Block Diagram - Power Supply Section - Sony ICF-DVD57TV Service Manual

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