Denon AVC-2308 User Manual

TOKYO, JAPAN
Denon Brand Company, D&M Holdings lnc.
●
For purposes of improvement, specifications and
design are subject to change without notice.
●
Please use this service manual with referring to the
operating instructions without fail.
●
Some illustrations using in this service manual are
slightly different from the actual set.
注 意
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために、さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
●
本機の仕様は性能改良のため、予告なく変更すること
があります。
●
補修用性能部品の保有期間は、製造打切後 8 年です。
●
修理の際は、必ず取扱説明書を参照の上、作業を行っ
てください。
●
本文中に使用しているイラストは、説明の都合上現物
と多少異なる場合があります。
X0358 V.03 DE/CDM 0708
SERVICE MANUAL
AV SURROUND RECEIVER
AV SURROUND AMPLIFIER
MODEL JP E3 E2 EK E2A E1C EUT
AVR-2308CI
3
AVR-888
3
AVR-2308
33
AVC-2308
3
Ver. 3
2
2
Please refer to the
MODIFICATION NOTICE.

Denon AVC-2308 Specifications

General

Type	AV Receiver
Channels	7.1
HDMI Inputs	3
HDMI Outputs	1
Frequency Response	10 Hz - 100 kHz
Input Sensitivity/Impedance	200 mV/47 kOhms
Signal-to-Noise Ratio	100 dB
Digital Outputs	1 x Optical
Power Output	100 watts per channel into 8 ohms (20 Hz - 20 kHz) at 0.08% THD
Surround Sound Formats	Dolby TrueHD, DTS-HD Master Audio
Audio Formats Supported	MP3, WMA, AAC
Total Harmonic Distortion	0.08%
Digital Inputs	3 x Optical, 2 x Coaxial
Dimensions (W x H x D)	434 x 171 x 379 mm

Summary

SAFETY PRECAUTIONS

General Safety Precautions

Includes leakage current check, electric shock, disassembly/assembly, part usage, and wiring arrangement guidelines.

Important Safety Parts

Details on identifying and using safety-critical parts marked with '!' in diagrams and parts lists.

DIMENSION

WIRE ARRANGEMENT

CAUTION IN SERVICING

Initializing AV SURROUND RECEIVER/AMPLIFIER

Procedure for initializing the unit after replacing specific components like µcom or Digital PWB.

JIG to Use for Servicing

Information on essential extension cable kits required for board repairs.

CHECK WITH TEST MODE

µcom/DSP Error Display Mode

Details on accessing and interpreting error information via the FL Display for µcom and DSP.

ADJUSTMENT

Audio Section

Step-by-step guide for adjusting the idling current for the audio section.

TROUBLE SHOOTING

1. POWER

Troubleshooting steps for power-related issues, including 'Power not turn on' and 'Fuse is blown'.

2. Analog Video

2.1. MONITOR OUT (CVBS) Output NG

Flowchart for diagnosing issues with MONITOR OUT (CVBS) video output.

2.2. VCR/DVR MONITOR OUT(CVBS) Output NG

2.3. MONITOR OUT (S) Output NG

2.4. VCR/DVR MONITOR OUT(S) Output NG

2.5. COMPONENT OUT 1,2 Output NG

2.6. HDMI OUT 1,2 Output NG

3. HDMI/DVI

3.1. No Picture or Sound is Output

Troubleshooting guide for HDMI/DVI output issues, covering cables, selectors, and DVD player settings.

BLOCK DIAGRAMS

AUDIO BLOCK DIAGRAM

Overview of the audio signal path and component connections.

VIDEO BLOCK DIAGRAM

Overview of the video signal path and component connections.

CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK

LEVEL DIAGRAMS

FRONT ch

Level diagram for the front audio channels.

CENTER ch

Level diagram for the center audio channel.

SUBWOOFER ch

Level diagram for the subwoofer audio channel.

SURROUND ch

Level diagram for the surround audio channels.

SURR.BACK ch

Level diagram for the surround back audio channels.

SEMICONDUCTORS

IC's

List of integrated circuits with abbreviations and descriptions.

M30879FLBFP Terminal Function

Detailed pin function description for the M30879FLBFP IC.

