TPL16.1E chassis Philips 43PUH6101, 55PUH6101, 65PUT6121 How to enter the service mode, software update and service adjustments

Applicable to: 43PUH6101 / 88, 43PUS6101 / 12, 43PUT6101 / 12/60, 43PUS6201 / 12, 43PUT6201 / 12, 49PUH6101 / 88, 49PUS6101 / 12, 49PUT6101 / 12/60,55PUH6101 / 88, 55PUS6101 / 12, 55PUT6101 / 12/60, 55PUS6201 / 12, 55PUT6201 / 12, 65PUS6121 / 12, 65PUT6121 / 12

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 “See Type Plate” in CSM 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: “AAAAAB-XXX.YYY.MMM.TTT”, where: • AAAAA is the chassis name: TPL161E.
• 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.

Service Alignment Mode (SAM) [Service Mode]

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.
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).
• Press the following key sequence on the remote control transmitter: “062596” directly followed by the “Home/Menu” button to switch to (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.

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.

• Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.
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.
Note: Activation of the CSM is only possible if there is no (user) menu on the screen.

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

It is possible for the user to upgrade the main software via the USB port. This allows replacement of a software image in a stand alone set. A description on how to upgrade the main software can be found in the DFU or on the Philips/support website.

Preparing a portable memory for software upgrade
The following requirements have to be met:
1. A personal computer connected to the internet.
2. An archive utility that supports the ZIP-format (e.g. WinZip for Windows or Stufflt for Mac OS).
3. A FAT formatted USB memory stick (preferably empty).
Note:
1. Only FAT/DOS-formatted memory sticks are supported.
2. Only use software update files that can be found on the philips web site.

Check the current TV software version
Before starting the software upgrade procedure, it is advised to check that what the current TV software:
1. Press the “1 2 3 6 5 4” button on the remote control to enter the CSM mode.
2. Use the up/down cursor keys to select “Current Main Software”.
If the current software version of the TV is the same as the latest update file found on philips/support website. It is not necessary to update the TV software.

Download the latest software
1. Open the internet page philips/support website.
2. Find information and software related to the TV.
3. Select the latest software update file and download it to the PC.
4. Insert the USB memory stick into one of the USB ports of the PC.
5. Decompress the downloaded ZIP file and copy it to the root directory of the USB flash drive.

Update the TV software
1. Turn the TV on and wait for it to boot completely.
2. Insert the USB memory stick that contains the software update files in one of the TV’s USB ports.
3. The TV will detect the USB memory stick automatically.
Then a window jumps out.
Note: If the USB flash drive is not detected after power up, disconnect it and re-insert it.
4. Select [Update] and press OK.
5. To proceed, In next menu select [Start] and press OK to start software updates.

6. Upgrading will now begins and the status of the updating progress will be displayed.
7. When the TV software is updated. Remove your USB flash drive, then select [Restart] and press OK to restart the TV.

Note:

• Do not remove the USB flash drive during the software update.
• If a power failure occurs during the update, do not remove the USB flash drive from the TV. The TV will continue the software update as soon as the power comes up again.
• If an error occurs during the update retry the procedure or contact the dealer.
• it is not recommended downgrading to an older version.
• Once the upgrade is finished, use the PC to remove the TV software from the USB portable memory.

Content and Usage of the One-Zip Software File
Below you find a content explanation of the One-Zip file, and instructions on how and when to use it. Only files that are relevant for Service are mentioned here.
• EDID_clustername.zip: Contains the EDID content of the
different EDID NVMs.
• FUS_clustername_version.zip: Contains the file downloaded which is needed to upgrade the TV main software and the software download application.
• NVM_clustername_version.zip: Default NVM content.

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.

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).

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).

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 SAM, 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.

How to Activate Blinking LED Procedure
Use one of the following methods:
• Activate CSM.The blinking front LED will show the layer 1 error(s), this works in “normal operation” mode or automatically when the error/protection is monitored by the standby processor.
In case no picture is shown and there is no LED blinking, read the logging to detect whether “error devices” are mentioned.

• Activate SAM. The blinking front LED will show the entire content of the LAYER 2 error buffer, this works in “normal operation” mode.

