Godzilla lamp row out

[Matt Adams]

Hi all, right full disclosure. This occurred after I removed the playfield and stripped the machine down to re-decal it. All went well apart from the row of lamps just above the flippers (2x, 3x bonus etc) don't light. It is the top row in this diagram from the manual, lamps 1-8....



So in my not very techy mind its using pin 1 on J12 so should I assume Q33 is at fault as the whole row is out?

Thanks in advance

 

[Matt Adams]

****, posted in the wrong section

 

[Solar Sailer]

Hi all, right full disclosure. This occurred after I removed the playfield and stripped the machine down to re-decal it. All went well apart from the row of lamps just above the flippers (2x, 3x bonus etc) don't light. It is the top row in this diagram from the manual, lamps 1-8....

View attachment 98590

So in my not very techy mind its using pin 1 on J12 so should I assume Q33 is at fault as the whole row is out?

Thanks in advance

I had similar in my LW3. Traced to to Qxx on the DE board.

I assume you tested the continuity all the way back to the pin?

 

[Matt Adams]

I assume you tested the continuity all the way back to the pin?

Yes, I have done the obvious low tech things

 

[Solar Sailer]

Yes, I have done the obvious low tech things

Cool. I can only do low tech. Sent my board off for repair.

Just a crackle to sort out on the speakers now.

 

[Sgt GrizZ]

Because you have had it apart my first thought is a continuity / connector issue.

If not - could the lamp drive 1 chip at U17 be at fault ?

 

[Matt Adams]

I think i will revisit the continuity, take the board out and check all the connections.

Away this week so a Christmas project

 

[Matt Adams]

Thanks to you guys I revisited the continuity and eventually traced a wire with an internal break. My sloppy detective work in the 1st instance. Thank you