Schematic Diagrams-7 (Sd - Onkyo TX-SR876 Service Manual

A B

SCHEMATIC DIAGRAMS-7 (SD-7)

SP TERMINAL SECTION
NATRM-9055
SP TERMINAL PC BOARD
U11
1
F9101
4A D3SBA20
D9105
F9102
4A
P9104
1
2
3
R9112
4
0.22(1/2W)
5
6
D10XB60H
D9103
2
DC, DD Type only F9201
2.5A
4
F9202
2.5A
P9201
1
3 2
3
4
5
<Note>
SD-x:XY is short for Shcematic Diagram-x and
4
each socket's location, X=A to H, Y=1 to 5.
NOTE
THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
5
C
2SB1565-E
Q4901
0.22(1/2W)
R4901
+14.4V
Q4905
2SK365-GR
Q4906 2SK365-GR
JL4014A
+15V 6
-14.4V
-15V 5
R4902 GND 4
Q4902
0.22(1/2W) GND 3
RLGND 2
2SD2394-E
+12V 1
+13.5V
GND 1
+12VTRG 2
GND 3
JL2601A
Q9103, C9107: Q9103
TX-SR876 Only NJM2388F09
+9.0V
J9108
C9106
J9107
J9106 1/50
C9106:
MP,MB,MT,DT Only
D3SBA20
D9201
2
1 +9V_HD 1
GNDHD 2
+3.3V_HD
3 3
+1.2V_HD 4
R9203 +3.3V
1(1/2W)
+1.2V P5A
R9211 R9212 R9213 R9214
0.39(1/2W) 0.39(1/2W)
0.39(1/2W) 0.39(1/2W)
SPRLZ2
SPRLSB
SPRLCS
SPRLF
GNDTU
16 +9VTU
15 POFF2
14 +9V
13 GNDDG
12 +5.3VXM
11 DIGSDI
10 DIGSDO
9 DIGCLK
8
DAC2CS
7 DAC1CS
6 DACRST
5 DACCR
4 DACSWR
3 DACSBL
2 DACSBR
1 DACFL
14 DACFR
13 DACC
12 DACSW
11 DACSL
10 DACSR
9 GNDA
8 GNDA
7 ADL
6 ADR
5 SPDIFSW
4 MEQMUT
3 RI
2 -15VDG
1 +15VDG
24 HDPCMSW
23 DSDRCSW
22 DIRSW
21 DSDDISW
20 DSP1DEC
19 DSP1NIC
18 DSP1CS
17 DSP2CS
16 DSP3CS
15 DSP1INT
14 DSP1RST
13 DSP2INT
12 DSP2RST
11 DSP3INT
10 DSP3RST
9 DIRCS
8 DIRINT
7 DIRRST
6 +3.3VST
5 FRXD
4 FTXD
3 OPTF
2 SPFOUT
1 NETSPDIF
C6818
P6808
NAETC-9056
U12 ZONE2 R
SP TERMINAL PC BOARD
D E
+13.5V
1 GND_SPSL
2
GND_SPSBL
3 GND_SPL
4 GND_SPR
5
GND_SPSBR
6 GND_SPSR
7 GND_SPC
1 FAN_GND
2 +12V_FAN
3 FAN_GND
+12V
GNDRL
+9VTU
GNDTU
1
+9VTU 1.0A 1 +9VTU
GNDTU 2 2 GNDTU
3 3 GNDRL
4
4 SPRLZ2
5 5 SPRLSB
6 6 SPRLCS
7
7 SPRLFB
RN1226 Q6807
8 8 SPRLF
Q6805
RN1226
Q6802
RN1226
Q6800
RN1226
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11 L6800 S-1.3C
10
R6800
9 22
8
R6810 22
7
6 L
5 L6801 S-1.3C
4
R6801
22
3
2
R6811 22
1
L6805 S-1.3C
20 R
19
R6805 22
18
R6815 22
17
16
SBL
15
L6806 S-1.3C
14
13
R6806 22
12 P6240D
R6816 22
11
1 SPSL
10 L6803 S-1.3C
2 SPSBL SBR
9
3 SPL
R6803 22
8
1 SPR
7
R6813 22
2 SPSBR
6
3 SPSR
5 SL
4 SPC
4 L6804 S-1.3C
3
R6804 22
2 P6250E
1
R6814 22
L6802 S-1.3C
SR
102J
R6802 22
R6812 22
C
Z2R 1 1
Z2R 2 2
GND Z2R
3 3
GND Z2R 4 4
JL6808 JL6808A
F G
R6900
15(1W)
R6901
15(1W)
C6820-6828
Type
Rating
TX-SR876/SA876
H
SPEAKER TERMINALS
C6810 C6811
102J 102J
P6800 P6801
FRONT L
FRONT R
C6815 C6816
102J
102J
P6805 P6806
SURROUND
SURROUND
BACK L
BACK R
C6813 C6814
102J 102J
P6803 P6804
SURROUND
SURROUND L
R
C6812
102J
P6802
CENTER
C6817
102J
P6807
ZONE2 L
DC,DD DT MP MB MT SA876
NO 103J 103J 103J 103J 103J