Onkyo TX-SR504 - User Manual

TX-SR504/504E/8450
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
TX-SR504 Black, Silver and Golden models
MODEL TX-SR504
MODEL TX-SR504E
MODEL TX-SR8450
120V AC, 60Hz
120/220-240V AC, 50/60Hz
220-230V AC, 50/60Hz
B MDD, B MDC, S MDC
B MWT, S MWT, G MWT
G MGR, G MGQ, G MGK
Ref. No. 3927
042006
220-230V AC, 50/60Hz
TX-SR504E Black and Silver models
TX-SR8450 Golden models
B MPP, S MPP 230-240V AC, 50Hz
G MGR
RC-647M
MASTER VOLUME
VIDEO
STANDBY
TONE
DISPLAYSTEREO DIMMER MEMORY
DIGITAL
INPUT
TUNING
MODEAB
SPEAKERS
TUNERTAP E
VIDEO
3VIDEO 2VIDEO 1
VCR
DVDMULTI CH C
D
SETUPRETURN
CLEAR
LISTENING MODE
AUDIOLR
VIDEO 3 INPUT
STANDBY/ON
PHONES
TUNING PRESET
ENTER
MUTING
PREVIOUS
MENU
GUIDE
TOP MEN U
SP A / B
SETUPRETURN
PLAYLIST/CAT PLAYLIST/CAT
RANDOM SUBTITLE
PLAY MODE
AUDIO REPEAT
RC
-
647M
--
/
---
TAPE
M
D/CDR
HDD
CABLE
ON/STANDBY
DIMMER
ENT D TUN
SLEEP
10 11 12
INPUT SELECTOR
HDDDVDVCR
REMOTE MODE
V 1 V 2 V 3
C DTAPE TUNE R
DVD
MULTI CH
LISTENING MODE
TV
DISPLAY
TEST TONE CH SEL
SURROUND STEREO
CINE FLTR
LEVEL
+
LEVEL
-
L NIGHT
VOL
VOL
SAT
VCR
TV
DVD
RECEIVER
C D
INPUT
+
10
0
CLR
123
456
789
ENTER
CH
DISC
ALBUM
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.

Summary

Safety-Related Component Warning

Operation Checks

Speaker Protect-1 (DC Voltage Detection)

Procedure for checking speaker protection using DC voltage detection.

Speaker Protect-2 (Current Detection)

Operation Check-3: Control of Power Supply

Block Diagrams-1: Audio Section

Block Diagrams-2: Video Section

Schematic Diagrams-1: Audio Input Section

Schematic Diagrams-2: Power Amplifier Section

Schematic Diagrams-3: DSP & Microprocessor Section

Schematic Diagrams-4: Video Section

Schematic Diagrams-5: Speaker Terminal Section

Schematic Diagrams-6: XM Digital Transceiver Section

Schematic Diagrams-8: Power Supply Section

Printed Circuit Board Views-1: Amplifier PC Board

Printed Circuit Board Views-2: Amplifier PC Board (Soldering Side)

Printed Circuit Board Views-8: DSP & Microprocessor PC Board

Printed Circuit Board Views-9: DSP & Microprocessor PC Board (Side-B)

IC Block Diagrams and Terminal Descriptions-1: Q201 DSP Block Diagram

IC Block Diagrams and Terminal Descriptions-2: Q201 System Diagram

IC Block Diagrams and Terminal Descriptions-3: Q201 Pin Configuration

IC Block Diagrams and Terminal Descriptions-4: Q201 EMIF Terminal Description

IC Block Diagrams and Terminal Descriptions-5: Q201 EMIF Data Bus

IC Block Diagrams and Terminal Descriptions-6: Q201 Serial Port Pins

IC Block Diagrams and Terminal Descriptions-7: Q201 Clocks and Reset Pins

IC Block Diagrams and Terminal Descriptions-8: Q281 DRAM Block Diagram

IC Block Diagrams and Terminal Descriptions-9: Q281 DRAM Terminal Description

IC Block Diagrams and Terminal Descriptions-10: Q282 Flash Memory Block Diagram

IC Block Diagrams and Terminal Descriptions-11: Q282 Flash Memory Pin Configuration

IC Block Diagrams and Terminal Descriptions-12: Q301 Codec Block Diagram

IC Block Diagrams and Terminal Descriptions-14: Q301 Codec Pin Configuration

Terminal Description (2;3): Q301 Codec Details

Terminal Description (3;3): Q301 Codec Details

IC Block Diagrams and Terminal Descriptions-16: Q3001 Video SW Block Diagram

Terminal Description (1;2): Q3001 Video SW Details

Terminal Description (2;2): Q3001 Video SW Details

Pin Configuration: Q3001 Video SW

IC Block Diagrams and Terminal Descriptions-20: Q5501 Volume;Selector IC Block Diagram

IC Block Diagrams and Terminal Descriptions-21: Q5501 Volume;Selector IC Block Diagram & Pin Configuration

Terminal Description: Q5501 Volume;Selector IC

IC Block Diagrams and Terminal Descriptions-23: Q7003 FL Tube Driver Block Diagram

IC Block Diagrams and Terminal Descriptions-24: Q2001 XM Digital Transceiver Block Diagram

Terminal Description (1;2): Q2001 XM Digital Transceiver

Terminal Description (2;2): Q2001 XM Digital Transceiver

IC Block Diagrams and Terminal Descriptions-27: Q2002 DAC Block Diagram

Microprocessor Terminal Descriptions-1: Q701 M30622 MWP-B06

Microprocessor Terminal Descriptions-2: Q701 M30622 MWP-B06

Adjustment Procedure-1: Idling Current Adjustment

Idling Current Adjustment Steps

Detailed steps for adjusting idling current using trimming resistors.

Adjustment Procedure-2: Idling Current Adjustment Diagram

Onkyo TX-SR504 Specifications

General

Channels	7.1
Total Harmonic Distortion	0.08%
Signal-To-Noise Ratio	100 dB
Input Sensitivity	200 mV
Tuner Bands	AM/FM
HDMI Switching	Yes
Frequency Response	10 Hz - 100 kHz
Inputs	Component video x 2, composite video x 4, digital audio (coaxial) x 1, digital audio (optical) x 1, HDMI x 2
Outputs	Component video x 1, composite video x 2, HDMI x 1
Audio Formats Supported	Dolby Digital, DTS
Dimensions	17.1 x 6.8 x 15.4 inches (435 x 173 x 391 mm)
Response Bandwidth	10Hz-100kHz
Input Impedance	47 kOhms
Tuning Range	FM: 87.5-108 MHz, AM: 530-1710 kHz
Preset Station Qty	40
Connector Type	HDMI, RCA
Speaker Impedance	6-16 ohms
Power Output	75 watts per channel (8 ohms, 20Hz-20kHz, 0.08% THD)