Sony D-NF431 - Manual (Page 36)

Symptom Cause and/or corrective action
The LCD display becomes hard to
see or slows down.
 You are using your CD player at high temperatures (above
40°C/104°F) or at low temperatures (below 0°C/32°F). At
room temperature, the display will return to its normal
operating condition.
Even though you have not selected
“BOOKMARK,” (Bookmark)
flashes.
 If you have selected a playback option other than
“BOOKMARK,” (Bookmark) flashes.
Play stopped abruptly.  The off timer has been set. Change the setting of “TIMER” to
“OFF” (  page 27).
 The dry battery is used up completely. Replace the dry battery
with a new LR6 (size AA) alkaline battery (  page 12).
The TIMER function is canceled.  The TIMER function for the CD is canceled if you start
listening to the radio.
 The TIMER function for the radio is canceled if you start
playing a CD.
Radio
Symptom Cause and/or corrective action
The radio is weak or has poor
quality.
 Replace the battery with a new LR6 (size AA) alkaline battery
(  page 12).
 Move the CD player away from electric appliances (TVs, PCs,
etc.)
 Keep the AC power adaptor away from the CD player.
Others
Symptom Cause and/or corrective action
When closing the lid of the CD
player, the CD starts to rotate.
 The player is reading the information on the CD, not
malfunctioning.
You cannot operate the CD player
properly using the remote. 1)
 The buttons on the player are kept pressed by mistake.
 The remote is not connected securely.
1) D-NF430 USA, Canadian, JED models and D-NF431 models.
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D-NF430/NF431.GB.2-663-956-11(1)