![background image](http://html1.mh-extra.com/html/onkyo/pdr-155/pdr-155_service-manual_1636831013.webp)
SCHEMATIC DIAGRAM
A
1
2
3
4
5
B
C
D
E
F
G
Q3002
78L07
G I
O
Q3003
79L07
G I
O
J3002B
J3002A
J12
J13
J11
J10
J9
J14
J3
J2
J8
J7
J4
J6
J5
J15
J1
J3001B
J3001A
P8151
P3114
P5801A
P8404A
Q8081
2SA1774
P7001A
P8006
FREQ.ADJSUT
P8403A
P8001
NC
XI
RCLK
XO
VDD2
VSS2
T1
T2
CMP
VSS3
VSS1
VDD1
MUX
VREF
RDATA
QUAL
Q8801
B
U1923F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Q3113
NJM4565V
5
8
6
4
7
Q1101
2SC4617
P1001A
Q3113
NJM4565V
3
2
1
Q3055
DTA114EE
Q3116
DTA114EE
Q8023
DTA124EE
Q3054
RN1441
Q3053
RN1441
Q3052
RN1441
Q3051
RN1441
Q3115
RN1441
Q3114
RN1441
Q3118
RN1441
Q3112
RN1441
Q3119
RN1441
Q3117
RN1441
Q3111
RN1441
P3002
P3003
P3001
DA
CL
MUT
VEE
VCC
BAAS BOOST
BASS
TREBLE
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
Q3001
BD3811K1
29
70
32
41
44
49
51
53
54
67
56
58
62
60
61
59
47
46
45
66
69
33
40
43
30
10
77
78
21
22
79
80
23
24
1
2
3
4
5
6
7
8
9
11
12
27
26
25
28
15
14
13
16
48
55
19
20
57
17
18
36
37
38
35
71
72
73
74
75
76
63
64
52
50
65
68
34
39
42
31
D8024
UDZ5.1B
D8062
UDZ6.2B
Q8082
DTC114EE
Q8060
DTC114EE
C8070
45P
Q8671
74HCT7007
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Q8001
MPD784225GC
AVDD
75
AVREF1 7
AVSS 4
P00/INTP0
61
P01/INTP1
62
P02/INTP2/NMI
63
P03/INTP3
64
P04/INTP4
65
P05/INTP5
66
P10/ANI0
76
P11/ANI1
77
P12/ANI2
78
P120/RTP0
52
P121/RTP1
53
P122/RTP2
54
P123/RTP3
55
P124/RTP4
56
P125/RTP5
57
P126/RTP6
58
P127/RTP7
59
P13/AIN3
79
P130/ANO0 5
P131/ANO1 6
P14/AIN4
80
P15/ANI5 1
P16/ANI6 2
P17/ANI7 3
P20/SI1/RXD1 11
P21/SO1/TXD1 12
P22/SCK1/ASCK1 13
P23/PCL 14
P24/BUZ 15
P25/SI0/SDA0 16
P26/SO0 17
P27/SCK0/SCL0 18
P30/TO0
44
P31/TO1
45
P32/TO2
46
P33/TI1
47
P35/TI00
49
P35/TI2
48
P36/TI01
50
P37/EXA
51
P40/AD0 19
P41/AD1 20
P42/AD2
21
P43/AD3
2
2
P44/AD4
2
3
P45/AD5
2
4
P46/AD6
2
5
P47/AD7
26
P50/A8
27
P51/A9
28
P52/A10
29
P53/A11
30
P54/A12
31
P55/A13
32
P56/A14
34
P57/A15
35
P60/A16
36
P61/A17
37
P61/A18
38
P63/A19
39
P64/RD
4
0
P65/WR
41
P66/WAIT
42
P67/ASTB
43
P70/SI2/RXD2 8
P71/SO2/TXD2 9
P72/SCK2/ASCK2 10
VDD0
74
VDD1
68
VPP
71
VSS0
67
VSS1
33
X1
70
X2
69
XT1
73
XT2
72
RESET
60
X8451
12.288MHZ
Q8691
BA33C25
2.5V
5
3.3V
4
G
3
NC
2
VI
1
A1
A3
A2
A0
Q0/D0
Q1/D1
Q2/D2
Q3/D3
Q4/D4
Q5/D5
Q6/D6
Q7/D7
GND
CE
A10
OE
A4
A5
A6
A7
