Onkyo TX-SR804 Service Manual page 29

A
SCHEMATIC DIAGRAM-4 (SD-4)
MICROPROCESSOR SECTION
1
2
3
4
5
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
B
NAAR-8997
U14 MICROPROCESSOR
PC BOARD
1
APOWER
2 FTXD
3 FBUSY
4 FCLK
5
FRXD
6 CNVSS
7 RESET
8
+5VCPU
9
10 GNDD
11
RXMUTE_3.3V
12 TXMUTE_3.3V
13 VMRST_3.3V
14 VMCLK_3.3V
15 VMSDI_3.3V
16 VMSDO_3.3V
17
VMSTB_3.3V
18 GNDHD2
19
ADCRST_3.3V
20
21 SYSIN
22
DIRCS_3.3V
23 DIRINT_3.3V
24
DIRRST_3.3V
25
OPTF
26 DIGSDI_3.3V
27 DIGCLK_3.3V
28
DSPCS_3.3V
29 DSPBUSY_3.3V
30
DSPRST_3.3V
31
DSPINT_3.3V
32 DSPFCS_3.3V
33 MCHSEL_3.3V
34
DIGSDO_3.3V
DSPFINT_3.3V
35
1 GNDDSP
XC6213B332MR
2 GNDDSP
3 +5VDSP Q710
4 +9V
L602
+3.3V 5 1
5 +9V VOUT VIN
2
022K
6 GNDA
VSS
4 3
7 GNDA NC CE
8 GNDHD
9 GNDHD
Q712
11 Y8 10
GND
9
12 Y7
A8
13 Y6 8
A7
R784
VMSDI_3.3V 14 Y5 7
A6
VMCLK_3.3V 47 6 VMSDO
15 Y4
A5
DSPFCS_3.3V R783 16 Y3 5 VMCLK
A4
VMRST_3.3V 47 17 Y2 4 DSPFCS
A3
TXMUTE_3.3V 18 Y1 3 VMRST
A2
19 _G2 2 TXMUTE
A1
20 VCC 1
_G1
C718 104Z
Q711
10 11 DIGSDI
GND Y8
R781
DIGSDI_3.3V 9 12 DSPFINT
A8 Y7
330 13
DSPFINT_3.3V 8 DSPINT
A7 Y6
DSPINT_3.3V 7 14 DSPBUSY
A6 Y5
DSPBUSY_3.3V 6 15 DIRINT
A5 Y4
16
DIRINT_3.3V 5 RXMUTE
A4 Y3
RXMUTE_3.3V 330 4 17 VMSTB
A3 Y2
VMSTB_3.3V R782 3 18 VMSDI
A2 Y1
R780 19
VMSDO_3.3V 2
A1 _G2
1 _G1 20
330
VCC
L603
C717 104Z
022K
Q713
DIRCS_3.3V 11 10
Y8 GND
DIRRST_3.3V 12 9 DIRCS
Y7 A8
DSPCS_3.3V 13 8 DIRRST
Y6 A7
DSPRST_3.3V 14 7 DSPCS
Y5 A6
MCHSEL_3.3V 15 6 DSPRST
Y4 A5
ADCRST_3.3V 47 16 5 MCHSEL
Y3 A4
R785 17
DIGCLK_3.3V 4 ADCRST
Y2 A3
DIGSDO_3.3V 47 18 3 DIGCLK
Y1 A2
19 2 DIGSDO
R786
_G2 A1
20
1
VCC _G1
C719 104Z
RN2402
Q721
Q722
RN1404
C
TO NADIS-8675
SD-5:G2
P7534A
KDS4148U
C603 104Z
VMSDI
VMSDO
VMCLK
VCRST
VMUT
OSDSDO
SYNC
OSDCLK
OSDCS
CNVSS
R616 1K
RDSDAT
XMSRSEL
RESET
6.000MHz
KDS4148U
C606
R624
D602
POFF 10K
VSYNC
R623 220
XMERRIRQ/RDSCLK R625 220
XMCOMSEL R627 220
XMDACRST 220
R628
DIRINT R629 220
R631
DSPFCS
DSPBUSY R632
R634
DSPINT
DSPFINT R636
SDET R638
R640
PLLSCL
PLLSDA R642
