Onkyo TX-SR876

TX-SR876/SA876
SERVICE MANUAL
Ref. No. 4094
082008
AV RECEIVER
MODEL
TX-SR876
MODEL
TX-SA876
TX-SR876 Black, Golden and Silver models
TX-SA876 Golden model
220-240V AC, 50Hz
220-240V AC, 50/60Hz
B MMP, S MMP, B MMB, S MMB
G MMT
RC-690M
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.
B MDC, S MDD, GMDT 120V AC, 60Hz
220-240V AC, 50/60HzG MMR
INPUT SELECTOR
LISTENING MODE
ON STANDBY
GNITUMYALPSID
RC- 690 M
G
U
I
D
E
E
X
I
T
PREV
CH
DIMMER
CDR/MD
SAT TAPE/AMP
SLEEP
MACRO
REMOTE MODE
SUBTITLE AUDIO
REPEAT
PLAY MODE
--
/
---
10 11 12
VIDEO OFFOPEN/CLOSE
TV
TV CH
TV VOL
PLAYLIST RANDOM
DVD
AUX
1
AUX
2
GAME/TV
CBL/SATVCR/DVR
D. TUN
CD TUNER TAPE
PHONO
VCRVCR DVDDVD HDDHDD
S. RESTORE
REC
ENTER
TEST TONE
AUDIO SEL
CH SEL
SURR
DIRECT THX PURE A
STEREO
LEVEL
+
LEVEL
-
L NIGHT
ALL ST
T
O
P
M
E
N
U
M
E
N
U
VOL
CH
DISC
ALBUM
TV
VCR
CABLE DOCK
DVD
RECEIVER
CD
+
-
123
ZONE 3
ZONE 2
INPUT
+
-
+10
0
CLEAR
123
456
789
S
E
T
U
P
R
E
T
U
R
N
Re-EQ
TX-SR876

Onkyo TX-SR876 Specifications

General

Frequency range	5 - 100000 Hz
Audio output channels	7.1 channels
Signal-to-Noise Ratio (SNR)	110 dB
Total Harmonic Distortion (THD)	0.05 %
AM band range	522 - 1611 kHz
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
Radio Data System (RDS)	Yes
Connectivity technology	Wired
Product color	Silver
Dimensions (WxDxH)	435 x 458.5 x 194 mm
Power consumption (typical)	870 W

Weight and Dimensions

Weight	23300 g

Summary

SERVICE MANUAL

AV RECEIVER

Identifies the product category.

SAFETY-RELATED COMPONENT WARNING!

Critical safety warning about specific components.

EXPLODED VIEWS-1

Exploded Views-1 Description

Detailed list of parts with visual representation.

BLOCK DIAGRAMS-1

AUDIO SECTION

Block diagram illustrating the audio signal flow.

SCHEMATIC DIAGRAMS-1 (SD-1)

AUDIO SECTION-1

Schematic diagram for the primary audio circuits.

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -15

Q3401, Q3501: D790 E001 BZDH300 (Audio DSP)

Block diagram for the D790E001BZDH300 Audio DSP.

OPERATION CHECK-1

SPEAKER PROTECT-1 (DC VOLTAGE DETECTION)

Procedure for checking speaker protection based on DC voltage detection.

FIRMWARE UPDATE -2

Main Microprocessor Update Procedure

Step-by-step guide for updating the main microprocessor firmware.

DEBUG MODE-5

HDMI DEBUG MODE(12)

Troubleshooting guide for HDMI video setup errors.

ADJUSTMENT PROCEDURE-1

IDLING CURRENT ADJUSTMENT

Procedure for adjusting idling current for power amplifier channels.

EXPLODED VIEW PARTS LIST

REF. NO. PART NAME DESCRIPTION

Comprehensive list of parts with reference numbers and descriptions.

ONKYO CORPORATION

ONKYO U.S.A. CORPORATION

Contact information for Onkyo U.S.A. Corporation.