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DISASSEMBLE PROCEDURE - TCL LCD32B5H - 32" LCD TV - THOMSON 32" LCD TV

July 8, 2013, 12:41 am
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DISASSEMBLY
Remove the stand. Remove the screws marked in red.
Remove the back cover.  Remove the screws marked in red.
Remove the shield.  Remove the screws marked in red.
Remove the boards.  Remove the screws marked in red and disconnect the connector or wire.
Remove the plates.  Remove the screws marked in red.
Panel

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TCL - HiD 4321H - MAIN POWER SUPPLY REGULATOR [SMPS] - SCHEMATIC DIAGRAM [Circuit Diagram] - Service Mode - Universal Remote Control Set-up Codes

July 8, 2013, 1:17 am
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SMPS SCHEMATIC
  • CHASSIS DESCRIPTION:

HiD4321H adopts  PHILIP’s  TDA9321,  TDA9332  I2C TV

Processing chip and Piexlworks PW1230 progressive chip for 60Hz\85Hz progressive. Its CPU adopts Toshiba TMP87PS38N software was masked into chips by OTP, modifications may subject to feedbacks from production or from market.
  • It supports DTV and VGA:

DTV supports 1920×1080i/50Hz/60Hz (HDTV2  HDTV6) 525P;
VGA supports 640×480/60Hz、SVGA 800×600/60Hz.
Output of horizontal frequency is fixed at 33.75KHz. 
Adjustment of geometry and convergence should be in three modes:
HiD1(60Hz Processing), HiD2 85Hz Processing. HDTV (16:9).
  • ALIGNMENT INSTRUCTION [Service Mode Entry]

The chassis layouts in I2C bus structure a majority of status could be adjusted through manufacture menu.
You could enter manufacture menu by taken following steps: to be sure that PIP is off, and press  “EXCHANGE” “SHIFT” “STILL” swiftly, then press “MENU”. To exit factory menu, press “DISPLAY”.

Universal remote control set-up codes: 1258 0727 0806 0826 0412 0698

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TCL - 21V12S - SCHEMATIC DIAGRAM [Circuit Diagram] Using ICs - LA76931 – STV9302 – AS1213 – LA4266 (LA4267) – 24C16

July 8, 2013, 1:49 am
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SCHEMATIC DIAGRAM [Full]
{Click on Schematics to Zoom In}
Power Supply [SMPS]

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TCL MR-29TF 19RCA - POWER SUPPLY SCHEMATIC [SMPS] - CRT PWB SCHEMATIC

July 8, 2013, 2:13 am
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MAIN POWER SUPPLY SCHEMATIC
TDA 8809 SECTION
Click on Schematics to Zoom In

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HOW TO REPLACE KEYBOARD & REMOVE MIDDLE COVER - ACER ASPIRE 4920

July 8, 2013, 6:55 am
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Before removing the keyboard, remove the battery out from the unit.
  • Turn base unit over.
  • Slide the battery lock/unlock latch to the unlock position (1).
  • Slide and hold the battery release latch to the release position (2).
  • Remove the battery from the main unit (3).
Keyboard removal
  • Press the plastic flat-blade screwdriver to the notches, shown below, to disengage the keyboard from the main unit.
  • Carefully pry up and out the keyboard and turn it over.
  • Disconnect the keyboard cable from the main board to remove the keyboard.
MIDDLE COVER REMOVAL
  • Open the LCD screen all the way to facilitate the easy removal of the middle cover.
  • Carefully insert the flat screwdriver between the middle cover and lower case and gently pry up the middle cover.
  • Continue prying the middle cover until the full length of the cover releases from the main unit, then turn it over.
  • Using a plastic flat-blade screwdriver, pry open the connector plate then detach the media board cable from the media board.
  • Detach the power board cable from the power board, and then remove the middle cover.

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HOW TO DISASSEMBLE SONY VAIO PCG-SR27 - PCG-SR27K - DISASSEMBLY PROCEDURE - Pictures

July 8, 2013, 9:48 am
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DISASSEMBLY
REMOVAL OF KEYBOARD UNIT
{Click on pictures to Zoom In}
TOUCH PAD [R] SPEAKER & SWX-61 BOARD
HARD DISC DRIVE
SPEAKER [L] & IFX-125 BOARD
FRAME ASSY' & COOLING FAN
MAIN BOARD ASSEMBLY
MBX-44 _ IFX-124 _ DDC-3 BOARDS & V/L RECHARGEABLE BATTERY
CNX-107 BOARD
DISPLAY ASSEMBLY
LCD SECTION _ HOUSING
MICROPHONE _ LCD ASSEMBLY _ INVERTER UNIT & ANL-24 BOARD

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AIWA TV-C1300 - TV-CN140 - SCHEMATIC DIAGRAM [Circuit Diagram] - ICs STR 301010 – M 37272 – SLA 24C04 – NJM 2233BL – TC 4052BP – LA 4600 – [ENV56074G3-Tuner] - Click on diagrams to Zoom In

July 8, 2013, 8:14 pm
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Schematic Diagram [Full]

Power Supply only [SMPS]

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SYSTEM RECOVERY - SONY VAIO - SUPPORT AGENT

July 8, 2013, 10:03 pm
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SYSTEM RECOVERY
Using the System Recovery CD(s)
   You can use the System Recovery CD(s) to reinstall the operating system and software titles that shipped with your notebook if they become corrupted or erased. You may not need to reinstall the entire contents of your hard drive. If you experience a problem with your notebook, reinstalling an individual device driver or software title may correct the problem. Use the Application Recovery CD(s) to reinstall individual applications or use the Driver Recovery CD to reinstall device drivers. See “Using the Application Recovery CD(s)”for more information.
   The System Recovery CD contains a backup copy of all the software originally installed on your hard disk drive. It can be used only to recover the hard disk of the notebook you purchased.
   The System Recovery utility gives you Full Restore with Format, that is it formats the hard disk drive then restores all the original software.


