Sanyo Vizon DP32746 Service Manual page 28

BLOCK DIAGRAM POWER BOARD
AC
Fuse Varistor
F601 VA611
K601 (1, 2)
R609 RL670
Rush Current
Control
(Thermistor)
AC Rectify
D1606/D1617
4
D1618
6
DC
Oscillation
7 9
IC1602
1 2
Power SW
Regulation
Voltage Information
Power On/Off
D607/D608
RL601
STB_5V
Power ON
Q602
D603
Display Power Supply
AC Rectify
(Diode Bridge)
(Main Board, LCD Module)
D602
Q642
8
5
2
14
Oscillation
8
IC603
4
12
4
Regulation
Voltage Information
Q605
Line Filter
LF641
Varistor
VA612
LF642
Line Filter
Power ON
Q670
A13V
DTV & Standby Power Supply
T1606
RL1603
9
2
11
2
8
D1629
7
IC1604
2
4
D1621
STB_5V
1
1
4
D1622
Q1609/1611
2
4
STB_5V
1
D604
3
Q603/604
T605
D627
11
2
13
D624
14
2
17
IC671
2
4
D605
1
2
4
D606
1
STB_5V
— 28 —
Surge Absorber
SC611
Power ON
Q1610
STB_5V
DTV_6V
D1623
STB_5V
D1633
1
Power ON
3
LINE OFF
P_24V
1
3
Q606
K6R
1, 2
7
4, 5
K6P
H:On
8
L:Off
6 H:Line
Off
K6Q
A13V
1, 2
K6C
1, 2, 3, 4, 5
To LCD Module
To Main
(K8R)
To Main
(K8P)
To Main
(K8Q)