A12
A15
A16
A18/NC
VCC
WE/A18
A17
A14
A13
A8
A9
A11
Q8611
M
X27L2000-12
1
2
3
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
5
Q8651
74HC541
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
GND
10
VCC20
Y118
Y217
Y316
Y415
Y514
Y613
Y712
Y811
G1
1
G219
Q8302
NJM4565V
3
2
4
1
Q8303
NJM4565V
3
2
4
1
Q3057
NJM4565V
3
2
4
1
Q8301
NJM4565V
3
2
4
1
Q3101
NJM4565V
3
2
4
1
Q8303
NJM4565V
5
8
6
7
Q3057
NJM4565V
5
8
6
7
Q8302
NJM4565V
5
8
6
7
Q8301
NJM4565V
5
8
6
7
Q3101
NJM4565V
5
8
6
7
Q8451
TC7WU04FU
GND
4
1
6
3
7
2
5
VCC 8
TVDD
DVDD
VCOM
DFZ1
LOUT3
ROUT3
LOUT2
ROUT2
LOUT1
ROUT1
LIN
RIN
PVDD
VREFH
AVDD
AVSS
DFZ2
CSN
CCLK
CDTI
CDTO
INT1
INT0
SDTI3
SDTI2
PDN
RX1
I2C
RX2
TST
RX3
SLAVE
RX4
PVSS
R
SDTI1
SDTO
BICK
LRCK
MCKO
TX
DVSS
XTI
XTO
Q8401
AK4586
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
L8451
NCH-1479
L8001
NCH-1479
L8691
NCH-1479
L8801
NCH-1477
L8404
022M
L8403
022M
L8402
022M
L8401
022M
L8601
470M
L8501
NCH-1471
L8502
022M
X8801
4.332MHZ
X8401
12.288MHZ
X8001
12.500MHZ
AT-49/U03C
Q8612
M
5M5V108DKV-70H
A0 20
A1 19
A10 31
A11
1
A12
12
A13
4
A14
11
A15
7
A16
10
A2 18
A3 17
A4
16
A5
15
A6
14
A7
13
A8
3
A9
2
CE2
6
GND 24
IO1 21
IO2 22
IO3 23
IO4 25
IO5 26
IO6 27
IO7 28
IO8 29
NC
9
VCC
8
CE1 30
OE 32
WE
5
Q8603
TC74VHC74FT
1CK
3
1D
2
1Q
5
2CK
11
2D
12
2Q
9
GND
7
VCC
14
1CLR
1
1PR
4
1Q
6
2CLR
13
2PR
10
2Q
8
Q8602
TC74VHC574FT
0D
20
Q
1
9
1D
31
Q
1
8
2D
42
Q
1
7
3D
53
Q
1
6
4D
64
Q
1
5
5D
75
Q
1
4
6D
86
Q
1
3
7D
97
Q
1
2
CK
11
GND
10
OUTCTL
1V
C
C
20
Q8601 TC74VHC574FT
0D
20
Q
1
9
1D
31
Q
1
8
2D
42
Q
1
7
3D
53
Q
1
6
4D
64
Q
1
5
5D
75
Q
1
4
6D
86
Q
1
3
7D
97
Q
1
2
CK
11
GND
10
OUTCTL
1V
C
C
20
Q8501
CS493292-CL
A0/SCCLK 7
A1/SCDIN
6
AUDATA0
41
AUDATA1
40
AUDATA2
39
CLKIN
30
CLKSEL
31
CMPCLK/SCLKN2
2
8
CMPDAT/RCV958/SDATAN2
2
7
29 CMPREQ/LRCLKN2
29
DATA0 17
DATA1 16
DATA2 15
DATA3 14
DATA4 11
DATA5 10
DATA6 9
DATA7 8
DC
38
DD
37
FILT1
33
FILT2
32
LRCKN1
2
6
LRCLK
42
MCLK
44
SCDIO/SCDOUT
19
SCLK
43
SCLKN1/STCCLK2
25
SDTAN1
22
VDD1
1
VDD2 12
VDD3
23
VDDA
34
VSS1
2
VSS2 13
VSS3
24
VSSA
35
XMT958
3
ABOOT/_INTREQ
20
CS
18
EXTMEM
21
RD/R/_W
5
RESET
36
WR/DA
4
D8002
D3112
D3111
D8001
D8023
D8061
D8060
D8402
D8401
C3034
220/16
C3033
220/16
C3036
2.2/50
C3022
220/16
C3021
220/16
C3018
10/16
C3017
10/16
C8394
10/16
C8424
10/16
C8396
10/16
C8395
10/16
C8426
10/16
C8425
