Build Your Own Arcade Controls Forum

Arcade Collecting => Miscellaneous Arcade Talk => Topic started by: smartbomb2084 on August 19, 2020, 11:58:03 am

Title: DEFENDER 'reverse'
Post by: smartbomb2084 on August 19, 2020, 11:58:03 am

Does anyone have an original Red Label ROM Defender cabinet where the 'reverse' button works 100% of the time?

THANKS in advance.

Title: Re: DEFENDER 'reverse'
Post by: bobbyb13 on August 20, 2020, 03:12:18 am

Is yours flaky?

Not trying to be obnoxious (honestly) but why would it not work all the time unless the switch was failing?

Glitchiness myabe?

Title: Re: DEFENDER 'reverse'
Post by: smartbomb2084 on August 20, 2020, 09:05:05 am

REVERSE works about 98% during play and seemingly 100% of the time during Switch Test Mode.

I have changed the Interface Board Ribbon Cable and its Capacitor .  I reflowed the solder and cleaned the header pin connections and also removed and punched down the wires into the IDC Connector with the proper tool.

I have seen this issue on two original cabinets and boardsets and on a third boardset that is in a rescued black painted ROBOTRON Cabinet I was using to play DEFENDER with a STARGATE Control Panel.

I can't remember if back in 1981 that this REVERSE issue was present or not which is why I am looking for other Original Cabinet owners for input either way...

Title: Re: DEFENDER 'reverse'
Post by: smartbomb2084 on August 21, 2020, 02:12:59 pm

If anyone is curious...Here is the problem and the fix for this issue...

https://www.jbgaming.co.uk/info/defender-reverse-problem/

Title: Re: DEFENDER 'reverse'
Post by: Mike A on August 21, 2020, 02:17:48 pm

That is interesting. I will have to pay attention next time I play defender on my cab.

Title: Re: DEFENDER 'reverse'
Post by: Gilrock on August 21, 2020, 03:38:34 pm

Its coded that way on purpose just to make the game even more of a pain in the ass.

Title: Re: DEFENDER 'reverse'
Post by: Mike A on August 21, 2020, 05:38:30 pm

That sounds plausible.
Defender is an ---uvula---.