   Full Restore with Format removes all the information on the hard disk drive. You will lose any software you have installed and any other files you have created since you started to use your notebook. This means you will have to reinstall any applications that were not included with the notebook when you purchased it. If you have any questions on using the System Recovery CD, contact Sony Customer Support.
To use the System Recovery CD(s)
  • Insert the Sony System Recovery CD in the optical drive.
  • Shut down your notebook as described in “Shutting Down Your Notebook”.
  • Wait four seconds then turn on your notebook.
  • Click OK to signify you have read and accept the Microsoft End-User License Agreement.
  • When the System Recovery menu appears, follow the on-screen instructions to complete the recovery process.
If your notebook does not start from the Recovery CD
  • Press the power button and hold it for more than four seconds to turn off the notebook.
  • Turn on the notebook. When the Sony logo is displayed, press the F2 key. The BIOS setup menu screen appears.
  • Press the arrow keys to select the Exit menu.
  • Press the arrow keys to select “Get Default Values” then press the Enter key. The message “Load default configuration now?” appears.
  • Check that “Yes” is selected, then press the Enter key.
  • Press the arrow keys to select “Exit”(Save Changes) and then press the Enter key. The message “Save configuration changes and exit now?” appears.
  • Check that “Yes” is selected, then press the Enter key. The notebook restarts from the Recovery CD.
Recovering Microsoft Word 2002
  • If you recover your operating system using the System Recovery CD, Microsoft Word 2002 will not be recovered. Use the supplied Word 2002 CD-ROM to recover this application.
  • Your system may include one or two System Recovery CDs. If you have two System Recovery CDs, insert the first CD to run the System Recovery program. You are prompted to insert the second CD once the information from the first CD has been installed.
  • The recovery process takes from 30 to 60 minutes to complete.
  • After recovering your system using the SRCD, you may be prompted to insert your ARCD after restarting Windows. Insert the ARCD to automatically complete recovery of your system.
VAIO Support Agent
  VAIO Support Agent helps you repair your own software problems without the assistance of a support analyst. VAIO Support Agent's advanced diagnostic technology identifies and tracks characteristics of your software applications and basic network settings. These diagnostics protect and store information in a
retrievable format that enables you to restore your software to a previous working state. Sony has identified the software items that are protected by the VAIO Support Agent utility.
  VAIO Support Agent has three features to help you fix your software problems:
  Quick Fix Wizard, Common Solutions, and Support Central. This section briefly describes these three features, and the automatic update capability of the VAIO Support Agent.
VAIO Support Agent main window.
Using the Quick Fix Wizard
  The VAIO Support Agent records and maintains a history of the VAIO Support Agent protected applications by taking a “snapshot” of the application at regular, timed intervals and storing it for future use. Should a problem develop with one of the protected applications, you can use the Quick Fix Wizard feature to retrieve the date/time (snapshot) that was recorded when the application worked  correctly. The Quick Fix Wizard repairs the protected application files without altering the data files you have created using the application.

To use the Quick Fix Wizard, follow these steps:
  • From the VAIO Support Agent main window, click the Quick Fix Wizard button. The Welcome window appears.
  • Click Next. The “Quick Fix Wizard: Begin VAIO Support Agent Diagnostics” dialog box appears.
  • Select the “Diagnose and fix my software” option.
  • Select the software you wish to repair from the drop-down list. [To view a list of software applications protected by VAIO Support Agent, click on the “Pick the software:” drop-down list.]
  • Next, select a date/time from the drop-down list that corresponds to the last time when the software worked properly.
  • Click “Next” to continue. Follow the instructions on the screen.
Quick Fix Wizard: Begin VAIO Support Agent Diagnostics dialog box
Common Solutions dialog box (1st level)
  • Connect to the Internet before attempting to view the category, “Vaio Support Local Server (http://sdcglobal4.sel.sony.com...).” This category is unavailable without an Internet connection.
  • Click the resize arrows next to the Support Action categories to expand or collapse the categories.

  • Select the appropriate Support Action from the list.
  • Click Run or double-click the desired Support Action. The available Support Actions are shown in bold type. [You cannot undo One-Click Fixes.]
Using Support Central
  • The Support Central feature uses Internet resources to help you fix your software. Support Central searches the Internet for answers to your questions, additional information from knowledge base systems, and the latest software updates for your protected software. Support Central also lets you contact live support agents for additional help.
  • Connect to the Internet.
  • From the VAIO Support Agent main window, click Support Central. The Support Central Welcome page appears. {You must have Internet access to use Support Central.}
Support Central: Welcome page
  • Click Enter Portal to begin using Support Central. First-time users will be asked to register with Support Central.
  • Support Central retains your registration information, so you are only required to register once. If you log on to your notebook with a different user name or have recovered your system using the System Recovery CDs, Support Central may require you to register again.
Support Central: Registration page
Support Central: Current Issues page
  • When you log on to Support Central, the Current Issues page displays, enabling you to continue working on your open issues or to close them if you are finished.
  • Support Central has a tracking feature that stores your current issues, enabling you to return and work on them later. Support Central: Current Issues page
Support Central: Support Wizard page
  • If you log on to Support Central with a new issue, or if you do not have any open issues, the Support Wizard appears. You can begin searching on the new issues. [You must be connected to the Internet to use Support Central.]

