Hi, i am having a problem with a panasonic SA HT95 ....getting error code F61, I replaced the ICs one them was bad, also changed small fuse on IC board, got standby light . When power switch is turn on the relay clicks on an off.
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Error code ' F61 ' on most Panasonic models indicate that the built-in diagnostics has sensed a fault at the output stage. This would normally refer to a failed output amplifier IC (?P/N RSN704D66P?). In some instances, the fault could also be triggered by:
strands of Speaker wires inadvertently touching each other;
failed Cooling Fan of the output IC.
Options then are:
consider a DIY (do-it-yourself) repair only if familiar with electronic components & circuitry, use of a DVM/VOM and a soldering iron. Access to a Service manual would be an advanatge;
seek the services of an authorized service center specially if the unit is still under warranty;
consider other options based on downtime, cost of repair, parts of availability, age of unit and prices of comparable but newer models.
The F61 is the shorthand for protect mode. This indicates a problem with the output amplifier section. I don't have a listing for your specific model, but a similar one HT95 lists IC501 as the output amp chip. Check for the marking on the large black IC attached to the heatsink it may be RSN311W. If so, this can be ordered using part number: RSN311W64D-P for $95.20 from tritronicsinc.com.
F61 just equal 'power fault' Generally a fault with either audio power amp ic (IC 501) or power supply ic IC 502.
As both said ICs get very got first remove bottom steel grill and with the power off and capacitors drained (shorted together with a low ohms resistor or leave unit powered down for a few hours) resolder the ICs legs if there are any signs of cracks aka dry solder joints.
Hope that helps.......