MXR Dynacomp Compressor problem

[bent]

Hi, i build it, and when i fisrt play, the sound was like my speaker amp was broke (the smallest cord sound ok, but the biggest cord sound horrible, cracking), i unplug and look at it, and when i plug it back....no sound-nothing-nada....and i touch nothing....

here some reading:
from general guitar schematic
Q1: 2N5088
E:5.74
B:3.45
C:9.08

Q2: 2N5088
E:0
B:0
C:7.78

Q3: 2N5088
E:0
B:0
C:7.76

Q4: 2N5088
E:8.29
B:7.78
C:9.07

Q5: 2N5088
E:4.57
B:5.22
C:4.64

D1: 1N914
BLACK STRIPE SIDE:9.08
OTHER: 0

D2: 1N914
BLACK STRIPE SIDE:0
OTHER: 0

D3:1N914
BLACK STRIPE SIDE: 9.06
OTHER: 0

IC: CA3080E
PIN1: N/A
PIN2: 3.93
PIN3: 3.87
PIN4: GROUND
PIN5: 0.69
PIN6: 5.20
PIN7: 9.06
PIN8: N/A

ANY HELP WILL BE APPRECIATE....

THANK's

BENT

[brett]

Hi
Q1, Q2 and Q3 have problems.  The base of all NPN, negative gorund transistors should be 0.7 volts higher than the emitter (and that's a mighty hand rule).
Check the resistors attached from the base to ground, and base to V+.
post your results

[bent]

thank'S brett,
i'll will check that and give you some news...

thanks

bent

[bent]

i finally found that R13 is 56K, and futurlec send me 5k6 instead of 56k, and it was write 56K on the bag.....i found it with my meter....( i went trought all my stock resistor (from 10ohm to 4M3) to double check the value just in case)

switch it with a 56k and the problem is solved....yeah!!!!!!!

thank you very mutch brett....

bent