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SYSTEM TROUBLEHOOTING - SONY VAIO - Does not Start - Operating System not found - Does not Shut Down

July 8, 2013, 11:35 pm
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TROUBLESHOOTING
  [Windows Me only] When starting your notebook for the first time, the VAIO InitManager dialog box will appear. Please select “OK”to begin initial set-up. If you do not execute the initial set-up, you cannot use part of VAIO original hardware functions such as Jog Dial, Power Management tool, scroll function of touch pad, and keyboard short-cut key function combined with the Fn key.
DOES NOT START
  • Check that the notebook is plugged into a power source and that it is turned on. Check that the power indicator on the front panel of the notebook indicates that the power is on.
  • Check that the battery packs are inserted properly and that they are charged.
  • Make sure there is no diskette in the floppy disk drive.
  • Confirm that the power cord and all cables are connected firmly, as described in “To Connect a USB Device”.
  • If you plugged the notebook into a power strip or UPS, make sure the power strip or UPS is turned on and working.
  • If you are using an external display, check that it is plugged into a power source and turned on. Check that the brightness and contrast controls are adjusted correctly. See the manual that came with your display for details.
  • Moisture condensation may have occurred. Do not use the notebook for at least one hour and then turn on the notebook.
  • Take the battery pack off the notebook, unplug the power cord and plug it again, then turn on the power.
NOTEBOOK STARTS, BUT SYSTEM WON'T
  • When the internal backup battery is low on power, it may not start your system properly. The message “Press <F1> to resume, <F2> to setup” appears at the bottom of the screen. Follow these steps:
  • Press F2. The BIOS Setup menu appears.
  • Set the date (month/day/year). Press Enter.
  • Press ▼ to select System Time, then set the time (hour: minute: second). Press Enter.
  • Press ►   to select Exit, then press ▼ to select Get Default Values. The message “Load default configuration now?” appears.
  • Select "Yes" and press Enter.
  • Select Exit (Save Changes), and then press Enter. The message “Save Configuration changes and exit now?” appears.
  • Select Yes, then press Enter. The notebook restarts.
Notebook starts, but the message “Operating system not found” appears and Windows does not start.
  • Make sure there is no diskette in the floppy disk drive (non-bootable). If a non-bootable diskette is in the drive, follow these steps:
  1. Turn off the notebook, and then remove the diskette.
  2. Restart the notebook and confirm that Windows starts properly.
If Windows still does not start, follow the steps below to initialize the BIOS:
  • Remove any diskette from the floppy disk drive.
  • Turn off the notebook.
  • Remove any peripheral devices connected to the notebook.
  • Turn on the notebook.
  • Press the F2 key when the Sony logo appears. The BIOS set-up menu screen appears.
  • Press the directional arrow keys to select the Exit menu.
  • Press the arrow keys to select “Get Default Values” and then press Enter. The message “Load default configuration now?” appears.
  • Select Yes, then press Enter.
  • Use the directional arrow keys to select “Exit”(Save Changes), and then press Enter. The message “Save configuration changes and exit now?” appears.
  • Select Yes, then press Enter. The notebook restarts.  If your notebook continues to display the message “Operating system not found”, and Windows does not start, contact Sony Customer Support.
STOPS RESPONDING OR DOES NOT SHUT-DOWN
It is best to shut down your notebook using the Shut Down command on the Windows Start menu. Using other methods, including those listed here, may
result in loss of unsaved data.
  • Try restarting the notebook. On the Windows taskbar, click the Start button, click Shut Down, and then click Restart.
  • If you cannot restart as described in the preceding step, you can restart the notebook by pressing Ctrl+Alt+Delete.
  • If the previous step does not work, press and hold the power button for at least four seconds. This turns off the power.
  • If your notebook stops responding while playing a CD, stop the CD, and restart the notebook by pressing Ctrl+Alt+Delete.
  • Unplug the notebook from the AC adapter and remove the battery pack from your notebook.
  • Pressing Ctrl+Alt+Delete or turning off the notebook with the power switch may result in data loss in files that are currently open.
Does not enter the power saving mode (Windows Me only)
To enable your notebook to enter the power saving mode you select, proceed as follows:
  • Click Start, point to Program, point to Accessories, point to System Tools, and then click System Information. The Help and Support window appears.
  • Click System Configuration Utility under the Tools menu.
  • Click the Advanced button on the General tab, and confirm the following information:
  1. The message “Standby function is enabled” is displayed. If the message reads, “Standby function is disabled”, click the Enable button.
  2. The message “Hibernate feature is enabled” is displayed. If the message reads, “Hibernate feature is disabled”, click the Enable button.
  3. Click OK and restart your notebook.
System enters System Idle mode when System Suspend mode has been selected.
  • If you are connecting an optical disc drive with a PC card, disconnect it by stopping the PC card. Use the Sony Notebook Setup utility to disable devices that you are not currently using. See “Removing a PC card” for more information.
  • Make sure the PC Card is compatible with your notebook’s Windows operating system. [(Windows 2000 only) When the notebook enters and returns from a power saving mode after removing the optical drive, the message “Unsafe Removal of Device” may appear and the device name is shown listed as Secondary IDE Channel. Click OK.]