PARTS LIST OF P.W.B. UNIT (AVR-2308CI/AVR-888 E3 model)

SEMICONDUCTORS GROUP

List of semiconductor components used on the P.W.B.

RESISTORS GROUP

List of resistor components used on the P.W.B.

CAPACITORS GROUP

List of capacitor components used on the P.W.B.

EXPLODED VIEWS (1/2)

AVR-2308CI, AVR-2308 and AVC-2308 FRONT PANEL EXPLODED VIEW

Exploded view of the front panel assembly for specific models.

EXPLODED VIEWS (2/2)

AVR-888 FRONT PANEL EXPLODED VIEW

Exploded view of the front panel assembly for the AVR-888 model.

PARTS LIST OF EXPLODED VIEW

1U-3852 DIGITAL UNIT ASSY

Parts list for the 1U-3852 Digital Unit.

1U-3853 A.AUDIO/VIDEO UNIT ASSY

Parts list for the 1U-3853 A.AUDIO/VIDEO Unit.

1U-3855 FRONT UNIT ASSY

Parts list for the 1U-3855 Front Unit.

NOTE FOR SCHEMATIC DIAGRAM

WARNING, CAUTION, NOTICE

Important notes regarding critical parts, safety checks, and resistance/capacitance values.

SCHEMATIC DIAGRAMS (1/29)

1U-3852 DIGITAL UNIT (1/9)

Schematic diagram for the 1U-3852 Digital Unit, section 1/9.

SCHEMATIC DIAGRAMS (2/29)

1U-3852 DIGITAL UNIT (2/9)

Schematic diagram for the 1U-3852 Digital Unit, section 2/9.

SCHEMATIC DIAGRAMS (3/29)

1U-3852 DIGITAL UNIT (3/9)

Schematic diagram for the 1U-3852 Digital Unit, section 3/9.

SCHEMATIC DIAGRAMS (4/29)

1U-3852 DIGITAL UNIT (4/9)

Schematic diagram for the 1U-3852 Digital Unit, section 4/9.

SCHEMATIC DIAGRAMS (5/29)

1U-3852 DIGITAL UNIT (5/9)

Schematic diagram for the 1U-3852 Digital Unit, section 5/9.

SCHEMATIC DIAGRAMS (6/29)

1U-3852 DIGITAL UNIT (6/9)

Schematic diagram for the 1U-3852 Digital Unit, section 6/9.

SCHEMATIC DIAGRAMS (7/29)

1U-3852 DIGITAL UNIT (7/9)

Schematic diagram for the 1U-3852 Digital Unit, section 7/9.

SCHEMATIC DIAGRAMS (8/29)

1U-3852 DIGITAL UNIT (8/9)

Schematic diagram for the 1U-3852 Digital Unit, section 8/9.

SCHEMATIC DIAGRAMS (9/29)

1U-3852 DIGITAL UNIT (9/9)

Schematic diagram for the 1U-3852 Digital Unit, section 9/9.

SCHEMATIC DIAGRAMS (10/29)

1U-3853 A.AUDIO/VIDEO UNIT (1/5)

Schematic diagram for the 1U-3853 A.AUDIO/VIDEO Unit, section 1/5.

1U-3853-1 A.VIDEO UNIT (1/3)

Schematic diagram for the 1U-3853-1 A.VIDEO Unit, section 1/3.

SCHEMATIC DIAGRAMS (11/29)

1U-3853-1 A.AUDIO/VIDEO UNIT (2/5)

Schematic diagram for the 1U-3853-1 A.AUDIO/VIDEO Unit, section 2/5.

1U-3853-1 A.VIDEO UNIT (2/3)

Schematic diagram for the 1U-3853-1 A.VIDEO Unit, section 2/3.

SCHEMATIC DIAGRAMS (12/29)

1U-3853-1 A.AUDIO/VIDEO UNIT (3/5)

Schematic diagram for the 1U-3853-1 A.AUDIO/VIDEO Unit, section 3/5.

1U-3853-1 A.VIDEO UNIT (3/3)

Schematic diagram for the 1U-3853-1 A.VIDEO Unit, section 3/3.

