Denon AVR-2808 Service Manual

45
AVR-2808
※ Unless specified, 1U-3839-1 A.VIDEO UNIT part.
S
Input
S
1U-3839-1 A.VIDEO UNIT
Check ± 5VA.
+5VA : CX078-3,4pin
-5VA : CX078-5pin
NG
To troubleshooting 1.1 Power not turn
on.
OK
Check input/output of analog SW.
Input Y : IC102-13pin
Input C : IC106-13pin
Output Y : IC102-3pin
Output C : IC106-3pin
NG
Check analog SW settings.
IC102-9,10,11pin : L(0V)
IC102-6pin : L(0V)
IC106-9,10,11pin : L(0V)
IC106-6pin : L(0V)
NG
Check IC301, IC304 and CX073
soldering, or DIGITAL UNIT flaw.
OK
OK
Check soldering of IC102 and IC106.
Check input/output of AMP.
Input Y : IC113-5pin
Input C : IC114-5pin
Output Y : IC113-7pin
Output C : IC114-7pin
NG
Check soldering of IC113,IC114 and
surrounding parts.
OK
Check output to 1U-3838 DIGITAL UNIT.
Output Y : CX123-3pin
Output C : CX123-1pin
NG
Check soldering of CX123.
OK
To troubleshooting 3.HDMI/DVI.
※ 特に記載がない場合は 1U-3839-1A.VIDEOUNITの部品です。
S
入力
S
1U-3839-1A.VIDEOUNIT
± 5VAの確認
+5VA:CX078-3,4pin
-5VA:CX078-5pin
NG
1.1 電源が入らないのﾄﾗﾌﾞﾙｼｭｰﾃｨﾝｸﾞへ
OK
ｱﾅﾛｸﾞ SW の入出力確認
入力 Y:IC102-13pin
入力 C:IC106-13pin
出力 Y:IC102-3pin
出力 C:IC106-3pin
NG
ｱﾅﾛｸﾞ SW の設定確認
IC102-9,10,11pin:Ｌ(0V)
IC102-6pin:Ｌ(0V)
IC106-9,10,11pin:Ｌ(0V)
IC106-6pin:Ｌ(0V)
NG
IC301,IC304,CX073 のﾊﾝﾀﾞ付け確認
もしくは DIGITALUNIT の不具合
OK
OK
IC102,IC106 のﾊﾝﾀﾞ付け確認
AMP の入出力確認
入力 Y:IC113-5pin
入力 C:IC114-5pin
出力 Y:IC113-7pin
出力 C:IC114-7pin
NG
IC113,IC114及 び 周 辺 部 品 の 
ﾊﾝﾀﾞ付け確認
OK
1U-3838DIGITALUNIT への出力確認
出力 Y:CX123-3pin
出力 C:CX123-1pin
NG
CX123 のﾊﾝﾀﾞ付け確認
OK
3.HDMI/DVI のﾄﾗﾌﾞﾙｼｭｰﾃｨﾝｸﾞへ

Denon AVR-2808 Specifications

General

Brand	Denon
Model	AVR-2808
Category	Receiver
Language	English