Kenwood RXD-M52-L Service Manual page 14

AE AF
(X29-270X-XX)
Q Q
+9V
3 7 6 3 1 5 1 5 0
+5V
+7V
+5V
+B
4
B
IC12
MD BACK UP
POWER
X4 DETECTOR
4.332MHz
80
RDS 81
DEMODULATOR
82
83
84
85
D10
MD : 8.7V
86
DECK : 20.4V R151 R150 R149
4.3K 15K 3.3K 87
90
R143 10K
R159 C72
7.1V PROTECTION
4.3K 4.7u50
DRIVER
88
+
MD : 8.2V
R144 10K
DECK : 20.0V
Q2
R147 10K
5.1V
T E
L 1 3 9 4 2 2 9 6 5 1 3
4.6V
D2 R171
1
+B
+5V R172
4.7V
+B +5V
4.7
RESET
IC
RESET
IC2
C52 R104
D1
1u50 1K
OUT IN
+
GND
Q1
5V
+5V
MD VERSION : 5.1V
DECK VERSION : 12.1V
+12V
+12V
w w w
MD VERSION : 5.1V
DECK VERSION : 12.0V
.
AG AH
MD VERSION : 8.7V
DECK VERSION : 20.4V
56
+B
54
Q7
D
Q6
AMP
81
LD ON
82
SPEED
83
DC OFF
84
LOAD OUT
85
LOAD IN MD/DECK
86
V/H
R195 87
D IN SW
1K
R196 88
8 SW 1
1K
R148 100
89
XY SW
IC1
90
PROT
SYSTEM u-COM
91
91 PROT TEMP
92
92 A IN LEVEL
93
BACKV
94
RDS S LEVEL
C74
95
KRO
2200P 96
A VSS
C75
97
KRI
4.7V
2200P
98
+5V AVREF 4.6V
99
+B A VCC
R145 R197
100
12SW
10K 1K
100
for CD for CD
R153
15K
R154
15K
R110 C77
4.7M 1
R112
X2
1M
X1
+B
+5V
+5V
x a o
y
i
AI AJ
+9V
+5V 8
+7V
+5V
+B
5.1V
+5V
4.6V
R131 220
R130 220
R141
R129 220
47K
TUNER
50 R128 220
HALF SW
49 R127 220
REC F SW
R126 220
48
PH SW
47 R125 220
CL SW
46 R256 1K
LCD CS1 46
R124 220
45
OP SW 45
44
SCL
43
SDA
42
STB 42
41
W/R 41
Q Q
41
3 7 6 3
40
SMK 3
39
SMK 2
38
SMK 1
37
SQCK 37
R115 220
36
SQSO 36
C65 470P
R158 1K
35
SMK M/D
34 R176 1K
LCD RST 34
DISPLAY
R175 1K
33
LCD SCL 33
32 R174 100
LCD AO 32
R173 100
31
LCD SI 31
C61
0.1
+5V
+5V
5V
+5V
+12V
+12V
u 1 6 3
.
AK AL
+9V
2 4
9 9 8
+7V
+5V
+B
10V
C165
33P
IC14
53 -5V AVR
(MD)
52
51
IC3
MD VERSION
: 8.7V
DECK VERSION
MD VERSION
: 20.4V
: 5.1V
DECK VERSION
: 12.1V
R233
50
0.1 1/2W
49
C151 W31
48
+
47
+12V
C69
1000P R122
100K
R123
1 5 1 5 0 8 9 2 4
100K
+5V AVR
IC5
C68 R121 R120
4.7V
1000P 100K 100K
C67 R119 R118
1000P 100K 100K
+5V
5.1V 7.1V
5.1V
R116
100K
R117
100K
IC4
C66
MD VERSION : 8.4V
1000P
DECK VERSION : 20.4V
R234
4.7 1/4W
C154
+
MD VERSION : 5.1V
DECK VERSION : 12.0V
m
c o
Y39-3560-10
AM AN
2
9 9
C
CN9
79 1 DECK DT
78 2 DECK CLK
53 3 REC R SW
52 4 TYPE SW
51 5 PLAY SW
50 6 HALF SW
49 7 REC F SW
48 8 PH SW
47 9 CL SW
45 10 OP SW
77 11 SLT OP
76 12 SLT CL
41 13 STB
CN5
1 Lch
2 A GND
3 Rch
X07-A/5
4 S GND
9.1V -CN5
+9V 5 TUNER V
6 u GND
3/3
5.1V
+5 7 u +5V
D
8 F OFF
9 CD R GND
7.1V
10 CD S GND
+7V 11 CD S HOT
12 CD +7V
13 MD GND
+B 14 MD NR
10V 15 -10V
-10.0V
CN6
1 D GND
5.1V
+5V 2 D VDD
X07-A/5
3 SPD I/F
-CN6
57 4 T MUTE
9 8 2 9 9 91 5 PROT TEMP 3/3
90 6 PROT
67 7 A MUTE E
68 8 SPRLY
69 9 PWRRLY
71 10 HPRLY
72 11 HP DET
92 12 A IN LEVEL
4 13 FAN CONT
CN2
46 11 LCD CS1
X07-E/5
10 GND
-CN14
42 9 STB
3/3
41 8 W/R
34 7 LCD RST
F
32 6 LCD AO
-10V 33 5 LCD SCL
4.9V
ON/OFF
31 4 LCD SI
+5V 3 +5V
-10.0V
Q4
10V 2 -10V
R165
-10.0V
22 1 DIMMER
10K
CN1
-9.3V
28 1 ENC B
27 2 ENC A
24 3 LED CD
X07-C/5
DRIVER
Q3 25 4 LED MD/TAPE -CN9
(Q4)
23 5 STBY GR
3/3
21 6 STBY RED
5.1V
19 7 REM
G
+5V +5V 8 LED +5V
+5V 9 u+5V
4.7V
10 GND
11 KEY GND
95 12 KRO
97 13 KRI
RXD-M52 (2/3)
RXD-M52