Main Assy (3/3) - Pioneer VSX-918V-K Service Manual

1

10.3 MAIN ASSY (3/3)

A
CN103
52044-1145
R5001
TUNER CE
1
R5002
TUNER DI
2
R5003
TUNER CLK
3
R5004
TUNER DO 4
STBY
5
GNDT
(L)
TL 6
+9V
7
TR 8
TR
VSM 9
B
RDS 10
GNDT 11
OSD RST
OSD RT 1
OSD CS
OSD CS 2
OSD CLK
OSD CLK
3
OSD DT
OSD DT
4
V1
V1
5
V2
V2
6
V3
V3
7
AMUTE
AMUTE
8
SWDET
SWDET
9
OSD_ON
OSD_ON
10
INH
INH
11
SW2
SW2 12
SW1
SW1
13
CN130
9604S-13C
C
EXCEPT
VSX-918V
CN129
9604S-19C
VSX-918V ONLY
D
E
*2
R9097
R9098
NOTE
1.RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
Rated power: 1/16W unless otherwise noted.
- +
Tolerance: (J) 5% unless otherwise noted.
2.CAPACITORS
Unit: p-pF or μF unless otherwise noted.
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
Rated Voltage: 50V expect for electrolytic capacitors.
: AUDIO SIGNAL FLOW
F
A 3/3
68
1
2
CHASSIS
(RCA Jack)
T_CE
T_DI
T_CLK
T_DO
A 1/3
VT+9
TL
A 1/3
R5009
OSD_RST R5005
Q5009
STBY
OSD_CS STBY
STBY
OSD_CLK
R5016
STBY
OSD_DT
V1
GNDT
V2
V3
AMUTE
SWDET
OSD_ON
INH
SW2
SW1
SROUT
SRIN
RMC
SRRX
SRTX
NC
GNDU
STBY
R9094
R9095
R9096
VSX-918V
VSX-818V
0
X
0 X
2
3
ASS7004
4.332MHz
RDS
X5001
IC5001
LC72725KM
C5010
STBY
C5018
GNDT
STBY
R6002
IC6001
STBY
TC74VHCT125AFTS1
1OE
1
2 RX
1A
TX
3 1Y
2OE
4
TX
5
2A
RX
6
2Y
7
GND
GNDU
D+5V
Q6001
RT1N241M
D+5V
IC9004
1 16
STROBE VDD
2 15
SERIAL IN OE
3 14
CLK Q5
4 13
Q1 Q6
5 12
Q2 Q7
6 11
Q3 Q8
7 10
Q4 Q'S
8 9
VSS
QS
TC4094BFN
GNDU
MAIN ASSY(3/3)
GNDT
TO POWER PACK ASSY
VSX-918V-K
3
4
D+5V
TO HDMI SWITCHER
MODULE
VSX-818V
W
CN1001
R5010
47K
GNDU
6 4
7 5
D+5V
IC9002
BR24L16FV-W
918 ONLY
1
2
VCC 14
3
4OE
13
4
4A 12
11
4Y
3OE
10
9
3A
8
3Y
STBY+5V
R9097
*2
V-12
C116 C115
VT+9
D+5V
0.01
21 19 17 15 13 11 9 7
20 18 16 14 12 10 8
C 2/2
CN816
4
2
3 1
E2PROM
A0
Vcc
A1
WP
A2
SCL
GND
SDA
GNDU
V+12
YB YB
0.01
D101
STBY
GAV
SWPR
A 2/3
GNDA
5 3 1
6 4 2