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!

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Monday 11 March 2019

SONY KDL- 37W5500 SERVICE MODE AND POWER SUPPLY CIRCUIT

SONY KDL- 37W5500 SERVICE MODE AND POWER SUPPLY CIRCUIT


SONY KDL - 37W5500

SERVICE MODE AND POWER SUPPLY CIRCUIT

Self Diagnostic Screen Display

SELF DIAGNOSTIC SOFTWARE
The identification of errors within the EX2L chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be displayed through the LED (Series of flashes which must be counted).
LED Error Codes and Descriptions
LED Flashes
Error Description
Error (Comp ref)
02
main Power Error
Pwr_Err
05
DC_Alert3
DC_Alt
06
Backlight Error
Bck_Lgt
07
Thermal Error
Thm_Err
08
Audio Error
Aud_Err
10
Digital FE/BE Error
Dig_Err
12
HFr Error (T-Con)
Hfr_Err
13
Balancer Error
Bal_Err
14
T-Con Error
Tcn_Err














To bring up the self diagnostic screen display
In standby mode, press the following buttons on the remote commander sequentially in rapid sucession as shown below:
ON SCREEN DISPLAY > CH 5 > VOLUME -- > POWER ON
How to enter the Service Mode
Service adjustments to this model can be performed using the supplied Remote Commander RM-ED016.
1. Turn on the power to the TV set and enter into the stand-by mode.
2. Press the following sequence of buttons on the Remote Commander.
ON SCREEN DISPLAY > CH 5 > VOLUME + > POWER ON

3. The TVM menu appears on the screen
Note : After carrying out the service adjustments, to prevent the customer accessing the ‘Service Menu’ switch the TV set OFF and then ON.
POWER SUPPLY CIRCUIT 


CLICK ON THE IMAGE TO ZOOM IN
Changing TVM Data Settings
1. Press “2 / 5” on the remote commander to select (up / down) category.
2. Press “1 / 4” on the remote commander to select (up / down) item.
3. Press “3 / 6” on the remote commander to select (up / down) data .
Writing TVM Data
1.Press “Mute” on the remote commander. The word “SERVICE” changes to “WRITE”
2.Press “0” on the remote commander. The word “WRITE” changes to red. This indicates writing is in progess.
3. When red “WRITE” changes to green “SERVICE”. This indicates writing is complete.

3 DIGIT UNIVERSAL REMOTE REMOTE CODES FOR SONY TV
006, 301, 005, 446, 412, 393, 375, 360, 325, 255, 203, 185, 174, 058, 003
Posted By: FRANK at 03:46
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