Sony STR-DA1200ES - Block Diagram - POWER SUPPLY Section

STR-DA1200ES
2929
STR-DA1200ES
6-8. BLOCK DIAGRAM – POWER SUPPLY Section –
F1405
RECT
D1409
+6.5V
REGULATOR
IC1403
REGULATOR
CONTROL
Q1409
Q1410
T01
MAIN POWER
TRANSFORMER
T02
SUB POWER
TRANSFORMER
STBY +5V
D +6.5V
D +3.3V
STOP
POWER
SWITCHING
Q55, 56
V-POW
5
18
13
RY01
D56, 57
D51
RELAY DRIVE
Q52
POW-RY
AC OUTLET
J02
AC IN
J01
D61
TU +12V
RECT
D52 – 55
10
POWER KEY
17
B+ SWITCH
Q54
+5V
REGULATOR
IC51
+3.3V
REGULATOR
IC1405
D +2.5V
+2.5V
REGULATOR
Q5211
TU +3.3V
+3.3V
REGULATOR
IC2050
TU +9V
+9V
REGULATOR
IC2052
+12V
REGULATOR
IC1404
RY +24V
STBY +3.3V
+3.3V
REGULATOR
IC2053
AC DETECT
Q51
(AEP)
F02F01
F1404
RECT
D1405 – 1408
–15V
REGULATOR
IC1402
A –15V
F1403
RECT
D1401
RECT
D1411
+15V
REGULATOR
IC1401
A +15V
A –5V
–5V
REGULATOR
IC1407
B– SWITCH
Q1404
A +9V
+9V
REGULATOR
IC1408
B+ SWITCH
Q1406, 1408
A +5V
+5V
REGULATOR
IC1406
AMP B+
AMP B–
TEMPERETURE
SENSOR
IC1903
TEMP
PROTECT
LIMITTER
PROTECT
TEMPERETURE
SENSOR
IC1905
LIMITTER
DETECT
Q1910, 1911
LIMITTER
DETECT
Q1912, 1913
MIC +3.3V
+3.3V
REGULATOR
IC702
LIMITTER +5V
+5V
REGULATOR
IC1904
LIMITTER
IC1902
RELAY DRIVE
Q1401
PRE DRIVE B–
LIMITTER
DETECT
Q1901 – 1903
RY1402
SW1
(2/2)
POWER
(Page 23)
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(Page 22)
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