Kenwood KTF-2010 Service Manual page 10

www.freeservicemanuals.info K L
KTF-2010(X05-484X-XX)
DESTINATION UNIT
A B C
, , ,
COUNTRY ABB. NAME
EUROPE E 2-70
U.K T1 0-51
NO
VR1 AUSTRALIA X1 0-71
GENERAL MARKET M1 0-21
FM AUTO
STOP
KTF-3010(X05-484X-XX)
LEVEL
DESTINATION UNIT
X A , B , C ,
CF4 COUNTRY ABB. NAME
7.3V
EUROPE E1 2-71
C34
U.K T2 0-52 YES
JAPAN J 0-01
0.01
C240
100P
C245 +12V
100P
4.7V
VR4
3.3K
+12V
X X
W231 W87
R81
1K
+
R77 R78
4.7K 10K
+ +
C223
0.01
AM
0V
(12.4V)
+ AUTO
STOP +
LEVEL
2.5V 0V
(1.1V) (3.7V)
1.5V 2.3V 1.5V
0.2V
(2.1V) (2.6V) (2.1V)
IC1
FM/AM
NARROW
MIX AGC AM-IF DET S METER
S METER SYSTEM IC
LED POST IF IF
Q.D
DRIVER AMP BUFF. BUFF.
1.5V
3.2V
12.3V 2.4V 2.8V
(12.4V)
3.9V (2.5V) (2.2V)
(3.8V)
12.3V
(12.4V) + +
DISCRIMINATOR
L6
DISTORTION
L7
+
C228
R265
100P
5.1K
R7 C227
+12V
10 1/4W 47u16
+
P8
+12V
+5.6V
-30V
Q24 : 2SA954(L,K)
Q29 : 2SK246(Y,GR)
Q30,31,42,55,56 : 2SA933AS(Q,R) or
2SA1175(F,E)
Q36,37,57,60 : 2SK364(GR,BL)
Q46 : 2SA1534A(R,S)
Q47 : 2SD2061(E,F)
Q49,51,52 : 2SC3940A(R,S)
M N
C12-14,40,62,65,107 C39, C53, C101, R27-29,36,37,101,105-107,121,
E , F , H D C9 C19 C52 C80 C218
113,114,129-132,200 90 111,112 102 123,138-143,208,209,281,282,300
YES YES YES NO
NO
NO 330P 4700P YES 220P NO
NO W4 NO YES
YES
C39,53,62, C40,107,113, C80,101, C193, R27-29,
H D E , F C9 C12 C13 C14 C19 C52 C218
90,219,221 114,129-132,222 102,111,112 195 136,137
YES NO YES 1P 390P 5P 330P YES 560P NO NO YES
YES NO
NO YES W4 2P 100P 12P 100P NO NO YES 100P NO
CN4
1 2
+12V
R242
1
+12V
1/4W
C217
100P
Q46
+
C93 0.01
X2
456kHz
IC4
FM MPX
5
R86
14
1K
X AM
C53
X X X
R82 0.047 W153
X
R121
C91 47K
NOISE
1200P
METER
+12V
AMP
IC3
(2/2)
FM L14
5 8 R112 C92
+ 7 2.2K 4.7u35
6
+
- C85
R111
1000P
3.9K
+12V
(J)TYPE ONLY
AM STEREO
12
BUFFER
NOISE METER AMP
SW 1.2V
D24
C121
3
+ 1 R167 R168
470P
2
- 6.8K 5.1K
4
Q43
+
IC3
TUNED
: 0V R165 (1/2)
4.7K 1.7V
R166
1.2V
220K
X
C
AM STEREO
+B SW
+12V
Q45
+12V
W117 W71
C135
47u16
Q44
R184
4.7K
+5.6V
-30V
D1-3 : 1SS268 D36,64 : RD5.1JS(B2) or
D4 : SVC212(2.3) HZS5.1S(B2)
D5-10,12-19,23,24,27,28,30,
32-35,37,38,40-43,60,65 : 1SS133 or
HSS104A
D11 : MA111
D25,26 : S5688B
D31 : MTZJ11(B) or
HZS11N(B2)
O P
R69- R117,118,127, R136, R148, R401, Q20-22, Q34, Q35, W11,22,
R43 R54 R82 R83 R210 W7
73 128,131-133,188 137 149 402 25 36,37 51 26,27
NO NO
22 YES
YES NO NO YES NO YES NO
220
YES 3.3K 18K 4.7K NO
1W
56 NO NO NO
YES YES YES NO YES
R43,117,118,127, R69- R101,105-107,121,138,139, R140, R148, R401, Q20-22,
R36,37 R54 R82 R83 R123 R210
128,131-133,188 73 142,143,208,209,281,282,300 141 149 402 25
NO NO
120 10 1K 18K 36K 4.7K
100
NO YES YES 100K NO YES
1W
270 22 NO NO 15K 75K 4.3K NO
+12V
MONO
SW
X
W150
11.4V
+
(11.5V) X
C112
10u35
+
2.8V 2.8V
2.8V C94 2.8V
R116
(5.2V) (2.9V) D18
(7.5V) 1u50 (2.9V)
100K
+
3.4V C97
C95 5.0V
(2.5V) 1u50
0.22u50 (0.1V)
2.8V +
+
(9.3V)
11.3V
(11.4V)
X
W151
VOL PHASE PILOT LAMP
OSC
REG COMPARATOR DET DRIVER
X
C111
10u35
VCO STOP TRIGGER
SYMMETRICAL
REACTANCE
+
CIRCUIT
FF FF FF STEREO
FF FF
38KHZz 19KHz 90 19KHz 0 SWITCH
MUTING CONTROL MUTING
FM AM CHANGE OVER OUTPUT
DECODER
VCC ON
MUTING
Ra Rc
MUTING
FM AM CHANGE
Rc
5.4V 0.1V
3.2V 5.3V
(5.3V) (8.0V)
(5.2V)
3.2V 3.2V
+
W58 SEP
R125
R126
