LED LCD TV – Philips 40HFL5010T alignment procedure – Applicable to all HFL xxxx series Philips LCD TVs

General Alignment Conditions

Perform all electrical adjustments under the following conditions:
• Power supply voltage: 90 - 264 VAC, 50/ 60 ± 3 Hz.
• Connect the set to the mains via an isolation transformer with low internal resistance.
• Allow the set to warm up for approximately 15 minutes.
• Measure voltages and waveforms in relation to correct ground (e.g. measure audio signals in relation to AUDIO_GND).
Caution: It is not allowed to use heat sinks as ground.
• Test probe: Ri > 10 MW, Ci < 20 pF.
• Use an isolated trimmer/screwdriver to perform alignments.

Hardware Alignments: Not applicable.

Software Alignments
Put the set in SAM mode (see Chapter 5. Service Modes, Error Codes, and Fault Finding at previous post here). 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)

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 in back to div.table below.
• 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.

Click on the tables to magnify

This group setting of colour temperature will be applied automatically to the TV / VGA / HDMI / AV / YPbPr sources.

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 MT5580 ICs is made known by the option codes.

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” in back to div.table above. 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 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 compare (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.

[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.

40HFL5010T Philips LED LCD TV Service mode and adjustments, firmware update, Error codes, LED blinking codes and more

Philips 40HFL5010T/12 - Chassis TPM15.3HE LA - Service Modes, Error Codes, and Fault Finding

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: “AAAAAAB-XXX.YYY.MMM.TTT”, where:
• AAAAAA is the chassis name: TPN141HE/TPN142HE.
• B is the region indication: E = Europe, A = AP/China, U = NAFTA, L = LATAM.
• XXX is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 0- 255.
• YYY is the sub version number: this is updated with a minor change of specification (incompatible with the previous versions). Numbering will go from 0- 255.
• MMM is the number of the mandatory (upgrade) release in association with the area of the mandatory (upgrade) release. Numbering will go from 0 - 255.
• TTT bit 7 to 1 is the area of the mandatory (upgrade) release where 0 - none, 1 - Netflix, rest reserved.
• TTT bit 0 : 0 = development release, 1 = production release.

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: “062596” 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.

Life Timer
During the life time cycle of the TV set, a timer is kept (called “Op. Hour”). It counts the normal operation hours (not the Stand-by hours). The actual value of the timer is displayed in SAM in a decimal value. Every two soft-resets increase the hour by + 1. Stand-by hours are not counted.

Service Alignment Mode (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 “OK/INFO” 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.

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 screen” press “1999”, directly followed by the “Back” button. Do not allow the display to time out between entries while keying the sequence.

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.

Specifications
• Ignore “Service unfriendly modes”.
• Line number for every line (to make CSM language independent).
• Set the screen mode to full screen (all contents on screen is visible).
• After leaving the Customer Service Mode, the original settings are restored.
• Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.

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.

Contents of CSM
 1.1 Set Type This information is very helpful for a helpdesk/workshop as reference for further diagnosis. In this way, it is not necessary for the customer to look at the rear of the TV-set. Note that if an NVM is replaced or is initialized after corruption, this set type has to be re-written to NVM.
 1.2 Production code Displays the production code (the serial number) of the TV. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM.
 1.3 Installation date Indicates the date of the first installation of the TV. This date is acquired via time extraction.
 1.4a Option Code 1 Gives the option codes of option group 1 as set in SAM.
 1.4b Option Code 2 Gives the option codes of option group 2 as set in SAM.
 1.5 SSB Gives an identification of the SSB as stored in NVM. Note that if an NVM is replaced or is initialized after corruption, this identification number has to be re-written to NVM. This identification number is the 12NC number of the SSB.
 1.6 Display 12NC NVM read/write.
 1.7 PSU 12NC NVM read/write.
 2.1 Current Main SW Displays the built-in main software version. In case of field problems related to software, software can be upgraded. As this software is consumer upgradeable, it will also be published on the internet.
 2.2 Development SW Version Displays the built-in main software version. In case of field problems related to software, software can be upgraded. As this software is consumer upgradeable, it will also be published on the internet.
 2.3 Standby SW Displays the built-in stand-by processor software version. Upgrading this software will be possible via USB.
 2.4 Panel Code Displays the Display Code number.
 2.5 Bootloader ID ID of Bootloader.
 2.6 NVM version Detects and displays NVM version.
 2.7 Flash ID ID of flash model.
 2.8 e-UM version eDFU (help) version.
 2.9 Channel Table Structure Version version of channel table structure.
• 2.10 Error Codes Detects and displays errors.
 3.1 Signal Quality Analog/digital signal strength.
 3.2 Child lock Not active / active. This is a combined item for locks. If any lock (channel lock, parental lock) is active, it is indicated as “active”.
 3.3 HDCP keys Indicates the validity of the HDMI keys (or HDCP keys). In case these keys are not valid and the customer wants to make use of the HDMI functionality, the SSB has to be replaced.

