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.

 

WHIRLPOOL MICROWAVE OVEN MT244-1-BLACK – WIRING DIAGRAM, SCHEMATIC, ERROR CODES, EXPLODED VIEW

 

 Before leaving the factory each oven is carefully checked.  It must, however, be installed and used correctly.

Always disconnect the plug from the mains before starting work.

When you have finished servicing an oven before you reconnect it to the mains, make sure that:

- all the internal connections are correct

- the wires are insulated and not touching the door or the cabinet or anything sharp

- all the earth connections are electrically and mechanically sound

- do not modify or anyway interfere with the safety devices built-in to the oven.

Do not operate the oven if the following conditions exist:

- the door does not close firmly against the door support because of the door being warped or the hinges damaged.

- The door trims or seals are damaged.

- If there is any visible damage to the oven.

- if the door does not close properly.

Avoid operating the oven if known components in the interlock system, oven door or microwave generating assembly are known defective. They must be replaced.

Output power 950 W

Grill 900 W

Microwave frequency 2450 MHz

Error codes

Certain fault conditions are indicated by an error code.

The following codes are implemented:

ERR 0:   Convection temperature sensor fault.  Not connected or short circuit.

ERR 1:   Short circuit in the MW relay.

ERR 6:   Weight sensor calibration has not been performed.

ERR 7:   Humidity sensor is defect or has not been connected.

ERR 8:   Impossible to write to E2 PROM.

ERR 9:   Options have not been set.

ERR A:   No wheel detected on weight sensor.

ERR B:   No pulses from the weight sensor or <4267 Hz.

ERR C:   Fuzzy temperature sensor fault. Not 19-41 ˚C.

Exploded view

Schematic diagram

Printed circuit board

Wiring diagram

PHILIPS 40PFT6709 - CHASSIS TPM14.2A SERVICE MODE, OPTIONS SETTINGS, SERVICE ALIGNMENTS, DIAGNOSING ERROR CODES, LED BLINKING CODES AND MORE OTHER

TPM14.2A Chassis

 

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.

The TPM14.2A LA is a new chassis launched in Asia in 2014.
The whole range is covered by SCALER MT5591.
The major deltas versus its predecessor DVB-TC; DVB-TC/T2,
with also multi-media, 3D, Ambilight, WIFI, Smart TV, Light Sensor functionality.
The TPM14.2A LA chassis comes with the following styling:
• series xxPFT6700
• series xxPFT6900
• series xxPUT8500
• series xxPUT8600

Key components of this chassis are:
• SCALER MT5591IVDJ HSBGA-758 TV Processor
• TUNER EUROPE SUT-RE231ZN (DVB-T/C, T2 analogue)
• DEMODULATOR CXD2837ER-T4 VQFN-48
• STA381BWTR 20W VQFN-48 for AUDIO Amplifier
• THGBM5G5A1JBAIR 4GB P-VFBGA153 for EMMC IC

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.
The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number.
By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts.
For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. SN is Lysomice, RJ is Kobierzyce), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2010 week 10 / 2010 week 17). The 6 last digits contain the serial number. 

Board Level Repair (BLR) or Component Level Repair (CLR)
If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level.
If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging

Service Mode.  Service Alignment Mode (SAM)

How to Activate SAM
To activate SAM, use one of the following methods:
• Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “INFO/OK” button. Do not allow the display to time out between entries while keying the sequence.
• Or via ComPair.
After entering SAM, the following items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

Software Identification, Version, and Cluster
The software ID, version, and cluster will be shown in the main menu display of SAM and CSM.
The screen will show: “AAAAB-X.YYY”, where:
• AAAA is the chassis name: QN142A x.yy.
• B is the region indication: E = Europe, A = AP/China, U = NAFTA, L = LATAM.
• X is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 1 - 99 and AA - ZZ.
- If the main version number changes, the new version number is written in the NVM.
- If the main version number changes, the default settings are loaded.
• YYY is the sub version number: this is updated with a minor change (backwards compatible with the previous versions). Numbering will go from 000 - 999.
- If the sub version number changes, the new version number is written in the NVM.
- If the NVM is refreshed, the software identification, version, and cluster will also be written to NVM.

