(Topic ID: 190521)

DE:SW Lamp Help

By Zarklin

2 years ago

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20170601_212253 (resized).jpg

#1 2 years ago

Having a ghosting problems. These are NOT leds. Forgive me if this is an obvious fix I'm new to SS machines. I don't know if having a large number of burned out and missing lamps would cause this. Let me know if I should start at the transistors on the board or sockets and diodes. I did visual inspections of diodes under the PF and don't see any broken or touching other leads. Going to try and MM as many as I can this weekend.

Force lamp (47 Power scoop left) Ghosts on every row test lit correctly on row 7, does not ghost on any column test. Lit correctly on column 6. On individual lamp test it ghost with everything besides lamps in row 7 and columns 2 and 6.

Shooter lane (Launch 31) ghost on row 1,5,6 lit correct on row 7. Does not ghost on any column test, lit correct on column 4. Individual it ghost with every lamp in column 4.

Only did individual tests with the following

39 drop center ghosts with every lamp in it's column (5)
63 right bump ghost with every lamp in it's column (8)
23 DS tie ghosts with every lamp in it's column besides 17 (not used) and 18
48 scoop right ghosts with 56.

Visual aid of my trouble shooting

20170601_212253 (resized).jpg

Thanks in advance.

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