10/16
C3052
10/16
C3054
2.2/50
C3058
100/6.3
C3051
10/16
C3053
2.2/50
C3057
100/6.3
C8693
47/6.3
C8692
47/6.3
C8391
10/16
C8393
10/16
C8392
10/16
C8423
10/16
C8422
10/16
C8421
10/16
C3116
4.7/50
C3113
4.7/50
C3122
10/16
C3120
10/16
C3119
10/16
C3118
2.2/50
C3112
10/16
C3111
10/16
C8001
100/6.3
C3013
10/16
C3014
10/16
C8003 0.1F
C8801
100/6.3
C8806
100/6.3
C3016
10/16
C3015
10/16
C8411
10/16
C8412
10/16
C1003
2.2/50
C1002
3.3/50
C8004
100/6.3
C8059
1/50
C8406 220/6.3
C8410
22/16
C8414
47/6.3
C8404
220/6.3
C8604
47/6.3
C8503
47/6.3
C8507
47/6.3
C3136
C3135
C3134
C3133
C3132
C3131
C3123
104
C3035
104Z
C3121
104Z
C8451
104Z
C8454
150J
C3008
101J
C3007
101J
C3012
104Z
C3010
101J
C3009
101J
C8324 330J
C8304
152J
C8314
821J
C8315
821J
C8316
822J
C8306
153J
C8305
152J
C8323
330J
C3061
103K
C3056
101J
C3060
152J
C3059
152J
C3055 101J
C8691
104Z
C8671 104Z
C8303
152J
C8313
821J
C8312
821J
C8302
152J
C8311
821J
C8301
152J
C3117
222K
C3114
221J
C3115
103J
C3002
101J
C3001
101J
C3006
101J
C3005
101J
C3011
104Z
C3004
101J
C3003
101J
C8074
104Z
C3030
154J
C3029
154J
C3102
330J
C3101
330J
C1101
103K
C8804 330J
C8803
330J
C8805
104Z
C8802
561J
C8401
150J
C8402
150J
C3020
104Z
C3019
104Z
C3023
472J
C3024
472J
C3032
154J
C3031
154J
C3028
224J
C3027
224J
C3026
224J
C3025
224J
C1001
101J
C8007
104Z
C8068
104Z
C8069
090D
C8061
104Z
C8060
104Z
C8416
330J
C8407
104Z
C8408
104Z
C8409
104Z
C8417
330J
C8418
102J
C8413
104Z
C8403
104Z
C8405
104Z
C8651
104Z
C8612
104Z
C8603
104Z
C8611
104Z
C8616
101J
C8602
104Z
C8601
104Z
C8617
101J
C8613
101J
C8614
101J
C8615
101J
C8511 105K
C8505
101J
C8504
101J
C8506
104Z
C8513
103K
C8510
105K
C8514
102J
C8508
105K
C8509
471J
C8512
104Z
C8501
104Z
C8502
104Z
R8211
R8206
R8205
R8204
R8203
R8202
R8201
R8417
0
R3017
R3067
220K
R8029
1K
R8178
10K
R8451
1M
R8452
47
R3014
470K
R3013
470K
R3008
2.2K
R3007
2.2K
R3016 470K
R3015 470K
R3010
330
R3009
330
R8344
3.3K
R8324
2.2K
R8314
2.2K
R8304
22K
R8306
22K
R8305
22K
R8316
2.2K
R8315
2.2K
R8326
2.2K
R8325
2.2K
R8333
3.3K
R8334
3.3K
R8343
3.3K
R3066
330
R3065
330
R3052
3.3K
R3136
100
R3135
100
R3134
100
R3133
100
R3132
100
R3131
100
R3054
3.3K
R3056
220K
R3058
2.2K
R3060
10K
R3064
10K
R3063
10K
R3062
47
R3051
3.3K
R3053
3.3K
R3055
220K
R3057
2.2K
R3059 10K
R3061
47
R8401
47
R8506
10
R8507
10
R8508
10
R8509
10
R8510 10
R8511 10
