Block Diagram - Power Supply Section - Sony STR-DA1000ES Service Manual

STR-DA1000ES/DB790
Ver 1.3
6-6. BLOCK DIAGRAM – POWER SUPPLY Section –
+5V
TUNER +10V
TUNER +3.3V REGULATOR
(DB790: AEP, UK)
A+5V
V+5V REGULATOR
+3.3V/+2.5V
+3.3V
REGULATOR
+2.5V
LIMITTER 47
D+3.3V REGULATOR
D-POWER 24
V-POWER 26
SYSTEM CONTROLLER
IC1601 (6/6)
STBY +3.3V
RESET SIGNAL
RSTX 77 GENERATOR
IC1602
STOP 48
POWER RELAY 66
+5V
REGULATOR
Q824
BIAS
LIMITER SWITCH
B–
Q2602
+3.3V +10V
BIAS
LIMITER SWITCH
REGULATOR
B+ Q2601, 2603
IC1905 IC1902
+5V +15V
REGULATOR REGULATOR
IC1403 IC955
(DB790)
THERMAL DETECT
+15V
Q960 – 962
– 15V
– 15V REGULATOR
IC954
–28V
–28V REGULATOR
Q903
+5V
B+ SWITCH
Q956, 957
IC952
D+5V
IC1901
+3.3V +5V
B+ SWITCH
REGULATOR
Q958, 959
IC1903 IC953
–5V
V–5V REGULATOR
IC951
D909
+3.3V
REGULATOR
IC1904
24 24
S901
IMPEDANCE
SELECTOR
8Ω
T901
MAIN POWER
TRANSFORMER
4Ω
-1
B–
RECT
D914
-2
B+
+24V (RY)
RECT
D903 – 906
THP901
F1
FLUORESCENT
INDICATOR TUBE
(FL1603) F2
RECT
D912, 913,
915, 916
F903
RECT
D908
F904
B– SWITCH
Q953 – 955
T2
SUB POWER
TRANSFORMER
D52
B+ SWITCH
RECT
Q52, 53, 55
D54 – 57
D53
AC POWER
DETECT
Q54
(DA1000ES/DB790: SP, MY, TW)
CNJ1 • Abbrivation
AC OUTLET MY : Malaysia model
SP : Singapore model
TW : Taiwan model
(DB790: TW) (DA1000ES/DB790: SP, MY)
F2
F1
(AC IN)
RY1
RELAY
DRIVE
Q51