21
At 85
°
C (185
°
F) the amplifier will automatically disengage the connected
speaker load from the left or right hand channel and the words “OVER
TEMP” will be displayed. To prevent the protection function from cycling
around the trigger point, a hysteresis band has been included. This feature
ensures that once initiated, the heat sink temperature must be reduced by
5
°
C (41
°
F), to 80
°
C (176
°
F) before the channel once again becomes
active.
For more information on over temperature protection, please refer to
Chapter 9 ”Interacting with Your R200i”.
Note: The user can connect any load from 1
Ω
to infinity. In the event that
the connected load and volume demand is excessive, the R200i will
protect itself.
DC Offset
Protection
DC servos are used to correct for potentially damaging DC offset from
source components. The correction range is ±15V, at the output of the
amplifier. If the DC offset is in excess of ±600mV, the amplifier will
disconnect the output and display the words “DC OFFSET”.
For more information, please refer to Chapter 15 ”Faultfinding Your
R200i” and consult the “Description of Amplifier Faults” section.
Internal
Fuse
Failure
Protection
There are four fuses mounted in series with the amplifier’s two internal
DC buses. In the event that any one of the fuses should fail, the amplifier
will automatically detect the fault, disconnect the output and display the
words “+ FUSE FAIL” or “– FUSE FAIL”
Note: If a positive fuse only fails, under certain circumstances, other fault
conditions may appear on the display. Please check with your
Perreaux dealer.
For more information, please refer to Chapter 15 ”Faultfinding Your
R200i” and consult the “Description of Amplifier Faults” section.
Note: Every fault condition described above is left or right channel
specific.
Multiple
Faults
For more information on multiple faults, please refer to Chapter 15
“Faultfinding Your R200i” and consult the “Description of Amplifier
Faults” section.