Display Option Code Selection
When after an SSB or display exchange, the display option code is not set properly, it will result in a TV with “no display”.
Therefore, it is required to set this display option code after such a repair.
To do so, press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type.  When the value is accepted and stored in NVM, the set will switch to Stand-by,
to indicate that the process has been completed.
During this algorithm, the NVM-content must be filtered, because several items in the NVM are TV-related and not SSB related (e.g. Model and Prod. S/N). Therefore, “Model” and “Prod. S/N” data is changed into “See Type Plate”. In case a call centre or consumer reads in CSM mode.

How to Navigate
• In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items.
• With the “LEFT/RIGHT” keys, it is possible to:
– (De) activate the selected menu item.
– (De) activate the selected sub menu.
– Change the value of the selected menu item.
• When you press the MENU button once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background).
• Press the following key sequence on the remote control transmitter: “062596” directly followed by the “Home/Menu” button to switch to SDM (do not allow the display to time out between entries while keying the sequence).
How to Store SAM Settings
To store the settings changed in SAM mode (except the RGB Align settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.
How to Exit SAM
Use one of the following methods:
• Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.
• Via a standard RC-transmitter, key in “00” sequence.
Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

How to Activate the Factory mode
To activate the Factory mode, use the following method:
• Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button. Do not allow the display to time out between entries while keying the sequence.
After entering the Factory mode, the following items are displayed,

How to Exit the Factory mode
Use one of the following methods:
• Select EXIT-FACTORY from the menu and press the “OK” button.
Note: When the TV is switched “off” by a power interrupt, or normal switch to “stand-by” while in the factory mode, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

SAM mode and Factory mode overview

How to Copy NVM Data to/from USB

When copying data to and from a USB memory stick, the folder “repair” is used. When inserting an empty USB memory stick, and downloading data to the stick, the TV will create this folder.
When sending data from a USB memory stick to a TV, the intended data must be available in the “repair” folder.
Note that when copying EDID data to the TV, all necessary EDID files must be in this folder.
Service mode overview for your reference.

Error Codes
Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:
• Activated (SW) protection.
• Failing I2C device.
• General I2C error.
The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.  The error code buffer contains all errors detected since the last  time the buffer was erased. The buffer is written from left to  right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.
An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.
An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED or via ComPair).
In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

How to Read the Error Buffer
You can read the error buffer in three ways:
• On screen via the SAM/CSM (if you have a picture).
Example:
– ERROR: 000 000 000 000 000: No errors detected
– ERROR: 013 000 000 000 000: Error code 13 is the last and only detected error
– ERROR: 034 013 000 000 000: Error code 13 was detected first and error code 34 is the last detected (newest) error

• Via the blinking LED procedure (when you have no picture).

Error codes
In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:

How to Clear the Error Buffer
The error code buffer is cleared in the following cases:
• By using the CLEAR command in the SAM menu
• By using the CLEAR command in the Factory mode:
• By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.
• If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

The Blinking LED Procedure
The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over time, an error buffer is available, which is capable of storing the last five errors that occurred. This is useful if the OSD is not working properly.
Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the front LED pulse with as many pulses as the error code number, followed by a period of 1.5 seconds in which the LED is “off”. Then this sequence is repeated.
Example (1): error code 4 will result in four times the sequence LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After this sequence, the LED will be “off” for 1.5 seconds. Any RC command terminates the sequence. Error code LED blinking is in red color.
Example (2): the content of the error buffer is “12 9 6 0 0” After entering SDM, the following occurs.
• 1 long blink of 5 seconds to start the sequence.
• 12 short blinks followed by a pause of 1.5 seconds.
• 9 short blinks followed by a pause of 1.5 seconds.
• 6 short blinks followed by a pause of 1.5 seconds.
• 1 long blink of 1.5 seconds to finish the sequence.
• The sequence starts again with 12 short blinks.

RGB Alignment
Before alignment, set the picture as follows:

White Tone Alignment:
• Activate SAM.
• Select “RGB Align.” and choose a color temperature.
• Use a 100% white screen as input signal and set the following values:
– “Red BL Offset” and “Green BL Offset” to “7” (if present).
– All “White point” values initial to “128”.

In case you have a colour analyser:
• Measure with a calibrated (phosphor- independent) color analyser (e.g. Minolta CA-210) in the centre of the screen.
Consequently, the measurement needs to be done in a dark environment.
• Adjust the correct x, y coordinates (while holding one of the White point registers R, G or B on max. value) by means of decreasing the value of one or two other white points to the correct x, y coordinates (see Table below) tolerance: dx: ± 0.003, dy: ± 0.003.
• Repeat this step for the other colour Temperatures that need to be aligned.
• When finished return to the SAM root menu and press STANDBY on the RC to store the aligned values to the NVM.  If you do not have a colour analyser, you can use the default values. This is the next best solution. The default values are average values coming from production (statistics).

