HBD-E770W
HBD-E770W
33
33
5-6. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -
S10
SYSTEM CONTROLLER
IC501 (4/4)
ND800
FLUORESCENT
INDICATOR
TUBE
GRID DRIVE
Q804
FLUORESCENT
INDICATOR
TUBE DRIVER
IC802
S-AIR ID
A
t
B
t
C
KEY2
POWER CONTROL
IC921
D902
DZ903
D908
D906, 907
+32.5V
(AC IN)
F901
EN. P
LINE
FILTER
LF901, 902
RECT
D901
TH901
POWER CONTROL
IC901
D508
D506
RIPPLE FILTER
Q922
ISOLATOR
PC902
ISOLATOR
PC901
ISOLATOR
PC903
B+ SWICH
Q901
T903
SUB POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
D910
RECT
D931
MAIN POWER
ON/OFF SWITCH
Q943
MAIN POWER
ON/OFF SWITCH
Q949, 950
VOLTAGE
DETECT
Q969
RECT
D943
T800
DC/DC CONVERTER
TRANSFORMER
VEE
OSC
Q803
E +4V
RECT
D942
E +6V
E -9V
RECT
D954
E +14V
RESET
SWITCH
Q504
X500
6MHz
D800
(ILLUMINATION)
LED DRIVE
Q801
S700 - 705, 750
KEY0
3
16
10
RECT
D955
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299