Photo of my TC-2048
Photo of my TC-2048
Had this beautiful item shipped in from Portugal. Gave it a good cleaning before setting it up for a photo.
Forgot to buy a power supply so it's just sitting pretty here until then.
Forgot to buy a power supply so it's just sitting pretty here until then.
Re: Photo of my TC-2048
Tested it today and everything works great except for the TV output (composite monitor output works fine).
I'm very happy with the computer as it is. The seller was very accommodating and helpful.
Are there any use cases where the TV output would be desirable? I can't think of any, other than actually hooking it up to an old TV.
I'm very happy with the computer as it is. The seller was very accommodating and helpful.
Are there any use cases where the TV output would be desirable? I can't think of any, other than actually hooking it up to an old TV.
Re: Photo of my TC-2048
Hi,
Your TC2048 looks nice and I like the bright and good looking keyboard.
Anyway, there could be an issue with the RF modulator if the composite output works fine. The most accurate schematic diagram of rev.5 attached.
Your TC2048 looks nice and I like the bright and good looking keyboard.
Anyway, there could be an issue with the RF modulator if the composite output works fine. The most accurate schematic diagram of rev.5 attached.
Claudius
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Re: Photo of my TC-2048
@Kahenraz what are the games like for it and what made you want one of them
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Re: Photo of my TC-2048
Desirable? No!
If the composite video works fine, then I would not worry about it.
Which type of modulator is it? Which frequency does it modulate the video signal on to?
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
Re: Photo of my TC-2048
The hi-res schematic attached in the ZIP file.
Regarding Mark's query, any European TC2048 has got a UHF modulator which works on Channel 36. Timex used at least two makes of them, ASTEC UM1233 and Gintek UM-236E-1.
Regarding Mark's query, any European TC2048 has got a UHF modulator which works on Channel 36. Timex used at least two makes of them, ASTEC UM1233 and Gintek UM-236E-1.
- Attachments
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- TC2048 rev. 5 v1_3.jpg.zip
- schematic diagram
- (413.68 KiB) Downloaded 471 times
Last edited by McKlaud on Sun Mar 22, 2020 10:06 am, edited 1 time in total.
Claudius
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- 1024MAK
- Posts: 5189
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: Photo of my TC-2048
Claudius
Thanks for that information and for the hi-res schematic
Mark
Thanks for that information and for the hi-res schematic
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
-
- Posts: 77
- Joined: Sat Aug 18, 2012 12:44 am
- Location: Somerset-West, South-Africa
- Contact:
Re: Photo of my TC-2048
What's the number on that big SCLD chip in the middle?
ZX80/ZX81/ZX Spectrum