Display Adjustment
You can use the default values. The default values are average values coming from production.
• Enter SAM mode.
• Select a colour temperature (e.g. COOL, NORMAL, or WARM).
• Set the RED, GREEN and BLUE default values according to the values.
• When finished press OK on the RC, then press STORE to store the aligned values to the NVM.
• Restore the initial picture settings after the alignments

Option Settings
The microprocessor communicates with a large number of I2C ICs in the set. To ensure good communication and to make digital diagnosis possible, the microprocessor has to know which ICs to address. The presence / absence of these NT72567 ICs is made known by the option codes.
Notes:
• After changing the option(s), save them by pressing the OK button on the RC before the cursor is moved to the left, select STORE and press OK on the RC.
• The new option setting is only active after the TV is switched “off” / “stand-by” and “on” again with the mains switch (the NVM is then read again).

Reset of Repaired SSB
A very important issue towards a repaired SSB from a Service repair shop (SSB repair on component level) implies the reset of the NVM on the SSB.
A repaired SSB in Service should get the service Set type “00PF0000000000” and Production code “00000000000000”.
Also the virgin bit is to be set. To set all this, you can use the ComPair tool or use the “NVM editor” and “Dealer options” items in SAM (do not forget to “store”).
After a repaired SSB has been mounted in the set (set repair on board level), the type number (CTN) and production code of the TV has to be set according to the type plate of the set. For this, you can use the NVM editor in SAM. The loading of the CTN and production code can also be done via ComPair
(Model number programming).
In case of a display replacement, reset the “Operation hours display” to “0”, or to the operation hours of the replacement display.
Remark:
- After the NVM has been replaced, go to SAM and scroll to the <Reload MAC address>
- Select the item and press <OK> on the RC.

Reset of Repaired SSB
After NVM replacement, reload MAC address via SAM menu. This ensures the correct MAC address to be available in CSM for future repair actions.
Way of working:
• After the NVM has been replaced, go to SAM and scroll to the <Reload MAC address> .
• Select the item and press <OK> on the RC.
Notes:
• Only applicable to all related models that are “Smart TV level 0”enabled (only YouTube access). For models without internet connection feature, no action is needed.
• HDCP keys are located in the NVM. If you are loading NVM with the ComPair tool, there is warning message displayed.
New NVM EEPROMs are shipped with pre-loaded HDCP keys.
SSB Identification
SSB’s of this chassis are identified by a “715” code on the SSB.
715Axxxx-Nnn-MMM-OOOO
• 715 main category, Printed Wiring Board
• Axxxx sub category, sequential coding number
• Nnn Version code
• N Development number
• nn Production number
• MMM Mounting variation code
• OOOO Optional variation code
Make sure when replacing an SSB the SSB identification codes match the replacement panel.

 

LG 50PJ350 PLASMA TV POWER SUPPLY BOARD TROUBLESHOOTING / DIAGNOSE , VOLTAGES DETAIL

 Adjustment Notice:  All adjustments (DC or Waveform) are adjusted in WHITE WASH.  Customer’s Menu, Select “Options”, select “ISM” select “WHITE WASH”

It is critical that the DC Voltage adjustments be checked when;
1) SMPS, Y-SUS or Z-SUS board is replaced.
2) Panel is replaced, Check Va/Vs since the SMPS does not come with new panel.
3) A Picture issue is encountered.
4) As a general rule of thumb whenever the back is removed.

ADJUSTMENT ORDER “IMPORTANT” DC VOLTAGE ADJUSTMENTS
1) POWER SUPPLY: VS, VA (Always do first)
2) Y-SUS: Adjust –Vy, VSC
3) Z-SUS: Adjust Z-Bias (VZB)
WAVEFORM ADJUSTMENTS
1) Y-SUS: Set-Up, Set-Down

The Waveform adjustment is only necessary
1) When the Y-SUS board is replaced
2) When a “Mal-Discharge” problem is encountered
3) When an abnormal picture issues is encountered.

