RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
37
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
IMP SW/POWER LIMIT (Impedance/power limiter
detection)
IMP: 8 or 4 ohm impedance switch setting
PL: Power limiter detection value
The voltage value of pin No. 95 of IC301 is displayed,
using 5V/256 as standard.
When the power is turned on, the impedance of the
speaker being connected is automatically detected,
using the input voltage value of pin No. 95 of IC301.
IMPSW/POWERLIMIT
THM/FAN OUT (temperature detection/fan drive level)
THM: 500% display of the voltage based on the
temperature detected value. Reference voltage :
5V (Normal value: U, C models ..... 30 to 173,
Others models ..... 30 to 163)
Fan: Current fan drive level on the left and the past fan
drive history on the right.
(Not applicable to these models.)
THM/FANOUT
PORT VthL VthH
No.10 2.50V 2.95V
The port output is controlled by using the input voltage
value of pin No. 95 of IC301.
When higher than VthH, the port output is changed
from L to H.
When lower than VthL, the port output is changed from
H to L.
Input voltage value 0 - 460mV 461mV - 5V
Impedance of speaker 4 ohms 8 ohms
Impedance PORT VthL VthH
8/6 ohms No.10 2.85V 3.30V
4 ohms No.11 1.88V 2.38V
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