Guidelines Uart logging

Possible cases:
Uart loggings are displayed:
• We can conclude that the TV-set is starting up and that communication with the flash RAM seems to be supported. The processor is able to read and write in the
DRAMs.
• We can not yet conclude that flash RAM and DRAMs are fully operational/reliable. There still can be errors in the data transfers, DRAM errors, read/write speed and timing control.
Uart loggings report fault conditions, error messages, error codes and fatal errors:

• Some failures are indicated by error codes in the logging.
• I2C bus errors.
• Not all failures or error messages should be interpreted as fault. For instance the root cause can be wrong option codes settings.

TV Will Not Start-up from Stand-by
Possible Stand-by Controller failure. Re-flash the software.

Audio Amplifier
The Class D-IC U606 has a power pad for cooling. When the IC is replaced it must be ensured that the power pad is very well pushed to the PWB while the solder is still liquid. This is needed to insure that the cooling is guaranteed; otherwise the Class D-IC could break down in short time.

Display option code
Attention: In case the SSB is replaced, always check the Panel Code in CSM, even when picture is available. Performance with the incorrect display option code can lead to unwanted side-effects for certain conditions.

Software Alignments

Put the set in SAM mode. The SAM menu will now appear on the screen. Select RGB Align and go to one of the sub menus.
The alignments are explained below.
The following items can be aligned:
• White point.
To store the data:
• Press OK on the RC before the cursor is moved to the left.
• Select “Store” and press OK on the RC.
• Switch the set to stand-by mode.
For the next alignments, supply the following test signals via a video generator to the RF input:
• EU/AP-PAL models: a PAL B/G TV-signal with a signal strength of at least 1 mV and a frequency of 475.25 MHz
• US/AP-NTSC models: an NTSC M/N TV-signal with a signal strength of at least 1 mV and a frequency of 61.25 MHz (channel 3).
• LATAM models: an NTSC M TV-signal with a signal strength of at least 1 mV and a frequency of 61.25 MHz (channel 3).

 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 color analyzer:
• Measure with a calibrated (phosphor- independent) color analyzer (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. Tolerance: dx: ± 0.003, dy: ± 0.003.
• Repeat this step for the other color 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.

In case you have a color analyzer:
• 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. 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.

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.

Value	Cool (11000 K)	Normal (9000 K)	Warm (6500 K)
x	0.276	0.287	0.313
y	0.282	0.296	0.329

 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 MT5561 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).

Option Code Overview
Enter SAM mode to check the option codes. they could be edited in the NVM.

Display Code Overview
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”. After resetting the Display Code, restart the set immediately.

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 “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.

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.

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.
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.

Cable position numbers
In this chassis, the cable position numbers can be defined via the rule that the number is always starting with an “E” followed by the connector number of the current sourcing board. The order is always seen from where the power initiates from. So from PSU to SSB, from SSB to IR/LED panel, from IR/LED panel to keyboard control panel. For example, a cable from the PSU connector CN902 to the SSB connector CN701, will have the position number ECN902.

Philco PS2914 CRT TV How to enter the service mode, adjustment details, full schematic LA5-A Chassis using LA76818AM (Chroma, IF, Video jungle), QXXAVC479P (CPU)

The primary source of X-RADIATION in television receiver is the picture tube. The picture tube is specially constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X - RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this service manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds specified limits, take necessary corrective action. Carefully follow the instructions for + B1 volt power supply adjustment, and high voltage check to maintain the high voltage within the specified limits.

IC802 (EEPROM) Replacement
When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation.  However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.

Initial Bus Data Setup
Note: When IC802 (EEPROM) is replaced, following Service Menu should be set up for proper TV operation before attempting the service adjustments.

NO.01 RFAGC (Adjust the data 06 to10)
NO.05 V-SCO (Adjust the data 17 to 11)
NO.06 V-LIN (Adjust the data 15 to 16)
NO.11 VLI60 (Adjust the data +1 to 0)
NO.19 RDRIV (Adjust the data 63 to 64)

NO.82 CHMT (Adjust the data 12 to 05)

NO.308 R08 (Adjust the data FF to 21)

NO.84 RELAY (Adjust the data 80 to 20) NO.309 R09 (Adjust the data FF to 95)

NO.85 CCD (Adjust the data 26 to 31)
NO.300 R00 (Adjust the data FF to 93)
NO.301 R01 (Adjust the data FF to 0E)

NO.310 R10 (Adjust the data FF to 50)
NO.311 R11 (Adjust the data FF to 00)

