Monday, 4 January 2021

How to disassemble LG WD-1247 BD washing machine-Exploded view

 

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





Sunday, 3 January 2021

LG WD-1247 BD WASHING MACHINE-Error codes, troubleshooting, fault diagnosis, wiring 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.








Tuesday, 29 December 2020

Vestel 17IPS62-R4 LED TV Power Supply and Philco PH32M LED TV SMPS schematics

 

Attention to this Vestel schematic;  it seems to me that most of them are unfinished versions. 

The value of many components has nothing to do with what's on the board. 

For example one of the several errors R57, R58, R98 (3 resistors in series) in the scheme has 10R on the board has 3 X 39K, if the value of the schematic is placed,  it will make fire. It is therefore necessary to be very careful with Vestel schemes.

Used with: Toshiba 32W3863DB, Turbo-X TXV 3230D, Linsar 32LED1600, Telefunken TE3228, Telefunken TE32SMB35Z2D, Finlux 32-FFA-5615, Hitachi 32HB6J41U, JVC LY-39C770, Panasonic TX32DW334, Toshiba 32W1333DB, 32D1334DB, Hitachi 32HB6J51U and many other brand models.

Vestel 17IPS62-R4 LED TV Power Supply


SCHEMATIC PART TO BE NOTED:


Philco PH32M LED TV SMPS schematic


Sunday, 20 December 2020

How to enter the service mode of JVC AV32H20EUS, AV28H20EUS, and AV28H20EUB – FULL DETAILS OF ALL ADJUSTMENTS

 It makes sense to avoid exposure to electrical shock.  While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

Color System:  PAL - SECAM - NTSC (Only in EXT mode)

Stereo System:  A2 (B-G,D-K)/ NICAM (B-G,I,D-K,L)

Teletext System

 FLOF (Fastext)

TOP (German system)

WST (W world Standard system)

Power Input:  220 – 240 V AC, 50Hz

Power consumption:  187W(Max) / 138W(Avg), standby : 2.6W

21-pin Euro connector (SCART socket) : EXT-1 - EXT-2 - EXT-3



[Don't short between the LIVE side ground and ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing.]

REPLACEMENT OF MEMORY ICs

(1) Power off

Switch the power off and unplug the power cord from the outlet.

(2) Replace ICs.

Be sure to use memory ICs written with the initial data values.

(3) Power on

Plug the power cord into the outlet and switch the power on.

(4) Check and set SYSTEM CONSTANT SET :

* It must not adjust without signal.

1) Press the INFORMATION key and the MUTING key of the REMOTE CONTROL UNIT simultaneously.

2) The SERVICE MENU screen of Fig. 1 will be displayed.

3) While the SERVICE MENU is displayed, press the

INFORMATION key and MUTING key simultaneously, and the

SYSTEM CONSTANT SET screen of Fig. 2 will be displayed.

4) Check the setting values of the SYSTEM CONSTANT SET.

 If the value is different, select the setting item with the FUNCTION UP-DOWN key, and set the correct value with the FUNCTION --+ key.

5) Press the MENU key to memorize the setting value.

6) Press the INFORMATION key twice, and return to the normal screen.

(5) Setting of receive channels

Set the receive channel.  For setting, refer to the OPERATING INSTRUCTIONS.

(6) User settings

Check the user setting values of Table 2, and if setting value is different, set the correct value.  For setting, refer to the OPERATING INSTRUCTIONS.

(7) Setting of SERVICE MENU

Verify the setting items of the SERVICE MENU of Table 3, and reset where necessary.  For setting, refer to the SERVICE ADJUSTMENTS.


SERVICE ADJUSTMENTS

NB:  Never touch parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service adjustment.


SERVICE MENU

Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

SERVICE MENU ITEMS

With the SERVICE MENU, various settings (adjustments) can be made, and they are broadly classified in the following items of settings

(Adjustments):

(1) 1. IF・・・・・・・・・・・・・・・・・・・・・・・ This mode adjusts the setting values of the IF circuit.

