Block Diagram -Power Section - Sony STR-DE525 Service Manual

3-3. BLOCK DIAGRAM –POWER SECTION–
POWER AMP(L)
+B 13 VCC
14
-B 15
L 6
1
POWER AMP(C/W)
+B 13 VCC
14 VCC
-B 15
C 8
W 6
A
MAIN
SECTION
POWER AMP(SL)
+B 13 VCC
14
-B 15
SL 6
1
MUTE
Q691,692
B
P RY
MAIN
SECTION
8
12 X1
X101
4.19MHz
11 X2
16
33 32 31
S101 S112 S113 S123 S124
UP DOWN DISPLAY LEFT RIGHT
D116
FUNCTION FUNCTION FUNCTION
KEY KEY KEY
S102-107 S114-121 S125-131,148
S109-111,133 S145-147
IC601
BOOSTER
VCC +VE 2
Q506
VEE
LIMITER
Q504
IN NF 5
LIMITER
Q505
PROTECTOR
MUT
Q509,510
BOOSTER CUR DET
-VE 3
Q507 Q508
IC001
BOOSTER
+VE 12
Q606
VEE
LIMITER
Q604
IN
NF 9
IN
LIMITER
Q605
PROTECTOR
Q609,610
BOOSTER CUR DET
-VE 11
Q607 Q608
+VE 2
-VE 3
IC701
BOOSTER
VCC +VE 2
Q706
VEE
LIMITER
Q704
IN NF 5
LIMITER
Q705
MUT
BOOSTER CUR DET
-VE 3
Q707 Q708
PROTECTOR
Q547-549
47
SYSTEM CONTROL/
MODE CONTROL
IC103(2/2)
30 56 61 60 62 57 5 64
S135-142
FUNCTION
KEY LED DRIVE
Q103,104 Q103,104
S134 S134 S144 S151
MUTING SET UP POWER
CUR
MODE
D115-113 D135,111 D132,133
— 11 —
RY602
RELAY
DRIVE
Q601
S155
Q511
SPEAKERS
A+B
RY501
OFF
RELAY
DRIVE
A
Q546
B
RY502
RELAY
DRIVE
Q596
RY601
Q611
RELAY
DRIVE
Q645
RY503
RELAY
DRIVE
Q544
RY701
RELAY
DRIVE
Q749
+B
-B
SWITCH
Q612,615
S501
8
IMPEDANCE
SELECTOR
4
44 50 43 45 42
POWER RY 48
SIRCS 26
RESET
RESET 10
Q101
P1 17 G1 12
71 78 . 80 88 100 89
7 63 66 67 65 39
FL101
FL TIBU
F2 F1
D134,137,138 D139
J701
R CH
PHONS
L
TM501
FRONT
SPEAKER
R
R CH
C
TM701
S(L)
SURROUND
SPEAKER
S(R)
R CH
J501
WOOFER
CNJ701
R CH
WIRELESS
REAR
SPEAKER
IC702
+18V SWITCH
3 1
REG Q747,748
SWITCH
Q614,618
SWITCH INV SW
Q613,616 Q617
+24V
IC809 IC809
+5V
1 3
REG
-24V
+15V
REG
+12V
IC801 Q801
IC450 IC451
+5V +12V +15V
+5V 1 3 1 3 1 3 -30V
REG REG REG
IC803
-15V
3 1
-5V
REG
RELAY
DRIVE
IC101
Q901
Q105
REMOTO
CONTROL
RECEIVER
DELAY
Q102
+5.6V +B SW
Q902
T902
D901-904
3
POWER
8 CONT 5
IC901
6
— 12 —
STR-DE525/V515
• RCH is omitted
• Signal Path
:FM
:CD (ANALOG)
E, EA, PX MODEL
T901
120V
0V
120V
120V
240V
100V
0V 220V
120V
240V
F801
D801
220V
120V
F802
240V
220V
F803
D802-805
EXCEPT
F804
E, EA, PX
MODEL
D806 F2
F1
E, EA, PX
MODEL
F901
AUS, MY,
SP, CH
RY901
F904
MODEL
CNJ901
F903
AUS, MY,
SP, CH
EXCEPT
MODEL
E, EA, PX CNJ901
MODEL
EXCEPT
AUS, MY,
JW901 JW925
SP, CH
MODEL
JW902 CNP901
AC IN
E, EA, PX
MODEL