Onkyo TX-2100 Service manual
SERVICE MANUAL
SERVICE MANUAL
TX-2100
Ref. No. 3836
102004
STEREO RECEIVER
MODEL TX-2100
Black model
BMDD
120 V AC, 60 Hz
INPUT SELECTOR
TUNER PHONO CD
TUNER
PRESET
CD
SLEEP
MUTING
VOLUME
POWER
TAPE-1
TAPE-2
DECK-A DECK-B
GROUP
DISC
REMOTE CONTROLLER RC-330S
RC-330S
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.
SPECIFICATIONS
TX-2100
Amplifier Section
Power Output Front L/R
50 W + 50 W
(8ohm , 20 Hz-20 kHz, FTC)
Dynamic Power 105 W + 105 W (4 ohm)
70 W + 70 W (8 ohm)
THD (Total Harmonic Distortion)
0.08 % (Power Rated)
Damping Factor 60 (Front, 1 kHz, 8 ohm)
Input Sensitivity and Impedance
150 mV/50 kohm (LINE)
2.5 mV/50 kohm (PHONO MM)
Output Level and Impeadance
150 mV/2.2 kohm (REC OUT)
Phono Overload 120 mV (MM 1 kHz 0.5 %)
Frequency Response 10 Hz-100 kHz/+1 dB -3 dB
(TONE FLAT, CD, TAPE-1,
TAPE-2/MONITOR)
Tone Control ±10 dB, 50 Hz (BASS)
±10 dB, 20 kHz (TREBLE)
SN Ratio 100 dB (LINE ,IHF-A)
80 dB (PHONO, IHF-A)
Speaker Impedance 4 ohm
Tuner Section
FM
Tuning Frequency Range
87.5 MHz-108.0 MHz
Usable Sensitivity Stereo 17.2 dBf 2.0 µV(75 ohm IHF)
Mono 11.2 dBf 1.0 µV(75 ohm IHF)
S/N Ratio Stereo 70 dB (IHF-A)
Mono 76 dB (IHF-A)
THD Stereo 0.25 % (1kHz)
Mono 0.15 % (1kHz)
Frequency Response 30 Hz-15 kHz/±1.5 dB
Stereo Separation 45 dB ( 1kHz )
General
Power Supply AC 120 V, 60 Hz
Power Comsumption 180 W
Stand-by Power Comsumption
1.35 W
Dimensions(W x H x D)
17-1/8" x 5-7/8" x 12-11/16" inches
435 x 150 x 322 mm
Weight 16.3 lbs
7.4 kg
Analog Inputs PHONO, CD, TAPE-1, TAPE-2/
MONITOR
Analog Outputs TAPE-1, TAPE-2/MONI
Speaker Outputs 4(SP-A, SP-B)
Phones 1
Specifications and features are subject to change without notice.
AM
Tuning Frequency Range
Usable Sensitivity 30 µV
S/N Ratio 40 dB
THD 0.70%
530 kHz-1710 kHz
SERVICE PROCEDURES
1. Replacing the fuse
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
F901 252163 4A-UL/T-237,Fuse
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.
TX-2100
1.Press and hold down the TAPE 1 button, then press the
DIRECT TUNING button.
2.After "CLEAR" is displayed, the preset memory stored in the memory,
are initialized and will return to the factory setting.
3. Safety-check out
(Only U.S.A. model)
After correcting the original service problem, perform the
following safety check before releasing the set to the customer.
Connect the insulating-resistance tester between the plug of power
supply cord and screw on the back panel.
Specifications: 3.3Mohmr10% at 500V.
4. Memory Preservation
This unit does not require memory preservation batteries. A
built-in memory power back-up system preserv es the contents
of the memory during power failures and even when the unit is
unplugged. The unit must be plugged in order to char ge the
back-up system.
The memory preservation period after the unit has been
unplugged v aries depending on climate and placement of the
unit. On the average, memory contents are protected over a
period of a fe w weeks after the last time the unit has been
unplugged. This period is shorter when the unit is e xposed to a
highly humid climate.
TX-2100
EXPLODED VIEW
P901
1
A030
A301
2
A040
A
A301
U9
E801
F901
U7
A303
U5
A302
A041
A300
U11
A013
A023
BCDE
A024
U3
P102
A024
A021
Q522 Q524
A024
A020
A015
A024
Q523
Q521
A024
A002
U4
U6
A026
E801
D911
U8
U2
A016
U1
P711
A007
A202
A202
A004
A006
A201
A002
A202
A204
A203
A001
A024
A210
3
A205
A206
A207
4
T901
A035
A205
A206
A207
A018
A011
A013
A013
A013
A013
A011
A002
A010
A005
A011
A013
A352
A016
A211
A306
TX-2100
TX-2100
A
BLOCK DIAGRAM
1
TUNER
PACK
PHONO
2
CD
REC
TAPE 1
PB
Q301
EQ
AMP.
