Denon AVR-2801/981 Service Manual page 8

AVR-2801/981
Q Q
3 7 6 3 1 5 1 5 0
1 2
SUBWOOFER
A
B
EXT.-IN
(dBV) (dB)
30
40
20
30
T E
L 1 3 9 4 2 2 9 6 5 1 3
10
20
0
10
C
−10
200mV/EXT.IN
−14
0dB
−20
D
w w w
E
8
3
(FRONT CH)
FROM FROM
R ch L ch
+
−
DAC
D/A
Config2
Config1
x a o
y
. i
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4 5
(FRONT CH)
TO
FRONT L/R ADD. LPF
−
+
ATTN.
+ − −
−
D/A OUT AMP ADDER INV
Q Q
3 7 6
0dBfs
−10dBfs
3dB
−20dBfs
TO FRONT CH
1.5dB
2.5dB
−30dBfs
11dB
1.5dB
11dB
−40dBfs
D/A OUT(DOLBYDIGITAL: DIALNORM −27dB)
u 1 6 3
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2 4
8 9 9
6
PRE AMP
+
3 1 5 1 5 0 8 9
2.15V (6.65dBV)
1.2V (1.58dBV)
20.5dB
20.5dB
m
c o
.
2
8 9 9
7 8
PRE-OUT
2 4 9 8 2 9 9
PRE-OUT