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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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 !

Showing posts with label SERVICE. Show all posts
Showing posts with label SERVICE. Show all posts

Wednesday, 30 December 2020

PANASONIC TC-L32E5 HOW TO ENTER THE SERVICE MODE, LED BLINKING CODES, POWER BOARD ELECTRIC SCHEMATIC DIAGRAM

 

Chassis: LA35  Destination: USA.  AC 110-127 V, 60 Hz

1. Do not press panel surface to avoid blue spot on the panel display.

2. Do not use hard cloth or rub the surface too hard. This may cause scratches on the surface.

3. Take care not to subject the TV’s surface to water or detergent. Any liquid (including pets urine) if enters the product could lead to TV failure.

4. Take care not to subject the surface to insect repellent, solvent, thiner or other voiltile substances. This may degrade surface quality or cause peeling of the paint.

5. The surface of the display panel is specially treated and may be easily damaged. Take care not to tap or scratch with your fingernail or other hard objects.

Service Mode:  How to enter into Service Mode

While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.



Contents of adjustment mode

 Value is shown as a hexadecimal number.

 Preset value differs depending on models.

 After entering the adjustment mode, take note of the value in each item before starting adjustment.


How to exit

Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

SRV-TOOL:  How to access

1. Select [SRV-TOOL] in Service Mode.

2. Press [OK] button on the remote control.


Display of SOS History

SOS History (Number of LED blinking ) indication.

From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.

This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory shipment setting].

POWER ON TIME/COUNT

Note : To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.

Time : Cumulative power on time, indicated hour : minute by decimal

Count : Number of ON times by decimal

Note : This indication will not be cleared by either of the self-checks or any other command.

Exit

Disconnect the AC cord from wall outlet.

Self Check Mode

1. Press the ‘MENU’ button (on the remote control) and the ‘VOL DOWN’ button on the LCD panel.

2. Press ON/OFF button on the panel to Exit.

Hotel Mode Adjustment

1. Press the ‘VOLUME DOWN’ button on the TV panel and simultaneously press the INPUT button on the remote control 3 times to enter Hotel Mode.

2. Set Hotel mode ‘on/off’, then press ‘EXIT’ to come out.

Hotel Mode

1. Purpose

Restrict a function for hotels.

2. Access command to the Hotel mode setup menu.

In order to display the Hotel mode setup menu, please enter the following command (within 2 second). [TV] : Vol [Down] + [REMOTE] : INPUT (3 times).

Then, the Hotel mode setup menu is displayed.


3. To exit the Hotel mode setup menu

Disconnect AC power cord from wall outlet.

4. Explain the Hotel mode setup menu

Troubleshooting Guide

Use the self-check function to test the unit.

1. Checking the IIC bus lines

2. Power LED Blinking timing

Check of the IIC bus lines:  How to access

Self-check indication only:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.

Self-check indication and forced to factory shipment setting:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.

Exit

Disconnect the AC cord from wall outlet.

Screen display

Power LED Blinking timing chart

1. Subject

Information of LED Flashing timing chart.

2. Contents

When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:

No Power

First check point

There are following 2 states of No Power indication by power LED.

1. No lit

2. Red is lit then turns red blinking a few seconds later.

Voltage chart of A-Board and P-Board

Power board PWB

P-Board Schematic Diagram [TNPA5596CP]


Monday, 30 November 2020

LG WD-1247 BD WASHING MACHINE HOW TO DISASSEMBLE - EXPLODED VIEW SCHEMATIC

 


TEST OPERATION



WIRING DIAGRAM


Disassemble procedure

Unscrew 2 screws on the back of the top plate.
Pull the top plate backward and upward as shown.

Pull out the drawer and unscrew 2 screws.
Lift the side the Control Panel Assembly and pull it out

Push out PANEL ASSEMBLY,CONTROL after Push the hook below

Unscrew the 10 screws from the Control Panel Assembly.
Disassemble the Display PWB Assembly.


Disconnect connector from the wiring.

Two screws are unscrewed.

Push the hook of between BASE,CABINET and PWB ASSEMBLY below as shown.
Pull the PWB assembly (Main) to arrow direction.


Inlet valve removal

Disassemble the top plate assembly.
Pull out the drawer.
Push out the DISPENSER ASSEMBLY after unscrew 2 screws.

Unscrew the nut at the lower part of the dispenser.

Disassemble the 3 or 4 connectors from the valves.

Red Housing(BK/WH-YL/BK)
NA Housing(WH/BL-BK)
Blue Housing(GY/WH-BK)
Red Housing(BL/RD-BK)

Unscrew 2 or 4 screws from the back of the cabinet.

Unscrew 2 or 4 screws from the back of the cabinet.