Q302
SELECTOR
SWITCH
RIGHT
Q302
SELECTOR
SWITCH
BCDE
R409,R415
VOLUME
BASS,TREBLE
R393
BALANCE
VOLUME
R410,R416
BASS,TREBLE
Q491
MUTE
SW
Q492
MUTE
SW
Q493
GATE
CIRCUIT
L-CH
POWER
AMP.
Q525
CURRENT
DET.
R-CH
POWER
AMP.
Q526
CURRENT
DET.
Q583
GATE
CIRCUIT
Q581,582
DC
DET.
RL592
Q592
SPEAKER B
RELAY SW
Q591
SPEAKER B
RELAY SW
HEADPHONE
+
L
+B
+B
-
+
R
-
SPEAKERS
+
L
-
+
R
-
SPEAKER B
SPEAKER A
REC
TAPE 2
PB
STB
DATA
CL
3
RI
IN/OUT
4
M
Q481
VOLUME
MOTOR DRIVER
Q701 MICROPROCESSOR
SYS IN 46
Q707
BUFFER
Q703
RESET
STANDBY/RCV
SYS OUT 41
Q702
FL TUBE
K0-K4
OPERATION
KEIES
MUTE
SP B
SP A
45 POWER
47 REMIN
PROTECT
RPM7138-H4
U701
REMOTE
SENSOR
Q921
Q923
Q922
Q924
CONST.
VOLTAGE
TO FL TUBE
Q951
POWER
RELAY SW
F901
THERMAL FUSE
RL901
P902
120V
60Hz
TX-2100
TX-2100
4
A
SCHEMATIC DIAGRAM 1
DISPLAY SECTION
1
NP
F1
F1
123456789
2
3
4
3G
2G
1G
NP
5G
4G
Q702
9G
8G
7G
6G
1011121314
Q705
2SC1740S
BCD
HNA-12MM49 OR 12-BT-102GK
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NPNPNP
NP
12G
11G
10G
15
16171819202122232425262728293031323334353637383940414243444546474849505152535455565758
R707 100K
Q706
2SC1740S
62
63
64
P11
P12
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P13
P10
P9
P8
P7
P6
P5
VLOAD
P4
P3
P2
P1
12G
11G
10G
9G
8G
5G
6G
7G
123456789
R706
100K
61
P14
4G
60
P15
3G
1K
R779 10K
R778 1K
58
59
P16
PROTECT
RFIN
R781
53
54
555657
SD
ST
Q701
MPD78044FGF-217-3B9
NC
PLL
DATA
CL
VDD
1G
2G
10
11121314151617181920212223
R768
R767
R769
R767 - R769 1K
R772 - R774 1K
STAND-BY
1K
1K
R782
51
52
VDD
S.TONE
STB
NC
R772
D709
R756
50
STBY
VOL-UP
R774
R773
R712
270
49
VOL-DN
SEL4110R
47
48
REMIN
RST
R725 NON
46
SYSIN
R755
AREA
45
POFF
AVSS
10
43
44
RDSSCK
RDSDATA
AREA
MODE2
NON
R727
R724 10K
RRRRRRRRRRR
41
42
R777
40
POWER
SPARL
SPBRL
F-MUT
T-MUT
VSS
XT2
XT1
AVREF
AVDD
K4
MODE1
24
R726
X2
X1
K0
K1
K2
K3
10
R723 NON
R758
39
R759
38
R789
37
R790
36
35
34
33
32
31
30
29
R729
28
R730
27
R731
26
R732
25
R729 - R732 4.7K
R718 - R721 3.3K
C705
103Z
47K
R702
R783 NON
1K
1K
R733
4.7K
R714
X701
2.2K
1K
1K
4.19MHz
R718
R715
10K
D711
R719
R720
R721
R717 47K
10K
D710
C711
P15
R
C724
103Z
D701
R701
100/6.3
P16
NP
R706
10K*12
L701
NCH-1452
100/6.3
100
C702
474
NP
C703
C701
0.01F
R722
3.3K
F2
F2
59
D70
CAUTION
NOTE
.
THE COMPONENTS
5
REPLACE ONLY
.
VOLTAGE (MEASURED WITH VOLTMETER) IS
.
ELECTROLYTIC CAPACITORS ()ARE IN F/WV.
.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF333-0.033uF
.
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IDENTIFIED
WITH PART
BY MARK
NUMBER SPECIFIED.
ARE CRITICAL FOR
DC VOLTAGE. (NO INPUT SIGNAL)
u
SAFETY.
