Schematic Diagram; Final Unit(X45-3780-20); Schematic Diagram Final Unit (X45-3780-20) - Kenwood TK-90 Service Manual

A
TK-90

SCHEMATIC DIAGRAM /

FINAL UNIT(X45-3780-20)

1
L12
470n
T:5.04V
L11
C13
220n
0.01u
RD06HHF1
PRE-DRIVE
AMP
2
VR1
4.7k
R32-0752-05
VR2
4.7k
R26
3
390
R32-0752-05
R28
390
TXB
4
W1
DC
13.6V
14V
14V
GND
GND
E37-1224-X5
5
W2
CN6
EXT AT E41-0927-05
E37-1228-X5
1
14AT
AGND
2
6
W3
E37-1228-X5
7
106
X45-378 1/2
B
C21
0.01u
T:13.46V T:4.80V
L1
R16 C19 R22
R13 L39-1483-05
560 2.2 0.01u
Q1
C22
0.01u
T:5.07V
C20
R25
R17
2.2
0.01u 2.2
C5 L14 R1
470u25 L92-0445-05 0.22
2W
VR3
4.7k
R32-0752-05
F53-0328-05
F2
10A
13.50V
SI7445DP-E3
F53-0391-05
4.15V
SURGE
ABSORPTION
SW
Q8
DTC114EKA
F3
4A
CN7
CN8
L30
L31
C
L18
C32
3300p
C33
T:13.29V
3300p
C34
3300p
C35
L2
L39-1257-05
3300p
2.2
Q2
R30
RD16HHF1
DRIVE AMP 5.6 1W
R31
T:13.29V
5.6 1W
C36
3300p
C37
DRIVE AMP
Q3
3300p
RD16HHF1
C38
3300p
C39
3300p
R35
5.6 1W
R36
L15 L16 L17
5.6 1W
L92-0445-05
L19
BIAS CONTROL
T:0.67V
Q6
2SC3421-Q(Y)
D2
L26
4.7u
MA2B027(B)
D1,2
TEMPERATURE
COMPENSATION
D1
MA2B027(B)
F1
5A
SW
Q7
13.49V
L29
L33-1990-05
AVR
IC1
0V
TA7808SQ
4.80V T:13.48V
1
PSC
IN oUT
GND
3
AVR
IC2
TA7808SQ
T:13.49V
1
IN oUT
GND
3
D
FINAL AMP
T:13.51V
Q4
2SC2879A(O,Y)
L4
L39-0480-15
T:0.67V
T:13.51V
Q5
2SC2879A(O,Y)
FINAL AMP
T:0.67V
T:8.08V
T:1.37V R2
4.7
VR4
2W
R32-0752-05
L7
R40
L33-0625-15
390
4.7k
ID-
ID+
TXB
L27
L28
T:8.03V
2
T:8.08V
2
E
L5
L39-1252-15
1200P
C51
0.1u
C4
1000u25
TXB
ID-
ID+
PSC
TH1
TH2
IC-
IC+
14AG
14AF
14V
14S
8A
8D