REPAIR HELP: Philips Speaker System 2.1 SPA2360/17

[anneelise]

Can someone help me identify these parts? I'm trying to repair an old set of speakers that caught on fire recently (lmao)

 

[kellys_eye]

They are 'pentawatt' package devices and integrated audio amplifiers potentially TDA2003 or TDA2030 etc. As they are all identical (U1,2,3,4 etc) can you see any identification marks on any of them?

 

[dave9]

Map the pinout of that IC, the function of each pin based on the circuit leading to it, and measure the supply voltage getting to it. This will tell you whether you can just drop in something like TDA2030.

 

[davenn]

And they are just ferrite beads epoxied onto a straight bit of wire to form a choke

readily available

 

[nepow]

You could try locating a schematic on line Google he model number.

 

[dave9]

If you get really bored you might see if you can hold a soldering iron on the leg of the ferrite bead, wait for it to degrade the epoxy, then use a couple pair of pliers to pull the lead out so you can stuff a new wire through. Worst comes to worst, you have wasted two minutes and will have to spend more time hunting one down.

This is another example of why I cannibalized a bunch of gear years ago, little things like a ferrite bead (that don't age/decay unless there is a fault) where it's more time to hunt down and more in postage than it's worth.

 

[duke37]

Did you cut the lead to L1? or did it fuse. If the latter, then there is something very wrong elsewhere. You could try replacing it with a plain wire.