Onkyo TX-SR55 User manual

TX-SR55
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
Black model
MODEL TX-SR55
120V AC, 60HzBMDD
Ref. No. 3855
122004
RC-591M
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

TX-SR55
SPECIFICATIONS
Amplier Section
Video Section
Tuner Section
FM
AM
General
Video Inputs
Video Outputs
Audio Inputs
Audio Outputs
Other Jacks
Specifications and features are subject to change without
notice.
Power Output
(2 channels driven): 85 W + 85W (8 ,20Hz–20kHz, FTC)
120 W +120 W (6 ,1kHz,DIN)
150 W + 150 W (6 ,1kHz,JEITA)
Dynamic Power 220 W + 220 W (3 ,Front)
165 W + 165 W (4 ,Front)
100 W + 100 W (8 ,Front)
THD (Total Harmonic
Distortion) 0.08 % (Power Rated)
Damping Factor 60 (Front,1kHz,8 )
Input Sensitivity and
Impedance 200 mV/ 47 k (LINE)
Output Level and
Impeadance 200 mV/ 470 (REC OUT)
Frequency Response 10 Hz–100 kHz/ +1 dB-3 dB (Direct
mode)
Tone Control ±10 dB, 50 Hz (BASS)
±10 dB, 10 kHz (TREBLE)
SN Ratio 106 dB (LINEIHF-A)
Speaker Impedance 6 –
Input Sensitivity/Output
Level and Impedance 1Vp-p /75 (Component and S-VideoY)
0.7 Vp-p /75 (Component Pb/Cb,Pr/Cr)
0.28 Vp-p /75 (S-Video C)
1 Vp-p /75 (Composite)
Component Video
Frequency Response 5 Hz – 50 MHz
Tuning Frequency Range 87.5 MHz– 107.9 MHz
Usable Sensitivity Stereo:17.2 dBf 2 µV(75 IHF)
Mono: 11.2 dBf 1 µV(75 IHF)
S/N Ratio Stereo: 70 dB (IHF-A)
Mono:76 dB (IHF-A)
THD Stereo: 0.3 % (1kHz)
Mono:0.2 % (1kHz)
Frequency Response 30 Hz–15 kHz / ±1 dB
Stereo Separation 45 dB ( 1kHz )
Tuning Frequency Range 530 kHz–1700 kHz
Usable Sensitivity 30 µV
S/N Ratio 40 dB
THD 0.70%
Power Supply AC 120 V, 60 Hz
Power Comsumption 6.7A
Stand-by Power
Comsumption 1.0 W
Dimensions(W x H x D) 483 W x 175 H x 430 D mm
19"W x 6-7/8" H x 16-15/16" D inches
Weight 14.5 kg
32.0 lbs
Component Video Inputs 1,2,3
S-VideoCompatibleJack
Inputs DVD,VIDEO1,VIDEO2,VIDEO3,
VIDEO4
A/V Inputs DVD,VIDEO1,VIDEO2,VIDEO3,
VIDEO4
Component Video
Output OUT
S-VideoCompatibleJack
Outputs MONITOR OUT,VIDEO1,VIDEO2
A/V Outputs MONITOR OUT,VIDEO1,VIDEO2
Digital Inputs Optical : 3, 1 (Front Panel)
Coaxial : 2
Analog Inputs DVD(MULTICHANNEL),VIDEO1,
VIDEO2,VIDEO3,VIDEO4,TAPE,CD
Multichannel Inputs 6
Digital Outputs 1 (Optical )
Analog Outputs TAPE,VIDEO1,VIDEO2
Subwoofer Pre Outputs 1
Speaker Outputs 9
Phones 1
RS-232 Control 1
IR Input/Output 1
12V Trigger Out 3

2.To initialize the unit
This device employs a microprocessor to perform various
functions and operations.If interference generated by an external
power supply, radio wave, or other electrical source results in
accident which causes the specified operations and functions to
operate abnormally.
To perform a result, please follow the procedure below.
1.Press and hold down the VIDEO-1 button, then press the
STANDBY/ON button.
2.After "CLEAR" is displayed, the preset memory and each
mode stored in the memory, such as surround, are
initialized and will return to the factory setting.
3. Unplug the power supply cord.
3. Safety-check out
(U.S.A. model only)
After correcting the original service problem, perform the
following safety check before releasing the set to the customer.
Leakage Current Check
Measure leakage current to a known earth ground(water pipe,
conduit, etc.) by connecting a leakage current tester between
the earth ground and exposed metal parts of the appliance
(input/output terminals, screwheads,metal overlays, etc.).
Plug the power supply cord directly into a 120V AC 60 Hz outlet
and turn Standby switch on.Any current meausred must not
exceed 0.5mA.
1. Replacing the fuses
This symbol located near the fuses indicates that the
fuse used is fast operating type. For continued protection against
fire hazard, replace with same type fuse.For fuse rating refer to
the marking adjacent to the symbol.
Ce symbole indique que le fusible utlise est a rapide.
Pour une protection permanente, n'untiliser que fusibles de
meme type.Ce darnier est la qu le present symbol est
appse.
CIRCUIT NO. PART NO.
DESCRIPTION
F6901,F6902 252301 or 12A-TUL-250V or
252196 12A-UL/T-314,Fuse
F901 252199 10A-UL,Fuse
F903 252164 or 5A-UL/T-237 or
252258 5A-T/UL-ST2,Fuse
F9501 252160 or 2.5A-UL/T-237 or
252254 2.5A-T/UL-ST2,Fuse
TX-SR55
SERVICE PROCEDURES

A038
A039
U3
A033
A037
A070
U11
A187
A031
A059
A031
A046
A091
A031 A031
A036
A031
U33
A031
A031
A042
A031
A211
A031
A101
Q6050
Q6055
Q6064
Q6066
A031
Q6050A
A151
A031
A031
A031
A031
T901
A070
A196
A057
E800
A056
A041 A018
A011
A006
A001
A031
A176
A017
A026
A051
A206
A201
A196
A029
A050
A013
A206
A201
A216 A101
Q6050A
A031
A031
A081
U2
U27
U36
U18 U21
U22
U12
U32
U26
U30
U31 U29
U6
U19
U5
U16
U17
U7
U13
U4
U1
P761
P7502
P6931
P7501
F903F901
F9501
F6902
F6901
U14
U23
A016
A045
A021
A043
A161
A161
A161 A189
A188
TX-SR55
EXPLODEDVIEW
TX-SR55
A
1
2
3
4
BCDE

TX-SR55
BLOCK DIAGRAM Amplifier section
TAPE_OUT_R TAPE_OUT_L
V2_OUT_L V2_OUT_R V1_OUT_L V1_OUT_R
Z2_R
Z2_L
MIX_R
MIX_L
SOURCE_L
SOURCE_R
RECOUT_L
RECOUT_R
MCH_SR MCH_SL MCH_SW MCH_CT
ADLT+ ADRT+ ADLT- ADRT-
ADRT- ADRT+ ADLT+ ADLT-
RX0
RX1
RX2
RX3
RX4
RX5
TX
RX6
DAC_FL DAC_CT DAC_SW DAC_FR DAC_SR DAC_SBR DAC_SBL DAC_SL
VOLIN_SBR
VOLIN_SBL
MIC
TUNER PACK
VIDEO4
NJW1157
CD
TAPE OUT
TAPE IN
VIDEO3 IN
VIDEO2 OUT
VIDEO2 IN
VIDEO1 OUT
VIDEO1 IN
DVD
MSL/MSR
MC/MSW
COAX 1
COAX 2
Digital Input
OPT FRNT
OPT1
OPT2
OPT3
OPT
Digital Output
-6dB
-6dB
+9.7dB
TC9162
DIR
2ch ADC
CS42518 8ch DAC
+6dB
VLSCLPF
TONE
TONE
MIC AMP
+6dB +6dB
VLSCLPF
+6dB
VLSCLPF
+6dB
VLSCLPF
LPF VLSC
VLSCLPF
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
73
73
51
74
41
43
23
25
22
24
26
21
27
29
28
30
44
42
46
45
48
47
93
92
91
95
90
89
88
86
85
84
83
87
82
81
80
94
9
8
12
17
10
19
20
21
11
18
4
25
3
26
2
27
22
7
23
6
5
24
16
15
14
13
49
48
43
42
47
46
45
44
50
37 36
17
19
35 34 32 33 31 30 28 29 26 27
+
+
A
A
A
A
A
1
2
3
4
5
BCD

