Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

  

Author Topic: solved  (Read 1734 times)

0 Members and 1 Guest are viewing this topic.

northerngames

  • Trade Count: (+18)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 2927
  • Last login:April 09, 2016, 04:18:51 pm
solved
« on: September 02, 2007, 06:49:25 pm »
solved




 
« Last Edit: September 26, 2007, 12:28:02 am by northerngames »

HaRuMaN

  • Supreme Solder King
  • Global Moderator
  • Trade Count: (+45)
  • Full Member
  • *****
  • Offline Offline
  • Posts: 10328
  • Last login:July 23, 2025, 07:04:20 pm
  • boom
    • Arcade Madness
Re: dreamcast to dark without amp & to bright with amp on 15k arcade monitor
« Reply #1 on: September 05, 2007, 09:38:41 am »
I have the same setup as you except I have a WG 25" monitor...  and I have the same problem.  Whites are white, but kinda dim.  I haven't been able to figure out why.

AndyWarne

  • Trade Count: (+18)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 1938
  • Last login:April 11, 2021, 03:37:09 am
    • Ultimarc
Re: dreamcast to dark without amp & to bright with amp on 15k arcade monitor
« Reply #2 on: September 05, 2007, 10:51:28 am »
The Dreamcast adaptors wich we sell have load resistors on the inputs whereas the standard video amp does not. This is likely to be the problem. You could try adding three 220 ohm resistors. One from each color line to ground, on the input of the amp.

Andy

northerngames

  • Trade Count: (+18)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 2927
  • Last login:April 09, 2016, 04:18:51 pm
Re: dreamcast to dark without amp & to bright with amp on 15k arcade monitor
« Reply #3 on: September 05, 2007, 12:30:10 pm »
so I take one leg of the 220ohm resistor and put it on the red signal and then connect the other leg of the resistor to a ground.

and same with the green and blue?

or does the resistor go inline only one on each of the R,G,B wire with no gorund becuase there inline?

and these resistor's go to the input RGB signals of the amp before they actually make it to the amp and do not go in after the amp to the monitor correct?

HaRuMaN

  • Supreme Solder King
  • Global Moderator
  • Trade Count: (+45)
  • Full Member
  • *****
  • Offline Offline
  • Posts: 10328
  • Last login:July 23, 2025, 07:04:20 pm
  • boom
    • Arcade Madness
Re: dreamcast to dark without amp & to bright with amp on 15k arcade monitor
« Reply #4 on: September 05, 2007, 02:24:30 pm »
This is how I read it:


HaRuMaN

  • Supreme Solder King
  • Global Moderator
  • Trade Count: (+45)
  • Full Member
  • *****
  • Offline Offline
  • Posts: 10328
  • Last login:July 23, 2025, 07:04:20 pm
  • boom
    • Arcade Madness
Re: dreamcast to dark without amp & to bright with amp on 15k arcade monitor
« Reply #5 on: September 05, 2007, 02:25:14 pm »
Could be wrong, tho  ???

AndyWarne

  • Trade Count: (+18)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 1938
  • Last login:April 11, 2021, 03:37:09 am
    • Ultimarc
Re: dreamcast to dark without amp & to bright with amp on 15k arcade monitor
« Reply #6 on: September 05, 2007, 05:01:14 pm »
Thats right.
Andy