Sony UWP-V1, Service Manual

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1-3
UWP Series
1-1-3. Precaution When Replacing EEPROM (IC611)
When the EEPROM (IC611) is replaced with the new EEPROM, the same data that have been stored in
the removed EEPROM must be written into the newly mounted EEPROM.
1-1-4. Error Messages
When an error occurs, any of the following error messages can be generated by the self-diagnostics
function that is built-in the UTX-B2 and can appear on the display section.
Message Error contents Remedial measure
Err01 An error occurs in the backup With “Err01” displayed, press and hold the “-“ button
memory data. for 20 seconds to read the backup data.
The data is successfully read when “RELOAD” is
displayed. If the data fails to be read, check the
EEPROM (IC661) and its peripheral circuits, and write
the frequency data to the EEPROM.
Err02 An error occurs in the PLL Check the PLL synthesizer circuit (IC301, CP321 on
synthesizer circuit. the RF-131 board and its peripheral circuits).
Err03 Power supply voltage has exceeded Use the equipment with the power supply of the
the range of allowable limits. specified voltage range.
INIT The message is displayed when Do not press the “SET” button and the “ _ “ button.
the power is turned on while the
“SET” button and the “
_ “ button are
pressed at the same time.
If the “SET” button and the “
_ “ button
are pressed at the same time, the
UTX-B2 enters the default setting mode.