↓

NO.20 GDRIV (Adjust the data 07 to 08) NO.302 R02 (Adjust the data FF to 00)

NO.371 R71 (Adjust the data FF to 00)
NO.372 R72 (Adjust the data FF to A2)

NO.21 BDRIV (Adjust the data 63 to 64)
NO.24 B-YD (Adjust the data 10 to 08)
NO.25 R-YD (Adjust the data 10 to 08)

NO.303 R03 (Adjust the data FF to 00)
NO.304 R04 (Adjust the data FF to 01)
NO.305 R05 (Adjust the data FF to 00)

NO.68 AFCAV (Adjust the data 00 to 01) NO.306 R06 (Adjust the data FF to 00)

NO.81 POMT (Adjust the data 12 to 08)

NO.307 R07 (Adjust the data FF to 00)

Enter the Service Menu

While pressing the MENU button on the television, press the Number Key 2 on the remote control unit.  The Service Menu now appear.

Service Adjustments:
Press the CHANNEL UP or CHANNEL DOWN button on the remote control handset to select the desired service menu item you want to adjust.
Use the VOLUME + or - to adjust the data. The + or - button will increase or decrease the data sequentially.

Exit from the Service Menu
Press the MENU button to turn off the Service Menu display.
The data which is set in the service mode is stored into the memory IC automatically.

Service Adjustments:  On-screen Service Menu

Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments.
When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages.
Initial Setup Data marked with an * should be changed from Initial Value Data.

[RFAGC] AGC

NOTE: Do not attempt this adjustment with weak signal.
1. Tune the receiver to most clearest (or strongest) VHF station in your area. Set the brightness and contrast controls to maximum. Set the colour control to minimum.
2. Select Item No. 01 [RFAGC] in the service mode.
3. Change value until the snow noise just disappears.
4. Exit from the service mode.

[H-PHA] HORIZONTAL CENTRE

1. Recceive a monochrome circular pattern.
2. Set the brightness and contrast to normal.
3. Select Item No. 02 [H-PHA] in the service mode.
4. Change value to be optimum horizontal centre position.
5. Exit from the service mode.

[V-POS] VERTICAL CENTRE

1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to maximum.
3. Select Item No. 03 [V-POS] in the service mode.
4. Change value to be optimum vertical centre position.
5. Exit from the service mode.

[V-SIZ] VERTICAL SIZE

Receive a monochrome circular pattern.
2. Set the brightness and contrast to maximum.
3. Select Item No. 04 [V-SIZ] in the service mode.
4. Change value to be optimum vertical size.
5. Exit from the service mode.

[OSDHP] OSD POSITION

1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to normal.
3. Select Item No. 12 [OSDHP] in the service mode.
4. Change value to be proper OSD position.
5. Exit from the service mode.

[CCD] CAPTION H-POSITION ADJ

Tune receiver to a caption channel.
2. Check that CAPTION position is in the horizontal
center of the screen. If CAPTION center is too right or left, perform steps 3-6. (See figure below.)
3. Select Item No. 85 [CCD] in the service mode.
4. Adjust data with + or - key for proper horizontal center.
5. Exit from the service mode.

Items 16-23 GREY SCALE

1. Receive a monochrome circular pattern.
2. Set the brightness and colour to normal, contrast to maximum.
3. Enter to the service mode.
4. Set each value of Item-16 RBIAS, 17 GBIAS, 18 BBIAS mode to 00. Set each value of Item-19 RDRIV, 21 BDRIV mode to 63, 20 GDRIV to 08.
5. Select Item-22 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible one coloured line.
6. Press the 1 (Red Bias +), 4 (Red Bias -), 2 (Green Bias +), 5 (Green Bias -), 3 (Blue Bias +) or 6 (Blue Bias -) button to adjust the brightness of each colour until a dim white line produced. Please see the control button allocations in this mode.
7. Select Item-23 DRV mode to enter the white balance adjusting mode.
8. Press the 7 (Red Drive +), RECALL (Red Drive -), 8 (Blue Drive +) or 0 (Blue Drive -) button alternately to produce normal black and white picture.
9. Exit from the service mode.
10. Check for proper grey scale tracking at all brightness levels.
NOTE: If the grey scale adjustment is made after picture tube replacement, check the high voltage.

Adjustment-2 (MTS Adjustment)

Enter the Service Menu
While pressing the MENU button on the television, press the Number Key 3 on the remote control unit. The Service Menu now appear.

