Eschenbach Optik Prisma HD - Manual (Page 10)

Page 10
Prisma HD English Rev 1.00
Sound on/off
The sounds can be disabled by pressing Zoom Down while
powering on the unit. Repeat to enable the sounds again.
Factory defaults
Press Mode while powering-on the Prisma HD to restore
factory settings for sound, lighting, brightness settings and
video frame rate.
Troubleshooting
Changing TV Standard
Most HD televisions can display all the many different
standards of HD signals, however some cannot. If your
television does not display the image from the Prisma HD
you should try the following: power-off the Prisma, press
and hold the Overview button and power on the unit. This
will change the unit from 50 Hz mode to 60 Hz and vice
versa. You will hear a sequence of three beeps confirming
the frequency change.
Taking Care of your Prisma HD
Do not touch the lens. Dirt on the lens will appear as a
blurred or dim image or as fuzzy spots on the screen. If you
believe the lens is dirty, it can be cleaned with a soft, dry
cloth applying minimal pressure. As the lens is polished and
coated, do not use a wet or coarse cloth, avoid detergents
and abrasive substances or solvents to clean it.
WARNING: Never look directly at the LED light source for
any prolonged period of time.