Akira CT-14TA9CP- How to enter the service mode, adjustments, factory default data – schematic- LA76810, LC863320A – chassis SS1

A = PAL/SECAM/NTSC/NTSC P/B

R.N = PAL/SECAM/NTSC P/B

CP = PAL/NTSC P/B

B+ Voltage Alignment

Set and connected all the points.

Locate the RP551 alignment VR location.
Use digital multi-meter to measure the B+ voltage.
Switch on the TV chassis and connect by Philips pattern for alignment.
Align the Rp551 VR with the digital multi-meter to the required spec voltage110 Volt +/- 0.5V,(14”&21”) and 129.5Volt +/- 0.5V (25”/29”/34”).
Alignment finished, apply glue onto RP551 VR. After glue re-check the B+ voltage to ensure the B+ voltage is within spec of 110V(14”&21”) and 129.5Volt(25”/29”/34”).

Alignment Mode and Factory Setting
Switch on the TV chassis and change to AV mode position.

Press “Factory mode” key to enter “ factory alignment mode”. Use “CH +/-“ to select the alignment item, and use “V +/-“ keys to do adjustment to you requirement.

IF Voltage Adjustment
Setting-up – set-up the Philips 5418/5518 pattern generator, AV out frequency to 38MHz, signal level to 70dB +/- 2 dB.
IF set-up 38MHz signal connected with coaxial cable with 1 capacitor of “0.01uF” and connect to main chassis IF” / ground points.

Tuner must not insert with the antenna.
Switch on TV chassis, adjust the IF coil “T110” and check the Ch 2 brightness line for the range change from 0 to 5V. Readjust the voltage to meet Ch 1 position.
Note: LA76810A alignment only on VCO (T110) not others.

Vertical Line – Pin–Cushion Adjustment
Receive Channel 7 colour bar.Adjust the PR301 for vertical lines pin-cushion to 1 straight line, adjust the PR302 for horizontal phase to spec requirement.

Vertical Line and Size Adjustment:

Receive crosshatch pattern, use factory mode remote control to press “factory mode” key for adjustment. Using CH +/- keys for V. Size and V. Line selection.
Use V +/- keys to adjust the picture line requirement and the size to spec.

RF AGC Adjustment
Receive channel 13 of picture pattern. Adjust the AGC at 60 dB for no picture noise. 100 dB picture should not be distorted and the VOS do not have unstable condition

Checking the Electrical Function

Connect the power cord and connect the signal to RF input.

 Check the power supply whether OK or not. Switch on the TV set and the LED is on. Switch off the TV screen and should not have CRT spot within 3 sec.
Receive the channel 1 for mono-scope pattern to check the picture focus and the round circle should not be distorted. The Center position, and VOS line/size are within spec. Check the brightness, contrast and color condition. Check the convergence, picture must be clear, focus OK and white balance are OK. Also check the complete screen picture quality. High voltage condition OK and the Screen picture must be OK.
Check all the functional keys must be working well.
Receive color pattern signal and the system color. (PAL/SECAM/NTSC) Check the power main on/off switch, brightness, volume, color, contrast and tint. The picture quality must not have color noise, unbalance size and distorted condition.
Check the sound quality standards, Volume up/down are OK to spec, and sound output.
Ensure the sound output is not distorted and noisy. No interference for DK/BG/I/M.
Use remote Control Unit for all types of function check and ensure OK.
Check the words display condition.
Shock test and make sure the picture and sound are not distorted and shifted

Use strong and weak signal to check the color picture condition. After adjust the signal level to 35-40 dB and the color should not gone. The picture and sound must be OK. At 60 dB the picture should not have snow noise.
Ensure the factory mode setting are set. Set-off the factory mode function and last switch off the TV set.
All the “NG” sets must send for repairing and recording for reference.
Check the AV input and output the picture and sound must be OK

Reliability Aging Test:1st lot of production sets. Sampling 20 sets for aging 7 days continues test with color signal in. Normal production sets must be age for 1 day.

Mechanical Inspection
Inspect all glue are firmly placed.

Check all screws are tightened, no missing and loose.
Check all the connectors are fully located onto the chassis base.
Check all the safety components are firmly located onto the chassis and no damage.
The TV internal side should not see any excess metal materials.
Check all the cable and wire are OK in-used.
Check the FBT and switching transformers not high mounting. The big capacitors are not slanting and high mounting.