SWITCH MODE POWER SUPPLY [SMPS] SECTION

This Section of the Presentation will cover troubleshooting the Switch Mode Power Supply for the Single Scan Plasma. Upon completion of the section the technician will have a better understanding of the operation of the Power Supply Circuit and will be able to locate voltage and test points needed for troubleshooting and alignments.
DC Voltages developed on the SMPS
Adjustments VA and VS

Always refer to the Voltage Sticker located on the back of the panel, in the upper Left Hand side for the correct voltage levels for the VA, VS, -VY, VSC, and Z Bias as these voltages will vary from Panel to Panel even in the same size category.
Set-Up and Ve are just for Label location identification and are not adjusted in this panel.

SMPS Part Number: EAY60968701
Check the silk screen label on the top center of the Power Supply board to identify the correct part number. (It may vary in your specific model number).

Operation of this Power Supply.

The Switch Mode Power Supply Board Outputs to the :

Y-SUS Board

VS: Drives the Display Panel’s Horizontal Electrodes.

VA: Drives the Display Panel’s Horizontal Electrodes.

M5V: Used to develop Bias Voltages on the Y-SUS then routed to the Control board and then to the Z-SUS Board.

Z-SUS Board

VS: VS is routed to the Y-SUS first then to the Z-SUS board which Drives the Display Panel’s Horizontal Electrodes.

Main Board

STBY 5V:  Microprocessor Circuits

17V:  Audio B+ Supply, Tuner B+ Circuits 5V Signal Processing Circuits

Also AC-Det (if missing, shuts of TV in 10 seconds) and Error-Det (not used)

Adjustments

There are 2 adjustments located on the Power Supply Board VA and VS. The M5V is pre-adjusted and fixed. All adjustments are made referenced to Chassis Ground. Use “Full White Raster” 100 IRE

VS: VR901

VA: VR502

Power Supply Basic Operation

AC Voltage is supplied to the SMPS Board at Connector SC101 from the AC Input assembly, routed to the Standby 5V supply. The STBY5V (standby) is B+ for the Controller chip on the back of the board (IC701) on the SMPS and output at P813 pins 13 and 14 then sent to the Main board for Microprocessor (IC1) operation (STBY 3.46V RUN 5.14V).

When the Microprocessor (IC1) on the Main Board receives a “POWER ON“ Command from either the Power button or the Remote IR Signal, it outputs a high (2.43V) called RL_ON at Pin 15 of P813. This command causes the Relay Circuit to close both Relays RL101 and RL103 routing AC to the Bridge Rectifier D101 which then routes the primary voltage to the PFC circuit (Power Factor Controller) 388V which can be read measuring voltage at Fuses F302 and F801 from “Hot” Ground. AC Detection (AC Det) is generated on the SMPS, by rectifying a small sample of the A/C Line and routed to the Controller (IC701) where it outputs at P813 pin 16 (4.44V) and sent to P301 to the Main Board where it is sensed and monitored by the Main Microprocessor (IC1). If AC Det is missing the set will come on, but shut off in 10 seconds.
When RL_ON arrives, the run voltage +5V source becomes active and is sent to the Main Board via P813 (5.17V at pin 5, 6 and 7). The (Error Det) from the SMPS Board to the Main Board can be measured at pin 8 of P813 (2.85V STBY and 4.90V RUN), but it is not used. The RL-ON command also turns on the 17V (Audio B+) which is also sent to the Main Board. The 17V Audio supply outputs to the Main board at P813 pins 1 and 2 and used for Audio processing and amplification.

The next step is for the Microprocessor IC1 on the Main Board to output a high (3.29V) on M_ON Line to the SMPS at P813 Pin 17 which is sensed by the Controller IC701, turning on the M5V line and outputs at P812 pins 9 and 10 to the Y-SUS
board.

The Controller (IC701) also uses the M_ON line to turn on the VA and the VS supplies. (Note there is no VS On Command in this set). VS is output at P812 to the Y-SUS board P210. (VA pins 6 and 7 and VS pins 1 and 2). Note: The Va is fused
on the Y-SUS then routed out P203 to the X-Board Left. VS is also routed out of the Y-SUS P211 pins 4 and 5 to the Z-SUS P2.

AUTO GND Pin 18 of P813: This pin is grounded on the Main board. When it is grounded, the Controller (IC701) works in the normal mode, meaning it turns on the power supply via commands sent from the Main board. When AUTO GND is
floated (opened), it pulls up and places the Controller (IC701) into the Auto mode. In this state, the Controller turns on the power supply in stages automatically. A load is necessary to perform a good test of the SMPS if the Main board is suspect.

