Onkyo TX-2100 User manual

TX-2100
SERVICE MANUAL
SERVICE MANUAL
STEREO RECEIVER
Black model
MODELTX-2100
120 V AC, 60 Hz
BMDD
Ref. No. 3836
102004
REMOTE CONTROLLER RC-330S
INPUT SELECTOR
DISC
SLEEP
POWER
MUTING
VOLUME
CD
TUNER
GROUP PRESET
TAPE-1
TAPE-2
TUNER PHONO CD
DECK-A DECK-B
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.

TX-2100
SPECIFICATIONS
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 )
AM
Tuning Frequency Range
530 kHz-1710 kHz
Usable Sensitivity 30 µV
S/N Ratio 40 dB
THD 0.70%
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 with-
out notice.

TX-2100
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.
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 charge the
back-up system.
The memory preservation period after the unit has been
unplugged varies depending on climate and placement of the
unit. On the average, memory contents are protected over a
period of a few weeks after the last time the unit has been
unplugged. This period is shorter when the unit is exposed to a
highly humid climate.

TX-2100
EXPLODEDVIEW
TX-2100
A201
A202
P711
P102
Q522 Q524
Q523Q521
P901
A002
A001
A024
A016
A352
A013
A005
A002
A006
A007
A002
A024
A020
A024
T901
E801
A040
A041
A023
A013
A024
A024
A024
A300
A302
A303
A301
A030
A301
A021
A026
E801
A004
A011
A010
A013
A013
A013
A013
A015
A011
A018
A205
A206
A207
A205
A206
A207 A035
A011
A306
A211
A210
A202
A016
A203
A202
A204
U4
U6
U8
U7
U5
U9
U11
U3
U1
U2
F901
D911
A
1
2
3
4
BCDE

TX-2100
BLOCK DIAGRAM
TX-2100
THERMAL FUSE
RPM7138-H4
TUNER
PACK
Q302
SELECTOR
SWITCH
RIGHT
L
R
SPEAKER B
L
R
SPEAKER A
SPEAKERS
HEADPHONE
STB
DATA
CL
U701
REMOTE
SENSOR
MUTE PROTECT
SP B
SP A
45 POWER
47 REMIN
OPERATION
KEIES
K0-K4
Q702
FL TUBE
Q707
BUFFER
SYS IN 46
SYS OUT 41
Q592
SPEAKER B
RELAY SW
+B
+B
Q591
SPEAKER B
RELAY SW
Q951
POWER
RELAY SW
RL901
F901
P902
120V
60Hz
CONST.
VOLTAGE
Q921
Q923
Q922
Q924 TO FL TUBE
Q481
VOLUME
MOTOR DRIVER
Q701 MICROPROCESSOR
RI
IN/OUT
VOLUME R409,R415
BASS,TREBLE
R410,R416
BASS,TREBLE
M
Q491
MUTE
SW
Q492
MUTE
SW
Q493
GATE
CIRCUIT
L-CH
POWER
AMP.
R-CH
POWER
AMP.
Q525
CURRENT
DET.
Q526
CURRENT
DET.
Q583
GATE
CIRCUIT
Q581,582
DC
DET.
A
1
2
3
4
BCDE
+
-
-
+
+
-
-
+
PHONO
CD
REC
PB
REC
PB
TAPE 1
TAPE 2
Q301
EQ
AMP. Q302
SELECTOR
SWITCH
R393
BALANCE
VOLUME
Q703
RESET
STANDBY/RCV
RL592

TX-2100
SCHEMATIC DIAGRAM 1
DISPLAY SECTION
D709
STAND-BY SEL4110R
C702
474
L701
NCH-1452
C711
100/6.3
C701
0.01F
C703
100/6.3
D711
D710
D701
D70
4
ATTENTION
VA
ET CALIBRATION COMME INDIQUE.
D'INCENDIE, REMPLACER UNIQUEMENT
PERMANENTE CONTRE LES RISQUES
AFIN D'ASSURER UNE PROTECTION
PAR UN FUSIBLE DE MEME TYPE E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
VA
AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION
AND RATING INDICATED.
ONLY WITH FUSE OF SAME TYPE
CAUTION
BY MARK
ARE CRITICAL FOR
SAFETY.
IDENTIFIED
NOTE
THE COMPONENTS
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.
.VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
.ELECTROLYTIC CAPACITORS ( )ARE IN F/WV.
.ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF333-0.033uF
u
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.
.
.
X701
STBY
RDSSCK
8G
9G
10G
11G
12G
P1
P2
P3
P4
VLOAD
P5
P6
P7
P8
P9
P10
P11 P12 P13 P14 P15 P16
PROTECT
RFIN
SD ST
VDD
S.TONE
REMIN SYSIN
POFF
RDSDATA
POWER
SPARL
SPBRL
F-MUT
T-MUT
X2
X1
VSS
XT2
XT1
AVREF
AVDD
K0
K1
K2
K3
K4 MODE1 AREA MODE2 AVSS RST VOL-DN VOL-UP STB NC NC PLL DATA CL VDD 1G 2G 3G 4G 5G 6G 7G
Q701
MPD78044FGF-217-3B9
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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
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 NP NP NP NP NP F2 F2 NP NP 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NP F1 F1
Q702 HNA-12MM49 OR 12-BT-102GK
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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
R778 1K
R724 10K
R723 NON
R702
47K
R783 NON
R725 NON
R722
3.3K
R717 47K
R733
4.7K
R714 10K
R715
10K
R756
1K
R712
270
R701
100
R779 10K
R706
100K
R707 100K
R767
R782 1K
R781 1K
R726
10
R727 NON
R755
10
R789 1K
R790 1K
R759 1K
R758 1K
R777 2.2K
R774
R773 R772
R769 R768
R721
R720
R719
R718
R729
R730
R731
R732
R R R R R R R R R R R R
Q706
2SC1740S
Q705
2SC1740S
C724
103Z
C705
103Z
AREA
4.19MHz
R767 - R769 1K
R772 - R774 1K
R729 - R732 4.7K
R718 - R721 3.3K
10K*12
R706
A
1
2
3
4
5
BCD

