Leema Acoustics Powered Subwoofer SPLX Series - Schematic?

[tiefbassuebertr]

Who can upload the schematic diagram from the plate amplifier (PCP-No E162886) of this model ?
Identical with Rythmik Audio Subwoofer Amp.

The driver comes from ISO acoustics (Model 13BH-10024SA)
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History of Leema - go to
Leema Acoustics – Alex Giese GmbH
Currently there are products in other kind available:
Leema Electro Acoustics
first time online 2002:
Wayback Machine

 

[Baldin]

Is it not working? / What is not working?

Seems like an ordinary class AB amp with dual output transistors

 

[tiefbassuebertr]

Not hard to find failure.
No special circuit (only ordinary topology) and no special parts.
Creating own circuit drawing and perform repair is an easy task for me.
Nevertheless I want to have genuine schematic for a friend (for better sales opportunities).

 

[Papi3005]

Hello from the UK,

Sorry to trouble you, but have you managed to get the schematic diagram for this board? I have the same board in a Monitor Audio RS12 subwoofer, and having that information would help me understand how to repair it.

Thank you!

 

[metube]

Your image helped me identify a resistor that blew thanks!!

If anyone has the schematic that would be nice!!

I have an Anthony Gallo MPS-150 with the same board.

 

[tiefbassuebertr]

Hello from the UK,

Sorry to trouble you, but have you managed to get the schematic diagram for this board? I have the same board in a Monitor Audio RS12 subwoofer, and having that information would help me understand how to repair it.

Thank you!

Looking at this imade brought back memories of this Class-D plate power amplifier under

Thread 'DS-15 Class-D Modul with much Trouble and used in a lot of Models from Harman//JBL'

2016-03-07 11:35 am

For this modul (PCB card naming "104-DS15000V-E") - go to
DS-15 104-DS15000V-E Digital amplifier module on 100surplus.com
and
Harman Kardon JB?L Infinity Subwoofer PCB Card 051 B00012A E 104 DS15000V E | eBay
I want the name of manufacturer, a schematic diagram and the reason for a lot of trouble in some subwoofer-models so as the right modification steps to get more reliability.
In follow subwoofer modules, which I know, this class-d card is in use
1) Harman Sub-TS11
2) JBL CSS10
3) JBL Sub-160
3) Harman TS2BQ
Follow German threads mentioned the trouble with it:
Heco Sub...

• tiefbassuebertr
• Replies: 30
• Forum: Class D

which was also very vulnerable and was unfortunately used in various subwoofer brands and models
Absolutely short-lived due to faulty design and/or inferior component quality.
When I looking for powered subs in used condition, I still prefer class AB and normal 50/60Hz transformer like this one under

M

Thread 'Hypex HS200 problem'

2005-02-27 9:16 pm

I recently bought a 2nd hand Hypex HS200 with a Shiva III to build a subwoofer (http://matthew.augier.info/index.php?album=/DIY/STS_II) from a guy who I trust to be honest. Got to the stage today where I wanted to test, connected it all-together and nothing. Everything is connected as it should be (green euroblock + to shiva+>+ and same with - side. But not a bean out of it. When the panel powers on in standby mode the light is yellow, and when sub sounds cut in it goes green as expected. So I tried another driver (8-ohm direct connect bsb-12) still nothing, which makes me think...

• Mat-d-rat
• Replies: 4
• Forum: Subwoofers

and no Class D / SMPS