BENQ 2450HM MONITOR HOW TO ENTER THE SERVICE MODE HOW TO UPDATE THE FIRMWARE, POWER BOARD - SMPS - SCHEMATIC AND GENERAL TROUBLESHOOTING

BenQ G2450HM, GL2450HM, GL2450HE MONITOR how to update the firmware, SMPS schematic, troubleshooting, Service mode

How to enter the service mode

Connect signal source and power cable to monitor and DC off it.

Press “menu” key and “power on” key synchronously as below figure. When the screen lights, release the two buttons and then press “menu” again to open below factory menu.

If a bad smell or an abnormal sound appears to come from the monitor, contact your nearest BenQ service center for assistance immediately.

Be careful do not touch the rear side directly because of the backlight high voltage.

F/W Upgrade SOP: Upgrade by 715GT089-B/ C

Materials list

Connection

Install the USB driver

When insert the USB cable to PC USB port, will pop up a Hardware Wizard to help you install the USB driver if you use this ISP board first time. You can install it successfully as the below instruction step by step.

Remark: The USB driver files path: D:\FTC100103(Mstar)\FTCUSB.INF

Install the ISP tool.:  Copy the three files in one folder. And then double click ISP tool.exe

Set the parameters in “Device” window. Tick “WP Pin pull to high during ISP”.

Connect to the monitor. Click “Connect”. If the tool communicate with monitor successfully, the tool will detect the flash type of monitor.

Load the F/W you want to upgrade.

Set the restore address.:  fill “0x03F000” and “4KB” as follow.

Set parameter in “Auto” window. If you have set “Restore address”, please tick “Restore Data”.

Processing of upgrade. After clicking “Run”, the tool start to program. It is forbided to power off monitor or switch off connection during programming.

Successful upgrade. When upgrade successful, there will be green Pass letter appearing.

Check the FW version after upgrade.（ Take below figure as an instance）

(1)Connect signal source and power cable to monitor and DC off it.

(2) Press “menu” key and “power on” key synchronously as below figure. When the screen lights, release the two buttons and then press “menu” again to open below factory menu.

If the version is right, please do factory reset in user menu as below, or re-upgrade F/W as the above steps.

The reset will turn off burn in mode.

Troubleshooting.Can’t Entry ISP Mode?  Click “Config” to check the port type is USB. If no selection of USB as below please disconnect the JIG and then link it again.

Check the cables and ISP JIG are connected fluently.

Click the “Dis Con” and click “Connect” again.

AC off the monitor for a while and retry it.

Change advanced ISP tool.

Change ISP JIG or cable.

Change PC.

Power Board Schematics: GL2450HM//GL2450HE 715G5000P01000003H and G2450HM 715G5000P01001003H

GL2450HM//GL2450HE 715G5000P01000003H SMPS schematic

G2450HM 715G5000P01001003H: SMPS schematic

Troubleshooting

The image is blurredR

Readthe instructions on the link "Adjusting the Screen Resolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions.

How do you use a VGA extension cable

Remove the extension cable for the test. Is the image now in focus? If not, optimize the image by working through the instructions in the "Adjusting the refresh rate" section on the link "Adjusting the Screen Resolution". It is normal for blurring to occur due to conduction losses in extension cables. You can minimize

these losses by using an extension cable with better conduction quality or with a built-in booster.

The blurring only occur at resolutions lower than the native (maximum) resolution.

Read the instructions on the link "Adjusting the Screen Resolution" on the CD. Select the native resolution.

Pixel errors can be seen

One of several pixels is permanently black, one or more pixels are permanently white, one or more pixels are permanently red, green, blue or another color.

Clean the LCD screen.

Cycle power on-off.

These pixels are permanently on or off and that is a natural defect occurs in LCD technology.

The image has a faulty coloration

It has a yellow, blue or pink appearance.

Select MENU > PICTURE > Color > Reset Color, and then choose “YES” in the “Caution” message box to reset the color settings to the factory defaults.

If the image is still not correct and the OSD also has faulty coloration, this means one of the three primary colors is missing in the signal input. Now check the signal cable connectors. If any pin is bent or broken off, contact your dealer to get necessary support.

No image can be seen

Is the prompt on the display illuminated in green?

If the LED is illuminated in green and there is a message “Out of Range” on the screen, this means you are using a display mode that this monitor does not support, please change the setting to one of the supported mode. Please read the “Preset display modes” section from the link "Adjusting the Screen Resolution".

