Denon AVR-S740H - SUBWOOFER ch

SUBWOOFER ch
2CH IN 0dB
(200m V)
-10dB
-20dB
-40dB
-30dB
+10dB
+20dB
DSP
DAC
PRE O U T
NJU72340A
SUBW OOF ER
SUBW OOFER CHANNEL
PLD
PCM 1690
CS49844A
-50dB
0dB (200m Vrm s)
-10dB
-20dB
-40dB
-30dB
+10dB
+20dB
-50dB
+30dB
-10dB F S
-20dB F S
-30dB F S
-40dBFS
PRE O U T
M UTE
+11.5dB
+14.5dB
300Vrm s
G A IN
ADJ.
+11.5dB
-50dBFS
PRE O U T
150Vrm s
5M 80ZT
AVRS740H/X1500H LEVEL DIAG RAM
-34dB FS( D IG .IN:P C M )
-37dB F S ( A /D IN)
-40dBFS
DAC
AK4458
1. 98V r m s= 0dBF S
FULL S C A L E LEVEL
DO L B Y LIM IT L EVEL= 1 .41Vrm s (ALL ch - 3dB FS)
VO L U M E IC : N J U 72343 N O N C L IP M AX S IG NAL L E V E L 4.2Vrm s
L.P.F G A IN = + 6.5dB
(D IG .IN:DD)
PCM IN P U T :-20dBFS L+ R
ANA IN P U T : 200m Vrm s L + R 30Hz
DD IN P U T : - 30dBFS LFE 30H z
- D IG ITAL IN
G A IN s etting of M AST E R V O L 00dB
- A N A LOG IN
-2 . 0dB
-2 . 0dB
=+11.5dB
=+14.5dB
(1 ) (2 )
+3.0dB
-0 . 5dB
-0 . 5dB
(3 ) (4 )
(1 ) :Basic O FFSET of VO L = 0dB (Indication va lude)
(4 ) :Correction o f S ubw oofe r
(3 ) :Voltage due to hardw are of analog input
(2 ) :Fine-tuning by softw are D ig it al input
+14dB
+14dB
(5 )
(5 ) :O FFSET of A/D input
-2.5dB
LINE IN
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
35