Analogue Pocket

The test service button is sent to the FPGA by pressing two buttons, see the image below. This is used in cores such as JTCPS1, JTCPS1.5, JTCPS2 and JTPANG...

MiSTer

Most MAME keys are available at the same location with the same behaviour:

• F2 for test service button
• 9 for service (coin) button