Dsp Assy (2/2) - Pioneer VSX-917V-K Service Manual

1

3.7 DSP ASSY (2/2)

B 2/2
DSP ASSY
(AWX8809)
A
MC
* IC401 Pin Function
XM/DT IC Rev.
pin 3B,4A
6 RFU_SCL
7 RFU_SDA
9 ANTREV
29 SC_RATE
35 DT4_MODE
44 MUTE
* Parts Table
XM/DT IC Rev.
No.
B
R414
R415
R417
R419
R420
R421
R432
R433
R434 stby
R435
R436
R438 stby
R439 stby
CN953
CN954
* Net Function
XM/DT IC Rev.
Net Name
RFU_SCL3
XMMUT3
DT4_MODE
SC_RATE
C
XMLNK
XMFS
XMANT
MC
V3D
V38
D
GNDD
E
GNDD
F
B 2/2
26
1
2
V1
V5X1
R430
10k
3B
V5X2
CN401
22k
22k
AKP7201
22k
22k
+5V
1
R408
22k
stby
22k
TR-
2
22k
0
TR+
3
R409
0
stby
GND 4
0
CK74
GCH GNDD
3B,4A
RFU_SCL3
XMMUT3
DT4_MODE
SC_RATE
LINK_ACTV
I2S_RATE
ANTREV
IC953
TC74VHC08FTS1
(SN74AHC08PW)
5V -> 3V
Level shifter
for XM
R965 100k
R963 100k
R964
100k
3 5 7 9 11
1
2 4 6 8 10
A 3/3
CN106
2
3
V32C
V3D
R419 *
R420 *
R421 *
C411 stby
VSS4
C405
VDD3
YB
CK118
0.1
COMM_RX_P
COMM_RX_M
VDD4
VSS5
COMM_TX_M
CK119
CK120
C406
0.1
R412
YB
C409
R410
stby
470
9p CH
GNDD
X401
C410
ASS7065
9p
45.1584MHz
CH
V5D1
V5D6
R976
47k
stby
Q951
IC951
RT1N241M
TC74VHCT08AFTS1
stby
C
(SN74AHCT08PW)
B
3V -> 5V
Level shifter
for XM
E
GNDD
R962
100k
GNDD
CN953
15 13
VKN1243
12
14 12
VSX-917V-K
3
4
R425 100
R424 100
R423 100
R418
100
R417
*
COMM_RX_DIG SAII_EN SAII_CLK
COMM_TX_DIG SAII_DATA
COMM_TX_EN VDD8 *
R429
IC401
PCM_OCLK
100
F2621E-01 (rev3B)
VSS12
R428
PCM_LRCLK
COMM_TX_P VSS11
100
VSS6 PCM_DATA VDD7
R427
PCM_CLK
100
R426
100
C418
stby
C419
stby
C416
stby
C417
stby
R434
*
R438
*
V5D1
V56 R954
100
IC952
TC74VHCT541AFTS1
3V -> 5V
Level shifter
for DSP,DIR,XM
GNDD
R970
100k
GNDD
11 9 7 5 3 1 GNDC2
CN951
10 8 6 4 2
XKP3078
C 2/2
CN807
4
XMLNK3*
XMFS3*
XMRST3*
XMANT3*
XMDI3
XMDO3
XMLSD3
XMMUT3*
XMMK
XMLK
XMBK
XMFD
DT4_MODE*
SC_RATE*
R955
100
R974
stby
GNDD