Sunday, 6 December 2020

Philips 32 and 43 inch LCD TV – 5813 – 5833 series - how to enter the service mode, adjustments, power board schematic and error codes

 

Philips 32PHD5813-55, 32PHG5813-78, 32PHG5813-77, 32PHG5833-77, 43PFG5813-78, 43PFG5813-77, 43PFD5813-55, 43PFT5813-57, 43PFG5813/78-AUO  - TPM18.7L LA chassis, MTK5800 platform

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.

PAL, NTSC, SECAM: Mains power: AC 110-240V +/-10%

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 center (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.


Small Signal Board (SSB) removal

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.

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

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

2. Unplug connector [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 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”, choose “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

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

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.

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 center 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.

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

Software Upgrading

Ready for F/W Upgrade

1. Rename the software as “autorun.upg”.

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

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

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

F/W Upgrade

1. Plug the USB memory on the USB port on the side I/O port of TV (Please connect to USB 2.0 port, not recommend USB3.0 port)

2. AC on (Power plug)

3. TV will upgrade automatically as detect the software.

4. Press OK to start software upgrade.

5. Upgrade in progress

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 three ways:

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

– 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)

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

• 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.

Panel 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 “Display Code” in below tab. After resetting the Display Code, restart the set immediately.

SSB power layout

A 715G7734 PSU (For 32” 5813 Series) power board schematic



A 715G8971 PSU (For 43” 5813 Series) power board schematic



Sunday, 15 November 2020

Philips Record Player 22GA312 – mechanical adjustments, schematic and part numbers – Vintage set

Philips Hi-Fi Record player 22GA312-00R-00z-15z – circuit diagram, adjustments and part numbers

1.    In position “stop” (SK4-On) the supply voltage must be -10v with regard to chassis. Adjust with R647.

2.    When the pickup arm lies on the pickup arm support 81, with apparatus in “stop” (SK4-ON position, the voltage across the LDR 9R405) SHOULD BE 2.5V.  ADJUST WITH r465.  The supply voltage should be -10v.

3.    When the stylus of the pickup head is at a distance of 60mm from the center of the turntable, the voltage across the LDR 9R4050 should be 3.5v +/-0.2v.  adjust with the locking screw M3x16 in bracket 108.  The supply voltage should be -10v,

4.    The clearance between the film (above the LDR R106 should lie between 0.5 and 2mm.  Adjust by slightly bending switch off bracket 106.

5.    At 33 1/3 and 45r.p.m, the apparatus should have the correct speed.  Adjust by setting R468 and R470 to central position and with R469 and R471, adjust to the correct speed.  Check with the stroboscope ring on the turntable mat, or test record 4822 397 30019.

6.    When using record with a pitch of 2mm, the apparatus should switch off when the stylus is at 60-55mm from the center of the turntable.  Check with test record 4822397 30015.  Adjust with T466 (apparatus in the 45r.p.m. position).  IMPORTANT:  Incidence of light on the LDR from the outside must be avoided.

Auxiliary tools

Test record: 4822 397 30015

Test record: 4822 397 30019

Wow/flutter meter [Bruno Woelke Type ME104.

Fro DGG test record:

DIN 45545 [3150 Hz] 33 1/3 RPM

DIN 44545 [3150Hz] 45RPM.

Schematic and PWB






Exploded view


Mechanical parts


Tuesday, 10 November 2020

Panasonic TH-42PX75U, TH-50PX75U, TH-42PX77U, TH-50PX77U 10th generation Plasma TVs troubleshooting Part-2

 

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Troubleshooting for Picture Trouble.  How to determine the defective board.


Diagnosis for Picture Problem (All Over the Screen). Abnormal Color, Vertical Line, Sync Error, Noise Picture-All Models

Diagnosis for Picture Problem (All Over the Screen). 

Enter the “Internal Test Pattern Generator”

or

Is the screen “White”, after disconnecting the connector “A5”?



Vertical Line Problem.

Picture Trouble at Upper or Lower half.


Picture Trouble at Right or Left half (50 Inch)

Picture Trouble at Right or Left half (42 Inch).

Picture Trouble in 50 Inch Models.  No Picture, Picture noise, Half Vertical line, etc.

Picture Trouble all Over the Screen.  Picture noise, Full Vertical line, etc.

Symptoms and Remedies.

Picture Problem (All over the screen).  Noise Picture, Vertical Line.

Abnormal colour and sync error.

Picture Problem (Right half or Left half). 

Self-check Procedure.  CHASSIS: GPH10D:  All models.

 [This procedure does not reset the TV]

How to access the self-check screen to reset the unit.

Select a television channel, and while pressing the [VOLUME ( - )] button on the main unit, press the [OK] button on the remote control for more than 3 seconds.

How to Exit the self-check screen.

Press and hold the Power button on the TV for 5 seconds or disconnect the AC cord from the wall outlet.

TV volume down & OK on remote only does a basic IC self check. It does NOT Reset the TV.

It does not clear channel programmed settings, picture settings, channel labels, LOCK mode settings, or password.

Using this method, it shows the unit firmware version (Peaks 1.050 and GenX 1.00) and it checks IC communications ONLY.

This is more useful to identify the firmware version without having to decode the info in the setup menu About/Version screen.

