fig.A02b
AUDIO IN
CEN
FR
FL
+
-
-
+
-
+
+
-
-
+
SL
SR
NJU72750V
SELECT IC
SPK OUT
PRE OUT
TUNER
AD_FL
AD_FR
TO DIGITAL
AUDIO BLOCK
DA_FL
DA_FR
DA_CEN
DA_SW
DA_SL
DA_SR
CBL/SAT
MIC(AUTO SETUP)
NETWORK
SW1
MUTE
AUDYSSEY
MEDIA PLAYER
P-AMP
ZONE2
AVRX1500H E3 ONLY
MUTE
DA_FL
DA_FR
DA_CEN
DA_SW
DA_SL
DA_SR
DA_SBL
DA_SBR
ANA_FL
ANA_FR
H/P L
GND
H/P R
H/P OUT
+
-
-
+
SBL
SBR
BD3812F
VOL IC
SW2
DA_SBL
DA_SBR
(FL-H/FL-B/BI-AMP-FL/ZONE-FL)
(FR-H/FR-B/BI-AMP-FR/ZONE-FR)
32.768kHz
FM/AM
InA/B1
InA/B2
InA/B3
InA/B4
7i
n3
ou
t
M
at
ri
x-
Sw
itc
h
ATT.
Z2_ADC_R
NJU72343V
VOLUME IC
Z2_ADC_L
ATT.
ATT.
ATT.
InA/B5
InA/B6
InA/B7
PHONO
OUTA1
OUTA2
OUTA3
OUTB1
OUTB2
OUTB3
V+:+7.5V
V-:-7.5V
* LOGIC CONTROL HIGH LEVEL INPUT VOLTAGE(MIN: +2.5V / MAX: V+)
V+:+7.5V
V-:-7.5V
* LOGIC CONTROL HIGH LEVEL INPUT VOLTAGE(MIN: +2.5V / MAX: V+)
VCC:DA+5V
DA02
DA02
DA03
DA04
DA05
DA06
DA07
DA08
DA07
DA08
DA01
DA02
DA03
DA04
DA05
DA06
AVRS740H/X1500H ANALOG AUDIO BLOCK
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
131
