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A Part of the Blue Woof Group
EE & PC Board Design Solutions for Hobbyist,Experimenters and Industry

Video To JAMMA Converter/Adapter
Converts Composite Video to R-G-B



Video to JAMMA Adapter/Converter

Installation Instructions

When Using the Video to JAMMA Adapter in a Pre-Wired JAMMA Cabinet

Step 1.

Remove the back door from the game cabinet and sit aside. Locate the game PC board. Unplug the JAMMA edge connector from the game PC board. Remove the game PC board from the cabinet.

Step 2.

Plug the Video to JAMMA Adapter into the game cabinet JAMMA harness connector. Mount the Adapter to the side wall of cabinet.

Step 3.

Skip down to Step 3 below and continue...

When Using the Video to JAMMA Adapter as a Stand Alone Converter

Step 1.

You can wire up the Adapter using a JAMMA harness OR using the 12-pin Molex connector.

Step 2.

Connect the Video to JAMMA Adapter to the monitor, speaker and power supply as shown in the diagram below. JAMMA edge connector pin numbers are listed in Table 1.


Figure 1. Hookup Connections for the Video to JAMMA Adapter using the 12-Pin Molex Connector

Table 1. JAMMA Edge Connector Pins Used by the
Video to JAMMA Adapter
GROUND1AGND
GROUND2BGND
+5V3C+5V
+5V4D+5V
NOT USED5ENOT USED
+12V6F+12V
KEY7HKEY
NOT USED8JNOT USED
NOT USED9KNOT USED
SPEAKER (+)10L SPEAKER (-)
NOT USED11MNOT USED
RED12NGREEN
BLUE13P/CSYNC
VIDEO GROUND14RNOT USED
NOT USED15SNOT USED
NOT USED16TNOT USED
NOT USED17UNOT USED
NOT USED18VNOT USED
NOT USED19WNOT USED
NOT USED20XNOT USED
NOT USED21YNOT USED
NOT USED22ZNOT USED
NOT USED23aNOT USED
NOT USED24bNOT USED
NOT USED25cNOT USED
NOT USED26dNOT USED
NOT USED27eNOT USED
NOT USED28fNOT USED

Step 3.

Using two RCA patch cords, connect one patch cord to the AUDIO IN jack on the Video to JAMMA Adapter. Connect the other patch cord to the VIDEO IN jack on the Video to JAMMA Adapter. Connect the other end of each of these cords to an audio and video source such as a VCR, DVD, satellite dish or camera.

You are now ready to view television pictures on your RGB monitor!

Making Adjustments


Figure 2. Video to JAMMA Adapter Adjustments

Adjusting Volume

Refer to Figure 2 above. To adjust the sound volume, tweak the VOLUME pot located just to the right of the AUDIO IN jack.

Adjusting Color, Tint, Contrast and Sharpness

The Color Saturation, Tint (Hue), Contrast and Sharpness can be adjusted by using the three push button switches located at the lower right side of the board.

There are four GREEN LED lamps located just above the three set switches. These LED's are labeled, "COLOR", "TINT", "CONTRAST", and "SHARP". The LED that is currently lit indicates which setting you can adjust.

To toggle between the settings, use the SELECT button. To increase the value of the selected setting, use the UP button. To decrease the value of the selected setting, use the DOWN button. Holding down the UP or DOWN button will automatically increase or decrease the setting by one "notch" about every 1/4 second. COLOR, TINT and CONTRAST have 64 steps while SHARP has 16 steps.

Other Adjustments

Although the Video to JAMMA Adapter comes completely calibrated from the factory, it may be necessary to make some additional adjustments when used with certain monitors or video sources.

Video Input Level (Bias) This adjustment is like the "volume control" for the video. Adjusting this turns up or down the amount of "video" the Adapter board gets. Adjust this control if the picture appears "white" or "washed out". The Video Bias control is located just beneath the VIDEO INPUT jack.

Horizontal Blanking Phase This adjustment alters the timing of the horizontal blanking in relation to the colorburst phase. Although the effects of this control may vary from monitor to monitor, adjusting this pot has several common results. First, if "lightly tweaked", it can be used as a horizontal centering control. If tweaked a bit further, it will interfere with the color (usually turns everything blue) and if overtweaked, it will actually reverse the horizontal sync polarity (you will loose the picture). BE CAREFUL WHEN ADJUSTING THIS POTENTIOMETER! Use this setting conservatively as a horizontal centering control or to correct horizontal "tearing" at the top of the picture.

Monitor Adjustments The picture may be further adjusted by tweaking the controls on the monitor itself. Monitors vary, so refer to your monitor's manual for adjustments. Most monitors have a BRIGHTNESS, BLACK LEVEL, HORIZ POSITION, VERTICAL SIZE, VERTICAL POSITION, HORIZONTAL HOLD, VERTICAL HOLD and other adjustments which may affect the quality of the picture.

Tips

  • Always refer to your monitor's manual for information on picture adjustments.

  • The newer the monitor, the better the picture. Old worn out monitors will not have as good of a picture or as even color as a new monitor.

  • Be sure you have the SYNC connected properly! The Video to JAMMA Adapter generates NEGATIVE COMPOSITE SYNC.

  • This adapter is NOT DESIGNED TO BE USED WITH PC OR MACINTOSH MONITORS!

  • Visit the Frequently Asked Questions website at http://www.lupinesystems.com/vid2jam for more answers!

    HELP!!

    If you need assistance with your Video to JAMMA Adapter, please visit our website at:

    http://www.lupinesystems.com/vid2jam

    or you can send an E-mail to WOOFY at:

    woofy@lupinesystems.com

    or you can call the WOLF LINE at:

    (512) 308-0918 M-F 9:00 AM to 5:00 PM CT

    Ordering Information

    You can order this item from our distributor, Twobits.com or directly from Lupine Systems.

    Quantity discounts apply. Send an E-mail to WOOFY for more information!

    Single Unit Price: $199 USD. Order Part No. #LU-804-12.

    Limited Warranty

    The Lupine Systems Video to JAMMA Adapter is warranted against defects in workmanship for a period of 60 days after initial purchase. Warranty covers parts found to be defective within warranty period and covers any and all labor to replace said parts within the warranty period.

    This warranty does NOT cover:

  • Damage to the board caused by mis-installation
  • Damage caused by connecting the board to monitors other than commercial arcade standard resolution RGB monitors
  • Damages done by modifications, alterations or adaptations
  • Malfunctions caused by attempted reverse-engineering
  • Suitability for use for any particular or peculiar application
  • Shipping charges incurred during warranty service
  • Damages done to equipment connected to this product
  • Acts of stupidity, carelessness or just plain clumsiness
  • Acts of God, Alla, Gods, Goddesses or other mythical or mystical beings
  • Sabotage or deliberate acts of vandalism

    • Contact Lupine Systems for more information on warranty coverage.

    (C)2003 Lupine Systems, Ltd. A Part of the Blue Woof Group All rights reserved.