 3.4 Ethernet MAC address A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.
 3.5 Wireless MAC address Wireless Media Access Control address.
 3.6 BDS key for Hotel model only.
 3.7 CI module check if CI card is insert.
 3.8 CI+ protected service CI+ key status.

 3.4 Ethernet MAC address A Media Access Control

address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.
 3.5 Wireless MAC address Wireless Media Access Control address.
 3.6 BDS key for Hotel model only.
 3.7 CI module check if CI card is insert.
 3.8 CI+ protected service CI+ key status.

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.

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.

Compare

ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics products. and offers the following:
1. ComPair helps to quickly get an understanding on how to repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore capable of accurately indicating problem areas. No knowledge on I2C or UART commands is necessary, because ComPair takes care of this.
3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the micro processor is working) and all repair information is directly available.
4. ComPair features TV software up possibilities.

ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair II interface box is connected to the PC via an USB cable. For the TV chassis, the ComPair interface box and the TV communicate via a bi-directional cable via the service connector(s).
The ComPair fault finding program is able to determine the problem of the defective television, by a combination of automatic diagnostics and an interactive question/answer procedure.

To Connect
This is described in the chassis fault finding database in ComPair.

[It is compulsory to connect the TV to the PC as shown in the picture below (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs can be blown]

To Order
ComPair II order codes:
• ComPair II interface: 3122 785 91020.
• Software is available via the Philips Service web portal.
• ComPair UART interface cable for TPM10.1x xx. (using DB9 to 2mm pitch JST connector): 3122 785 90630.

ComPair II interface connection

Software Upgrading

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 "http://www.philips.com/" support 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 (Customer Service 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 http://www.philips.com/support, it is not necessary to update the TV software.

Download the latest software

1. Open the internet page http://www.philips.com/support.
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 as .
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. 

FUS_clustername_version.zip: Contains the
“autorun.upg” which is needed to upgrade the TV main software and the software download application.
• NVM_clustername_version.zip: Default NVM content.
Must be programmed via ComPair.

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 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.

To Read the Error Buffer

On screen via the SAM/SDM/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.

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.

NVM Editor

In some cases, it can be convenient if one directly can change the NVM contents. This can be done with the “NVM Editor” in SAM mode. With this option, single bytes can be changed.

Do not change these, without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set!
• Always write down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new settings turn out to be incorrect.

Load Default NVM Values

It is possible to upload the default values to the NVM with ComPair in case the SW is changed, the NVM is replaced with a new (empty) one, or when the NVM content is corrupted.
After replacing an EEPROM (or with a defective/no EEPROM), default settings should be used to enable the set to start-up and allow the Service Default Mode and Service Alignment Mode to  be accessed.

No Picture

When you have no picture, first make sure you have entered the correct display code.

Unstable Picture via HDMI input
Check (via ComPair or factory mode) if HDMI EDID data is properly programmed.
No Picture via HDMI input
Check if HDCP key is valid. This can be done in CSM.
TV Will Not Start-up from Stand-by
Possible Stand-by Controller failure. Re-flash the software.

Audio Amplifier
The Class D-IC U602 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.

CSM
When CSM is activated and there is a USB memory stick connected to the TV, the software will dump the complete CSM content to the USB memory stick. The file (Csm.txt) will be saved in the root of the USB memory stick.
Loudspeakers
Make sure that the volume is set to minimum during disconnecting the speakers in the ON-state of the TV. The audio amplifier can be damaged by disconnecting the speakers during ON-state of the set.
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.

