Written from the bench, by people who have had the board on the table. Use them to diagnose the fault before you buy anything — including from us.
Repairs on mains-powered equipment carry a serious shock risk. Work only with the unit unplugged and the reservoir capacitors discharged, or leave it to a qualified technician.
No standby LED, no relay click, completely dead. In the vast majority of HKTS subwoofers we see, this is one component on the power supply board — and it is measurable in under five minutes.
7 min read
Read the guideThe LED lights, the relay clicks, and there is silence. Measuring two voltages tells you which board to buy — and prevents the single most expensive misdiagnosis in subwoofer repair.
5 min read
Read the guideManufacturers print a part number on the board itself, and it is the fastest way to get the right replacement. Here is where to find it and how to read it.
4 min read
Read the guideEnter the model printed on the back of the cabinet. If we make the board you'll get it instantly; if we don't, we'll quote a reverse-engineering run.
Type the model exactly as printed on the back of the cabinet — for example HKTS 210 SUB or JBL SUB140P. We match on partial input too.