I just got a Black Knight machine, and it has the high score at 2,500,000, which we're getting NOWHERE near. I found the procedure to reset it in the manual, but it's not working for me. My buddy who gave it to me (and had it for years before hooking me up) said he remembered there was some subtlety that was easy to miss, but couldn't recall what it was. Anybody know?

Here's what the book said:

GAME ADJUSTMENT PROCEDURE
(Functions 13-41)
Coin door must be open to change settings.
Set AUTO-UP/ MANUAL-DOWN switch to AUTO-UP and depress ADVANCE pushbutton. Test 04 is indicated in the Credits display, Function 00 in Match display, and game identification in Player 1 display.
To raise Function number in Match display, operate ADVANCE pushbutton with switch set to AUTO-UP. To lower Function number operate ADVANCE with it set to MANUAL-DOWN.
With desired Function indicated in Match display, raise value in player 1 display by operating credit button with switch set to AUTO-UP; lower value by operating credit button with it set to MANUAL DOWN. Value left in Player 1 display is new setting. For values see Table 2 and (for pricing) Table 3.
Repeat steps 2 and 3 until all required adjustments have been made.
Operate ADVANCE until Function 50 is indicated in Match display. From Function 50 you can return to game over or restore factory settings. Perform step 6 or 7 as desired.
To return to game over, depress ADVANCE with switch set to AUTO-UP.
To restore factory settings and zero audit totals:
a. Operate Credit button with switch set to AUTO-UP until 45 is indicated in Player 1 Display.
b. Depress ADVANCE. The game returns to Test 04, Function 00.
c. Set switch to MANUAL-DOWN and depress ADVANCE to indicate Function 50.
d. Set Switch to AUTO-UP and depress ADVANCE.
RESETTING HIGH SCORE TO DATE
Using game adjustment procedure, set Function 13 to the desired reset value.
Depress HIGH SCORE RESET pushbutton.

So basically I hit the 'auto/up' , and hit advance, and kept hitting it till it showed 13 in the match display. I then used the credit button to change the score to 100,000, then advanced to 50 and exited.

When I was done, high score still showed 2,500,000. But when I went back in to try changing the setting again, I got to 13, and it was already set to 100,000, so I have no idea what I'm doing wrong.

Anybody got one of these who can set me straight?

Thanks for any suggestions or assistance!

THAT is what I was missing, I was setting it then hitting the reset, without getting back to 'game over'.

Thanks so much for the help!