Denon AVR-S740H Service Manual

DIAGNOSTIC PATH DIAGRAM
g.A01
AUDIO IN
CEN
FR
FL
+
-
-
+
-
+
+
-
-
+
SL
SR
NJU72750V
SELECT IC
SPK O UT
PRE OU T
TU N E R
AD _FL
AD _FR
TO D IG IT AL
AUDIO BL OCK
D A _FL
D A _FR
D A _CEN
D A _SW
D A _SL
D A _SR
CBL/SA T
MIC ( A UTO SETU P )
NE T W ORK
SW 1
MUTE
AUDY SSEY
MED IA PLAY E R
P-AMP
ZONE2
AVRX 1500H E 3 ON L Y
MUT E
D A _FL
D A _FR
D A _CEN
D A _SW
D A _SL
D A _SR
D A _SBL
D A _SBR
ANA _ F L
ANA _ F R
H / P L
GND
H / P R
H /P OU T
+
-
-
+
SBL
SBR
BD 3812F
VOL IC
SW 2
D A _SBL
D A _SBR
(FL -H /FL-B/B I-AMP -FL/ZONE-FL )
(FR -H /FR-B /B I-AMP -FR/ZONE-FR)
32.768kH z
FM /A M
InA /B1
InA /B2
InA /B3
In
A/B 4
7in 3out M atrix -S witch
ATT.
Z2_A D C_ R
NJU72343V
VOLUME IC
Z2_A D C_ L
ATT.
ATT.
ATT.
InA /B5
InA /B6
InA /B7
PH O NO
OU TA 1
OU TA 2
OU TA 3
OU TB 1
OU TB 2
OU TB 3
V+ :+ 7.5V
V-:-7 .5V
* LO G IC C O NT RO L H IGH LEVEL INPUT VOLT A G E(MIN : + 2.5 V / MAX : V + )
V+ :+ 7.5V
V-:-7 .5V
* LO G IC C O NT RO L H IGH LEVEL INPUT VOLT A GE(M IN: + 2 .5V / MAX : V +)
VCC:D A+ 5V
D A0 2
D A0 2
D A0 3
D A0 4
D A0 5
D A0 6
D A0 7
D A0 8
D A0 7
D A0 8
D A0 1
D A0 2
D A0 3
D A0 4
D A0 5
D A0 6
AVRS740H /X1500H ANALOG AUD IO BLOCK
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
129

Denon AVR-S740H Specifications

General

Brand	Denon
Model	AVR-S740H
Category	Stereo Receiver
Language	English