SS-US501/SW-US501/UZ-US501
10
10
5-2.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
(AC IN)
RECT
D992 – 995
T902
SUB POWER
TRANSFORMER
+5.6V
REGULATOR
IC991
RESET SIGNAL
GENETATOR
IC803
RESET
SWITCH
Q804
RY992
RELAY DRIVE
Q992
RY991
RELAY DRIVE
Q991
F901
LINE FILTER
LF901(EXCEPT US),
LF902
RECT
D902
TH901
3
POWER CONTROL
IC901
D
4 VCC
1 FB/OCP
D906
D907
D905
+20V
REGULATOR
Q901
ISOLATOR
PC901
SWITCHING
IC902
T901
MAIN POWER
TRANSFORMER
(US)
(EXCEPT US)
+3.3V
REGULATOR
IC804
D821
D +3.3V
D822
µ
COM +3.3V
µ
COM +5V
LED B+
D811, 812
D802, 803
RECT
D911
RECT
D920
RECT
D909
B+ SWITCH
Q451, 452
+10V
REGULATOR
Q453
FAN401
(FAN)
M
B+ SWITCH
Q904, 905
AU +15V
AUDIO +5V
POWER/SURROUND AMP
(IC401, 402) B+
+5V
REGULATOR
IC906
POWER ON/OFF
CONTROL SWITCH
Q902, 906
IC903
(US)
RECT
D914
MUTING
CONTROL SWITCH
Q915
(EXCEPT US)
+5V
REGULATOR
IC905
+2.5V
+2.5V
REGULATOR
IC807
READY +3.3V
READY +5V
+3.3V
REGULATOR
IC806
USB +3.3V
+3.3V
REGULATOR
IC506
B+ SWITCH
Q910, 911
(US)
B+ SWITCH
Q907, 908
(EXCEPT US)
D813
D702, 703
(LCD BACK LIGHT)
( US)
D946
46
P-CONT
62
READY-H
39
X1
38
X2
X801
16MHz
34
90
STOP
RESET
S701 – 705
KEY ACTIVE
SWITCH
Q801, 803
82 KEY1
93 INT
91 SIRCS
83 V/R
D806
SIRCS BUFFER
Q802
REMOTE CONTROL
RECEIVER
IC702
67 APC LED
LED DRIVE
Q702
D705
AUTO POWER
73 STAND BY LED
LED DRIVE
Q705
D707
(STANDBY)
71 POWER LED
LED DRIVE
Q703
D706
(POWER ON)
54 LCD-DATA
8
SD
53 LCD-CLK
7
SCK
56 LCD-CS
9
CS
35 LCD-C/D
10
C/D
11 – 14
COM0 – COM3
15 – 32
SEG0 – SEG17
LCD701
LIQUID
CRYSTAL
DISPLAY
LIQUID CRYSTAL
DISPLAY DRIVER
IC701
SYSTEM CONTROLLER
IC802 (2/2)
D
(Page 9)
STANDBY
B
(Page 9)
MTR CTL
C
(Page 9)
AMP MUTING
(EXCEPT US)
A
(Page 9)
HP MUTING