Hi All,
New member but have been following from the sidelines for a while. Been fixing some minor Power supply problems on Yamaha Receivers while we have been in lockdown to keep occupied. Got this RX V2067 a while ago and thought it would be an easy fix, but I have missed something and it has got me stumped on what else to look for.
On Power up the unit immediately turns off, the protection mode is kicking in I guess. I am able to disable protection mode at it take me into diagnostic mode and the only error I get is "PS2 PRT:162H" - From my understanding this indicated the fault is in Power Supply 2 and the fault is the Protection circuit. The values I get 162H, 162H and 164H indicates a voltage is high and outside the specs. I have checked 5v, -+12V and even found a 30v rail which all appeared to be fine. Not sure which voltage the PS2 PRT is monitoring so not able to focus in on a part of the circuit.
I am an old IT guy and have did some basic electronics some 35 years ago so pretty rusty but keen to have a poke around.
Manual over 30mb so to large, but here is a link.
Any help with this would get great,
Dave
Sydney Australia
New member but have been following from the sidelines for a while. Been fixing some minor Power supply problems on Yamaha Receivers while we have been in lockdown to keep occupied. Got this RX V2067 a while ago and thought it would be an easy fix, but I have missed something and it has got me stumped on what else to look for.
On Power up the unit immediately turns off, the protection mode is kicking in I guess. I am able to disable protection mode at it take me into diagnostic mode and the only error I get is "PS2 PRT:162H" - From my understanding this indicated the fault is in Power Supply 2 and the fault is the Protection circuit. The values I get 162H, 162H and 164H indicates a voltage is high and outside the specs. I have checked 5v, -+12V and even found a 30v rail which all appeared to be fine. Not sure which voltage the PS2 PRT is monitoring so not able to focus in on a part of the circuit.
I am an old IT guy and have did some basic electronics some 35 years ago so pretty rusty but keen to have a poke around.
Manual over 30mb so to large, but here is a link.
Any help with this would get great,
Dave
Sydney Australia
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