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW 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
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
TX-2100
NP56
A
BCD
SCHEMATIC DIAGRAM 1
DISPLAY SECTION
NADIS-8371-1
C576
102K
C575
102K
L
U4
D721
D720
C750
102K
L
L704
2.2UH
HP-E
R7444.7KR7432.2KR7421.2K
S713
SP-A
R75212KR7514.7KR7502.2KR7491.2K
S721
DOWN
R76612KR7654.7KR760470 R7642.2KR7631.2KR762820R761680
7
S737
1
F2
F2
NP
575859
R706
2
3
10K*12
701
CH-1452
C703
100/6.3
C701
0.01F
C702
474
R722
3.3K
D704
Q703
DTC144ES
R703
Q707
DTA114ES
D702
471K
471K
471K
471K
471K
100
D705
C712
C713
C714
C715
C716
D706
R704
R711
POWER
CD
GROUP
SCAN
1
47K
L702,L703 NCH-1452
10/50
C706
100
D703
MTZJ9.1C
RI
101K
C717
220K
R785
MTZJ5.6B
S701
S707
R746470 R747680
S715
R753470
S723
S731
L703
C707 10/50
L702
C704
1/50
10K
R709
471K
PH
S708
0/10
S716
S724
2
S732
D712
R791
1K
D707
MTZJ5.6B
D708
C708
R740680R739470
MUT/MODE
470
AM
9
3
POWER
R710
S709
S717
D723
S733
D722
R741820
R748820
C709
100/6.3
FM
MEMORY
4
U701
PIC-37043TE2
S710
TAPE-1
S718
D.TUN
5
S734
S711
S719
S735
SP-B
UP
6
2.2UH
L706
HP-R
2.2UH
L
L705
HP-L
S712
S720
S736
4
NAETC-8373-1
P700
S722
TAPE-2
8
S738
P503
PHONES
MUT
+13
E
E
5.6V
FL-E
-30V
AC
AC
PLOT
VOLVOL+
HP-R
HP-E
HP-L
SP-A
SP-B
SD
STER
TMUT
PLL
CL
DATA
ST
E
13V
POW
RI
NC
RELAY
U6
NC
NC
NC
NC
NC
NC
NC
JL711A
TO NAAR-5864-5 P711B
P711A
JL711B
TO NAETC-8377-1
CAUTION
NOTE
.
THE COMPONENTS
5
REPLACE ONLY
.
VOLTAGE (MEASURED WITH VOLTMETER) IS
.
ELECTROLYTIC CAPACITORS ()ARE IN F/WV.
.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF333-0.033uF
.
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IDENTIFIED
WITH PART
BY MARK
NUMBER SPECIFIED.
ARE CRITICAL FOR
DC VOLTAGE. (NO INPUT SIGNAL)
u
SAFETY.
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW 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
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
TX-2100
0
A
V1
A
SCHEMATIC DIAGRAM 2
AMPLIFIER SECTION
NAAR-5864-5
PHONO
EQUALIZER
P304
R315
330
R316
330
R319
2.2K
R320
2.2K
R323
330
R324
330
R327
2.2K
R328
2.2K
R331
330
R332
330
R301
1K
R302
1K
R317
R318
1M
R321
R322
1M
R325
R326
1M
R329
1M
C342
R333
R334
1M
C301
C302
1M
1M
1M
1M
223Z
1M
1
GND
L
PHONO
2.5mV
200mV
TAPE
TAPE
PLAY
TAPE
TAPE
PLAY
REC
REC
R
L
CD
R
L
-1
R
P301
L
-1
R
L
-2
R
L
-2
R
P302
2
3
331K
331K
R330
C341
R303
R304
C304
223Z
C303
10/50
56K
56K
10/50
Q301(1/2) NJM4558D-X
0
C305
152K
C309
0
622J
R305
220K
390K
C307
100/6.3
1K
R307
1K
R308
R310
C308
390K
100/6.3
220K
R306
C310
622J
C306
R309
152K
R351
R352
R349
22K
5
6
2
3
8
4
R353
120K
10K
10K
R354
R312
120K
NJM4558D-X
Q301(2/2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
CL
0
7
182J
R311
39K
R313
100K
100K
R314
39K
C312
182J
1
Q302
TC9273N-010
VSS
PHONO
CD
T1 REC
T1 PLAY
V-1
V2 REC
V2 PLAY
TUNER
T1 REC
T2 PLAY
SEL
GND
CL
C313
10/50
C311
C314
10/50
VDD
STB
DATA
BCD
C315
10/50
C316
10/50
R643
8.2K
C407
10/50
R416
100K
C408
10/50
R415
100K
R641
100K
R431
4.7K
R432
4.7K
R417
C421
C422
R418
R409
100K
1K
R410
100K
153J
1K
BASSTREBLE
153J
(R642)
100K
R644
8.2K
Q402(1/2)
NJM2068L-D
C411
R411
2
1.2K
10/50
C433
3
153J
R413
100K
100K
C434
R414
153J
10/50
R412
1.2K
C412
VOLUME
U2
NAETC-5865-5
C423
4
8
223Z
Q4
OP
C426
223Z
C425
223Z
BALANCE
R391
1K
R392
R393
250K
Q401(2/2)
C401
10/50
R403
R404
C402
10/50
1K
P613A
8
R401
5
100
82K
D401-D404 1SS133 or 1SS270
Q401-Q402 NJM2068L-D
82K
R402
100
P613B
6
NJM2068L-D
R419
10K
C419
102J
C420
102J
R420
10K
2
3
MTR+
MTRE
L3
E
L2
E
R2
E
R3
4
330J
C405
C417
102J
C418
102J
C406 330J
OPAMP
Q401(1/2)
C648
223Z
C415
104J
C416
104J
7
R405
R406
1
68K
C413
104J
C414
104J
68K
R430
10K
R429
10K
R407
3.3K
R408
3.3K
C345
223Z
28
27
26
25
24
23
22
21
20
19
18
17
16
REO
DATA
R350
22K
4
5
CAUTION
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW 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
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
NOTE
.
