Onkyo TX-8255, Руководство по обслуживанию

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TX-8255
SCHEMATIC DIAGRAMS-2
MICROPROCESSOR SECTION
TX-8255
U01
MICROPROCESSOR PC BOARD
+5V
BAND
INT1 INT2 INT3
SPRLB
CNVSS
FEPM
FCE
RESET
SYSOUT
LEDZONE2
LEDPURE
SPRLA
DIRECT
+5VCPU MPUGND +5VDIS IROUT
IRIN
LEDZONE2 LEDPURE MPUGND FLDRST KEY3 KEY2 KEY1 KEY0 REMIN KEYINT3 KEYINT2 KEYINT1 KEYINT0 FLDCS FLDCLK FLDSDO LEDSTBY
REMIN
+5VTU
SYSIN
MPUGND
RESET
FCLK
FBUSY
FRXD
FTXD
CNVSS
+5VMPU
APOWER
PLLSDA
TUNED
STEREO
RDSSIG
TUR
TUL
+9V_TU
PLLCLK
RDSDAT
MPUGND
+10S
Z2SELDAT Z2SELCLK
PLLSDA
TUNED
SIRIUSRX
POFF2
+12VA
SRRST
Z2SELLAT
+5VCPU
XMREQERR
TUXMSELB
TUXMSELA
TUXMSELA
KEYINT0
LEDSTBY
RDSSIG
RDSDAT
PLLCLK
SYSIN
+5VMPU
SYSIN
KEY1
KEY2
KEY3
SEC1H
PROTECT
VOLH
VSWB
XMDACRST XMCOMSEL SELDAT SELCLK SELSTB TUXMSELB
XMRST
XMSRTXD
FBUSY
FCLK
FRXD
AMUT
KEY0
VSWA
FTXD
XMSRRXD
VOLOUT1 VOLOUT2 APOWER
THERMAL
STEREO
FLDCLK
FLDSDO
FLDCS
FLDRST
KEYINT1
KEYINT2
KEYINT3
POFF
+12VS
RLGND
POFF
APOWER
SRRST
XMREQERR
XMDACRST
XMCOMSEL
XMSRTXD
+5V_XM
TS_GND
XMSRRXD
XMRST
SIRIUSRX
SIRIUSTX
SR_L_OUT
SR_R_OUT
XM_L_OUT
XM_R_OUT
GND_A
+12V
-12V
-12VA
POFF2
SPRLA
SPRLB
SEC1H
+12VA
TS_GND
TU-GND
TU_L
TU_R
DIRECT
PROTECT
+12VR
MPUGND
RLGND
SELCLK
SELDAT
VSWA
VSWB
SELSTB
AMUT
VOLOUT2
VOLOUT1
5.6VM
+12VS
+5VTU
THERMAL
MPUGND
IRIN
IROUT
SIRIUSTX
R608 None
220
None
220
R699
None
None R617
None None
33k 4.7k R720
None
None
0
0 R714
R713
10k
10k
None
None R716
R715
R718
10k
10k R717
56k 33k R719
MPP MDC
RI
IR IN
NADG-8876
TO TUNER UNIT
DISPLAY PCB
IR OUT
(VX)
(VR)
TO FLASH WRITER
NAETC-8878
To NAAF-8886
SD-1 : C5
R615
47K
R698
0
R677
0
R676
0
R675
0
R662
0
R661
0
R660
0
R657
0
R656
0
R650 0
R646 0
R642 0
R641 0
R640 0
R616
NC
Q706 78M56
3
O
2
G
1
I
Q601
M30622MWP-379FP
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
99 : AVCC
100
1 2 3 4 5 6 7 8 9
10 11 12
RESET
13
XOUT
14
VSS
15
XIN
16
VCC1
17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
P715A
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
R669
220
Q711
S-812C53AUA
1
G
3
O
2
I
Q701
S-812C56AUA-C3K
2
I
1
G
3
O
P708
R734 LIST
R700
0
R704
10K
R702
10K
Q712
TC74HC4052AF
1
0Y
2
2Y
3
Y_COM
4
3Y
5
1Y
6
INH
7
Vee
8
GND
9
B
10
A
11
3X
12
0X
13
X_COM
14
1X
15
2X
16
Vcc
P707
1
2
3
P705
9
8
7
6
5
4
3
2
1
P704A
1
2
3
4
