JVC AV-14F703 COLOR TV – HOW TO ENTER THE SERVICE MODE, ADJUSTMENTS, PASSWORD UNLOCK, CIRCUIT DIAGRAM

AV-14F703 JVC color TV – how to enter the service mode, adjustments, password unlock, circuit diagram

On-Screen Display Adjustment
In the condition of NO indication on the screen.
Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode.

Use the Channel UP/DOWN button or Channel button (0- 9) on the remote control to select the options.

Press the MENU button on the remote control to end the adjustments.

CONSTANT VOLTAGE
Set condition is AV MODE without signal.
Connect the digital voltmeter to the TP002.
Adjust the VR502 until the DC voltage is 115 ± 1V.

RF AGC

Place the set with Aging Test for more than 15 minutes.
Receive the VHF HIGH (63dB).
Connect the digital voltmeter between the pin 5 of CP101 and the pin 1 (GND) of CP101.
Activate the adjustment mode display and press the channel button (02) on the remote control to select “RF AGC”.
Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.4 ± 0.05V.

CUT OFF

Adjust the unit to the following settings.
G. DRIVE=64, B. DRIVE=64, R. BIAS=32, G. BIAS=32, B. BIAS=32
Place the set with Aging Test for more than 15 minutes.
Activate the adjustment mode display and press the channel button (01) on the remote control to select “CUT OFF”.
Adjust the Screen Volume until a dim raster is obtained.

WHITE BALANCE

NOTE: Adjust after performing CUT OFF adjustment.

Place the set with Aging Test for more than 10 minutes.
Receive the gray scale pattern from the Pattern Generator.
Using the remote control, set the brightness and contrast to normal position.
Activate the adjustment mode display and press the channel button (13) on the remote control to select “R. BIAS”.
Press the CH. UP/DOWN button on the remote control to select the “R. BIAS”, “G. BIAS”, “B. BIAS”, “B. DRIVE” or “G. DRIVE”.
Adjust the VOL. UP/DOWN button on the remote control to whiten the R. BIAS, G. BIAS, B. BIAS, B. DRIVE, and G. DRIVE at each step tone sections equally.
Perform the above adjustments 5 and 6 until the white color is looked like a white.

SERVICE MODE

This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter the Service Mode, press both set key and remote control key for more than 1 second.

CONFIRMATION OF HOURS USED

POWER ON total hours can be checked on the screen.
Total hours are displayed in 16 system of notation

NOTE: If you set a factory initialization, the total hours is reset to “0”

Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
After the confirmation of using hours, turn off the power.

Circuit diagram (Schematic)

REPLACING EEPROM (MEMORY) IC

If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE below.

Enter DATA SET mode by setting VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
ADDRESS and DATA should appear as FIG shown below.

ADDRESS is now selected and should “blink”. Using the VOL. UP/DOWN button on the remote, step through the ADDRESS
until required ADDRESS to be changed is reached.
Press ENTER to select DATA. When DATA is selected, it will “blink”.
Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
Repeat steps 3 to 6 until all data has been checked.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

The unit will now have the correct DATA for the new MEMORY IC.

LG BP620 BLU-RAY PLAYER - REGION CODE - UNLOCK - PASSWORD RESET

LG BP620 BLU-RAY PLAYER - REGION CODE - UNLOCK - PASSWORD RESET

REGION CODE
This unit has a regional code printed on the rear of the unit. 
This unit can play only BD-ROM or DVD discs labeled same as the rear of the unit or “ALL”.

Area Code

Enter the code of the area whose standards were used to rate the DVD video disc, based on the list.

If you forget your password

If you forget your password, you can clear it using the following steps:

1.  Remove any disc that might be in the player.

2.  Select [Password] option in the [Setup] menu.

3. Use Number buttons to enter “210499”. The password is cleared.

[If you make a mistake before pressing ENTER, press CLEAR. Then input the correct password.]

DVD Rating

Blocks playback of rated DVD based on their content. (Not all discs are rated.)

[Rating 1-8]

Rating one (1) has the most restrictions and rating eight (8) is the least restrictive.

[Unlock]

If you select [Unlock], parental control is not active and the disc plays in full.

Blu-ray Disc Rating

Set an age limit of BD-ROM play. Use number buttons to input an age limit for BD-ROM viewing.

[255] All BD-ROM can be played.

