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

« previous next »
Pages: [1]
  
Go Down

Author Topic: CRT with split on bottom of screen  (Read 3484 times)

0 Members and 1 Guest are viewing this topic.

Rlynxwiler

  • Trade Count: (0)
  • Jr. Member
  • **
  • Offline Offline
  • Posts: 5
  • Last login:September 30, 2023, 11:09:58 pm
  • I want to build my own arcade controls!
CRT with split on bottom of screen
« on: September 19, 2023, 05:47:18 pm »
Just purchased a Lethal Enforcers game and noticed there is a strip at the bottom of the monitor picture that is a little off center. (see attached picture) It's a CRT monitor.  Any ideas on what the cause is and how to fix?  Thanks!
Logged

buttersoft

  • Trade Count: (+1)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 1842
  • Last login:Yesterday at 06:30:39 pm
  • Is running at 15kHz
Re: CRT with split on bottom of screen
« Reply #1 on: September 20, 2023, 06:25:54 pm »
Weird and possibly pointless question and i have no real idea what might be causing this, but on other screens that aren't showing the bullets, is the tear in exactly the same place?
Logged

lilshawn

  • Trade Count: (+3)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 7515
  • Last login:April 08, 2026, 10:09:11 pm
  • I break stuff...then fix it...sometimes
Re: CRT with split on bottom of screen
« Reply #2 on: September 20, 2023, 07:29:30 pm »
gonna have to give us some more info than that...

what monitor is in there?
is it a legit lethal enforcers game board? or some china copy of one?
has the monitor been serviced that you can tell?
does the games monitor test mode in the service menu do the same thing or is it just the gameplay that does it?
Logged

grantspain

  • I personally prefer "bog trotter"
  • Trade Count: (+1)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 6177
  • Last login:August 16, 2025, 04:42:10 am
Re: CRT with split on bottom of screen
« Reply #3 on: September 22, 2023, 12:53:37 am »
looks like the horizontal hold need a tweek
Logged

lilshawn

  • Trade Count: (+3)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 7515
  • Last login:April 08, 2026, 10:09:11 pm
  • I break stuff...then fix it...sometimes
Re: CRT with split on bottom of screen
« Reply #4 on: September 22, 2023, 10:13:10 am »
was thinking maybe a k7000 that needs a 50/60 pot tweak or a change of c18/20/21 maybe a going bad LM7823...

it's lethal enforcers... so it's 15k for sure.

but without knowing what monitor it is...  :dunno could be 100 things
Logged

pbj

  • Trade Count: (+4)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 11100
  • Last login:Today at 03:30:02 am
  • Obey.
    • The Chris Burke Band
Re: CRT with split on bottom of screen
« Reply #5 on: September 22, 2023, 11:32:54 am »


Make sure you properly discharge that monitor before you work on it or it will murder your family.

Logged

Zebidee

  • Trade Count: (+9)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 3507
  • Last login:Yesterday at 06:22:53 pm
Re: CRT with split on bottom of screen
« Reply #6 on: September 22, 2023, 03:38:04 pm »
Quote from: pbj on September 22, 2023, 11:32:54 am


Make sure you properly discharge that monitor before you work on it or it will murder your family.

That capkit meme is even more hilarious because it pictures resistors.

If you don't know the difference then just send it to a a qualified tech.
Logged
Check out my completed projects!

Pages: [1]
  
Go Up
« previous next »