THE COMPONENTS
REPLACE ONLY
.
VOLTAGE (MEASURED WITH VOLTMETER) IS
.
ELECTROLYTIC CAPACITORS ()ARE IN F/WV.
.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF
.
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IDENTIFIED
WITH PART
BY MARK
NUMBER SPECIFIED.
ARE CRITICAL FOR
DC VOLTAGE. (NO INPUT SIGNAL)
u
U8
SAFETY.
TO TUNER UNIT U003
G
CL
DT
CE
100K
R104
C102
100/16
MTZJ5.1B
D101
19.3
18.6
223Z
AC
C920
C921
AC
PROTECT
223Z
223Z
C928
D921
DOWN
D917 D918
D915
D916
C918
1000/35
C919
330/35
㨪
D915
RL1N4003
OR GP104003E
100/50
D923
D920
UP
HPR
HPE
HPL
SPA
SPB
TO NADIS-8371-1 P101
D921
100/35
SD
D919
C926
TMUT
NC
P102
RGL
ST
+12V
3.3/50
101K
R103
560
R10222K
(1/2W)
R101
MUTE
SD
TUMUT TUMUT
+12V +12V
TU-R TU-R
TU-L TU-L
PLL PLL
DATA DATA
22K
ST ST
SD SD
EE
EE
NC
NC
CL CL
FM
+5V
C101
C103
P101
NC
NC
P101
NAETC-8376-1
12.0
-12.0
I
O
G
C922
10/50
C923
10/50
G
I
O
-20.7
Q922
79M12HF
Q923
NJM78M56FA
5.6
R932
330K
-27.0
C932
C931
223Z
10/50
C930
Q924
MUT
223Z
2SA1015
+13
G
E
IO
D922
MTZJ27D
R931
3.3K
E
+5.6
C927
E
-VP
Q921
MPC78M12AHF
TX-2100
0
A
SCHEMATIC DIAGRAM 2
AMPLIFIER SECTION
1
Q402(1/2)
NJM2068L-D
4
R411
2
1.2K
33
3J
2
34
3J
R412
1.2K
R413
R414
3
100K
100K
8
C423
1
223Z
Q402(2/2)
OPAMP
C435
C436
101K
101K
R435
220K
223Z
C424
3
OLUME
Q491
RN1241-A
C443
2.2/50
RN1241-A
Q492
R436
2.2K
Q493
RN2202
MUT
Q481 TA7291S
GND
NC
OUT2
IN2
VCC
123456789
DOWN
C441
100/6.3
U1
VS
OUT1
R501
470
C501
VREF
47/50
R502
470
IN1
UP
R505
470
56K
C503
R503
47/50
R506
56K
C504
R504
MOTOR DRIVE
BCD
C502
OR 1SR139-100
RL1N4003
020C
56K
1.2K
470/6.3
C513
020C
56K
1.2K
470/6.3
C514
C595
R511
220/6.3
R526
C596
R512
220/6.3
R525
151K
(1/2W)
56
R527
47K
151K
(1/2W)
56
R528
47K
10K
10K
R529
2SC2229
R541
R530
R542
68
(1/2W)
39.839.3
Q505
2SA949
R517
R519
Q527
2SA949
-39.3
Q529
56
(1/2W)
68
(1/2W)
Q506
2SA949
R518
R520
Q528
2SA949
2SC2229
Q530
56
(1/2W)
R531
Q511
2SA949
18K
C519
R535
3.9K
102K
18K
R537
R539
R532
Q512
2SA949
18K
C520
R536
3.9K
102K
18K
R538
R540
1K
1K
R513
R515
39.3
C515
470/50
Q501
2SC1845
101K
C516
470/50
-39.8
R514
470
Q502
2SC1845
101K
2SC1845
-0.6
10K
R521
-23.9 -39.2
Q507
2SC1740S
Q5
270
R523
2SC1
1K
R516
2SC1845
10K
R522
Q508
2SC1740S
270
R524
Q510
2SC1740S-R
Q503
0
7
1K
Q504
9
40S-
C509
R509
R507
C507
R
C510
R510
R508
C508
68
(1/2W)
37.9
Q517
2SC5171
1.2
2K
R533
C521
Q515
2.2K
-1.2
Q519
2SA1930
Q513
2SC2229
-40.4
68
(1/2W)
RL1N4003
68
(1/2W)
Q518
2SC5171
2K
R534
C522
2.2K
Q516
2SC1740S-R
Q514
2SC2229
68
(1/2W)
D501
47/50
R581 82
2SC1740S-R
R585
(1/2W)
D502
OR 1SR139-100
47/50
82
R582
Q520
2SA1930
(1/2W)
VCT
2.2
(1/2W)
(1W)
VCT
ID
R583
2.2
(1W)
ID
R584
2.2
R586
2.2
(1/2W)
0.5
-0.5
P512
R545
R546
0.22*2
0.22*2
R563
(1/2W)
2.2
41.3
Q521