[0-254] Prohibits play of BD-ROM with corresponding ratings recorded on them.

SAMSUNG MX-C730 - MX-C630 - HOW TO SET BUYER REGION CODE

SAMSUNG MX-C730 - MX-C630 - HOW TO SET BUYER REGION CODE

REGION CODE SETTINGS & REGION CODES

[1] Press the “AUX” button on the remote control.

[2] Press the “ANGLE” button on the remote control during 4~5 seconds.

[3] After step (2), you can see “TEST − −” on the VFD. Insert number “33”, “33” to select Region Code.

[4]  After step (3), you can see “− −” on the VFD.  Insert the Region Code corresponding model with “0 ~ 9” buttons on the remote control.

[5] Turn the Power off.

REGION CODES

SAMSUNG HT-Z120 - HT-Z120T/XET - HOW TO SET BUYER REGION CODE - OPTION TABLE

SAMSUNG HT-Z120 - HT-Z120T/XET - HOW TO SET BUYER REGION CODE - OPTION TABLE

BUYER REGION CODE SETTING

* Turn on the set.  Press the ‘PORT’ button to change to USB function.

* Insert any kind or USB memory stick or MP3 player.

* Press ‘Stop’ button on the remote control [twice in case that a music or a video is playing]

* “Remove USB” appears on the VFD, the keep press ‘4’ button on the remote control. [Don’t pull out the USB stick]

* “TEST” appears on the VFD, then press ‘3’ ‘3’ on the remote control.

* “— ‘ appears on VFD, then press the two digit on the remote control according to the region code in the option table.

*The set automatically power off and the region setting is completed now.

When replacing the main PBA and system micom [UIC1] should be inserted the region code.  The set will not work properly if you don’t insert the region code.  The region code is inserted by the remote control.

OPTION TABLE

SONY HCD-HX3/HX5/HX7 HOW TO RESET – SERVICE MODE - TEST MODE - UNLOCK - SONY HCD-HX3/HX5/HX7

HOW TO RESET – SERVICE MODE - TEST MODE - UNLOCK - SONY HCD-HX3/HX5/HX7

SERVICE MODE

CD SERVICE MODE

This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the optical pick-up.

Procedure:

1. Press the POWER button to turn the power on.

2. Press the [FUNCTION]button to select “CD” (HX3/HX7). Press the [CD] button on the remote commander to select “CD” (HX5).

3. Press three buttons of [SEARCH], + and EJECT simultaneously, the message “SERVICE MODE” is displayed on the fluorescent indicator tube.

4. Press the – button to move the optical pick-up to inside track and the message “SLED IN” is displayed on the fluorescent indicator tube, or press the + button to outside track and the message “SLED OUT” is displayed on the fluorescent indicator tube.

5. Press the [DSGX] button, “LD ON” or “LD OFF” is displayed on the fluorescent indicator tube. Each time [DSGX] button is pressed, laser diode on/off is changed over.

6. To release this mode, press the POWER button.

BT TEST MODE (HX5/HX7)

This mode is used to check the firmware version and address of bluetooth module.

Procedure:

1. Press the POWER button to turn the power on.

2. Press the [FUNCTION] button to select “BLUETOOTH” (HX7).  Press the [FUNCTION] button on the remote commander to select “BLUETOOTH” (HX5).

3. Press three buttons of [SEARCH], – and [BLUTOOTH OPR] simultaneously, the message “BT Test” is displayed on the fluorescent indicator tube. Then, the display is automatically changed to the firmware version of bluetooth module.

4. Press the [DISPLAY] button, address of bluetooth module is displayed on the fluorescent indicator tube.

5. To release this mode, press the POWER button.

PANEL TEST MODE

This mode is used to check the fluorescent indicator tube, LED, model, destination, software version and key.

Procedure:

1. Press the POWER 1button to turn the power on.

2. Press three buttons CANCEL, [DSGX] and EJECT simultaneously.

3. All segments on the fluorescent indicator tube and [STANDBY]LED light up.

4. Press the [DSGX] button, the model and destination are displayed on the fluorescent indicator tube.

5. Press the [DSGX] button again, MC version is displayed on the fluorescent indicator tube.

6. Each time [DSGX] button is pressed, the display changes starting from MC version, GC version, USBL version (HX3/HX5 only), USBM version (HX3/HX5 only), BT version (HX5/HX7 only), CD version, CDD version, CDMA version, CDMB version, BDA version, BDB version, ST version, TA version and TM version this order, and returns to the MC version display.