High Potential Testing:

Set the mega-meter is set in position.(Insulation tester)

Set the meter to DC500V.
Use the meter probe onto the tuner body and the power cord on connector socket.
Switch on the button and test the insulation performance and the reading at 2/3 position.
Insulation spec must over 9.0 Mohm. if not reject.

Note: Everyday work check the high pot. Condition as 3100V, 10 mA, 5 sec are OK.

Safety Check
High voltage checking. Use high pot tester and set the tester to 3100V, 10mA and ensure the AC/DC switch is in AC position. Set the tester to 10mA and timer to 5 sec.
Checking methods.
connect the power cord into power socket.
the high pot tester gun pointed at metal part of TV set body.
switch on the switch to test the high electric power.
connect with high voltage within 5 second and remove the tester gun point.

CTV SET ALIGNMENT - FACTORY SERVICE MODE 

“Enter” and “Leave” the Factory mode adjustment methods:

 Enter factory password: (use normal Remote control unit)

Set TV as RF condition and press remote control “PROG” key and follow by “6”, “4”, “8”,“3”

Repeat the same step of “1.1.1.” to enter into “White Balance” adjustment condition
Repeat the same step of “1.1.1.” to enter into “Factory mode” adjustment condition
Repeat the same step of “1.1.1.” to enter into “Factory mode” setting condition
Repeat the same step of “1.1.1” to leave the factory mode function

Direct Enter:
Use Factory mode Remote control unit, press the “factory” key to enter into “factory mode” function. Press one more time “factory” key to enter “White balance” adjustment condition, press one more time to enter the adjustment condition. Press One “factory” key to setting up our requirement spec. Last press once “factory” key to leave factory mode function.

Use “factory mode” for TV ageing, 2nd step is to align the White Balance in good condition. 3rd step adjust the required electrical specification. (The function adjustment are 20 selection) Others function of adjustment are 39 items, and you can use “P+/P-“ key and “V+/V-“ key for selection and adjustment.

Setting of company logo:
Switch on the TV set and set the TV in AV mode, Press Remote control “DISP” key and the TV screen will display “AV” and follow by presetting the Numeric key “6”, “4”, “8”, “3” to enter the company logo setting.
Press the “P+/P-“ key for selection of function and press “V+/V-“ key for adjustment. Press “>*<-“ key to change or select your requirement.
Logo setting 1st row that come with 4 kinds of setting:
Logo setting 2nd row that come with 2 kinds of setting:
1st turn off the display, 2nd turn on the display (display the word setting of maximum 10 words).
When the 2 rows of words are display on the TV screen, and you can check the words positioning. Not too lose to each other or the words are not clear to display on the screen. Reset the logo words from the logo setting factory mode.

Factory default data

Full schematic

CE20LM5 UK6-A Sanyo Color Monitor-How to enter the service mode, adjustment details

Television system: System I;  Color system: PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)

Service Menu

With the set turned ON, press the following sequence of buttons on the remote control:- [MENU, 3, 6, 0, 9]

The main service menu will be displayed.

Model Option:

B/S [Betting Shop]:  For models fitted with SCART and TUNER

CCTV [Closed Circuit TV]: For models fitted with BNC IN/OUT

 Changing the model option will automatically alter some of the settings to suit
the requirements of the application.

Also some menu's & options will not be accessible in the CCTV mode

Hotel Menu

Hotel mode allows the owner to restrict the functionality of the set so that the user may not tamper with settings such as channel tuning.

Volume max' allows the owner to set a limit to the maximum sound output to prevent noise disturbance.

To enter the Hotel Menu press & hold the GREEN button on the remote for about 5 seconds,
the Hotel menu will appear at the bottom of the screen.

Turn ON to disable RF channel tuning facility.

set value between 0 and 100 to limit the sound output available from speaker set the desired input or channel that will appear at switch on.

Use P+ / P- to select item and Vol+ / Vol- to change data.

Option Menu

This menu is used to enable or disable certain functions availible in the bios.
To enter the Option menu press and hold the GREEN button on the remote for about 5 secs, first the HOTEL menu will appear. Now press and hold GREEN for a further 5 secs, now the OPTION menu
will appear. Only the highlighted items may be accessed by the user.