50PJ350 SMPS STATIC TEST UNDER LOAD

Using two 100 Watt light bulbs, attach one end to Vs and the other end to ground. Apply AC to SC101. If the light bulbs turn on and VS is the correct voltage, allow the SMPS to run for several minutes to be sure it will operate under load. If this test is successful and all other voltages are generated, you can be fairly assured the power supply is OK.
Note: To be 100% sure, you would need to read the current handling capabilities of each power supply listed on the silk screen on the SMPS and place each supply voltage under the appropriate load.

50PJ350 Power Supply Troubleshooting

With P813 disconnected from the Main board (P301) attach two 100 Watt light bulbs, attach one end to Vs and the other end to ground.
Apply AC to SC101. If the light bulbs turn on and VS is the correct voltage, allow the SMPS to run for several minutes to be sure it will operate under load. If this test is successful and all other voltages are generated, you can be fairly assured the power supply is OK.
Note: To be 100% sure, you would need to read the current handling capabilities of each power supply listed on the silk screen on the SMPS and place each supply voltage under the appropriate load. Then follow the instructions below to completely test turn on sequence.

When the supply is operational in its normal state the Auto Ground line at Pin 18 of P813 is held at ground by the Main Board.
This Power Supply can be powered on sequentially to test the Controller Chip IC701 operational capabilities and for troubleshooting purposes.
Disconnect P301 from the Main board and use the holes in that end of the connector to insert the jumper and resistors.

Warning: Remove AC before adding or removing any plug or resistor.

Note: Leave previous installed 100Ω resistor in place when adding the next resistor.

Ground the Auto Gnd Line (Pin 18) will allow the supply to be powered up one section at a time.
(B) Add a 100Ω ¼ watt resistor from 5V Standby to RL_ON and the AC Det, 17V and 5V Lines on P813 will become active.
(C) Add a 100Ω ¼ watt resistor from any 5V line to M_ON (Monitor_On) to make the M5V, VS and VA lines operational.
P812 (VS pins 1 and 2) (VA pins 6 and 7) and (M5V pins 9 and 10).

SMPS Connector P813 Identification, Voltages and Diode Check

a Note: The 17V, 5V, AC_Det and Error Det turn on when the RL_On command arrives.
b Note: The M5V, Va and Vs turn on when the M_On (Monitor On) command arrives.
c Note: The Error Det line is not used in this model.
d Note: If the AC Det line is Missing, the TV will shut off after 10 seconds of operation.
e Note: Pin 18 is grounded on the Main board. If this line is floated, the SMPS turns on Automatically when AC is applied.

SMPS Connector SC101 and P812 Identification, Voltages and Diode Check

Diode Mode Readings taken with all connectors Disconnected. DVM in Diode Mode.

LG42LN5200, LG42WT30, LG42WL10 , PANASONIC TH42LRU60, SANYO DP42D23, LGL42L80, LG47GA6400 T-CON BOARDS TIMING CONTROL BOARDS INTERCONNECTIONS SCHEMATICS

 42LN5300 Interconnect:  TV Models: LG 42LN5200 5300 5400 5700, LG 42WT30, LG 42WL10, Panasonic TH-42LRU60, Sanyo DP42D23 P42D23-00 & P42D23-11

PANEL P/N: EAJ62310701

Part Number: 6871L-3403A

T-con Board P/N: 6870C-0452A

DESC or Panel Sticker Number: LC420DUE-SFR5, LC420DUE-SFR1 (similar to LC500DUE-SFR1)

Warning: Be sure to install the screws in the T-CON board before applying power. Damage to the board will occur.

Panel Test: To run the T-CON “Panel Test”, remove the LVDS cables. Jump 12V to the 12V fuse. Jump VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

LG 42LN5300 P1100 (Mainboard) CN1 (T-CON board) Connector Video Waveforms

All LVDS signals are taken with SMPTY Color Bar signal input (1080P)

Component Input. All LVDS signals are “Differential Pairs”. The ones shown are the “Positive” signal of the pair. The Negative signal looks exactly the same but flipped 180 degree. Scope Settings are 100mV per/division, 2.5uSec per/division.

42LV5500 Interconnect:  TV Models: LG 42LV5400, LG 42LV5500, LG 42LW5300

PANEL P/N: EAJ61749101

Part Number: 6871L-2693A

T-con Board P/N: 6870C-0358A

DESC or Panel Sticker Number: LC420EUF-SDA1 (V6 32/42/47 FHD 120Hz)

Warning: T-CON Board under shield. Be to reinsert screws before operating set with shield removed.

