Schematic Diagram - Main Board (3/3) - Sony STR-DH800 Service Manual

Q Q
3 7 6 3 1 5 1 5 0

5-15. SCHEMATIC DIAGRAM - MAIN Board (3/3) -

1 2
MAIN BOARD (3/3)
A
C01
C02
12
C03
C04
MAIN
BOARD
C05
(1/3)
C06
B (Page 25)
C07
C08
13
GND
MAIN
BOARD
(1/3)
R437
C (Page 25)
2.2k
R440
47k
14
0.8
GND
Q425
MAIN
2SC3052EF-T1-LEF
0.3
BOARD
RELAY DRIVE
(2/3)
D425
(Page 26)
D
MA2J1110GLS0
RY425
T E
L 1 3 9 4 2 2 9 6 5 1 3
E
GND
B02
15
B03
MAIN
+15V
BOARD
(2/3)
F
(Page 26)
A26
A27
(AEP, UK)
G
C699 C507
1000p 0.01
R507
10
H
w w w
- +
(CHASSIS)
I
R
SURROUND BACK/
BI-AMP/FRONT B
TB502
STR-DH800
3 4 5
R438 R430 R425
33 33 1k
R432 R428
47k 47k
R429
1k
0.8 0.8
Q423 Q422
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
0.2 0.2
RELAY DRIVE RELAY DRIVE
D423 D422
MA2J1110GLS0 MA2J1110GLS0
RY423 RY422
-1 -1
-2 -2
C503 C502
0.01 0.01
R503 R502
10 10
C508 C506 C504 C505
0.01 0.01 0.01 0.01
R508 R506 R504 R505
10 10 10 10
- + - x + a o + - + - + -
y
L CENTER R L L
. i
SURROUND FRPNT A
TB503 TB500
SPEAKERS
http://www.xiaoyu163.com
6 7
R456
680
2W
R455
680
2W
D451
MA2J1110GLS0
14.8
0
Q451
2SC3052EF-T1-LEF R454
47k
RELAY DRIVE
R426 C403
R434
33 33 2200
25V
R436 R433
47k 2.2k
0.8
Q424
2SC3052EF-T1-LEF
0.2
RELAY DRIVE
D424
MA2J1110GLS0
CL401
RY424
Q Q
3 7 6
-1
-2
~
~
C408
0.01F
71V D5SBA20-4003
C409 C407
0.01F 0.22
71V 100V
C697
1000p
C698 C700
1000p 1000p
+ - u 1 6 3
(CHASSIS) (CHASSIS) (CHASSIS)
R
27 27
2 4
8 9 9
8 9 10
-2
-1
RY451
R453
R451
47
2.2k
D401
1SR154-400TE-25
D402
1SR154-400TE-25
F401
2A
D404 250V
1SR154-400TE-25
C402 C401
0.1 0.1
C404
1000
25V F402
2A
250V
3 1 5 1 5 0 8 9
D403
1SR154-400TE-25
R409
2.2k
F403
T6.3AL 250V
FH001 FH002
D407
RY406
-2
C406
F404
0.22
T6.3AL 250V
100V
FH003 FH004
-1
0.8
R406
33
0.2
D406 Q406
MA2J1110GLS0 2SC3052EF-T1-LEF
RELAY DRIVE
m
c o
.
STR-DH800
2
8 9 9
11 12
NO552
5P
1 HP DETECT
M
2 NC
3 R-CH
HP
BOARD
4 GND
CNP300
5 L-CH
(Page 39)
CN553
3P
N
1 R2 AC
2 R2 CENTER TAP
MAIN POWER
TRANSFORMER
3 R2 AC
T901
(Page 41)
2 4 9 8 2 9 9
NO551
8P
8 BRIDGEABLE RY
7
SBL/SBR/BIAMP_RY
F
6
FRONT_A RY
5 SW_SPK_PREOUT
DIGITAL
4
C/SURR RY
BOARD
(3/4)
3 HP_RY
CN2008
2
NC (Page 22)
1
HP_DET
CN554
5P
R1 (UPPER TAP)
P
R1 (LOWER TAP)
R1 GND
MAIN POWER
TRANSFORMER
R1 (LOWER TAP)
T901
R1 (UPPER TAP)
(Page 41)
R408
47k