Denon AVR-X1400H - Subw O O Fer Channel

SUBWOOFER ch
2CH IN 0dB
(200m V)
-10dB
-20dB
-40dB
-30dB
+10dB
+20dB
DSP
DAC
PRE O UT
NJU72340A
SUB WOOFE R
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
-40dB F S
PRE O UT
M UTE
+11.5dB
+14.5dB
300Vrm s
G A IN
ADJ.
+11.5dB
-50dB F S
PRE O UT
150Vrm s
5M 80Z T
AVRS730H/X1400H LEVEL DIAG RAM
-34dB F S(DIG .IN :PCM )
-37dB F S(A/D IN)
-40dB F S
DAC
AK4458
1.98V r m s=0dBFS
FULL SCALE LEVEL
DO L BY L IM IT L EVEL = 1 .41V rm s ( A LL c h -3dBF S )
VO L U ME IC : NJU 72343 N O N CLIP M AX SIG NA L LEVEL 4.2Vrm s
L.P.F G A IN = + 6.5dB
(D IG.IN:DD)
PCM INP U T : -20dB
FS L+R
ANA INPUT:200m Vr m s L + R 30H z
DD INPUT:-30dBFS LFE 30Hz
- D IG ITAL IN
G A IN setting of M ASTER VO 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 ) : B asic O FFSET of V OL= 0dB ( Indic a t ion v a lude)
(4 ) : C o rre c t ion o f S ubw oofe r
(3 ) : V o lt age due to hardw are of analog input
(2 ) : F ine- t uning by softw ar e D ig it a l input
+14dB
+14dB
(5 )
(5 ) : O FFSET of A / D input
-2.5dB
LINE IN
35
Caution in
servicing
Electrical Mechanical Repair Information Updating