TX-2100
SCHEMATIC DIAGRAM 1
DISPLAY SECTION
P700
P711A
JL711A
C702
474
Q703
DTC144ES
L704
2.2UH
L
L705 2.2UH
L
L706 2.2UH
L
L
701
CH-1452
L702
L703
D706
MTZJ5.6B
D707
MTZJ5.6B
D703
MTZJ9.1C
R711
47K
R785
220K
Q707
DTA114ES
C706
10/50
C701
0.01F
C703
100/6.3
C704
1/50
C707 10/50
C709
100/6.3
D722
D723
D708
D720
D721
D704
D702
D712
D705
ATTENTION
VA
ET CALIBRATION COMME INDIQUE.
D'INCENDIE, REMPLACER UNIQUEMENT
PERMANENTE CONTRE LES RISQUES
AFIN D'ASSURER UNE PROTECTION
PAR UN FUSIBLE DE MEME TYPE E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
VA
AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION
AND RATING INDICATED.
ONLY WITH FUSE OF SAME TYPE
CAUTION
BY MARK
ARE CRITICAL FOR
SAFETY.
IDENTIFIED
NOTE
THE COMPONENTS
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.
.VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
.ELECTROLYTIC CAPACITORS ( )ARE IN F/WV.
.ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF333-0.033uF
u
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.
.
.
F2 F2 NP
NP56
57 58 59
P503
PHONES
S713 SP-A S711
TAPE-1
S712
SP-B
S722
TAPE-2
S721
DOWN
S719
D.TUN
S720
UP
S738
8
S701
POWER
S737
7
S735
5
S734
4
S733
3
S732
2
S731
1
S736
6
S710
FM
S718
MEMORY
S724
MUT/MODE
S723
SCAN
S717
9
S716
0/10 S715
GROUP
S709
AM
S708
PH
S707
CD
U701
R791
1K
R703 100
R722
3.3K
R709
10K
R704
100
R7444.7KR7432.2KR7421.2K
R75212KR7514.7KR7502.2KR7491.2K
R76612KR7654.7KR760470 R7642.2KR7631.2KR762820R761680
R741820
R748820
R753470
R746470 R747680
R740680R739470
R710
470
C717 101K
C712
471K
C575
102K
C576
102K
C750
102K
C716
471K
C715
471K
C714
471K
C713
471K
HP-R HP-L HP-E
POWER
RI
MUT
+13
E
E
5.6V
FL-E
-30V
AC
AC
PLOT
VOL-
VOL+
HP-R
HP-E
HP-L
SP-A
SP-B
SD
STER
TMUT
PLL
CL
DATA
ST
E
13V
POW
RI
NC
RELAY
JL711B
TO NAETC-8377-1 TO NAAR-5864-5 P711B
NC
NC
NC
NC
NC
NC
NC
NADIS-8371-1
L702,L703 NCH-1452
NAETC-8373-1
10K*12
R706
U6
U4
C708
471K
PIC-37043TE2
A
1
2
3
4
5
BCD

TX-2100
SCHEMATIC DIAGRAM 2
AMPLIFIER SECTION
P304
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
ATTENTION
VA ET CALIBRATION COMME INDIQUE.
D'INCENDIE, REMPLACER UNIQUEMENT
PERMANENTE CONTRE LES RISQUES
AFIN D'ASSURER UNE PROTECTION
PAR UN FUSIBLE DE MEME TYPE
VA AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION
AND RATING INDICATED.
ONLY WITH FUSE OF SAME TYPE
CAUTION
P102
P101
P101
Q4
0
OP
A
C422 153J
C414
104J
C416
104J
C420
102J C418 102J
C421 153J
C413
104J
C415
104J
C419
102J
C417
102J
C434
153J
C433
153J
C312
182J
C310
622J
C311
182J
C309
622J
Q922
79M12HF
GI
O
Q921
MPC78M12AHF
GI
O
Q923
NJM78M56FA
GIO
D101
MTZJ5.1B D922
MTZJ27D
P613A P613B
(R642)
100K
R641
100K
R393
250K
R410
100K
R416
100K
R409
100K
R415
100K
T2 PLAY
SEL
T1 REC
TUNER
V2 PLAY
V2 REC
V-1
CD
PHONO
T1 PLAY
T1 REC
VSS
CL
GND
DATA
STB
VDD
Q302
TC9273N-010
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
Q401(1/2)
OPAMP
3
21
Q301(2/2)
NJM4558D-X
3
21
Q401(2/2)
NJM2068L-D
58
64
7Q402(1/2)
NJM2068L-D
38
24
Q301(1/2) NJM4558D-X
58
64
7
P301
P302
Q924
2SA1015
D915
D917 D918
D916
D919
D923 D920
D921
R350
22K
R349
22K
R332
330
R302
1K
R402
100
R412
1.2K
R391
1K
R392
1K
R932
330K
R931
3.3K
R404
82K
R401
100
R403
82K
R408
3.3K
R414
100K
R407
3.3K
R413
100K
R411
1.2K
R301
1K
R334
1M
R333
1M
R331
330
R330
1M
R329
1M
R328
2.2K
R327
2.2K
R326
1M
R325
1M
R324
330
R323
330
R322
1M
R321
1M
R320
2.2K
R319
2.2K
R318
1M
R317
1M
R316
330
R315
330
R354
120K
R310
390K
R304
56K
R306
220K
R314
100K
R352
10K
R308
1K
R312
39K
R353
120K
R309
390K
R303
56K
R305
220K
R313
100K
R351
10K
R307
1K
R311
39K
C304
10/50
C402
10/50
C101
3.3/50
C102
100/16
C918
1000/35
C928
100/50
C923
10/50
C922
10/50
C919
330/35
C932
10/50
C926
100/35
C401
10/50
C408
10/50
C412
10/50
C407
10/50 C411
10/50
C316
10/50
C315
10/50
C314
10/50
C308
100/6.3
C313
10/50
C303
10/50
C307
100/6.3
C425 223Z C426 223Z
C345
223Z
C648
223Z
C103
101K
C921
223Z
C920
223Z
C927 223Z
C931 223Z C930
223Z
C406 330J
C405330J
C423 223Z
C342
223Z
C341
223Z
C302 331K
C306
152K
C301 331K
C305
152K
R432
4.7K
R431
4.7K
R430
10K
R643
8.2K R644
8.2K
R104 100K
R101 22K
R10222K
R103
560 (1/2W)
R418
1K
R406
68K
R420
10K
R417
1K
R42910K
R405
68K
R419
10K
MTR+
MTR-
CL
DATA
REO
E
L3
E
L2
E
R2
E
R3
ST ST
SD SD
TUMUT TUMUT
+12V +12V
TU-R TU-R
EE
TU-L TU-L
EE
PLL PLL
CL CL
DATA DATA
MUT +13
E E
+5.6
E
-VP
AC AC
PROTECT
DOWN
UP
HPR HPE HPL SPA SPB
SD
TMUT
NC
V1
NC
NC
NC
NC
TO NADIS-8371-1 P101
NAETC-5865-5
NAETC-8376-1
TO TUNER UNIT U003
-27.0
GND
BALANCE BASSTREBLE
ST SD
MUTE
R G L
+12V
+5V
FM
G
CL
DT
CE
Q401-Q402 NJM2068L-D
D401-D404 1SS133 or 1SS270
VOLUME
NAAR-5864-5
18.6
-12.0
5.6
-20.7
12.0 19.3
OR GP104003E
RL1N4003
D915㨪D921
-2
-2
PLAY
PLAY
TAPE
TAPE
-1
REC
REC
TAPE
-1
TAPE
R
0
0
0
EQUALIZER
PHONO
2.5mV
200mV
CD
PHONO
R
R
R
R
R
L
L
L
L
L
L
U2
U8
BY MARK
ARE CRITICAL FOR
SAFETY.
IDENTIFIED
NOTE
THE COMPONENTS
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.
.VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
.ELECTROLYTIC CAPACITORS ( )ARE IN F/WV.
.ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF
u
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.
.
.
A
1
2
3
4
5
BCD

