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Chandler

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Posts posted by Chandler

    USA SC 1224 PSU in UK SC 1224 monitor - how to mod?

    in Atari ST/TT/Falcon Computers

    Posted

    OK so i have an original UK 240v SC 1224 colour monitor and the PSU blew a long time ago and it's not repairable and they don't exist to replace

     

    I do have a new 110v USA PSU which i can fit in place but obviously there is the voltage difference

     

    However the voltage outputs of the PSU would likely be the same as i can see the output connections are the same on both UK and USA PSU's with same coloured wires and plugs, just in different places!

     

    The only difference is the UK on/off rotary switch has 4 x wires (live and neutral IN and then live and neutral OUT) and the USA on/off rotary switch has 2 x wires with a capacitor across the 2 terminals

     

    I have a USA rotary switch also

     

    So what i'm asking is, if i fit the USA PSU with USA on/off switch and use a 110v step down transformer to power the monitor then would it work?

     

    Obviously i am just looking at all this carefully first before i attempt to plug anything in at all 

     

    Any advice would be appreciated thanks :)

    SC 1224 USA 117V Goldstar schematics needed (for PSU)

    in Atari ST/TT/Falcon Computers

    Posted

    Thanks but i have that manual and it's not a lot of help for what i need

     

    I basically have a UK model SC 1224 with a totally dead and non repairable PSU

     

    They are unavailable on planet earth from what ive found and there is no info online that relates to the part numbers, it is truly obsolete!

     

    Anyway i managed to source a NEW USA 110/117V PSU so what i want to do is fit this USA PSU into my UK sc 1224 as i believe the output voltages should be the same

     

    I just need to be 110% sure of everything

     

    Hence wanting a schemetic of the USA PSU or at least the output voltages to be sure of everything before i attempt to test

     

    Need pictures of SC 1224 colour monitor PSU cable connectors please

    in Atari ST/TT/Falcon Computers

    Posted

    Anyone in the USA or with a USA 110/117V model SC 1224 colour monitor with Goldstar tube / PSU

    Could you post a picture please of the open end of the PSU where the wire connections plug into it, there are a few with white plugs

    I need to see the colours of the wires and even better where they go!

    Only a USA 110/117V model please (no UK or European 220/240V types as they are different)

    If anyone can help that would be great :)

    Jaguar non working - black screen & high pitch light buzzing sound from motherboard near CPU

    in Atari Jaguar

    Posted

    Trying to repair a Jaguar i recently picked up which doesn't work

     

    It has the original Jaguar PSU and that works ok and has the correct voltage

     

    I have cleaned and cleaned the cartridge port and game cart contacts, they are both gold and clean!

     

    Power on the jaguar stripped down to bare motherboard

     

    Green light illuminated with game inserted - black screen, nothing more, tried this many times with different games

     

    I can hear this high pitch buzzing / hissing sound from around the CPU area, nothing getting hot around there

     

    I don't know it's history but it was bought new and is boxed so i don't assume it has had the wrong power adaptor inserted

     

    I have looked for the usual U38 / REG 1 / Capacitor blown issue and there are no signs of damage on this machine

     

    Is there anything else i can test?

     

    I have tested voltages around the CPU and they are 5v so i don't think the console has a power issue

     

    Any ideas?

    HUGE list of NEW original Atari custom IC chips / transistors etc

    in Buy, Sell, and Trade

    Posted · Edited by Chandler
    spelling mistakes

    Here's an updated list as a lot has since sold...


