Kenwood RXD-A55 Service Manual page 24

U V
IC901 : STK41203 (A75)
STK4121J (A55)
IC901
Q801 : AN78L05
Q802,901-904 : KTC3199GR
POWER
Q803 : KTA1274Y AMP
Q905 : RC107M
Q907 : KTC3203Y
D801,806-808,850,851,
907-909,911-913
: DS1SS133
D802-805,811-816,818,
901,902 : DS1N404S
D809 : TS6B04GM
D810 : D10XB60F
ZD801 : ZD330BSC
ZD802 : DZ6R2BSA
ZD803 : DZ4R3BSC
ZD804 : DZ110BSB
ZD901,902 : DZ120BSB
ZD951 : DZ130BSB
POWER SECTION
C917 R905
CNP901
0.22u50 1K
L-CH 1
+
R907
390
R908
A GND 2
390
C918 R906
0.22u50 1K
R-CH 3
+
F-1
LVL CTRL 4
21.5V
+B 5
CD : 9.8V
GND 6
CD+B 7
-13.4V
M +10V 8 +10V
R943
-26.8V
-15V 9 B B
680 2W
12.2V
M GND 10
SP RLY 11
SP DET 12
+5V 13
C904
4700u35
+
D902
D901
+5V
+10V
5 4 3 2 1 1 2 3 4 5 6 7 8
BI902 BI903
5 4 3 2 1 1 2 3 4 5 6 7 8
CNP903
VH+
VH+
VH-
VH-
GND
GND
VL+
VL-
CNP902
+5V
CD+B
M GND
+B
GND
CD LOADING
CNP905
MOTOR PWB-F
P IN
SW1
UN SW 5V
OPEN/
1
AC RLY
CLOSE
VF2
SW2 AK-2
-VP
2
CLAMP
VF1 6
3
SW3
4
DISC
NO
M
5 LOADING
6
W X
TR1 TR2
TR9
TR6
C2
R1 C1
TR8
TR3 TR4
TR10
TR5
R6
TR7
C911
220P
C912
220P
C915
47u50
SP. DET
+
C916
47u50
Q901
+
R919
1.5K
4.8V
5.0V
B
R936
D913
47K
R935
47K
26.8V
+B
-59.8V
B
59.8V
+B
+B
B
59.8V
8 +B
7 +B
-59.8V
D810
6 B
D809
5 B
4
3
26.8V
2 +B
+B
-26.8V
1 B
D813 D811
CD : 9.8V
21.5V
D807
D851 ZD804 D814 D812
1
2 +B
3
4 +B
5 R806
220K
Q803
D818
-32.8V R805
1 ZD802 10
C821
-33V AVR
1/4W
2 +5V
1000P
3
4
5 B
4.1V
+B
R807
D850 ZD803
47K
R804
Q802
+5V AVR
1K
Q801 D804 D802
5.7V
+5V OUT IN
RELAY GND
D805 D803
DRIVER
Y Z
TR12
TR11
TR19
TR16
C12
C11 R11 TR13
TR18
TR41
TR20 TR14
TR51 R41
TR15
R51
R16
TR17
SP. DET
Q902
R920
ZD902 ZD901
1.5K
4.8V
B
B
+B
+B
RL901
L901
SP. DET.
0.29uH
Q903 R925
D909
10 1/2W
R927
Q905
10 1/2W
Q904
SP.
D911
RELAY
DRIVER
SP ON :
R924
0.7V
5.0V 4.7 1/2W
R928
+5V
10 1/2W
SP : 12.1V
H/P : 0V
R926
10 1/2W
Q905 D912
R939
4.4V
L902
2.2K
0.29uH
+5V
12.2V
R941
T801 560 2W
R942
9
560 2W
F804
5A 125V
10
2
FH808 FH807
11
F805
5A 125V
MODEL NAME T801
12
RXD-A55 L07-3118-08
FH810 FH809
13 3
RXD-A75 L07-3116-08
F806
2A 125V
16
FH812 FH811
17 4
F807
2A 125V
18 5
FH814 FH813
14
TF801
AC 4.2V
150 C
15 7
6
(K,P) : AC120V 60Hz
FW801
FW801-A FW801-B
+B 1 1 +B
2 2
4 1
3 3
3 5
4 4 AC801
T802
AA AB
11G 10G 9G 8G 7G 6G-2G
P1 L1 K1 J1 Dp Dp Dp
P2 L2 K2 J2 d d d
P3 L3 K3 J3 c c c
P4 L4 K4 J4 n n n
P5 L5 K5 J5 p p p
P6 L6 K6 J6 r r r
P7 L7 K7 J7 e e e
P8 L8 K8 J8 m m m
P9 K9 g g g
EX.BASS
P10 K10 col
P11 K11 b b b
P12 K12 k k k
j j j
P13 K13 PGM
P14 K14 RPT. h h h
P15 K15 RDM f f f
P16 PTY K16 ST. a a a
P17 K17 S1 S1 S1
P18 RT K18 EQ. S2 S2 S2
P19 RTYI K19 S3 S3 S3
TI
P20 K20 S4 S4 S4
P21 TP K21 MHz
P22 TA K22 REC kHz
SO901
Rch
S1 S2
SPEAKER
S3
S4
OUT
a
Lch
LG901
h j
CHASSIS GND
CNP904 CNS904
f
1 1
k
FAN
M
2 2
MOTOR
M903 g m
Q907
HEADPHONES OUT
n
FW902
HP RLY
1 1
e
M +10V
+10V 2 2
HP L-CH
3 3 p
r
HP GND
4 4
HP R-CH
5 5
JK670
FW902 A WT902
d
(1G-8G)
C901, R909
R950 D703 D809 D810
902 910
3300u63 1.5K YES 12K D3SBA60F TS6B04GM
3300u71 1.2K NO 56K TS6B04GM D10XB60F
TAPE MECHA.
ASSEMBLY
CNS702
PLAY SW2 PLAY SW2
1 1
GND GND
M
2 2
END SW2 T2 RUN
3 3
Q703
MTR + T MOTOR 12.0V
4 4
MOTOR
DRIVER
Q704
SOL2 T SOL B
5 5
SOL.
DRIVER
SOL1 T SOL A
6 6
Q705
F-REC FPA
7 7
END SW1 T1 RUN
8 8
R-REC FPB
9 9
PLAY SW1 PLAY SWA
10 10
AC AD
DISPLAY SECTION
1G
B
Dp
d
c
n
p
r
e
m
g
b
k
C702
j
33u50
+
h
f
R784
a
33
C712
100u35
S1
+
R805
S2 B
P1
P2
S3
P3
P4
P5
S4
P6
P7
P8
P9
RESISTOR
ARRAY 47K
R803 47K
R802 47K
R801 47K
R804
b
c
OTP only
RESISTOR
(One time u-COM)
ARRAY 47K
R773
1K
61
Q709
Dp
R741
1K
57
R771
R740
1K 1K
56
R766
R739
10K
1K
55
R767
R738
10K 22K
54
R768
R737
10K 1K
53
R769
54
R736
10K 1K
52
51 R770
R735
10K 1K
51
R756
44 10K
42 50
R752
10K
43
55
50
56
DECK
53
STOP : 12.2V
PLAY : 12.1V
+12V