REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 6 February 2019

HARMAN KARDON SB30 SOUNDBAR - ACTIVE SOUNDBAR WITH WIRELESS SUBWOOFER - SCHEMATIC

harman kardon SB30 Soundbar - Active Soundbar with wireless subwoofer - Schematic

harman/kardon SB 30/230 Multichannel active soundbar speaker system – Circuit Diagram
SB 30 CNTR Soundbar
Amplifier power: 40 watts x 4; 10 watts x 7
High-frequency transducers: Seven x 1" (25mm) domes
Low-frequency transducers: Six x 2" (51mm) cones
SB 30 Subwoofer
Amplifier power: 100 watts
Frequency response: 40Hz – 160Hz
Low-frequency transducer: 8" (200mm) down-firing cone.
A video-shielded soundbar speaker (the SB 30 CNTR) that features 13 speaker elements, 11 amplifier channels and a triple-core digital signal processor.
An 8-inch (200mm), 100-watt wireless powered subwoofer (the SB 30 SUB).
An IR remote control.
Wall-mount brackets for the soundbar.
An optical digital audio cable for connecting the system directly to your cable/ satellite tuner or disc player.
A 6-1/2-foot (2m) stereo audio cable for connecting the system directly to your TV’s audio output.
A 3-foot (1.8m) AC power cord for the SB 30 CNTR soundbar.
Circuit Diagram (Schematic) [Click on the schematics to zoom in]
The SB 30 CNTR soundbar contains six 2-inch woofers and seven 1-inch tweeters, powered by four 40-watt amplifiers and seven 10-watt amplifiers. It features a powerful triple-core DSP (digital signal processor) with two HARMAN-exclusive surround modes (Virtual and HARMAN Wave – patent pending) that utilize different combinations of the soundbar’s 13 transducers and 11 amplifier channels to create an astonishingly realistic surround-sound experience in any size room and for listeners at any position in the room, without needing any extra speakers or wires.
You can set the soundbar on a table in front of your TV, or, if you have a wall-mounted flat-panel TV, you can use the supplied brackets to mount the soundbar on the wall along with your flat-panel TV.
The SB 30 SUB subwoofer receives its signal from the SB 30 CNTR soundbar via wireless technology, so you can place it anywhere in your room without having to run any wires between it and the soundbar. Its 8-inch (200mm) woofer and built-in 100-watt amplifier deliver the impact and excitement from your favorite movies and video games. Other conveniences include a volume control, a phase switch for fine-tuning bass performance to suit your listening environment, and an efficient switching system that senses the presence of an audio signal and automatically switches the subwoofer on.
Sidney Harman and Bernard Kardon invented the high-fidelity receiver more than 50 years ago. With state-of-the-art features and time-honored circuit designs, the SB 30 system will turn your flat-panel TV into a fun and exciting home theater.
Wireless Code Switches
In the unlikely event that you encounter interference when operating the system, or if you have more than one SB 30 system in operation, you may change the channel at which the wireless system operates. There are four-position Wireless Code switches on both the soundbar and subwoofer. To change the wireless channel, set each of the switches to one of the other three positions. 
IMPORTANT: The switches on the soundbar and the subwoofer must be set to the same position for the wireless system to work.
The subwoofer will automatically turn on when it receives an audio signal from the soundbar, and it will return to the Standby mode when it has received no audio signal for 15 minutes. The subwoofer’s Power LED will turn blue when the subwoofer is on and will turn amber when the subwoofer is in Standby.
Posted By: FRANK at 05:31
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