TX-2100
SCHEMATIC DIAGRAM 2
AMPLIFIER SECTION
U1
JL711B
P961
C443
2.2/50
L501
L502
P900
GND
Q493
RN2202
P711B
P902
R901
3.3M
P901A
P901
AC120V,60HZ
RL901
RL901
1P5ADC12
T902
NPT-1111D
T901
NPT-1283D
THERMALFUSE
F901
4A/125V
D911
RBV-402
7
3
8
9
10
11
12
14
16
15
17
PIN_BUBPIN_BUB
JL961A
JL961B
JL912B JL912A
JL913B JL913A
Q402(2/2)
OPAMP
R534
2K R533
2K
RL592
RL592
RL591
RL591
RL591
RELAY
RL592
RELAY
C436 101K
4
34
5
3J
C435 101K
4
33
5
3J
C530 104J
C529
104J
C504
101K C503
101K
Q492
RN1241-A
Q491
RN1241-A
P501
P911B P912B
P911A P912A
Q592
DTC123JS
Q591
DTC123JS
IN1 VREF OUT1 VS GND NC OUT2 IN2 VCC
Q481 TA7291S
1 2 3 4 5 6 7 8 9
Q402(1/2)
NJM2068L-D
38
24
1
R546
0.22*2
(5W)
R545
0.22*2
(5W)
Q583
2SA992
Q524
2SA1940
Q520
2SA1930
Q506
2SA949 Q512
2SA949
Q528
2SA949
Q523
2SA1940
Q519
2SA1930
Q505
2SA949 Q511
2SA949
Q527
2SA949
Q582
2SC1845
Q581
2SC1845
Q951
2SC1740S
Q514
2SC2229
Q526
2SC1845
Q522
2SC5197
Q518
2SC5171
Q516
2SC1740S-R
Q530
2SC2229
Q510
2SC1740S-R
Q508
2SC1740S
Q504
2SC1845
Q502
2SC1845
Q513
2SC2229
Q525
2SC1845
Q521
2SC5197
Q517
2SC5171
Q515
2SC1740S-R
Q529
2SC2229
Q509
2SC1740S-R
Q507
2SC1740S
Q503
2SC1845
Q501
2SC1845
D952
D951 D954
D953
D
915
D
917 D918
D916
D955
D919
D923
D591 D592
D502
RL1N4003 OR 1SR139-100 OR GP104003E
D501
RL1N4003 OR 1SR139-100 OR GP104003E
R961
470
R991
1(1/2W)
R571
33K
R412
1.2K
R922
1(1/2W)
R414
100K R413
100K
R411
1.2K
R575
10K
R574
47K
R565
390(1W)
R566
390
(1W)
R559
47K
R560
47K
R573
10K
R572
22K
R552
8.2
(1W)
R551
8.2
(1W)
R582
82
(1W)
R564
2.2 (1/2W)
R563
2.2(1/2W)
R581 82
(1W)
C441
100/6.3
C581
100/6.3
C916
6800/50
C915 6800/50
C918
0
00/35
C952
220/16
C
919
3
0/35
C926
100/35
C501
47/50
C502
47/50
C522
47/50
C508
470/6.3
C514
220/6.3
C516
470/50
C515
470/50
C521
47/50
C507
470/6.3
C513
220/6.3
C520
102K
C424223Z
C971
223Z
C911
334J/100V
C901
103M
C953 223Z
C951 103Z
C423
223Z
C519
102K
C583 223Z
C582
223Z
C538
223Z
C596
151K
C510
020C
C537
223Z
C595
151K C509
020C
R550
22
R548
22
R549
22
R547
22
R505
470
R536 3.9K
R435
220K R436
2.2K
R951
8.2
(1/2W)
R535
3.9K
R501
470
R502
470
R584
2.2
(1/2W)
R586
2.2
(1/2W)
R554
3.3K
R558
33K
R556
470
R528
10K
R522
10K
R510
56K
R508
1.2K
R542
56
(1/2W)
R532
68
(1/2W)
R530
68
(1/2W)
R540
68
(1/2W)
R520
18K R518
18K
R538
2.2K
R512
56(1/2W) R526
47K
R524
270
R516
1K
R514
1K
R504
56K
R506
470
R583
2.2
(1/2W)
R585
2.2
(1/2W)
R553
3.3K
R557
33K
R555
470
R527
10K
R521
10K
R509
56K
R507
1.2K
R541
56
(1/2W)
R531
68
(1/2W)
R529
68
(1/2W)
R539
68
(1/2W)
R519
18K R517
18K
R537
2.2K
R511
56(1/2W) R525
47K
R523
270
R515
1K
R513
1K
R503
56K
SPA SPB
HPL
HPR
MUT
PROTECT
DOWN
UP
8 5
1 4
HPL SPA SPB
SD
TMUT
NC V1
IPM
VV-1
PLL
CL
DATA
REO
ST
NC NC
NC
JL711A
TO NADIS-8371-1
A
DIS-8371-1 P101
E
TC-5865-5
RELAY
POW
13V
E
RINC
RELAY
POW
E
13V
D951-954
NAETC-8377-1
NAETC-5866-5
-1.2
1.2
ID
VCT
ID
VCT
8374-1
NAPS-8372-1
-40.4
-41.3
-39.3
-23.9 -39.2
-39.8
-0.6
37.9
39.839.3
39.3 41.3
R
L
BA
SPEAKERS
V
OLUME MOTOR DRIVE
NAETC-
AC-G
AC-H
OR GP104003E
RL1N4003
OR GP104003E
RL1N4003
D915 D921
-0.5
0.5
U2 U3
U9
U7 U5
C921 223Z
P511
P512
0
A
1
2
3
4
5
BCD