    C302183-002 (STE, MegaSTE, ST Book SMT MCU + Glue 144 Pin, with built in Blitter I.C) - £5
    AN5790N Goldstar PAL SM124 Monitor - £2
    TDA1170D Goldstar SM124 Monitor - £2
    TDA1170N Quadrant SM147 Monitor - £2
    TDA4601 Goldstar SC1224 Monitor - £2
    AN5265 (JVC SC1224 / Goldstar SM124 / SC1224) - £2
    CO12296D-03 ANTIC - £10
    CO14795-12 (PIA 6520) - £10
    CO14806C-29  Atari Modified /Custom 6502C MPU  - £10
    C101601 (ST / Mega MMU SMT 80 pin) - £3
    MC1377P RGB to PAL IC - £3
    C398082-001A  I60801 (TT Video 84 pin PLCC)
    C300580-001  (TT PLCC Funnel) - £3   
    C301224-001 I60615, SCX622S, SCX6225 TT / MegaSTE 84 Pin PLCC GLUE)
    C300586-001 CPU 68030 32Mhz TT
    C300581-001 (TT PLCC DCU 68 pin)
    C301223-001A  (TT 84 Pin PLCC DMAC)  
    CO70122-002  HD6301VIP  (ST / Mega / STE / MegaSTE / Stacy / TT /Falcon Keyboard CPU)  - £5
    C101622    (Mega / MegaSTE Real Time Clock / RP5C15)  
    C100110-001  (ST / Mega DMA)  - £5
    MC146818AP    (MegaSTE / TT clock chip)  
    C014806 – 35 (XL/XE CPU) - £5
    C010750-03
    UM6526PI – 2600 TIA - £15
    C026307-001 (GERMAN TOS 1) - £5
    C301168-001A
    C301179-002A
    C060474 (74LS51)
    C021697 – 11
    C101727 – 002A
    MC146818AP – MOTOROLA
    MC146818 AP
    C026306 – 001

    C301180-002
    C301179-002
    C398080-001
    CS4216 – FALCON CODEC - £10
    L53C80JC2 – FALCON SCSI - £10
    C301223 – TT DMAC
    C301225-001 – MCU
    C389082-001
    C398082-001A
    L53C80JC – TT SCSI IC - £10
    C300868-001


    UM6507 / C010745-12
    C398721-001 – PAL TT - £5
    C398722-001 – PAL TT - £5

    CRYSTALS:

    C012285
    C070750
    8.010613M
    32.04245 MHz    C100281 (Mega Oscillator) 


    Portfolio parts
     
    Power I/P Socket 
    Battery Spring
    C103398 Battery Cover 
    Feet(small)
    Feet (large)

    Flashcard - BT 1913 Bernd Thomas - where to find games for testing?

    in Atari Lynx

    Posted

    You are in bin/lyx mode.

    You have to switch to lnx mode before trying to write a .lnx rom.

    To do so, after display of menu via Anykey, press l on your computer, and press Anykey again in order to chaeck that ther is [X] before lnx and not [l]

    Then you can write a rom to the flashcard :

    press w

    Wait for message then Send file (one that Sage linked should be fine)

     

    I tried this but can't get the I to change to X

     

    Also is that an I or l ?!!? an i OR L

     

    I tried both but couldn't get it to change to an X before.lnx

    Flashcard - BT 1913 Bernd Thomas - where to find games for testing?

    in Atari Lynx

    Posted

    Go here :

    https://atarigamer.com/lynx/game/ABugsLynxeJagFest2018Edition/504071612

    Download ROM, you should get a .lnx file

    Make sure your flashcard is setup for LNX (not LYX) and 256kb (not 128 or 512) and that baudrate is accurate (if you see the menu option when pressing Anykey, it is OK)

    Write game to the flashcard, it should work

     

    You can also test games here :https://atarigamer.com/explore/rom-only-homebrews

    or both aYstuna in my sig

     

     

    Basically, you have to verify the file type is accurate with flashcard setup (LNX/LYX or O), the size is correct

     

    OK thanks

     

    I'll give this a go

     

    But could you give me a step by step instruction on how to load this and set this flashcard up with this correct settings

     

    I am using Hterm as recommended in the manual

     

    When i press the green anykey button i get the info on screen, i need help from here on

     

    I have spent too much time on this so far and got nowehere

    7800 blue power connection plug - where to find?

    in Wanted

    Posted · Edited by Chandler

    does anyone know where i can find the blue power plug that fits into the back of the 7800?

    it looks like a totally unique item that Atari used

    there must be some somewhere?

    anything considered icon_smile.gif

     

    note: it's just the blue 2 pin female plug that goes into the back of the 7800 I'm looking for

     

    not the whole PSU

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