Power supply schematic for LG DA-5630A req

**watson** · 18-09-08, 04:05 PM

Guys

If anyone has a schematic for this surround sound beast a copy would be appreciated.

Thanks
Watson

**best4less** · 18-09-08, 04:50 PM

Whats the problem with it ???

**wallaroo** · 18-09-08, 10:31 PM

Model # doesn't come up on LG service website. Double check it??????

**best4less** · 18-09-08, 10:40 PM

whats the easiest way to get a jepg from a PDF doc ????

**best4less** · 18-09-08, 11:01 PM

I found this link on another site

really truely

MEGAUPLOAD - The leading online storage and file delivery service

**watson** · 20-09-08, 11:47 PM

Best4less

Thanks for the PDF, it is appreciated.

You wouldn't happen to know the type number for IC902 in the SMPS would you? This IC has blown its guts out and the type number is not identified in the PDF cct.

Watson

**best4less** · 21-09-08, 12:05 AM

Go figure they don't mention it,you will have to phone LG up

**watson** · 21-09-08, 06:20 PM

Thanks Mate

**watson** · 22-09-08, 11:00 PM

B4L

FYI

Got on to LG today & guess what - they don't have a specific part number for IC902 either. I have had to order the specific LG device for this part at $27 delivered to WA which is a gotcha for a PWM IC but this is probably $15 for postage so it aint too bad.

Watson

**best4less** · 22-09-08, 11:04 PM

Well $27 is a win could have been a lot worse

**iwacelect** · 23-09-08, 09:03 AM

did you check watson... you may have got the supply complete for $35-40... dunno, but for the extra $8-13 i would rather change the whole thing... they're not as reliable as you might like them to be, and i wouldn't want that item bouncing its way back every 2 months...IMO

**iwacelect** · 23-09-08, 09:09 AM

just think back to DAT2WHIFTies or any of the LH6*** series amps and look at the power reg circuits, someone in korea thought might be a good idea, the 5v rail needs 1.8amps..... i know ...we'll just PARALLEL 2 7805 together that'll fix it CHEAP..... and as we all know you JUST CANT DO THAT. the first one to regulate will GLOW before the next one kicks in, and when it passes away then we figure out why... it's not REALLY there for paralleling the nearly 2 amps... it's a backup to kick in when the first one blows!!!!!

**watson** · 24-09-08, 06:19 PM

iwacelect
No I didn't check on the price for a replacement board - not a bad idea if the replacement PWM IC blows its guts out again.
All associated caps, diodes and trannies are ok and this just looks like plain IC failure.

Will let you know when the part arrives.

Watson

**watson** · 10-10-08, 11:56 AM

Well the PWP IC finally arrived after two weeks courtesy of Aust Post contractor Greyhound Bus. Two trips to Broome got in the way of fitting the replacement IC but all is now working ok.
Watson

18-09-08, 04:05 PM	#1 (permalink)
watson Junior Member iTrader: (0) Join Date: May 2008 Posts: 10 Spent time on board: 5:58:46	Power supply schematic for LG DA-5630A req Guys If anyone has a schematic for this surround sound beast a copy would be appreciated. Thanks Watson

18-09-08, 04:50 PM	#2 (permalink)
best4less I'am Not a Bloody Joke iTrader: (8) Join Date: Jan 2008 Location: Australia Posts: 2,526 Spent time on board: 1 Month, 3 Weeks, 2 Days and 12:11:20	Whats the problem with it ??? __________________ Please wipe your feet before walking all over me

18-09-08, 10:40 PM	#4 (permalink)
best4less I'am Not a Bloody Joke iTrader: (8) Join Date: Jan 2008 Location: Australia Posts: 2,526 Spent time on board: 1 Month, 3 Weeks, 2 Days and 12:11:20	whats the easiest way to get a jepg from a PDF doc ???? __________________ Please wipe your feet before walking all over me

18-09-08, 11:01 PM	#5 (permalink)
best4less I'am Not a Bloody Joke iTrader: (8) Join Date: Jan 2008 Location: Australia Posts: 2,526 Spent time on board: 1 Month, 3 Weeks, 2 Days and 12:11:20	I found this link on another site really truely MEGAUPLOAD - The leading online storage and file delivery service __________________ Please wipe your feet before walking all over me