2SC5197
2SC1845
R553
3.3K
(5W)
C537
P511
Q523
2SA1940
-41.3
R564
2.2
OR GP104003E
Q522
2SC5197
Q526
R554
3.3K
(5W)
C538
Q524
2SA1940
OR GP104003E
R573
R572
R557
Q525
470
R555
223Z
(1/2W)
R558
2SC1845
470
R556
223Z
C581
10K
22K
2SA992
33K
L501
R547
R549
22
33K
R550
100/6.3
C582
Q583
0
22
L502
R548
22
RL592
SPEAKERS
RELAY
Q591
DTC123JS
BA
L
R
P501
RL592
RL591
RL592
RELAY
D591
D592
Q592
DTC123JS
SPB
HPL
HPR
8.2
(1W)
R559
R551
104J
C529
RL591
47K
R574
R575
C530
104J
8.2
(1W)
R552
RL591
SPA
R565
390
(1W)
R566
390
(1W)
47K
PROTECT
C583
10K
223Z
223Z
47K
R560
22
33K
R571
Q582
2SC1845
Q581
2SC1845
U2
TC-5865-5
D911
RBV-402
6800/50
C971
223Z
C915
C916
6800/50
C911
334J/100V
4
917 D918
915
D916
C921
C918
00/35
919
0/35
D915
RL1N4003
OR GP104003E
D923
223Z
D921
D919
C926
100/35
JL912A
JL913A
NAETC-5866-5
JL912B
PIN_BUBPIN_BUB
JL913B
5
SD
NC
V1
CL
HPL
SPA
SPB
TMUT
DIS-8371-1 P101
ST
IPM
PLL
REO
VV-1
DATA
NC
NC
NC
P711B
U3
R922
(1/2W)
1
R991
(1/2W)
1
P961
U9
NAETC-8377-1
R961
470
17
15
16
14
12
11
10
9
8
T901
NPT-1283D
THERMALFUSE
RELAY
RI
POW
NC
13V
E
NAETC-
3
7
JL711B
TO NADIS-8371-1
JL961B
8374-1
P912B
U7
P911B
JL711A
NAPS-8372-1
JL961A
13V
E
POW
RELAY
Q951
2SC1740S
U5
P912A
P911A
F901
4A/125V
RL901
1P5ADC12
D955
P902
C952
220/16
D951 D954
D952
C953
223Z
C901
103M
RL901
D951-954
D953
RL1N4003
OR GP104003E
C951
8
1
103Z
T902
NPT-1111D
R951
R901
8.2
AC-H
AC-G
5
4
3.3M
(1/2W)
P901A
AC120V,60HZ
P900
P901
GND
TX-2100
A
SCHEMATIC DIAGRAM 1
DISPLAY SECTION
1
2
3
4
BCDEFGH
NADIS-8371-1
NAETC-8373-1
U6
U4
HNA-12MM49 OR 12-BT-102GK
Q702
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NP
NPNPNP
NP
NP
F1
F1
123456789
4G
3G
2G
1G
7G
6G
5G
1011121314
Q705
2SC1740S
9G
8G
NP
12G
11G
10G
16171819202122232425262728293031323334353637383940414243444546474849505152535455565758
15
R707 100K
Q706
2SC1740S
R706
100K
62
63
64
P11
P12
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P13
P10
P9
P8
P7
P6
P5
VLOAD
P4
P3
P2
P1
12G
11G
10G
9G
8G
5G
6G
7G
123456789
61
P14
4G
60
P15
3G
1K
10K
R779
57
RFIN
R781
53
54
55
56
SD
ST
R778 1K
58
59
P16
PROTECT
Q701
MPD78044FGF-217-3B9
NC
PLL
DATA
CL
VDD
1G
2G
10
11121314151617181920212223
R768
R767
R769
R767 - R769 1K
R772 - R774 1K
STAND-BY
1K
1K
R782
51
52
VDD
S.TONE
STB
NC
R772
D709
R756
50
STBY
VOL-UP
R773
R712
270
49
VOL-DN
R774
SEL4110R
REMIN
RST
R725 NON
464748
SYSIN
R755
AREA
45
POFF
AVSS
10
43
44
RDSSCK
RDSDATA
AREA
MODE2
NON
R727
R724 10K
RRRRRRRRRRR
41
42
POWER
SPARL
SPBRL
F-MUT
T-MUT
VSS
XT2
XT1
AVREF
AVDD
K4
MODE1
24
R726
R723 NON
X2
X1
K0
K1
K2
K3
10
R777
40
R758
39
R759
38
R789
37
R790
36
35
34
33
32
31
30
29
R729
28
R730
27
R731
26
R732
25
R729 - R732 4.7K
R718 - R721 3.3K
C705
103Z
47K
R702
R783 NON
