Results 1 to 3 of 3

Thread: Master System Displays in Black and White

  1. #1
    Lvl 99 Custom rank graphic
    Daria's Avatar
    Join Date
    Mar 2004
    Posts
    5,214
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    3
    Thanked in
    3 Posts
    Xbox LIVE
    Nymphomatic

    Default Master System Displays in Black and White

    So I recently hooked up a bunch of systems in my bedroom. I had wanted the master system to be included but - like the topic says - it's only displaying a grayscale image. I tried AV cables directly to the tv, and even an RF adapter. So it's not the input nor is it the cable. Is this a known problem for the system? Can it be fixed?

  2. #2
    Ryu Hayabusa (Level 16) Raedon's Avatar
    Join Date
    Jul 2002
    Location
    Texas Land
    Posts
    8,054
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Run the AV threw a VCR Daria and see it that works. It was the fix back in 200X for lost gain.
    Fear your thoughts because they become your words
    Fear your words because they become your actions
    Fear your actions because they become your habits
    Fear your habits because they become your character
    Fear your character because it becomes your destiny

    Therefore: Thinking and nurturing positive thoughts, at any point in your life, can change your destiny.

  3. #3
    Strawberry (Level 2) bust3dstr8's Avatar
    Join Date
    Mar 2007
    Location
    Boston,MA USA
    Posts
    442
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    There's a problem with your colorburst clock signal. It could be inside the encoder itself or somewhere in the clock division circuit, between the main oscillator and the encoder. It might also be one of the control lines for NTSC/PAL.

    This page has a lot of great info on the SMS with schematics and chip pinouts of the encoders used.
    http://console5.com/wiki/Sega_Master_System

    Its a fairly easy fix if you have access to a frequency counter or scope.
    I would start by checking the Xtal input pin on the encoder for the 3.579Mhz clock signal.
    Clowns Suck

    Clowns Suck

Similar Threads

  1. Atari 7800 only displays games in Black and White
    By rou021 in forum Technical and Restoration Society
    Replies: 10
    Last Post: 03-23-2010, 05:28 AM
  2. Dreamcast S-Video Displays In Black And White
    By wingzrow in forum Technical and Restoration Society
    Replies: 8
    Last Post: 10-09-2008, 04:28 AM
  3. SNES displays only black and white - no color ??!?
    By geneshifter in forum Technical and Restoration Society
    Replies: 7
    Last Post: 07-14-2006, 10:15 PM
  4. white genesis and white master system
    By Arthur-Otaku in forum Buying and Selling
    Replies: 9
    Last Post: 07-28-2005, 05:47 PM
  5. NEW/SEALED White Master System console 74 games built-in
    By edsongodoy in forum Buying and Selling
    Replies: 2
    Last Post: 02-05-2003, 03:28 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •