Service manual

36
RX-V665/HTR-6260
RX-V665/HTR-6260
THM PRT:xxx
Cause: The temperature on the heat sink is excessive.
Supplementary information: The protection function worked due to the temperature limit being exceeded.
Causes could be poor ventilation or a defect related to the thermal sensor.
If the power is turned on with the abnormality unsolved, the protection function works in about 1 second to turn off the
power.
* For detection of each protection function, refer to main menu described later.
● History of protection function
When the protection function has worked, its history is stored in memory with a backup.
Even if no abnormality is noted while servicing the unit, an abnormality which has occurred previously can be defined
as long as the backup data has been stored.
The history of the protection function is cleared when self-diagnostic function is cancelled by selecting PRESET
RESERVED (Memory initialized) of main menu No. 24 or when the backup data is erased.
When there is a history of protection function due to excessive
heat sink temperature
AD value when the protection function is working