Use P+ / P- on the remote to highlight the desired item, then use Vol+ / Vol-- to change the state.

Other Menu

This menu contains some items that should not normally require adjustment.

Use P+ / P- to select item & Vol+ / Vol-to change value.

ADC Calibration

The ADC ADJ menu is accessible from the main service menu.

ADC calibration is performed automatically by pressing Vol + key whilst the ADC menu is displayed.

A test signal of RGB colour bars must be applied to the SCART input for this adjustment to be performed. If the result is successful, OK will be displayed at the bottom of the OSD.

It is not possible to manually adjust these values.

Press Vol +to begin auto Calibration.

This adjustment is not required for the CCTV model.

Color Temperature

The Color Temperature menu is accessible from the main service menu and is used to adjust the pictures' white balance.

Connect a 100% white test signal to either SCART or Aerial input and set picture mode to STANDARD
Enter the service mode & select Color Temperature option.

Keeping one color constant, adjust R, G, B Gain value to achieve a pure white image.

If a suitable color analyzer is available adjust the co-ordinates to X= 0.290, Y= 0.290 (+/- 0.01).

If the Grey scale suffers from a predominant tint use the R, G, B Offset adjustment to neutralize, in this case the white level adjustment should be re-checked.

Use P+ / P- to select item and Vol+ / Vol- to change value.

Picture Mode

The predetermined settings for the fixed picture modes can be adjusted using this Menu.
Select the PIC Mode desired to be changed using P+ / P- and Vol+ / Vol-change the value as required.

Source: SCART
PIC Mode: Standard
Contrast 42
Brightness 48
Color 45
Sharpness 42

Text Brightness

The three predetermined levels set for Teletext brightness control can be adjusted in this menu.

Use P+ / P- to select item & Vol+ / Vol-to change value.

MAX 63
MID 42
MIN 21

Factory Reset

In certain circumstances it might be useful to restore the memory to the default conditions
preset within the system bios.
To do this enter the main factory menu and select the "Factory Reset" option.
Press vol+ to proceed with the initialization.
This reset does not affect the ADC calibration or the White balance adjustment settings,
nor does it clear the stored RF channels.

OPTIONS & SETTINGS

The table below shows the correct factory settings for this model.
Some of these items may need to be restored if a ‘Factory Reset’ is performed.

How to disassemble HP laptop - HP Mini 1000 Netbook – Disassembling procedure – How to remove the top cover – how to remove the battery

HP Mini 1000 Netbook Disassembling procedure 

How to remove Device feet
The device feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare part number 504613-001. There are 4 rubber feet that are installed on the base enclosure in the locations illustrated below.

How to remove Battery

Before disassembling the device, follow these steps:
1. Shut down the device. If you are unsure whether the device is off or in Hibernation, turn the device on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the device.
3. Disconnect the power from the device by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the device.
Remove the battery:
1. Turn the device upside down on a flat surface, with the battery bay toward you.
2. Slide the battery release latches (1) to release the battery.
3. Pivot the battery (2) upward and remove the battery (3) from the device.

How to remove Memory module

Before removing the memory module, follow these steps:
1. Shut down the device. If you are unsure whether the device is off or in Hibernation, turn the device on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the device.
3. Disconnect the power from the device by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the device.
4. Remove the battery
Remove the memory module:

1. Slide the right battery release latch to the inside or “unlocked” position to reveal the release latch for the memory module compartment cover. Use a thin, narrow tool to slide the release latch to the outside or “unlocked” position (1). (The edge of the cover rises away from the device.)
2. Remove the cover (2). The memory module compartment cover is included in the Plastics Kit, spare part number 507317-001.

3. Spread the retaining tabs (1) on each side of the memory module slot to release the memory module. (The edge of the module opposite the slot rises away from the device.)

4. Remove the memory module (2) by pulling the module away from the slot at an angle.

How to remove Keyboard

Before removing the keyboard, follow these steps:
1. Shut down the device. If you are unsure whether the device is off or in Hibernation, turn the device on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the device.
3. Disconnect the power from the device by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the device.
4. Remove the battery
Remove the keyboard:
1. Remove the Phillips PM1.6×4.0 screw (1) and the Phillips PM1.6×6.0 screw (2) that secure the keyboard to the device.

