Denon DRA-800H - Connection 1: TV equipped with an HDMI connector and compatible with the ARC (Audio Return Channel)

BLOCK DIAGRAM
ANALOG AUDIO DIAGRAM
FRONT B _ L
FRONT A _R
FRONT A _L
+
-
-
+
-
+
NJU72750V
SELECT IC
SPK O U T
PRE OUT
TUNER
ADINL
ADINR
TO DIG ITAL
AUD IO B L O CK
D AC _ FL
D AC _ FR
D AC _ SW
SW1
MUT E
P-AMP
D AC _ FL
D AC _ FR
D AC _ SW
MAIN_L
MAIN_R
H /P L
GND
H /P R
H /P OUT
SW2
32.768kHz
FM /A M
ATT.
LE GO_ ADC_ R
NJU72343V
VOLUME IC
LE GO_ ADC_ L
ATT.
ATT.
ATT.
InA/B1
InA/B2
InA/B3
InA/B4
7in3out Matrix-Switch
InA/B5
InA/B6
InA/B7
OUT A 1
OUT A 2
OUT A 3
OUT B 1
OUT B 2
OUT B 3
AUD IO IN
CBL/SAT
CD
PHONO
V+ :+ 7.5V
V-:-7 .5V
* LOGIC CO N T ROL HIGH L EVEL IN PUT VOLTAG E(M IN: + 2 .5 V / MAX : V + )
V+ :+ 7.5V
V-:-7 .5V
* LOGIC CO N T ROL HIGH L EVEL IN PUT VOLTAG E(M IN: + 2 .5 V / MAX : V + )
VCC:DA+ 5V
D AB
E3:BUFFER AMP
E2:GAIN AMP(+12.6 dB)
VCC:DAB+ 3.3V
FRONT B _ R
-
+
H /P-AMP
OPEN
ZONE2_LCH
MUT E
MUT E
ZO NE2_N ET _ LR
SPE AKER A REL A Y
SPE AKER B RELA Y
-7.0 dB
-8.5 dB
D NM IX _ LR
ZONE2_RCH
0
0
OP EN
OP EN
D A01
D A0 2
D A0 3
D A0 1
D A0 2
D A03
GND
D RA-800H ANALOG AUDIO BLOCK
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
32