TX-SR55
BLOCK DIAGRAM Amplifier section
Z2RL SBRL HPRL HPIN FRL CSRL
FL_PO
FR_PO
CT_PO
SBL_PO
SBR_PO
SW_PO
SL_PO
SR_PO
SBMUT Z2LMUT AMUT
Z2SW_PO
Z2L_PO
Z2R_PO
DC24 in for
A-BUS
40k IR in1 for
A-BUS
40k IR in2 for
A-BUS
56k IR OUT for
A-BUS
12V TRIGGER A
12V TRIGGER B
12V TRIGGER C
IR IN
IR OUT
RJ-45 for
A-BUS
RIex
RS-232C
12V TRIDDER
CONTROL
IR 56k
RE-MODULATOR
IR
DE-MODULATOR
IR
DE-MODULATOR
RI
INTERFACE
INTERFACE
RS-232C
SW
POWER AMPLIFIER
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
PREOUT
FRONT LEFT
FRONT RIGHT
CENTER
SURR. LEFT
SURR. RIGHT
HEADPHONES
ZONE2 LEFT
ZONE2 RIGHT
SUUR. BACK
LEFT
SUUR. BACK
RIGHT
SPEAKER TERMINALS
R
L
SW
TONE
TONE
+6dB@ZONE2
+20.2dB
TONE
TONE
DSP SD_RAM
IC42S16100
2M Byte
CS494003
FLASH ROM
MX29LV040
2M Bit
LPF VLSC
+6dB
VLSCLPF
+6dB
VLSCLPF
+6dB
ZONE2 PREOUT/LINEOUT
BD3814
7
6
5
4
3
2
1
8
107
118
106
81
80
86
134
109
110
58
54
63
62
64
1
26 27 21 20 22 23
27
28
A
A
A
1
2
3
4
5
BCD

TX-SR55
BLOCK DIAGRAM Video section
VIDEO1
DVD
VIDEO2
VIDEO3
VIDEO4
S VIDEO INPUT
DVD
VIDEO1
VIDEO2
VIDEO3
VIDEO4
Y
C
YC
YC
Y
C
YC
COMPOSITE VIDEO INPUT
COMPONENT VIDEO INPUT
Y1
CB1
CR1
Y2
CB2
CR2
Y3
CB3
CR3
NJM2595
Y
NJM2595
NJM2595
C
OSD
LC74763-9836
DAC
A
DAC
B
DAC
C
DAC
D
DAC
E
DAC
F
AIN2
AIN1
AIN3
AIN4
AIN5
OSD*(SDET+SI)
SDET*{OSD+(OSD*SI)}
SDET*{OSD+(OSD*SI)}
SDET*OSD
C2
DIGITAL VIDEO ENCO
D
ADV7172
DIGITAL VIDEO DECODER
ADV7183A
Y1
COMPOSITE
C1
COMPOSITE / Y2
6dB
6dB
6dB
6dB
6dB
6dB
6dB
6dB
6dB
0dB
0dB
-6dB
-6dB
-6dB
-6dB
A
1
2
3
4
5
BCD

TX-SR55
BLOCK DIAGRAM Video section
COMPONENT VIDEO OUTPUT
Y
CB
CR
A
B
COMPOSITE VIDEO OUTPUT
MONITOR
VIDEO1
VIDEO2
VIDEO2
CY
CY
VIDEO1
CY
MONITOR
V
Y
C
CB
CR
Y
DACA
DACB
DACC
DACD
DACE
DACF
LA7106M
S VIDEO OUTPUT
SDET*OSD
SDET*OSD
SDET*{OSD+(OSD*SI)}
LA7106M
SDET*{OSD+(OSD*SI)}
SDET*{OSD+(OSD*SI)}
SDET*{OSD+(OSD*SI)}
ENCODER
7
2
6dB 6dB 6dB
6dB
6dB
6dB
A
1
2
3
4
5
BCD

TX-SR55
BLOCK DIAGRAM
A
1
2
3
4
5
BCDEFGH
Z2RL SBRL HPRL HPIN FRL CSRL
FL_PO
FR_PO
CT_PO
SBL_PO
SBR_PO
SW_PO
SL_PO
SR_PO
TAPE_OUT_R TAPE_OUT_L
V2_OUT_L V2_OUT_R V1_OUT_L V1_OUT_R
Z2_R
Z2_L
MIX_R
MIX_L
SOURCE_L
SOURCE_R
RECOUT_L
RECOUT_R
MCH_SR MCH_SL MCH_SW MCH_CT
ADLT+ ADRT+ ADLT- ADRT-
ADRT- ADRT+ ADLT+ ADLT-
RX0
RX1
RX2
RX3
RX4
RX5
TX
RX6
DAC_FL DAC_CT DAC_SW DAC_FR
SBMUT Z2LMUT AMUT
DAC_SR DAC_SBR DAC_SBL DAC_SL
Z2L_PO
Z2R_PO
VOLIN_SBR
VOLIN_SBL
MIC
TUNER PACK
VIDEO4
NJW1157
CD
TAPE OUT
TAPE IN
VIDEO3 IN
VIDEO2 OUT
VIDEO2 IN
VIDEO1 OUT
VIDEO1 IN
DVD
DC24 in for
MSL/MSR
A-BUS
40k IR in1 for
A-BUS
MC/MSW
40k IR in2 for
A-BUS
56k IR OUT for
A-BUS
COAX 1
COAX 2
Digital Input
OPT FRNT
OPT1
OPT2
OPT3
OPT
Digital Output
12V TRIGGER A
12V TRIGGER B
12V TRIGGER C
IR IN
IR OUT
RJ-45 for
A-BUS
RIex
RS-232C
12V TRIDDER
CONTROL
IR 56k
RE-MODULATOR
IR
DE-MODULATOR
IR
DE-MODULATOR
RI
INTERFACE
INTERFACE
RS-232C
SW
POWER AMPLIFIER
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
PREOUT
FRONT LEFT
FRONT RIGHT
CENTER
SURR. LEFT
SURR. RIGHT
HEADPHONES
ZONE2 LEFT
ZONE2 RIGHT
SUUR. BACK
LEFT
SUUR. BACK
RIGHT
SPEAKER TERMINALS
R
L
TONE
TONE
+6dB@ZONE2
-6dB
-6dB
+9.7dB
+20.2dB
TC9162
DIR
2ch ADC
CS42518 8ch DAC
+6dB
VLSCLPF
TONE
TONE
MIC AMP
DSP SD_RAM
IC42S16100
2M Byte
CS494003
FLASH ROM
MX29LV040
2M Bit
+6dB +6dB
VLSCLPF
+6dB
VLSCLPF
+6dB
VLSCLPF
LPF VLSC
+6dB
VLSCLPF
+6dB
VLSCLPF VLSCLPF
+6dB
ZONE2 PREOUT/LINEOUT
BD3814
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
73
73
51
74
41
43
23
25
22
24
26
21
27
29
28
30
44
42
46
45
48
47
93
92
91
95
90
89
88
86
85
84
83
87
82
81
80
7
6
5
4
3
2
1
94
8
9
8
12
17
10
19
20
21
11
18
4
25
3
26
2
27
22
7
23
6
5
24
16
15
14
13
49
48
43
42
47
46
45
44
50
37 36
17
19
107
118
106
81
80
86
134
109
110
58
54
63
62
64
1
35 34 32 33 31 30 28 29 26 27 21 20 22 23
27
28
+
+
A
A
A
A

TX-SR55
BLOCK DIAGRAM Video section
A
1
2
3
4
5
BCDEFGH
VIDEO1
DVD
VIDEO2
VIDEO3
VIDEO4
S VIDEO INPUT
DVD
VIDEO1
VIDEO2
VIDEO3
VIDEO4
Y
C
YC
YC
Y
C
YC
COMPOSITE VIDEO INPUT
COMPONENT VIDEO INPUT
Y1
CB1
CR1
Y2
CB2
CR2
Y3
CB3
CR3
COMPONENT VIDEO OUTPUT
Y
CB
CR
A
B
NJM2595
Y
NJM2595
NJM2595
C
COMPOSITE VIDEO OUTPUT
MONITOR
VIDEO1
VIDEO2
VIDEO2
CY
CY
VIDEO1
CY
MONITOR
OSD
LC74763-9836
V
Y
C
CB
CR
Y
DACA
DACB
DACC
DACD
DACE
DACF
AIN2
AIN1
AIN3
AIN4
AIN5
LA7106M
S VIDEO OUTPUT
SDET*OSD
OSD*(SDET+SI)
SDET*{OSD+(OSD*SI)}
SDET*{OSD+(OSD*SI)}
SDET*OSD
SDET*{OSD+(OSD*SI)}
SDET*OSD
LA7106M
SDET*{OSD+(OSD*SI)}
SDET*{OSD+(OSD*SI)}
SDET*{OSD+(OSD*SI)}
C2
DIGITAL VIDEO ENCODER
ADV7172
DIGITAL VIDEO DECODER
ADV7183A
Y1
COMPOSITE
C1
COMPOSITE / Y2
6dB
6dB
6dB
6dB
6dB
6dB
6dB
6dB
6dB
0dB
0dB
-6dB
-6dB
-6dB
-6dB
6dB 6dB 6dB
6dB
6dB
6dB