Service Adjustments:
Press the CHANNEL UP or CHANNEL DOWN button on the remote control handset to select the desired service menu item you want to adjust.
Use the VOLUME + or - to adjust the data. The + or - button will increase or decrease the data sequentially.

Exit from the Service Menu
Press the MENU button to turn off the Service Menu display.
The data which is set in the service mode is stored into the memory IC automatically.

SOUND LEVEL ADJUSTMENT

1. Connect a signal to the antenna terminal with audio signal of 1KHz at 100% modulated.
2. Connect a DC Volt-Meter to TP-317 ( pin-38 of IC3401) and the ground.
3. Switch the TV set on, and set the Surround OFF.
Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter to the service mode.

5. Adjust voltage to become DC 400mVrms±20mVrms at TP317 by pressing the VOLUME(+/-) button on the remote control or TV set.
6. To exit from the service mode, press the MENU button.

STEREO SEPARATION ADJUSTMENT

1. Connect an oscilloscope:
Probe-A to TP-317 (pin-38 of IC3401) and the ground.
Probe-B to TP-318 (pin-39 of IC3401) and the ground.
2. Turn on the TV set, and receive the multi sound programme.
3. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter the service mode.
4. Select “LOW SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.

5. Adjust the level of 300Hz at TP-317 (pin-38 of IC3401) to become minimum level by pressing the VOLUME(+/ -) button on the remote control or TV set.

6. Select “HI SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.

7. Adjust the level of 4KHz at TP-318 (pin-39 of IC3401) to become minimum level by pressing the VOLUME (+/-) button on the remote control or TV set.
8. To exit from the service mode, press the MENU button.

Service Adjustment-3: FINE TUNING

This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by the automatic tuning.
This function is available for one channel only and the fine-tuned channel is memorised into IC802 (EEPROM).
FINE TUNING
1. Enter the Service Menu
While pressing the MENU button on the television, press the “4” or MENU button on the remote control unit. The Service Menu now appear.

Service Adjustments:
Press and hold the VOLUME + or VOLUME – button on the remote control handset or TV set to make fine tuning adjustment. Press and hold the VOLUME + button for higher frequency tuning, and press and hold the VOLUME - for lower frequency tuning.

Fine tuning data value will be automatically stored in memory.

To return to normal TV mode, press the MENU button on the TV set or remote control handset. (Or will automatically return to normal TV mode after 5 seconds.)

FOCUS ADJUSTMENT

1. Receive the monochrome circular pattern.
2. Set the brightness to normal and contrast to maximum.
3. Adjust the focus control on the F.B.T. for the best focus on the screen centre.

+B POWER SUPPLY ADJUSTMENT

Connect a DC voltmetre to TP-”+B +130V” and the ground. Set the +B adjustment control (VR651) to middle range.
2. Set the brightness to normal and contrast to maximum.
3. Tune the receiver to an active channel and synchronized picture.
4. Adjust +B voltage to 130± 0.5 volt DC by using VR651.

HORIZ. WIDTH ADJUSTMENT

1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to maximum.
3. If the picture is too wide, or narrow, adjust horizontal width control (VR462) for optimum width.
4. Select several other channels and check horizontal width.

HIGH VOLTAGE CHECK

Note: +B (+130V) Voltage and Grayscale Adjustment must be completed before attempting High Voltage Check.
1. Connect high voltage voltmeter negative lead to ground, and connect + lead to anode of picture tube.
2. Tune receiver to an active channel and confirm TV is operating properly.
3. The high voltage must be 28.5KV ± 1KV and less than 32KV at 0 beam current (Brightness and contrast minimum setting).
Note: If the picture tube is replaced, check the high voltage. The horiz. width adjustment affects the high voltage. Therefore, re-check the high voltage.

Protection Circuit

This TV set has a built-in power supply protection circuit.
It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occurs during TV reception, the TV set goes to the standby mode.

When an abnormality occurs during TV reception, it causes pin 27 of the CPU to go continually Low voltage for about one second. The CPU detects that this has occurred and outputs the signal from pin 31 to switch off the power supply lines.

Releasing the protective circuit and restoring power supply

To release the protective circuit and restore power supply, turn the power to the TV set OFF and then ON again via either the main power switch or the ON-OFF button on the remote control. This will work only if the power supply trouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be restored and the circuit will have to be repaired.

