Equipment Instructions—Caldwell 102, 204, 302, 304

1. Using the instructor's computer for audio/video presentation
   • Troubleshooting problems using the instructor's computer for A/V presentations [see all]:
   1. Computer
   2. Projector
   3. Remote Control
2. Using the VCR for presenting a taped program
   • Troubleshooting using the VCR for presenting a taped program [see all]:
   1. Projector
   2. VCR
   3. Remote Control
3. Using a Laptop for Audio/Video Presentations
   • Troubleshooting using a laptop for A/V presentations [see all]:
   1. Connecting Laptop to Projector
   2. Projector
   3. Projector and Sound
   4. Remote Control

Using the Instructor’s Computer for Audio/Video Presentations:

1. Unlock and open the computer cabinet.
2. Turn the computer on if it is off. You may leave the computer on when you are finished.
3. Lower the projection screen.
4. Set the audio/video input source to the instructor’s computer. Switch the Main Computer/Laptop switchbox to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position.
5. Turn the ceiling-mounted projector on with the gray Sharp projector remote. The Sharp remote should be inside the computer cabinet. Point the Sharp remote at the ceiling mounted projector and press the On button. It will take up to 30 seconds for the projector to warm-up to full intensity.
6. Set the projector’s input source to the computer. Point the Sharp remote at the projector and press the Data 1 button until you see “RGB 1” displayed in the upper right corner of the screen. Also, switch the Main Computer/Laptop switchbox to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position, if it is not already.
7. When you are finished with your presentation turn the projector off. Point the Sharp remote at the projector and press the Off button twice.
8. Raise the projection screen.
9. Put the Sharp remote back into the computer cabinet.
10. Close and lock the computer cabinet door.

While using the Instructor's Computer, you may encounter the following AV problems:

a. Computer:

Problem: The computer will not come on. Make sure that the power cable from the computer cabinet is plugged into a power outlet.
If the power cable is plugged into a power strip, make sure that the power strip is plugged into a power outlet and is turned on. If the problem persists report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

b. Projector:

Problem: The projector does not come on.
Make sure that the Sharp remote is turned on. The Sharp remote has a power switch on its right side. Move the switch into the On position and try to turn the projector on again.

Problem: The projector still does not come on.
The projector might have been turned off recently and is still in its shutdown cycle. The shutdown cycle lasts up to five minutes. Wait for a few minutes and try again.

Problem: The projector still does not come on.
The batteries in the Sharp remote may be dead. There should be a spare set of batteries in the computer cabinet with which you can replace the old batteries. If there are no spare batteries, report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector still does not come on.
Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: There is no sound, or the sound is too soft/loud.
One or more volume dials on the amplifier may be turned down/up. The A-506A amplifier is located on the bottom shelf inside the computer cabinet. It has several volume dials. Some of the dials have a labeled mark indicating the recommended volume level. Make sure that the dial labeled “Master Volume” is set at the recommended volume level.

Problem: There is still no sound.
Make sure that the amplifier is on. The A-506A amplifier is located on the bottom shelf inside the computer cabinet. Find the power button on its right side. Above the power button is a red indicator light. If the light is lit, then the amplifier is on. If the light is not lit, then press the power button to turn the amplifier on.

Problem: The amplifier did not come on so there is still no sound.
Make sure that the power cable from the computer cabinet is plugged into a power outlet.

Problem: There is still no sound.
Make sure that the Main Computer/Laptop switchbox is set to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position, if it is not already.

Problem: There is still no sound.
Make sure that the computer’s audio is not muted. When the computer’s audio is muted you will see the word “MUTE” on the screen with a symbol that looks like a speaker with a line through it, an icon on the taskbar (bottom of the screen) that looks like a speaker with a red circle and line over it, or both. In this case follow the instructions below.