R8512 10
R8513 10
R8313
2.2K
R8323
2.2K
R8303
22K
R8302
22K
R8312
2.2K
R8322
2.2K
R8301
22K
R8311
2.2K
R8321
2.2K
R3122
47K
R3128
22K
R3124
6.8K
R3125
18K
R3123
22K
R3127
100
R3126
270
R3121
2.2K
R3129
2.2K
R3120
22K
R3119
330
R3116
330
R3118
22K
R3117
22K
R3115
330
R3114
22K
R3113
22K
R3112
330
R3111
330
R3130
220K
R3002
330
R3001
330
R3006
330
R3005
330
R3012
470K
R3011
470K
R3004
2.2K
R3003
2.2K
R8086
10K
R8085
3.9K
R3025
10K
R3026
10K
R3024
10K
R3023
10K
R8180
10K
10K
10K
10K
10K
10K
R8179
NONE
NONE
NONE
NONE
NONE
NONE
R8080
NONE
6.8K
6.8K
6.8K
6.8K
6.8K
R8079
10K
10K
10K
10K
10K
10K
R8074
100
R3021
3.3K
R8410 1K
R8411 1K
R8412 220
R8413 220
R8414 220
R8415
220
R8408 47
R8409 47
R8102
33K
6.8K
6.8K
6.8K
6.8K
6.8K
R3110
1K
R3109
1K
R3104
1K
R3106
3.3K
R3103
1K
R3105
3.3K
R3108
3.3K
R3107
3.3K
R8162
10K
R8163
10K
R8164
10K
R8066
1K
R1103
1K
R1102
3.3K
R1101
680K
R8803
1K
R8802
1K
R8801
1K
R3022
3.3K
R3020
4.7K
R3019
4.7K
R8020
47K
R8023
220K
R8002
4.7K
10K
10K
10K
10K
10K
R8003 1K
R8005
R8106
10K
R8013
470
R8115
10K
R8126
820
R1002
2.2K
R1003
2.2K
R1001
100K
R8504
4.7K
R8132
10K
R8026
10K
R8138
2.2K
R8137
2.2K
R8139
22K
R8140
22K
R8037
220
R8038
220
R8039
10K
R8040
10K
R8059
220
R8058
220
R8057
220
R8056
220
R8055
220
R8054
220
R8053
220
R8052
220
R8051
220
R8050
220
R8049
220
R8048
220
R8047
220
R8046
220
R8043
220
R8042
220
R8041
220
R8032
10K
R8031
220
R8030
220
R8025
10K
R8024
10K
R8036
1K
R8035
1K
R8114
10K
R8116
10K
R8019
82
R8018
82
R8017
82
R8016
82
R8015
82
R8014
470
R8012
470
R8011
470
R8010
470
R8001
1K
R8006 470
R8076
10K
10K
10K
10K
10K
10K
R8077
10K
NONE
NONE
NONE
10K
NONE
R8176
10K
NONE
NONE
NONE
NONE
NONE
R8177
NONE
10K
10K
10K
10K
10K
R8065
470
R8084
10K
R8083
R8082
R8081
R8161
47K
R8071 4.7K
R8160
47K
R8064
1K
R8063
1K
R8062
1K
R8617
1K
R8616
1K
R8615
1K
R8614
1K
R8419
330
R8420
330
R8421 10K
R8416
18K
R8407
47
R8402
47
R8403
47
R8404
47
R8405
47
R8406
47
R8651
220
R8652
220
R8653
220
R8654
220
R8655
220
R8656
220
R8657
220
R8658
220
R8612
0
R8611
R8613 1K
R8608
10K
R8607
10K
R8606
10K
R8605
10K
R8604
10K
R8603
10K
R8602
10K
R8601
10K
R8503
10K
R8529
33K
R8520
10K
R8519
10K
R8534
47
R8535
47
R8536
47
R8537
47
R8538
47
R8518
10K
R8514
220
R8515
220
R8516
220
R8517
220
R8521
47
R8522
47
R8523
47
R8524
47
R8525
47
R8526
47
R8527
47
R8528
4.7K
R8530
220
