Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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 !

Friday, 29 March 2019

JBL SB 300 – SB 230 POWERED SOUND BAR SCHEMATIC

JBL SB 300 – SB 230 Powered Sound Bar SCHEMATIC

JBL SB 300 – SB 230 - Powered Sound Bar with Wireless Powered Sub-woofer. Specifications _ Circuit Diagram _ Connection Diagram

SB300 - POWERED SOUNDBAR SPEAKER-Specifications
Low-frequency transducer: Two 2" (51mm) cones per channel, videoshielded
High-frequency transducer: One 1" (25mm) dome per channel, videoshielded
Amplifier power: 30 watts per channel
Audio controls: Volume, surround mode
Connections: Optical digital (TOSLINK™) input, stereo
analog (RCA-type) inputs
Power requirement: 120V – 240V, 50Hz/60Hz, 80W
Power consumption: 1W standby; 80W maximum
Dimensions (H x W x D): 3-5/8" x 45-3/4" x 3"
(92mm x 1162mm x 76mm)
Weight: 5.5 lb (2.5kg)

SB300 SUBWOOFER SPECIFICATIONS
Low-frequency transducer: 8" (200mm) cone, down-firing
Enclosure type: Ported (down-firing)
Amplifier power: 100 watts
Frequency response: 42Hz – 200Hz (–3dB)
Audio controls: Level, phase, cutoff frequency
Connections: LFE input, left and right RCA line-level inputs
Power requirement: 120V – 240V, 50Hz/60Hz, 160W
Power consumption: 1W standby; 160W maximum
Dimensions (H x W x D): 19" x 14-1/4" x 14-1/4"
(483mm x 362mm x 362mm)
Weight: 24.5 lb (11.1kg)

SOURCE CONNECTIONS
analog: Use the supplied stereo audio cable to connect the soundbar’s Source 1 (analog) input to your TV’s stereo audio output. If your TV has two sets of audio output jacks, use the set that has a fixed (not variable) output level. This will let you turn your TV’s speakers all the way off while the TV still supplies a constant audio signal to the soundbar. digital: If your DVD player, cable tuner or satellite tuner has an optical digital output, you can use an optical digital audio cable to connect it to the soundbar’s Source 2 (optical digital) input.

TURNING THE SUB-WOOFER ON & OFF
Set the subwoofer’s Power switch to the “On” position. The subwoofer will automatically attempt to establish pairing with the soundbar (the subwoofer’s LED will flash blue). If pairing is not established within one minute, the subwoofer will enter the Standby mode (its LED will turn amber). If pairing is established, the subwoofer will turn on (its LED will light blue continuously). The subwoofer will remain on for approximately one minute after the soundbar enters the Standby mode, or for approximately 15 minutes after the audio signal ceases.

CIRCUIT DIAGRAMS [Click on the pictures to Magnify]