1K
1K
X701
R733
4.7K
2.2K
1K
1K
R714
4.19MHz
R718
R715
10K
D711
R719
R720
R721
R717 47K
10K
D710
C711
C724
103Z
100/6.3
R
NP
10K*12
L701
NCH-1452
D701
100
R701
R706
C703
100/6.3
C701
0.01F
C702
474
R722
3.3K
F2
F2
NP
59
P503
PHONES
MUT
+13
E
E
5.6V
FL-E
-30V
AC
AC
PLOT
VOLVOL+
HP-R
HP-E
HP-L
SP-A
SP-B
SD
STER
TMUT
PLL
CL
DATA
ST
E
13V
POW
RI
NC
RELAY
NC
NC
NC
NC
NC
NC
NC
JL711A
TO NAAR-5864-5 P711B
P711A
JL711B
TO NAETC-8377-1
D704
Q703
DTC144ES
R703
Q707
DTA114ES
D702
471K
471K
471K
471K
471K
100
D705
C712
C713
C714
C715
C716
R704
R711
D706
POWER
CD
GROUP
SCAN
1
L702,L703 NCH-1452
10/50
C706
100
D703
MTZJ9.1C
RI
101K
47K
C717
220K
R785
MTZJ5.6B
S701
S707
R746
470 R747680
S715
470
R753
S723
S731
C707
10K
PH
0/10
S724
2
L703
L702
R709
471K
C704
1/50
S708
S716
S732
D712
10/50
R791
1K
D707
MTZJ5.6B
D708
C708
R740680R739470
MUT/MODE
470
AM
9
3
POWER
R710
820
S709
S717
D723
S733
D722
R741
R748820
C709
100/6.3
FM
MEMORY
4
U701
PIC-37043TE2
S710
TAPE-1
S718
D.TUN
5
S734
S711
S719
S735
SP-B
UP
6
2.2UH
L706
HP-R
2.2UH
L
L705
HP-L
S712
S720
S736
C576
102K
C575
102K
L
D721
D720
C750
102K
L
L704
HP-E
R7444.7KR7432.2KR7421.2K
SP-A
DOWN
12KR7654.7KR760470 R7642.2KR7631.2KR762820R761680
7
2.2UH
S713
S721
S737
R75212KR7514.7KR7502.2KR7491.2K
R766
P700
TAPE-2
8
S722
S738
CAUTION
NOTE
.
THE COMPONENTS
5
REPLACE ONLY
.
VOLTAGE (MEASURED WITH VOLTMETER) IS
.
ELECTROLYTIC CAPACITORS ()ARE IN F/WV.
.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF333-0.033uF
.
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IDENTIFIED
WITH PART
BY MARK
NUMBER SPECIFIED.
ARE CRITICAL FOR
DC VOLTAGE. (NO INPUT SIGNAL)
u
SAFETY.
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW 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
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
TX-2100
A
SCHEMATIC DIAGRAM 2
AMPLIFIER SECTION
NAAR-5864-5
PHONO
GND
L
EQUALIZER
R301
1K
331K
C301
331K
C302
R302
R315
330
R316
330
R319
2.2K
R320
2.2K
R323
330
R324
330
R327
2.2K
R328
2.2K
R331
330
R332
330
1K
R317
R318
R321
R322
R325
R326
R329
C342
R333
R334
1M
1M
1M
1M
1M
1M
1M
R330
1M
223Z
1M
1M
P304
L
R
R
L
R
P301
L
R
L
R
L
R
P302
1
PHONO
2
3
2.5mV
200mV
TAPE
TAPE
PLAY
TAPE
TAPE
PLAY
REC
REC
CD
-1
-1
-2
-2
4
CAUTION
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
5
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW 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
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
C341
R303
R304
C304
223Z
C303
10/50
56K
56K
10/50
BCDEFGH
Q301(1/2) NJM4558D-X
0
8
5
6
C305
152K
C309
0
622J
R309
R305
220K
390K
C307
100/6.3
1K
R307
R351
1K
R308
R352
R310
C308
390K
100/6.3
220K
R306
C310
622J
2
C306
152K
3
R349
22K
NOTE
.