R8531
4.7K
R8532
4.7K
R8533
47
R8501
220
R8502
220
R8505
220
STEREO
SD
TUMUT
TU_R
TU_L
DET
+12VTU
+5V
FMSIG
PLLCLK
PLLSDO
PLLCE
RDSCLK
RDSDATA
RDSSIG
RDS
SELMUT
CELCLK
CELSDO
CPUGND
RS_VO
MCSDI
LS_VO
MCSDO
STEREO
SD
TUMUT
AMUT
POWRL
SPAFRL
SELMUT
CELCLK
CELSDO
SYSOUT
HPIN
SW_VO
MCCLK
C_VO
RESET
VDD
VPP
MCRDY
REMIN
FAC1
FAC2
-VP
+5.6S
CPUGND
PLLSDO
SYSIN
CPUGND
PLLCLK
MCRST
MCRST
PLLCE
MCCLK
MCCLK
MCSDO
MCSDO
MCSDI
MCSDI
DIRCS
MCRDY
MCRDY
DSPSI
XREADY
INT1
XSCLK
INT0
XSO
INTREQ/_ABOOT
XSI
DSPCS
XRESET
ROM/_RAM
ADLT
ADRT
FR_VIN
FR_MIX
FL_VIN
FL_MIX
RS_VIN
LS_VIN
SW_VIN
C_VIN
ADDR15
ADDR16
ADDR17
DP
DVDPOWER
DSPCLK
DSPSDO
DSPRST
DIRPD
TRAYIN
RESET
ADLT
ADRT
+5VA
POFF
VPP
BAND
DVBND
FR_VIN
FL_VIN
+2.5VDSP
+3.3VDSP
XLT
+12V
RDSCLK
RDSDATA
RDSSIG
+13V
RIN
LIN
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
VCOM
AVDD
PVDD
DSPRST
R
DSPSDO
DRS[3V]
DSPCLK
DSO[3V]
-12V
DIRCS
ADDR17
DCL[3V]
DSPCLK
ADDR16
A17[3V]
DSPSDO
ADDR15
A16[3V]
FL_VO
DSI[3V]
ROM/_RAM
A15[3V]
INT1[3V]
DSPCS
ROM[3V]
INT0[3V]
DCS[3V]
+3.3VDSP
RX2
DIRPD
FR_VO
DVDD
TVDD
+3.3VCC
EXTERM
AMUT
HPIN
LS_VO
WE
RS_VO
C_VO
A17[3V]
A16[3V]
A15[3V]
TX
GND
RX2
+5V
SPAFRL
SYSIN
SHPMD
SW_VO
A8
A9
A10
A11
A12
A13
A14
A15
SW_PO
A8
A9
A11
A12
A13
A14
A10
LRDA
SRDA
CDA
IO7
A7
IO6
LRCK
A6
IO5
HPR
BCK
A5
IO4
A4
IO3
HPL
A3
INTREQ/_ABOOT
DSI[3V]
DCS[3V]
A2
IO2
XLT
A1
WE
IO1
XRESET
DIRDA
A0
A1
A2
A3
A4
A5
A6
A7
A0
IO0
XSO
A0
XSI
XSCLK
XREADY
RD
DOUT
TRAYIN
HPIN
XTI
EXTERM
REMIN
IO0
+5.6S
CST12M
IO1
CPUGND
IO2
HPL
IO3
AMUT
HPR
IO4
DRS[3V]
IO5
IO6
IO7
CDA
DCL[3V]
SRDA
LRDA
RD
+12V
+12V
WE
-12V
-12V
DSO[3V]
TVGND
12VTU
AGND
+13V
+5.6S
CPUGND
CPUGND
GND
GND
+5V
+5VA
DVDPOWER
POWRL
DVDDC
-VP
FAC2
FAC1
UGR6P
UGQ3P
UGT3P
UDT3P
R8002
R8102
R8080
R8180
R8079
R8179
R8077
R8177
MODE3
MODE1
MODE2
DVD
BAND
R8076
R8176
UDS4P
UJJ2N
CDR
MD
for FLASH WRITER
TV IN
IN
OUT
OUT
IN
MULTI CHANNEL OUTPUT SW
C
RS
LS
FR
FL
UJJ only
to Tuner unit
<MPP> only
U1
: DSP CIRCUIT PC BOARD
NADG-7673
0
To U2: Display circuit PC board
1SS355
1SS355
0
0
0
0
0
To DVD Connection PCB
To U3: Video Output PC board
NOTE: All the diodes that are not indicated are 1SS355.
0
NC
0
0
NC
UPP
6.8K
10K
10K
10K
6.8K
10K
10K
6.8K
6.8K
10K
<UPP> only
From connector-2 PCB (to power supply PCB)
To Headphone terminal
PC board
To connector-3 PCB
(DVD connct. PCB)
+12V
-12V
MARK
SRAM
FLASH ROM