Faint shadow from the static image displayed is visible on the screen

Activate the power management function to let your computer and monitor go into a low power "sleep" mode when not actively in use.

Use a screensaver to prevent the occurrence of image retention.

The prompt on the display illuminated in orange

If the LED is illuminated in orange, the power management mode is active. Press any button on the computer keyboard or move the mouse. If that does not help, check the signal cable connectors. If any pin is bent or broken off, please contact your dealer to get necessary support.

The prompt on the display not illuminated at all

Check the power supply mains socket, the external power supply and the mains switch.

The image is distorted, flashes or flickers

Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions.

Running the monitor at its native resolution, but the image is still distorted

Images from different input sources may appear distorted or stretched on the monitor running at its native resolution. To have the optimal display performance of each type of input sources, you can use the "Display Mode" function to set a proper aspect ratio for the input sources.

The image is displaced in one direction

Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions.

OSD controls are inaccessible

To unlock the OSD controls when the OSD is preset to be locked, press and hold the “MENU” key for 15 seconds to enter the “OSD Lock” option and make changes.

Alternatively, you may use < or >  keys to select “NO” in the “OSD Lock” submenu from the “OSD Settings” menu (under SYSTEM), and all OSD controls will be accessible.

BENQ W7000 - W7000+ - HOW TO REPLACE THE PROJECTOR LAMP – HOW TO RESET THE LAMP HOUR – HOW TO EXTEND LAMP LIFE

Benq W7000 - W7000+ - How to replace the projector lamp – How to reset the lamp hour – How to extend lamp life

Getting to know the lamp hour

when the projector is in operation, the duration (in hours) of lamp usage is automatically calculated by the built-in timer. The method of calculating the equivalent lamp hour is as follows:
Equivalent lamp hour = 1 (hours used in Economic mode) + 3/2 (hours used in Normal mode)
To obtain the lamp hour information:
1. Press MENU and then press < / > until the Advanced Setup menu is highlighted.
2. Press Down to highlight Lamp Settings and press ENTER. The Lamp
Settings page displays.
3. The lamp hour information is shown in the row of Equivalent Lamp Hour.
4. To leave the menu, press MENU.
Extending lamp life
The projection lamp is a consumable item. To keep the lamp life as long as possible, you can do the following settings via the OSD menu.
Setting Lamp Power as Economic
Using Economic mode reduces system noise and power consumption. If the Economic mode is selected, the light output will be reduced and result in darker projected pictures.
Setting the projector in Economic mode also extends the lamp life. To set Economic mode, go to the
Advanced Setup > Lamp Settings > Lamp Power menu and press < / > .
Setting Auto Off
This function allows the projector to turn off automatically if no input source is detected after a set period of time.
To set Auto Off, go to the System Setup > Auto Off menu and press < / > to select a time period. The time period can be set from 5 to 30 minutes in 5-minute increments. If the preset time lengths are not suitable for your presentation, select Disable. The projector will not automatically shut down in a certain time period.

Timing of replacing the lamp
When the Lamp indicator lights up red or a message appears suggesting it is time to replace the lamp.

The following Lamp warning displays will remind you to change the lamp.

# Install a new lamp for optimal performance. If the projector is normally run with Economic selected you may continue to operate the projector until the next hour lamp warning appears.
Press ENTER to dismiss the message.

# It is strongly recommended that you replace the lamp at this stage. The lamp is a consumable item. The lamp brightness diminishes with use. This is normal lamp behavior. You can replace the lamp whenever you notice that the brightness level has significantly diminished.
Press ENTER to dismiss the message

# The lamp MUST be replaced before the projector will operate normally.
Press ENTER to dismiss the message

Replacing the lamp
# To reduce the risk of electrical shock, always turn the projector off and disconnect the power cable before changing the lamp.
# To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before replacing the lamp.
# To reduce the risk of injuries to fingers and damage to internal components, use caution when removing lamp glass that has shattered into sharp pieces.
# To reduce the risk of injuries to fingers and/or compromising image quality by touching the lens, do not touch the empty lamp compartment when the lamp is removed.
# This lamp contains mercury. Consult your local hazardous waste regulations to dispose of this lamp in a proper manner.

