UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Kenwood TS-520SE Transceiver overhaul notes Pt1

G8UWM-MildMartin · 9th Feb 2019, 9:54 pm

Thanks.
A quick look at the TS-530S service manual online has a photo showing the same type of resistors across the big electrolytics, and possibly on the rectifier PCB, but obscured by wires.
Since these are equalising resistors across the capacitors and diodes, failure of one would subject its component to overvoltage. As carbon composition resistors are notorious for failing even when unused, I'd definitely suggest checking them before powering up!
I trust your 530 has survived even better than my 520.

9th Feb 2019, 9:54 pm	#6
G8UWM-MildMartin Heptode Join Date: Jan 2004 Location: Stockport, Greater Manchester, UK. Posts: 827	Re: Kenwood TS-520SE Transceiver overhaul notes Pt1 Thanks. A quick look at the TS-530S service manual online has a photo showing the same type of resistors across the big electrolytics, and possibly on the rectifier PCB, but obscured by wires. Since these are equalising resistors across the capacitors and diodes, failure of one would subject its component to overvoltage. As carbon composition resistors are notorious for failing even when unused, I'd definitely suggest checking them before powering up! I trust your 530 has survived even better than my 520.