To Reset the Unit, turn the TV on and while pressing the “VOLUME ( - )” button on the main unit, press the “Menu” button on the remote control for more than 3 seconds.

The Self-Check menu appears on screen. Then, disconnect the AC cord from the wall outlet.

[Note: All customer programmed parameters will be erased.]

TH-42PX75U/ TH-42PX77U Driver Setup Adjustment.

1. Input a white signal to plasma video input.

2. Set the picture controls as follows.

Picture menu: Vivid

Normal: Set

Aspect: Full.

Caution

1. First perform Vsus adjustment.

2. Confirm the voltage level of VSCN. This should be done after the adjustment of Vad which should be - 105V

When Vad = -105V, Vscn voltage is 40V ±4V.

Initialization Pulse Adjustment.

1. Input a 100% White signal to the unit.

2. Set the picture controls as follows:

Picture menu : Vivid

Normal : Set

Aspect : Full

3. Connect an Oscilloscope to test point TPSC1. Using VR6602, adjust (T2) for 195+/-10µ Sec.

TH-50PX75U - TH-50PX77U Driver Setup Adjustment.

TH-42PX75U and TH-50PX75U BOARD LAYOUT AND PART NUMBERS

TH-42PX77U and TH-50PX77U BOARD LAYOUT AND PART NUMBERS


How to troubleshoot Panasonic Plasma (GPH10DU Chassis) PDP 2007 10th generation TVs – Models TH42PX75U, TH50PX75U, TH42PX77U, TH50PX77U - Part-1

 

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

How to determine the defective board.

Verification of voltages

Normally, when there is a power problem, shutdown occurs immediately.  So, to resolve a power problem, voltage checks are necessary before shutdown.

Check if the power comes up after disconnecting the suspected board.  If power comes up  after disconnecting a board, the board is defective.   “Power comes up” equals “no shutdown”.

After exchanging the following boards, voltage adjustment is required.

P board, SC board, SS board,

Defective Board - A Board.

To confirm this, unplug the TV and disconnect connectors A5, A6, and A7 from the A board.

The TV should turn on automatically and display a white screen.

Warning: Disconnect AC Power prior to making any disconnection or connection.


Defective Board (Possibility)- P, D, A, SC, SS Board (P > A, D, SC, SS)

[Always Disconnect AC Power prior to making any disconnection or connection.]

(*1) = The reference number of the sustain data connector is different in some of the models:

TH-42PX75U = SS23

TH-42PX77U = SS23

TH-50PX75U = SS33

TH-50PX77U = SS33

Defective Board-D Board:  Trouble Mode-3.3V down SOS

LED Blinking codes detail

LED blinks 4 times

Defective Board-Primarily P board or possible D board:  Trouble Mode-Power Supply SOS

Turn the unit on.  Is pin 12 of CN P25 of the P board high before shutdown?

If no, D board is defective.

If yes, P board is defective.

LED blinks 5 times (Quick Troubleshooting)

Defective Board-D, P, C, SC, SS board or Panel (DDIC)*1:  Trouble Mode-5V SOS

(*1) = Data Driver IC

LED blinks 5 times

LED blinks 5 times-D, P, C, SC, SS board or Panel:  Trouble Mode-5V SOS

How to find defective board.

LED blinks 6 times- Defective Board (Possibility)- SC, SS, D, P Board (SC > SS, D, P )

Trouble Mode-SC Energy Recovery SOS

How to find defective board.

LED blinks 6 times-Defective Board (Possibility)- SC, SS, D, P Board (SC > SS, D, P ):  Trouble Mode-SC Energy Recovery SOS

LED blinks 7 times-Defective Board (possibility):  Trouble Mode-SC Floating voltage SOS

How to find the defective board.

LED blinks 8 times-Defective Board (possibility):  SS, SC, D, P board (SS>SC,D,P)/PDP: Trouble Mode-SS Energy recovery SOS/Panel

LED blinks 10 times before pressing the power button-Defective Board-P, A Board:  Trouble Mode-SUB 5V SOS, Main 3.3V SOS DTV 9V SOS, Tuner Power SOS

How to find the defective board.



LED blinks 12 times-Defective Board (Possibility)- Speakers, A Board:  Trouble Mode-Sound SOS

No Power/Dead Unit-troubleshooting

No Picture from one or all inputs (OSD and Sound OK)- All models

No Picture / No OSD-All Models

No Sound

There are two kinds of picture problem.  1) Abnormal picture. 2) No picture.

Basic concept of determining the defective board.

1) Which area is the symptom displayed on the screen?

A. Part of the screen

B. All over the screen

Adjustment after PCB exchange.

After exchanging the following boards, voltage adjustment is required. P board, SC board, SS board.

Diagnosis by Test Pattern When OSD is Available.

Picture problem such as “Picture Noise and or Vertical Line” displayed all over the screen is mainly caused by a defective D or A board. The “internal Test Pattern Generator” can help determine whether to replace the D or A board. The test patterns are created by the D board. Follow the steps below to confirm the operation of the D or A boards.

Diagnosis by Removing the A5 Connector.

Symptom such as “No picture, No OSD, Sound OK” is mainly caused by a defective A or D board. The internal pattern generator cannot be accessed due to the loss of OSD. This method makes it possible to determine whether the A board or the D (SC,SS) is defective.


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...