Atari 2600

PADDLE CONTROL LINES TEST
- -
a
Purpose: To test the proper operation of the Paddle Control Lines by viewing
the analog waveforms at the analog-to-digital conversion inputs of the TIA
chip.
Format:
Pins
37, 38, 39, and 40 of the TIA chip are checked with the
oscilloscope with the
VCS unit in Diagnostic Matrix mode and with the
shorting plugs
in place. This test is required only if there is a problem with
the
hand controller lines. The procedure for this test is detailed in Section 4.
2600/2600A Domestic VCS