Onkyo HTP-420

IN- 2
R2
680Ω
C2
22µF
C1 470nF
IN+
R1 22K
3
R3 22K
-
+
MUTE
STBY
4
10
9
SGND
MUTE
STBY
R4 22K
THERMAL
SHUTDOWN
S/C
PROTECTION
R5 10K
C3 10µF
C4 10µF
1
STBY-GND
C5
47µF
713
14
6
158
-Vs -PWVs
BOOTSTRAP
OUT
+PWVs+Vs
C9 100nF C8 1000µF
-Vs
D97AU808D
+Vs
C7 100nF C6 1000µF
BUFFER
DRIVER
11
BOOT
LOADER
12
IN- 2
IN+ 3
-
+
MUTE
STBY
4
10
9
SGND
MUTE
THERMAL
SHUTDOWN
S/C
PROTECTION
1
STBY-GND
713
14
6
158
-Vs -PWVs
BOOTSTRAP
OUT
+PWVs+Vs
C9 100nF C8 1000µF
-Vs
+Vs
C7 100nF C6 1000µF
BUFFER
DRIVER
11
BOOT
LOADER
12
5
CLIP DET
5
MASTER
SLAVE
C10
100nF
R7
2Ω
VMUTE
VSTBY
STBY
Figure 7: Modular Application Circuit
Figure 6b: PCB - Solder Side of the fig. 6.
TDA7293
10/15