PANEL Test:  To run the T-con “Panel Test”, remove the LVDS cables. Jump 12V to the 12V fuse. Jup VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

Note: Before doing the Panel Test, make sure their backlight can lit/operating normally.

 

 

42SL80 Interconnect: TV Models: LG 42SL80

PANEL P/N: EAT60667401

Part Number: 6871L-1828A

T-con Board P/N: 6870C-0259A

DESC or Panel Sticker Number: LC420WUD-SBM4 (42/47 Slim & Narrow 240Hz CONTROL)

47GA6400 Interconnect:  TV Models: LG 47GA6400

PANEL P/N: EAJ62270801

Part Number: 6871L-3264A

T-con Board P/N: 6870C-0444A

DESC or Panel Sticker Number: LC470EUN-SFF2 (DESC: LC470DUE-SFR1)

Warning: Return the screws when servicing the T-CON board with shields removed.

Concerning Quick Start:  If Quick Start is turned on in the Options Menu, T-CON 12V will be available during STBY, but there will be no video to process. Also, no Backlight.

CN2: Global Dimming

(1) Scan 1, (2) Scan 2, (3) Scan 3, (4) GND.  Pins are inverted on inverter.

PANEL Test:  To run the T-CON “Panel Test”, remove the LVDS cable CN1. Jump 12V to the 12V fuse on T-con board. Jump VCC 3.3V to pin-44 on CN1. White, Red, Blue, Green and Black patterns show on screen.

PHILIPS 24PFS6805-12 PHILIPS 32PHS6605-12 - TPM20.7E LA CHASSIS, MTK9288 PLATFORM SERVICE MODE ADJUSTMENTS, DIAGNOSING ERROR CODES, SOFTWARE UPGRADE AND POWER BOARD SCHEMATICS

Philips 24PFS6805-12,  32PHS6605-12,  24PFS6855-12,  43PFS6805-12, 32PFS6805-12,  43PFS6805-62, 32PFS680-62,  43PFS6855-12, 32PFS6855-12,  32PFS6905-12, 32PHS6825-60,  43PFS6825-60

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

BOM identification.

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.

The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number.

By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts.

For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. SN is Lysomice, RJ is Kobierzyce), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2010 week 10 / 2010 week 17). The 6 last digits contain the serial number.

Board Level Repair (BLR) or Component Level Repair (CLR)

If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level.

If your repair procedure says the board should be exchanged completely, do not solder on the defective board.  Otherwise, it cannot be returned to the O.E.M. supplier for back charging.

Cable dressings of 24, 32, and 43 inch Philips TVs

Small Signal Board (SSB)

Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB.

1. Release the clips from the LVDS connector that connect with the SSB[1].

Caution: be careful, as these are very fragile connectors!

2. Unplug all other connectors [2] .

3. Remove all the fixation screws from the SSB [3].

4. The SSB can now be shifted from side connector cover, then lifted and taken out of the I/O bracket.

Service Modes

Customer Service Mode (CSM).SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set.

SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:

Make alignments (e.g. White Tone), reset the error buffer(SAM and Factory Mode).

 Display information (“SAM” indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).

The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:

 Increase the home repair hit rate.

 Decrease the number of nuisance calls.

 Solved customers’ problem without home visit.

Note: For the new model range, a new remote control (RC) is used with some renamed buttons. This has an impact on the activation of the Service modes.  For instance the old “MENU” button is now called “HOME” (or is indicated by a “house” icon).

Service Alignment Mode (SAM)

How to Activate SAM

To activate SAM, use one of the following methods:

 Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “INFO/OK” button. Do not allow the display to time out between entries while keying the sequence.

 Or via ComPair.

After entering SAM, the following items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

How to Navigate

 In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items.

 With the “LEFT/RIGHT” keys, it is possible to:

– (De) activate the selected menu item.

– (De) activate the selected sub menu.

– Change the value of the selected menu item.

 When you press the MENU button once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background).

How to Store SAM Settings

To store the settings changed in SAM mode (except the RGB Align settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.

How to Exit SAM

Use one of the following methods:

 Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.

 Via a standard RC-transmitter, key in “00” sequence.

Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

Remark: Under main menu “NVM editor”, select “Service Data”, you can use the UP/DOWN keys to view and change the set Type number, the set Production Number or the 18AC of a part.(The NVM-editor still has the same function as before, alpha-numeric entry.)

SAM mode overview

Factory mode:

How to Activate the Factory mode

To activate the Factory mode, use the following method:

 Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button. Do not allow the display to time out between entries while keying the sequence.

After entering the Factory mode, we can see many items displayed, use the UP/DOWN keys to display the next/previous menu items.

Factory mode overview

How to Exit the Factory mode

 Select EXIT-FACTORY from the menu and press the “OK” button.

Note: When the TV is switched “off” by a power interrupt, or normal switch to “stand-by” while in the factory mode, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

Customer Service Mode (CSM)

The Customer Service Mode shows error codes and information on the TVs operation settings.The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set.This helps the call centre to diagnose problems and failures in the TV set before making a service call.

The CSM is a read-only mode; therefore, modifications are not possible in this mode.

How to Activate CSM

To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence). After entering the Customer Service Mode, the following items are displayed. use the Right/Left keys to display the next/previous menu items.  Note: Activation of the CSM is only possible if there is no (user) menu on the screen.

CSM Overview

How to Navigate

By means of the “CURSOR-DOWN/UP” knob (or the scroll wheel) on the RC-transmitter, can be navigated through the menus.

How to Exit CSM

To exit CSM, use one of the following methods.

 Press the MENU/HOME button on the remote control transmitter.

 Press the POWER button on the remote control transmitter.

 Press the POWER button on the television set.

Software Upgrading, Error code and Panel Code

The following update is for .pkg file.

1. Rename the file to “upgrade_loader.pkg”.

2. Prepare a USB memory (File format: FLAT, Size: 1G~8G).

3. Copy the software to USB flash disk (root directory).

4. Switch off the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 port.

Note: It contains USB3.0 port, if connect on it, the software may can’t be detected.

5. Switch on the TV. The TV will detect the USB memory s tick automatically. Then a window jumps out as below:

6. When the TV software is updated, the TV will turn on again automatically. Remove your USB flash drive.

7. We can enter in CSM or Factory mode to check the current software version.

The following update is for .upg file

Ready for F/W Upgrade

1. Rename the file to “autorun.upg”.

2. Prepare a USB memory (File format: FLAT, Size: 1G~8G).

3. Copy the software to USB flash disk (root directory).

4. Switch on the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 port.

Note the version of this F/W before you change the software file name.

Step 2: F/W Upgrade

Warning:

 Do not switch off your TV or remove your USB flash drive during the software update.

 If a power failure occurs during the update, do not remove your USB flash drive from your TV. Your TV will continue the update as soon as power is restored.

 If an error occurs during the update, retry the procedure. If the error reoccurs, contact Philips Consumer Care.

1. Connect your USB flash drive (containing the software update) to the USB connector on the TV. Wait 30 seconds or until the USB drive is recognized by the TV.

2. Your TV will start loading the software automatically.

3. When the loading of the software finished, press “Start” to activate the upgrade of the TV.

Notes:

If the USB flash drive is not detected, disconnect it and reconnect again.

 In case the software does not start loading automatically, you can also update the software manually

1. Press (Settings) on your remote control, and select All Settings > Update Software > Local Updates, and press OK.

2. Select the software file and follow the on-screen instruction to install latest software on your TV.

Step 3: Check the SW version

1. After burning software, TV will restart

2. Press “123654”, enter Customer Service Mode to check if the software version is correct.

Caution: Please make sure that software upgrade is finished before unplug the USB and AC power.

Error Codes

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:

• Activated (SW) protection.

• Failing I2C device.

• General I2C error.

The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.

The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.

An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.

An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED).

In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

How to Read the Error Buffer

You can read the error buffer in following ways:

• On screen via the SAM/CSM (if you have a picture).

Example:

– ERROR: 000 000 000 000 000: No errors detected

– ERROR: 013 000 000 000 000: Error code 13 is the last and only detected error

– ERROR: 034 013 000 000 000: Error code 13 was detected first and error code 34 is the last detected (newest) error

• Via the blinking LED procedure (when you have no picture).

Error codes overview

In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:

How to Clear the Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu

• By using the CLEAR command in the Factory mode:

• By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.

• If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.

Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

Option Code

Press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Set Option Code” in below tab. After resetting the Display Code, restart the set immediately.

Power layout SSB

SMPS [POWER SUPPLY] SCHEMATICS