9-4
Power Supply Block Diagram
PL10.8BLP
LCD MODULE
ASSEMBLY
TO SYSTEM
CONTROL
BLOCK
DIAGRAM
(CN3002)
HOT COLD
HOT CIRCUIT. BE CAREFUL.
CN1
1
3
AC601
AC CORD
AC
INLET
LINE
FILTER
FL1
T901
L800B
POWER SUPPLY CBA UNIT
CN4
CN2
F1
5A/250V
10
6
9
5
7
2
7
5
3
4
2
1
1,2
1,2
7,8
7,8
5,6
5,6
4
4
2
1
4
T601
IN
EN
OUT
2
14
3 2
Q801B
SWITCHING
Q801A
VCC
SWITCHING
(FEED BACK)
Q910
Q210
SCR210
PC901
Q904
1
4
3 2
(ISOLATOR)
PC902
Q905
Q601A
SWITCHING
Q601B
CT601
SCR601
SWITCHING
(FEED BACK)
IC801
(SWITCHING CONTROL)
IC901
(SWITCHING CONTROL)
IC902
(LINEAR REGULATOR)
IC601
(HIGH-VOLTAGE
RESONANT CONTROL)
SWITCHING
CONTROL
Q902
Q903
7
11
11612
14
L800A
SWITCHING
CONTROL
HIGH-
VOLTAGE
RESONANT
CONTROL
8
14
11
12
6
8
15
4
3
1
2
5
14
12
7
10
9
6
13
11
8
5
9
14
3 2
PC601
Q802
Q800
PANEL+24V1-5
CN5
PANEL+24V1-5
AL+5V9
P-ON-H1
12
P-ON+12V
1-4
BACKLIGHT-ADJ
14
BACKLIGHT-SW
12
BACKLIGHT-ADJ
10
BACKLIGHT-SW
14
LINE
FILTER
FL2
BRIDGE
RECTIFIER
BD1
4
3
1
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
For continued protection against risk of fire,
replace only with same type 5 A, 250V fuse.
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 5A, 250V.
5A/250V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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