TX-2100
SCHEMATIC DIAGRAM 1
DISPLAY SECTION
P700
P711A
D709
STAND-BY SEL4110R
JL711A
C702
474
Q703
DTC144ES
L704
2.2UH
L
L705 2.2UH
L
L706 2.2UH
L
L701
NCH-1452
L702
L703
D706
MTZJ5.6B
D707
MTZJ5.6B
D703
MTZJ9.1C
R711
47K
R785
220K
Q707
DTA114ES
C706
10/50
C711
100/6.3
C701
0.01F
C703
100/6.3
C704
1/50
C707 10/50
C709
100/6.3
D722
D723
D708
D711
D710
D720
D721
D701
D704
D702
D712
D705
ATTENTION
VA
ET CALIBRATION COMME INDIQUE.
D'INCENDIE, REMPLACER UNIQUEMENT
PERMANENTE CONTRE LES RISQUES
AFIN D'ASSURER UNE PROTECTION
PAR UN FUSIBLE DE MEME TYPE E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
VA
AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION
AND RATING INDICATED.
ONLY WITH FUSE OF SAME TYPE
CAUTION
BY MARK
ARE CRITICAL FOR
SAFETY.
IDENTIFIED
NOTE
THE COMPONENTS
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.
.VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
.ELECTROLYTIC CAPACITORS ( )ARE IN F/WV.
.ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF333-0.033uF
u
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.
.
.
X701
STBY
RDSSCK
8G
9G
10G
11G
12G
P1
P2
P3
P4
VLOAD
P5
P6
P7
P8
P9
P10
P11 P12 P13 P14 P15 P16
PROTECT
RFIN
SD ST
VDD
S.TONE
REMIN SYSIN
POFF
RDSDATA
POWER
SPARL
SPBRL
F-MUT
T-MUT
X2
X1
VSS
XT2
XT1
AVREF
AVDD
K0
K1
K2
K3
K4 MODE1 AREA MODE2 AVSS RST VOL-DN VOL-UP STB NC NC PLL DATA CL VDD 1G 2G 3G 4G 5G 6G 7G
Q701
MPD78044FGF-217-3B9
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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
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 NP NP NP NP NP F2 F2 NP NP 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NP F1 F1
Q702 HNA-12MM49 OR 12-BT-102GK
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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
P503
PHONES
S713 SP-A S711
TAPE-1
S712
SP-B
S722
TAPE-2
S721
DOWN
S719
D.TUN
S720
UP
S738
8
S701
POWER
S737
7
S735
5
S734
4
S733
3
S732
2
S731
1
S736
6
S710
FM
S718
MEMORY
S724
MUT/MODE
S723
SCAN
S717
9
S716
0/10 S715
GROUP
S709
AM
S708
PH
S707
CD
U701
R791
1K
R703 100
R778 1K
R724 10K
R723 NON
R702
47K
R783 NON
R725 NON
R722
3.3K
R717 47K
R733
4.7K
R714 10K
R715
10K
R756
1K
R712
270
R709
10K
R701
100
R779 10K
R704
100
R7444.7KR7432.2KR7421.2K
R75212KR7514.7KR7502.2KR7491.2K
R766
12KR7654.7KR760470 R7642.2KR7631.2KR762820R761680
R741
820
R748820
R753
470
R746
470 R747680
R740680R739470
R710
470
R706
100K
R707 100K
R767
R782 1K
R781 1K
R726
10
R727 NON
R755
10
R789 1K
R790 1K
R759 1K
R758 1K
R777 2.2K
R774
R773 R772
R769 R768
R721
R720
R719
R718
R729
R730
R731
R732
R R R R R R R R R R R R
Q706
2SC1740S
Q705
2SC1740S
C717 101K
C712
471K
C724
103Z
C575
102K
C576
102K
C750
102K
C705
103Z
C716
471K
C715
471K
C714
471K
C713
471K
HP-R HP-L HP-E
POWER
RI
MUT
+13
E
E
5.6V
FL-E
-30V
AC
AC
PLOT
VOL-
VOL+
HP-R
HP-E
HP-L
SP-A
SP-B
SD
STER
TMUT
PLL
CL
DATA
ST
AREA
E
13V
POW
RI
NC
RELAY
JL711B
TO NAETC-8377-1 TO NAAR-5864-5 P711B
NC
NC
NC
NC
NC
NC
NC
NADIS-8371-1
4.19MHz
R767 - R769 1K
R772 - R774 1K
L702,L703 NCH-1452
R729 - R732 4.7K
R718 - R721 3.3K
NAETC-8373-1
10K*12
R706
U6
U4
C708
471K
PIC-37043TE2
A
1
2
3
4
5
BCDEFGH

