High Efficiency Application Circuit; Pcb And Component Layout - Onkyo HTP-420 Service Manual

Figure 6: High Efficiency Application Circuit
+50V
+25V
R20 C1 C3 C5
20K 1000µF 100nF 1000µF
63V 35V
GND
R21 C2 C4 C6
20K 1000µF 100nF 1000µF
63V 35V
-25V
-50V
Figure 6a: PCB and Component Layout of the fig. 6
D6
1N4001
D1 BYW98100
C12 330nF
C7 C9 IN
100nF 330nF
R22 R1
10K 2
PLAY
C13 10µF
ST-BY
R23 R2 R14 30K
D5
10K 2
1N4148
C8 C10
100nF 330nF
D2 BYW98100
D7
1N4001
T1
BDX53A
R17 270
L1 1µH
7 13
3
R12 2
13K
4
TDA7293
14
9 6
R13 20K
1
12
R15 10K
8 15
10
C14
10µF
L2 1µH
R19 270
T2
BDX54A
TDA7293
T3
BC394
R4 R5
270 270
T4 T5
BC393 BC393
D3 1N4148
R6
20K
Z1 3.9V
C11 22µF
R3 680
R7
3.3K 1.8nF
R16 L3 5µH
13K
R18 270
C15
R8
22µF
3.3K 1.8nF
Z2 3.9V
D4 1N4148
T7 T8
BC394 BC394
R9 R10 R11
270 270 20K
T6
BC393
D97AU807C
C16
OUT
P
ot
C17
9/15