- Sat Feb 27, 2021 7:30 am
- Forum: Hardware
- Topic: TC 2068 weird colors
- Replies: 4
- Views: 2093
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 ...