857D pulling 2.9 amps at idle and the PLL unlocked. Help!

Noah Chalker All Messages By This Member #53670 Hi, Last year, I bought a used FT-857D from a gentleman. It was new in box but sat in a closet for 15 years. Today I turned it on and heard the relays switch on and off a bunch and saw the frequency readout flash (my understanding this is PLL unlock).? The radio is now pulling high current at idle. 2.9A at idle. Because of this, I am keeping it off until I get a better idea what is going on. I have the collins mechanical filter installed so I have opened it up.? Any idea what can be going on?
Mike #53673 Well first off if the radio was new and had not been messed with I would start by going back and removing the filter you installed, I assume you did not check the unit out prior to that, also while it is open check all the screws that hold the board down to insure they are tight then I would start at the power supply and connections and work my way to the radio bad connections and or bad fuse/holder will cause high current draw. Good luck, ?Troy ke4ska?
Adrian Fewster #53675 On 29/10/23 23:23, Mike wrote: bad connections and or bad fuse/holder will cause high current draw. I don't think so, , usually insufficient current flows, due to the extra series resistance of a bad connection . Check ohms law. A bad connection will cause high volt drop across it, perhaps that was what you were thinking.. More likely it is a leaking capacitor. or other failed component live in the RX sector. There will be a hot or warm spot to the touch wherever it is at nearly 3 amps. Check with a multi meter for lower than usual volt drop across a faulty shorted component is another indicator. 73 vk4tux
Adrian Fewster #53676 toggle quoted message Show quoted text On 30/10/23 00:07, Adrian Fewster via groups.io wrote: On 29/10/23 23:23, Mike wrote: bad connections and or bad fuse/holder will cause high current draw. I don't think so, , usually insufficient current flows, due to the extra series resistance of a bad connection . Check ohms law. A bad connection will cause high volt drop across it, perhaps that was what you were thinking.. More likely it is a leaking capacitor. or other failed component live in the RX sector. There will be a hot or warm spot to the touch wherever it is at nearly 3 amps. Check with a multi meter for lower than usual volt drop across a faulty shorted component is another indicator. 73 vk4tux

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857D pulling 2.9 amps at idle and the PLL unlocked. Help!