1. Turn the power off and disconnect the projector from the power outlet. Turn off all connected equipment and disconnect all other cables.
2. Slightly lift the projector up. Loosen the screws on the lamp cover (located on the left side)

3. Remove the lamp cover.

4. Loosen the screws that hold the lamp to the projector. If the screws are not loosened completely, they could injure your fingers.

5. Lift the handle so that it is perpendicular to the lamp. Use the handle to slowly pull the lamp out of the projector.

Notes

# Pulling it too quickly may cause the lamp to break and scatter broken glass in the projector. To reduce the risk of injuries to fingers and damage to internal components, use caution when removing lamp glass that has shattered.
# Do not place the lamp in locations where water might splash on it, children can reach it, near or above heat sources, or near flammable materials.
# Do not insert your hand into the projector when the lamp is removed. If you touch the optical components inside, it could cause blurred images.
6. Insert the replacement lamp. Make sure it is pushed fully and firmly in place.
7. Tighten the screws securing the lamp box.
8. Ensure the handle is fully locked in place.

Notes

# Please be careful to not over-tighten the screws.
# Loose screws may cause a bad connection, which could result in malfunction.
9. Re-install the lamp cover.

10. Tighten the screws on the lamp cover.

11. Reapply power and turn the projector back on.

Resetting the lamp timer
Do not reset the lamp timer if the lamp has not been replaced as this could cause damage.
1. After the start-up logo, press MENU and then press < / > until the Advanced Setup menu is highlighted.
2. Press to highlight Lamp Settings and press ENTER. The Lamp Settings page displays.
3. Highlight Reset Lamp Timer and press ENTER. A warning message displays asking if you want to reset the lamp timer. Highlight Reset and press ENTER. The lamp time will be reset to "0".

BENQ PROJECTOR - BENQ MS506 - MS3081 - MS504A – HOW TO REPLACE THE PROJECTOR LAMP – HOW TO RESET LAMP HOUR TIMERS – LAMP INFORMATION

Benq projector - Benq MS506 - MS3081 - MS504A – How to replace the projector lamp – How to reset lamp hour timers – Lamp information

Lamp information
Getting to know the lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically calculated by the built-in timer.
Total (equivalent) lamp hour = 2.5 x (hours used in Normal mode) + 1.67 x (hours used in Economic mode) + 1.54 x (hours used in SmartEco mode) + 1.00 x (hours used in
LampSave mode).
To obtain the lamp hour information:
1. Press MENU/EXIT and then press LEFT/RIGH to highlight the SYSTEM SETUP: Advanced menu.
2. Press DOWN to highlight Lamp Settings and press MODE/ENTER. The Lamp Settings page appears.
3. Select Lamp Timer to display lamp usage information.
4. To leave the menu, press MENU/EXIT.
You can also get the lamp hour information on the INFORMATION menu.

The LAMP indicator light and TEMPerature warning light will light up if the lamp becomes too hot. Turn the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator still lights up after turning the power back on.

Replacing the lamp

1.Turn the power off and disconnect the projector from the power outlet. If the lamp is hot, avoid burns by waiting for approximately 45 minutes until the lamp has cooled.

2. Loosen the screw(s) that secures the lamp cover on the side of the projector until the lamp cover loosens.
3. Open the lamp cover.

4. Remove the lamp cover from the projector.

# Do not turn the power on with the lamp cover removed.
# Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries.

5. Disconnect the lamp connector from the projector as illustrated.
6. Loosen the screw that secures the lamp.
7. Lift the handle so that it stands up.

8. Use the handle to slowly pull the lamp out of the projector.

# Pulling it too quickly may cause the lamp to break and scatter broken glass in the projector.
# Do not place the lamp in locations where water might splash on it, children can reach it, or near flammable materials.
# Do not insert your hands into the projector after the lamp is removed. If you touch the optical components inside, it could cause color unevenness and distortion of the projected images.

9. As shown in the figure, lower the new lamp.

10. Tighten the screw that secures the lamp.

11. Ensure the handle is fully laid flat and locked in place.
12. Reconnect the lamp connector.
# Loose screw may cause a bad connection, which could result in malfunction.
# Do not over tighten the screw.

13. Replace the lamp cover on the projector.

14. Close the lamp cover.

15. Tighten the screw(s) that secures the lamp cover.
# Loose screw may cause a bad connection, which could result in malfunction.
# Do not over tighten the screw.