        Google.com/+GopakumarGopalan

How to enter the service mode – JVC LT26WX84 NTSC LCD TV, adjustments, SMPS schematic

JVC LT-26WX84/T LCD FLAT TELEVISION SB5 CHASSIS.  TV RF System- CCIR (M); Color System- NTSC; Sound System- BTSC (Multi Channel Sound)

PIXEL FAULT
There are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows.
(1) BRIGHT FAULT
In this pixel fault, a cell that should not light originally is lighting on and off.
For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.
(2) DARK FAULT
In this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting.
For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.
(3) FLICKER FAULT
In the pixel fault, a cell that should light originally or not light originally is flashing on and off.
For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing on and off

REMOVING THE MI-COM & DIST MODULE PWB
• Remove the STAND.
• Remove the REAR COVER.
• DIGITAL INPUT MODULE PWB
(1) Remove the 7 screws [T], and remove the VIDEO PWB BRACKET.
(2) Remove the 4 screws [U], and remove the MI-COM & DIST MODULE PWB from the VIDEO PWB BRACKET.

MEMORY IC REPLACEMENT
This memory IC stores data for proper operation of the video and deflection circuits.
When replacing, be sure to use an IC containing this (initial value) data.

MEMORY IC REPLACEMENT PROCEDURE

(1) Power off
Switch off the power and disconnect the power cord from the wall outlet.
(2) Replace the memory IC
Initial value must be entered into the new IC.
(3) Power on
Connect the power cord to the wall outlet and switch on the power.
(4) SERVICE MODE setting
Before entering the SERVICE MODE, confirm that the setting of TV/CATV SW of the REMOTE CONTROL UNIT is at the "TV" side and the setting of VCR/DVD SW of the REMOTE CONTROL UNIT is at the "VCR" side. If the switches have not been properly set, you cannot enter the SERVICE MODE.
a) Press [SLEEP TIMER] key and, while the indication of SLEEP TIMER 0 MIN is being displayed, press [DISPLAY] key and [VIDEO STATUS] key on the remote control unit  simultaneously.
b) The SERVICE MODE screen is displayed.
c) Verify what to set in the SERVICE MODE, and set whatever is necessary.  Refer to the SERVICE ADJUSTMENT for setting.
d) Press the [BACK] key twice to return normal screen.
(5) Receive channel setting
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set the receive channels (Channels Preset) as described.
(6) User settings
Check the user setting items according to after page.
Where these do not agree, refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set the items as described.

REMOTE CONTROL MENU OPERATION
(1) PICTURE ADJUSTMENT
Customers can adjust the picture setting of menu screen as their own like but the picture standard value during factory shipment is as below.

HOW TO ENTER THE SERVICE MODE
NOTE:
Ensure that the cursor (arrow) of the User Menu screen is pointing at Picture Control.
Before entering the SERVICE MODE, confirm that the setting of TV / CATV switch of the REMOTE CONTROL UNIT is at the "TV" side and the setting of VCR / DVD switch is at the "VCR" side. If the switches have not been properly set, you cannot enter the SERVICE MODE.
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key simultaneously, then enter the SERVICE MODE mode.
(3) When the Main Menu is displayed, press any key of the [0] to [9] key to enter the corresponding menu mode.
*Press any of the [0] to [9] keys before the SERVICE MODE mode disappears.
(4) Select the service item using the [ CH + ] / [ CH - ] key.
(5) Set the value using the [ VOL + ] / [ VOL - ] key.
(6) Press the [MUTING] key to save the value.

HOW TO EXIT THE SERVICE MODE
Press the [ BACK ] key to exit the Service mode.

BASIC OPERATION OF SERVICE MODE

SERVICE MODE ITEMS
In general, basic setting (adjustments) items or verifications are performed in the SERVICE MODE

HOW TO ENTER THE SELF-DIAGNOSIS DISPLAY MODE
Before entering the Self-diagnosis Display mode, confirm that the setting of TV / CATV SW of the REMOTE CONTROL UNIT is at the "TV" side and the setting of VCR / DVD SW is at the "VCR" side. If the switches have not been properly set, you cannot enter the Self-diagnosis Display mode.
(1) Press the [SLEEP TIMER] key and set it to 30 minutes.
(2) Press the [VIDEO STATUS] key and [DISPLY] key simultaneously, then enter the TEST MODE.
(3) Press the [4] key (Self-diagnosis Display mode) before the service mode screen disappears.
(4) Press the [MTS] key to enter Page 2 of the Self-diagnosis Display mode.
*Use the [MTS] key to toggle between Page 1 and Page 2.
NOTE:
The remote control unit attached to this set does not contain the [MTS] key. To perform the procedure (4), use a remote control unit that contains the [MTS] key.