1. With the mouse right-click on the taskbar icon that looks like a speaker with a red circle and line over it, and select “Open Volume Controls” from the pop-up menu.
2. A new window named Play Control will appear with several volume sliders and mute checkboxes. If the “Play Control” slider is all the way down then move it all the way up, but be ready to adjust the room’s volume on the touch screen control panel. If the checkbox named “Mute all” is checked, then uncheck it.
3. If any of the other sliders are all the way down or mute checkboxes are checked, then try adjusting the sliders or unchecking the checkboxes.
4. Close the Play Control window.

If the problem persists, report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector does not show anything.
Make sure that the projector is on. Point the Sharp remote at the projector and press the On button. If the two lights on the front of the projector are green, then the projector is on. If the projector will not come on, then report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector still does not show anything.
Make sure that the Main Computer/Laptop switchbox is set to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position, if it is not already.

Problem: The projector still does not show anything.
Make sure that the computer is on. If the problem persists, then report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector does not show the correct input source or shows only a blank blue image.
Make sure that the correct input source is selected. Point the Sharp remote at the projector and press the Data 1 button until you see “RGB 1” in the upper right corner of the screen. If the problem persists report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector shuts down unexpectedly and without warning.
The projector may have overheated. In this case it will automatically shut down until it cools off. It will take at least five minutes for the projector to cool sufficiently. The projector will automatically come on again once it has finished cooling. If the projector does not come back on after 10 minutes, then the problem is not overheating. The projector’s motherboard might have failed. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The image on the projection screen is dim or faint.
The bulb in the projector needs to be replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The image on the projection screen flashes or flickers repeatedly.
A component of the electronics needs to be fixed or replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The word “LAMP” flashes in a corner of the projection screen for five seconds and then stops.
The bulb in the projector has been in use for 700 or more hours. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector emits smoke or sparks.
The projector has failed and must be replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

c. Remote Control:

Problem: The remote isn’t working, or the projector doesn’t respond to the remote.
Make sure that the Sharp remote is turned on. The Sharp remote has a power switch on its right side. Move the switch into the On position and try again.

Problem: The remote still isn’t working, or the projector still doesn’t respond to the remote.
The batteries in the Sharp remote may be dead. There should be a spare set of batteries in the computer cabinet with which you can replace the old batteries. If there are no spare batteries, report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Using the VCR for presenting a taped program:

1. Preview the taped program if it was recorded on any VCR other than those in the TCB classrooms before you attempt to present it to an audience. All the VCRs in the TCB classrooms are the same kind so that they all have the same tracking settings. An outside VCR’s tracking settings may be different. The VCRs in the TCB classrooms will try to automatically adjust to the tape’s tracking setting, but sometimes the VCR may be unable to do this. In this case the taped program will appear jittery, shaky, or unstable. The TCB Helpdesk can preview the taped program for you, or you can do so by going to an unused classroom.
2. Unlock and open the computer cabinet.
3. Lower the projection screen. A switch on the wall near the door controls the projection screen. Flip the switch down to lower the screen, or flip the switch up to raise the screen.
4. Turn the ceiling-mounted projector on with the gray Sharp projector remote. The Sharp remote should be inside the computer cabinet. Point the Sharp remote at the ceiling mounted projector and press the On button. It will take up to 30 seconds for the projector to warm-up to full intensity.
5. Set the projector’s input source to the VCR. Point the Sharp remote at the projector and press the Video 1 button until you see “VIDEO 1” displayed in the upper right corner of the screen.
6. Insert your videocassette into the VCR. The VCR will not play the tape automatically. Do not put non-VHS tapes into the VCR even if you have an adapter.
7. The basic functions of the VCR are controlled with the buttons on the front panel of the VCR or with the black VCR remote. Press the Play button on the front panel of the VCR or point the VCR remote at the VCR and press the Play button on it to play the tape.
8. When you have finished with your presentation remove the tape from the VCR. Press the Eject button located on the front of the VCR to retrieve the tape.
9. Set the projector’s input source to the instructor’s computer. Point the Sharp remote at the projector and press the Data 1 button until you see “RGB1” in the upper right corner of the screen.
10. Turn the projector off. Point the Sharp remote at the projector and press the Off button twice.
11. Raise the projection screen.
12. Put the Sharp remote and the VCR remote back into the computer cabinet.
13. Close and lock the computer cabinet door.

