![background image](http://html1.mh-extra.com/html/onkyo/pdr-155/pdr-155_service-manual_1636831068.webp)
No. Terminal
Description
1
IN31
1ch input terminal 3
2
IN32
2ch input terminal 3
3
IN41
1ch input terminal 4
4
IN42
2ch input terminal 4
5
IN51
1ch input terminal 5
6
IN52
2ch input terminal 5
7
IN61
1ch input terminal 6
8
IN62
2ch input terminal 6
9
IN71
1ch input terminal 7
10
IN72
2ch input terminal 7
11
IN81
1ch input terminal 8
12
IN82
2ch input terminal 8
13
INDVDSR
DVD surround Rch input terminal
14
INDVDSL
DVD surround Lch input terminal
15
INDVDC
DVD center input terminal
16
INDVDSW
DVD sub woofer input terminal
17
OUT2(+)
2ch (+) A/D output terminal
18
OUT2(-)
2ch (-) A/D output terminal
19
OUT1(+)
1ch (+) A/D output terminal
20
OUT1(-)
1ch (-) A/D output terminal
21
IN1DSP
1ch DSP input terminal
22
IN1MIX
1ch DSP MIX input terminal
23
IN2DSP
2ch DSP input terminal
24
IN2MIX
2ch DSP MIX input terminal
25
INDSPSR
DSP surround Rch input terminal
No. Terminal
Description
26
INDSPSL
DSP surround Lch input terminal
27
INDSPC
DSP center input terminal
28
INDSPSW
DSP sub woofer input terminal
29
AGND1
Analog ground terminal
30
GOUTSW
Sub woofer input gain output terminal
31
VINSW
Sub woofer volume input terminal
32
AGND2
Analog ground terminal
33
GOUTC
Center input gain out put terminal
34
VINC
Center volume input terminal
35
OUTSW
Sub woofer output terminal
36
OUTC
Center output terminal
37
OUTSL
Surround Lch output terminal
38
OUTSR
Surround Rch output terminal
39
VINSL
Surround Lch volume input terminal
40
GOUTSL
Surround Lch input gain output terminal
41
AGND3
Analog ground terminal
42
VINSR
Surround Rch volume input terminal
43
GOUTSR
Surround Rch input gain output terminal
44
AGND4
Analog ground terminal
45
DGND
Ground terminal for comparator
46
DA
Serial data and latch input terminal
47
CL
Serial clock input terminal
48
MUTE
Mute terminal
49
AGND5
Analog ground terminal
50
VEE
(-) Power supply terminal
51
AGND6
Analog ground terminal
52
VCC
(+) Power supply terminal
53
AGND7
Analog ground terminal
54
AGND8
Analog ground terminal
55
OUT1
1ch output terminal
56
BBNF1
1ch bass boost filter terminal
57
OUT2
2ch output terminal
58
BBNF2
2ch bass boost filter terminal
59
BNF22
2ch bass filter terminal 2
60
BNF12
2ch bass filter terminal 1
61
BNF21
1ch bass filter terminal 2
62
BNF11
1ch bass filter terminal 1
63
TNF1
1ch treble filter terminal 1
64
TNF2
2ch treble filter terminal 1
65
VIN1
1ch(Lch) volume input terminal
66
GOUT1
1ch(Lch) input gain output terminal
67
AGND9
Analog ground terminal
68
VIN2
2ch(Rch) volume input terminal
69
GOUT2
2ch(Rch) input gain output terminal
70
AGND10
Analog ground terminal
71
ROUT11
1ch recording input/output terminal 1
72
ROUT12
2ch recording input/output terminal 1
73
ROUT21
1ch recording output terminal 2
74
ROUT22
2ch recording output terminal 2
75
ROUT31
1ch recording output terminal 3
76
ROUT32
2ch recording output terminal 3
77
IN11
1ch input terminal 1
78
IN12
2ch input terminal 1
79
IN21
1ch input terminal 2
80
IN22
2ch input terminal 2
Q3001: BD3811K1 (6ch Volume with 8ch input selector)
LOGIC
D A
C L
M U T
VEE
VCC
BAAS
BOOST
BASS
TREBLE
47k
47k
47k
47k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
4 7 k
47k
47k
47k
47k
4 7 k
29
70
32
4 1
4 4
4 9
5 1
5 3
5 4
67
5 6
5 8
6 2
6 0
6 1
5 9
4 7
4 6
4 5
66
69
33
40
4 3
30
1 0
77
78
2 1
2 2
79
80
2 3
2 4
1
2
3
4
5
6
7
8
9
1 1
1 2
27
26
25
28
1 5
1 4
1 3
1 6
4 8
5 5
1 9
2 0
5 7
1 7
1 8
36
37
38
35
71
72
73
74
75
76
6 3
6 4
5 2
5 0
65
68
34
39
4 2
31
IN31
IN32
IN41
IN42
IN51
IN52
IN61
IN62
IN71
IN72
IN81
IN82
INDVDSR
INDVDSL
INDVDC
INDVDSW
OUT2+
OUT2-
OUT1+
OUT1-
IN1DSP
IN1MIX
IN2DSP
IN2MIX
TNF2
TNF1
BNF11
BNF21
BNF12
BNF22
BBNF2
OUT2
BBNF1
OUT1
AGND8
AGND7
VCC
AGND6
VEE
AGND5
MUTE
CL
DA
DGND
AGND4
GOUTSR
VINSR
AGND3
IN22
IN21
IN12
IN11
ROUT32
ROUT31
ROUT22
ROUT21
ROUT12
ROUT11
AGND10
GOUT2
VIN2
AGND9
GOUT1
VIN1
INDSPSR
INDSPSL
INDSPC
INDSPSW
AGND1
GOUTSW
VINSW
AGND2
GOUTC
VINC
OUTSW
OUTC
OUTSL
OUTSR
VINSL
GOUTSL
5.1ch Mode SW2 DSP
5.1ch Mode SW1
5.1ch Mode SW2 DVD
Input mute Sw
REC
SW3
REC
INSW
REC
SW1
REC
SW2
ICBLOCK DIAGRAM/ TERMINAL DESCRIPTION
TERMINAL DESCRIPTION
BLOCK DIAGRAM