Kenwood KRC-225 Service Manual page 11

A
1
2
DC CORD
(E30-4783-05)
KRC-225/235 (K)
3
4
DC CORD
(E30-4784-05)
KRC-265/265S (M)
5
6
7
B
1 5
J4
2 6
3 7
4 8
14.4V
Q58,59
ILLUMINATION
+B SW
WH1
T.MUTE 6 28
GND 5
D260
MOT GND 4
Q261
13.6V
MOT +B 3
+B
10K
Q260,261
47K
PACK IN 2
MOTOR
Q260
+B SW
GND 1
IC1 : LC72366-9592
IC2 : TDA7461ND
IC3 : HD74HC27FP
∗
IC4 :
IC5 : LA3161
Q50,52,57,61 : 2SC2412K or
2SD601A
Q51,261 : 2SB1443
Q53 : DTA114YK or
UN2114 or
KRA107S
Q54,58 : DTC144EK or
UN2213 or
KRC104S
Q55,59,153,352 : DTA124EK or
UN2112 or
KRA103S
Q56,60 :
2SA2057 or
2SB1548(P) or
2SB1565(E,F) or
2SB1655(E,F)
Q150,200,202 : DTC124EK or
UN2212 or
KRC103S
Q151,260,353,371 : DTC114YK or
UN2214 or
KRC107S
Q201,203,350,370 : 2SB1277(Q,R)
Q301 : DTA144EK or
UN2113
Q320,351 : 2SA1037K
Q450,451 : DTC143TK or
UN2216
C
J4 TOP VIEW
13 11 12
9 10
1 REQ H 6
2 GND 7
3 B.U. 8
9
4 CON 9
5 MUTE 10 DATA C
10
13
11
12
R412 100
R401 C401
10 0.47u50
+
R411 100
R410 4.7K
R409 4.7K
R402 10 C402 0.47u50
+
R408 1K
R400 4.7 C400 22u6.3
+
R407 4.7K
R406 4.7K
R405 100K
R404 100K
BU
R403 100
D408
Q59
D409
D405
Q58
D404
D56
Q60
Q61
Q60,61
ILLUMINATION
+B DRIVER
∗
D50 : S2V20 A or
1N5393G-M6
D51,405,411 : MA4068(N)-M or
HZS7A3L
D52 : MA4051-L
D53,260,261,350,351,370,371
: AM01Z or
ERA15-01 or
DSM1SD2
D54 : MA4056(N)-M
D55 : MA4091(N)-L
D56 : MA4110-L
D100,150-152,352
: 1SS133
D200 : MA4051(N)-M
D400,401,404,408,409
: MA4062-L
SIGNAL LINE
GND LINE
+B B LINE
D E
J2
16
8
8 4 3 2
6 7 5 1
A GND 11 DATA H
RST 12 Lch
Rch 13 CLK
REQ C
BU
∗ R370
Q370,371
4.7K
A
ANT-CON.
D370
SW
Q371
13
7
12
11
32
D350
5
R351
1K
6
1/2W
1
34
P-CON.
SW
Q353
BU
35
+5V
41
∗
D
Q301
CHANGER
RESET
SW
Q301
47K
47K
15 14
7 6
R350
4.7K
14.4V
BU
P5V
R110 47K
R108 47K
∗
R120 47K
∗
R122 47K
∗
R121 47K
∗
R123 47K
R132
100K
R102
2.2K
63