While using the Instructor's Computer, you may encounter the following AV problems:

a. Computer:

Problem: The projector does not come on.
Make sure that the Sharp remote is turned on. The Sharp remote has a power switch on its right side. Move the switch into the On position and try to turn the projector on again.

Problem: The projector still does not come on.
The projector might have been turned off recently and is still in its shutdown cycle. The shutdown cycle lasts up to five minutes. Wait for a few minutes and try again.

Problem: The projector still does not come on.
The batteries in the Sharp remote may be dead. There should be a spare set of batteries in the computer cabinet with which you can replace the old batteries. If there are no spare batteries, report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector still does not come on.
Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: There is no sound, or the sound is too soft/loud.
One or more volume dials on the amplifier may be turned down/up. The A-506A amplifier is located on the bottom shelf inside the computer cabinet. It has several volume dials. Some of the dials have a labeled mark indicating the recommended volume level. Make sure that the dial labeled “Master Volume” is set at the recommended volume level.

Problem: There is still no sound.
Make sure that the amplifier is on. The A-506A amplifier is located on the bottom shelf inside the computer cabinet. Find the power button on its right side. Above the power button is a red indicator light. If the light is lit, then the amplifier is on. If the light is not lit, then press the power button to turn the amplifier on.

Problem: The amplifier did not come on so there is still no sound.
Make sure that the power cable from the computer cabinet is plugged into a power outlet.

Problem: There is still no sound.
Make sure that the Main Computer/Laptop switchbox is set to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position, if it is not already.

Problem: There is still no sound.
Make sure that the computer’s audio is not muted. When the computer’s audio is muted you will see the word “MUTE” on the screen with a symbol that looks like a speaker with a line through it, an icon on the taskbar (bottom of the screen) that looks like a speaker with a red circle and line over it, or both. In this case follow the instructions below.

1. With the mouse right-click on the taskbar icon that looks like a speaker with a red circle and line over it, and select “Open Volume Controls” from the pop-up menu.
2. A new window named Play Control will appear with several volume sliders and mute checkboxes. If the “Play Control” slider is all the way down then move it all the way up, but be ready to adjust the room’s volume on the touch screen control panel. If the checkbox named “Mute all” is checked, then uncheck it.
3. If any of the other sliders are all the way down or mute checkboxes are checked, then try adjusting the sliders or unchecking the checkboxes.
4. Close the Play Control window.

If the problem persists, report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector does not show anything.
Make sure that the projector is on. Point the Sharp remote at the projector and press the On button. If the two lights on the front of the projector are green, then the projector is on. If the projector will not come on, then report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector still does not show anything.
Make sure that the Main Computer/Laptop switchbox is set to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position, if it is not already.

Problem: The projector still does not show anything.
Make sure that the computer is on. If the problem persists, then report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector does not show the correct input source or shows only a blank blue image.
Make sure that the correct input source is selected. Point the Sharp remote at the projector and press the Data 1 button until you see “RGB 1” in the upper right corner of the screen. If the problem persists report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector shuts down unexpectedly and without warning.
The projector may have overheated. In this case it will automatically shut down until it cools off. It will take at least five minutes for the projector to cool sufficiently. The projector will automatically come on again once it has finished cooling. If the projector does not come back on after 10 minutes, then the problem is not overheating. The projector’s motherboard might have failed. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The image on the projection screen is dim or faint.
The bulb in the projector needs to be replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The image on the projection screen flashes or flickers repeatedly.
A component of the electronics needs to be fixed or replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The word “LAMP” flashes in a corner of the projection screen for five seconds and then stops.
The bulb in the projector has been in use for 700 or more hours. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector emits smoke or sparks.
The projector has failed and must be replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

b. VCR:

Problem: The tape is jammed in the VCR or the VCR breaks the tape.
Do not attempt to remove a jammed or broken tape from the VCR. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

c. Remote Control:

Problem: The remote isn’t working, or the projector doesn’t respond to the remote.
Make sure that the Sharp remote is turned on. The Sharp remote has a power switch on its right side. Move the switch into the On position and try again.

