Sony STR-DB795 - BLOCK DIAGRAM - POWER SUPPLY Section

STR-DB795
2222
STR-DB795
6-6. BLOCK DIAGRAM – POWER SUPPLY Section –
+5V
REGULATOR
Q824
+5V
+10V
REGULATOR
IC1902
TUNER +10V
+3.3V
REGULATOR
IC1905
TUNER +3.3V
+5V
REGULATOR
IC1403
A+5V
+5V
REGULATOR
IC952
V+5V
+3.3V
REGULATOR
IC1903
+3.3V/+2.5V
REGULATOR
IC1901
+3.3V
D+3.3V
+3.3V
REGULATOR
IC1904
RECT
D54 – 57
D52
D53
T2
SUB POWER
TRANSFORMER
SYSTEM CONTROLLER
IC1703 (6/6)
AC POWER
DETECT
Q54
–5V
REGULATOR
IC951
V–5V
F1
F2
FLUORESCENT
INDICATOR TUBE
(FL1603)
–18V
BIAS
B–
BIAS
B+
– 15V
+15V
+15V
REGULATOR
IC955
-2
-1
8Ω
4Ω
IMPEDANCE
SELECTOR
S901
T901
MAIN POWER
TRANSFORMER
42D.POWER
119LIMITTER,OUT
43V.POWER
55RSTX
60STOP
1PW RY
8SUB T
B+ SWITCH
Q956, 957
STBY +3.3V
RESET SIGNAL
GENERATOR
IC1602
+5V
REGULATOR
IC953
RECT
D908
F904
F903
F906
F905
RECT
D914
F1
RELAY
DRIVE
Q51
RY1
(AC IN)
B+ SWITCH
Q958, 959
(AEP, UK)
Singapore
Malaysia models
EXCEPT
Singapore
Malaysia models
D909
B– SWITCH
Q953 – 955
+2.5V
D+5V
–18V
REGULATOR
Q903
RECT
D912, 913,
915, 916
LIMITER SWITCH
Q2601, 2603
THERMAL DETECT
Q960 – 962
LIMITER SWITCH
Q2602
B–
+24V (RY)
B+
– 15V
REGULATOR
IC954
RECT
D903 – 906
B+ SWITCH
Q52, 53
RECT
D58
EXCEPT
Singapore
Malaysia models