Kenwood KRC-21SA, Service Manual

Page: 10 / 24

A B C D E
1
2
3
4
5
6
7
+B
BU
BU
BU
BU BU
+B
+B
+B
P5V
P5V
13
4
3
12 8
7 11
2
1
6 10
5 9
R412 100
R410 4.7K
R409 4.7K
R402 10
R411 100
R406 4.7K
R407 4.7K
R408 1K
R403 100
7
6
5
35
34
1
12
32
11
10 0.47u50
C401
+
R401
C402 0.47u50
+
R400 4.7 C400 22u6.3
+
R405 100K
R404 100K
R413 100K
6
5
4
3
2
1
T.MUTE
GND
MOT GND
MOT +B
PACK IN
GND
10K
R261
1K
R260
28
15
1K
R67
1/2W
13
Q370,371
27
2
A GND
REQ C
DATA C
8 B.U. 3
CON
MUTE
4
5 9
10
GND
REQ H
1
2
9
6
7
CLK Rch 13
10 6
RST
11
12
7 5
DATA H
Lch
13 11 12 8 4 3
1
2
Q260,261
Q58,59
Q60,61
RR+
ANT CONT/
GND
RL-
FR+
FR-
FL-
FL+
P. CONT
GRN
VIOL
VIOL/BLK
GRN/BLK
WHT
GRY
GRY/BLK
WHT/BLK
BLU/WHT
RED
BLU/WHT
BLK
6
5
8
7
AC
C
PCON
FR-
6
5 7
8
FL+ RL+
FL-
2
1
4
3
2
1
4
3
FR+
RR+
RR-
9 8
10
11
7
6
12 5
13 4
14 3
15
16
2
1
TEL MUTE
BUP
A
B
YEL
BRN
RL+
RL-
RR-
B LINE
GND LINE
SIGNAL LINE
SW
ANT-CON.
J4
D400
D401
D408
D405
D411
D409
D404
WH1
D261
D260
Q260
Q58
Q60
Q61
Q59
D56
Q261
IC1 :
IC2 : TDA7461ND
LC72366-9592
IC3 : HD74HC27FP
IC4 :
∗
IC5 : LA3161
Q50,52,57,61 : 2SC2412K or
2SD601A
Q51,261 : 2SB1443
Q53 : DTA114YK or
UN2114 or
KRA107S
KRA103S
2SA2057 or
KRC104S
Q54,58 : DTC144EK or
UN2213 or
Q55,59,153,352 : DTA124EK or
UN2112 or
Q56,60 :
2SB1655(E,F)
2SB1565(E,F) or
2SB1548(P) or
Q201,203,350,370 : 2SB1277(Q,R)
Q301
: DTA144EK or
UN2113
Q320,351 : 2SA1037K
Q450,451 : DTC143TK or
UN2216
D50 : S2V20
∗
A or
1N5393G-M6
D51,405,411 : MA4068(N)-M or
D52 : MA4051-L
D53,260,261,350,351,370,371
: AM01Z or
ERA15-01 or
DSM1SD2
HZS7A3L
D54 : MA4056(N)-M
D55 : MA4091(N)-L
D56 : MA4110-L
D100,150-152,352
: 1SS133
D200 : MA4051(N)-M
TOP VIEW J4
Q150,200,202
UN2212 or
KRC103S
KRC107S
DTC124EK or :
Q151,260,353,371
UN2214 or
DTC114YK or :
MA4062-L
D400,401,404,408,409
:
ILLUMINATION
+B SW
ILLUMINATION
+B DRIVER
+B SW
MOTOR
ISO CONNECTOR
CONNECTOR
MOLEX
13.6V
14.4V
13.6V
10.2V
47K
47K
22K
10K
47K
22K
∗
A
(E30-4790-05)
KRC-266/266S
DC CORD
DC CORD
(E30-4784-05)
KRC-21SA/SG/21SYA/SYG
BU
YEL
AC
C
GND
BLK RED
BLU/WHT
11 10
9
2 3 1
P
. CONT OUT
REAR R
VIOL
VIOL/BLK
REAR L
GRN/BLK
GRN
BLU
GR
Y
GR
Y/BLK
14 13 12
6 5 4
WHT/BLK
WHT
16 15
8 7
ANT
. CONT FR
ONT R
FR
ONT L
CAUTION : For continued safety, replace safety critical
components only with manufacturer's recommended parts
(refer to parts list).
Indicates safety critical components. 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.
• DC voltages are as measured with a high impedance
voltmeter. Values may vary slightly due to variations
between individual instruments or/and units.
!
2SB1565
DTA114EK
DTA114YK
DTA124EK
DTA144EK
DTC114YK
DTC124EK
DTC143TK
DTC144EK
KRC103S
2SC2412K
2SB1548
2SB1277
2SB1443
2SA1037K
LA3161
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