atari_thomas

Thank you - I got it! I removed the device "1050 disk drive ..." (pic #2) and my emulator is booting fine from any ATR image. Check out my retro Atari video (German) -> https://youtu.be/zMEw0pcmzLM

Hi, I just installed Altirra 3.0 and I try to boot from a floppy image. So I successfully added (System > Devices) a "1050 disk drive (full emulation) - D1:" Next I "inserted" (File > Disk Drives...) a floppy "Dos2.5.atr" as seen on the attached picture. Then I reboot (Shift F5) and I hear that buzzing Atari sound and get my Basic "READY" I don't hear the usual beeps when an Atari tries to access a disk drive. I also used another disk image, tried the cassette emulation in Basic (works fine) Even the (File > Boot Image) option isn't working - I get "READY" again. I even don't get a "BOOT ERROR". My Altirra behaves like a physical Atari without any disk drive. What's wrong? Do I need a firmware for my ATARI 1050 virtual drive? (I correctly installed the firmware for Baisc, XL, 400/800)

In the 80s me and my friends all had Ataris. But lot's of magazines wrote about the Intellivision and praised its great graphics and great games. So, 20 years later I finally bought an Intellivision on Ebay and tried to play it frequently. Unfortunately, at least to me, I never saw any great graphics and the games were pretty shallow. I also never got used to this strange controller. Well ... to keep Intellivisions honour, the enclosure desing is really fabulous.

In my case, here with my PAL-Ataris, the picture doesn't get better with the video mod. I modded two different 800XLs with different revisions. Maybe I did something wrong. Mimo - you're right. It really depends on the TV set and on the video decoder installed in the TV. Looks like 'old' machines only like 'old' displays. I guess we're all spoiled by digital HD 42" displays ... On the other hand ... I have an Atari 2600 VGS connected to an LG 32" LCD-TV (from 2008) via HF and I get an PERFECT display ... no 2600 video mod needed.

Thank you for your replies ... here 're the results of my attempts http://atariage.com/forums/topic/41580-quick-easy-video-upgrade-for-800xl/page-7

Well ... I tried this mod now in 2013, so 9 years after the first post. I used an Atari 800XL-Board PAL (european version) rev.a & another board rev.d. I removed or added the resistors as described in the tutorial and now I have the luma-out (Pin 4 of the DIN jack) and the chroma-out (end of the resistor). I tried the Atari with a Sony KV21T1D Trinitron CRT-Television (20+ years old) and a LG Flatron M1921TA TFT-TV (6+ years old) The results - Sony Trinitron I'm using only the composite (fbas) signal from the Atari 5-pin din-connector (pin #4) and connect it via a 4-pin S-Video cable connector (mini-din) into a Scart adaptor into the Sony. The Sony detects a composite signal coming through it's s-video connector (actually the wrong connector) and shows this great picture: Then I used the 'right' connector. Compsite signal from Atari's 5-pin din-connector (pin #4) connected to the Sony by a RCA connector. The Sony get's the same signal by another input and is decoding it differently ... The results - LG Flatron I'm using only the composite (fbas) signal from the Atari 5-pin din-connector (pin #4) and connect it via the correct rca jack to the LG. Next I cut off the right lead at c54 to get only the luma signal at the Atari 5-pin din-connector pin #4 and connected it with my 'new' chroma signal to a 4-pin S-Video connector (mini-din). The LG has a real s-video 4-pin female jack ... so everything should work all right now. This is what i got ... Both pictures were not stable. The LG displays either the one or the other, swaps every second Well ... maybe I did something wrong but I tried this at a rev.a board and another rev.d board (both PAL), same results. I was suprised to get all these different results with different monitors.

Hello, I'm looking for a tutorial to upgrade my 600XL & 800XL PAL with a S-Video output. The PAL version already has a built in composite output (DIN connector) so the mod is different to the NTSC version. I already googled a lot and also found some threads here on AtariAge, but most mods I found are for NTSC or the threads lead to broken links or the tutorials are incomplete. Does anybody have a working S-Video mod tutorial for PAL Ataris? These are my boards ...

The printing on the Red-Bar-ROM-Error CPU says: 8323 co14806-03 c10794/322 Thailand It looks like this is the original CPU of the Atari 600XL and nobody opened the case before.

Boooaahh ... I fixed it, finally. I got a second (broken, shows no picture at all) 600XL, where I took the ICs from. First I replaced the RAMs, then the OS-ROM, the BASIC-ROM, the Pokey, the PIA-Chip ... but always the same Red-Bar-ROM-Error while testing the XL. Then I swapped the CPU ... and now the Memory Test works flawless for two days. Really strange ... the 600XL actually worked fine, even with that (defective?) CPU, just only the Memory Test failed

Where are these ROMs located in my picture (No.1-7) ?

Is there a common ROM problem with the 600XL or 800XL? I have some other XLs and some show up a problem with the RAM but I've never seen this ROM issue. Unfortunately I didn't run the Self Test before I upgraded the RAM. Well ... indeed it looks like I have to swap some ICs from my other 600XLs for testing.

My Atari 600XL lives in Germany and has a PAL modulator plus a composite video port.

Hello ... I have a problem with my Atari 600XL. Last week, after years I took it out of the box and it still worked well. I decided to upgrade the RAM from 16K to 64K. I found this tutorial http://atariage.com/forums/topic/183694-600xl-64k-upgrade-pictures/. Now my machine has 64K of RAM and it works without any problem (apparently). When I do the built in Memory Test (picture) it shows no error the first 1-4 runs, but then the left ROM bar turns red ! Well, the XL works fine so far. I can copy disks 1:1 (the copy prog. uses the whole 64K RAM), I can play games without any issue. I can't find any error while working with the XL. Has anybody an idea why the Memory Test shows up that red bar? I already removed the ICs and cleaned their pins. Maybe the Atari has this issue because I'm running it without the metal shielding? Thanks

Hi, I got a problem with one of my 1010 tape drives. First of all the drive looks ok. The mechanics are fine, the belts are clean and tight and the counter works. I already cleaned the head and all connectors and contacts. Rewinding and fast-forwarding are working. But nevertheless I always get the error message "BOOT ERROR", when I try to boot from commercial, original game tapes. I put in the game cassette, press PLAY, hold down OPTION and START and turn on my Atari 800XL. The drive starts and I hear the (correct) data sound from my tv speaker. After 1-3 blocks I get the "BOOT ERROR" message on my screen and the 800XL is starting the self test. I already tried to adjust the tape head position with a little screw driver. When I turn the screw to the left, the data sound sounds really bad and when I turn the screw to the right it also gets worse. So I guess the head is already in a good position. Of course, I tried different commercial tapes. When I write a little Basic program an 'csave' it, saving works but I can't reload it from tape. Think it is an adjusting issue or the head is kaput ?

Dziękuję! An 'Atmega'-Chip ... again! I made some experiences with Atmega while assembling my 'Uzebox' http://en.wikipedia.org/wiki/Uzebox Looks like the adapter Atari-Keyboard -> USB will be a project for next christmas