Pincoder Diagnostics Inc. Version 2020.06.23.0506

ROM NAME
==============================================================================================

09-lamps (Williams sys7)



PURPOSE
==============================================================================================

Test lamps within the lamp matrix (01-64) using five different modes (shown on CREDITS
display):

    * 04: Blink very fast

    * 03: Blink fast

    * 02: Blink slow

    * 01: Bulb on steady

    * 00: Bulb off



PROCEDURE
==============================================================================================

This test starts out in mode 03 (shown on CREDITS display) and lamp number 00 (shown on MATCH
display, 00=ALL lamps in the matrix).

To cycle the lamp state through the 5 modes press the HIGH_SCORE_RESET button on the coin
door. Note that due to the way the ROM was written some lamps may flash brightly for a
fraction of a second as you cycle through these modes. This is normal and is due to how the
ROM was written. It does not mean there is anything wrong with your board.

To change the lamp number press the ADVANCE button. Depending on the position of the AUTO_UPDN
switch the lamp number will increase or decrease. Consult your games documentation to find the
bulb numbers in the lamp matrix.

Upon power up, check that ALL bulbs are blinking rapidly. On "weaker" driver boards you
may find that some bulbs dont actually start to blink for 5 or 10 seconds, or you might
find that they *only* blink for 5-10 seconds and then stop. In these cases, press the
HIGH_SCORE_RESET button to slow down the blink rate. You might find a change in behaviour with
those bulbs. Cycle through each of the 5 lamp states and see if you notice any patterns that
might help you narrow down to one or more transistors or logic chips on the driver board.

Your driver board should be able to consistenly blink all bulbs rapidly for as long as you
want.

If you can't find anything relevent, you can proceed to test the individual bulbs in the same
mannor. Press the ADVANCE button to start at bulb #01 in the matrix.

Test each bulb while observing the remaining bulbs in the matrix. When testing individual
bulbs, only one bulb should be lit at at time.



EXPECTED RESULTS
==============================================================================================

If you get more than one bulb lit at a time, you may have a SHORTED TRANSISTOR on the driver
board. Look at which bulbs are lighting together and compare to the LAMP MATRIX in the
documentation for your machine.  The bulbs will likely be all in the same row or column.

The same can be said for bulbs that DO NOT light. Make note of the unlit bulbs and compare
to the LAMP matrix. If they are all in a single row or column then you may have an OPEN
TRANSISTOR on the driver board.

Replace any OPEN/SHORTED TRANSISTORS and repeat the test.

    NOTE: For games with MAGNET LAMPS: This ROM does NOT test the MAGNET LAMPS as they are
    wired in as solenoids. Use the "solenoids" ROM to test them.


Pincoder Diagnostics Inc. Version 2020.06.23.0506
