UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Panasonic AG-6400 Hi-Fi audio problem

Maarten · 1st May 2019, 6:20 pm

I don't know the model, but I would suspect every SMD electrolytic between the audio heads and the AF-stage. If there are no SMDs the same goes for miniature wired electrolytics. You could try heating up the suspect area with a hairdryer while listening for improvements. If audio improves, the bad electrolytic is in the heated area.

Does it have a hifi-tracking meter? Is the hifi signal recognised even when it's popping? If so, the first few stages after the head amplifier are probably okay.

1st May 2019, 6:20 pm	#2
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,203	Re: Panasonic AG-6400 Hi-Fi audio problem I don't know the model, but I would suspect every SMD electrolytic between the audio heads and the AF-stage. If there are no SMDs the same goes for miniature wired electrolytics. You could try heating up the suspect area with a hairdryer while listening for improvements. If audio improves, the bad electrolytic is in the heated area. Does it have a hifi-tracking meter? Is the hifi signal recognised even when it's popping? If so, the first few stages after the head amplifier are probably okay.