Main Control Assy (3/3) - Pioneer VSX-56TXi Service Manual

1

3.10 MAIN CONTROL ASSY (3/3)

CN601
A 52045-1145
TUNER CE
TUNER DI
TUNER CLK
TUNER DO
TG
TL
+9V
TR
VSM
FM DET
TG
TR
J 1/3
TL
J 1/3
R579
FURN
B
FURNITURE
100
R578
CN551 stby
B8B-PH-K-S
TXD232C
RXD232C
232CCTS
232CDET
V+5_6
MRIN
GNDU
J602
PF10PG-B10
C
FV
1
FVY
2
FVC
3
SW5
SW5
4
SW4
SW4
5
SW3
SW3
6
SW2
SW2
7
OSDON
OSDON 8
MUTE
MUTE
9
R591
SDET
10
SDET
U-COMDCDET
D
J 1/3
OLDET
OLDET
R551
1
EXPST
100 2
R556
3
EXPCK
100 4
R553 10k
5
R554 10k
6
R555 10k
7
R561 10k
8
E
IC502
R531 100
EXPST 1
R532 100
EXPDT 2
R533 100
EXPCK
3
4
R536 10k
5
R537 10k
6
R538 10k
7
R539 10k
8
F
J 3/3
44
1
2
EXPECT AWX8436
R601
R602 470
470
R603
470
R604
470
+9V
9V Reg.
2SD1858X(PQ)
Q601
R607
470
(TX)
GNDT GNDA
DTA124EUA
MR Mute
Q251
551
VEF1040
R251
MRMUTE
1k
AMUTE
FV
FVY
FVC
C505
2.2/50
R832
1k
Port Expander
IC503
BU4094BCF
16
STB VDD
R557
EXPOE
15
OE
DATA
14 100
CLK MUTE
13
FUNC
OSDON
12
EXTH FANDRV
11
PHONOG LOFAN
10
DSDM TP4
Q'S'
9
VSS Q'S TP5
C540
0.01
BU4094BCF
16
STB VDD
R534
15 EXPOE
DATA OE
SW5
14 100
2296SW5
CLK
SW4
13
DEMSTP 2296SW4
12 SW3
2296SW3
DEMRST
11 SW2
2296SW2
MRH
10
TP6
NC
Q'S'
9
VSS Q'S
C535
0.01
2
3
TUNERCE
TUNERDI
TUNERCK
TUNERDO
V+12V
TUNER
C511
Q511
DTA124EUA 470/10
A MUTE
R511
1k
Reset
L501
2.2u
C501
stby
C
ASS7032
B
E
Q501
15.7MHz
DTC143EUA
C504
DCDET
OLDETO
C514
C538
0.01
stby C513
220/10
R558 10k
U+5V
R559 10k
R560 10k
GNDU
C534
stby
R535 10k
R540 10k
R541 10k
R542 10k
TP7
1 3 5 7
2 4 6
Z
CN2412
VSX-56TXi
3
4
U-COM
MRMU
AMU
12VTRG
12VDET
21
1394RST
22
1394CS
24
1394DO
23
1394DI
25
1394CK
GND
CMVSS
C502
I2CCK
I2CDT
0.01
XRESET
R502
Xout
0
GND
Xin
C503
5V
R505
330/10
NMI
100K
stby
WAKE UP
CMVSS
26
1394INT
XRESET 1WWUP
1W WUP
SDET
EN
DISP EN
OSDRST
OSD RST
OSDCS
OSD CS
OSD CONT
RST
DISP RST
RDY
DISP RDY
DISP/OSD CLK
DI
DISP DO
R522
DISP/OSD DI
10k
TP33
GNDA
Z Z
CN2415 CN2414
4
GNDT
V+12V