Cabinet cover removal

Unscrew the 2 screws from the lower of the DECO PANEL.

Unscrew the 4 screws from the back of the DECO PANEL

Pull out the DECO PANEL

Unscrew the 4 screws from upper of the cabinet cover.
Unscrew the screw from filter cover.

Put a flat ( - ) screwdriver or putty knife into the both sides of the filter cover, and pull it out.

Unscrew the screw from the lower side of the cabinet cover.


Open the door.
Disassemble the clamp assembly.

Tilt the cabinet cover.
Disconnect the door switch connector.

NOTE: When assembling the CABINET COVER, connect the connector.

Lift and separate the cabinet cover.

Disassemble the clamp assembly.
Disassemble the Gasket.


Open the door.
Remove the two screws from the Hinge.
When removing the Door Assembly, it is necessary to hold the break is inner of the cabinet cover.

[Be careful: The door is heavy.]

Open the door and disassemble the CLAMP ASSEMBLY.
Unscrew the 2 screws.

NOTE: Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY.


Disassemble the cabinet cover

Separate the pump hose, the bellows and the circulation hose assembly from the pump assembly.
Disassemble the pump assembly in arrow direction.

Separate the pump hose, the bellows and the circulation hose assembly from the pump assembly.
Disassemble the pump assembly in arrow direction.

CAUTION
• When assembling the heater, insert the heater into the heater clip on the bottom of the tub and check the position of wire color.
• Tighten the fastening nut so the heater is secure.

Disassemble the cabinet cover.
Unplug the white connector from the thermistor.
Pull it out by holding the bracket of the thermistor.


When foreign object is stuck between drum and tub

Disassemble the cabinet cover.
Separate the heater from the tub.
Remove any foreign objects (wire, coin, etc.) by inserting a long bar in the opening.

Disassemble the back cover.
Remove the bolt.
Pull out the Rotor.

Unscrew the 2 screws from the tub bracket.
Remove the 6 bolts on the stator.
Unplug the 2 connectors from the stator.

Disassemble the damper hinges from the tub and base.
Separate the dampers.

NOTE:  Once removed, replace the damper with new one.


To check out the fault diagnosis of TSG, in case of removing the water inside, you can pull out the plug and let the water drain away.

Be cautious in case of the TSG is hot temperature.

Remove the housing coupled the TSG (Heater, Water level frequency-sensor, Thermistor)

Taking out the screw of the TSG and Body Frame.


Taking out the screws of Body Frame (2EA)

Separate the hoses from the TSG.

Remove the Body Frame and then, separate the TSG from the washer.


Exploded view




Tuesday, 24 November 2020

LG WD - 1247 RD WASHING MACHINE - ERROR CODES, TROUBLESHOOTING, FAULT CHECKING / DIAGNOSIS, WIRING DIAGRAM AND PROGRAM CHART


CHILD LOCK

Use this option to prevent unwanted use of the washer. Press and hold the Wash and Rinse button for 3 seconds to lock/unlock control.

When Child lock is set, CHILD LOCK lights and all buttons are disabled except the Power button. You can lock the washer while it is operating.

Test operation

SERVICE CHECKING

Be careful of electric shock or disconnecting the parts while trouble shooting.

Voltage of each terminal is 220-240V~ and DC while applying an electric current.

TEST MODE

Pressing Rinse, and Spin button simultaneously.

Press the Power button, while the above condition.

Press the Start/Pause button as follows.


HOW TO KNOW THE WATER LEVEL FREQUENCY and HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION.

Temperature of each thermistor at operating condition

Thermistor in tub : Press the [Temp.] button.

 Thermistor in dry duct : Press the [Turbo Steam] button.

WIRING DIAGRAM and PROGRAM CHART

ERROR DISPLAY

If you press the Start/Pause button in error condition, any error except “PE” will disappear and the machine will change into pause status.

In case of  [PE, TE, dHE] if the error is not resolved within 20 sec., and in case of other errors, if the error is not resolved within 4 min., power will be turned off automatically and the error only will be blinked. But in case of  , [FE] power will not be turned off.

FAULT DIAGNOSIS AND TROUBLE SHOOTING

Be careful of electric shock or disconnecting the parts while trouble shooting.

First of all, check the connection of each part terminal with wiring diagram.

If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly.







 

SAMSUNG LE27S71B TFT LCD TV SERVICE MODE ADJUSTMENTS, WHITE BALANCE SERVICE ADJUSTMENT, FIRMWARE UPDATE PROCEDURE

 FOR Models: LE32S71B, LE37S71B, LE37S61B, LE40S71B, LE40S61B,   Chassis: GSM27SE, GSM32SE, GSM37SE, GSM37HEU, GSM40SE And GSM40SEU

Entering Factory Mode

To enter "Service Mode" Press the remote -control keys in this sequence:

- If you do not have Factory remote – control.