TX-2100
SCHEMATIC DIAGRAM 2
AMPLIFIER SECTION
U1
JL711B
P961
C443
2.2/50
L501
L502
P900
GND
P304
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
ATTENTION
VA ET CALIBRATION COMME INDIQUE.
D'INCENDIE, REMPLACER UNIQUEMENT
PERMANENTE CONTRE LES RISQUES
AFIN D'ASSURER UNE PROTECTION
PAR UN FUSIBLE DE MEME TYPE
VA AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION
AND RATING INDICATED.
ONLY WITH FUSE OF SAME TYPE
CAUTION
Q493
RN2202
P102
P711B
P101
P101
P902
R901
3.3M
P901A
P901
AC120V,60HZ
RL901
RL901
1P5ADC12
T902
NPT-1111D
T901
NPT-1283D
THERMALFUSE
F901
4A/125V
D911
RBV-402
7
3
8
9
10
11
12
14
16
15
17
PIN_BUBPIN_BUB
JL961A
JL961B
JL912B JL912A
JL913B JL913A
Q402(2/2)
OPAMP
C422 153J
C414
104J
C416
104J
C420
102J C418 102J
C421 153J
C413
104J
C415
104J
C419
102J
C417
102J
R534
2K R533
2K
RL592
RL592
RL591
RL591
RL591
RELAY
RL592
RELAY
C436 101K
C434
153J
C435 101K
C433
153J
C530 104J
C529 104J
C504 101K C503
101K
C312
182J
C310
622J
C311
182J
C309
622J
Q492
RN1241-A
Q491
RN1241-A
P501
Q922
79M12HF
GI
O
Q921
MPC78M12AHF
GI
O
Q923
NJM78M56FA
GIO
D101
MTZJ5.1B D922
MTZJ27D
P911B P912B
P911A P912A
Q592
DTC123JS
Q591
DTC123JS
IN1 VREF OUT1 VS GND NC OUT2 IN2 VCC
Q481 TA7291S
1 2 3 4 5 6 7 8 9
P613A P613B
(R642)
100K
R641
100K
R393
250K
R410
100K
R416
100K
R409
100K
R415
100K
T2 PLAY
SEL
T1 REC
TUNER
V2 PLAY
V2 REC
V-1
CD
PHONO
T1 PLAY
T1 REC
VSS
CL
GND
DATA
STB
VDD
Q302
TC9273N-010
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
Q401(1/2)
OPAMP
3
21
Q301(2/2)
NJM4558D-X
3
21
Q401(2/2)
NJM2068L-D
58
64
7Q402(1/2)
NJM2068L-D
38
24
1
Q301(1/2) NJM4558D-X
58
64
7
P301
P302
R546
0.22*2
(5W)
R545
0.22*2
(5W)
Q924
2SA1015
Q583
2SA992
Q524
2SA1940
Q520
2SA1930
Q506
2SA949 Q512
2SA949
Q528
2SA949
Q523
2SA1940
Q519
2SA1930
Q505
2SA949 Q511
2SA949
Q527
2SA949
Q582
2SC1845
Q581
2SC1845
Q951
2SC1740S
Q514
2SC2229
Q526
2SC1845
Q522
2SC5197
Q518
2SC5171
Q516
2SC1740S-R
Q530
2SC2229
Q510
2SC1740S-R
Q508
2SC1740S
Q504
2SC1845
Q502
2SC1845
Q513
2SC2229
Q525
2SC1845
Q521
2SC5197
Q517
2SC5171
Q515
2SC1740S-R
Q529
2SC2229
Q509
2SC1740S-R
Q507
2SC1740S
Q503
2SC1845
Q501
2SC1845
D952
D951 D954
D953
D915
D917 D918
D916
D955
D919
D923 D920
D921
D591 D592
D502
RL1N4003 OR 1SR139-100 OR GP104003E
D501
RL1N4003 OR 1SR139-100 OR GP104003E
R350
22K
R349
22K
R332
330
R961
470
R991
1(1/2W)
R302
1K
R571
33K
R402
100
R412
1.2K
R391
1K
R922
1(1/2W)
R392
1K
R932
330K
R931
3.3K
R404
82K
R401
100
R403
82K
R408
3.3K
R414
100K
R407
3.3K
R413
100K
R411
1.2K
R301
1K
R575
10K
R574
47K
R565
390(1W)
R566
390
(1W)
R559
47K
R560
47K
R573
10K
R572
22K
R552
8.2
(1W)
R551
8.2
(1W)
R582
82
(1W)
R564
2.2 (1/2W)
R563
2.2(1/2W)
R581 82
(1W)
R334
1M
R333
1M
R331
330
R330
1M
R329
1M
R328
2.2K
R327
2.2K
R326
1M
R325
1M
R324
330
R323
330
R322
1M
R321
1M
R320
2.2K
R319
2.2K
R318
1M
R317
1M
R316
330
R315
330
R354
120K
R310
390K
R304
56K
R306
220K
R314
100K
R352
10K
R308
1K
R312
39K
R353
120K
R309
390K
R303
56K
R305
220K
R313
100K
R351
10K
R307
1K
R311
39K
C304
10/50
C402
10/50
C441
100/6.3
C581
100/6.3
C101
3.3/50
C102
100/16
C916
6800/50
C915 6800/50
C918
1000/35
C952
220/16
C928
100/50
C923
10/50
C922
10/50
C919
330/35
C932
10/50
C926
100/35
C401
10/50
C408
10/50
C412
10/50
C407
10/50 C411
10/50
C501
47/50
C502
47/50
C316
10/50
C315
10/50
C522
47/50
C508
470/6.3
C514
220/6.3
C516
470/50
C515
470/50
C521
47/50
C507
470/6.3
C513
220/6.3
C314
10/50
C308
100/6.3
C313
10/50
C303
10/50
C307
100/6.3
C425
223Z C426 223Z
C520
102K
C345 223Z
C424223Z
C648
223Z
C103
101K
C971
223Z
C911
334J/100V
C901
103M
C953 223Z
C951 103Z
C921
223Z
C920
223Z
C927 223Z
C931 223Z C930
223Z
C406 330J
C405330J
C423 223Z
C519
102K
C583 223Z
C582
223Z
C538
223Z
C596
151K
C510
020C
C537
223Z
C595
151K C509
020C
C342
223Z
C341
223Z
C302
331K
C306
152K
C301
331K
C305
152K
R550
22
R548
22
R549
22
R547
22
R505
470
R432
4.7K
R431
4.7K
R430
10K
R536
3.9K
R435
220K R436
2.2K
R643
8.2K R644
8.2K
R104 100K
R101 22K
R10222K
R103
560 (1/2W)
R951
8.2
(1/2W)
R418
1K
R406
68K
R420
10K
R417
1K
R42910K
R405
68K
R419
10K
R535 3.9K
R501
470
R502
470
R584
2.2
(1/2W)
R586
2.2
(1/2W)
R554
3.3K
R558
33K
R556
470
R528
10K
R522
10K
R510
56K
R508
1.2K
R542
56
(1/2W)
R532
68
(1/2W)
R530
68
(1/2W)
R540
68
(1/2W)
R520
18K R518
18K
R538
2.2K
R512
56(1/2W) R526
47K
R524
270
R516
1K
R514
1K
R504
56K
R506
470
R583
2.2
(1/2W)
R585
2.2
(1/2W)
R553
3.3K
R557
33K
R555
470
R527
10K
R521
10K
R509
56K
R507
1.2K
R541
56
(1/2W)
R531
68
(1/2W)
R529
68
(1/2W)
R539
68
(1/2W)
R519
18K R517
18K
R537 2.2K
R511
56(1/2W) R525
47K
R523
270
R515
1K
R513
1K
R503
56K
SPA SPB
HPL
HPR
MUT
PROTECT
MTR+
DOWN
MTR-
CL
DATA
REO
UP
E
L3
E
L2
E
R2
E
R3
8 5
ST ST
SD SD
TUMUT TUMUT
+12V +12V
1 4
TU-R TU-R
EE
TU-L TU-L
EE
PLL PLL
CL CL
DATA DATA
MUT +13
E E
+5.6
E
-VP
AC AC
PROTECT
DOWN
UP
HPR HPE HPL SPA SPB
SD
TMUT
NC V1
IPM
VV-1
PLL
CL
DATA
REO
ST
NC NC
NC
NC
NC
NC
NC
JL711A
TO NADIS-8371-1
TO NADIS-8371-1 P101
NAETC-5865-5
RELAY
POW
13V
E
RINC
RELAY
POW
E
13V
D951-954
NAETC-8377-1
NAETC-5866-5
-1.2
1.2
NAETC-8376-1
TO TUNER UNIT U003
-27.0
GND
BALANCE BASSTREBLE
ST SD
MUTE
R G L
+12V
+5V
FM
G
CL
DT
CE
Q401-Q402 NJM2068L-D
D401-D404 1SS133 or 1SS270
ID
VCT
ID
VCT
8374-1
NAPS-8372-1
-40.4
-41.3
-39.3
-23.9 -39.2
-39.8
-0.6
37.9
39.839.3
39.3 41.3
R
L
BA
SPEAKERS
VOLUME MOTOR DRIVE
NAAR-5864-5
NAETC-
AC-G
AC-H
OR GP104003E
RL1N4003
18.6
-12.0
5.6
-20.7
12.0 19.3
OR GP104003E
RL1N4003
D915 D921
-2
-2
PLAY
PLAY
TAPE
TAPE
-1
REC
REC
TAPE
-1
TAPE
R
-0.5
0.5
0
0
0
EQUALIZER
PHONO
2.5mV
200mV
CD
PHONO
R
R
R
R
R
L
L
L
L
L
L
U2
U8
U3
U9
U7 U5
C921 223Z
P511
P512
0
A
1
2
3
4
5
BCDEFGH
BY MARK
ARE CRITICAL FOR
SAFETY.
IDENTIFIED
NOTE
THE COMPONENTS
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.
.VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
.ELECTROLYTIC CAPACITORS ( )ARE IN F/WV.
.ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030-3pF 330-33pF 331-330pF
u
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.
.
.

