Re: Yamaha RX-A1020 protect
This 2 components are hot even if i isolate the amp side , Its that normal?...
hanasaku
New Member
Last Activity: 04-20-2023, 08:17 AM
Joined: 03-04-2022
Location: Täby
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Re: Yamaha RX-A1020 protect
I suspect the problem is in the -LB signal because R1287 and Q1098 are extremely hot but they work, also the signal shorting the double resistor is the positive transistor Q1048P which is connected to the -LB_RLeave a comment:
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Re: Yamaha RX-A1020 protect
yes. one of the 0.22 ohms resistor fail, i already change and the diode but burn the transistors on the right channel ....Leave a comment:
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Re: Yamaha RX-A1020 protect
i found something on the right channel, the resistor R1111 3 point 22ohm x2 just one side was ok, and the diode D1028 was open/Bad.
i will check changing this .Leave a comment:
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Re: Yamaha RX-A1020 protect
anyone can guide me?
can be a floating ground i suspect, or a bad capacitor.
thanks in advance.Leave a comment:
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Yamaha RX-A1020 protect
HI, i wonder i someone can guide me with my yamaha receiver, i test almost everything that i found on the net, im run out of option, i have in all the channel -7v and just the right front -5.2v, i check and i have randomly 6 and 8 v from the signal AMP_OLV, all the power supply signal are ok, sometines i have goog voltages on the +B and -B but now a have 70v and -55v.
Thanks for the help -
Re: Yamaha RX-A1030 I Protect
R_J
Can you help me ? did you find the problem on your receiver?Leave a comment:
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Re: Yamaha RX-A1030 I Protect
i disconnect the CB106 and CB105 and the voltage are gone, but i presume at the transistors are ok on the amp.Leave a comment:
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Re: Yamaha RX-A1030 I Protect
Hi , Krustyone, did you found the solution on your RX-A1030? i have the same issue , i check all the signal and the ground are floating with 7.8v all my output have -7.5 volt.
someone can guide me?
regardsLeave a comment:
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