TH-A9
1-33
1.Terminal layout
2.Block diagram
STK404-130(IC105) : Power amp
1. Terminal layout
2.Block daiagram
STK404-130
1
13
STK402-230
1
19
R1
TR1 TR2
C1
TR3
TR4
D1
R3
R6
SUB
PT1
TR5
C2
R5
R4
TR6
TR7
TR8
C3
R2
1
2
3
4
5
6
7
8
9
10
11
12
13
GND
IN1
NF
GND
BIAS
+12V
PRE-Vcc
NC
–Vcc
+Vcc
–OUT
+OUT
SUB
R2
TR3
TR1
R1
TR4
C1
R3
TR2
R4
D1
R5
TR5
TR6
R7
TR8
TR7
R6
TR9
TR10
R8
TR11
TR13
R12
TR12
R11
C2
TR14
R13
R20
TR15
TR16
R14
TR23
TR21
C3
R15
TR17
TR18
TR19
R17
TR20
R16
R21
TR24
TR22
R18
R19
R9
R10
4
1
2
8 +Vcc
12
5
9
7
6 10
14 15 16 17
19 18
11
CH1
–
VE
CH1+VE
CH2+VE
CH2NF
CH2IN
CH3IN
CH3NF
CH3
–
VE
CH3+VE
CH2
–
VE
13
PRE+Vcc
CH1IN
CH1NF
PRE–Vcc
BIAS
–Vcc
GND
STK402-230(IC107) : Power amp