Friday, April 5, 2019

China made Wireless Speakers - 2




















It says - BLUETOOTH  SUPER BASS PORTABLE SPEAKER. This wireless speaker has a good deign and enough heavy weight for staying on a table and has worked well for about three years under very light use (seldom used).  The sound quality is good. But it reached the battery life and no re-charging can be made though it announces "Please charge".  I liked it but decided to open it.



When I purchased this it is bare has no box usually showing technical specifications. The operating side (bottom) shows a very brief spec. It says

Working Voltage 3.7V
Frequency Range:  60Hz -18KHz
Charging Voltage: 5V
Power: 3W












Inside:

1) 28 pin IC: ACCFCV56.1-07ABT

I cannot identify this on the internet. Logo seems <JL> or <JC> (*).

2) RDA5876: I found the spec of RDA5876P - SINGLE CHIP FOR BLUETOOTH & FM RADIO TUNER.

3) (MD BX1511) MD25D80S1G: I found the following on the China internet.
SPI NOR: MD25D80SIG 8Mbit 1MB SOP8

SPI is not the brand name but stands for Serial Peripheral Interface.

4) LTK9902B SOP8 - Audio Amp 3W (same as the previous report ‐China made Wireless Speakers - 1)


I plan to change the battery as I have some stock.

--------

<JL> or <JC> (*)

After re-checking I found <JieLi Ttechnology> use this logo <JL>.
http://www.zh-jieli.com

However, I am not sure right now if the above 28 pin IC: ACCFCV56.1-07ABT belongs to this company or not.


sptt

10 comments:

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  4. Nice Post. This is very informative thank you for sharing. Portable Speaker with Mic

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  6. Hi. Can you share the battery's spec? It's lipo? mah? thank's a bunch

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