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 !

Saturday, 16 February 2019

SONY KDSR50XBR1 KDSR60XBR1 SXRD TV BLINKING CODES - TROUBLESHOOTING

SONY KDSR50XBR1 KDSR60XBR1 SXRD TV BLINKING CODES - TROUBLESHOOTING



LOW B+ ERROR [6X] FLASH PATTERN [6 blinks of standby light prior to shut-down}
     In most cases, a defect in the Power Supply Output (G-Board) causes this error, particularly, a missing  Sub 11V output.  However, theoretically a defective TV microprocessor output can also cause this error, and therefore, consider this component when troubleshooting.
     Firstly, eliminate the TV microprocessor as suspected for failure.  Check for the presence of the AC Relay voltage at CN6502/pin-31 on the G-Board.  This is the switched voltage from the TV microprocessor to turn On the Main AC relay and in turn main Power Supply.  The AC relay voltage should switch to (4.8V) immediately after the Power On button is pressed.
     If the AC relay voltage is missing, this indicates a failure in the TV microprocessor circuit on the ASU-Board, therefore, replace the ASU | DSU assembly.
     If AC relay is present the next step is to verify the Sub-11V, and regulated 5V main Power Supply Outputs.
     Check the Sub-11V at CN6502/pins 9 through pin 15.
     Check for regulated 5V at CN6502/pin-6.
     At this point in the process the AC power is applied and AC relay voltage has been received, and therefore, all Main Power Supply Secondary Voltages should be present.  If the Sub-11V and / or regulated 5V is missing, the Main Power Supply Board is defective, and the G-Board must be replaced.
     If the Sub-11V and regulated 5V  are present and the unit still shut down, and show 6 blinks of standby/power LED, then the defect is on the ASU-Board.  The most likely suspect for failure is the D5V regulator on the ASU-board.  In this case, replace the ASU/DSU assembly.