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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Panasonic KX-TPA50 earpiece speaker
For benefit of the archives...
I just finished repairing a Panasonic KX-TPA50 handset (it's a cordless handset for their KX-TGP500/TGP550 voip base station). Symptoms were no sound from the earpiece (although sound was OK in speakerphone mode). Resistance measured across the earpiece terminals on the circuit board was infinite. The number on the existing part (sorry, I didn't write it down) didn't lead anywhere. The earpiece speaker is round with red/black wire leads attaching to the circuit board. Diameter is roughly 15mm. Thickness is about 4mm. Digikey carries several of these. I got the Soberton SP-1304 (P/N 433-1095-ND), a 32-ohm speaker 13mm in diameter and 4.2mm thick. Leads were only about 3cm long, so I retained the existing leads in the handset and spliced the new leads in. There was a small adhesive foam pad on the back of the original speaker which I carefully peeled off and transferred to the back of the new speaker. -- G. Paul Ziemba FreeBSD unix: 12:56PM up 97 days, 16:35, 8 users, load averages: 1.23, 1.16, 1.13 |
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