TX-SR55
SCHEMATIC DIAGRAM 1
Preamplifier section
+12VA
DAC_FR
MIX_R
-12VA MIX_L PZ2_L PZ2_R VIN_LDAC_SBL/Z2L
DAC_FR
DAC_SBR/Z2R
FSWSTB FSWDAT
FSWCLK
AIN_L
AIN_R
DAC_FL
DAC_FL VAI_L VAI_R VIN_R
Z2TONE_RI
Z2TONE_LI
ADRT+
ADRT-
ADLT+
ADLT-
AIN_L
MSR MCT MSL
MSW
SW_VO
V4_R
V4_L
MIC_L
AIN_R VLTNSTB
VLTNCLK
VLTNDAT
TUP_L TUP_R
Z2TONE_LI Z2TONE_RI
FSWCLK FSWDAT FSWSTB Z2BDDAT Z2BDCLK Z2BDMUT VLTNSTB VLTNCLK VLTNDAT APOWER SPRLF SPRLCS SPRLSB
FANCTR
SPRLZ2
SOURCE_L
SOURCE_R
REC_L
REC_R
TU_L
TU_R
DSPRST DSPCS DSPFCS DSPINT DSPFINT DIGCLK DIGSDI DIGSDO DIRINT DIRSDI DIRCS DIRRST ADCRST
V3_L
V3_R
V1_LI
V1_RI
DVD_R
DVD_L
V2_RI
V2_LI
TA_RI
TA_LI
CD_R
CD_L
DVD_L
V1_LI
DVD_R
V1_RI
MSW
MSL
MSR
MCT
TA_LO
TA_RO
V2_RO
V2_LO
TA_LI
TA_RI
V1_RO
V1_LO
V2_LI
V2_RI
V3_R
V3_L
PH_L
PH_R
SW_PO FL_PO FR_PO SBR_PO SBL_PO CT_PO SL_PO SR_PO
CD_L
CD_R
V4_L V4_R
MIC_L
VIN_R
DAC_CT
VIN_L
DAC_SR
DAC_SL
DAC_SW
VIN_SBR
VIN_SBL
DSP Section
TAPE OUT
VIDEO2 OUT
VIDEO3 IN
TAPE IN
VIDEO2 IN
VIDEO1 OUT
VIDEO1 IN
DVD
MSL/MSR
MC/MSW
SCH. 2
TO NAVD-8409(SCH. 7) TO NADG-8366 (SCH. 9)
CD
NAAR-8365-1(1)
Front
R374
470
R376
10K
R377 10K
R379 10K R373
470
R375
10K
C384 47/16
+
C383 47/16
+
R437 0
R371
1.2K
R372
1.2K
R378 10K
R380 10K
C381 330J
C358
4.7/50
+
C352
104Z
C355
4.7/50
+
C365
104Z
C366 47/16
+
C368 47/16
+
C367 47/16
+
C369 47/16
+
C370 47/16
+
C371 47/16
+
C372 47/16
+
C373 47/16
+
C374
10/16
+
C379
10/16 +
C380
1/50
+
C375
10/16
+
R438 0
Q304
79L07
3O2
I
1
G
Q305
TC9162
1VSS
2
3
4
5
6
7
8
9
10
11
12
13 STB
14 GND 15
CLK
16
DATA
17
COM4
18
S7
19
COM3
20
S6
21
S5
22
COM2
23
S4
24
S3
25
COM1
26
S2
27
S1
28
VDD Q306:A
NJM4565M-D
7
4
5
6
8
Q306:B
NJM4565M-D
12
3
C329
221J C330
221J C323
221J C324
221J
C325
221J C326
221J
C327
221J C328
221J C313
221J C314
221J
C315
221J C316
221J
C319
221J C320
221J
R324
330
R323
330
R322
330
R321
330
R320
330
R319
330
R318
330
R317
330
R316
330
R315
330
R313
330
R330
56K
R329
56K
R305
330
R306
330
C304
104Z
C303
104Z
R339
56K
R314
330
R311
330
R312
330
R309
330
R310
330
R307
330
R308
330
C305
104Z
R348
56K
R347
56K R346
56K
R345
56K
P303
9
7
8
6
4
5
3
1
2
10
P304
9
7
8
6
4
5
3
1
2
10
C412
10/16
C411
10/16
C431 47/16
+
C432 47/16
+
R434 0
R433 0
Q421
BD3814
1
2
3
4AGND1
5
6
7
8AGND2
9INSW
10 AGND3
11 INSR
12 AGND4
13 INSL
14 AGND5
15 INC
16 AGND6
17 INFR
18 AGND7
19 INFL
20 VEE
-+
-+
TREBLE
BASS
LOGIC
P305
9
7
8
6
4
5
3
1
2
10
C376
10/16
+
C377
10/16+
C356 224J
C357 472J
9
10 11 12 13 14 15 16 17 18
Q303
78L07
1O
2G
3
I
C353
220/16
+
C354
220/16
+
C351
104Z
P351A
13 12 11 10
9 8 7 6 5 4 3 2 1
P352A
20 19 18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
R336
56K
R335
56K
R340
56K C309
221J C310
221J
R303
330
R304
330
C301
104Z
6
4
5
3
1
2
P302
4
P2501A
1 2 3 4 5 6 7
C359 224J
C360 472J
C364 104Z
C382 330J
Q302
NJW1157
51 L1IN
52 R1IN
53 L2IN
54 R2IN
55 L3IN
56 R3IN
57 L4IN
58 R4IN
59 L5IN
60 R5IN
61 L6IN
62 R6IN
63 L7IN
64 R7IN
65 L8IN
66 R8IN
67 L9IN
68 R9IN
69 L10IN
70 R10IN
71 L11IN
72 R11IN
73 L12IN
74 R12IN
75 NC
76 DGND
77 DATA
78 CLOCK
79 LATCH
80 LAIN
81 RAIN
82 CAIN 83 LSAIN 84 RSAIN 85 LBAIN 86 RBAIN 87 SWAIN 88 LBIN 89 RBIN 90 CBIN 91 LSBIN 92 RSBIN 93 LBBIN 94 RBBIN 95 SWBIN 96 GND 97 GND 98 VSS2 99 VDD2
100 TCCAP
1
LOUT
2
ROUT
3
COUT
4
LSOUT
5
RSOUT
6
LBOUT
7
RBOUT
8
SWOUT
9
DC_L1
10
DC_L2
11
FIL_BL
12
FIL_TL
13
DC_R1
14
DC_R2
15
FIL_BR
16
FIL_TR
17
NC
18
NC
19
V+
20
V-
21
REC_A1L
22
REC_A1R
23
REC_A2L
24
REC_A2R
25
REC_A3L
26
REC_A3R
27
REC_B1L
28
REC_B1R
29
REC_B2L
30
REC_B2R
31
DCCAP_L
32
DCCAP_R
33
DCCAP_C
34
GND
35
GND
36
DCCAP_LS
37
DCCAP_RS
38
DCCAP_LB
39
DCCAP_RB
40
DCCAP_SW
41
DCL_OUT
42
DCL_IN
43
DCR_OUT
44
DCR_IN
45
FL+
46
FL-
47
FR+
48
FR-
49
VDD
50
VSS
C378
10/16 +
C421
10/16 +
C422
10/16
+
C423
10/16 +
C42410/16 + C427
10/16 +
C428
10/16
+
C425
10/16
+
C426
10/16
+
-7V
+7V
V4E
V4E
U1
A
1
2
3
4
5
BCD