HOW TO EXIT THE SELF-DIAGNOSIS DISPLAY MODE

To Save Failure History:
Turn off the power by unplugging the AC power cord plug when in the self-diagnosis display mode.
To Clear (Reset) Failure History:
Turn off the power by pressing the [POWER] key on the remote control unit when in the self-diagnosis display mode

FAILURE HISTORY
Failure history can be counted up to 9 times for each item. When the number exceeds 9, display will remain. Failure history will be stored in the memory unless it has been deleted.
NOTE:
Only SYNC (with/without sync signals) will be neither counted nor stored. POINTS TO NOTE WHEN USING THE SELF-DIAGNOSIS FEATURE
In addition to circuit failures (abnormal operation), the following cases may also be diagnosed as "Abnormal" and displayed and counted as "NG".
(1) Temporary defective transmissions across circuits due to pulse interruptions
(2) Misalignment in the on/off timing of power for I2C bus (VCC) when turning on/off the main power.
Diagnosis may be impeded if a large number of items are displayed as "NG". As such, start self-diagnosis check only after 3 seconds in the case of receivers and 5 seconds in the case of panels upon turning on the power. If recurrences are expected, ensure to clear (reset) the failure history and record the new diagnosis results.

DISPLAY METHOD WHEN RASTER IS NOT AVAILABLE
When raster is not displayed due to failure of the set, the POWER LED light will flash to indicate the failure mode. Trigger for forced shutdown of power is stored and displayed.

Details on Operation
Power of TV will be turned off when NG is detected for LOW B short Protection". "POWER LED" will start flashing immediately after power is turned off and power of tuner and panel cannot be turned on upon shutdown until the AC plugs are disconnected once and reconnected.

REMOVING THE POWER PWB
• Remove the STAND.
• Remove the REAR COVER.
• Remove the FAN BRACKET.
• Remove the POWER CORD.
• Remove the RECEIVER PWB.
(1) Remove the 4 screws [X], and remove the AV JACK BRACKET.
(2) Remove the 6 screws [Y], and remove the POWER PWB.
(3) Remove the 6 screws [Z], and remove the CHASSIS BASE

SMPS SCHEMATIC [Circuit diagram]

REMOVING THE BACKLIGHT UNIT
NOTE:
Do not carry out the following procedure in a dusty and dirty place.
If the surface of LCD GLASS, the surface of DIFFUSER SHEET, and the inside of BACKLIGHT UNIT are dusty or dirty, they cause unevenness of a displayed screen.
• Remove the CONTROL PWB.
• Remove the INVERTER PWB.
• Place the LCD UNIT with the screen facing upward.

Remove the 8 screws, 4screws, and 4 screws (16 screws in total), and remove the MAIN CHASSIS.
NOTE: Be careful not to damage the SOURCE IC and the GATE IC on the side of LCD GLASS when removing the MAIN CHASSIS.
(2) Remove the 6 screws  from the top side of the LCD UNIT.
(3) Remove the 12 screws  from the sides of the LCD UNIT.  Then, LCD GLASS, DIFFUSER SHEET, and BACKLIGHT UNIT are removed.

Universal remote control set-up codes for JVC TVs.  

If your TV need a 3 digit code, delete the leading Zero, from each of the code said below, and then check.  

Set-up procedure of different brand remote controls will not be the same.  You have to refer the user manual of that remote control to know more about it.

0516 0658 0502 0513 0684 0753 0541 0673 0195 0456 0601 0514 0193 0214 0054 0720 0533 0699 0361 0616 0338 0209

Samsung CM1829, CM1819 Microwave oven, schematic, wiring diagram, Exploded view and service procedure

There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near these circuits with the oven energized.

DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.

Never touch any circuit wiring with your hand nor with an insulated tool during operation.

