Hi everybody,
I have a problem with an old Victor A-X5D amplifier. My power circuit is getting very hot the power transistor and loudspeaker is muffled. I suspect 2 IC VC 5022 (Class A) is damaged which distorts the working mode of the transistors on the power circuit. Since IC VC5022 is not available for replacement, I want to skip Class A mode and run Class AB straight but I don't know how to do it correctly. I have attached a schematic and hope someone knows and has dealt with this problem, please just help.
Best regards,
I have a problem with an old Victor A-X5D amplifier. My power circuit is getting very hot the power transistor and loudspeaker is muffled. I suspect 2 IC VC 5022 (Class A) is damaged which distorts the working mode of the transistors on the power circuit. Since IC VC5022 is not available for replacement, I want to skip Class A mode and run Class AB straight but I don't know how to do it correctly. I have attached a schematic and hope someone knows and has dealt with this problem, please just help.
Best regards,
Attachments
yes, thank you i have read through but i am worried whether it applies to my amplifier circuit or not? I'm afraid it doesn't look like that circuit
That's the schematic of the chips. It's a bias chip. Evidently JVC used it in some of their designs.
Search for VC5022.
Search for VC5022.
I read once in some way, that the LA2500 is its replacement, I do not know if it is possible to obtain it today