Sony STR-DE497P - Block Diagram - Power Section

STR-DE497P/K4800P/K5800P
19 19
STR-DE497P/K4800P/K5800P
4-5. BLOCK DIAGRAM — POWER SECTION —
8
12
11
DRIVE
POWER AMP
Q701-704
CURRENT
DETECT
Q705,706
RY791
RY701
RY601
PRE DRIVER
IC701
IN 2
+VOUT2
-VOUT2
SPEAKERS
IMPEDANCE
USE 8-16Ω
R
L
FRONT
L
SURROUND
CENTER
R
R-CH
R-CH
R-CH
FL-CH
FR-CH
SL-CH
C-CH
R-CH
SR-CH R-CH
TUNER/
AUDIO
SECTION
D
RY901
D804
F1
F2
-30V
+3.3V
(STBY)
+2.5V
+5V-1
-7V
+7V
TU+10V
TU+3.3V
-30V
F901
RECT
D910-913
T902
POWER
TRANSFORMER
D914
Q921
D915
D731
D734
D733
~ AC IN
OVERLOAD
DETECT
D740,Q740
1
66
6
5
DRIVE
POWER AMP
Q501-504
CURRENT
DETECT
Q505,506
-30V REG
Q801
RELAY
DRIVER
Q901
PRE DRIVER
IC501
IN+
+VOUT
-VOUT
OVERLOAD
DETECT
D540,Q540
8
12
11
DRIVE
POWER AMP
Q651-654
CURRENT
DETECT
Q655,656
PRE DRIVER
IC702
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D640,Q640
RELAY
DRIVER
Q790
RELAY
DRIVER
Q710
RELAY
DRIVER
Q610
RY501
RELAY
DRIVER
Q510
69
71
67
PROTECTOR
D721,722
Q722,723,725
25
65
48
70
OVERLOAD
DETECT AMP
72
IC601
Q692
Q691
+B
-B
-BB
+3.3V
REG
13
IC1905
BACK-UP
SWITCH
4
5
+3.3V
2
IC1901
+5V-2
+5V
REG
13
IC1503
+10V
REG
13
IC1902
-V
+V
+7V
REG
31
IC801
-7V
REG
23
IC802
+5V
REG
13
IC1903
+3.3V
REG
13
IC1904
R-CH
R-CH
R-CH
-BB +B
-BB +B
-BB +B
R-CH
R-CH R-CH
RECT
D802
RECT
D820-823
T901
POWER
TRANSFORMER
TM601
TM602 (2/2)
TM602 (1/2)
J791
PHONES
HP-RY FRONT-RY REAR-RY CENTER-RY HP DETECT
HP-RY
HP DETECT
FRONT-RY
REAR-RY
CENTER-RY
HEADPHONE
RELAY
PREOUT/FRONT
RELAY
REAR RELAY
PROTECTOR
HP DETECT
POWER RELAY
STOP
CENTER RELAY
DE497P
SYSTEM
CONTROL
IC1601 (4/4)
PRE
DRIVE
PRE
DRIVE
PRE
DRIVE
R810
R812
R910
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
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