Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: John EH on December 14, 2016, 12:48:01 PM

Title: Cracked my Crack - Question.
Post by: John EH on December 14, 2016, 12:48:01 PM

I mounted a Raspberry Pi and HiFiBerry DAC under the hood years ago in my Crack, all was well.  I upgraded to the DAC + Pro they offer and needed to put right angle connectors on the RCA's under the hood.

Well, I slipped and I whacked a big heat sink  on the Speedball and then powered up and noticed the two LED's in front of the heat sink weren't powering on.  Disassembled and seems I physically broke the TIP-50.  The metal separated from the plastic.

Is this a good replacement part?  (already ordered some)

https://www.digikey.com/product-detail/en/on-semiconductor/TIP50G/TIP50GOS-ND/920355

Stupid.  But my soldering skills are still awesome.  Removed the TIP-50 with no problems on the board.  Just need to slap a new one in I think.

Whacking that TIP-50 and breaking it would make the LED's not come on, right?

Title: Re: Cracked my Crack - Question.
Post by: Paul Birkeland on December 14, 2016, 02:33:24 PM

That TIP50G should work OK.  With a broken transistor, it's difficult to say what else in the circuit could be damaged without replacing the transistor first.

Title: Re: Cracked my Crack - Question.
Post by: Doc B. on December 14, 2016, 04:48:04 PM

If the LEDs are out the 2N2222A could be shorted too. Might be worth checking it.

Title: Re: Cracked my Crack - Question.
Post by: John EH on December 19, 2016, 10:56:21 AM

Got it.  It was just the TIP-50 as I suspected.  Got some from Digi-Key and every sweet little LED lit up just fine.  Sounds great.  I have 2 Cracks at home and both are amazing.

Title: Re: Cracked my Crack - Question.
Post by: John EH on December 19, 2016, 11:18:00 AM

Just for fun here's the old girl.