IGT Game King & I-Game Boards.. Power Supplies.. Ballasts,etc (By Belbenchtech)

[SAT (aka GANDHI)]

IGT Game King/I-Game MPU Boards;

Problem; No characters.
Solution; Repl. RAM (U15).

Problem; Game won't come up.
Solution; NPF-CND-tests good.

Problem; Coin-in jam, meter disconnect.
Solution; Streightened pin on connector 1.

Problem; Touch screen error.
Solution; Repl. U15 & U38 (RAMs).

Problem; Shorting out the game.
Solution; Repl. piggy back board.

Problem; Touch screen communications error.
Solution; Cleared memory & tested.

Problem; Game won't come up.
Solution; Repl. U16 (i960).

Problem; Constant E-Square & processor errors.
Solution; Cleared memory & tested.

Problem; ? (N.T.).
Solution; Cleared memory & tested.

Problem; Constant RAM error
Solution; Cleared memory & tested.

Problem; Coin-in jam +...
Solution; Repl. U74, resoldered U1 (scrambled screen), & tested.



IGT Power Supplies;

Problem; Not producing +13V & +24V.
Solution; Repl. ZD6, IC4, & SCR1.

Problem; Not getting Voltages.
Solution; Repl. SCR1 & electrolytics.

Problem; No Volts.
Solution; Repl. SCR 1.

Problem; No 13 or 24 volts.
Solution; Repl. SCR1 & IC4 (sub. 1N914 for ZD2).

Problem; Only 4V on 13V output.
Solution; Repl. IC4, +/- caps, & resoldered main connector.

Problem; Display goes bright then out.
Solution; Repl. Q4 & Q5.

Problem; Top bot P/S bad.
Solution; Repl. C7.

Problem; Shorts out game w/printer plugged in.
Solution; Repl. C24, & C29.

Problem; Probably bad fuse;
Solution; Repl. D9, D14, D16, & electrolytics.

Problem; No power.
Solution; Repl. bridge rectifier .



IGT Mother Boards;

Problem; MPU errors.
Solution; Repl. U2.

Problem; No display.
Solution; Repl. U2.

Problem; Thread broken (display problems).
Solution; Repaired trace.

Problem; Constant System Error.
Solution; Repl. U2 (E-Square).

Problem; Blown Trace "no display".
Solution: Repaired trace.



IGT Ballasts;

Problem; Won't lite, light.
Solution; Installed Happ's Upgrade (this worked on all IGT Ballasts sent to shop for repair...Happ's P/N 70-1337-00 )



IGT Touch Screen Control Boards;

Problem; Can't calibrate (older bds.).
Solution; Repl. C47 through C52 (these will normally repair these boards).

Problem; Can't calibrate. (newer bds.).
Solution; Repl. U10 (ILQ2 IC, this normally repairs these bds.).

[SAT (aka GANDHI)]

A few more current IGT video board repairs...

Game King MPU;

Problem; No characters (green screen.
Solution; Repl. RAM (U15).

Problem; Bad.
Solution; Repl. U16.

Problem; Constant E-Square & processor errors.
Solution; Cleared memory & tested.

Problem; Keeps freezing up during cashout.
Solution; None-NPF-cleared memory & tests good.

Problem; ? No Tag (N.T.).
Solution; Repl. U16 & tested.

Problem; Main battery low error.
Solution; repl. BT1 & tested.

Problem; Many EEPROM, System, Processor, etc...errors
Solution; Most of these type errors can be cleared with the correct Clear Chip, available through IGT.