SCHEMATIC DIAGRAMS (13/29)

1U-3858 A.AUDIO/VIDEO UNIT (4/5)

Schematic diagram for the 1U-3858 A.AUDIO/VIDEO Unit, section 4/5.

1U-3858-2 AUDIO UNIT (1/1)

Schematic diagram for the 1U-3858-2 Audio Unit, section 1/1.

SCHEMATIC DIAGRAMS (14/29)

1U-3853 A.AUDIO/VIDEO UNIT(5/5)

Schematic diagram for the 1U-3853 A.AUDIO/VIDEO Unit, section 5/5.

1U-3853-3 PHONO UNIT

Schematic diagram for the 1U-3853-3 Phono Unit.

SCHEMATIC DIAGRAMS (15/29)

1U-3855-1 FLD UNIT

Schematic diagram for the 1U-3855-1 FLD Unit.

1U-3855 FRONT UNIT (1/3)

Schematic diagram for the 1U-3855 Front Unit, section 1/3.

1U-3855-2 FUNCTION UNIT

Schematic diagram for the 1U-3855-2 Function Unit.

1U-3855-8 P.SW UNIT

Schematic diagram for the 1U-3855-8 P.SW Unit.

SCHEMATIC DIAGRAMS (16/29)

1U-3855-3 FRONT IN UNIT

Schematic diagram for the 1U-3855-3 Front In Unit.

1U-3855 FRONT UNIT(2/3)

Schematic diagram for the 1U-3855 Front Unit, section 2/3.

1U-3855-4 REMOTE/IPOD UNIT

Schematic diagram for the 1U-3855-4 Remote/IPOD Unit.

1U-3855-10 FFC LOCK UNIT

Schematic diagram for the 1U-3855-10 FFC Lock Unit.

SCHEMATIC DIAGRAMS (17/29)

1U-3855-5 DIGITAL I/O UNIT

Schematic diagram for the 1U-3855-5 Digital I/O Unit.

1U-3855 FRONT UNIT(3/3)

Schematic diagram for the 1U-3855 Front Unit, section 3/3.

1U-3855-6 V/D JOINT UNIT

Schematic diagram for the 1U-3855-6 V/D Joint Unit.

1U-3855-7 uCON CONNECT UNIT

Schematic diagram for the 1U-3855-7 uCON Connect Unit.

1U-3855-9 D-Terminal UNIT

Schematic diagram for the 1U-3855-9 D-Terminal Unit.

SCHEMATIC DIAGRAMS (18/29)

1U-3843-1 FLD UNIT

Schematic diagram for the 1U-3843-1 FLD Unit.

1U-3843 FRONT UNIT(1/3)

Schematic diagram for the 1U-3843 Front Unit, section 1/3.

1U-3843-2 FUNCTION UNIT

Schematic diagram for the 1U-3843-2 Function Unit.

1U-3843-13 P.SW UNIT

Schematic diagram for the 1U-3843-13 P.SW Unit.

SCHEMATIC DIAGRAMS (19/29)

1U-3843-3 H/P UNIT

Schematic diagram for the 1U-3843-3 H/P Unit.

1U-3843 FRONT UNIT(2/3)

Schematic diagram for the 1U-3843 Front Unit, section 2/3.

1U-3843-4 S IN UNIT

Schematic diagram for the 1U-3843-4 S IN Unit.

1U-3843-5 AUX IN UNIT

Schematic diagram for the 1U-3843-5 AUX IN Unit.

1U-3843-6 OPT IN UNIT

Schematic diagram for the 1U-3843-6 OPT IN Unit.

1U-3843-7 MIC UNIT

Schematic diagram for the 1U-3843-7 MIC Unit.

1U-3843-8 JUNCTION UNIT

Schematic diagram for the 1U-3843-8 Junction Unit.

1U-3843-9 REMOTE/IPOD UNIT

Schematic diagram for the 1U-3843-9 Remote/IPOD Unit.

1U-3843-14 FFC LOCK UNIT

Schematic diagram for the 1U-3843-14 FFC Lock Unit.

SCHEMATIC DIAGRAMS (20/29)

1U-3843-10 DIGITAL I/O UNIT

Schematic diagram for the 1U-3843-10 Digital I/O Unit.

