Battery not holding charge on Alesis transactive pa system. Power cord connected and keeps turning off.

Wireless PA system HS120B with Wireless Microphone ' Manualzz

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RECHARGEABLE PORTABLE WIRELESS PA SYSTEM With Wireless Microphones (VHF Frequency) fmm mm EN Hisonic Hisonic HS-1 20B ? > DN Warning for the disconnected ...

Hisonic HS120B PA System with Built-in UHF Wireless ...

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Hisonic HS120B Lithium Battery Rechargeable & Portable PA System with Built-in ... Power cord; 12V cigarette lighter power cable; Carrying bag; User manual.

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The software is on an EPROM chip inside.
It can go awry for a number of reasons, including a voltage surge via the earth, coming back from the amp
Always connect everything before powering up your system. If you disconnect to troubleshoot, power down before reconnecting.

Try this if you don't mind losing all your patterns:

Power off
Hold down "ERASE", "DELETE", and "RECORD" while you turn power on

This will clear all your memorized patterns & reinitialize the system.
If that doesn't work, the EPROM chip may need to be reprogrammed or replaced.

5.4J Copy a Song to Another SR-16 Via MIDI
The SR-16 can send Song system exclusive information to another SR-16 via MIDI. If you have only one SR-16, you can skip this section.
1. The source SR-16 should be in Song mode and stopped. Connect the source SR-16 MIDI out to the destination SR-16 MIDI in.
2. Select the Song to be copied.
3. Press and hold the COPY button, and keep holding it down until step (5). The display says COPY TO SONG.
4. Do not enter any destination Song number-just press PLAY to send the data out over MIDI. It will end up in whatever Song number had been selected at the receiver. If the Song was not empty, the new Song steps will be appended to the existing Song steps.
5. Release the COPY and PLAY buttons.
Caution: This does not transfer Pattern information, only the song steps. To transfer Patterns to another SR-16, see section 3.3D and 3.3E.


Hopefully this helps, it comes out of the SR16 Manual, page 40 I think
Cheers Pete

Some kind of feedback perhaps? Are you using a multi core with sends & receive inside it but NOT individually screened? i.e. "pick up" inside the cable? Is it both speakers? Try them one at a time in case one is faulty but affecting the other? Unplug the input leads & see if the speakers by themselves are making any sound ( a small hiss?) If the speakers with no input (but powered :-) makes no whistle then it's coming from other gear...... Also the speakers may have switch mode power supplies & if you don't have a decent ground you could have problems. Make sure you have a good ground connection back to the fuse board. If you studio is in a shack at the end of the garden running on extension cords you may need a local connection to ground..... Good Luck!

The Problem is a dead battery which is soldered to the circuit board inside the unit. It's a Panasonic BR-2325-1HC, but really you can replace it with any similar 3V battery.
Here's how I fixed mine.
http://andrewapeterson.com/2013/08/fix-alesis-q2-first-made-strange-sounds-then-bad-program-issue-quadraverb-2-battery/

Doubtful you can find replacement parts it, but a clever electronics guy can bypass the switch (or put on a new one) and make it so it powers up when you plug it in.

It is possible that the battery is already full charge or nearly full and the chrger senses this and doesn go into charge mode.

Does the knob click or have a detent when you turn if fully clockwise? You should feel a little resistance before it is fully to the off direction. There is a blue LED that indicates power is on... note that it might take a little time to fully go out when switch is turned off as the capacitors do hold a charge and LED's take very little to illuminate. If both units are acting the same, I suspect you may not be turning the knob quite hard enough to turn off the switch... you should not force it, but it will offer a bit of resistance.

Connection all depends on what type PA system you have. Here are the rules: Power this device from the SAME receptacle your mixer is powered by, even if it means running an extension cord. Use ONLY a balanced line from the mixer... either TRS cable or XLR cable.

It sounds like the adapter jack in the Alesis has a bad solder joint to the circuit board .This is a fairly common problem with all modules that have external power supplies and is an easy fix if you feel confident and are good at soldering.