Purity and Convergence Adjustment

CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustment should be made only after picture tube or deflection yoke replacement, following the steps below:

PURITY ADJUSTMENT
1. Demagnetise the picture tube and receiver using an external degaussing coil. When replacing picture tube or deflection yoke, mount deflection yoke and purity-convergence magnets assembly properly, see figures 1 and 4.
2. Turn Red and Blue guns off and provide only Green raster.  Rotate Screen control to fully counterclockwise. Rotate Red and Blue Bias controls fully counterclockwise. Slowly rotate Green Bias control clockwise to produce Green raster.
3. Loosen the screw holding the Deflection Yoke and remove the 3 Rubber Wedges, and slide the Deflection Yoke fully forward.
4. Rotate and spread the Tabs of the two Purity Magnets to centre the vertical green belt in the picture screen. The Purity Magnets are also adjusted to obtain vertical centring of the raster.
5. Slowly slide the Deflection Yoke backward until a uniform green screen is obtained.
6. Check the purity of the red and blue screens for uniformity, turn off other colours to check this (use bias controls).  Readjust the yoke position if necessary until all screens are pure.
7. Adjust each Bias control and screen control to obtain white raster. Refer to Gray Scale Adjustment. If part of the picture screen is coloured, adjust the Deflection Yoke position forward or backward slightly.

8. Tighten the mounting screw of the Deflection Yoke. Adjust Convergence next.
CENTRE CONVERGENCE ADJUSTMENT
1. Use a dot crosshatch pattern signal.
2. Turn Red and Blue guns on and turn off Green gun. Adjust the angle between the Tabs of the Four Pole Magnet 1 and 2, and superimpose the Red and Blue vertical lines in the centre area of the picture screen. Refer to figure.
3. Keeping the mutual angle of the Tabs of the Four Pole Magnet turn them together to superimpose the Blue and Red horizontal lines in the centre area of the picture screen. Refer to figure.
4. Turn Green gun on and adjust Six Pole Magnet 3 and 4 that the Green line superimposed on the Red/Blue lines.  This is the same procedure used in steps 2 and 3.
Refer to figure.
OUTER AREA CONVERGENCE ADJUSTMENT
Slightly loosen the screw holding the Deflection Yoke. Adjust the Deflection Yoke to converge the detail in the outer area (left side and right side) of the picture screen by orbital movement of the front of the Yoke, then secure the Deflection Yoke in appropriate position by putting the wedges as illustrated. Tighten screw holding the Deflection Yoke.

Schematic [Circuit diagram] full

CS29B850F18XSV Samsung color TV troubleshooting, SMPS and deflection schematic, service mode adjustments

Samsung CS29B850F18XSV Chassis: KSDB(P)-CB1M – 29 inch CRT color TV

Basic Troubleshooting: Diagnosis of LED on the Front Panel

Light is On: This happens when the Master Switch is not pressed or the power cord is disconnected.

Light is Blinking: This happens when the power cord is disconnected.

Light is Off: The LED blinks, while the unit is starting up or the unit is turning off.

Troubleshooting by the Checksum
Diagnosis of trouble by the checksum is neither reliable nor convenient.
You can only use the checksum of the current direct-view TV to determine whether the software is corrupted or not.
The Checksum value is determined according to the version of the software loaded on the set.
Therefore, you can determine whether the software has been properly downloaded, if you know the correct checksum for that version of the software.
You can check the checksum according in the following order.
Factory Mode > Checksum > Enter > Output Checksum (e.g. 0xab2b)

Checksum Example
T-UR2PEANS-0001 checksum=2A0B

No Power troubleshooting procedure

No Sound Troubleshooting procedure

No Picture Troubleshooting procedure

Tuner Diagnosis
If there is no signal measured even though the RF signal received by the external antenna is input to the Main Board Tuner.
- Supplied Power: 5V, 8V, 33V
- RF Trouble Check: Check CVBS output
- AUDIO Trouble Check: Check SiF Signal output.

General Adjustment :
In general, a color TV can provide ideal visual quality by adjusting the basic settings such as the vertical size, horizontal size, focus, etc.
Display a black and white picture on the screen to check if the picture is clearly displayed.
If there are some ‘spotted’ points on the screen when displaying a black and white picture, degauss the screen using the degauss coil. If the spotted points remain, re-adjust the purity and the convergence.
This completes the basic performance examination.