1U-3843 FRONT UNIT(3/3)

Schematic diagram for the 1U-3843 Front Unit, section 3/3.

1U-3843-11 V/D JOINT UNIT

Schematic diagram for the 1U-3843-11 V/D Joint Unit.

1U-3843-12 uCON CONNECT UNIT

Schematic diagram for the 1U-3843-12 uCON Connect Unit.

SCHEMATIC DIAGRAMS (21/29)

1U-3841-1 REG. UNIT

Schematic diagram for the 1U-3841-1 REG. Unit.

1U-3841 POWER REG. UNIT(1/3)

Schematic diagram for the 1U-3841 Power Reg. Unit, section 1/3.

1U-3841-9 LIMIT CONNECT UNIT

Schematic diagram for the 1U-3841-9 Limit Connect Unit.

1U-3841-10 V. POWER JUNCTION UNIT

Schematic diagram for the 1U-3841-10 V. Power Junction Unit.

1U-3841-11 VPJ. F UNIT

Schematic diagram for the 1U-3841-11 VPJ. F Unit.

1U-3841-12 VPJ. R UNIT

Schematic diagram for the 1U-3841-12 VPJ. R Unit.

SCHEMATIC DIAGRAMS (22/29)

1U-3854-1 POWER AMP UNIT (1/2)

Schematic diagram for the 1U-3854-1 Power Amp Unit, section 1/2.

1U-3841-6 PRE AMP UNIT

Schematic diagram for the 1U-3841-6 Pre Amp Unit.

SCHEMATIC DIAGRAMS (23/29)

1U-3841-7 AUDIO CONNECT UNIT

Schematic diagram for the 1U-3841-7 Audio Connect Unit.

1U-3841 POWER REG. UNIT(3/3)

Schematic diagram for the 1U-3841 Power Reg. Unit, section 3/3.

1U-3841-8 AUDIO LIMIT UNIT

Schematic diagram for the 1U-3841-8 Audio Limit Unit.

SCHEMATIC DIAGRAMS (24/29)

1U-3854-1 POWER AMP UNIT (1/2)

Schematic diagram for the 1U-3854-1 Power Amp Unit, section 1/2.

1U-3854-11 HOLD UNIT

Schematic diagram for the 1U-3854-11 Hold Unit.

SCHEMATIC DIAGRAMS (25/29)

1U-3854-1 POWER AMP UNIT (2/2)

Schematic diagram for the 1U-3854-1 Power Amp Unit, section 2/2.

SCHEMATIC DIAGRAMS (26/29)

1U-3857 MAIN CPU UNIT (1/3)

Schematic diagram for the 1U-3857 Main CPU Unit, section 1/3.

1U-3857-1 MAIN CPU UNIT (1/2)

Schematic diagram for the 1U-3857-1 Main CPU Unit, section 1/2.

SCHEMATIC DIAGRAMS (27/29)

1U-3857 MAIN CPU UNIT (2/3)

Schematic diagram for the 1U-3857 Main CPU Unit, section 2/3.

1U-3857-1 MAIN CPU UNIT (2/2)

Schematic diagram for the 1U-3857-1 Main CPU Unit, section 2/2.

1U-3857-6 TUNER IN UNIT

Schematic diagram for the 1U-3857-6 Tuner In Unit.

SCHEMATIC DIAGRAMS (28/29)

1U-3857-2 POWER UNIT

Schematic diagram for the 1U-3857-2 Power Unit.

1U-3857 MAIN CPU UNIT(3/3)

Schematic diagram for the 1U-3857 Main CPU Unit, section 3/3.

1U-3857-3 PRIM/CPU SUPPLY UNIT

Schematic diagram for the 1U-3857-3 Prim/CPU Supply Unit.

1U-3857-4 uCON JUNCTION UNIT

Schematic diagram for the 1U-3857-4 uCON Junction Unit.

1U-3857-5 E2 OUTLET UNIT

Schematic diagram for the 1U-3857-5 E2 Outlet Unit.

SCHEMATIC DIAGRAMS (29/29)

1U-3875 DTERMINAL UNIT

Schematic diagram for the 1U-3875 D Terminal Unit.