TX-SR55
SCHEMATIC DIAGRAM 1
DAC_FR
DAC_FL
DAC_SBR
DAC_SBL
+12VA
-12VA
GND
SBR_VO
CT_VO
SL_VO
SR_VO
SBL_VO
+5VDSP
APOWER SPRLF SPRLCS SPRLSB Z2LPMUTD SBZ2MUTD FANH VPOWER SYSIN THERMAL FANCTR SPRLZ2 AMUTD PROTECT
SYSIN
+56S
TRG12V
+13S SEC1H
FL_PO FR_PO SBL_PO SBR_PO CT_PO SL_PO SR_PO
TRG12V
GND
+24V
-24V
+56S
DAC_CT
DAC_SL
DAC_SW
DAC_SR
MCT
MSL
MSR
MSW
Z2BDMUT
Z2BDDAT
Z2BDCLK
VPOWER
AMUTD
SBZ2MUTD
Z2LPMUTD
THERMAL SPRLCS PROTECT SPRLF VOLH SPRLSB SPRLZ2 SEC1H APOWER VOLH DSPBUSY VIDEO+5V VIDEO-5V +12VA -12VA
FL_VO
FR_VO
DSP Section
PURE AUDIO
SCH. 2
ZONE2
LINE/PREOUT
SCH. 2 DSP Section
RI
TO NAAF-8383 (SCH. 3) TO NAPS-8389 (SCH. 6)
TO NAPS-8389 (SCH. 6)
R403
270
R411
100
R404
270
R409
100
R402
270
R410
100
D902
1SS352
C908
104Z
R401
270
C906
104Z
D901
1SS352
C352
104Z
C389 221J
R385 47K
R386 1.2K
R387
15K
C388
10/16
+
R425
0
R412
100
R435 0
R436 0
R451
4.7k
R452
4.7k
2
Q910
79M05FA
3O2
I
1
G
R902
56
Q902
79M12HF
3O2
I
1
G
R908
47K
R903
0
Q901
78M12HF
3O
2G
1
I
Q402
RN1441
Q404
RN1441
Q406
RN1441
Q407
RN1441 Q408
RN1441
R480
0R479
0
C911
10/16
+
C912
10/16
+
C907
10/16
+
C909
10/16
+
C904
10/16
+
C905
10/16
+
R907
47K
Q908
RN2402
Q907
RN1402
C443
102J
C444
102J
C450
104Z
R350
330
R349
330
R498
100k
R428
100k
R427
100k
R407
270
R415
100
R408
270
R416
100
Q413
RN1441 Q414
RN1441
Q415
RN1441 Q416
RN1441
R405
270
R406
270
R414
100
R413
100
Q409
RN1441 Q410
RN1441
Q411
RN1441 Q412
RN1441
R426
0
Q421
BD3814
1
2
3
4
5
6
7
21
TNFR
22
TNFL
23
BNF1R
24
BNF2R
25
BNF1L
26
BNF2L
27
OUTFL
28
OUTFR
29
OUTC
30
OUTSL
31
OUTSR
32
OUTSW
33
AGND8
34
DGND
35
MUTE
36
DA
37
CL
38
AGND9
39
VCC
40
AGND10
+
+
TREBLE
BASS
LOGIC
E301
1
E302
1
E300
1 2 3 4
P422
4
2
1
3
R909
1K
R910
18K
R905
0
P6931B
11 10
9 8 7 6 5 4 3 2 1
R499
330
P424
JL9502B
1
2
3
4
5
6
7
C417 104J
C420 104J
C418 104J
C416 472J
C415 472J
P353A
1 2 3 4 5 6 7 8 9
10 11 12 13 14
3
C351
104Z
P354A
14 13 12 11 10
9 8 7 6 5 4 3 2 1
R388 10K
Q307:A
NJM4565M-D
6
5
4
7
8
C402
47/16
+
C403
47/16
+
C404
47/16
+
C405
47/16
+
C407
47/16
+
C406
47/16
+
C408
100/16
+
C401
47/16
+
Q401
RN1441
R417
22k
Q403
RN1441
R418
22k
Q405
RN1441
R419
22k
R420
22k
R421
22k
R422
22k
R423
22k
R424
22k
C439
4.7/50
+
C440
4.7/50
+
Q429
RN1441
R489
2.2K
R490
2.2K
R487
22K
R488
22K
R485
2.2K
R486
2.2K
Q427
RN1441
R460
0
R459 0
R461 0
R462 0
C419 104J
P308
1
2
3
4
5
6
7
8
9
10
11
12
Q901B
hs
Val
1
C902
22/35
+
C901
223Z
Q905
Q906
R901
12
R906
100 2W
C390 103J
Q903
78L05HF
1O
2G
3
I
Q911
78L05HF
1O
2G
3
I
Q904 2SA1726
R904
33
R913
33
Q909
2SA1726
C391
103J
A
1
2
3
4
5
BCD

