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!

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Wednesday 13 February 2019

SONY KV-32FS320_ KV-27FS320 _ WIRING DIAGRAM_SERVICE HELP

Stopping the Standby/Timer LED flash

Turn Off the Power switch on the TV main unit or unplug the power cord from the AC outlet.

SELF-DIAGNOSTIC SCREEN DISPLAY

For errors with symptoms such as 'power sometimes shuts off' or 'screen sometimes go out' that cannot be confirmed, it is possible to bring up the past occurrences of the failure on the screen for confirmation.

TO BRING UP SCREEN TEST

In Standby Mode, press buttons on the remote control sequentially, in rapid succession, as shown below
{ Display => Channel-5 => Sound Volume ( -- ) => Power On }
Self diagnosis will be displayed

===========================

SELF DIAGNOSIS

2: +B OCP 0

3: +b OVP 0

4: VSTOP 0

5: AKB 1

9: ZCD 0

10: 9VON 0

101: WDT 0

Serial: xxxxxxx

Model: xxxxxxxx

==========================

HANDLING SELF DIAGNOSTIC DISPLAY

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self diagnostics screen during repairs. After all repair has been completed, clear the result display to "0".

CLEARING THE RESULT DISPLAY

To clear the result display to "0", press buttons on the remote control sequentially when the diagnostic screen is displayed.
{ Channel-8 => Enter }

QUITTING THE SELF DIAGNOSTIC SCREEN

To quit the entire self diagnostic screen, turn Off the Power Switch on the remote control or on the Main Unit.

PCB LOCATIONS

DISASSEMBLY

Remove screws marked and pull out the back cover.

Chassis Assembly Removal

Service Position

APPLICABLE TO: KV 27FS320_27FS120_32FS120_32FS320_34FS120_36FS120_36FS320_38FS120 - MODELS.

SELF DIAGNOSTIC FUNCTION [Standby/Power LED blinking codes]

When an error occurs, the Standby/Timer LED will flash a set number of times to indicate the possible cause of problem. If there is more than one error, the LED will identify the first of the problem areas.
Results for all the following diagnostic items are displayed on the screen. No error occurred the screen displays a "0".

Diagnostic item	Lamp flashes	Diagnostic result	Probable cause location	Detected symptoms
Power does not turn on	Does not light	-----------	# Power cord is not plugged in. # Fuse is burned out [F601]. {A board}	# Power does not come on. # No power is supplied to the TV. # AC power supply is faulty.
+B over current protection (OVP)	2 times	2:1 or 2:0	H.OUT [Q502] is shorted. {A board}. # IC702 is shorted {C board}	# Power does not come on. # Load on power line is shorted.
I-Port	4 times	4:1 or 4:0	# +13V is not supplied {A board}. # IC561 faulty {A board}	# Has entered standby state after horizontal raster. # Vertical deflection pulse is stopped. # Power line is shorted or power supply is stopped.
IK (AKB}	5 times	5:1 or 5:0	# IC001 is faulty {M board}. # Screen (G2) is improperly adjusted.	# No raster is generated. # CRT cathode current detection reference pulse output is small.

* If a +B over current is detected, stoppage of vertical deflection is detected simultaneously. The symptom that is diagnosed first by the microcomputer is displayed on the screen.

Stopping the Standby/Power LED Flash

Turn Off the Power switch on the TV main unit or unplug the power cord from the AC outlet to stop it from flashing.

DISASSEMBLY

KV-27FS320 IS PICTURED