Sharp SD-AT100H, Service Manual, Page: 33 / 132

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SD-AT100H
DESCRIPTION OF AND HOW TO AVOID ERROR AND ABNORMALITY INDI-
CATIONS
Error Cause Preventive measure
NO DISC • A disc is not loaded.
• The disc cannot be recognized due to scratches
or dirt.
• The disc is loaded upside down.
Press the Open/Close key to open the cover and load a disc.
Clean the disc.
Load the disc in a proper direction.
NO PLAY • Unplayable disc
• The disc cannot be played correctly due to
scratches or dirt.
• The disc does not satisfy the standards.
Load a playable disc.
Clean the disc.
READ err • Unplayable disc
• Data cannot be read since the disc is scratched
or dirty.
• The disc does not satisfy the standards.
Load a playable disc.
Clean the disc.
Er-CD01
• The pick position detection switch of CD/DVD
mechanism does not work (defective
mechanism).
Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired at the dealer you purchased
it from.
Er-CD30
• The DVD unit and microcomputer do not
communicate properly.
• The DVD unit is defective.
• The unit is used where external noise is picked
up.
• The power supply picks up noise.
• Move the unit away from the noise source if located near.
• Use another AC outlet.
• Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired at the dealer you purchased
it from.
DSP NG
DSP malfunction
• The unit is used where external noise is picked
up.
• The power supply picks up noise.
• Move the unit away from the noise source if located near.
• Use another AC outlet.
• Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired by the dealer you
purchased it from.
No Signal • Signals are not sent to the external digital input
socket (optical).
• Signals input to the external digital input socket
(optical) have unplayable formats.
Check the connection and signals at the external digital input
socket (optical).
TEMP • The temperature of the power supply is too
high.
Before use, set the unit to the stand-by mode and wait for a
while.
If this occurs frequency, have it repaired by the dealer you
purchased it from.
Er-AP02
Er-AP03 Amplifier is defective
(A/D reset monitor detects an error.) Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired by the dealer you purchased
it from.
Er-AP14 ICs of A/D and D/A converters cannot
communicate properly. • Move the unit away from the noise source if located near.
• Use another AC outlet.
• Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired by the dealer you
purchased it from.