Figure 18 Class-D 60W / 120W Audio Amplifier Board Layout; Figure 19 60W / 120W Audio Amplifier Photos; Table 6 Ows 60/120W Amplifier Specifications - Panasonic Firetracker FT1020G3 CIE Technical And Programming Manual

Figure 18 Class-D 60W / 120W Audio Amplifier Board Layout

Table 6 OWS 60/120W amplifier specifications

Function
Voltage input range
Fuse rating
Low voltage shutdown
Audio input impedance
Output load
Amplifier quiescent Current
Total OWS quiescent current)
Total OWS active current – full load
42
Current measured at 27V supply
C30
D14
L1
Q 2 Q 1
Q 8 D8 Q 6 D6 Q 9 D9 Q 7 D7
C18 Q 12 C15 Q 11 C19 Q 14 C17 Q 13
C6 C3 C9 C29
R5 R4 R7 R6
D2 D3 D5 D4
R49 R45 R53 R48
R15 R12
U2 U3
C37
C20 C36
R8
Q 18
C34
C12
R60 Q 19
U6 U1
C8
Q 17
R59 R2
R57 R55 R58 C10 R41 R38 R42 R40
R54 R56 C11 C35 R43 C23
R37
C25
BR O O K S AU STR ALI A
SU B865/ SU B 866
PC B218R 1
C A LIB ER A TIO N
(FA C TO R Y U SE O N LY)
60 Watt

Figure 19 60W / 120W Audio amplifier photos

42
42
42
43
Technical/Programming Manual
TO SPEA K ER /
1 0 0 V A U D IO TR A N SFO R MER
C31
POW ER
IN PU T
L2
FU SE
Q 4 Q 3
C1 C7
Z1 R32
Q 16 Q 15
R34 R33
C21 R31
C33
U4
R13 R51
Q 20 R10
C4
C2
R3
D1
STA N D B Y
R1 C5
A U D IO
R9 C13
VR2 VR1
IN PU T
C24 R16
C22
CA L .
V OL UM E
VOLU ME A D J U C TMEN T
120 Watt
60W version
20 to 32V
DC
5 A (blade fuse)
15 V (approx)
10 kΩ
4 Ω
40 mA
118 mA
2.8 A
FT1020G3 Rev 2.2.1
120W version
7.5 A (blade fuse)
2 Ω
119 mA
5.17 A