THE COMPONENTS
REPLACE ONLY
.
VOLTAGE (MEASURED WITH VOLTMETER) IS
.
ELECTROLYTIC CAPACITORS ()ARE IN F/WV.
.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF
.
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
4
R353
120K
10K
10K
R354
120K
NJM4558D-X
Q301(2/2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
CL
U8
0
7
R311
39K
R313
100K
100K
R314
R312
39K
1
Q302
TC9273N-010
VSS
PHONO
CD
T1 REC
T1 PLAY
V-1
V2 REC
V2 PLAY
TUNER
T1 REC
T2 PLAY
SEL
GND
CL
CE
IDENTIFIED
WITH PART
C313
10/50
C311
182J
C312
182J
C314
10/50
28
VDD
27
26
25
24
23
22
21
20
19
18
17
16
STB
DATA
DATA
TO TUNER UNIT U003
G
CL
DT
FM
100K
R104
C102
100/16
D101
MTZJ5.1B
BY MARK
NUMBER SPECIFIED.
REO
+5V
C101
C103
R350
101K
C315
C316
22K
+12V
3.3/50
10/50
10/50
R10222K
R103
560
(1/2W)
R101
ARE CRITICAL FOR
u
C345
223Z
P102
RGL
ST
SD
MUTE
ST ST
SD SD
TUMUT TUMUT
+12V +12V
TU-R TU-R
TU-L TU-L
PLL PLL
CL CL
DATA DATA
22K
EE
EE
NAETC-8376-1
SAFETY.
DC VOLTAGE. (NO INPUT SIGNAL)
OR 1SR139-100
RL1N4003
R525
C595
151K
020C
56K
1.2K
(1/2W)
R511
56
470/6.3
C513
R527
220/6.3
47K
R526
C596
020C
151K
56K
1.2K
(1/2W)
R512
56
470/6.3
C514
R528
220/6.3
NAETC-
3
U7
7
JL711B
TO NADIS-8371-1
47K
R529
10K
R541
R530
10K
R542
8374-1
JL711A
68
(1/2W)
39.839.3
Q505
2SA949
R517
R519
Q527
2SA949
Q529
2SC2229
56
(1/2W)
68
(1/2W)
Q506
2SA949
R518
R520
Q528
2SA949
2SC2229
Q530
56
(1/2W)
-39.3
18K
18K
18K
18K
P912B
P911B
R535
R536
R531
3.9K
R537
R539
R532
3.9K
R538
R540
1K
1K
R515
R513
U1
C407
10/50
R415
100K
R416
100K
C408
10/50
R643
8.2K
Q921
O
G
G
O
Q922
79M12HF
Q923
NJM78M56FA
G
223Z
2SA1015
E
+13
R431
4.7K
R432
4.7K
R641
100K
I
I
IO
D922
MTZJ27D
R931
3.3K
E
+5.6
R417
C421
C422
R418
E
R409
100K
1K
153J
1K
R410
100K
C927
-VP
BASSTREBLE
153J
-20.7
19.3
AC
R644
8.2K
18.6
223Z
(R642)
100K
C411
10/50
10/50
C412
NAETC-5865-5
C920
223Z
223Z
C921
C928
100/50
D921
AC
UP
HPR
DOWN
PROTECT
TO NADIS-8371-1 P101
Q402(1/2)
NJM2068L-D
R411
1.2K
C433
153J
R413
C434
R414
153J
R412
1.2K
VOLUME
D917 D918
D915
C918
1000/35
C919
330/35
D915
RL1N4003
OR GP104003E
D920
HPE
HPL
SPA
2
3
100K
100K
U2
D916
D921
D923
100/35
SD
SPB
4
8
C423
D919
C926
TMUT
1
223Z
Q402(2/2)
OPAMP
NC
V1
IPM
C921
C435
C436
VV-1
101K
101K
223Z
PLL
R505
470
C501
47/50
56K
C503
101K
R503
R501
470
Q491
RN1241-A
C443
2.2/50
RN1241-A
223Z
Q492
C424
R502
R435
220K
R436
2.2K
Q493
RN2202
MUT
Q481 TA7291S
GND
NC
OUT2
IN2
VCC
123456789
DOWN
C441
100/6.3
D911
RBV-402
6800/50
C915
C911
334J/100V
C916
6800/50
C971
223Z
CL
ST
REO
DATA
NC
NC
NC
P711B
470
C502
