Block Diagram - Power Supply Section - Sony STR-DA2800ES Service Manual

5-13. BLOCK DIAGRAM - POWER SUPPLY Section -

DC/DC
D-VIDEO +2.5V CONVERTER
IC3904
DC/DC
D-VIDEO +2V CONVERTER
IC3903
D-VIDEO +4V
D-VIDEO +10V
D-VIDEO EN
UNSW +10V
MTK EN
DD +5.5V
CTRL EN
DD +1.8V
>037B
DD +5V
(Page 52)
DD +12V
DSP/+12V EN
POWER CONTROL
FREC CT
Q1403
MICON_STOP
BRIDGEABLE_RY
PT_STOP
STR-DA2800ES
NET D/A +3.3V
DC/DC
CONVERTER
IC1408
NET A/D +5V
DC/DC
CONVERTER
IC1406
D-AUDIO A/D +5V
DC/DC
CONVERTER
IC1405
VIDEO +3.3V
DC/DC
CONVERTER
+7V
IC1404
RY B+
DC/DC
CONVERTER
IC1403
VIDEO –5V
–7V
DC/DC
CONVERTER
IC1402
AMP B+
DC/DC
AMP B–
CONVERTER
IC1410
AC VOLTAGE
DETECT DETECT
Q6204 IC1407
+3.3V
STBY +3.3V REGULATOR
IC2701
STBY +5V
+3.3V
REGULATOR
IC908
+5V
REGULATOR
IC907
+5V
REGULATOR
IC1421
+3.3V
REGULATOR
IC6015
+7V
REGULATOR
IC303
RECT
D314 – 317
–5V
REGULATOR
IC6017
–7V
REGULATOR
IC302
RECT
D313
RELAY DRIVE
Q312
RECT
D1402
AC OFF
DETECT
Q1402
+5V
REGULATOR
REGULATOR
Q53 – 55
IC51
D51 D61
DD +12V
SHUNT
REGULATOR
IC923
55 55
T901
MAIN POWER
TRANSFORMER
F303
F301
F300
-1
F302
-2
RY307
F1402
D1409 D1410
RELAY DRIVE
Q52
RY01
F001
F901
T903
SUB POWER
RECT
TRANSFO RMER
D901
TH902
RECT
D947
POWER CONTROL
D902
1 D
REGULATOR
3 Vcc/OCP
Q922
DZ903
6 BD
ISOLATOR
5 FB/OLP
PC902
STR-DA2800ES
NET_POW_RY >030B
(Page 51)
D2721
>038B
POW-RY
(Page 52)
AC1
- AC IN
IC921