The Power Management setting is not responding.
Your notebook’s operating system may become unstable if a lower power state, such as system hibernation is initiated and then changed before the notebook completely enters the lower power state. To restore the notebook to its normal operating stability:
  • Close all open applications.
  • Push and hold the power button for four seconds or longer to shut down the notebook.
The sound of  notebook’s fan is too loud.
Use the Power Panel utility to change the Thermal Control Strategy setting to Quiet. This setting slows down the CPU speed.
LCD SCREEN TROUBLESHOOTING
LCD screen is blank.
  • Verify that the notebook is plugged into a power source and that it is turned on.
  • Verify that the power indicator on the notebook is on.
  • Verify that the battery pack(s) is inserted properly and that they are charged.
  • The notebook may be in LCD (Video) Standby mode. Press any key to activate the screen.
  • The display mode may be set to external display mode. Press and hold the Fn key while pressing F7 several times.
LCD screen continues to show the previous screen. (Windows Me only)
Press the Windows key and D key twice to refresh the screen.
The image on my connected external display is not centred or sized properly.
Use the controls on your external display to adjust the image.
To change the video resolution of my display.
  • Click Start, point to Settings, point to Control Panel, and then click the Display icon. The Display Properties dialog box appears.
  • Click on the Settings tab.
  • Move the Screen Area slider to change your video resolution.
Mouse does not work.
  • If you are using an external mouse, verify that the mouse is plugged into the mouse connector. See “Connecting a Universal Serial Bus (USB) Device” for details.
  • If you are using an optional Sony USB mouse PCGA-UMS1 series, verify that the mouse is plugged into the USB connector, and restart your notebook.
Touch pad does not work properly.
You may have disabled the touch pad without connecting a mouse to the notebook. To enable the touch pad:
  • Click Start > Programs > Sony Notebook Setup.
  • Select the Touch pad tab.
  • Click Use touch pad and click OK.
If your touch pad is interpreting a single tap as a double-click, adjust the button assignments as follows:
  1. Click Start, point to Control Panel, then double-click on the Mouse icon. The Mouse Properties dialog box appears.
  2. Change the button assignments in the Mouse Properties dialog box. (One of the buttons is assigned to the double-click action.)
Pointer does not move while using the touch pad or mouse.
  • Click the Start button on the Windows task-bar, select Shut Down to display the Shut Down Windows dialog box, then press Enter.
  • (Windows Me): If you cannot turn off your notebook as described in the step above, press Ctrl+Alt+Delete twice to restart the notebook.
  • (Windows 2000): If you cannot turn off your notebook as described in the step above, press Ctrl+Alt+Delete and click Shut Down on the Windows Security screen to restart the notebook.
  • If you cannot restart your notebook as described in the step above, press and hold the power button for more than four seconds to turn off the notebook.
  • If the pointer does not move while playing a disc, press Ctrl+Alt+Delete to stop playback and restart the notebook.
DRIVES _ PC CARDS & REFERRAL DEVICES
  • CD-ROM drive is not playing my CD properly.
  • Make sure the label of the disc is facing up.
  • If the disc requires software, make sure the software is installed according to the manufacturer’s instructions.
  • A dirty or damaged disc may cause the notebook to stop responding while it tries to read the disc. If necessary, restart the notebook, remove the disc, and then check it for dirt or damage.
  • If you are using an optional DVD Rom Drive, and can see video but not hear audio, check all of the following:
  • Check that your DVD-ROM drive does not have the mute setting enabled.
  • Check the volume setting in the audio mixer.
  • If you are using external speakers, check the volume settings, then check the connections between your external speakers and the notebook. VAIO Notebook Quick Start 58
  • Click Start, point to Settings, point to Control panel, then double-click System. The System Properties dialog box appears.
  • Click the Device Manager tab.
  • Verify that the correct drivers are installed properly.
  • Do not use adhesive labels to identify the CD. The label may come off while the disc is in use in the optical drive and cause the drive to malfunction.
  • Moisture condensation may have occurred. Leave the notebook idle for at least 1 hour with the notebook turned on.
Optical drive tray does not open.
  • Make sure the notebook is turned on.
  • Press the Eject button on the optical drive.
  • If the Eject button does not work, open the tray by inserting a thin pen tip in the hole to the right of the Eject button.
Cannot use digital video (DV) devices. The message “DV equipment seems to be disconnected or turned off” appears.
  • Verify that the DV device is turned on and that the cables are properly connected.
  • If you are using multiple i.LINK devices, the combination of the connected devices may cause unstable operation. In this case, proceed as follows:
  1. Turn off your notebook and all connected devices.
  2. Disconnect the devices that are not in use.
  3. Ensure that all other devises are properly connected.
  4. Restart your notebook.
The i.LINK-compatible devices connected to my notebook do not work.
  • Use the i.LINK connector that is located on your notebook.
  • If the message “There are no Digital Video devices connected to this computer, or the power is off” appears, unplug the i.LINK cable and try plugging it in again.

