Marhall kilburn Main fuse blows and thermistor is broken

Question

Marshall Kilburn Portable Bluetooth Speaker

The Marshall Kilburn Bluetooth speaker is a compact, portable stereo speaker. This speaker comes with a built in Class D amplifier with quality sound range for its size. Bluetooth connectivity also allows for quick connections to bluetooth capable devices.

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TheNisse84 @thenisse84

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crwdns2931729:0crwdne2931729:0: Nhl 3, 2021

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Marhall kilburn Main fuse blows and thermistor is broken

I found a ntc thermist

someone knows the modell of thermistor the black round next to the fuse ?

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TheNisse84 what exact device does that board come out of?

crwdns2934271:0Nhl 3, 2021crwdnd2934271:0 oldturkey03 crwdne2934271:0

Marshall kilburn 1

crwdns2934271:0Nhl 4, 2021crwdnd2934271:0 TheNisse84 crwdne2934271:0

TheNisse84 so it appears you have a short-circuit somewhere. Post a picture of the complete board so we can see what else is going on. What have you checked already?

crwdns2934271:0Nhl 7, 2021crwdnd2934271:0 oldturkey03 crwdne2934271:0

I have made a schematic from the PSU.

greatings , Jan Hoeve , pe1rfe

for contact , pe1rfe@outlook.com

holland.

crwdns2934271:0N'w 10, 2021crwdnd2934271:0 Jan Hoeve crwdne2934271:0

Hello! I have a similar problem, fuse blows immediately but the speaker works fine from battery if it's recharged externally. Nothing is obviously burned or damaged on the board. Any suggestions how to diagnose the problem?

crwdns2934271:0Sun 14, 2022crwdnd2934271:0 Nikolay crwdne2934271:0

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TheNisse84 so it appears you have a short-circuit somewhere. Post a picture of the complete board so we can see what else is going on. What have you checked already? — oldturkey03
I have made a schematic from the PSU.

greatings , Jan Hoeve , pe1rfe

for contact , pe1rfe@outlook.com

holland. — Jan Hoeve
Hello! I have a similar problem, fuse blows immediately but the speaker works fine from battery if it's recharged externally. Nothing is obviously burned or damaged on the board. Any suggestions how to diagnose the problem? — Nikolay