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Play:5 Gen 1 Q27304 - What is it?

  • January 13, 2026
  • 1 reply
  • 48 views
R

My Play:5 Gen1 has no sound coming from the mid-range speakers. Bass and tweeters are working fine.

The main PCB shows the 5 x output caps are all bulging. I’ll get those changed.
Also Q27304 is cracked so I assume failed.
The IC is SOIC6. The marking on the top is M05A; which I think is a package code for SOIC6.
But what is the IC?

Any help appreciated

Ray

 

1 reply

R
  • ray-mopac
  • Author
  • Contributor I
  • February 11, 2026

The failed component is p-channel MOSFET. The high side switch for the push-pull output stage of the d-class amplifier. I assume it failed because the low side switch (n-channel FET) failed short circuit.

I replaced the p-channels SOT23-6 with DMP3050LVT

I replaced the n-channel SOT23 with ZXMN3F30FHTA

I also replaced the main filter caps on each channels as they were bulging.
Then found a failed DC isolation cap on one channel; so replaced all 4 channels. (Bass channel doesn’t need DC isolation cap as it is full bridge)

The speaker is now back working again :o)

Ray

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