digitall2000
Well-known member
hello
and thanks in advance for any suggestions and advice
attached is the burn problem pics
as i remember this card still still had output (not 100% on that)
the burn is in the active balanced output section
junction Q127-128 - R185-186 - SW101 BAL/UNBAL OUTPUT
from there on to the out put connector
1. any ideas on what could cause such a burn?
2. is there a way to test the output transistors in circuit?
i have a small transistor, diode,inductor, blah . . . tester,
if i try to test the transistor as just that, all three legs, it fails
if i try to test it as a diode, just two of the legs, it tests as
different combinations of single and double diodes
that is all in circuit
not sure if this is the proper way to go about posting this
someone clue me in if it is not
thanks
lance
and thanks in advance for any suggestions and advice
attached is the burn problem pics
as i remember this card still still had output (not 100% on that)
the burn is in the active balanced output section
junction Q127-128 - R185-186 - SW101 BAL/UNBAL OUTPUT
from there on to the out put connector
1. any ideas on what could cause such a burn?
2. is there a way to test the output transistors in circuit?
i have a small transistor, diode,inductor, blah . . . tester,
if i try to test the transistor as just that, all three legs, it fails
if i try to test it as a diode, just two of the legs, it tests as
different combinations of single and double diodes
that is all in circuit
not sure if this is the proper way to go about posting this
someone clue me in if it is not
thanks
lance