Changhong Electric PF29T18 Service Manual page 39

(3) Block Diagram
V
i(p-p)
V i(bias)
0
V
i(p-p)
V
i(bias)
0
SERVICE MANUAL
GUARD
8
GUARD
CIRCUIT
1
INA
INPUT
AND
FEED
BACK
CIRCUIT
INB
2
37
V V
P
3
D3
M2
D1
M4
M1
M3
TDA8359J
5
GND
Fig. 21
FB
6
M5
D2
OUTA
7
9
FEEDB
4 OUTB