TX-SR55
SCHEMATIC DIAGRAM 2
DSP section
A
1
2
3
4
5
BCD
GND
MSW
ADLT+
ADLT-
ADRT+
ADRT-
DAC_FL
DAC_FR
DAC_CT
DAC_SW
DAC_SL
DAC_SR
DAC_SBL
DAC_SBR
+12VA
RX6
FIL_FL
FIL_FR
FIL_CT
FIL_SR
FIL_SL
FIL_SW
FIL_SBL
FIL_SBR
MCT
MSR
MSL
+12VA
-12VA
-12VA
DAC_FL
DAC_FR
DAC_CT
DAC_SW
DAC_SL
DAC_SR
DAC_SBL
DAC_SBR
+5VDSP
+12VA
-12VA
RX1
RX0
DIRSDI DIGSDO DIRCS
TX
RX2
RX3
RX4
DIRRST DIGCLK DIRINT
ASP Section
Front OPT
SCH. 1
ASP Section
SCH. 1
NAAR-8365-1(2)
R573
10K
R613
22K
R621
1.5K
R565
10K
R581
1.5K
R589
22K
R629 1.5K
R605
22K
R598
22K
R606
22K
R630
1.5K
R566
10K
R582
1.5K
R622
1.5K
R574
10K
R614
22K
R575
10K
R615
22K
R623 1.5K
R567
10K
R583
1.5K
R591
22K
R631 1.5K
R599
22K
R607
22K
R600
22K
R608
22K
R632
1.5K
R568
10K
R584
1.5K
R624
1.5K
R576
10K
R616
22K
R577
10K
R617
22K
R625 1.5K
R569
10K
R585
1.5K
R633 1.5K
R601
22K
R609
22K
R602
22K
R610
22K
R634
1.5K
R570
10K
R586
1.5K
R626
1.5K
R578
10K
R618
22K
R579
10K
R619
22K
R627 1.5K
R571
10K
R587
1.5K
R635 1.5K
R603
22K
R611
22K
R604
22K
R612
22K
R572
10K
R588
1.5K
R628
1.5K
R580
10K
R620
22K
C886 330J
R557
180
R549180
R558180
R550
180
R559
180
R551 180
R560 4.7K
R5524.7K
R561
180
R553 180
R562 180
R554
180
R563
180
R555180
R564 180
R556
180
R541 10K
R533
10K R542
10K
R534
10K
R543
10K
R535
10K
R544
10K
R536
10K
R545
10K
R537
10K
R546
10K
R538
10K
R547
10K
R539
10K
R548
10K
R540
10K
R525
680
R517
680
R526
680
R518
680
R527
680
R519
680
R528
680
R520
680
R529
680
R521
680
R530
680
R522
680
R531
680
R523
680
R532
680
R524
680
R509
3.3K
R510
3.3K
R502
3.3K
R511
3.3K
R503
3.3K
R512
3.3K
R504
3.3K
R513
3.3K
R505
3.3K
R514
3.3K
R506
3.3K
R515
3.3K
R507
3.3K
R516
3.3K
R508
3.3K
R501
3.3K
R590
22K
R592
22K
R593
22K
R594
22K
R595
22K
R596
22K
R597
22K
R636
1.5K
C921
47/16
+
C863 10/16
+C864 10/16
+
L921
22K
R894
330
R896
0
R898
0
Q504:A
NJM4565M-D
7
4
5
6
8
Q504:B
NJM4565M-D
12
3
Q503:A
NJM4565M-D
7
4
5
6
8
Q503:B
NJM4565M-D
12
3
Q502:B
NJM4565M-D
12
3
Q501:A
NJM4565M-D
7
4
5
6
8
Q501:B
NJM4565M-D
12
3
C533
122J
C525
272J C526
272J
C534
122J
C527
272J
C535
122J
C528
272J
C536
122J
C529
272J
C537
122J
C530
272J
C538
122J
C531
272J
C539
122J
C532
272J
C540
122J
C861 10/16
+
Q514:A
NJM4565M-D
7
4
5
6
8
Q515:A
NJM4565M-D
7
4
5
6
8
Q515:B
NJM4565M-D
12
3
Q516:A
NJM4565M-D
7
4
5
6
8
Q512:A
NJM4565M-D
7
4
5
6
8
Q513:A
NJM4565M-D
7
4
5
6
8
Q514:B
NJM4565M-D
12
3
Q512:B
NJM4565M-D
12
3
Q513:B
NJM4565M-D
12
3
Q511:A
NJM4565M-D
7
4
5
6
8
Q509:A
NJM4565M-D
7
4
5
6
8
Q510:A
NJM4565M-D
7
4
5
6
8
Q511:B
NJM4565M-D
12
3
Q509:B
NJM4565M-D
12
3
Q510:B
NJM4565M-D
12
3
Q508:A
NJM4565M-D
7
4
5
6
8
Q506:A
NJM4565M-D
7
4
5
6
8
Q507:A
NJM4565M-D
7
4
5
6
8
Q505:A
NJM4565M-D
7
4
5
6
8
Q508:B
NJM4565M-D
12
3
Q506:B
NJM4565M-D
12
3
Q507:B
NJM4565M-D
12
3
Q505:B
NJM4565M-D
12
3
Q516:B
NJM4565M-D
12
3
C862 10/16
+
C878
100/6.3
+
C877
104Z
C876
473K
C875
222K
C879
104Z
R883 1K
R884 1K
R885 56
R886 56
C868
104Z
R878 56
R871
56 R872
56 R873
56
R875
56 R876
56
R870
56
R869
56
R887
104K
C880
330J
R888 330
R892
330 R891
330 R890
330 R889
330
C884 330J
C883 330J
C882 330J
C881 330J
R868 2.7K
C872
100/6.3
+
D862 1SS355 D867 1SS355
D868 1SS355
R864 56
R880 1K
R881 1K
R879 56
C889 104Z
R874
56
D866 1SS355
D864 1SS355
C869
104Z
C870 47/25
+
D865 1SS355
L862
022M
L864
022M
L865
R882 2.2K
L863
022M
Q861
CS42518
CS42518/28-CQ
17 VQ
18 FLT+
19 REFGND
20 AOUTB4-
21 AOUTB4+
22 AOUTA4+
23 AOUTA4-
24 VA
25 AGND1
26 AOUTB3-
27 AOUTB3+
28 AOUTA3+
29 AOUTA3-
30 AOUTB2-
31
AOUTB2+:31
32
AOUTA2+:32
33 AOUTA2-
34 AOUTB1- 35 AOUTB1+ 36 AOUTA1+ 37 AOUTA1- 38 MUTEC 39 LPFLT 40 AGND2 41 VARX 42 RXP7/GP7 43 RXP6/GP6 44 RXP5/GP5 45 RXP4/GP4 46 RXP3/GP3 47 RXP2/GP2 48 RXP1/GP1
49
49:RXP0
50
50:TXP
51
VD2
52
DGND2
53
VLS
54
SAI_SDOUT
55
RMCK
56
CX_SDOUT
57
ADCIN2
58
ADCIN1
59
OMCK
60
SAI_LRCK
61
SAI_SLCK
62
62:CX_SDIN4
63
63:CX_SDIN3
64
64:CX_SDIN2
1
CX_SDIN1
2
CX_SCLK
3
CX_LRCK
4
VD1
5
DGND1
6
VLC
7
CCLK/SCL
8
CDOUT/SAD
9
CDIN/AD1
10
CS/AD0
11
INT1
12
_RST
13
AINR-
14
AINR+
15
AINL+
16
AINL-
D861 1SS355
D863 1SS355
L861
022M
R866
3.9K R862 56
R863 56 R861 56
R867 330
R877 56
P
C
C871 104Z
C524
101J
C516
101J
C515
101J
C523
101J
C522
101J
C514
101J
C513
101J
C521
101J
C511
101J
C519
101J
C510
101J
C518
101J
C509
101J
C517
101J
R865
3.9K
C865 222J
C866 222J
C874
220/16
+
C867
220/16
+
C541
220/16
+C542
220/16+
C504
333J
Q502:A
NJM4565M-D
7
4
5
6
8
C543
153J C544
153J
U1

