<!-- from fixya rte -->Mini hi-fi wont turn on standby light on - Audio Players & Recorders

Overheating - power supply issue - failed internal components. Take to an LG Service Centre.

LG CM9730 - Mini Hi Fi System & Audio - LG Electronics

https://www.lg.com > ... > Home Theatre Systems
LG X-BOOM CM9730 · SOUND. Afro Hip-hop: Yes. Auto EQ · PHYSICAL. Carton Size (W x H x D) mm: Main : 631 x 423 x 537 Spk : 1301 x 865 x 639. Gross Weight (Kg) ...
Audio In - Aux: Yes(Rear)
Portable In: Yes (Front)

LG CM9730 - Super Power Mini Hi-Fi System 2300 Watts

https://www.lg.com > ... > TV/AUDIO/VIDEO > Audio
LG CM9730 - Super Power Mini Hi-Fi System 2300 Watts with Smart DJ, Bluetooth Streaming, USB Direct Recording and LED Lighting.
Front Speakers: 520mm x 720mm x 498mm
Portable Input (3.5mm): Yes (1)
Weight (Speakers): 71kg
Weight (Unit): 9.8kg

LG CM9730 ' LG New Zealand

https://www.lg.com > Home > TV/Audio/Video > Audio
Get more information on the LG CM9730. ... CM9730. Super Power Mini Hi-Fi System 2300 Watts ... Output: 575W x 4. Sound System: Bi-Amplified Stereo - 3 Way ...
Weight (Speakers): 71kg
Weight (Unit): 9.8kg
Front Speakers: 520mm x 720mm x 498mm
Battery: Yes (AAA x 2)

contact your local hi-fi shop

Check and replace damaged components at its audio output section circuit. Short circuited components at that section circuit will cause this fault. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/

If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

If only demo mode is playing,it's mean set is in standby mode.Normally
in standby mode it can't be operated.You have to power on the set by pressing power botton during demo mode.Once it gets power on,it will
start to work according to user required function.If the set not get power on after pressing power botton,then it's an electrical problem
and need to visit your nearby repairing centre.

when you plug it in it goes into stand by mode automatically, the LCD display will be lit and you can set the time but nothing else will function. you have to hit the on/standby button to turn it on.

My Sony Mini MHC-GX470 have been working until a power outage yesterday and now it will start coming on the goes back to standby mode. I can hear it going through the system, starts the radio and immediately goes to STANDBY.
I need HELP!!!!!!!!!!!!!!!!!!!!!!!!

This usually means an overload. On my daughter's system it was because she had extended the speaker wire and where she has spliced the wires the two sides were touching. Try un-hooking your speakers and turn on the system. If it works without shutting off then you can reconnect the wires one speaker at a time. Maybe you have a short in the wire or speakers.

you know electronic devices are usually affected by liquid substance when they are at work.At the moment the tea poured on the system,should you have switched it off immediately,the problem would have been a minor one.However, since you left the system on, I think the system panel has been greatly affected and needs repair.You will need to take it for repairs, but you could try loosing the panel and drying it with a heater or by sun, then fix it back in place to see if it works,ok

if it has been in standby for years the power supply has died .dont bother to much to fix £150 plus ditch it commo fault with all units left in standby they die in the end regards kirk