Matsui MR4099 battery problem. - UK Vintage Radio Repair and Restoration Discussion Forum

bassist1 · 2nd Jul 2020, 3:19 pm

Ive just put 6 'D' size cells and 2 AA cells in this radio (Sangean ATS803 clone)and cannot get the radio to switch on.The clock has come on showing 0:00 with colon flashing but thats all.The LOCK is off,and the batteries are new.The radio hasn't had batteries in it for over a year now.Could that be something to do with it? Any pointers gratefully received.

dragonser · 2nd Jul 2020, 3:44 pm

Hi,
it is just a wild guess but do you have to set the clock before the radio will work normally ?
it looks like the two aa batteries are for the clock / timer. the d cells are for the radio supply.

frsimen · 2nd Jul 2020, 4:08 pm

Hello,

That happens quite often with the MR4099 and similar. The set seems to lock up when the clock batteries are changed. The trick is to remove all the batteries, wait 5 minutes then reinsert the clock batteries and try again.

Another approach is to power the set via the external power socket, with no batteries in place. With the set running, insert the clock batteries and all should then be well.

Paula

bassist1 · 5th Jul 2020, 7:23 pm

Paula thats basically what I ended up doing.Even using the wall wart after 24 hours it still wouldnt fire up.The 2nd day using just the W/W it fired up but the display was very weak.It strengthened after about an hour.I then left it on,inserted the batteries and then disconnected the W/W,and its bee tickety-boo ever since.What a palaver though.

2nd Jul 2020, 3:19 pm	#1
bassist1 Triode Join Date: Dec 2009 Location: Downpatrick, Northern Ireland, UK. Posts: 31	Matsui MR4099 battery problem. Ive just put 6 'D' size cells and 2 AA cells in this radio (Sangean ATS803 clone)and cannot get the radio to switch on.The clock has come on showing 0:00 with colon flashing but thats all.The LOCK is off,and the batteries are new.The radio hasn't had batteries in it for over a year now.Could that be something to do with it? Any pointers gratefully received.

2nd Jul 2020, 3:44 pm	#2
dragonser Heptode Join Date: Aug 2009 Location: Carshalton, Surrey, UK. Posts: 734	Re: Matsui MR4099 battery problem. Hi, it is just a wild guess but do you have to set the clock before the radio will work normally ? it looks like the two aa batteries are for the clock / timer. the d cells are for the radio supply. __________________ Regards Peter B

2nd Jul 2020, 4:08 pm	#3
frsimen Heptode Join Date: Jan 2011 Location: Croydon, London, UK. Posts: 773	Re: Matsui MR4099 battery problem. Hello, That happens quite often with the MR4099 and similar. The set seems to lock up when the clock batteries are changed. The trick is to remove all the batteries, wait 5 minutes then reinsert the clock batteries and try again. Another approach is to power the set via the external power socket, with no batteries in place. With the set running, insert the clock batteries and all should then be well. Paula

5th Jul 2020, 7:23 pm	#4
bassist1 Triode Join Date: Dec 2009 Location: Downpatrick, Northern Ireland, UK. Posts: 31	Re: Matsui MR4099 battery problem. Paula thats basically what I ended up doing.Even using the wall wart after 24 hours it still wouldnt fire up.The 2nd day using just the W/W it fired up but the display was very weak.It strengthened after about an hour.I then left it on,inserted the batteries and then disconnected the W/W,and its bee tickety-boo ever since.What a palaver though.