dbxdx5
Super Member
I'm trying to clear up some confusion regarding the bias number to shoot for with the KR-5340 quad receiver.
First, you have the service manual:
Second, you have the Kenwood guide to biasing all of their amps and receivers:
And finally, you have Echowars' recommendation for the KR-6340, which is very similar to the KR-5340 and has the same values recommended for bias in the preceding two documents:
The original SM values of 30mA and 40mA for each channel (two pairs of outputs per channel) are a bit lower than EW's recommendation of 20mV, coming out to 14.1mV and 18.8mV instead. And the Kenwood biasing guide recommendation of 20mA is far lower yet than both, assuming it means across one emitter resistor, at 9.4mV. I'm inclined to go with 14.1mV and 18.8mV, but would like to hear if anyone else has thoughts on this.
First, you have the service manual:
Second, you have the Kenwood guide to biasing all of their amps and receivers:
And finally, you have Echowars' recommendation for the KR-6340, which is very similar to the KR-5340 and has the same values recommended for bias in the preceding two documents:
Kenwood KR-6340 Right Channel Issue
Don't mean to hijack a thread but just looking for a simple answer and since this is a recent thread. . . . . I started working on a 6340 with noise in one channel and cannot figure out the layout of the two boards. Not sure if one is front left and right and the other is rear left and right...
audiokarma.org
The original SM values of 30mA and 40mA for each channel (two pairs of outputs per channel) are a bit lower than EW's recommendation of 20mV, coming out to 14.1mV and 18.8mV instead. And the Kenwood biasing guide recommendation of 20mA is far lower yet than both, assuming it means across one emitter resistor, at 9.4mV. I'm inclined to go with 14.1mV and 18.8mV, but would like to hear if anyone else has thoughts on this.
