Onkyo TX-DS494 Service Manual

TX-DS494/HT-R490
Ref. No.3676
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
052001
SERVICE MANUAL
AV RECEIVER
TX-DS494/HT-R490
STANDBY/ON
OFF
ON
POWER
PHONES
MASTER VOLUME
BASS
TREBLE
AV RECEIVER TX
-
DS 494
FM
AM
PHONO
C
D
TAPE
VIDEO
1
DVD
ABSPEAKERS
DIMMER
SURROUND
DTS/
VIDEO 2
VCR
AUDIO
SELECTOR
LISTENING MODE
DSP
STEREO
DISPLAY
STANDBY
SP SEL TUNING PRESET MEMORY SW MODE
DIGITAL INPUT
FM
MODE
CLEAR
R
C
-
4
4
4
M
R
E
M
O
T
E
C
O
N
T
R
O
L
L
E
R
INPUT SELECTOR
SLEEP DIMMER DISPLAY
CD TAPE PHONO TUNER
D V D VIDEO 1 VIDEO 2
SUR MODE SW MODE AUDIO SEL
TUNER
PRESET
STANDBY/ ON
DISC MUTING
DVD CD TAPE
VOLUME
TOP MENU MENU
CH SEL
RETURN SETUP
TEST TONE LEVEL
ENTER
MODE
TV CABLE SATELLITE
VCR
STANDBY/ ON
CH
TV/VCR
CH TV VOL
TV VOL
BMDD
BMPP,SMPP,BMPA,GMPA
BMWT,BMWR,GMWT,GMWR
GMGT
120V AC, 60Hz
230-240V AC, 50Hz
120/220-230V AC, 50/60Hz
220-230V AC 50/60Hz
HT-R490
TX-DS494
120V AC,60Hz
Black,Silver and Golden model
Black model

Onkyo TX-DS494 Specifications

Amplifier Section

continuous average power output	55 watts per channel min. RMS at 8 ohms
continuous power output	75 watts × 5 at 6 ohms
maximum power output	100 watts × 5 at 6 ohms

Tuner Section

FM tuning range	87.5-108.0 MHz
AM tuning range (North American models)	530-1, 710 kHz
AM tuning range (European & Australian models)	522-1, 611 kHz

General

power supply	AC 120 V, 60 Hz
power consumption	260 W
dimensions	435 × 150 × 339 mm

Remote Control

transmitter	Infrared
signal range	Approx. 5 meters
power supply	Two “AA” batteries (1.5 V × 2)