CGA to VGA Video Converter GBS-8220 PCB Basic Setup

Included with the CGA/EGA/YUV to VGA HD-Converter PCB (GBS-8220) will be:

 

STEP 1: Connect the VGA output monitor to P3 (VGA OUT) of the GBS-8220 Converter PCB. If connecting a second VGA monitor, connect the second monitor to P4 of the GBS-8220 converter PCB.

 

STEP 2: Connect the incoming CGA, EGA, VGA, or component video source to the GBS-8220 converter PCB.

 

Most new JAMMA harnesses include the special 5-pin white RGB connector. Below is a picture of this common RGB video connector found on newer JAMMA harnesses. If you have this type RGB connector then simply plug this connector directly into P3 of the GBS-8220 converter PCB.

<-- 5-Pin RGB Video Connector Sample

 

 

If you do not have the simple RGB connector shown above, the GBS-8220 converter PCB includes a RGB cable which can be used to adapter your CGA or EGA video source to the GBS-8220 input. Since the output of the game or device you want to converter can vary you will need to figure out what the RGB output pinout is. Once the video wires from the game/device you intend to converter are known, connect/splice to the included 8-pin (6 wires) RGB cable.

 

STEP 3: Connect the GBS-8220 PCB to your +5VDC Power Source by connecting the RED wire of the power cable to the +5VDC source and the BLACK wire to the DC GROUND source. Then connect the 2-pin connector of the power cable to the P9 on the GBS-8220 converter PCB.

 

 

When powering up the GBS-8220 converter PCB, after about 5 seconds try pressing the 'AUTO' button on the converter PCB. This should self-adjust and lock-in the picture on your VGA output monitor.

 

If no good then remove the P11 wire harness from the converter P11 connector. Then move the GRAY WIRE over one position on the connector (so it is next to the YELLOW Wire). Then connect back into the converter and power up then try the AUTO button again.