TX-2100
WIRINGVIEW
P911
P912
P901A
NAPS-8372
E
PSW
+12V
POW
P961A
AC-G
AC-H
JL961b
JL711b
NAETC-8377
P101
NCETC-8376
P102
P911a
P913a
P912a
NAETC-8374 7531
JL912b
JL913b
NAETC-5866
89101112131415161718
P613b
R641
NAETC-5865
P503
NAETC-8373
JL711A
NADIS-8371
P711
P301
P302
R534
P522
R533
P211a
JL913a
P501
VCT
IID
STE
SD
TMUT
+12V
TUR
E
TUL
E
RDS
RFIN
PLL
CL
DATA
L-IID
P916a
NAAR-5864
P613a
P711a
P711a
JL912a
PHONOCDT1-RT1-PT2-RT2-P
RIGHT
1
30
IID VCT
RI
P521
R-IID
SP TERMINAL
NPT-1283D
T901
U1
Main circuit PC board ass'y
U2
Volume PC board ass'y
Secondary terminal PC board ass'y
U3
Display circuit PC board ass'y
U4
U5
U7
U9
U8
U6
U11
Tuner unit
Connection PC board ass'y
Terminal RI PC board ass'y
Primary circuit PC board ass'y
Transformer terminal PC board ass'y
Headphone terminal PC board ass'y
A
1
2
3
4
5
BCDEFGH

TX-2100
PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE
03
3
P30
C9
1
6
C9
1
6
15
5
C915
15
C915
P
P
L501
L
501
L501
L50
1
2
P50
1
P50
1
16
16
7
C9
C9
C9
Q
5
2
Q
Q
Q
52
C
C
C533
C
C536
C
Q9
Q9
Q
24
R9
9
R
3
2
J
J305
J3
J303
J
C53
4
D591
D59
R
R50
R
R
R50
R
Q593
3
Q
59
C593
3
C5
59
R436
R
43
Q493
Q
49
VCTVCT
EE
RL
L59
1
R
RL
RL591
R
L
5
J517
J51
7
C5
587
C
J334
4
J
J3
J3
J3
365
J38
4
C942
C
J385
J36
J
36
JL261a
JL261a
JL
a
J444
4
4
4
4
C
R
R5
R
J375
J3
3
7
5
76
6
J
J37
72
72
3
71
P3
P371
P371
11
D
91
J
42
9
5
J
42
J426
J426
J
4
09
J493
J4
493
3
C
C
C
C
R
R
91
D
11
J360
J
J36
0
J404
J524
J524
J524
30
27
27
25
7
7
7
22
2
2
30
0
3
25
2
5
2
27
30
30
0
27
2
27
30
1
17
30
5
15
30
30
30
15
5
22
15
15
7
17
30
30
N
C
ET
C
-
5866
8
8
9
1
0
11
12
1
3
14
1
6
17
22
R92
R
92
0
J
J993
C
9
C
991
15
7
7
U1
U2
U3
NAAR-5864-5A,Main circuit PC board ass'y
NAETC-5865-5A,Volume PC board ass'y
N
A
E
T
C
5
8
6
6
5
A
,
S
e
co
n
d
a
r
y
t
e
r
m
i
n
a
l
P
C
b
o
a
r
d
a
ss
y
A
1
2
3
4
5
BCDEFGH

