Denon AVR-989 Service Manual

19
AVR-2809CI/AVR-989/AVR-2809/AVC-2809
12. POWER AMP UNIT ASSY
<attention of assemble>
b When repairing, be sure to provide spatial distance between R752 to R765 and C723 to C729.
R752 to R765 become hot when there is a problem.
As a measure to deal with the heat of R752 to R765, attach GLASS TUBE to C723 to C729 for products with serial num-
bers starting from the ones indicated below.
Do not attach GLASS TUBE to products with earlier serial numbers.
Be particularly careful when repairing products on which no GLASS TUBE are attached.
＜組立のご注意＞
b 修理の際は、R752 〜 R765 と C723 〜 C729 の間には、必ず空間距離を設けてください。
R752 〜 R765 は、異常時に高温になります。
R752 〜 R765 の高温対策として、以下のシリアル番号以降の生産品には、C723 〜 C729 に保護用の GLASSTUBE を
付けています。
それ以前の生産品には、GLASSTUBE を付けていません。
GLASSTUBE が付いていない生産品の修理時は特に注意してください。
Proceeding (手順) : TOP COVER SUB ASSY → DIGITAL UNIT ASSY
→ BACK PANEL ASSY → A.VIDEO UNIT ASSY
→ AUDIO UNIT ASSY → UCON CONNECT UNIT
→ AUDIO LIMIT UNIT → MAIN CPU UNIT ASSY
→ REG UNIT ASSY → PRE AMP UNIT ASSY
→ POWER AMP UNIT ASSY
Please refer to "EXPLODED VIEW" for the disassembly method of POWER AMP UNIT ASSY.
POWERAMPUNITASSY のはずしかたは "EXPLODEDVIEW" を参照してください。
C723
C724
C725
C726
C727
C728 C729
R752 R753 R754 R755 R756
R763
R758
R765
R759
R760 R761
R762
R764
GLASS TUBE R757
MODEL SERIAL No.
AVR2809CIBKEU
02041~
AVR2809CIBKEC
00501~
AVR989BKEU
01001~
s
s

Denon AVR-989 Specifications

General

Brand	Denon
Model	AVR-989
Category	Stereo Receiver
Language	English