Kenwood KRC-16A Service Manual page 11

K
+8V
FM+B
SW
Q201
R200
1K
38
R203
22K
R202
L7
1K
4.7uH
37
Q203
AM+B
SW
+8V
C209 47u10
+
R500 2.2K
62
R501 2.2K
6
R502 2.2K
R503
5
1K C500 10u6.3
2.4V
Q500
+
C501
330P
2.4V
L12
4.7uH
5.0V
P5V
0V
+
P5V
RDS DECODER
R252
47K
ME1 (D40-1136-05)
CN1
C251 R251
0.047 10K
FWD/REV Ref.99
1
GND
2
HEAD R
3
+
HEAD COM
4
HEAD L
5
IC1 :
IC2 : TDA7400D
IC3 : HD74HC27FP
IC4 : TDA7386
IC5 : LA3161
IC6 :
IC7 :
D50 : 1N5393G-M6 or
D51,405,410 : MA4068(N)-M or
D52,200 : MA4051(N)-M
D53,260,261,351,370,371
:
D54 : MA4056(N)-M
D55 : MA4091(N)-M
D56 : MA4110-L
D100,150-152,352
: 1SS133
D380 :
D400,401,404,408,409
:
+B
L
J1
FRONT END
A1
1
RF GND
2
FM ANT
W200
3
AM ANT
4
RF GND
L6
4.7uH
5
+B FM+B
6
AM+B
+B
7
OSC GND
8
OSC GND
9
OSC GND
10
OSC GND
11
L8
VT
4.7uH
12
+8V PLL+B
13
IFC OUT
14
36 SDA
15
35 SCL
D200
16
DIG GND
17
VDD 5V
+5V
18
IF2 GND
19
IF2+B
20
AUDIO OUT
21
32 SD
22
76 S-METER
23
IF1+B
24
IF1 GND
IC7
∗
E
16
RDCK
1
QUAL
15
T57
2
RDDA
C504 10P
14
3 OSCO
VREF
X2
4.3320MHz
C505 10P
4 13
MPX OSCI
5 12
OSEL
VCC P5V
6 5.0V
GND
11
EXTRES
7
ARI 10
TM
8
FILOUT
9
TSEL
0V
S2
S3
FWD
6 T.MUTE
5 GND
REV
4 MOT GND
Rch
M
3 MOT+B
M1
S1
HD1
2 PACK IN
Lch
1 GND
∗
Q49,50,52,57,61,500,503
: 2SC2412K or
2SD601A
Q51,261 : 2SB1443
Q53 : 2SA1036K
PST9135NR Q54,58 : DTC144EK or
TDA7479D UN2213 or
KRC104S
Q55,59,153,352,502
∗
S2V20 A : DTA124EK or
UN2112 or
HZS7A3L KRA103S
Q56,60 : 2SA2057 or
2SB1548(P) or
DSM1SD2 or 2SB1655(E,F) or
AM01Z or 2SB1565(E,F)
ERA15-01 Q150 : DTC124EK or
UN2212 or
KRC103S
Q151,260,353 : DTC114YK or
UN2214 or
KRC107S
MA4047-M Q201,203,350 : 2SB1277(Q,R)
Q301 : DTA144EK or
MA4062-L UN2113
Q320,351 : 2SA1037K
SIGNAL LINE
Q450,451 : DTC143TK or
UN2216
GND LINE
Q501 : DTC114TK or
B LINE
UN2215
M
ANT
2SB1565
2SA1037K
2SB1548
LA3161
CAUTION: For continued safety, replace safety criti-
cal components only with manufacturer's recom-
mended parts (refer to parts list).
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 insulated from the
supply circuit) before the appliance is returned to the
customer.
X16-
KRC-16,191,265L/R,26,291
J1
2/2
A
N O
DTA114EK KRC103S
DTA124EK 2SA1036K
DTA144EK 2SC2412K
DTC114TK
DTC114YK
DTC124EK
DTC143TK
DTC144EK
KRA102S
KRC104S
2SB1277
2SB1443
TDA7479D
indicates safety