Service manual

48
RX-V665/HTR-6260
RX-V665/HTR-6260
DC/TH
DC: Power amplifier DC (DC voltage) output is detected.
Normal value: 23 to 70
(Reference voltage: 3.3 V=255)
TH: Temperature on the heat sink is detected.
Normal value: 0 to 124
(Reference voltage: 3.3 V=255)
*
If DC and TH are out of the normal value range, the protection function works to turn off the power.
IMP/PL
IMP: 8 or 6 ohms impedance setup detection
IMP 8: 8 ohms setting
IMP 6: 6 ohms setting
PL: PLDET (Power amplifier output voltage detection)
The power amplifier output voltage is detected and the power amplifier input voltage is controlled according to the
detected output voltage.
(Reference voltage: 3.3 V=255)
DC:046 TH:111
IMP:8 PL:255
U, C, A, F models (Reference voltage: 3.3 V=255)
R, L models (Reference voltage: 3.3 V=255)
During normal operation Value for starting limiter operation Value for canceling limiter operation
PLDET (8 ohms/6 ohms) 255 / 255 87 / 146 125 / 171
LIM (Limiter control) H L H
During normal operation Value for starting limiter operation Value for canceling limiter operation
PLDET (8 ohms/6 ohms) 255 / 255 100 / 100 131 / 131
LIM (Limiter control) H L H