Servicemen should remove their watches whenever working close to or replacing the magnetron.

Using +20sec Pad

This is a ONE TOUCH COOK pad.
By touching the +20sec pad once, you can start heating instantly.
You can increase the cooking time by pressing the +20sec pad while heating is being done.
A cooking time increases by 20 seconds at each press on +20sec pad. But it can not exceed the maximum time. Like traditional cooking, you may find that, depending on the food’s characteristics or your tastes, you
have to adjust the cooking times slightly.  Before operating the oven, times can be increased/decreased using either the time pads or +20sec button.
During the operating, time may only be added by using the +20sec button.

Memory Pads Programming

1. Hold down PROGRAM LOCK pad and then press PROGRAM pad. Hold together for 2 sec.
Be sure to press the pads firmly.
Result: PROG indicator appears in the digital display.

2. Press appropriate NUMBER pad for the desired memory number.
Result: Selected memory program code appears below the PROGRAM indicator.

3. Select power level by pressing the POWER LEVEL pad.
Result: Default power level HIGH appears in the display at first press of the POWER LEVEL pad.
Press the POWER LEVEL pad one or more times until you get the desired power level.

4. Press NUMBER pads to set the cooking time.
Result: The maximum time according to each cooking power level can be referred to in the title “Power Levels and Time Variations”. The NUMBER pads will not operate or respond when you press a cooking time exceeding the maximum value.

NOTE: It is not possible to set a cooking time for longer than the maximum time allowed on the chosen program. The power level indicator will flash and it is advisable to press CANCEL and to enter a new power level and cooking time.

5. Hold down PROGRAM LOCK pad and then press PROGRAM pad. Hold together for 2 sec once again.
Result: PROG indicator and memory number indicator blink 3 times in the digital display with a beep sound. And then the display goes blank.
Caution: Be sure to press the pads firmly in the right position.

6. When you want to program more, repeat the procedures above again.
Memory programs are available up to 30 items. Make sure the unit is properly programmed.
After programming is finished, all you have to do for memory cooking is to press the NUMBER pad. Then the selected memory program automatically starts cooking.

How to Operate Memory Cooking

After having finished memory programming, just press the NUMBER pad of the memory number you want to select. The oven will automatically start heating according to the pre-programmed cooking time and power
level after a short delay (5 sec).

1.Make sure the oven is plugged into a properly earthed electrical outlet and ‘ON’ appears in the display window.

2. Open the door.
The oven lamp will be turned on.

3. Put the food into a suitable container, place it in the centre of the oven and then close the door securely.
Result: The oven lamp will go off.

4. Press NUMBER pad.
Result: After 2 seconds, the selected memory program automatically starts heating.

Stopping the Cooking

You can stop cooking at any time so that you can:

• Check the food
• Turn the food over or stir it
• Leave it to stand
To stop the cooking;

Temporarily: Open the door or press DN pad once.
Result: Cooking stops. To resume cooking, close the door and press again.
* Completely: Press the DN pad twice.
Result: The cooking settings are cancelled.
If you want to cancel any cooking settings before starting cooking, simply press CANCEL pad once.

Magnetron and Hi voltage transformer Replacement

Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of which are contained in one assembly).

1. Remove the outer panel.
NOTE: Before servicing, make sure to discharge electric charge remaining on the high voltage capacitors or wait for more than 5 min.
2. Remove the back cover.
3. Disconnect all lead wires from the magnetron.
4. Remove screws securing the duct-MGT and duct-fan.
5. Remove the nut-flanges securing the magnetron by using a box wrench

6. Take out the magnetron very carefully.
NOTE1: When removing the magnetron, make sure that its antenna does not hit any adjacent parts, or it may be damaged.
NOTE2: When replacing the magnetron, be sure to remount the magnetron gasket in the correct position and make sure the gasket is in good condition.

1.Discharge the high voltage capacitor.
2. Disconnect all the leads.
3. Remove the mounting bolts securing the HVT.
4. Reconnect the leads correctly and firmly.

