Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: russell_janab on December 30, 2014, 10:50:06 AM

Title: Crack Help [solved]
Post by: russell_janab on December 30, 2014, 10:50:06 AM

Terminal    Resistance in Ohms
13   -704K
B3   3.6K
B6   3.6k
   
Center pin red 104.1K Ohms   
Center pin black 97.1K Ohms   
   
Terminal    Voltage in Volts
1   -0.93
2   -0.94
3   0
4   -0.24
5   -0.93
6   0
7   0
8   0
9   2 mV
10   0
11   0
12   0
13   -0.95
14   0
15   241
20   0
21   240
A1   -0.93
A2   0
A4   0
A5   0
A6   -0.93
A7   0
A9   0

The 2 red LEDs are not lighting up.

Thanks in advance,

Sam Janab

Title: Crack Help
Post by: Paul Birkeland on December 30, 2014, 11:05:58 AM

Hello Russell,

If you let us know which kit you have, I can split this post off into its own topic on the board for that kit.

-PB

Title: Re: Crack Help
Post by: russell_janab on December 30, 2014, 11:12:13 AM

Hey PB,
I have the Crack Bottlhead OTL stock kit (Speed ball on the way :) )

Thanks in advance,

Sam Janab

Title: Re: Crack Help
Post by: Paul Birkeland on December 30, 2014, 11:19:57 AM

Hello Sam,

Did you install the fuse in your Crack?

-PB

Title: Re: Crack Help
Post by: russell_janab on December 30, 2014, 11:30:03 AM

Hey PB,
Yes I did

Title: Re: Crack Help
Post by: Paul Birkeland on December 30, 2014, 11:35:55 AM

There is a 270 Ohm 5W resistor between T13 and T15, it is likely disconnected on one end, as there is voltage on one side of it, but not the other.

If this resistor is well connected, and your voltages are correct, that resistor is going to get very hot during testing, and that piece of information will be useful.

-PB

Title: Re: Crack Help
Post by: russell_janab on December 30, 2014, 11:38:48 AM

Hey PB,
Yeah I measured that and for T13 I got - 704KOhms and 0 Ohms for T14

Title: Re: Crack Help
Post by: Paul Birkeland on December 30, 2014, 11:45:33 AM

I'm speaking of voltages.  You have 241V on one side of that resistor and 0 on the other.  Either one end is disconnected, one end is wired to ground, or there was a measurement error.

-PB

Title: Re: Crack Help
Post by: russell_janab on December 30, 2014, 12:37:42 PM

Hey PB,
you were right T13L was not soldered, tricky place.
I soldered it and now I am getting a resistance of infinity. Do you think the resistor is damaged or not soldered properly?

Title: Re: Crack Help
Post by: Paul Birkeland on December 30, 2014, 12:39:06 PM

Since you have already done the voltage checks, you should repeat them again.

-PB

Title: Re: Crack Help
Post by: russell_janab on December 30, 2014, 12:56:01 PM

hey PB,
Here are the new readings, everything is consistent with the manual except resistance at T13
i am getting infinity where as the manual indicates 270K Ohms


Terminal    Resistance in Ohms
1   *
2   *
3   0
4   *
5   *
6   2.4K
7   2.9K
8   0
9   2.9K
10   2.4K
12   0
13   infinity
14   0
20   0
22   0
B3   3.6K
B6   3.6k
   
Center pin red 104.1K Ohms   
Center pin black 97.1K Ohms   
   
Terminal    Voltage in Volts
1   82
2   172.5
3   0
4   172.5
5   80
6   0
7   105
8   0
9   104
10   0
11   0
12   0
13   172.5
14   0
15   194
20   0
21   215
A1   79
A2   0
A4   0
A5   0
A6   81
A7   0
A9   0
   
b1   81
b2   172
b3   104
b4   79
b5   172
b6   104
b7   0
b8   0



What Should I do?

Title: Re: Crack Help
Post by: russell_janab on December 30, 2014, 01:07:25 PM

nevermind PB,
It works beautifully I am speechless at its performance with HD 650's :)

Cheers!

Title: Re: Crack Help
Post by: Paul Birkeland on December 30, 2014, 01:08:14 PM

Enjoy those tunes!

-PB