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SOFTWARE TROUBLSHOOTING - SONY VAIO - Voice-related software does not work properly - Modem connection is slow

July 9, 2013, 4:12 am
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WHEN APPLICATION ICON IS CLICKED; A MESSAGE DISPLAYS
   When click an application icon, the message “You must insert the application CD into your optical drive” appears and the software does not start.
  • Some titles require specific files that are located on the application CD. Insert the disc and try starting the program again.
  • Make sure you place the CD in the tray with the label side facing up.
Cannot use the DVgate software.
If your notebook is using the Ultimate Battery Life profile for its power saving mode, you cannot use DVgate or Smart Connect software. You must select another profile.
Voice-related software does not work properly.
Disable the microphone echo function as follows:
  • Click Start, point to Settings, then point to Control Panel.
  • Click Yamaha DS-XG.
  • Click the Echo tab and remove the check-mark. Click OK.
Modem does not work.
  • Verify that the phone line is plugged into the line jack. See “Using a Phone Line” for details.
  • Verify that the phone line is working properly by plugging the line in an ordinary phone and listening for a dial tone.
  • Verify that the phone number the program is dialing is correct.
  • Verify that the software you are using is compatible with the notebook’s modem. (All preinstalled Sony programs are compatible.)
Modem connection is slow.
  The notebook is equipped with a 56K/V.90 compatible modem. Many factors may influence modem connection speed, including telephone line noise or compatibility with telephone equipment (such as fax machines or other modems).  If you think your modem is not connecting properly to other PC-based modems, fax machines, or your Internet Service Provider, proceed as follows:
  1. Have your phone company check that your phone line is free from any line noise.
  2. If your problem is fax-related, check that there are no problems with the fax machine you are calling and that it is compatible with fax modems.
  3. If you are having a problem connecting with your Internet Service Provider, check that the ISP is not experiencing technical problems.
  4. If you have a second phone line available, try connecting the modem to that line.
Speakers have no sound.
  • If the built-in speakers are turned off, press Fn+F3 or use the Jog Dial control to turn on the speakers.
  • If the speaker volume is turned to the minimum, press Fn+F4, then press or to increase the volume or you can use the Jog Dial control to control the volume.
  • If nothing is displayed when you press Fn+F3 or Fn+F4, proceed as follows:
  • Click Start, point to Settings, point to Control panel, then double-click System. The System Properties dialog box appears.
  • Click the Device Manager tab.
  • Set the sound device to enable.
  1. If notebook is powered by batteries, verify that the battery packs are inserted properly and that they are charged.
  2. If you are using an application that has its own volume control, verify that the volume is turned up.
  3. Check the volume controls in Windows.
If you connect external speakers:
  • Verify that the speakers are properly connected and the volume is turned up.
  • If the speakers have a mute button, make sure the button is off.
  • If the speakers are powered by batteries, verify that the batteries are inserted properly and that they are charged.
  • If you have connected an audio cable to the Headphone connector, disconnect the cable.
Cannot print.
  • The default setting for the printer port mode is correct for most printers. If you cannot print, try changing the printer port mode. In Sony Notebook Setup, select the Printer tab. If the printer port mode is set to ECP, change it to bi-directional. If the printer port mode is set to bi-directional, change it to ECP. See “Displaying the Sony Notebook Setup Screen” for details on using Sony Notebook Setup.
  • The  connected printer may not function after the notebook resumes from a power saving mode. If this occurs, proceed as follows to reset the printer connection:
Windows ‘Me’ Only
  • Right-click My Computer icon on the desktop and select Properties.
  • Click the Device Manager tab.
  • Select Refresh, then click OK. The printer should function properly.
Windows ‘2000’ Only
  • Click My Computer icon on the desktop, then click on the Control Panel folder.
  • Click on the Printers folder.
  • Right-click on the icon of the printer that is malfunctioning, then select Properties to access the Properties window.
  • Click OK to close the Properties window. The printer should function properly.
Microphone does not work.
  If you are using an external microphone, verify that the microphone is plugged into the Microphone connector. See “Recording from a Microphone or Audio Equipment” for details.

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DAEWOO DM-K40 - DVD PLAYER - HOW TO UPDATE SOFTWARE - VERSION CHECK

July 9, 2013, 7:08 am
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DISPLAY OF SOFTWARE VERSION NUMBER
  • Press one after the other the “STOP” and “EJECT” buttons on the unit.
  • Press the“OSD” with the remote control.
  • Using the cursor buttons on the remote control, select the software version “MICRO Version” or “CUSTOMER VERSION” .The respective software version number then is displayed.
SOFTWARE UPDATE
  • Create a software upgrade CD
  • Use only a new CD-R/CD-RW (not an erased one).
  • Give the CD a name of your choice (e.g. version and unit name).
  • Burn the unpacked documents on the CD-R/CD-RW.
  • The root directory (uppermost level) of the software upgrade CD 
  • Attention: If a failure should occur during the software upgrade (e.g. a mains failure), it may happen that the unit’s function and a restart of the upgrade function are no longer possible. If this should be the case, you must replace the intergraded FLASH ICs with preprogrammed ICs.
  • Insert the upgrade CD (see corresponding spare parts list) and observe the hints on the display and on the screen of the TV set.
  • Carry out an initialization of the set.

