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» Royal flush deluxe/ Lost 100 digital on player 1 & 3

(Topic ID: 130200)

Royal flush deluxe/ Lost 100 digital on player 1 & 3

By Raff

8 years ago

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5 posts
2 Pinsiders participating
Latest reply 8 years ago by Raff
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Royal Flush Deluxe Gottlieb, 1983

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#1 8 years ago

RAS

Raff

Pinside member

North Adelaide

9y 66,550 1,496 19 7

Turned on machine this afternoon and lost the 100 digital number on score 1& 3 took the player 2 display out and swapped it with number 1 still no good photo.JPG 350.JPG
if some one can please point me in the right direction would be grateful

#2 8 years ago

MAR

MarAlb

Pinside member

Zeist

9y 53,650 814 19

This can be caused by a bad contact in a display connector at the CPU board or a defective 7404 chip at the cpu board. Clean J2 and J3 edge connectors and if this doesn't help replace Z17 (7404) at the CPU board. Z25 (74154) can be the troublemaker also, Z17 is more likely however. Never pull these connectors while the game is powered on! You will miss more digits and/or segments afterwards.

Marco

#3 8 years ago

RAS

Raff

Pinside member

North Adelaide

9y 66,550 1,496 19 7

i moved j3 around and the digital came back up ,whats the best way to clean the connectors

#4 8 years ago

MAR

MarAlb

Pinside member

Zeist

9y 53,650 814 19

I use a fibreglass pencill myself for this kind of jobs. Also, rubbing the pads with a pencil gum eraser is very effective. Clean the pads with alcohol afterwards.

Marco

#5 8 years ago

RAS

Raff

Pinside member

North Adelaide

9y 66,550 1,496 19 7

i will be buying a pencil gum eraser, but could the contact need changing and whats the best way of changing them

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