16. Connect the power and restart the projector. Do not turn the power on with the lamp cover removed.

Resetting the lamp timer

17. After the startup logo, open the On-Screen Display (OSD) menu. Go to the SYSTEM SETUP: Advanced > Lamp Settings menu. Press MODE/ENTER. The Lamp Settings page appears. Highlight Reset Lamp Timer. A warning message appears asking if you want to reset the lamp timer. Highlight Reset and press MODE/ENTER. The lamp time will be reset to “0”. Do not reset if the lamp is not new or replaced as this could cause damage.

POWER SUPPLY BOARD SCHEMATIC - 715G5246P02W21002S - FOR BENQ 42RL7500 LED LCD TV

Power Board Schematic - 715G5246P02W21002S - For BenQ 42RL7500 LED LCD TV

715G5246P02W21002S SMPS board

Schematic

BENQ - FP-767 - MONITOR - POWER SUPPLY [SMPS] - SCHEMATIC (CIRCUIT DIAGRAM)

BenQ - FP-767 - MONITOR - POWER SUPPLY [SMPS] - SCHEMATIC (Circuit Diagram)

POWER SUPPLY {SMPS} SCHEMATIC

CLICK ON THE SCHEMATIC TO ZOOM IN

HOW TO RE-TUNE BENQ FREVIEW TV OR BOX.

HOW TO RE-TUNE BenQ FREVIEW TV or BOX.

When does switch-over happens?

Border >  Switched

West Country >  Switched

Granada >  Switched

Wales >  Switched

West >  Switched

STV North >  Switched

Channel Islands > Switched

STV Central >  Switched

Central > 2011

Yorkshire > 2011

Anglia > 2011

London >  2012

Meridian > 2012

Tyne Tees > 2012

UTV > 2012

* To find out which transmitter group you are likely to receive your TV signal from, visit the postcode checker at digitaluk.co.uk or call  on 08456 50 50 50

The digital TV switch over.

Television services in the UK are digital TV region by TV region, by 2012. The digital TV switch over is happening so that Freeview services (digital TV through an aerial) can be extended to people who can’t currently get them.

Digital UK is the not-for-profit organization responsible for leading the TV switch over. They’re independent, which means that all the advice and information  give is unbiased.

When to re-tune?

* At each of the two stages of switch over

* If at any time you find you have lost any TV channels

Regular re-tuning will ensure your equipment is up to date and that it picks up new channels as they become available.

How to re-tune Freeview TV or box?

1. Switch on the TV.

2. Press MENU and 1990 on your remote control.

3. An Initial Setup wizard is displayed. Press OK to continue.

4. Select your language, and press OK.

5. Select your country, and press OK.

6. Select Home mode, and press OK.

7. Select Analogue and Digital as your scan mode, and press OK.

8. Select Antenna as your tuner mode, and press OK.

9. Select Scan and press OK to start scanning for channels.

After re-tuning, press OK. You may have to reset your favorites list.

Re-tuning will take a few minutes.  Any Freeview product, including Freeview HD, needs to be re-tuned.

BENQ EP5920 PROJECTOR - LAMP INFORMATION - REPLACEMENT - RESET

BENQ EP5920 PROJECTOR - LAMP INFORMATION - REPLACEMENT - RESET

TO KNOW THE LAMP HOUR

• Press Menu/Exit and then press [ < / > ] until the SYSTEM SETUP: Advanced menu is highlighted.
• Press [DN] to highlight Lamp Settings and press MODE/ENTER. The Lamp Settings page displays.
• You will see the Equivalent lamp hour information displaying on the menu.
• To leave the menu, press Menu/Exit.  You can also get the lamp hour information on the INFORMATION menu.

EXTENDING LAMP LIFE

  Using Economic mode reduces system noise and power consumption by 20%. If the Economic mode is selected, the light output will be reduced and result in darker projected pictures.

Setting the projector in Economic mode also extends the lamp operation life. 

To set Economic mode, go into the SYSTEM SETUP: Advanced > Lamp Settings > Lamp mode menu and press [ < / > ].

REPLACING LAMP

  Install a new lamp for optimal performance. If the projector is normally run with Economic selected you may continue to operate the projector until the next lamp warning appears.

  A new lamp should be fitted to avoid the inconvenience when the projector runs out of lamp time.