Door Assembly and door handle Replacement

Be sure to wear gloves when you disassemble or assemble the parts.
1. Remove hex bolts securing the upper hinge and lower hinge. Then remove the door assembly.
2. Insert the flat screwdriver or thin metal plate into the gap between the door E and door C to remove Door C from the door assembly.
3. Remove 2 screws securing the Door Handle.
4. Unbend the 6 metal tabs around the trim of Decoration Door Cover.
5. Remove 3 screws securing the Door E Ass’y.
6. Remove upper hinge and lower hinge.
7. Remove Decoration Door, Screen B, Key-Door, Spring-Key, Pin-Key as needed.

Removal of Door Handle

1.Remove hex bolts securing the upper hinge and lower hinge. Then remove the door assembly.
2. Insert the flat screwdriver or thin metal plate into the gap between the door E and door C to remove Door C from the door assembly.
NOTE: Be careful when handling Door C as is fragile.
NOTE: The thickness of the flat screwdriver or thin metal plate inserted into the gap should be 0.5mm or less.
3. Remove 2 screws securing the Door Handle to the Door E Ass’y.
4. Unbend the 2 metal tabs at both ends of the Door Handle to remove the Door Handle Cover from the Door Handle.

[After replacement of the defective component parts of the door, reassemble it and follow the instructions below for proper installation and adjustment so as to prevent an excessive microwave leakage]

1. When mounting the door to the oven, be sure to adjust the door parallel to the bottom line of the oven face plate by moving the upper hinge and lower hinge in the direction necessary for proper alignment.
2. Adjust so that the door has no play between the inner door surface and oven front surface. If the door assembly is not mounted properly, microwave energy may leak from the space between the door and oven.
3. Do the microwave leakage test.

Procedure for Measurement of Microwave Energy Leakage

1)Pour 275 ±15cc of 20°C±5°C ( 68°F±9°F ) water in a beaker which is graduated to 600cc, and place the beaker in the center of the oven.
2) Start to operate the oven and measure the leakage by using a microwave energy survey meter.
3) Set survey meter with dual ranges to 2,450MHz.
4) When measuring the leakage, always use the 2 inch spacer cone with the probe. Hold the probe perpendicular to the cabinet door. Place the spacer cone of the probe on the door and/or cabinet door seam and move along the seam, the door viewing window and the exhaust openings moving the probe in a clockwise direction at a rate of 1 inch/sec. If the leakage testing of the cabinet door seam is taken near a corner of the door, keep the probe perpendicular to the areas making sure that the probe end at the base of the cone does not get closer than 2 inches to any metal. If it gets closer than 2 inches, erroneous readings may result.
5) Measured leakage must be less than 4mW/cm2, after repair or adjustment.

Note on Measurement
1) Do not exceed the limited scale.
2) The test probe must be held on the grip of the handle, otherwise a false reading may result when the operator's hand is between the handle and the probe.
3) When high leakage is suspected, do not move the probe horizontally along the oven surface; this may cause damage to the probe.
4) Follow the recommendation of the manufacturer of the microwave energy survey meter.

Record keeping and notification after measurement

1) After adjustment and repair of a radiation preventing device, make a repair record for the measured values, and keep the data.
2) If the radiation leakage is more than 4mW/cm2 after determining that all parts are in good condition, functioning properly and the identical parts are replaced as listed in this manual, notify that fact to ; CENTRAL SERVICE CENTRE
3) At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer.

Replacement of Fuse, H.V.Fuse, Drive Motor & Ass’y Stirrer

1.Disconnect the oven from the power source.
2. Remove defective fuse from Noise filter.
3. When replacing the fuse, be sure to use an exact replacement part. If new fuse blows out again after replacement, check the primary interlock switch, door sensing switch and interlock monitor switch.
4. When the above three switches operate properly, check if any other part such as the control circuit board, ventilation motor or high voltage transformer is defective.

Replacement of Drive Motor
1. Remove outer panel and back-cover.
2. Disconnect all the lead wires from the drive motor.
3. Remove a screw securing the drive motor.
4. When replacing the drive motor, be sure to remount it in the correct position with the coupler.
5. Connect all the leads to the drive motor.
6. Screw the drive motor to the bracket motor with a screw driver.

