Denon AVR-1907 User manual

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SERVICE MANUAL

MODEL

AVR-1907/787

AV SURROUND RECEIVER

AVC-1630

AV SURROUND AMPLIFIER

For U.S.A., Canada, Europe,

Asia, Taiwan R.O.C., Korea

& Japan model

TOKYO ,JAPAN

X0288 V.02 DE/CDM 0701

Some illustrations using in this service manual are

slightly different from the actual set.

●

Please use this service manual with referring to the

operating instructions without fail.

●

For purposes of improvement, specifications and

design are subject to change without notice.

●

●

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。

●

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。

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。

注意

Denon Brand Company, D&M Holdings Inc.

Ver. 2

Please refer to the

MODIFICATION NOTICE.

9

AVR-1907 / AVR-787 / AVC-1630

BLOCK DIAGRAM

84

AVR-1906 / AVR-786 / AVC-1620

SIGNAL LINE

SCHEMATIC DIAGRAMS (1/14)

MAIN UNIT

(For ALL MODEL)

SCHEMATIC DIAGRAMS (1/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

85

AVR-1906 / AVR-786 / AVC-1620

SCHEMATIC DIAGRAMS (2/14)

FRONT UNIT ,PRE OUT UNIT,POWER S/W UNIT

FUNCTION S/W UNIT,H/P UNIT

OPTICAL INPUT UNIT,V.AUX UNIT

(For ALL MODEL)

SCHEMATIC DIAGRAMS (2/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

86

AVR-1906 / AVR-786 / AVC-1620

SIGNAL LINE

SCHEMATIC DIAGRAMS (3/14)

CPU UNIT

(For ALL MODEL)

SCHEMATIC DIAGRAMS (3/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

87

AVR-1906 / AVR-786 / AVC-1620

SIGNAL LINE

SCHEMATIC DIAGRAMS (4/14)

CNT UNIT

(For ALL MODEL)

SCHEMATIC DIAGRAMS (4/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

88

AVR-1906 / AVR-786 / AVC-1620

SIGNAL LINE

SCHEMATIC DIAGRAMS (5/14)

PRE-AMP UNIT

SB-AMP & XM POWER UNIT

(For ALL MODEL)

SCHEMATIC DIAGRAMS (5/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

89

AVR-1906 / AVR-786 / AVC-1620

SCHEMATIC DIAGRAMS (6/14)

8CH_EXT(XM) UNIT

(For E3 MODEL)

SCHEMATIC DIAGRAMS (6/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

90

AVR-1906 / AVR-786 / AVC-1620

SIGNAL LINE

SCHEMATIC DIAGRAMS (7/14)

INPUT/VOLUME UNIT

(For ALL MODEL)

SCHEMATIC DIAGRAMS (7/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630

91

AVR-1906 / AVR-786 / AVC-1620

SIGNAL LINE

SCHEMATIC DIAGRAMS (8/14)

DSP UNIT (1/2)

(For ALL MODEL)

SCHEMATIC DIAGRAMS (8/14)

1234567891011

A

B

C

D

E

F

G

H

AVR-1907 / AVR-787 / AVC-1630