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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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Tuesday, 5 February 2019

SONY KLV 30HR3 LCD TV – SERVICE MODE – ADJUSTMENTS – SMPS BOARD SCHEMATIC - LED BLINKING CODES

Sony KLV 30HR3 LCD TV – Service mode – adjustments – SMPS board schematic - LED Blinking codes

G2 board (Power) circuit diagram, service mode and adjustments – Sony KLV-30HR3 LED LCD TV: STR-A6169 – MCZ3001UB – 2SK2842-LB180(FET)
Error codes [LED blinking codes]
The identification of errors within the WA1 chassis is triggered in one of two ways :- 
1: Busy 
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).
Signal adjustment
Service adjustments to this model can be performed using the supplied remote Commander RM-Y1108
How to enter into the Service Mode
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.
‘TT—’ will appear in the upper right corner of the screen.  Other status information will also be displayed.
3. Press ‘MENU’ on the remote commander to obtain the following menu on the screen.
4. Move to the corresponding adjustment item using the up or down arrow buttons on the Remote Commander.
5. Press the right arrow button to enter into the required menu item.
6. Press the ‘Menu’ button on the Remote Commander to quit the Service Mode when all adjustments have been completed.
Note : After carrying out the service adjustments, to prevent the customer accessing the ‘Service Menu’ switch the TV set OFF and then ON.
PAL auto adjustment (CVBS)
1. Select AV1 and input PAL signal.
2. Change the TV to Personal Mode and set the following registers.
Contrast - 90
Brightness - 50
Colour - 50
3. Set the TV in Service Mode (See above) and send “TT51” command.
PAL auto adjustment (RGB)
1. Select AV1 and input RGB signal.
2. Change the TV to Personal Mode and set the following registers.
Contrast - 90
Brightness - 50
Colour - 50
3. Set the TV in Service Mode (See above) and send “TT52” command.
SMPS (G2) board schematic and voltage chart
Voltage chart
PWB - Component and foil sides
White Balance adjustment (H/L)
Select AV1.
2. Change the TV to Personal Mode and set the following registers.
Contrast - Max
Brightness - 50
Colour - 50
Backlight - Max
3. Input PAL CVBS 70 IRE Full Field Signal to AV1.
4. Enter the ‘SERVICE MENU’ using the cursor keys on the remote commander.
5. Adjust Highlight registers:
NORMAL_PAL_RD (R Drive)
NORMAL_PAL_BD (B Drive)
White Balance adjustment (C/O)
1. Select AV1.
2. Change the TV to Personal Mode and set the following registers.
Contrast - Max
Brightness - 50
Colour - 50
Backlight - Max
3. Input PAL CVBS 20 IRE Full Field Signal to AV1.
4. Enter the ‘SERVICE MENU’ using the cursor keys on the remote commander.
5. Adjust CutOff registers:
NORMAL_PAL_RC (R cutoff)
NORMAL_PAL_BC (B cutoff)

Posted By: FRANK at 01:19
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