2. Turn the device display-side up, with the front toward you.

3. Open the device as far as possible.

4. Grasp the tabs on the outer edges of the keyboard (1), lift the rear edge of the keyboard (2) until it rests at an angle, and then slide it back (3) until it rests on the display assembly.

5. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached, and then disconnect the cable (2) from the system board.

How to remove Top cover

Before removing the top cover, follow these steps:
1. Shut down the device. If you are unsure whether the device is off or in Hibernation, turn the device on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the device.
3. Disconnect the power from the device by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the device.
4. Remove the battery
5. Remove the keyboard
6. Remove the hard drive or solid-state drive
Remove the top cover:
1. Turn the device upside down, with the front toward you.
2. Use a thin, flat tool to remove the four screw covers (1).
There are three different variations of the covers, each of which is shaped like a rounded square:

The two front covers are short in height and are notched to prevent incorrect insertion.
The right rear cover is taller in height and is notched.
The left rear cover is taller in height and is not notched.
3. Remove the four Phillips PM2.5×7.0 screws (2) that secure the top cover to the base enclosure.

4. Turn the device right-side up, with the front toward you.

5. Open the device as far as possible.
6. Remove the Phillips PM2.0×4.5 screw (1) and the Phillips PM2.5×5.0 screw (2) that secure the top cover to the base enclosure.

7. Lift the rear edge of the top cover (1), swing it up, and then slide it back slightly to rest against the display assembly (2) at an angle

8. Release the ZIF connector (1) to which the TouchPad button board cable is connected, and then disconnect the cable (2) from the system board

Philips AZ380, AZ380S CD Soundmachine Schematic, Exploded view, wiring diagram

Used ICs - D8227[Power Amplifier], S14831[AM/FM], D117[3v3 regulator], M5673[RF AMP/SERVO], SCA4270[Motor Driver]

Exploded view

Layout

Schematic

Wiring diagram

Apple AirPort Extreme – Disassembling procedure – How to replace the backup Battery

Disassembling procedure - Outer Case

First start by peeling off the outer rubbery covering on the bottom of the device.
CAUTION: This part is very fragile, so it is recommended that a blow dryer is used on the covering to heat it up. Simply blow dry the covering while slowly peeling it away, and the covering will not tear.

After removing the rubber covering, unscrew the five 4.9mm Phillips screws in the holes of the plastic casing.

After unscrewing all five screws, remove the plastic casing. The back should now look like the picture shown.

The inner metal casing is latched inside the outer white plastic shell, so insert a pry tool underneath the metal casing and pry it apart from the shell. It should make a click when it comes apart.

Remove the outer casing. The exposed logic board should look like this.

Remove the metal casing by gently prying the logic board away with you hands.

This should be pretty easy; you already removed the screws holding these pieces together.

Remove the battery by gently "shoving" it out with the plastic tool.

Hitachi LS42S504 LCD TV – How to enter the service mode, software update, 715G3196 1B poawer board[SMPS] schematic.

This specification applies to the 42.0 inch Color TFT-LCD Module T420HW06 V5. This LCD module has a TFT active matrix type liquid crystal panel 1,920x1,080 pixels, and diagonal size of 42.0 inch. This module supports 1,920x1,080 mode. Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal and Frame Rate Control (FRC) for each dot.
The T420HW06 V5 has been designed to apply the 10-bit 2 channel LVDS interface method. It is intended to support displays where high brightness, wide viewing angle, high color saturation, and high color depth are very important.

Firmware Upgrade

Use PC to write software to a flash storage, press “on” button to start the TV. (Take L46S603 for example)
1. Insert the flash storage into the USB port, and you will see a picture in which you can choose “YES” or “NO” (Picture1), you choose “YES”, and then the software will update automatically.
2. After software update is finished, you put out the flash storage and restart the TV.
3. Press “menu+1999+select”, check whether software version is ok.

ADC Adjustment
Ⅰ . In the TV mode adjust volume to zero, press menu key and then press number key 1  9  9 9. [Service mode]. It will achieve the factory mode. Select the item of White Balance and press right key to enter it.