TX-2100
PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE
01
J901
904
J9
RL
90
1
A
C
-
H
G
A
C
-
G
C
C
90
1
J906
J906
J
J
2
P90
1
A
A
P
J913
13
J914
14
J915
5
J916
6
7
J917
R901
R
9
0
2
T9
T902
T
S901
S901
V
V
T
1.6
AL
250
V
F
F902B
F
F
90
2
P900
G
A
C
-
G
AC-H
CH
FIRE
FUSE
FUS
FU
MA
MA
MA
7
7
20
0
20
0
15
1
12
1
12
1
2
25
5
0
30
C5
C
5
7
5
C5
C576
C
D7
703
D7
J
7
03
702
J70
02
J70
701
J7
Q702
Q702
Q70
08
R743
43
R74
R7
R742
R7
742
R742
7
R
7
739
70
703
R7
R
7
R783
R783
R
83
7
758
R7
D
D
70
4
D
R
R
70
9
R
R777
R77
77
7
J738
73
38
8
38
J7
J
J7
J73
R750
0
5
R7
75
R7
0
R752
R752
J710
7
1
0
J
37
7
7
7
J7
3
704
J7
70
04
R
R
71
1
R
R
J
70
6
09
709
MUTO
UT
M
MU
V
V
V
O
L
-
O
V
O
S
S
S
P-
B
TMUT
TM
MUT
TMUT
IP
IP
N
742
42
42
74
J
J
7
TM
M
M
T
TM
TM
R772
R772
R7
772
L
STB
STB
STB
FMU
C724
24
C72
C724
9
9
9
TA
EC
C
E
CT
D
DIRE
UP
UP
UP
DOWN
DOWN
DOWN
P
O
WE
R
C
C715
C
7
7
1
4
C7
C71
C7
713
708
C708
70
8
7
R7
R768
R768
R76
68
2
2
L
70
2
701
1
S70
708
0
0
0
Y
OW
POW
W
75
R
7
51
Q
Q
70
7
Q
D
D
70
5
D
JL
L
71
1
J
D7
D
D7
706
785
R7
785
5
Y
9
9
J71
J7
J71
719
J712
J
71
2
2
70
05
70
J7
711
711
11
J7
39
J
7
3
9
J73
J
J7
35
3
7
J
707
07
70
07
J7
3
71
A
1
1
1
J753
3
5
75
J
7
7
1
7
C7
P7
00
75
C7
51
17
7
7
1
15
1
5
17
1
17
7
1
12
7
7
22
15
15
1
5
2
2
2
2
7
7
22
7
7
A
1
2
3
4
5
BCDEFGH
P911a
P911a
P913a
P913a
P912a
P912a
NC
ET
C
-
83
74
25
1
383
7
4
7
5
3
1
0
U
USA
U
S961
S961
1
P961
1
1
1
P101
01
P10
DT
DT
DT
C
L
PLL
R
D
S
G
L
R
12
MT
S
D
S
T
G
0
02
R1
0
C
C
C
C
J10
J
0
02
J1
J103
1
03
103
J
J
J106
J
J10
J
0
05
J1
P
1
0
P103
P10
2
P
1
0
P
20
NAETC-8374-1A,Transformer
terminal PC board ass'y
U4
U5
U7
U8
U9
U6
NADIS-8371-1A,Display circuit PC board ass'y
NAETC-8373-1A,
H
a
d
n
i
a
l
P
NAPS-8372-1A,Primary circuit PC board ass'y NAETC-8376-1A,Connection PC board ass'y
NAETC-8377-1A,Terminal
RI PC board ass'y

TX-2100
PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE
03
3
P30
C9
1
6
C9
1
6
15
5
C915
15
C915
L501
L
501
L50
L50
1
02
P50
1
P50
1
5
5
C316
C316
Q5
C
C
C533
C
C536
C
J30
1
C51
C
C51
C5
537
C
R55
1
J3
12
J
J305
J3
J303
J
C53
4
D591
D59
559
59
560
60
60
33
J3
36
R
R50
R
R
50
R
VCTVCT
L
L
DATA
DA
TA
EQ
E
EQ
UTUT
EE
E
RL
L59
1
R
RL
RL591
R
L
5
a
9
1
6a
9
9
J334
4
J
J3
365
C
C
7
7
J361
J
36
R
R
JL261a
JL261a
JL
a
J
1a
88
R
R
J375
J3
3
7
5
71
71
71
72
72
3
71
P3
P371
P371
J
42
9
5
J
42
J426
J426
J
4
09
14
J314
4
4
J360
J
J36
0
P592
92
J404
J524
J524
J524
27
27
25
7
7
7
22
2
2
30
3
25
2
5
2
27
30
7
7
30
5
15
30
30
5
15
15
7
17
30
30
U1 NAAR-5864-5A,Main circuit PC board ass'y
A
1
2
3
4
5
BCD

TX-2100
PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE
A
2
4
5
BCD
3
3
3
J4
J4
J4
C93
C93
C93
Q
Q
52
1
73
73
583
5
83
C583
3
C
23
3
C932
C93
2
R436
R
43
R575
75
ATA
A
TA
Q
O
OUT
O
E
E
E
J517
J51
7
R574
74
4
2
R55
R5
J445
J445
J444
4
4
4
4
43
4
32
C9
C5
C
11
D91
45
J4
58
C9
C9
J443
J44
43
2
J472
91
D
11
C98
83
23
23
23
30
30
0
27
2
27
17
7
1
17
30
3
0
15
5
R922
R
R921
R
921
J991
J
J
J993
C
1
5
U2
U3
N
A
E
T
C
-
5
8
6
5
-
5
A
,
o
l
u
m
e
P
C
b
o
a
r
d ass'y
NAETC-5866-5A,Secondary
terminal PC board ass'y

