Kenwood 103SW Service Manual page 4

A B
INPUT/FILTER (210-6415-160)
15.2V
SPK JACK
C105
JK101
R105
0.01
1 100K 5 8 R111
+ 7 22K
R107 6
Lch
1 -
100K
2 IC101
SP 4
(1/2)
INPUT
R108
3 100K -15.5V
(FROM AMP)
R106
Rch
R110 5.6K
4 100K
C104 220P
5
Lch
6
TO SP
7
Rch
8
-15V
R210
15.2V
160K
C212 C211
100P 0.01
JK102 C209
0.033
2
IC202
R113 R115 IC201
Lch 8
(1/2)
3 (2/2)
12K 1K
1 + R211
LINE 1 2 27K 7
-
-15.5V
2 INPUT
4
3
R114 -15V
Rch
R212 R213
12K
33K 180K
IC204
SWC SWD
MODE SW
C.C C.B
VSS
(BOTTOM VIEW)
3
-15V
IC203
R217 R219
(2/2)
R216 R218
220K 220K
9.1K 9.1K
VR201A VR201B
50K 50K
(210-6415-140)
STAND-BY
SW401
1 2
W401
4
CN401A
CN201C U-COM (210-6415-130)
1 2 1 2 3 4
+5V +5V
5V AVR
15.3V IC403 5.6V
1 3
VI VD
+5V
GND D412
2 +
5
2.4V
RESET
5.0V
X401
Q441 4.19MHz
C442 R441
D414
4.7u25 1K
+ IC441
R442
1 3
IN OUT
4.7K
GND
R445 C443
2
10K 2200u10
+
R444 10K
+5V
( 9 )
( 10 )
6 DESTINATION
C204 C207 C631 F901 F902,3 F904
COUNTRY ABB
USA K 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 3.15A/4A 0.8A/0.8A -/-
CANADA P 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 3.15A/4A 0.8A/0.8A -/-
EUROPE E 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 1.6A/2A 0.8A/0.8A -/-
ENGLAND T 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 1.6A/2A 0.8A/0.8A -/-
GERMANY G 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 1.6A/2A 0.8A/0.8A -/-
AUSTRALIA X 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 1.6A/2A 0.4A/0.4A -/-
CHINA C 0.047UF/- 0.047UF/- 100U10/- 1.6A/- 0.4A/- -/-
GENERAL MARKET M 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 1.6A/2A 0.4A/0.4A 1.6A/2A
MALAYSIA I 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 1.6A/2A 0.4A/0.4A 1.6A/2A
PX Y 0.047UF/- 0.047UF/- 100U10/- 1.6A/- 0.8A/- 1.6A/-
JAPAN J 0.047UF/0.056UF 0.047UF/0.039UF 100U10/220U16 3.15A/4A 0.4A/0.4A -/-
Note: 103SW(SW-301)/1050SW(SW-501)
CAUTION: For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to parts list). indicates safety critical components. For continued
protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk
7
of electric shock, leakage-current or resistance measurements shall be carried out (exposed
parts are acceptably insulated from the supply circuit) before the appliance is returned to the
customer.
C D
+15V
C201 C202
AMP
3 C107 R202
0.01 100P
- 1 47u16 47K 3 8
+
2 1
+
+
2
- 15V AVR
IC101
IC201
4
(2/2)
(1/2)
R112 5.6K
-15.5V
C106 22P
R204
47K
+
+ +
+
-15V +
-5V
C203 R205 C240
6 C208 C206 C205 0.18 100 100P
- -15V -15V
0.18 0.18 0.18
5
+ -15.5V
-15V AVR
+5V
C241 0.01
5.2V
VDD
IC204 MODE
R258 R256 R257
C.D C.A 6 12 5 13
, , 10K 1K 10K
MODE A B
MUSIC L X
MOVIE H X
SWB SWA Q253
Q254
NOR X L
REV X H
Q254
CONT.