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DAEWOO DVG **** SERIES DVD PLAYERS - SCHEMATIC DIAGRAM - [Circuit Diagrams] - Universal Remote Control Set-up Codes - {Click on diagrams to Zoom In}

July 9, 2013, 8:14 am
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POWER SUPPLY [SMPS]
FRONT CONTROL PANEL
EARPHONE SECTION
VIDEO SECTION
CLOCK SECTION
MEMORY SECTION
CHIP 4318
DIGITAL TO ANALOGUE CONVERTER SECTION
ATAPI SECTION
AUDIO SECTION

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HP COMPAQ PRESARIO - PAVILION - HOW TO RESET - HOW TO REMOVE HARD DRIVE - MEMORY MODULE

July 9, 2013, 9:43 pm
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APPLICABLE T0:
HP Pavilion ze4900 Notebook PC
HP Compaq nx9040, nx9030, and nx9020 Notebook PC
Compaq Presario 2200 Series Notebook
HOW TO RESET
Occasionally, the Windows operating system or the notebook might stop responding, so that you cannot turn the notebook off.
If this happens, try the following in the order listed:
  • Press the power button to restart.
  • If possible, shut down Windows by pressingctrl+alt+del, and then selecting Shut Down > Restart.
  • Press and hold the power button for about 4 seconds until the display shuts down. Then press the power button again to restart.
  • Use a ballpoint pen or a straightened paper clip to press the reset button on the bottom of the notebook.

To boot from a CD, insert a bootable CD (such as a Recovery disc) into the optical drive, and then restart. Press ‘Esc’ when the HP logo appears, and then select the optical drive as the temporary boot device.
COMPUTER SET-UP
Information and settings in Computer Set-up are accessed from the Main, Security, Advanced, or Tools menus:
  • Turn on or restart the notebook. Press  f10  while the F10 = ROM-Based Setup message is displayed in the lower-left corner of the screen.
  • To change the language, use the cursor control keys to navigate to the Advanced menu.
  • To view navigation information, press f1.
  • To return to the Computer Set-up menu, press EsC.Select the Main, Security, Advanced, or Tools menu.
To close Computer Set-up and restart the notebook:
Select Exit > Exit Saving Changes, and then press enter.
 Or
Select Exit > Exit Discarding Changes, and then press enter.
Or
Select Exit > Load Setup Defaults, and then press enter.
When you are prompted to confirm your action, press f10.
DISASSEMBLE PROCEDURE
Before you begin any removal or installation procedures:
  • Shut down the notebook. If you are unsure whether the notebook is off or in Hibernation, turn the computer on and then shut it down through the operating system.
  • Disconnect all external devices connected to the notebook.
  • Disconnect the power cord.
To remove the battery pack by following these steps:
  • Turn the notebook upside down with the front panel toward you.
  • Slide and hold the battery release latch [1] toward the back of the notebook.
  • Use the notch in the battery bezel to slide the battery pack to the left [2].
  • Remove the battery pack.

Remove the hard drive by following these steps:
  • Remove the 2 rubber screw covers [1] that conceal the hard drive retention screws.
  • Spare part number 371808-001 should be used to replace the hard drive rubber screw covers.
  • Remove the 2 PM2.0×6.0 screws [2] that secure the hard drive to the notebook.
  • Use the notch in the hard drive bezel to slide the hard drive forward [3].
  • Remove the hard drive.
  • Remove the 2 PM1.5×5.0 shoulder screws [1] that secure the hard drive bezel to the hard drive.
  • Remove the hard drive bezel [2].
  • Remove the 4 PM2.5×4.0 screws [1] that secure the hard drive frame to the hard drive.
  • Remove the hard drive frame [2].
  • Remove the hard drive connector [3].
MEMORY MODULE REMOVAL
  • Loosen the 2 PM2.0×4.0 screws [1] that secure the memory module compartment cover to the notebook.
  • Lift the back edge of the memory module compartment cover and swing it forward [2].
  • Remove the memory module compartment cover.
  • Spread the 2 retaining tabs [1] that secure the memory module to the memory module socket. (The module rises up).
  • Remove the memory module by pulling it away from the memory module socket at a 45-degree angle [2].


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HOW TO REMOVE HARD DISK - HOW TO REMOVE MEMORY MODULE - HP Pavilion ZV6000 Notebook PC / Compaq Presario R4000 Notebook PC

July 10, 2013, 2:50 am
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HARD DISK REMOVAL
  • Shut down the notebook. If you are unsure whether the notebook is off or in hibernation, turn the notebook on, and then shut it down through the operating system.
  • Disconnect all external devices connected to the notebook.
  • Disconnect the power cord.
HD TYPE & PART NUMBER
5400-rpm = 80-GB 383954-001
5400-rpm = 60-GB 392575-001
4200-rpm = 100-GB 392576-001
4200-rpm = 80-GB 383953-001
4200-rpm = 60-GB 383952-001
4200-rpm = 40-GB 383951-001
  • Loosen the two PM2.0×7.0 screws [1] that secure the hard drive cover to the notebook.
  • Lift the left side of the cover [2] up and swing it to the right.
  • Remove the hard drive cover.
The hard drive cover is included in the Miscellaneous Plastics Kit, spare part number 383670-001.

