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**Reel Slots** Gaming Machines => IGT S2000 and Vision Games => Topic started by: puckhead on December 01, 2020, 03:39:10 PM

Title: 504 board- clear chip 224- 2nd amber never gets past flashing
Post by: puckhead on December 01, 2020, 03:39:10 PM

trying to clear and key an s2000 with a 504 board. new battery, varta removed, zero battery damage.  with a 224 chip, the first amber comes on, then after a few secs, the 2nd amber flashes, never lights solid. never saw this before. before all this, it comes up with an eprom error. turn the key, follow the prompts, it does it thing and eprom error was back. door optic bypassed thru cherry switch. it did worked for a little while till the error than i cant know get rid of.


thanks

Title: Re: 504 board- clear chip 224- 2nd amber never gets past flashing
Post by: RB on December 01, 2020, 03:50:28 PM

Sounds like eeprom error not eprom. Try replacing the 24c16 chip on the mother board.

Title: Re: 504 board- clear chip 224- 2nd amber never gets past flashing
Post by: puckhead on December 01, 2020, 03:54:46 PM

i was thinking the same thing, but i just found a bent pin on the mpu. i'll check and let you know


thanks

Title: Re: 504 board- clear chip 224- 2nd amber never gets past flashing
Post by: Retro tech repair on December 01, 2020, 04:15:43 PM

Depending on what amber led is blinking either your srams or the eeprom on the motherboard is bad.

Title: Re: 504 board- clear chip 224- 2nd amber never gets past flashing
Post by: puckhead on December 01, 2020, 04:25:40 PM

second amber

Title: Re: 504 board- clear chip 224- 2nd amber never gets past flashing
Post by: Stayouttadabunker on December 01, 2020, 06:05:17 PM

Think there was a page on the MPU LED codes deciphered in the uploads....not sure?