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project:atari_asteroids_restoration [2013/02/27 06:50] – [Physical] smarkproject:atari_asteroids_restoration [2013/02/27 10:54] – [Resources] smark
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 ==== Logical ==== ==== Logical ====
 The game plays correctly but has no video. When power is supplied the game humms to life and the P1/P2 lights begin blinking as normal. Still no video. The game board's LED lights and the Spot Killer light on the Electrohome does not light (normal). You can start a game by pressing P1 or P2 and the game sounds work completely and the controls also work, just no video. The game plays correctly but has no video. When power is supplied the game humms to life and the P1/P2 lights begin blinking as normal. Still no video. The game board's LED lights and the Spot Killer light on the Electrohome does not light (normal). You can start a game by pressing P1 or P2 and the game sounds work completely and the controls also work, just no video.
 +
 +====== Progress ======
 +
 +==== Prior to Wiki Entry ====
 +
 +Moved machine into apartment, cleaned the cabinet. Discovered I left the keys to the cab in storage in another city. Decided to just drill out the coin door lock. Found the key to the back panel inside the cabinet.
 +
 +Decided to open the cabinet and see if there was any obvious damage. No obvious damage was found so I plugged the machine in. I closed the coin door and used a clamp to depress the rear door safety switch. The machine hummed to life and I was able to play without video.
 +
 +Did some research online and some websites discussed replacing VR2 on the PC board. I decided against this as the monitor did not have a glow look from the tube end. After much research and some posts online it was discovered that the likely culprit was not the game board but rather the monitor. In this case the monitor is an Electrohome G05-801. A suggestion online that has been discovered to fix several problems is to reflow the Electrohome boards.
 +
 +====== Resources ======
 +[[http://forums.arcade-museum.com/showthread.php?t=266926|My Post on Arcade-Museum]]
 +[[http://www.classicgaming.cc/classics/asteroids/tech/asteroids_manual.pdf|Asteroids Operations Manual]]
 +[[http://www.ionpool.net/arcade/asteroidtech/asteroidsrepair.html|Atari Asteroids Repair Encyclopedia - Ionpool.net]]
 +[[http://www.crazykong.com/tech/bw_vector_monitor_faq.pdf|Black & White Vector Monitor Guide (Electrohome G05)]]
project/atari_asteroids_restoration.txt · Last modified: 2013/03/09 20:50 by smark
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