It is strongly recommended that you replace the lamp at this stage. The lamp is a consumable item. The lamp brightness diminishes with use. This is normal lamp behavior. You can replace the lamp whenever you notice that the brightness level has significantly diminished.

“XXXX” shown in the above messages are numbers that vary depending on different models,

REPLACING THE LAMP

• Turn the power off and disconnect the projector from the wall socket. If the lamp is hot, avoid burns by waiting for approximately 45 minutes until the lamp has cooled.
• Loosen the captive screw from the front.
• Remove the lamp compartment cover as shown.
• Loosen the three captive screws that secure the lamp.
• Do not turn the power on with the lamp cover removed.

• Lift the handle so that it stands up. Use the handle to slowly pull the lamp out of the projector.

*  Pulling it too quickly may cause the lamp to break and scatter broken glass in the projector.

*  Do not place the lamp in locations where water might splash on it, children can reach it, or near flammable materials.

*  Do not insert your hands into the projector after the lamp is removed. If you touch the optical components inside, it could cause color unevenness and distortion of the projected images.

• Insert the new lamp into the lamp compartment and make sure it fits in the projector. Ensure the connectors are aligned. If you experience resistance, lift the lamp and start again.

• Tighten the screws that secure the lamp.

*  Loose screw may cause a bad connection, which could result in malfunction.

*  Do not over tighten the screw.

• Ensure the handle is fully laid flat and locked in place.
• Replace the lamp compartment cover on the projector and tighten the captive screw.

RESETTING THE LAMP TIMER

• After the startup logo, open the On-Screen Display (OSD) menu. Go to the SYSTEM SETUP:  Advanced > Lamp Settings menu.
• Press MODE/ENTER. The Lamp Settings page displays.
• Press to highlight Reset  lamp timer and press MODE/ENTER.
• A warning message displays asking if you want to reset the lamp timer.
• Highlight Reset and press MODE/ENTER. The lamp time will be reset to '0'.

** Do not reset if the lamp is not new or replaced as this could cause damage.

BENQ W1070 - W1080ST - DIGITAL PROJECTOR - LAMP REPLACEMENT - LAMP TIMER RESET - INDICATIONS

BenQ W1070 - W1080ST - DIGITAL PROJECTOR - LAMP REPLACEMENT - LAMP TIMER RESET - INDICATIONS

LAMP REPLACEMENT
                                                   [Click on images to Enlarge]

• Turn the power off and disconnect the projector from the power outlet. If the lamp is hot, avoid burns by waiting for approximately 45minutes until the lamp has cooled.
• Loosen the screw that secures the lamp cover on the side of the projector until the lamp cover loosens.
• Remove the lamp cover from the projector.

*   Do not turn the power on with the lamp cover removed.
** Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries.

• Loosen the screw that secures the lamp.
• Lift the handle so that it stands up.

• Use the handle to slowly pull the lamp out of the projector.

*  Pulling it too quickly may cause the lamp to break and scatter broken glass in the projector.

*  Do not place the lamp in locations where water might splash on it, children can reach it, or near flammable materials.

*  Do not insert your hands into the projector after the lamp is removed. If you touch the optical components inside, it could cause color unevenness and distortion of the projected images.

• As shown in the figure, lower the new lamp.
• Tighten the screw that secures the lamp.
• Ensure the handle is fully laid flat and locked in place.
• Loose screw may cause a bad connection, which could result in malfunction.
• Do not over tighten the screw.

• Replace the lamp cover on the projector.
• Tighten the screw that secures the lamp cover.
• Loose screw may cause a bad connection, which could result in malfunction.
• Do not over tighten the screw.

RESETTING LAMP TIMER

• Connect the power and restart the projector.
• After the start-up logo, press MENU/EXIT and then press [ < / > ] until the System Setup :
• Advanced menu is highlighted.
• Press [DN] to highlight Lamp Settings and press MODE/ENTER. The Lamp Settings page displays.
• Highlight Reset Lamp Timer and press MODE/ENTER. A warning message displays asking if you want to reset the lamp timer.
• Highlight Reset and press MODE/ENTER. The lamp time will be reset to "0".

INDICATIONS

There are three indicators, which show the status of the projector. Check the following for information about the indicator lights. If there is anything wrong, turn the projector off and contact your dealer.

WHEN PROJECTOR IS IN ABNORMAL STATE