TX-2100
PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE
1
J901
RL
90
1
RL
90
1
C
C
90
1
55
J906
J906
2
P90
1
A
A
P
J9
1
1
J913
13
J914
14
7
J917
R901
R
9
0
2
T9
T
90
2
T
S901
S901
S901
8
918
V
V
T
1.6
AL
250
V
F902B
F
90
2
F903
F903
P
900
G
A
C
-
G
AC-H
CH
FIRE
FUSE
FUS
FU
7
7
20
0
20
0
15
15
1
12
2
25
30
3
0
C5
C
5
7
5
C
C576
C
J
7
03
702
J70
02
J70
701
J7
Q702
Q702
Q70
Q
Q
Q
708
R743
43
R74
R7
D
7
0
R783
783
R
83
D
D
70
4
D
R
R
70
9
R
R777
R77
77
7
J72
J7
J
25
50
0
5
R7
R7
75
R7
0
R752
R752
J710
7
1
0
J
704
J7
70
04
R
R
71
1
R
R
J
70
6
709
709
C724
24
C72
C724
TA
DIREC
C
E
CT
DIRE
UP
UP
UP
DOWN
DOWN
DOWN
P
O
WE
R
708
C708
70
8
701
1
S70
Y
Y
OW
PO
W
75
R
7
51
Q
Q
70
7
Q
D
D
70
5
D
JL
L
71
1
J
D7
D
D7
706
785
R7
785
5
Y
Y
V
V
J719
J7
9
J71
719
J712
J
71
2
2
70
05
70
J7
707
07
70
07
J7
3
71
A
1
1
7
7
1
7
C7
2
2
2
P700
75
C7
51
17
7
7
1
17
7
7
1
15
1
5
2
2
P911a
P911a
P913a
P913a
P912a
P912a
NC
ET
C
-
83
74
25
1
383
74
7
5
3
1
0
N
AETC-8374-1A,Transformer
e
rminal PC board ass'y
U4
U5
U7
U6
NADIS-8371-1A,Display circuit PC board ass'y
NAETC-8373-1A,
H
a
d
n
i
a
l
P
a
NAPS-8372-1A,Primary circuit PC board ass'y
A
1
2
3
4
5
BCD

TX-2100
PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE
A
1
3
4
5
BCD
Q702
Q702
Q70
Q
Q
7
Q
R742
R7
742
R742
41
1
R74
41
R740
R
74
40
7
R
7
739
C707
7
707
R
R7
70
703
R7
R7
4
2
C702
758
758
R758
R759
J72
J7
J
25
J738
73
38
8
38
J7
J
J7
J73
737
7
7
J7
3
MUTO
UT
-M
MU
V
2V
V
V
O
J742
42
42
74
J
7
TM
M
T
TM
TM
R772
R772
R7
772
LL
STB
STB
STB
FM
U
9
9
9
C
C715
C
7
7
1
4
C7
C71
C7
713
R7
768
768
76
68
2
2
L
70
2
1
1
1
08
39
J
7
3
9
J73
J
J7
35
3
7
J
1
1
1
7
J753
3
5
75
J
17
1
17
7
1
12
7
7
15
15
1
5
7
7
22
7
7
S9
S
961
S961
S961
RA
AR
RA
A
13V
13V
3
E
E
E
POW
POW
OW
1
P
961
25138377
25138377
NCETC 8377
PO
P
O2
O
P
O
O2
01
01
DT
DT
DT
CL
PLL
RF
R
D
S
G
L
R
M
T
S
D
S
T
G
0
02
R1
0
0
C
1
01
0
R10
04
0
01
2
J103
1
03
103
J
J
J106
J
5
P
1
0
P103
P10
2
P
1
0
P
20
U8
U9
NAETC-8376-1A,Connection PC board ass'y
NAETC-8377-1A,Terminal
RI PC board ass'
y

TX-2100
IC BLOCK DIAGRAMS AND DESCRIPTIONS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
VSS VDD
GND CK DATA STB
LEVEL SHIFTER+SHIFT REGISTER
CIRCUIT
(R-ch)
10bit
Latch
Circuit
(Same
as L-ch
Circuit)
(L-ch)
10bit
Latch
Circuit
2
3
4
5
6
7
8
9
10
11
12
27
26
25
24
23
22
21
20
19
18
17
13 14 15 16
128
TC9273N-010(Analog Switch Array)
Pin No. Symbol Description
1 Vss Negative power supply pin
13 GND Digital ground pin
28 VDD Positive power supply pin
2/27 S1
3/26 S2
4/25 S3
5/24 S4
6/23 S5
7/22 S6
8/21 S7
9/20 S8
10/19 S9
11/18 S10
12/17 S11
14 CK Clock input pin for data transfer.
15 DATA Serial data input pin for setting switches.
16 STB Strobe input pin for data writing.
Input/Output pins
1
2
3
5
6
7
8
9
PROTECTOR
REGU-
LATOR
Vss
OUT1
OUT2
IN1 IN2 GND
Vcc Vref
TA7291S(Volume Motor Driver)
IN1
0
1
0
1
IN2 OUT1 OUT2
0STOP
0H LCW/CCW
1L HCCW/CW
1 L L BRAKE
CCW: Counter-clockwise direction
CW: Clockwise direction
INPUT OUTPUT MODE

TX-2100
MICROPROCESSOR-CONNECTION DIAGRAM
TX-2100
STBY
RDSSCK
8G 9G 10G 11G 12G P1 P2 P3 P4 VLOAD P5 P6 P7 P8 P9 P10
P11
P12
P13
P14
P15
P16
PROTECT
RFIN
SD
ST
VDD
S.TONE
REMIN
SYSIN
POFF
RDSDATA
POWER SPARL SPBRL F-MUT T-MUT
X2 X1
VSS
XT2 XT1
AVREF
AVDD
K0 K1 K2 K3
K4
MODE1
AREA
MODE2
AVSS
RST
VOL-DN
VOL-UP
STB
NC
NC
PLL
DATA
CL
VDD
1G
2G
3G
4G
5G
6G
7G
Q701
MPD78044FGF-217-3B9
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
S713 SP-A S711
TAPE-1
S712
SP-B
S722
TAPE-2
S721
DOWN
S719
D.TUN
S720
UP
S738
8
S701
POWER
S737
7
S735
5
S734
4
S733
3
S732
2
S731
1
S736
6
S710
FM
S718
MEMORY
S724
MUT/MODE
S723
SCAN
S717
9
S716
0/10 S715
GROUP
S709
AM
S708
PH
S707
CD
R744 4.7K R743 2.2K R742 1.2K
R752 12K R751 4.7K R750 2.2K R749 1.2K
R766 12K R765 4.7K R760 470R764 2.2K R763 1.2K R762 820 R761 680
R741 820
R748 820
R753 470
R746 470R747 680
R740 680 R739 470
Q702 FL TUBE
MNA-12MM49
ABNORMAL
VOLTAGE
CURRENT
DET.
Q302
SELECTOR
SWITCH
TC9273N-010
MQ481 TA7291S
Q703
SYSTEM
RESET
TUNER
PACKAGE
INITIA-
LIZING
4.19
MHz
Q491,2,3
MUTING
SWITCH
Q592
SP B
RELAY SW
Q901
POWER
RELAY SW
Q591
SP A
RELAY SW
SYSOUT
RI IN/
OUT
U701
REMOTE
SENSOR
Q707
BUFFER
POWER FAILURE
DETECTOR