I was wondering if anyone has this electronic manual, MX Z7300 mez, because it had a fault in the display did not turn on, its own amplifier, or radio, or equalizer, check the power supply, and I have 2 transistors wrong, but Your information has been erased, it is Q 403, Q 404, they go on the aluminum cooling plate, next to Q 70, and Q 72, which are 2SB 1370, both of you, thank you