[Solved!] WTB TurboGrafx-CD AC Adapter

[ddoubledee]

Trying to get a second system going... Looking for the TurboGrafx-CD AC Adapter. Anyone have one for sale?

[MNKyDeth]

Well, you could always look for alternate adapters. I think the voltage and amp ratings etc are listed on the units, no?

Just match them up and you should be ok that way you won't have to wait around looking for one. Not sure how easy an adapter is to come by especially an original one.

[ddoubledee]

Yeah, I might have to come up with something else... They used to be super common when Turbo Zone Direct was around... *sigh*  Wish I had the foresight to stock up on stuff back then. *sadface*

Or, perhaps... I have a dead TG-CD AC adapter-- outputs no voltage... maybe it could be fixed...

[thesteve]

it likely could be fixed
if its like a duo supply it would have a fuse in it

[ddoubledee]

I'll crack it open and take a look.

[ddoubledee]

Hmmm... Seems like this one is really broken (Lol). It's not the fuse at the endstage. There is no voltage coming out of the transformer coil...

[thesteve]

2 points
the coil will be AC out so it wont show on a meter set to DC
if the output stage is shorted it will be 0 and get hot

[ddoubledee]

I did measure the output of the coil in AC... Nada. Also, it seems the primary coil is still intact... I was expecting there to be a burnt out thermal fuse on the primary side, but I guess not... I have continuity through it with about 30 ohms of resistance. However, I have an open in the secondary side-- No continuity through the secondary coil...

[thesteve]

look for broken wire from the coil to the terminals
also check the diodes for shorts
i see you didnt need me to point out those things, but someone else following this might be helped by them

[ddoubledee]

Success!! We have a working AC Adapter! What do ya know... Breathing solder fumes really does give you super powers. Thank you for helping, thesteve! I'm well on my way to getting another system going! Wheeee!

It was just a couple of solder joints that had let go... Presumably from a shock (drop)... One where the secondary coil joins the PCB, and another on one leg of the large capacitor.

I guess I have just one other question... I'd like to post an introduction somewhere, and some pictures of my games. Should I bump up that pictures thread, maybe?

[thesteve]

there is an introduction thread i think