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Goodmans Record Player in case

Johnics

Nov 12, 2023
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Goodmans Record player Fault , Power in and turntable turns but no sound out on either the built in speakers or headphones, also have line in no sound from that either . Think it might have wrong power supply as its Record player marked 5v dc but power supply was 12v dc. If somthing is blown what should I look for in the circuit that might have been taken out.............................................................00000 Thank you for any help
 

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Delta Prime

Jul 29, 2020
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You like movies?
EatingPopcorn.gif
Model and year of your unit.
 

Johnics

Nov 12, 2023
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You like movies?
View attachment 61508
Model and year of your unit.
Goodmans Bluetooth Turntable: Model No 347753 as I didnt buy it, I would say it about 2021-2023
 

kellys_eye

Jun 25, 2010
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It's a designated 5V (1A) unit that looks to have a single main controller IC for audio processing and bluetooth operation etc. These devices rarely survive a 12V input as the main IC is easily damaged by over voltage. You'd get away with 6V or even 7V but 12V will kill it dead.

Boat anchor device.
 

Johnics

Nov 12, 2023
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Thanks for info do you think if I change the IC that it will work or would there be more components blown
 

Delta Prime

Jul 29, 2020
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Do you have the owner's manual?
Do you have the ability to desolder and solder fine pitched surface mount components?
Do you have a 5 volt supply?
Is this your phono cartridge or pick up head for the turntable?

photo_1699844126000.png
I'm hoping you're going to say no. Because if that's where you plug your headphones in. that's a short circuit it that means it's switched no speaker output, and no headphone
Output. And I would go out buy a lottery ticket.
Only because how you typed this...
If somthing is blown what should I look for in the circuit that might have been taken out.............................................................00000
I am willing to take another;
(Poke at you).
Welcome to Maker Pro! :)
 
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Johnics

Nov 12, 2023
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Do you have the owner's manual?
Do you have the ability to desolder and solder fine pitched surface mount components?
Do you have a 5 volt supply?
Is this your phono cartridge or pick up head for the turntable?

View attachment 61518
I'm hoping you're going to say no. Because if that's where you plug your headphones in. that's a short circuit it that means it's switched no speaker output, and no headphone
Output. And I would go out buy a lottery ticket.
Only because how you typed this...

I am willing to take another;
(Poke at you).
Welcome to Maker Pro! :)
Poke away
Don't have the manual
Have a 5v power supply
Yes it's the cartridge
If it's for the bin I would give it a go at trying to fix it ,no harm done in my part.
 

Delta Prime

Jul 29, 2020
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Johnics

Nov 12, 2023
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Thanks for the manual.
Found the chip thats blown, under a heat shield,
does anyone know what the full number is and where to buy a replacement, its a 16 pin
 

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Delta Prime

Jul 29, 2020
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Sorry I'm on a stupid phone.
I can't see anything write it down please
 

Delta Prime

Jul 29, 2020
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replacement, its a 16 pin
Are you sure it's 16 pins?
Because of the 204.1 could be a Wi-Fi RF switch . I switch (no pun intended) from a stupid portable phone which I hate to a computer screen which I hate even more... but I can see now. Could you take a panoramic photo where they came out of the support circuitry is what I am interested in.
I mean no offense I'm asking this because I don't know. Would you happen to know how to use a multimeter because I'm pretty sure other sections of the circuitry are in parallel with the power supply we need to find the power bus and follow that; more things may have went poof! A multimeter is a good tool for further investigation.
 

Johnics

Nov 12, 2023
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It's still on the board will try and take a better photo later, going to work.
WiFi ? The record player has a Bluetooth connection built into it
 

Delta Prime

Jul 29, 2020
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This looks to me like a metal enclosure like a tin can with a popped lid.
It is why I asked for another photo. I was just thinking out loud. But that could very well have been a mistake "that I do often!"
Now I got to go and play That's What I call work!
Bye-bye.
photo_1699971632339.png

 
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Johnics

Nov 12, 2023
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Please find attched photos, best I could do with equipment I have
The last 2 photos is the full board but in 2 photos, photo 4 is the left of the board with the damaged ic chip and photo 5 is the right side of the board
 

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kellys_eye

Jun 25, 2010
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That knackered IC is an audio amp and potentially a Class-D type that runs on the main 5V rail supply. Before replacing it you could check that audio is being passed TO that device to ensure there's nothing else in the signal path that is dud.
 

Johnics

Nov 12, 2023
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That knackered IC is an audio amp and potentially a Class-D type that runs on the main 5V rail supply. Before replacing it you could check that audio is being passed TO that device to ensure there's nothing else in the signal path that is dud.
Seems good, couple of pads a bit rough, would need a part number to proceed or where I could purchase a chip. Any ideas Thanks
 

Johnics

Nov 12, 2023
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Just an update found a replacement board complete I think I will go with that. I have learnt a little bit on this forum so Thanks for all the help. Cheers
 
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