TX-SR55
SCHEMATIC DIAGRAM 2 DSP section
A
1
2
3
4
5
BCD
DACDA4
DACDA3
BT_WE BT_OE BT_CS SD_WE D0 D1 D2
SA15/EA18
SA14/EA17
SD13/EA16
SD12/EA15
SD10/EA13
SD9/EA12
SD8/EA11
A9
A8
A7
SD_CKE
A6
A5
A4
A0 A1 A2 A3 RAS CAS
SD_CKO
SD11/EA14
D1
D0
D2
D3
D4
D5
D6
D7
SD_WE
SD_LDQM
SD_CS
BA/EA19
A10
A0
A1
A2
A3
CAS
RAS
D3
D4
SD_LDQM
D5
D6
D7
SD_UDQM
SA15/EA18
SA14/EA17
SD13/EA16
SD12/EA15
SD11/EA14
SD10/EA13
SD9/EA12
SD8/EA11
A8
A7
SD_CKE
A6
A5
A4
SD_CS
BA/EA19
A10
DIGCLK_3V
DIGSDI_3V
DIGSDO_3V
DSPRST_3V
DIGCLK_3V
DIGSDO_3V
SRCBCK
SRCDO
DSPCLKIN
DACLRCK
ADSDO
DACBCK
DACDA2
SD_UDQM
DIGSDI_3V
DSPINT_3V
DSPINT_3V
DSPFCS_3V DSPFINT_3V
DSPCS_3V
DIGSDI
DSPFINT
DSPFINT_3V
DSPINT
GND
DACDA1
ADCRST_3V
DSPCS_3V
DSPRST_3V
DIGSDO_3V
DIGCLK_3V
DSPFCS_3V
ADCRST
DSPCS
DSPRST
DIGSDO
DIGCLK
DSPFCS
A9
SD_CKO
BT_WE
SD12/EA15
SD11/EA14
SD10/EA13
SD9/EA12
SD8/EA11
A9
A8
A7
A6
A5
A4
SD13/EA16
BT_OE
BT_CS
D0
D1
D2
D3
D4
D5
D6
D7
A10
A0
A1
A2
A3
SA15/EA18
+5VDSP
SA14/EA17
SRCLRCK
RX0
RX1
RX2
RX3
RX4
RX5
TX
RX6
GND
DSPBUSY_3V
DSPBUSY
DSPBUSY_3V
Front OPT
R263
10K
R26210K R261
10K R26010K R259 10K R25810K
R256
10K R25510K R254 10K
R25310K R252
10K
C216
101J
R27610K
C214
104Z
C286
104Z
R27510K
R27410K
C202 122J
R27310K
R27210K
R27110K
R27010K
C212
104Z
R269 10K
C217
47/16
+
C210
104Z
C218
47/16
+
C924
47/16
+
C923
47/16
+
C287
104Z
C285
104Z
C282
104Z
C283
104Z
C284
104Z
C206
104Z
C207
104Z
C209
104Z
C2191/50
+
R25710K C205
104Z
C215104Z
C213
104Z
R686 220
R685 220
R684 220
R683 220
R682220
R265 10K
R264 10K R266 10K
R214 220
R217220
R218220
R242 47
R241 47
R240 47
R239 47
R238 47
R237 47
R236 47
R235 47
R227 47
R224 47 R222 47 R221 47
R204220
C204
104Z
R201
3.3k
R2133.3k R212
3.3k
R208
220
R207
220
R210
3.3k R209 3.3k
R206
220
R203
220 R211
3.3k R202
3.3k
R226 47
R225 47 R228 47 R231 47
R232 47 R233 47
R251
10K
R281
10K
R249
330
R250 2.7K
R205220 R278
Q201
CS494003
109
AUDATA1
110
AUDATA0
111
CMPCLK,FSCLKN2
112
HDATA2,GPIO2
113
VSS3
114
VDD3
115
HDATA3,GPIO3
116
HDATA0,GPIO0
117 CMPREQ,FLRCLKN2
118 CMPDAT,FSDATAN2
119 FLRCLKN1
120 _WR,_DS,GPIO10
121 _RD,R/_W,GPIO11
122 PLLVSS
123 FILT2
124 FILT1
125 PLLVDD
126 XTALO
127 CLKIN,XTALI
128 CLKSEL
129 _CS,GPIO9
130 A0,GPIO13
131 FSDATAN1
132 VDD4
133 VSS4
134 FSCLKN1,STCCLK2
135 _SCS
136 SCDIN
137 VSS5
138 VDD5
139
A1,GPIO12
140
SCDOUT,SCDIO
141
HINBSY,GPIO8
142
SCCLK
143
UHS,_CS_OUT,GPIO17
144
_RESET
1UHS0,GPIO18 2UHS1,GPOI19 3_INTREQ 4FA1,FSCDIN 5GPOI20 6FA0,FSCCLK 7FSCDIO,FSCDOUT 8GPIO21 9FDAT7
10 VDD6 11 VSS6 12 FHS0,_FWR,_FDS 13 FSH1,_FRD,FR/_W 14 FDAT6 15 _FCS 16 _FINTREQ 17 FDBCK 18 FDAT5 19 FDAT4 20 VDD7 21 VSS7 22 FDAT3 23 FDBDA 24 FDAT2 25 DBDA 26 DBCK 27 FDAT1 28 TEST 29 FDAT0 30 _NV_WE,GPIO16 31 _NV_OE,GPIO15 32 _NV_CS,GPIO14 33 _SD_WE 34 SD_DATA0,EXTD0 35 SD_DATA1,EXTD1 36 SD_DATA2,EXTD2
37
SD_DATA3,EXTD3
38
SD_DATA4,EXTD4
39
SD_DQM0
40
SD_DATA5,EXTD5
41
VSSSD4
42
VDDSD4
43
SD_DATA6,EXTD6
44
SD_DATA7,EXTD7
45
SD_DQM1
46
SD_DATA15,EXTA18
47
SD_DATA14,EXTA17
48
NC5
49
SD_DATA13,EXTA16
50
VSSSD3
51
VDDSD3
52
SD_DATA12,EXTA15
53
SD_DATA11,EXTA14
54
SD_DATA10,EXTA13
55
SD_DATA9,EXTA11
56
SD_ADAT8,EXTA11
57
VSSSD2
58
VDDSD2
59
SD_CLK_OUT
60
SD_ADDR9,EXTA9
61
SD_CLK_IN
62
SD_ADDR8,EXTA8
63
SD_ADDR7,EXTA7
64
SD_CLK_EN
65
SD_ADDR6,EXTA6
66
SD_ADDR5,EXTA5
67
SD_ADDR4,EXTA4
68
_SD_CS
69
VSSSD1
70
VDDSD1
71
SD_BA,EXTA19
72
SD_ADDR10,EXTA10
73
SD_ADDR0,EXTA0
74
SD_ADDR1,EXTA1
75
SD_ADDR2,EXTA2
76
SD_ADDR3,EXTA3
77
_SD_RAS
78
_SD_CAS
79
SDATAN3,GPIO27
80
SDATAN2,GPIO26
81
SDATAN1,GPIO25
82
SDATAN0,GPIO24
83
NC4
84
NC3
85
LRCLKN,GPIO23
86
SCLKN,GPIO22
87
LRCLK1
88
NC2
89
NC1
90
VDD1
91
VSS1
92
AUDATA7,XMT958B,GPIO31
93
AUDATA6,GPIO30
94
AUDATA5,GPIO29
95
HDATA7,GPIO7
96
HDATA6,GPIO6
97
HDATA5,GPIO5
98
SCLK1
99
MCLK
100
VDD2
101
VSS2
102
AUDATA4,GPIO28
103
HDATA4,GPIO4
104
SCLK0
105
HDATA3,GPIO3
106
AUDATA3,XMT958A
107
AUDATA2
108
LRCLK0
109:
140:
:43
:66
Q202 IC42S16100
1VCC0
2DQ0
3DQ1
4GNDQ1
5DQ2
6DQ3
7VCCQ1
8DQ4
9DQ5
10 GNDQ2
11 DQ6
12 DQ7
13 VCCQ2
14 LDQM
15 _WE
16 _CAS
17 _RAS
18 _CS
19 A11
20 A10
21 A0
22 A1
23 A2
24 A3
25 VCC1 26
GND1
27
A4
28
A5
29
A6
30
A7
31
A8
32
A9
33
NC1
34
CKE
35
CLK
36
UDQM
37
NC2
38
VCCQ3
39
DQ8
40
DQ9
41
GNDQ3
42
DQ10
43
DQ11
44
VCCQ4
45
DQ12
46
DQ13
47
GNDQ4
48
DQ14
49
DQ15
50
GND2
L866
022M
L867
LM182
R691
220
R690
220
R689
220
R223 47
Q681
TC74VHC541FT
11 Y8
12 Y7
13 Y6
14 Y5
15 Y4
16 Y3
17 Y2
18 Y1
19 _G2
20 VCC 1
_G1
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
GND
C681
104Z
C682
104Z
C203
680J
R688220
L868
LM182
R234 47
C208 104Z
L211
LM182
R279 47
C292
104Z
R292 220
R291 220
C291
47/16
+
Q203
MX29LV040
17 A3
18 A2
19 A1
20 A0
21 DQ0
22 DQ1
23 DQ2
24 VSS
25 DQ3
26 DQ4
27 DQ5
28 DQ6
29 DQ7
30 _CE
31 A10
32 _OE 1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
7
_WE/A18
8
VCC
9
A18/VPP
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
R220 NC
R243
0
R244
0
104Z
LM182
R899 1M
Q862
TC7WU04FU
1
2
3
4GND 5
6
7
8
VD
PCB
X801
12.288MHz
1 3
2
JL7503B
3
2
1
Q922
MPD2925T
1I
2G
3
O
Q921
MPD2933T
1I
2G
3
O
R692 220
Q682
TC74HCT7007AF
8OUT4
9IN4
10 OUT5
11 IN5
12 OUT6
13 IN6
14 VCC 1
2
3
4
5
6
7
GND
R693
220
R230 47
L201
022M
L202
022M
C201
2.2M
+
R215 220
R219 3.3K
R277220
C211
104Z
R267 10K
R268 10K R229 10K
L203
022M
L205
022M
L204
022M
C281
47/16
+
P120B
12
11
10
9
8
7
6
5
4
3
2
1
220

TX-SR55
SCHEMATIC DIAGRAM 3
Driver section
P6011B
TO NAAF-8397 (SCH. 4)
(BUS-BAR)
P308C
TO NAAR-8365
(SCH. 1)
D5006
MTZJ5.6B
D5005
MTZJ5.6B
D5004
MTZJ5.6B
D5003
MTZJ5.6B
C5006
101K
C5096
101K
C5086
040C
C5005
101K
C5095
101K
C5085
040C
C5004
101K
C5094
101K
C5084
040C
C5003
101K
C5093
101K
C5083
040C
C5026
10/50
C5016
10/50
C5106
10/63
C5046
220/16
C5116
10/63
C5056
47/50
C5025
10/50
C5015
10/50
C5105
10/63
C5045
220/16
C5115
10/63
C5055
47/50
C5024
10/50
C5014
10/50
C5104
10/63
C5044
220/16
C5114
10/63
C5054
47/50
C5023
10/50
C5013
10/50
C5103
10/63
C5043
220/16
C5113
10/63
C5053
47/50
R5026
330
R5106
100K
R5116
1K
R5036
56K
R5176
120(1/4W)
R5166
120(1/4W)
R5006
1K
R5016
56K
R5136
18K
R5226 27K
R5046 2.2K
R5056
4.7K
R5096
100K
R5086
470
R5066
1.2K
R5196
10
(1/4W)
R5186
10
(1/4W)
R5025
330
R5105
100K
R5115
1K
R5035
56K
R5175
120(1/4W)
R5165
120(1/4W)
R5005
1K
R5015
56K
R5135
18K
R5225 27K
R5045 2.2K
R5055
4.7K
R5095
100K
R5085
470
R5065
1.2K
R5195
10
(1/4W)
R5185
10
(1/4W)
R5024
330
R5104
100K
R5114
1K
R5034
56K
R5174
120(1/4W)
R5164
120(1/4W)
R5004
1K
R5014
56K
R5134
18K
R5224 27K
R5044 2.2K
R5054
4.7K
R5094
100K
R5084
470
R5064
1.2K
R5194
10
(1/4W)
R5184
10
(1/4W)
R5023
330
R5103
100K
R5113
1K
R5033
56K
R5173
120(1/4W)
R5163
120(1/4W)
R5003
1K
R5013
56K
R5133
18K
R5223 27K
R5043 2.2K
R5053
4.7K
R5093
100K
R5083
470
R5063
1.2K
R5193
10
(1/4W)
R5183
10
(1/4W)
Q5036
Q5035
Q5034
Q5033
Q5046
Q5006 Q5016
Q5056
Q5045
Q5005 Q5015
Q5055
Q5044
Q5004 Q5014
Q5054
Q5043
Q5003 Q5013
Q5053
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
P6003A
NF
-B1
+B1
B+
B-
P6004A
NF
-B1
+B1
B+
B-
JL6005A
NF
-B1
+B1
B+
B-
JL6006A
NF
-B1
+B1
B+
B-
E
SBL
SBR
SR
SL
NAAF-8383
TO NAAF-8397(SCH. 4)TO NAAF-8397(SCH. 4)TO NAAF-8391(SCH. 6)TO NAAF-8391(SCH. 6)
U6
A
1
2
3
4
5
BCD

