Re: Yamaha rx v373 - no power
It is a Silicon Image SiI9573CTUC, but there is no listing in the parts list. I would not look forward to changing a SMD 176-pin IC.
xsony30
New Member
Last Activity: 07-08-2019, 10:15 AM
Joined: 08-27-2012
Location: Garland, Texas
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Re: Yamaha rx v373 - no power
Unfortunately Yamaha has neither the CPU (IC225) or the HDMI IC202, so I am basically s.o. l.Leave a comment:
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Re: Yamaha rx v373 - no power
Thanks for the service manual, mmoore5533. I found the short was in IC202, the HDMI receiver. I tried applying 3.3vdc to the circuit trace after removing Digital board from the unit and the HDMI IC started getting hot, drawing over 5A!Leave a comment:
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Re: Yamaha rx v373 - no power
mmoore5533, I have a RX-V373 with the same problem, no power, relay clicks on/off immediately. I found that 3.3vdc supply to IC225 pins 120 and 121 was shorted, causing it to go into protect. Holding down "INFO" AND "TONE CONTROL" while plugging in AC cord cause ac power relay to click. Still trying to find short, I really need diagram of the HDMI/CPU circuit board layout. Do you still have the schematics?Leave a comment:
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Re: Rubber belts (late 70s-early 80s) turning into goo
Acetone is a good solvent to remove the goo, but be careful around plastic surfaces. Also don't get any goo on your clothes, it is very difficult to remove.Leave a comment:
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