Problem: The remote still isn’t working, or the projector still doesn’t respond to the remote.
The batteries in the Sharp remote may be dead. There should be a spare set of batteries in the computer cabinet with which you can replace the old batteries. If there are no spare batteries, report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Using a Laptop for Audio/Video Presentations:

1. Lower the projection screen. A switch on the wall near the door controls the projection screen. Flip the switch down to lower the screen, or flip the switch up to raise the screen.
2. Turn the laptop on.
3. Turn the ceiling-mounted projector on with the gray Sharp projector remote. The Sharp remote should be inside the computer cabinet. Point the Sharp remote at the ceiling mounted projector and press the On button. It will take up to 30 seconds for the projector to warm-up to full intensity.
4. Set the audio/video input source to the laptop computer. Switch the Main Computer/Laptop switchbox to “Laptop”. The Main Computer/Laptop switchbox is located on the middle shelf inside the computer cabinet. Switch it to the “B” or “Laptop” position, if it is not already.
5. Set the projector’s input source to the instructor’s computer. Point the Sharp remote at the projector and press the Data 1 button until you see “DATA 1” in the upper right corner of the screen.
6. Connect the laptop audio and video cables to the laptop. These two cables should be coiled up on the middle shelf of the computer cabinet. The laptop video cable has a semi-rectangular shaped end with nine pins. It fits onto the alternate video port on the back of the laptop. The alternate video port is also semi-rectangular shaped and has nine pinholes. The laptop audio cable has one round metal pin that fits into the headphone port of the laptop. Connect these two cables to the laptop.
7. Toggle the laptop’s video display mode if necessary. If the laptop has booted up completely and you do not see anything on the projection screen, then you may need to change the laptop’s video display mode. The three display modes are listed below.


Laptop Screen Only – The projector receives no video input from the laptop so the projection screen is blank, but the laptop’s monitor looks normal.

Laptop Screen and Alternate Video – The projector and the laptop’s monitor receive the same input so that you see the same image on the projection screen as on the monitor’s screen.

Alternate Video Only – The projector receives the video input from the laptop, but the laptop’s monitor does not. The laptop’s monitor screen is blank while the projection screen shows the normal video signal from the laptop.

All laptops have a key combination that toggles between the display modes. Usually the key combination is [Fn]+[F-key] where [Fn] is the Function key, [F-key] is one of the keys labeled “F1” through “F12”, and + means that you press both keys simultaneously. The appropriate F-key should be labeled with either two symbols that resemble monitors or with the letters “CRT/LCD”. It can take a couple of seconds for the display mode to change so pause before attempting to change the display mode again. You may have to change the display mode two or three times before you find the one you want. Some laptops may only have two of the display modes listed above.



8. When you are finished with your presentation set the audio/video input source to the instructor’s computer. Switch the Main Computer/Laptop switchbox to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position.
9. Turn the projector off. Point the Sharp remote at the projector and press the Off button twice.
10. Disconnect the laptop audio and video cables from the laptop, coil them, and place them on the middle shelf of the computer cabinet.
11. Raise the projection screen.
12. Put the Sharp remote back into the computer cabinet.
13. Close and lock the computer cabinet door.

While using a Laptop, you may enounter the following AV problems:

a. Connencting Laptop to Projector:

Problem: The projector shows a blank blue image even though Laptop is the selected program source.
Make sure that the laptop video cable is connected as described above. Try changing the laptop’s video display mode again as described above. If the problem persists, report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

b. Projector:

Problem: The projector does not come on.
Make sure that the Sharp remote is turned on. The Sharp remote has a power switch on its right side. Move the switch into the On position and try to turn the projector on again.

