Toshiba TDP-S21 owner manual Before calling service personnel

Before calling service personnel

If you think something is wrong, check the followings before contacting customer service. Please see “Trouble indications” p.41 as well.

If This Happens	Check
No power	• Is the power cord plugged in? Is it connected to the projector?
	• Is the lamp cover loose? p.39
Power goes out	• Is the ambient temperature high? p.41
during use	• Is the air intake or air exhaust blocked? p.41
No picture	• Is the projector turned on? p.24
	• Is the mute function on? p.28
	• Is the brightness setting minimized? p.30
	• Are the connections set up correctly? p.21
	• Are all the connected devices functioning properly?
No audio	• Is the projector turned on? p.24
	• Is the mute function on? p.28
	• Is the volume setting minimized? p.25
	• Are the connections set up correctly? p.21
	• Are all the connected devices functioning properly?
Picture not	• Is the input signal supported by the projector? p.45 , p.46
displayed	• Is there something generating an abnormal video signal, for
correctly	instance the video tape?
Picture blurred	• Is the lens dirty? p.40
Part of picture	• Is the lens focus adjusted optimally? p.25
out of focus	• Is the projection distance within the projector’s supported range?
	p.20
	• Is the projector’s screen placement angle tilted too far? p.20
	• Are the sharpness or sampling phase adjustments off? p.27 p.30
Image is dark	• Are the brightness or contrast adjustments off? p.30
	• Is the lamp nearing the end of its service life? p.33
Colors too light	• Are the color, tint, R-level, G-level, or B-level adjustments off? p.30
Bad shading	• Is the screen dirty?
	• Is the lamp nearing the end of its service life? p.33
Remote control	• Are the remote control’s batteries drained?
doesn’t work	• Are the batteries inserted into the remote control correctly? p.19
	• Is the remote control being used within the effective range? p.19
	• Are there any obstructions between the remote control and
	projector?
	• Are there any fluorescent or other bright lights shining at the
	projector’s infrared remote sensor?

If This Happens	Check
TDP-S21	• Is the document imaging camera’s lens dirty?
The images from the	• Is the document imaging camera out of focus? p.36
document camera	• Is the location of the object being focused too dark?
are blurry
TDP-S21	• Is there impact from the room’s fluorescent lighting?
The images from the	Turn off the fluorescent lights, or change the shutter speed settings.
document camera	p.30
are flickering

Others

42 43