(2) 2.V/C ・・・・・・・・・・・・・・・・・・・・・・ This mode adjusts the setting values of the VIDEO / CHROMA circuit.

(3) 3.AUDIO・・・・・・・・・・・・・・・・・・・ This mode adjusts the setting values of the multiplic ity SOUND circuit.

(4) 4.DEF ・・・・・・・・・・・・・・・・・・・・・ This mode adjusts the setting values of the DEFLECTION circuit for each aspect mode given below.

FULL (100 or 120Hzi)

PANORAMIC (100 or 120Hzi)

SUBTIT LE (100 or 120Hzi)

COMPRESS (Fixed value) (100 or 120Hzi)

(5) 5.VSM PRESET・・・・・・・・・・・・・ This mode adjusts the initial setting values of COOL, NORMAL and WARM.

(VSM : Video Status Memory)

(1) How to enter SERVICE MENU

Press the “INFORMATION” key and the “MUT ING” key of the REMOTE CONTROL UNIT simultaneously, and the SERVICE MENU screen of will be displayed.

Selection of SUB MENU SCREEN

Press one of keys 15 of the REMOTE CONTROL UNIT and select the SUB MENU SCREEN), form the SERVICE MENU.

SERVICE MENU → SUB MENU

1. IF

2. V - C

3. AUDIO

4. DEF.

5. VSM PRESET

6. STATUS

7. PIP

8. ---

9. SHIPPING (OFF)

0. BUS FREE


1) Method of Setting 1.IF

[VCO] ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ It must not adjust without signal.

1 Key・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ Select 1.IF.

1 Key・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ Select 1.VCO(CW)

Make sure that the arrow position between the ABOVE REF and BELOW REF.

INFORMATION Key・・・・・・・・・・・・・・・・・・・ Return to the SERVICE MENU screen.

Method of setting 2.V/C, 3.AUDIO, 4.DEF and 5.VSM PRESET.

25 Key・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ Select one from 2.V/C, 3.AUDIO, 4.DEF and 5.VSM PRESET.

FUNCTION UP or DOWN Key ・・・・・ Select setting items.

FUNCTION – or +  Key ・・・・・・・・・・・・・ Set (adjust) the setting values of the setting items.

MENU Key ・・・・・・・・・・・・・・・・・・・・・・・・・・・ Memorize the setting value.

(Before storing the setting values in memory, do not press the CH, TV, POWER ON or OFF key - if you do, the values will not be stored in memory.)

INFORMATION Key・・・・・・・・・・・・・・・・・・・ Return to the SERVICE MENU screen.

NB:  3) Do not setting 6.STATUS, 7.PIP, 8.--- , 9.SHIPPING(OFF) & 0.BUS FREE.

(4) Release of SERVICE MENU

1) After completing the setting, return to the SERVICE MENU, then again press the INFORMATION key.

Service adjustments full details












Deflection adjustment

There are 4 aspect modes ( FULL, PANORAMIC, SUBTITLE, COMPRES) of the adjustment ( 1 ) 100Hz i mode, ( 2 ) 120Hz i mode ・・・・・・ depending upon the kind of signals ( vertical frequency 100Hzi / 120Hzi ).

When the 100Hz FULL mode has been established, the setting of other modes will be done automatically.

However, if the picture quality has not been optimized, adjust each mod e again, respectively.

The adjustment using the remote control unit is made on the basis of the initial setting values.

The setting values which adjust the screen to the optimum condition can be different from the initial setting values.






AUDIO CIRCUIT ADJUSTMENT

Do not touch 3. AUDIO adjustment of the SERVICE MENU as it requires no adjustment.

If values had changed for the some reason, set the initial values in the following table.



LG 52LG50FD, 52LG50FD-SA-Service adjustments-service mode entry-white balance adjustment-ADC component 1 RGB adjustment and more

  These adjustments are similar to 42LB7DF Because this is not a hot chassis, it is not necessary to use an isolation transformer. However...