Problem: The projector still does not come on.
The projector might have been turned off recently and is still in its shutdown cycle. The shutdown cycle lasts up to five minutes. Wait for a few minutes and try again.

Problem: The projector still does not come on.
The batteries in the Sharp remote may be dead. There should be a spare set of batteries in the computer cabinet with which you can replace the old batteries. If there are no spare batteries, report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector still does not come on.
Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector shows a blank blue image even though Laptop is the selected program source.
Make sure that the laptop video cable is connected as described above. Try changing the laptop’s video display mode again as described above. If the problem persists, report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector does not show the correct input source or shows only a blank blue image.
Make sure that the correct input source is selected. Point the Sharp remote at the projector and press the Data 1 button until you see “DATA 1” in the upper right corner of the screen. If the problem persists report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector shuts down unexpectedly and without warning.
The projector may have overheated. In this case it will automatically shut down until it cools off. It will take at least five minutes for the projector to cool sufficiently. The projector will automatically come on again once it has finished cooling. If the projector does not come back on after 10 minutes, then the problem is not overheating. The projector’s motherboard might have failed. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The image on the projection screen is dim or faint.
The bulb in the projector needs to be replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The image on the projection screen flashes or flickers repeatedly.
A component of the electronics needs to be fixed or replaced. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The word “LAMP” flashes in a corner of the projection screen for five seconds and then stops.
The bulb in the projector has been in use for 700 or more hours. Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector emits smoke or sparks. The projector has failed and must be replaced.
Report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

c. Projector and Sound:

Problem: The projector does not show anything and/or there is no sound.
In this room, the projector also has speakers for the audio. Make sure that the projector is on. Point the Sharp remote at the projector and press the On button. If the two lights on the front of the projector are green, then the projector is on. If the projector will not come on, then report this problem to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

Problem: The projector still does not show anything and/or there is still no sound.
Make sure that the Main Computer/Laptop switchbox is set to “Main Computer”. The Main Computer/Laptop switchbox is located on the bottom shelf inside the computer cabinet. Switch it to the “A” or “Main Computer” position, if it is not already.

Problem: The projector still does not show anything and/or there is still no sound.
Make sure that the audio/video cables from the lectern are plugged into their wall panel. There are five cables that come out of the lectern and go to a special wall panel with five receptacles. These cables carry the audio and video signals from the computer/laptop and VCR to the projector. If any of these are unplugged, then plug them back in.

Problem: There is still no sound. Make sure that the computer’s audio is not muted.
When the computer’s audio is muted you will see the word “MUTE” on the screen with a symbol that looks like a speaker with a line through it, an icon on the taskbar (bottom of the screen) that looks like a speaker with a red circle and line over it, or both. In this case follow the instructions below.

1. With the mouse right-click on the taskbar icon that looks like a speaker with a red circle and line over it, and select “Open Volume Controls” from the pop-up menu.
2. A new window named Play Control will appear with several volume sliders and mute checkboxes. If the “Play Control” slider is all the way down then move it all the way up, but be ready to adjust the room’s volume on the touch screen control panel. If the checkbox named “Mute all” is checked, then uncheck it.
3. If any of the other sliders are all the way down or mute checkboxes are checked, then try adjusting the sliders or unchecking the checkboxes.
4. Close the Play Control window.
   If the problem persists, report it to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.

d. Remote Control:

Problem: The remote isn’t working, or the projector doesn’t respond to the remote.
Make sure that the Sharp remote is turned on. The Sharp remote has a power switch on its right side. Move the switch into the On position and try again.

Problem: The remote still isn’t working, or the projector still doesn’t respond to the remote.
The batteries in the Sharp remote may be dead. There should be a spare set of batteries in the computer cabinet with which you can replace the old batteries. If there are no spare batteries, report this to the TCB Helpdesk located in Sanford 304 or by phone at 542-6799.