75K
75K
C100 C99
VR3
22K
680P 680P
X X X X
Q35 X
R128 C102 C101 R127 R134
2.2M 330P 330P 2.2M 1.2K
R113
2K
X
Q36 X
Q37
NARROW SW
(DISTORTION)
X
W84
( 15 )
DE-EMPHASIS ( 7 )
C197 0.01 R269 15K
SW
E
R175 + +
680K
+
0.4V
1.0V 1.3V
IC6
AM
SIGNAL STEREO
QUALITY
DECODER
DETECTOR
PILOT
IF DETECTOR
AMP
AM STEREO
DETECTOR
AGC
VCO 1/8
R171
0.6V
5.6K
8.7V
1.8V R172
5.6K
1.0V Q56
1.8V 1.0V 1.5V
+ + Q55
+
AM
MUTE
MODULATION
MODE CARRIER
FREQUENCY
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot)
AM 1000(999)kHz 400Hz MONO 30% MOD
Global electronic heritage manuals
Q R
W46,84,87,101, W50,51,58,86,91,110,111, W52, W61,69, W66, W83 131, S1,
IC5 A1 CF2 CF3,4
130,150,151,231 116,134,145,147,148,153 62,70 75,77,78 72 136,207 27
NO YES NO
YES W02-2509 L72-0536
YES NO YES NO
NO YES NO NO E70-0052
NO
NO YES NO W02-2512 L72-0546
YES YES
Q34, Q35, W7,46,66,72, W22,50,51,86,91,110, W52,62,70,83, W58,116, W61,69, W87, S1,
IC5 A1 CF2
36,37 51 84,130,150,151 111,145,147,148 131,136,207 134,153 75,77,78 101,231 27
NO YES
YES NO W02-2509 YES
NO YES YES NO YES NO NO YES
NO NO YES YES W02-2510 NO
+12V
12.4V
X
W50
X
W148
L11 5.1V
X X X
R282 2 8 R142 C113
- 1 220 10u35
3.9K
3 +
+
Q38
X R154
IC5
2.2K
(1/2)
+
R156
Lch
2.2K
POST
AMP
R157
2.2K
Rch
Q39
R155
X
L12 IC5 2.2K
X W147
(2/2)
ON: 0.7V
X X
R143 C114
5 4 OFF:-2.8V
+ 220 10u35
X
R281
6
+
- 7
3.9K
X
W51
MUTE
DRIVER
X
Q42
+5.6V
R80 R160
1K 10K
ANT
R197
220K C119
0.01
ON: 4.2V
GND
OFF:4.8V
R198
2.2M
+30V
GND
D23 D65
GND
+5.6V
Q57 VT
R330
C127
R332 2.2M
0.022 +B
100K
Q32 R179
R334
1M
W237 W12 22K HIGH
+ BLEND
X
H
J4
R261
D40 SGND
330
GND
R262
100K
BUSY
( 21 )
R264
DATA SYSTEM
( 20 )
CONTROL
100K
R263 D41
330
S2
XS8
( 18 )
XL16
X
S27
X X
W22 R188
DE-EMPHASIS CH. SPACE
10K
( 19 ) 50u FM50K/AM9K
75u FM100K/AM10K
X X
W27 R401
100
X X X
W11 W26 R402
8.2K
X05-B/4
-CN3
2/2
ANT INPUT
DEVIATION
60dB
60dB
Y07-3842-70
S 30/3/2014 T
J2 D11 L3 T1
L39-1328
YES L07-2082
L39-1325
NO L39-1328 L07-2084
CF3 CF4 J2 D11 L3 T1
L39-1328
L72-0120 L72-0120 YES L07-2086
E20-0321 L39-1325
L72-0551 L72-0546 NO L39-1328 L07-2088
Q38~41
MUTE
J3
R144 R146
150 220
Lch
Q40
OUTPUT
Q41
R147
R145 220
Rch
150
KT-2010 (E,T1) TYPE
A1 (W02-2509-05) KT-3010 (E1,T2) TYPE
DISTORTION (ST)
RF AMP
C1 C2 C9 MIX
1 27P 15P L2 C6 3P
TR1
C4 10P
0-6P
FET
IFT
7
IF OUT
D1
2
3
R8
4
R10 100
0-100
OSC
C19
5 8 OUT
100P
6
TR2
OSC
FET : 2SK302 TR3
C15 C16
TR1 : 2SC2714:90~140hfe
10P 27P BUFFER
TR2 : 2SC2996
TR3 : 2SC2715
D1~D4 : SVC212
IFT : R12 P194A
KTF-2010/3010 (1/2)
CAUTION: For continued safety, replace safety crit-
ical components only with manufacturer's recom-
mended 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 of electric shock,
leakage-current or resistance measurements shall
be carried out (exposed parts are acceptably insu-
lated from the supply circuit) before the appliance is
returned to the customer.
The DC voltage is an actual reading measured with
a high impedance type voltmeter as the AM/FM sig-
nal generator is specified to the conditions as
shown in the list below. The measurement value
may vary depending on the measuring instruments
used or on the product. The value shown in ( ) is
actual reading measured in the AM made.
A
KTF-2010/3010