TX-SR55
SCHEMATIC DIAGRAM 3
Driver section
A
1
2
3
4
5
BCD
P308A TO NAAR-8365
(SCH. 1)
P6011B
TO NAAF-8397 (SCH. 4)
(BUS-BAR)
P308C
TO NAAR-8365
(SCH. 1)
D5000
MTZJ5.6B
D5001
MTZJ5.6B
D5002
MTZJ5.6B
C5000
101K
C5090
101K
C5080
040C
C5001
101K
C5091
101K
C5081
040C
C5002
101K
C5092
101K
C5082
040C
C5020
10/50
C5010
47/50
C5100
10/63
C5040
220/16
C5110
10/63
C5050
47/50
C5021
10/50
C5011
47/50
C5101
10/63
C5041
220/16
C5111
10/63
C5051
47/50
C5022
10/50
C5012
10/50
C5102
10/63
C5042
220/16
C5112
10/63
C5052
47/50
R5020
330
R5100
100K
R5110
1K
R5030
56K
R5170
120(1/4W)
R5160
120(1/4W)
R5000
1K
R5010
56K
R5130
22K R5200 22K
R5220 27K
R5040 2.2K
R5050
4.7K
R5090
100K
R5080
470
R5060
1.2K
R5190
10
(1/4W)
R5180
10
(1/4W)
R5021
330
R5101
100K
R5111
1K
R5031
56K
R5171
120(1/4W)
R5161
120(1/4W)
R5001
1K
R5011
56K
R5131
22K R5201 22K
R5221 27K
R5041 2.2K
R5051
4.7K
R5091
100K
R5081
470
R5061
1.2K
R5191
10
(1/4W)
R5181
10
(1/4W)
R5022
330
R5102
100K
R5112
1K
R5032
56K
R5172
120(1/4W)
R5162
120(1/4W)
R5002
1K
R5012
56K
R5132
18K
R5222 27K
R5042 2.2K
R5052
4.7K
R5092
100K
R5082
470
R5062
1.2K
R5192
10
(1/4W)
R5182
10
(1/4W)
Q5030
Q5031
Q5032
Q5040
Q5000 Q5010
Q5050
Q5041
Q5001 Q5011
Q5051
Q5042
Q5002 Q5012
Q5052
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
[-0.65V]
[0V]
[-52.2V]
[-1.1V]
[1.1V]
[52.5V]
[-0.1V]
[-47.5V]
[51.5V]
[-48.1V]
[-51.7V] [-53.0V]
[53.0V]
[52.0V]
P6002A
NF
-B1
+B1
B+
B-
P6001A
NF
-B1
+B1
B+
B-
P6000A
NF
-B1
+B1
B+
B-
E
SR
E
SL
E C
SBR
E
SBL
R E
L
C
R
L
TO NAAF-8397(SCH. 4)TO NAAF-8397(SCH. 4)TO NAAF-8397(SCH. 4)
SEMICONDUCTORS
NO. X=0,1,2 (0:L, 1:R, 2:C) X=3,4,5,6 (3:SL, 4:SR, 5:SBL, 6:SBR)
Q500X,Q501X 2SC1775A-E,F OR 2SC1845-E KTC3200-BL OR 2SC1775A-E,F OR 2SC1845-E
Q503X 2SA1360-Y,O KTA1024-Y,O OR 2SA949-Y,O
Q504X 2SC3423-Y,O KTC3206-Y,O OR 2SC2229-Y,O
Q505X KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F

TX-SR55
SCHEMATIC DIAGRAM 4 Power amplifier section
P6011A
(BUS BAR)
TO NAAF-8383
(SCH. 3)
P955
TO NAPS-8382
(SCH. 6)
P6906
C6903
104J
P931A
TO NAPS-8382
(SCH. 6)
P6000B
TO NAAF-8383
(SCH. 3)
N
F
-B
1
+
B
B
+
B
-
P6001B
TO NAAF-8383
(SCH. 3)
N
F
-B
1
+
B
B
+
B
-
P6002B
TO NAAF-8383
(SCH. 3)
N
F
-B
1
+
B
B
+
B
-
P6004B
TO NAAF-8383
(SCH. 3)
NF
-B1
+B1
B+
B-
P6003B
TO NAAF-8383
(SCH. 3)
NF
-B1
+B1
B+
B-
D6905
D6904
JL6952A
TO NAETC-8398 (SCH. 5)
J011
J010
J011A
J010A
P995CC
P995AA
TO NAETC-8398 (SCH. 5) P995BB
F6902
F6901
RL6902
RL6901
P6084
ID+
ID-
P6083
ID+
ID-
Q6044
Q6064
Q6043
Q6063
D6004
D6706
D6906
D6003
D6705
D6705,6706,6901,6902
RL1N40003
GP104003E
D6902 D6901
D6014 D6013
R6104
0.22 X2
(5W)
R6103
0.22 X2
(5W)
R6044
1K
R6043
1K
C6905
334J 100V
C6904
334J 100V
C6907
104J
C6906
104J
C6708
222J
C6233
473J
C6234
473J
C6054
103J
C6053
103J
C6901
12000/63
C6902
C6044
47/50
C6043
47/50
R6184
47K R6174 47K
R6902
1K
R6183
47K
R6233
8.2 (1W)
R6173
47K
R6234
8.2 (1W)
R6901
10
(1/2W)
R6034
1K
R6004
5.6K
R6014
3.9K
R6074
120
(1/4W)
R6054
3.9K
R6164
33K
R6154
12K
R6064 2.2
(1/4W) R6084
2.2
(1/4W)
R6094
2.2
(1/4W)
R6244
220K
R6144
22KR6204
100
R6033
1K
R6003
5.6K
R6013
3.9K
R6073
120
(1/4W)
R6053
3.9K
R6163
33K
R6153
12K
R6063 2.2
(1/4W) R6083
2.2
(1/4W)
R6093
2.2
(1/4W)
R6243
220K
R6143
22KR6203
100
Q6901
Q6014
Q6024
Q6034
Q6074
Q6054
Q6013
Q6023
Q6033
Q6073
Q6053
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V] [-1.1V]
[-53.0V]
[-0.6V]
[0.6V]
[53.0V]
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V] [-1.1V]
[-53.0V]
[-0.6V]
[0.6V]
[53.0V]
+10VSS
+10VS
MPUGND
MPUGND
POWER
SEMICONDUCTORS
NO. PARTS
Q6010-6016 2SC1740S-R,S
Q6020-6026 2SC1740S-R,S
Q6601-6604,Q6901 KTC3199-GR OR 2SC1740S-R,S OR 2SC2458-GR
Q6701,6702 KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F
Q6703 KTA1268-BL,GR OR 2SA992-E,F
Q6303,6304 KTA1267-GR OR 2SA933S-R,S
Q6501 2SC1845-GR
Q6070-6076 KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F
SEMICONDUCTORS
NO. CH-L(0) / R(1) / C(2) SL(3) / SR(4) / SBL(5) / SBR(6)
Q6030-36 2SC5171 2SC5171 OR KTD2061-Y
Q6040-46 2SA1930 2SA1930 OR KTB1369-Y
Q6050-56 2SC5242-R,O 2SC5242-R,O OR MN130S-O,Y,P
Q6060-66 2SA1962-R,O 2SA1962-R,O OR MP130S-O,Y,P
12A 250V
12A 250V
R
C
SR
LSL
NAAF-8397
12000/63
U16
A
1
2
3
4
5
BCD