Change TV, press the item “Current Source” to Component mode and change signal to 1080i mode, press the item “Auto Color”; Change TV, press the item “Current Source” to PC mode and change signal to PC TIMING 137(1024X768) Pattern 147 (16 Grays), press the item “Auto Color”

White Balance, Luminance Adjustment
Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment.
Before started adjust white balance, please set the Ca210 Channel to 05 Channel and set it’s mode to xyLv mode.

The tolerance of the Cold color coordinates should be less than ± 10; The tolerance of the Normal color coordinates should be less than ± 20; The tolerance of the Warm color coordinates should be less than ± 20;

How to setting the Ca210 channel.

you can reference to Ca210 user guide or simple use the “Memory CH” up or down to set the channel to 05 channel, and use the “Mode” key to set the mode to xyLv.
Following is the procedure to do white-balance adjust

[can use the HDMI white balance adjustment to cover the white balance of all source modes, this method is meeting to the Zoran 785 software.]

HDMI Mode:
Ⅰ . In the TV mode adjust volume to zero, press menu key and then press number key 1 9  9 9. It will achieve the factory mode. Select the item of White Balance and press right key to enter it.

715G3196 SMPS board schematic

Before to adjust the white balance, please press the factory mode OSD of “Reset” to reset all white balance factory setting.

In the White Balance you can adjust 8 items.
1 > R Offset, G Offset, B Offset Æ R, G, B Offset adjust.
2 > R Gain, G Gain, B Gain Æ R, G, B Gain adjust.
3 > ZR-Bright adjust;
4 >ZR-Contrast adjust;
5 >ZR-T ÆColor Temp adjust;

Gain adjustment:

Adjust Cool color-temperature:
1. Set the pattern generator to pattern 104 or 0 IRE pattern. And adjust the Item “ZR-Bright” to min luminance.

2. Switch the Ca210 to xyLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show x =272, y =278, Lv can adjust to max luminance.
5. Use the item R Offset and B Offset adjust to Adjust black balance: use 20 IRE(Pattern 190) signal, and adjust the black balance, until the Ca210 show x =272, y =278.
6. Use the item R Gain and B Gain to adjust white balance: use 100 IRE (Pattern 105) signal, and adjust the white balance, until the Ca210 show x =272, y =278.
7. Adjust item “ZR-Contrast” to check color temperature is saturation or not: Add by 7 steps and then to adjust the item R Gain and item B Gain to check the color temperature is saturation or not, until is saturation.
8. Enter the item “Color Temp” to select another color temperature to adjust.

Adjust Normal temperature:
1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min luminance
2. Switch the Ca210 to T△uvLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show T=9300K.
5. Adjust the Color Temp item: Normal, until Ca210 indicator reached the value T=9300k.

Adjust Warm color-temperature:
1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min luminance
2. Switch the Ca210 to TuvLv-mode (with press “MODE” button)
3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)
4. The LCD-indicator on Ca210 will show T=6500K.
5. Adjust the Color Temp item: Warm, until Ca210 indicator reached the value T=6500k.
Press “Exit” button on remote control to quit from factory mode.

NOTE 1
If you choose to do EEPROM Initialization (EEPROM Init), you MUST write down all White Balance values before doing so. These values will be reset to a default value.
All white balance factory adjustments will be LOST. It can be done as a NOTE anywhere in same page, please.
NOTE 2
Activating Reset to Default Settings (Reset to Def) will zero BOTH hour counters, the one for back light time and the one for Total time.

How to enter the service mode – Panasonic TX23LX50M, Schematic diagram

Panasonic TX23LX50M, Panasonic TX23LX50A, Panasonic TX23LX50X – service mode, schematic diagram

Service Mode Function
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be
adjusted by remote control in Service Mode.

How to enter SERVICE 1
1. In sound menu, set BASS to MAXIMUM, and set TREBLE to MINIMUM.
2. Simultaneously press INDEX button on remote control and DOWN button [ ] on the TV set.

How to enter SERVICE 2
1. Set the channel to CH99.
2. Select the “Sub-Brightness” under Service 1.
3. Press HOLD button on remote control.
Note:
To exit to Service mode, press N button on remote control.

Option Code Setting
If the memory IC (IC1103) or A Board is replaced, option code should be re-memorized.
Spare part of IC1103 is already memorized all Data for TX-23LX50M.
If you use for other model, you should re-memorized the different option code in SERVICE 2.

 Schematic Diagram