A
-5V
C217 0.01
15.2V CROSSOVER
SLOPE
IC203
R223 R225
(1/2)
5 R221 R222 R224 -24dB
+ 4.7K 9.1K 120K 9.1K 120K C221
7 3 8
+ 1u50
6 1
SW201
- -12dB
VR201C VR201D 2
+
-
50K 50K
4
R220 100 R226
+
100
50K Cx4
CROSSOVER FREQUENCY(REAR)
+5V
( 25 )
( 26 )
5.0V 5.0V 0V
VOLUME
MOTOR
IC401
DRIVE
IC402
4.9V
u-COM
5.0V
UP UP
6.6V 7.1V
0V
5.0V
5.0V
R433
C406 100
0.047 IC404
R434
100 R432
4.7K
C410
5.0V
0.01
IC404
REMOTE SENSOR C405
0.1
+5V
IC441
RESET IC
R206 R603 R606 R613 R614 R631 R663 R801,2 R851 R871 R872 SW902A
12K/27K 1K/820 -/1K 220K/270K 82K/120K 18K/22K 820/1.5K 4.7/4.7 220/- 4.7/- 4.7/- X/X
12K/27K 1K/820 -/1K 220K/270K 82K/120K 18K/22K 820/1.5K 4.7/4.7 220/- 4.7/- 4.7/- X/X
12K/27K 1K/820 -/1K 220K/270K 82K/120K 18K/22K 820/1.5K 4.7/4.7 220/- 220/- 10/- X/X
12K/27K 1K/820 -/1K 220K/270K 82K/120K 18K/22K 820/1.5K 4.7/4.7 220/- 220/- 10/- X/X
12K/27K 1K/820 -/1K 220K/270K 82K/120K 18K/22K 820/1.5K 4.7/4.7 220/- 220/- 10/- X/X
12K/27K 1K/820 -/1K 180K/180K 82K/120K 15K/18K 560/- -/- 180/- 4.7/- 4.7/- X/X
12K/- 1K/- -/- 180K/- 56K/- 15K/- 560/- -/- 180/- 4.7/- 4.7/- X/-
12K/27K 1K/820 -/1K 180K/180K 56K/75K 15K/18K 560/- -/- 180/- 4.7/- 4.7/- O/O
12K/27K 1K/820 -/1K 180K/180K 56K75K 15K/18K 560/- -/- 180/- 4.7/- 4.7/- O/O
12K/- 1K/- -/- 220K/- 82K/- 18K/- 820/- 4.7- 220/- 220- 10/- O/-
12K/27K 1K/820 -/1K 15K/18K 56K/75K 15K/18K 270/270 -/- 180/180 4.7/4.7 4.7/4.7 X/X
The DC voltage is an actual reading measured with
a high impedance type voltmeter. The measurement
value may vary depending on the measuring
instruments used or on the product.
E F
POWER AMP (210-6415-110)
CN803A
PEAK
3
POWER 2
15.2V
21.3V
R621
220K
MUTE 1
X
Q872
R872
1W
15.8V
CN601
C874 R876
S IN 1
220P 470
+
W802
3 +V GND 2
2 GND DET 3
1 -V
+
C873 R875
220P 470
-16.1V
X
R871
1W CN802
Q871
-24.9V
+V 3
GND 2
CN201A
-V 1
+15V 7 +15V
6 GND
5 CONT.B
MUS:5.2V
R253 4 CONT.A
MOV:0V
10K
R255
1K
3 SOUT
R254
Q251 2 GND
10K
AC-L2 9
CONT. 1 SIN
D GND 8
B
AC-L1 7
Q252
NOR:5.2V
REV:0V
BUFFER
IC202
W601
AC-H2
6
(2/2)
5 C224 R233 C225 1 SIN
AC-H2 5
+ 10u25 1K 0.047
7
6
2 GND
+
- GND 4
R234
3 DET
GND 3
R231 5.6K 100K
+
AC-H1 2
AC-H1 1
CN801
CN803B
1 2 3 9 8 7
LED ON/OFF
+15V
Q403 1.8V
D411
R437
STAND-BY
1K
0.7V
D404
GREEN
PEAK
D403
R423
NOR
D401 560
( 38 ) LGND
R424
REV
D402 560
AC-L2
( 39
)
Q402 L401
R428 2.0V R425
1K 0.3V
( 40 ) 39
MOVIE
1.0V
LAMP
ON/OFF
R426
Q401 L402 39
15.4V
LAMP MUSIC
D418
CONT. R430 0.3V
1K 0.3V D419
R439 4.7K
+
0.8V
Q405
R431 CN402A
2.2 3 CCW
2 CW
1 GND
D801 Q602 Q603 PST600C 2SA1015GR
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R) 2SC2878A
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
D3SBA20/- 2SC5198/- 2SA1941 (R) /-
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R)
TC4066BP
D3SBA20/- 2SC5198/- 2SA1941 (R) /-
D3SBA20/D5SBA20 2SC5198/2SC3281 (R) 2SA1941 (R) /2SA1302 (R) 2SC1846
G H
R633 270 4.5V X
Q631 R631 D631
0V
C612
0.047
4.9V + +
R622 R623
22K 22K
A
-7.8V
R624
-7.8V
100K
Q621 A
PRE
+ -6.3V
MUTE
DRIVE
DRIVE
IC
MUTE 3
C601 R601
2
10u25 1K 4 1
14
13
+
5.1V
0V
IC601
C603
Q622 X
R603 100u25 5
10
9
+
8
B 7
6
+2.1V
IC851 PROTECT IC
0.4V 5.1V
0.5V
C851
1u50
0.6V
+
R853
+
R811
2.7K Q601
1.5K
-0.7V
+V
1/4W R855
2.7K
IDLE
ADJ.
