tejasnaidu
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Have a faulty HK A/V receiver model AVR25MKII
The receiver microcontroller is faulty-- no display, no function and in standby mode only. All voltages are correct. The microcontroller used is Inkel CXP 82220-107Q.
Can the microcontroller be simply replaced with a new one or has the ROM in the new microcontroller to be programmed before soldering on to the P.C.B.. The processor has 20K bytes of ROM and 624 bytes of RAM.
Regards,
Tejas naidu
The receiver microcontroller is faulty-- no display, no function and in standby mode only. All voltages are correct. The microcontroller used is Inkel CXP 82220-107Q.
Can the microcontroller be simply replaced with a new one or has the ROM in the new microcontroller to be programmed before soldering on to the P.C.B.. The processor has 20K bytes of ROM and 624 bytes of RAM.
Regards,
Tejas naidu