Daewoo DTD-21H9, Service Manual, Page: 28 / 46

CP-093F Service Manual
Full bridge vertical deflection output circuit
in LVDMOS
TDA8357J
book, full pagewidth
V
P
= 12 V
V
FB
= 29 V
deflection coil 8.82 mH 7.9
Ω
(W66ESF)
R
M
1.5
Ω
R
D1
330
Ω
R
CMP
270 k
Ω
TV SIGNAL
PROCESSOR
C6
2.2 nF
C7
2.2 nF
C
D
47 nF
C3
100
nF
D5
12 V
C1
47
µ
F
(100 V)
C4
100 nF
C2
220
µ
F
(25 V)
R
D2
1.5
Ω
2
1
INA INB
FEEDB
GUARD
R
GRD
12 k
Ω
R
CV1
2.2 k
Ω
(1%)
R
CV2
2.2 k
Ω
(1%)
R
S
2.7 k
Ω
MGS807
INPUT
AND
FEEDBACK
CIRCUIT
GUARD
CIRCUIT
TDA8357J
9 7 4
5
86
3
GND
V
P
V
FB
OUTB OUTA
V
i(p-p)
V
I(bias)
0
V
I(bias)
V
i(p-p)
0
M2
M5
M4 M1 M3
D1
D3
D2
Fig.4 Application diagram.
f
vert
=
50
Hz; t
FB
=
640
µ
s; I
I(bias)
=
400
µ
A; I
i(p-p)
=
475
µ
A; I
o(p-p)
=
1.4
A.
27