Power Section - Sony RHT-G2000 Service Manual

RHT-G2000

–POWER SECTION–

DC/DC
CONVERTER
T801
F1
F2
TO FLUORESCENT
RECT
INDICATOR TUBE
VFL
D801,802
D804,805
IC509 (3/3)
SYSTEM CONTROLLER
P CONT2 44
P CONT1 40
AC_CUT 20
RESET 12
RHT-G2000
+31.5V
+5V
OSC
Q801
IC207
+3.3V
+3.3V REG
Q506
IC511
RESET
TRANSFORMER(MAIN)
D931
IC931
VOLTAGE
DETECT
PC901
PHOTO
COUPLER
E4V
Q943,947
PC903
POWER
PHOTO
CONTROL
COUPLER
+12V
IC515 IC941
+9V
+9V REG +12V REG
Q945
IC516
+5V
+8V
+5V REG
SWITCH
IC942
+5V
+5V REG
IC943
+3.3V
+3.3V REG
IC303
+1.8V
+1.8V REG
IC508
+1.8V
+1.8V REG
AMP +3.3V
12 12
T901
IC901
D905
Q901 AC/DC
POWER CONVERTER
ON/OFF
T902
TRANSFORMER (SUB)
D941
IC921
Q921
D922
AC/DC
REG
CONVERTER
D944
D942
E 4V
D943
IC951
VOLTAGE
DETECT
E 4V
PC902
PHOTO
COUPLER
D901
AC IN