Hello everyone,
I recently built the RustBucket 2019 but unfortunately when i switch it on while te mix is at 0 i listen to the guitar tone when it is at 100% no sound comes out (at 50%, 50% of the sound comes out etc)
Everything seems to be in its right place, no solder bridges...nothing
When i connect the pcb to the power supply the regulator (7805) heats up, and the MN3007 chip heats up as well. The IC13 NKA0515 does not heat up.
i measuref all the ICs and transistors to give you the voltages, hoping that you can help me fix it:
Hello everyone,
I recently built the RustBucket 2019 but unfortunately when i switch it on while te mix is at 0 i listen to the guitar tone when it is at 100% no sound comes out (at 50%, 50% of the sound comes out etc)
Everything seems to be in its right place, no solder bridges...nothing
When i connect the pcb to the power supply the regulator (7805) heats up, and the MN3007 chip heats up as well. The IC13 NKA0515 does not heat up.
I measured all the ICs and transistors to give you the voltages, hoping that you can help me fix it.
I start with the NKA0515 cause i think it is the problem... and then the rest.
But then again i don't know. So... take a look and tell me what you see
My IC13 is MEJ1D0515SC and it differs a little from the NKA0515 according to the murata specifications. can that be an issue as well?
IC13 - NKA0515
1 4.9V
2 7mV
3 x
4 -8.8V
5 8mV
6 9.2V
IC1 - 4558
1 13mV
2 20mV
3 21.3mV
4 -8.93V
5 10.4mV
6 10.8mV
7 -150mV
8 9.2V
IC2 - CA3080
1 -270mV
2 7mV
3 3mV
4 -8.8V
5 -8.2V
6 10mV
7 9.2V
8 15mV
IC3 - LM1458
1 20mV
2 5mV
3 7mV
4 -8.8V
5 -10mV
6 -16mV
7 -59mV
8 9.2V
IC4 - 4558
1 -10mV
2 13mV
3 13mV
4 -8.9V
5 -10mV
6 -11mV
7 -44mV
8 9.3V
IC5 - CD4047
1 -4.5V
2 -4.3V
3 -4.3V
4 7mV
5 7mV
6 7mV
7 -8.8V
8 -8.8V
9 -8.8V
10 -3.8V
11 -7.2V
12 -8.8V
13 -4.5V
14 7mV
IC6 - MN3007
1 6mV
2 -3.9V
3 -5.4V
4 -5.7V
5 -9V
6 -7.3V
7 -6.3V
8 -6.2V
IC7 - CD4013
1 7mV
2 9.2V
3 7mV
4 46mV
5 7mV
6 326mV
7 7mV
8 7mV
9 7mV
10 7mV
11 7mV
12 9.15V
13 7mV
14 9.16V
IC8 - CD4066
1 1.7V
2 1.7V
3 8.7V
4 7mV
5 7mV
6 325mV
7 7mV
8 7mV
9 5mV
10 7mV
11 7mV
12 9.1V
13 7mV
14 9.1V
IC9 - LM1458
1 1.5mV
2 1.5mV
3 4mV
4 -8.8V
5 4mV
6 2mV
7 56mV
8 9.18V
IC10 - LM311
1 7mV
2 2mV
3 7mV
4 7mV
5 9V
6 9V
7 46mV
8 9.1mV
IC11 - CA3080
1 4.7mV
2 8mV
3 8mV
4 -8.8V
5 -8.8V
6 7mV
7 9.26V
8 70mV
IC12 - LM741
1 -8.8V
2 4mV
3 7mV
4 -8.9V
5 -8.9V
6 8mV
7 9.3V
8 6mV
REG - LM7805
IN 9V
GND 7mV
OUT 4.99V
Q1 - 2N5087
C -8.1V
B 7mV
E 5mV
Q2 - 2N5087
C -8.6V
B -47mV
E 7mV
Q3 - 2N5088
C 8.9V
B 107mV
E 258mV
Q4 - 2N5088
C 219mV
B 0.8V
E 257mV
Q5 - 2N5087
C -8.5V
B 55mV
E 3mV
Q6 - 2N5087
C -8.5V
B -47mV
E 300mV
Q7 - 2N5088
C -8V
B -8.6V
E -8.6V
Q8 - 2N5088
C -8.6V
B 8V
E -8.6V
I recently built the RustBucket 2019 but unfortunately when i switch it on while te mix is at 0 i listen to the guitar tone when it is at 100% no sound comes out (at 50%, 50% of the sound comes out etc)
Everything seems to be in its right place, no solder bridges...nothing
When i connect the pcb to the power supply the regulator (7805) heats up, and the MN3007 chip heats up as well. The IC13 NKA0515 does not heat up.