  • Remove the two PM2.0×7.0 hard drive retention screws [1] that secure the hard drive to the notebook.
  • Slide the hard drive [2] to the right to disconnect it from the system board.
  • Lift the hard drive [3] straight up and remove it from the hard drive bay.
  • Remove the four PM3.0×4.5 screws [1] that secure the hard drive frame to the hard drive.
  • Lift the frame [2] to remove if from the hard drive.
MEMORY MODULE
Capacity & Part Number
1024 MB = 383950-001
512 MB = 383949-001
256 MB = 383948-001
  • Loosen the PM2.0×7.0 screw [1] that secures the memory module compartment cover to the notebook.
  • Lift the rear edge of the cover [2] up and swing it toward you.
  • Remove the memory module compartment cover.
The memory module compartment cover is included in the Miscellaneous Plastics Kit, spare part number 383670-001.
  • Spread the retaining tabs [1] on each side of the memory module socket to release the memory module. (The side of the module opposite the socket rises away from the notebook.)
  • Slide the module [2] away from the socket at an angle.
  • Remove the memory module.
Memory modules are designed with notches [3] to prevent incorrect installation of the module into the memory module socket.

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SHARP LC-42DH77E/RU/S/V - LC-46DH77E/RU/S/V - LED BLINKING CODES - Error Codes _ Universal Remote Control Set-up Codes

July 10, 2013, 6:04 am
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LED BLINKING CODES & FAULTY CIRCUIT SECTIONS TO BE CHECKED
LED flashing method
  • Synchronize the phases of the power LED and OPC LED.
  • If the LEDs have different number of flashings, adjust the flashing cycle to that where the LED flashes more times.
FLASHING PATTERN
ERROR ERR STBY Table
{CLICK ON TABLES TO ZOOM IN}
Lamp failure Flashes once => ERR_PNL(40pin): Abnormal L. 
  • Confirmed after 5 consecutive detections at 1 second intervals (detected only when the backlight is on).
  • Note that after five detection counts, the lamp cannot be activated except in the monitoring process. (For the first time, only the inverter is reset, and error OFF is not activated.)
  • Accumulated counts are cleared to 0 when the setting in the adjustment process is made, when AC_ON is performed with [CH_DOWN] and [VOL_UP] on the unit down or after continuous illumination for 3 minutes.
PS_ON AC_DET failure Flashes once => AC_DET(72pin: Abnormal (L).  If error is detected during start-up or operation, the power is turned on again by interrupt handling (instantaneous blackout processing)
D_POW Main 12V failure Flashes twice => DET_12V(34pin): Abnormal (L). Main 12V is not applied.  If error is detected during start-up or operation, the power is turned on again by polling.
D_POW Digital 3.3V Failure Flashes 3 times => DET_D3V3(35pin): abnormal (L). Digital 3.3V is not applied. If error is detected during start-up or operation, polling turns on the power again.
Communication failure details (Power green LED flashes once and OPC (preset) LED flashes)
Initial communication reception failure Flashes once => Initial communication from the main CPU is not received. (Request for the monitor model No. is not received.) à Communication line failure or main CPU start-up failure.
Start-up confirmation reception failure Flashes twice => Start-up reason confirmation from the main CPU cannot be received. (Startup communication until start-up reason notification command is not received.)  à Main CPU start-up failure or monitor microprocessor reception failure.
Regular communication failure Flashes 3 times => Regular communication that is performed at 1 second intervals in the normal operation is interrupted. àMain CPU operation failure or monitor microprocessor reception failure.
Other communication failure Flashes 5 times => When a request (PM_REQ=H) is sent from the main microprocessor, the request command is not output from the main CPU, etc. à Main CPU operation failure or monitor microprocessor reception failure.
Monitor temperature failure Flashes once => If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears on the OSD (flashes in red in the lower right screen).  If the panel temperature is 60°C or more for 25 seconds or more in a row, error standby is activated. --> Thermistor
Main failure Flashes 3 times => Main microprocessor detection error (CPU temperature error, etc.)
Universal Remote Control Set-up Codes
GE Remote control: 0079 0123 0063 0020 0004 0009 0226 0266 0006 0095 0122
RCA RCR311W: 1004, 1007, 1009, 1015, 1023, 1078, 1083, 1094, 1107, 1123, 1125, 1158, 1182, 1195
RCA RCR312W: 10818, 10093
6 in one Super Remote: 017,022,025,108,124,125
Others: 1246 1224 1221 14291214 1421 1157 1307 1361 1046 1231 1047

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Search

SHARP - 29MU70 - HOW TO ENTER SERVICE MODE - POWER SUPPLY SCHEMATIC - Switching Control IC TEA-1507

July 10, 2013, 10:45 pm
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SERVICE MODE
  • While pressing the Vol ▲ and Ch▲ buttons at the same time, plug the AC cord into a wall socket.
  • Now, the TV set is switched on and enters the service mode.
  • To exit the service mode, turn the television off by pressing the power button.
  • Before putting unit into the service mode, check that customer adjustments are in the normal mode. Use the reset function in the video adjustment menu to ensure customer control is in their proper (reset) position.

In the service mode, you will see the window screen as window 1. There are 4 adjustment categories 2DEF, 3SIGNAL, 4FEATURE, 5FIX VALUE as shown.
  • Press CH ▲, ▼ button for selection and enter by VOL ▲, ▼.
  • Press CH ▲, ▼ button to select the adjustment item and VOL ▲, ▼ to adjust the data number for each categories.