RN2402
Q723
Q724
RN1404
P2004A
TO NAVD-8991
SD-9:E1
TX-SR804/804E
TO NAVD-8991
SD-9:F1
P2006A
C634 102K
C633 102K
C616 102K
C617 102K
D601
C618 102K
R713
R719 2.7K
C619 102K
RN1404
10K
Q601 R721 2.7K
R710
C620 102K
10K
R723 2.7K
C621 102K
R725
2.7K
R619 47K
C601
104Z
1
C602104Z 2
R601 220 3
R603 220 4
R605 220 5
P95/ANEX0/CLK4
R607 220 6
P94/DA1/TB4IN Vref
7
R608 220
P93/DA0/TB3IN Avcc
R609 220 8
P92/TB2IN/SOUT3 P97/_ADTRG/SIN4
R610 220 9
P91/TB1IN/SIN3 P96/ANEX1/SOUT4
R612 220 10
P90/TB0IN/CLK3
R613 220 11
P141
12
P140
R615
13
BYTE
10K 14
Q701
CNVss
15
P87/XCIN
R618 220 16
M30627FJPGP
P86/XCOUT
0
R790 17
RESET Main Micro Processor
18
Xout
19
Vss
20
Xin
C605
21
Vcc1
10K
22
104Z
P85/NMI
R620
23
P84/INT2
24
P83/INT1
25
P82/INT0
26
P81/TA4IN/U
27
P80/TA4OUT/U
28
P77/TA3IN
220 29
P76/TA3OUT P44/CS0
220
30
P75/TA2IN/W P45/CS1
220 31
P74/TA2OUT/W P46/CS2
220 32
P73/CTS2/RTS2/TA1IN/V P47/CS3
220 33
P72/CLK2/TA1OUT/V
47 34
P71/RXD2/SCL2/TA0IN/TB5IN
47
35
P70/TXD2/SDA2/TA0OUT
C610 36
P67/TXD1/SDA1
104Z
37
Vcc1
38
P66/RXD1/SCL1
P2005A
TO NAVD-8991
SD-9:F1
D
+5VDIS
C615 102K
R706
10K
C631 102K
102K
C632
102
* * * *
P11/D9
101 220 R742
P12/D10
100 1K R693
P13/D11
1K
99 R691
P14/D12
98 220 R741
P15/D13/INT3
97 220 R740
P16/D14/INT4
96 220 R739
P17/D15/INT5
95
P20/AN20/A0(/D0/-)
94 BAND * R6
P21/AN21/A1(/D1/D0)
93 INIT1 R6
*
P22/AN22/A2(/D2/D1)
92 INIT2 * R6
P23/AN23/A3(/D3/D2)
91 INIT3
P24/AN24/A4(/D4/D3)
90 220 R738 THERMAL
P25/AN25/A5(/D5/D4)
89 220 R737
P26/AN26/A6(/D6/D5)
R707
88 220
P27/AN27/A7(/D7/D6)
87
Vss
86
P30/A8(/-/D7)
220
85 R673
Vcc2
84 220 R700
P120
83 220 R699
P121
220 R697
82
P122
81 220 R692
P123
80 220 R690
P124
79 220 R680
P31/A09
78 220 R679
P32/A10
77 220 R678 KD
P33/A11
76 D603
P34/A12
75 220 R671
P35/A13
74 220 R670
P36/A14
73 47 R676
P37/A15
72 47 R675
P40/A16
R674
71 47
P41/A17
70 47 R668
P42/A18
69 220 R667 SPR
P43/A19
220 R666 SPR
68
67 220 R665 SPR
66 220 R664 SPR
65 AMUTM
SBZ2MU
Z2MUTM
TO S
P3103B
TO NAAF-8678
SD-1:H2