7. When [SEARCH] button is pressed while the MC version is displayed, year, month and day of the software creation is displayed. When [SEARCH]button is pressed again, the display returns to the MC version display.

8. Press the [ENTER] button, the key test mode is activated and “K 0 V0” is displayed on the fluorescent indicator tube.

9. Each time a button is pressed, “K” value increases. However, once a button is pressed, it is no longer taken into account. All keys are pressed, display becomes “K17” (HX3) or “K18” (HX5/HX7).

10.“V” value increases 2, 4, 6 ... if turn the [VOLUME] knob clockwise, or it decreases 8, 6, 4 ... if turn the knob counterclockwise.

11.To release this mode, press three buttons in the same manner as step 2, or disconnect the power cord.

TUNER STEP CHANGE

(HX3: Canadian/HX5: Canadian, Australian, Korean/HX7)

A step of AM tuning interval can be changed over between 9 kHz or 10 kHz.

Procedure:

1. Press the POWER button to turn the power on.

2. Press the [TUNER/BAND]button to select “AM”.

3. Press the POWER button again to turn the power off.

4. Press two buttons of [TUNER/BAND] and POWER 1simultaneously.

5. The message “AM 9kHz Step” or “AM 10kHz Step” is displayed on the fluorescent indicator tube and thus the tuning interval is changed over.

CD SHIP MODE

This mode moves the optical pick-up to the position durable to vibration.

Procedure:

1. Press the POWER button to turn the power on.

2. Press the [FUNCTION]button to select “CD” (HX3/HX7).  Press the [CD] button on the remote commander to select “CD” (HX5).

3. Press two buttons of [SEARCH] and POWER simultaneously.

4. After the “STANDBY” display blinks, “LOCK” is displayed on the fluorescent indicator tube, and the ship mode is set.

CD SHIP MODE & MEMORY CLEAR

This mode is used to perform CD ship mode and cold reset simultaneously.

Procedure:

1. Press the Power button to turn the power on.

2. Press three buttons of [SEARCH], [DSGX] and POWER simultaneously.

3. After the “STANDBY” display blinks, “LOCK” is displayed on the fluorescent indicator tube, the ship mode is set and the system is reset.

ANTI-THEFT LOCK MODE

This mode is used to unable to take sample disc out of disc tray in the shop.

Procedure:

1. Press the POWER button to turn the power on.

2. Press the EJECT button to open the disc tray and set the CD disc.

3. Press the EJECT button to close the disc tray.

4. Press two buttons of CANCEL and EJECT for 5 seconds.

5. The message “LOCKED” is displayed on the fluorescent indicator tube and the disc tray is locked. (Even if pressing the EJECT button, the message “LOCKED” is displayed on the fluorescent indicator tube and the disc tray is locked)

6. To release from this mode, press two buttons of CANCEL and EJECT for 5 seconds.

7. The message “UNLOCKED” is displayed on the fluorescent indicator tube and the disc tray is unlocked.

COLD RESET

The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.

Procedure:

1. Press three buttons CANCEL , [DSGX] and POWER  simultaneously.

2. The system is reset and becomes standby states.

CD POWER MANAGE

This mode is used to changed over CD power on/off for decreasing of reception noise in the tuner mode.

Procedure:

1. Press the POWER 1button to turn the power on.

2. Press the [FUNCTION]button to select “CD” (HX3/HX7). Press the [CD] button on the remote commander to select “CD” (HX5).

3. Press the POWER button again to turn the power off.

4. Press two buttons of CANCEL and POWER simultaneously.

5. The message “CD POWER ON” or “CD POWER OFF”is displayed on the fluorescent indicator tube, and CD power on/off is changed over in the tuner mode.

HOW TO UNLOCK_RESET - ANDROID MOBILE PHONES

HOW TO UNLOCK_RESET - ANDROID MOBILE PHONES

UNLOCK_RESET PROCEDURE

  On android phones you can activate a feature called pattern lock. This feature can be compared to a windows computer asking for password after the screen saver kicked in; only instead of a password you use a pattern. You get a screen with 9 dots and you draw a pattern of your choice with 4 of them. If you forget your pattern (or have kids that likes to play with phones) you will after 3 faulty attempts be unable to use the pattern to unlock it. Instead you are asked for your Google account and password (that is setup with the phone of course). This is where the problem starts. For many, many users providing the username and password won’t change a thing. for some people changing the password via a computer has worked but that is uncommon. Have no fear; there are solutions to almost everything.