47/50
R506
470
56K
C504
101K
R504
MOTOR DRIVE
IN1
VREF
OUT1
VS
UP
NAETC-5866-5
JL912B
JL912A
PIN_BUBPIN_BUB
JL913B
JL913A
P961
BALANCE
Q401(2/2)
R392
R393
250K
1K
C401
10/50
C402
10/50
R403
R404
P613A
R391
1K
223Z
C426
223Z
C425
P101
P101
NC
NC
NC
NC
8
R401
5
100
82K
D401-D404 1SS133 or 1SS270
Q401-Q402 NJM2068L-D
82K
R402
100
P613B
6
NJM2068L-D
C405
R419
10K
C419
102J
C420
102J
R420
10K
C406 330J
2
3
MTR+
MTRE
L3
E
L2
E
R2
E
R3
C417
102J
C418
102J
4
C648
330J
C415
104J
C416
104J
OPAMP
Q401(1/2)
223Z
12.0
-12.0
5.6
R932
7
R405
68K
R406
1
C413
104J
C414
104J
68K
C922
C923
C932
330K
C931
-27.0
R407
3.3K
10K
R429
10K
R430
R408
3.3K
MPC78M12AHF
10/50
10/50
10/50
C930
223Z
Q924
MUT
39.3
C515
470/50
Q501
2SC1845
R521
C516
470/50
-39.8
270
R523
1K
R514
Q502
2SC1845
R522
270
R524
U3
17
15
16
14
R922
12
(1/2W)
1
11
R991
10
(1/2W)
1
9
8
R961
470
U9
NAETC-8377-1
C509
Q503
R509
2SC1845
R507
-0.6
10K
C507
-23.9 -39.2
Q507
2SC1740S
Q
5
0
9
2SC1
7
40S-
R
1K
R516
C510
Q504
R510
2SC1845
R508
10K
C508
Q508
2SC1740S
Q510
2SC1740S-R
T901
NPT-1283D
THERMALFUSE
RELAY
NC
RI
POW
13V
E
JL961B
68
(1/2W)
37.9
Q511
2SA949
Q517
2SC5171
1.2
2K
R533
C519
C521
102K
Q515
2.2K
-1.2
Q519
2SA1930
Q513
2SC2229
-40.4
68
(1/2W)
RL1N4003
68
(1/2W)
Q512
2SA949
Q518
2SC5171
2K
R534
C520
C522
102K
2.2K
Q516
2SC1740S-R
Q514
2SC2229
68
(1/2W)
JL961A
P912A
P911A
D501
(1/2W)
47/50
VCT
R581 82
2SC1740S-R
R585
2.2
(1/2W)
D502
OR 1SR139-100
(1/2W)
47/50
82
(1W)
R582
VCT
ID
Q520
2SA1930
NAPS-8372-1
13V
E
POW
RELAY
2SC1740S
U5
R583
2.2
(1W)
ID
R584
2.2
R586
2.2
(1/2W)
Q951
0.5
R545
0.22*2
-0.5
R546
0.22*2
P512
F901
4A/125V
R563
(1/2W)
2.2
41.3
Q521
2SC5197
2SC1845
R553
3.3K
(5W)
C537
P511
Q523
2SA1940
-41.3
R564
2.2
OR GP104003E
Q522
2SC5197
Q526
R554
3.3K
(5W)
C538
Q524
2SA1940
RL901
1P5ADC12
D955
P902
OR GP104003E
R573
R572
R557
Q525
470
R555
223Z
(1/2W)
R558
2SC1845
470
R556
223Z
C581
C952
220/16
C953
C901
103M
RL901
10K
223Z
C582
Q583
22K
2SA992
33K
0
L501
R547
22
R549
22
33K
L502
R548
22
R550
22
Q582
100/6.3
D951 D954
D952
D951-954
RL1N4003
223Z
OR GP104003E
33K
R571
2SC1845
Q581
2SC1845
D953
R560
47K
R559
47K
C951
8
1
R574
47K
R575
10K
103Z
T902
NPT-1111D
R551
C529
R951
R901
AC-H
AC-G
8.2
104J
8.2
3.3M
(1W)
PROTECT
5
4
C530
R552
C583
(1/2W)
P901A
P900
RL592
RL591
104J
8.2
R565
390
R566
390
(1W)
223Z
SPEAKERS
L
R
(1W)
RELAY
RL591
Q591
DTC123JS
SPA
(1W)
P901
AC120V,60HZ
GND
RL591
RL592
RELAY
D591
DTC123JS
SPB
HPL
HPR
BA
P501
RL592
D592
Q592
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