Replacement of Ass’y Stirrer

1.Remove a screw securing the drive motor.
2. Open the door.
3. Hold side stoppers of ceiling cover (Ass’y Stirrer Cover) with both hands and pull them in and down.
4. Take the ceiling cover out of the oven cavity.
5. Remove plastic clips securing the Ass’y Stirrer.
Caution: When removing the Ass’y Stirrer Cover, be sure to be extremely careful about the exposed inside components on the top of the oven cavity. If any of them are deformed, abnormal symptom can happen such as arcing or sparks during operation.

Replacement of Lamp

You don’t need to remove the outer panel or other parts in order to replace a lamp.
1. Remove a screw securing the lamp cover.
2. Remove the lamp by rotating it clockwise.
3. Replace with a new lamp by rotating it counterclockwise.
NOTE : If it is necessary to replace the lamp holder, you can disconnect lead wires by pushing down on the hole of lead wires using a long pointed tool.

Replacement of Air Filter

Pull out the spacer pins at both ends of the Air Filter. Then the locking clamps inside are released.
2. Lift the Air Filter off the post carefully.
Note: Spacer pins are not detachable from the Air Filter.

High Voltage Capacitor Replacement

It is not necessary to remove Magnetron in order to remove HVC.
1. Remove the outer panel and back cover.
2. Discharge the high voltage capacitor.
3. Remove HVT wire and H.V.Fuse.
4. Remove screws securing HVC bracket.

Magnetron

Continuity checks can indicate only an open filament or a short magnetron. To diagnose an open filament or short magnetron :
1. Isolate the magnetron from the circuit by disconnecting its leads.
2. A continuity check across the magnetron filament terminals should indicate one ohm or less.
3. A continuity check between each filament terminal and magnetron case should read open.

High Voltage Capacitor

1.Check continuity of the capacitor with the meter set at the highest resistance scale.
2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MΩ.
3. A shorted capacitor will show continuous continuity.
4. An open capacitor will show constant 9MΩ.
5. Resistance between each terminal and chassis should read infinite.

High Voltage Diode

1.Isolate the diode from the circuit by disconnecting its leads.
2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used to
check the front-to back resistance of the diode (otherwise an infinite resistance may be read in both directions). The resistance of a normal diode will be infinite in one direction and several hundred KΩ in the other direction.

Adjustment of Primary, Door Sensing and Monitor Switch

For continued protection against radiation hazard, replace parts in accordance with the wiring diagram and be sure to use the correct part number for the following switches: Primary and door sensing switches, and the interlock monitor switch (replace all together). Then follow the adjustment procedures below. After repair and adjustment, be sure to check the continuity of all interlock switches and the interlock monitor switch.

1.When mounting Primary switch and Interlock Monitor switch to Latch Body.
NOTE:No specific adjustment during installation of Primary switch and Monitor switch to the latch body is necessary.
2. When mounting the Latch Body to the oven assembly, adjust the Latch Body by moving it so that the oven door will not have any play in it.  Check for play in the door by pulling the door assembly. Make sure that the latch keys move smoothly after adjustment is completed.  Completely tighten the screws holding the Latch Body to the oven assembly.
3. Reconnect to Monitor switch and check the continuity of the monitor circuit and all latch switches again by following the components test procedures.
4. Confirm that the gap between the switch housing and the switch actuator is no more than 0.5mm when door is closed.

Exploded view, schematic and wiring diagram

LAMP: Lamp Relay (250V 5A)
MAIN: Main Relay (250V 16A)
VENT: Ventilation Motor Relay (250V 5A)
IR1: Inrush Relay1 (250V 5A)
IR2: Inrush Relay2 (250V 5A)
P1: Power Relay1 (250V 16A)
P2: Power Relay2 (250V 16A)

Operating Sequence

When the oven is set to power level of 100%, 70% or 50%
When the oven is operating under the power level of 100%, 70% or 50%, the coil of power relay 1 and 2 are energized intermittently by ON and OFF cycle of 30 seconds in order to supply power source to the High
Voltage Transformer and thus to oscillate the magnetron.
When the oven is set to DEFROST power position
1.When the oven is set to DEFROST power position, the coil of power relay 1 and 2 is programmed to operate not together but alternately. That means power relay 1 should not work when the power relay 2 does(or relay 2 should not work when the power relay 1 does). The power realy 1 is energized for 15 seconds and then the power relay 2 is energized for 15 seconds in turn. One complete ON and OFF cycle time of the power relay 1 and 2 is 30 seconds.