+ R852
D811 4.7K
+
D812
R854
+
X
10K
R802 D853
D813
1W
0.7V
Q851
RELAY
X ON/OFF
D814
R801
A
1W
D851
R655
2.7K
C660
DC 1u50 OVER LOAD
X
D801 DET.
DETECT
+
C806 C805
R656
~ Q652
10000u 10000u
47K
63 63 OFFSET
- + VOL.DET.
+ +
0V A
~ -0.4V
R653
B
22K
0V
RY851
D651
R651
+
22K
+
POWER
ON/OFF
TRANSFORMER
210-6415-120
W801
6 5 4 3 2 1
X
SW902A
210-6415-150
240V
120V
USED
C901
(M,I,Y) TYPE
4700P
AC SW
SW901
T1
AC-H1 S5
1 1 1
GND
S4
AC-H2
S3
2 2 2
F902
AC-L1
S2
800MA 250V
F903
S1
800MA 250V
MOTOR
CN201B
VOLUME
W402
3 SOUT
MVR401
CCW 3
CW 2 M 2 GND
1 SIN
GND 1
UPD75004CU-076 UPC1237HA
2SB1274
2SD1913
103SW/SW-301/1050SW/SW-501
Y19-3900-10
I J
LIMIT
A -0.4V
R608 Q602,603 FINAL TR.
10 1/4W Q651
0V
X
Q602
R610
A
2.7
+
1/4W
C608
0.3V
0V
WOOFER
100P
0.5V CN804 SPK1
SP
SP+
12 RY601 1
ON/OFF
+ +
SP+
2
GND
11 3
-
-0.5V
C609
SP OUTPUT
100P 0V
R609
B
2.7 X 103 20V/4
R663
X D653
1/4W
1050 24.5V/4
Q603
-0.3V
R607 10 1W
1/4W
B
+
R615 10K
X
R614
+VCC
VCC ON
MUTE
AC OFF
2.2V
DET.
AUTO RECOVERY 3.5V
LATCH SW
IC651
R659 R658
SP
56K 12K
RELAY
DRIVE +
IC101,201-203 : NJM4558L
A , B VOLTAGE
IC204 : TC4066BP
IC401 : uPD75004CU-076 A B
IC402 : LB1641
103 46.2V -46.3V
IC403 : 78L05A 1050 55.8V -56.4V
IC404 : W02-3003-08
IC441 : PST600C.
IC601 : uPC1298V
IC651 : uPC1237HA
IC851 : NJM2072D
Q251,252,401-403,405,441,631,651,851
: 2SC1815GR
CN901
Q253,254,621,652 : 2SA1015GR
Q601 : 2SC1846
Q602 : X
Q603 : X
(K,P) : AC120V 60Hz
Q622 : 2SC2878A
(Y,M,I) : AC110-120V
Q871 : 2SB1274
/220-240V~
Q872 : 2SD1913
50/60Hz
(C) : AC220V~ 50Hz
(X) : AC240V~ 50Hz D401,402 : B30-1820-08
(T,E,G) : AC230V~ 50Hz
D403 : B30-1821-08
D404 : B30-1822-08
D411,412,414-419,631,852,853 : 1SS133
D413,651-653,811-814,851 : 1SR139-100
D801 :
X
ZD101,102 : MTZJ30B
ZD401 : MTZJ6.8B
D815,ZD873,874 : MTZJ5.1B
ZD871,872 : MTZ16B
NJM4558L
103SW/SW-301
1050SW/SW-501
78L05A LB1641 UPC1298V