Need component values for Xtant 603x

[Perry Babin]

I need the values for the resistors designated R320 and R330 in the power supply of a 603x. Xtant has not replied to email so I'm looking elsewhere.

http://www.bcot1.com/images/xtant1.jpg
http://www.bcot1.com/images/xtant2.jpg


Thanks in advance

 

[swordfish689]

I wish i could help you out, i have no xtant laying around, actually i never repaired one. If you can, i need the value of these 2 resistors on a alpine mrd500.

An externally hosted image should be here but it was not working when we last tested it.

R537 and 538, i replaced them with 10 ohms, i have a mrdm301, and they use those values. but they seem to smoke when power is applied to the amp, i'm guessing there the wrong value, I have a funny feeling its the tda7571 is not working correctly.

 

[Perry Babin]

I received a reply from Xtant. For those who may need this information, the values are:

r320 is 100ohm
R330 is 1.0 k


swordfish689:
I've never had to work on one of those amps so I don't know the value of those resistors. Where did you find the IC for it?

 

[swordfish689]

I found out that they are 3 watt 10 ohms, so i was right. I never found an ic for it. There's a place in canada that sells alpine parts, they sent
me a small part of the service manual, it shows what the voltages are on each of the 64 pins of the ic . This way i can check if its the ic or not.