Unlock android phones

1. Try entering null as password. (Together with your Google username)

2. Try entering your username without @gmail.com

3. Combine 1 and 2

4. Call yourself from another phone, answer, without hanging up press the home button, then menu button, settings, try to disable pattern-lock

5. Call yourself from another phone, answer, hang-up, directly after hanging up start pressing your buttons like a madman for <30-60 seconds ending with your home button (might take a while to get the timing right). go into settings and disable pattern-lock.

6.  Try the normal recovers password routine from gmail.com and start over from 1.

7. Perform a factory reset. you will lose all not-synced data (sd card will be left untouched).1-6 are possible workarounds, these doesn't work for everyone but can be worth a try to avoid factory reset.6.is what should work but hardly never does. 7-The factory reset always work.

End update

 In this case the solution is to make a factory reset (sometimes referred to as hard reset or wipe). This will erase all data on your phone (not on your sd-card). Your contacts and mails should be in sync with the Google servers, no problem there then. Downloaded applications needs to be installed again but there is a list of your previous downloads in the android market->my downloads. Other things though are lost if you haven’t backed them up manually with a 3-rd party application. Example on things you will lose: call logs, text messages, application settings.

This is the 3 step solution.  Factory reset your phone (links to android device manuals can be found below, it differs between devices)  Setup your phone just like you did the first time you unpacked it (use the same Google account if you want your old contacts back)  Restore any manual back-ups and install your previous applications from the my downloads list.  How do I factory reset? HTC leads the way and put this information in their manuals.

Samsung Galaxy [Note old galaxy i7500, Galaxyes further down]

1 Turn Off your Galaxy.  2 Hold Volume Dn+Call+Power button.  3 After boot, press the Menu button to start recovering.

Sony Ericson x10 -mini, pro etcetera

Go to: www.sonyericsson.com

Click the support tab and then download software

Download the update service application.  Run the application as administrator, choose your model and follow the instructions.

Micromax a25,a54,a57,a60&a89 (confirmed)

Press and hold volume up + home button and power on/off shows the android logo

Press home button one time

Entering android system recovery mode…

Use “Volume” key to select ‘Wipe data/factory reset.

Karbon android a2

Turn off your phone

Push and hold [volume up]+[volume down]+[power]

Follow the instructions to get into recovery mode and then choose factory reset.

lg nexus 4

Make sure your device is turned off, pull the battery if needed

Push and hold: "volume down" + "power"

Push "volume down" twice and then select with "power" taking you to the recovery menu.

Follow the instructions in the recovery menu and make your way to wipe data/factory reset.

Sprint (Samsung) epic 4g and Samsung galaxys

 With your phone turned off. pull the battery out and reinsert it if needed.

Press and hold "volume down" button

Press and release the "power" button (while still holding "volume down"

Your phone should now boot to a menu where you can choose fastboot, recovery, clear storage, or simlock

Select clear storage by pressing the "volume down" button

Press the "power" button

Confirm your decision with "volume up" (cancel with "volume down")

Motorola [Nextel] i1 – now confirmed working.

Make sure your device is turned off, pull the battery if needed

Push and hold: "volume up" + "volume down"+"call"+"center button.

Press ‘Power’

Motorola Droid [a.k.a milestone]

Turn droid off.  If won’t turn off, take the battery out, then place it back in.  Open the keyboard and press the ‘X’ key while pressing and holding the ‘Power’.  The device will power ON.  Keep holding the buttons down until a yellow triangle appears.  Press the camera & volume up buttons simultaneously to get to the menu.  Use direction pad to the right of the keyboard to select the ‘format’ option.

Nexus one: Turn the phone off.  If it is frozen in the ON state, pull the battery.  Press & hold both Home and Back buttons together.  While continuing to hold these buttons, press the Power button.  Release Home & Back.  Follow the instructions on the screen to complete the hard reset.

T-Mobile.  If you want to do a hard reset but can't do it through the menu, please use the update from t-mobile UK website.