How to Access Service Mode

To enter Service Mode, press the keys on the remote control according to the following sequence. (in Stand-by status.)

To Enter: press “ Info > Menu > Mute > Power On” the entering service mode procedure is the same as this for almost all Samsung TVs; including LCD TV.
2. The initial screen of Service Mode.
3. Functions of the Keys within Service Mode.

Service Mode adjustments 

MENU	Show all menus
▲/▼	Move the cursor to select an item.
◀/▶	Adjust the selected configuration value

W/B Setting

No	Item	Data	Required Adjustment
1	White Balance	X:265+-5 y:265+-5 Y:32+-3 X:265+-5 y:265+-5 Y:1.6+-0.2	White Balance (Standard Data)
2	Screen Voltage	Toshiba Pattern	Same As S17A Chassis
G2 Adjust

Option1 XX XX XX XX XX
Option2
Hotel Option
Deflection
Video Adjust 1
Video Adjust 2
Video Adjust 3
Video Adjust 4
YC Delay
Others

Bus Stop	Off
Checksum G2 Adjust Reset	0000

T-UR2PEANS-0001

Default Factory data settings

Service Adjustments
1. Adjusting the Picture Size
Since the K16C chassis includes a deflection adjustment of the Factory Data, adjustments must be performed according to the following procedures when replacing the Main Board.
1. Display the Lion pattern.
2. Press “Power Off > Info > Menu > Mute > Power On” using the remote control and enter Factory Mode.

3. Enter Deflection Mode.
4. Adjust the V-AMP, V-SHIFT, H-EW and H-SHIFT items so that the width becomes 92 and the height becomes 92.

Adjusting the Picture Straight Lines
1. Display the Cross Hatch pattern.

2. Adjust settings other than VSHIFT, H-EW and H-SHIFT, so that the straight lines are displayed without curves.

3. Adjust BOW and Angle settings wo that the center line becomes a straight line.

4. Adjust the H-Parabola and H-Trapezium settings so that the left and right lines become straight.

5. Adjust the upper corner and the lower corner settings so that the end of the lines become straight.

6. Adjust the V-Linearity and V-SC settings so that the intervals of the horizontal lines become uniform.

7. When the adjustments are complete, display the Lion Pattern and check the picture size not been changed.  If there is no change, finish adjustments.

Screen voltage adjustment.  Screen voltage adjustment is  critical to all CRT based TVs.

Adjusting the Screen Voltage

Select : Power off > info > Menu > mute > Power ON

2. Initialise all settings to the values appropriate to the corresponding model make sure the video adjust 1 is the factory date, just as the following picture.

3. Select: Mute ,and get into the G2 adjust Toshiba pattern.

4. First check IBRM in “G2 Adjust” of Factory and adjust Screen VR until "Screen Adjust :OK", like the picture.

Adjusting the White Balance

1.  Enter the factory mode [Service Mode] as stated above.

2. Initialize all settings to the values appropriate to the corresponding model.
3. Display the Toshiba pattern and adjust the White Balance using CA100 with the coordinates of the corresponding model.

5. Enter Video Adjust1 of Service Mode. Adjust Low / Light.

- Adjust Sub Bright to set Y.
- Adjust B Cutoff to set y.
- Adjust R Cutoff to set x.
6. Enter Video Adjust1 of Service Mode. Adjust High/Light.
- Adjust Sub Contrast to set Y.
- Adjust B Drive to set y.
- Adjust R Drive to set x.
7. Check Low/Light and readjust it if its value has been changed.
8. If you have readjusted Low/Light, readjust High/Light until the two values are identical to the coordinates of the corresponding model.

White Balance Standard Data

Check List for the Screen Voltage and White Balance Adjustment
1. The Screen Voltage and White Balance are connected to each other, and both of them have to be configured to the correct values.
2. Adjust the White Balance after the Screen Voltage was adjusted, and check if the Screen Voltage is normal after adjusting the White Balance.
3. If the White Balance is readjusted, check the Screen Voltage again.
4. When the adjustment is finished, check the following checklist.
If there is a spot on the screen when turning the TV set off/on, adjust the Screen Voltage again.
If there is a ghost line on the screen, adjust the Screen Voltage again.

Power supply [SMPS] and Deflection schematic

Syscon chroma schematic