ICF-DVD57TV
26
26
ICF-DVD57TV
6-5. BLOCK DIAGRAM – POWER SUPPLY Section –
+12V
POWER AMP
B+
MAIN
µ
-COM +3.3V
LED +3.3V
+5V
TV +9V
+9V
DVD +5V
D651 – 653
(LCD BACK LIGHT)
RESET SIGNAL
GENERATOR
IC402
76
XRESET
49
AC IN
62
MONITOR ON
77
RADIO ON
MAIN SYSTEM CONTROLLER
IC401 (3/3)
D402
D401
+5.4V
MOTOR DRIVER
B+
D351
+6V
RADIO/VT
B+
+6V REGULATOR
Q912, 915, 920 – 922
+5V REGULATOR
Q911, 914, 919, 923, 924
RADIO ON
SWITCH
Q402
RECT
D905, 906
RECT
D902
T901
POWER
TRANSFORMER
(AC IN)
C
ANT
F902
RECT
D901
B+ SWITCH
Q901, 904
F901
SUB
µ
-COM +3.3V
D1402
+3.9V
REGULATOR
IC904
+9V
REGULATOR
IC902
+5V
REGULATOR
IC901
B+ SWITCH
Q1902, 1904
B+ SWITCH
Q905, 906
SWITCHING
Q902
SWITCHING
Q903
DEAD TIME
Q917
DEAD TIME
Q910
REGULATOR
CONTROL
Q913, 918
SWITCHING
REGULATOR
Q916
F904
REGULATOR
CONTROL
Q907, 909
SWITCHING
REGULATOR
Q908
DC/DC
CONVERTER
Q1901, 1903
F903
F1901
F1801
D924, 925
D914, 915
D911
D913
TEMPERATURE
DETECT
IC951
TH901
TEMPERATURE
DETECT
IC952
TH902
+3.3V
REGULATOR
IC903
+1.8V
REGULATOR
IC701
DVD +1.8V
TV +5V
DVD +3.3V
+3.3V
REGULATOR
IC703
VIDEO DAC +3.3V
+3.3V
REGULATOR
IC702
PLL/RF +3.3V
+
VCC
9
D1905
VSS–13V
DC/DC
CONVERTER
T1901
D1904
VGH+17V
D1903
VCC+7.5V
D1902
VEE+5V
D1901
VDD+3.3V
INVERTER
TRANSFORMER
T1801
10 OUT2
11 DT2
7 OUT1
6 DT1
15
SCP
POWER CONTROL
IC905
3
7
NON1
OUT1
2 RT
15 SCP
5V VOLTAGE
RV1901
FREQUENCY
RV1902
POWER CONTROL
IC1901
8
7
OUTL
BATT
14
BATT
LCD BACK LIGHT
CONTROL
IC1801
41
SPC-DET
59
8V_SW
60
TFT-ON
SUB SYSTEM CONTROLLER
IC1401 (2/2)
13 OUTR
2 IL
5 EN
LIQUID CRYSTAL
DISPLAY MODULE
LCD1 (2/2)
(BACK LIGHT)
: FM
SIGNAL PATH
(Page 23)