TX-SR55
SCHEMATIC DIAGRAM 4 Power amplifier section
C6703
223Z
C6707
223Z
P6000B
TO
NAAF 8383
(SCH. 3)
NF
-B1
+B1
B+
B-
P6001B
TO
NAAF 8383
(SCH. 3)
NF
-B1
+B1
B+
B-
P6002B
TO
NAAF 8383
(SCH. 3)
NF
-B1
+B1
B+
B-
P6804A
TO NAETC-8400
(SCH. 5)
D6704
MTZJ5.1B
D6703
MTZJ5.1B
D6707
MTZJ5.1B
JL6803A
TO NAETC-8399
(SCH. 5)
SRSPE
SLSPE
SBRSPE
SBLSPE
SBLSPE
JL6802A
TO NAETC-8399
(SCH. 5)
JL6402A
TO NAETC-8402
(SCH. 5)
P6081
ID+
ID-
P6082
ID+
ID-
P6080
ID+
ID-
Q6703
Q6304 Q6303
Q6303,6304:
KTA1267-GR OR
2SA933-R,S
Q6041
Q6061
Q6042
Q6062
Q6040
Q6060
D6701
D6702
D6000
D6001
D6002
D6005
D6006
D6306
D6307
D6011D6012 D6010
R6101
0.22 X2
(5W)
R6102
0.22 X2
(5W)
R6100
0.22 X2
(5W)
R6041
1K
R6042
1K
R6040
1K
C6231
473J
C6235
473J
C6230
473J
C6232
473J
C6236
473J
C6051
103J
C6052
103J
C6050
103J
C6701
100/6.3
C6706
100/6.3
C6704
1/50
C6041
47/50
C6042
47/50
C6040
47/50
R6708
33K
R6702
10K
R6701
22K R6704
47K
R6709
5.6K
R6710
12K
R6706
220K
R6180
47K R6170 47K
R6181
47K
R6231
8.2 (1W)
R6171
47K
R6182
47K R6172 47K
R6175 47K
R6176 47K
R6185
47K
R6186
47K
R6634
1K
R6632
1K
R6631
1K
R6633
1K
R6230
8.2 (1W)
R6232
8.2 (1W)
R6236
8.2
(1W)
R6751
390
(1/2W)
R6750
390
(1/2W)
R6235
8.2
(1W)
R6309
470
R6306
10K
R6310
4.7K
R6307
470 R6308
4.7K
R6707 22K
R6605
10
(1/2W)
R6031
1K
R6001
5.6K
R6011
3.9K
R6071
120
(1/4W)
R6051
3.9K
R6161
33K
R6151
12K
R6061 2.2
(1/4W) R6081
2.2
(1/4W)
R6091
2.2
(1/4W)
R6241
220K
R6141
22KR6201
100
R6032
1K
R6002
5.6K
R6012
3.9K
R6072
120
(1/4W)
R6052
3.9K
R6162
33K
R6152
12K
R6062 2.2
(1/4W) R6082
2.2
(1/4W)
R6092
2.2
(1/4W)
R6242
220K
R6142
22KR6202
100
R6030
1K
R6000
5.6K
R6010
3.9K
R6070
120
(1/4W)
R6050
3.9K
R6160
33K
R6150
12K
R6060 2.2
(1/4W) R6080
2.2
(1/4W)
R6090
2.2
(1/4W)
R6240
220K
R6140
22KR6200
100
Q6702Q6701
Q6604 Q6602Q6601Q6603
Q6011
Q6021
Q6031
Q6071
Q6051
Q6012
Q6022
Q6032
Q6072
Q6052
Q6010
Q6020
Q6030
Q6070
Q6050
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V] [-1.1V]
[-53.0V]
[-0.6V]
[0.6V]
[53.0V]
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V] [-1.1V]
[-53.0V]
[-0.6V]
[0.6V]
[53.0V]
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V]
[-1.1V]
[-53.0V]
[-0.6V]
[0.6V]
[53.0V]
P6801A
TO NAETC-8400
(SCH. 5)
P6800A
TO NAETC-8400
(SCH. 5)
P6301
TH1 TH2 COM
JL6200A
TO NAAF-8391
(SCH. 5)
P6953A TO NAPS-8389
(SCH. 6)
+24V
+24V
TH2
TH1
+B1
-B1
E
SBRSP
SBLSP
IPRO
SBLSP
SBRSP
SLSP
SRSP
RSP
LSP
CSP
Z2RLD
SBRLD
FRLD
CSRLD
+24VR
HPL
HPR
E
+24V
S3GND
SPRLCS
SPRLF
SPRLSB
SPRLZ2
SEC1H
POWER
+10VS
+10VS MPUGND
VOLH
PRO
POWER THRM
A
1
2
3
4
5
BCD

TX-SR55
SCHEMATIC DIAGRAM 5
Power amplifier and Speaker terminal sections
A
1
2
3
4
5
BCD
JL6802B
TO NAAF-8397
(SCH. 4)
JL6805B JL6805A
P6803
ZONE2 L
ZONE2 R
P6802
SBL
SBR
SL
SR
RL6807
RL6805
RL6803
J6856
P6086
ID+
ID-
P6085
ID+
ID-
Q6046
Q6066
Q6045
Q6065
R6106
0.22 X2
(5W)
R6105
0.22 X2
(5W)
R6046
1K
R6045
1K
C6056
103J
C6055
103J
Q6016
Q6026
Q6036
Q6076
Q6056
Q6015
Q6025
Q6035
Q6075
Q6055
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V] [-1.1V]
[-53.0V]
[-0.6V]
[0.6V]
[53.0V]
[-0.3V]
[1.0V] [1.1V]
[0.6V]
[-0.6V]
[-0.4V] [-1.1V]
[-53.0V]
[-0.6V]
0.6V
[0.6V]
[53.0V]
R6036
1K
R6006
5.6K
R6016
3.9K
R6076
220
(1/4W)
R6056
3.9K
R6166
33K
R6156
12K
R6066 2.2
(1/4W) R6086
2.2
(1/4W)
R6096
2.2
(1/4W)
R6246
220K
R6146
22KR6206
100
R6035
1K
R6005
5.6K
R6015
3.9K
R6075
220
(1/4W)
R6055
3.9K
R6165
33K
R6155
12K
R6065 2.2
(1/4W) R6085
2.2
(1/4W)
R6095
2.2
(1/4W)
R6245
220K
R6145
22KR6205
100
D6016 D6015
D6807
D6805
D6803
C6807
103J
C6805 103J
C6803
103J
P6800B
TO NAAF-8397
(SCH. 4)
JL6005B
TO NAAF-8383
(SCH. 3)
NF
-B1
+B1
B+
B-
JL6006B
TO NAAF-8383
(SCH. 3)
NF
-B1
+B1
B+
B- C6046
47/50
C6045
47/50
JL6803B
TO NAAF-8397
(SCH. 4)
SBLSP
SBRSP
SLSP
SRSP RSP
LSP
CSP
Z2RLD SBRLD CSRLD Z2RLD SBRLD CSRLD
+24VR
SBLSPE SBRSPE
SLSPE SRSPE
+24VR
SBR
SBL
Refer to the list of SCH. 4 for semiconductors.
NAETC-8400
NAAF-8391
NAETC-8399
U14
U18

TX-SR55
SCHEMATIC DIAGRAM 5
Power amplifier and Speaker terminal sections
JL6805A
JL6402C
+24V
+24V
TH1
TH2
TO NAAF-8397
(SCH. 4)
L
R
JL6200B
TO NAAF-8397
(SCH. 4)
RL6600
RL6602
D6600
D6602
C6600
103J
C6602
103J
P6800B
TO NAAF-8397
(SCH. 4)
P6801B TO NAAF-8397
(SCH. 4)
P6804B
TO NAAF-8397
(SCH. 4)
R6380
PTFL04BF
471Q2N34B0
THERMAL SENS.
R6381
PTFL04BC
471Q2N34B0
THERMAL PROT.
C
+B1
-B1
E
SBRSP
SBLSP
IPRO
RSP
LSP
CSP
Z2RLD SBRLD CSRLD Z2RLD SBRLD
FRLD
CSRLD +24VR
+24VR
CSPE RSPE
LSPE
NAETC-8400 NAETC-8401
NAETC-8402
U19
U21
A
1
2
3
4
5
BCD