POWER OFF > INFO > MENU > MUTE > POWER ON

If you have Factory remote – control

PICTURE ON > DISPLAY > FACTORY

The buttons are active in the service mode.

Remote - Control Key: Power, Arrow Up, Arrow Down, Arrow Left, Arrow Right, Menu, Enter, Number Key (0~9)

Function - Control Key: Power, CH +, CH -, VOL +, VOL -, Menu, TV/VIDEO (Enter)


Panel Check

Especially for LE26, 32R7**, you have to check Panel Maker Because of different adjustments as follows.

First of all, check the label rating.

Panel BOM (Bill of material): BN07-00289A

Connector between Panel and Power Unit

: BN39-00603M (300mm)

Option Byte

1. Gamma "AUO"

2. Panel Option "AUO"

If Panel Mark is "S" or not printed. Set the factory mode indicating as follows.

Panel BOM (Bill of material) : BN07-00247A

Connector between Panel and Power Unit

: BN39-00603M (300mm)

 Option Byte

1. Gamma "AMLCD"

2. Panel Option "AMLCD_INT"

If Panel Mark is "C”, Set the Factory mode indicating as follows.

Panel BOM (Bill of Material) : BN07-00207A

Connector between Panel and Power Unit: BN39-00659A (200mm)

 Option Byte

1. Gamma “CMO”

2. Panel Option “CMO”

Others are same shown below.

Factory Data

1. Calibration

2. Option Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. I2C Check

10. W/B MOVIE

11. Checksum

12. Reset

13. Spread Spectrum

T-MILMPEU-1006 (Main Micom Ver)

T-MILMPEUS-1002 (Sub Micom Ver)

Month - Day - Year - Hour - Min. - Sec.

Calibration

1) AV Calibration

2) DTV Calibration

3) PC Calibration.

Alignments and Adjustments

How to Update Flash ROM

1. Install the Flash Downloader

Connect Set (Service Jack) and Jig Cable to execute Program Update.

2. Flash Downloader program update

-Before turning on the set, Click "connect “which is under of OSD Screen.

-Turn on the Set.

White Balance – Calibration

If picture color is wrong, do calibration first.

Equipment: CA210, Patten: chess pattern

Execute calibration in Factory Mode

Source AV: PAL composite, Component: 1280*720-60Hz

PC: 1024*768-60Hz.

Sub brightness and R-G-B Offset controls low light region

Sub contrast and R-G-B Gain controls high light region

Source AV : PAL composite, Component : 1280*720-60Hz

HDMI [DVI] : 1280*720-60Hz

[Test Pattern: MSPG-945 Series Pattern #16]

Color temperature

1500K +or -500, -6 ~-20 MPCD

Color coordinate

H-L : 267-263 +or - 2 35.0 Ft + or - 2.0Ft

L-L : 270-260 + or - 3 1.5 Ft + or - 0.2Ft

Toshiba Patten

Conditions for Measurement

1. On the basis of Toshiba ABL pattern: High Light level (57 IRE)

- INPUT SIGNAL GENERATOR: MSPG-925LTH

* Mode NO 2: 744X484@60 Hz

NO 6: 1280X720@60 Hz

NO 21: 1024X768@60 Hz

* Pattern NO 36: 16 Color Pattern

NO 16: Toshiba ABL Pattern

2. Optical measuring device: CA210 (FL)

Please use the MSPG-925 LTH generator for model LE26M51B/LE32M51B/LE40M51B/LE46M51B.

Method of Adjustment

1. Adjust the white balance of AV, Component and DVI Modes. (AV > Component)

a) Set the input to the mode in which the adjustment will be made (RF > DTV > PC > DVI).

* Input signal - VIDEO Mode: Model #2 (744*484 Mode), Pattern #16

- DTV, DVI Mode: Model #6 (1280*720 Mode), Pattern #16

- HDMI Mode: Model #6(1280*720 Mode), Pattern #16.

b) Enter factory color control, confirm the data.

c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode) [Given above]

- Adjust sub - Brightness to set the 'Y' value.

- Adjust red offset ('x') and blue offset ('y') to the color coordinates.

d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust red gain ('x') and blue gain ('y') to the color coordinates.

[Do not adjust the green gain and sub-contrast (Y) data.]

Adjust the high light. (Refer to table 1, 2 in adjustment position by mode) [Given above]

- Adjust red gain ('x') and blue gain ('y') to the color coordinates.

* Do not adjust the green gain and sub-contrast (Y) data.