21-09-08, 12:05 AM	#7 (permalink)
best4less I'am Not a Bloody Joke iTrader: (8) Join Date: Jan 2008 Location: Australia Posts: 2,526 Spent time on board: 1 Month, 3 Weeks, 2 Days and 12:11:20	Go figure they don't mention it,you will have to phone LG up __________________ Please wipe your feet before walking all over me

18-09-08, 10:31 PM	#3 (permalink)
wallaroo Senior Member iTrader: (0) Join Date: Jan 2008 Location: Raymond Terrace Posts: 100 Spent time on board: 1 Day and 6:57:35	Model # doesn't come up on LG service website. Double check it??????

20-09-08, 11:47 PM	#6 (permalink)
watson Junior Member iTrader: (0) Join Date: May 2008 Posts: 10 Spent time on board: 5:58:46	Best4less Thanks for the PDF, it is appreciated. You wouldn't happen to know the type number for IC902 in the SMPS would you? This IC has blown its guts out and the type number is not identified in the PDF cct. Watson

21-09-08, 06:20 PM	#8 (permalink)
watson Junior Member iTrader: (0) Join Date: May 2008 Posts: 10 Spent time on board: 5:58:46	Thanks Mate

22-09-08, 11:00 PM	#9 (permalink)
watson Junior Member iTrader: (0) Join Date: May 2008 Posts: 10 Spent time on board: 5:58:46	B4L FYI Got on to LG today & guess what - they don't have a specific part number for IC902 either. I have had to order the specific LG device for this part at $27 delivered to WA which is a gotcha for a PWM IC but this is probably $15 for postage so it aint too bad. Watson

22-09-08, 11:04 PM	#10 (permalink)
best4less I'am Not a Bloody Joke iTrader: (8) Join Date: Jan 2008 Location: Australia Posts: 2,526 Spent time on board: 1 Month, 3 Weeks, 2 Days and 12:11:20	Well $27 is a win could have been a lot worse __________________ Please wipe your feet before walking all over me

23-09-08, 09:03 AM	#11 (permalink)
iwacelect Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 314 Spent time on board: 5 Days and 13:40:41	did you check watson... you may have got the supply complete for $35-40... dunno, but for the extra $8-13 i would rather change the whole thing... they're not as reliable as you might like them to be, and i wouldn't want that item bouncing its way back every 2 months...IMO __________________ When I explained to the guy what avatar I wanted, that wasn't what I meant!

23-09-08, 09:09 AM	#12 (permalink)
iwacelect Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 314 Spent time on board: 5 Days and 13:40:41	just think back to DAT2WHIFTies or any of the LH6* series amps and look at the power reg circuits, someone in korea thought might be a good idea, the 5v rail needs 1.8amps..... i know ...we'll just PARALLEL 2 7805 together that'll fix it CHEAP..... and as we all know you JUST CANT DO THAT. the first one to regulate will GLOW before the next one kicks in, and when it passes away then we figure out why... it's not REALLY there for paralleling the nearly 2 amps... it's a backup to kick in when the first one blows!!!!! __________________ When I explained to the guy what avatar I wanted, that wasn't** what I meant!

24-09-08, 06:19 PM	#13 (permalink)
watson Junior Member iTrader: (0) Join Date: May 2008 Posts: 10 Spent time on board: 5:58:46	iwacelect No I didn't check on the price for a replacement board - not a bad idea if the replacement PWM IC blows its guts out again. All associated caps, diodes and trannies are ok and this just looks like plain IC failure. Will let you know when the part arrives. Watson

10-10-08, 11:56 AM	#14 (permalink)
watson Junior Member iTrader: (0) Join Date: May 2008 Posts: 10 Spent time on board: 5:58:46	Well the PWP IC finally arrived after two weeks courtesy of Aust Post contractor Greyhound Bus. Two trips to Broome got in the way of fitting the replacement IC but all is now working ok. Watson

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