i measuref all the ICs and transistors to give you the voltages, hoping that you can help me fix it:
Hello everyone,
I recently built the RustBucket 2019 but unfortunately when i switch it on while te mix is at 0 i listen to the guitar tone when it is at 100% no sound comes out (at 50%, 50% of the sound comes out etc)
Everything seems to be in its right place, no solder bridges...nothing
When i connect the pcb to the power supply the regulator (7805) heats up, and the MN3007 chip heats up as well. The IC13 NKA0515 does not heat up.
I measured all the ICs and transistors to give you the voltages, hoping that you can help me fix it.
I start with the NKA0515 cause i think it is the problem... and then the rest.
But then again i don't know. So... take a look and tell me what you see
My IC13 is MEJ1D0515SC and it differs a little from the NKA0515 according to the murata specifications. can that be an issue as well?
IC13 - NKA0515
1 4.9V
2 7mV
3 x
4 -8.8V
5 8mV
6 9.2V
IC1 - 4558
1 13mV
2 20mV
3 21.3mV
4 -8.93V
5 10.4mV
6 10.8mV
7 -150mV
8 9.2V
IC2 - CA3080
1 -270mV
2 7mV
3 3mV
4 -8.8V
5 -8.2V
6 10mV
7 9.2V
8 15mV
IC3 - LM1458
1 20mV
2 5mV
3 7mV
4 -8.8V
5 -10mV
6 -16mV
7 -59mV
8 9.2V
IC4 - 4558
1 -10mV
2 13mV
3 13mV
4 -8.9V
5 -10mV
6 -11mV
7 -44mV
8 9.3V
IC5 - CD4047
1 -4.5V
2 -4.3V
3 -4.3V
4 7mV
5 7mV
6 7mV
7 -8.8V
8 -8.8V
9 -8.8V
10 -3.8V
11 -7.2V
12 -8.8V
13 -4.5V
14 7mV
IC6 - MN3007
1 6mV
2 -3.9V
3 -5.4V
4 -5.7V
5 -9V
6 -7.3V
7 -6.3V
8 -6.2V
IC7 - CD4013
1 7mV
2 9.2V
3 7mV
4 46mV
5 7mV
6 326mV
7 7mV
8 7mV
9 7mV
10 7mV
11 7mV
12 9.15V
13 7mV
14 9.16V
IC8 - CD4066
1 1.7V
2 1.7V
3 8.7V
4 7mV
5 7mV
6 325mV
7 7mV
8 7mV
9 5mV
10 7mV
11 7mV
12 9.1V
13 7mV
14 9.1V
IC9 - LM1458
1 1.5mV
2 1.5mV
3 4mV
4 -8.8V
5 4mV
6 2mV
7 56mV
8 9.18V
IC10 - LM311
1 7mV
2 2mV
3 7mV
4 7mV
5 9V
6 9V
7 46mV
8 9.1mV
IC11 - CA3080
1 4.7mV
2 8mV
3 8mV
4 -8.8V
5 -8.8V
6 7mV
7 9.26V
8 70mV
IC12 - LM741
1 -8.8V
2 4mV
3 7mV
4 -8.9V
5 -8.9V
6 8mV
7 9.3V
8 6mV
REG - LM7805
IN 9V
GND 7mV
OUT 4.99V
Q1 - 2N5087
C -8.1V
B 7mV
E 5mV
Q2 - 2N5087
C -8.6V
B -47mV
E 7mV
Q3 - 2N5088
C 8.9V
B 107mV
E 258mV
Q4 - 2N5088
C 219mV
B 0.8V
E 257mV
Q5 - 2N5087
C -8.5V
B 55mV
E 3mV
Q6 - 2N5087
C -8.5V
B -47mV
E 300mV
Q7 - 2N5088
C -8V
B -8.6V
E -8.6V
Q8 - 2N5088
C -8.6V
B 8V
E -8.6V