Onkyo A-9050 Service Manual

A-9030/9050/M-5010/ADM-20.4
Operation Check - 2
2-1. Voltage protection
a. The unit receives the remote control signal, it goes into the test mode 1-02.
b. The speaker relay become OFF immediately after "D.C. 1.5V inputs" to CD SELECTOR to check L and R.
The same as above when "D.C. -1.5V" inputs at each place.
NOTE 1: Limit time to apply voltage is 0.5-1.0 seconds each channel.
When protection operation does not occur at once, try several times.
NOTE 2: Don't connect load nor short speaker terminals.
* When you check this protection, you must use the test mode 1-02.
2-2. Current protection
a. The unit receives the remote control signal, it goes into the test mode 1-02.
b. The relay shall be ON when 2 ohm load is connected to each channel under the conditions of
Peak-to-zero 20V output for L,R channels and no load by using the INTEGRA amplifier series
Designated circuit with 50Hz square wave.
c. The relay shall be OFF when 0.5 ohm load is connected to each channel under the conditions of
Peak-to-zero 20V output for L,R channels and no load by using the INTEGRA amplifier series
Designated circuit with 50Hz square wave.
* When you check this protection, you must use the test mode 1-02.

Onkyo A-9050 Specifications

General

Output level	175 mV
Damping factor	60
Amplifier class	A
Output impedance	2200 Ω
Audio output channels	2.0 channels
Peak power per channel	75 W
Signal-to-Noise Ratio (SNR)	110 dB
Total Harmonic Distortion (THD)	0.08 %
AC (power) in	Yes
Audio (L/R) in	5
Audio (L/R) out	1
Digital audio coaxial in	2
Speakers connectivity type	RCA
Purpose	Home
Product color	Silver
Volume control	Rotary
Connectivity technology	Wired
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.3 W
Power consumption (typical)	160 W
Package weight	10500 g

Weight and Dimensions

Depth	330.3 mm
Width	435 mm
Height	139 mm
Weight	820 g