(OSD disturbance can be erased by R/C display key) (Note: EEPROM - factory used only)

Holding down both the Vol▲ / Ch▼ buttons on the TV set at service mode for more than 2 seconds will automatically write  initial values into IC2102.
MAIN POWER SUPPLY SCHEMATIC [SMPS]
{CLICK ON PICTURES TO ZOOM IN}
Universal remote control set-up codes to Sharp Brand TVs, are given by previous post here.

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SHARP LC-42DH77E - LC-46DH77E - HOW TO UPDATE FIRMWARE [SOFTWARE]

July 11, 2013, 11:25 am
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FIRMWARE UPDATE PROCEDURE
  • Turn off the AC power (Unplug the AC power cord).
  • Insert the upgrading USB flash memory for upgrade into the service slot.
  • While holding down the power button plugs in the AC power cord of the main unit to turn on the power.
  • Upgrade begins automatically.  After the set starts, the upgrade screen like the figure below is displayed.
  • If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red.
  • NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.
  • When all the procedures are complete, the following upgrade success screen shows up. The new software version can be confirmed on screen.
  • The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.
  • Turn off the AC power (Unplug the AC power cord). Take out the upgrading USB flash memory.  It waits for about 20 seconds until the AC power supply is turned off.
  • Now the software has been upgraded.
NOTE: Then get the set started and call the process adjustment screen 1/16 to check the main software version.
CAUTION:
  1. Do not take out and put in the USB flash memory during formatting.
  2. It takes about one minute to the rewriting completion. Confirm the upgrade status on the screen becomes 100%.
  3. The AC power supply of the set is waited for about 20 seconds until off (The AC outlet is pulled out) after the upgrade is completed.

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PHILCO PH42M - LCD TV - POWER SUPPLY SCHEMATIC [CIRCUIT DIAGRAM]

July 12, 2013, 1:56 am
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MAIN POWER SMPS

CLICK ON SCHEMATICS TO ZOOM IN
PANEL POWER SCHEMATIC

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XOCECO - INSIGNIA - 19KK44 - LCD TV - HOW TO ENTER SERVICE MODE [FACTORY MODE] - HOW TO UPDATE SOFTWARE

July 12, 2013, 2:38 am
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FACTORY MODE
  • Press key “INPUT”, then press number keys “2,5,8,0” in turn to enter initial class factory menu;
  • Press keys “CH+” and “CH-”, move cursor to each adjustment page of initial class factory menu, then press key “ENTER” to enter into adjustment menu of each adjustment page;
  • Press keys “CH+” and“ CH-”to move cursor upwards or downwards within any adjustment page;
  • Move cursor to any adjustment item, press key “VOL-”or “VOL+” to adjust it;
  • Press key“ MENU” to return to initial menu from any page of adjustment menu;
  • Press key “EXIT” to exit factory menu at any time;” EXIT”
  • Set item “Aging Mode” as “On” to enter into factory-aging mode.
FACTORY RESET
Enter into factory menu, select item “Reset to default”, the machine will preset items of user menu automatically.
SOFTWARE UPDATE PROCEDURE
  • The model can be upgraded from port of USB or RS232. Upgraded from USB is recommended for only a U disk is needed and upgrading speed is faster. Upgraded from RS232 can be used under the circumstances of failure to be upgraded from USB. Besides a computer and a serial line are needed, upgrading speed from RS232 is slower.
USB UPGRADE
  • Copy upgrading file “zTVApp_rom_aes.ecc” to the root directory of a U disk. Be sure that there is only one file with name “.ecc” in the U disk:
  • Connect to AC power supply, power on the set and wait until the set works normal;
  • Insert the U disk to USB port and a figure will be displayed.
If there is not a figure displayed as Fig, after insert the U disk, please pull out the U disk and insert it again; if a figure as Fig.1 cannot be displayed in any case, power off/on the set again and check out upgrading files and the U disk.
  • Select item “YES” and press button “OK”, the set will be upgraded automatically for about a few minutes, then a figure as Fig  will be displayed after upgrading Successfully.
  • Power off the AC power supply, pull out the U disk, then power on the set again to complete the upgrading process.
RS 232
A computer and a serial line are needed. Online upgrading tool can be used with file“iDev.exe” of Zoran. Upgrading process will last for a little long time.
  • Connect the serial line correctly (transferred by a earphone line), then open the upgrading file “iDev.exe”
  • Press “Setup” button.
  • Setup items “Serial Port” and “Baud Rate” correctly, select “Image Path” as Fig. 4 to load upgrading file “zTVApp_rom_aes.ecc” select item “Update boot sector”, press button “OK” then return to display a figure as Fig.
  • Press button “down”
  • A figure will be displayed as Fig,  if serial port has been occupied.
  • Now first close the software, which is occupying serial port, then press button “down” again.
  • Power off/on the set again, then begin upgrading process as Fig.
  • It will take a few minutes to upgrade.
Power off the AC power supply, then power on the set again to complete the upgrading process.

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YAMAHA _ THOMSON - CS-100 – CS-105 - SCHEMATIC DIAGRAM [CIRCUIT DIAGRAM]

July 12, 2013, 5:24 am
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ICs Used: AN 7312 – LA 1823 – BU 1924 – BU 2616 – PT 2314 & LA 4282
MAIN BOARD

R/P HEAD PRE & MOTOR CONTROL
CLICK ON SCHEMATICS TO ZOOM IN
POWER
DISPLAY & CONTROL

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