5
6
7
8
9
10
11
12
13
L702
022K
L701
470M
C712
100/16
+
C724
100/16
+
C725
100/16
+
C709
100/16
+
C703
100/16
+
C702
100/16
+
C715
100/16
+
C710
470/10
+
R699
220
D704
R606
NC
R605
NC
R604
NC
R729
1M
R671
220
R670
220
C727
NC
C726
NC
R697
47K
R626
47
D702
1SS355
D713
R719 R717 R715 R713
R720
R718
R716
R714
C609 104Z
R731
1.5K
R711
(1/4W)
33
R850
10K
R659
NC
D605
NC
D707
D706
D705
D709
RL1N4003
D710
RL1N4003
C729
104Z
C728
104Z
C719
104Z
R723
47K
R724
47K
R725 47K
R726 47K
R622
220
R624
220
R730
1.5K
D712
UDZS5.1B
D711
UDZS5.1B
D604
UDZS5.1B
R607
NC
R710
10(1/2W)
C711
104Z
C701
104Z
R678 220K
R617 LIST
R727
220
R728
220
R722
47K
R721
47K
C714
10/50
+
R712
(1/2W)
0.22
Q710
2SA1930 2
C606
104Z
D603
1SS355
X601
6.000MHz
C716
101J
C708 474K
R701
1K
R667
47K
R666
220
C603
104Z
C602 104Z
D708
J702
J701
C720
NC
C718
100/16
C717
3.3/50
Q705
RN2402
2
1
3
Q703
RN1404
3
1
2
D703
D701
1SS355
C706
10/50
+
C704
DX-5R5L224
+
R705
2.2K
Q602
RN1404
1
23
R696
47K
R610 10K
R608
220 R612 47K
R613
1M
R611
NC
R614
10K
R618
220
R619
220
R620
220
R621
220
R625
220
R629 10K
R630
10K
R639 47
R638 220
R637 47
R636 47
R635 47
R634 47
R633 47
R631
10K
R644 47
R645 47
R643 NC
R647
10K
R648
10K
R649
10K
R651 10K
R652 10K
R653 10K
R654
220
R655
220
R658
1K
R664
220
R665
220
R674 10K
R673 10K
R672
10K
R679 47
R680 47
R681 47
R682 47
R683 47
R684
4.7K
R685
4.7K
R686 4.7K
R687 4.7K
R688 4.7K
R690 4.7K
R692 4.7K
R694 4.7K
R695
2.7K
R693
2.7K
R691
2.7K
R689
2.7K
C601
104Z
C604
101J
C605
101J
R663
47
C607
104Z
C610 104Z
C611 104Z
C612
104Z
C613
102K
C614
102K
C615
102K
C616
102K
C617
102K
C618
102K
C619
102K
C620
102K
C621
104Z
C622
104Z
R609 10K
R601
220
R602
220
R603
NC
C623
4.7/50
+
Q603
RN2402
1
2
3
D602
1SS355
D601
1SS355
R733
10(1W)
JL911B
1
2
3
4
5
6
P211B
1
2
3
4
5
6
7
8
9
10
11
P212B
1
2
3
4
5
6
7
P702A
13
12
11
10
9
8
7
6
5
4
3
2
1
P701A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Q855
LM61CIZ
2
O
1
G
3
V
JL703A
3
2
1
JL703B
1
2
3
R709
100
P706
22
24
21
2
10
1
R628 NC
R627
NC
R623
NC
MAIN MICROPROCESSOR
To NADIS-8877
SD-3 : D2
Refer to following table about the parts displayed by mark " LIST ".
<Note>
NC = No mount of parts.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
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.
!
NOTE
D705 - 707 : 1SS355
SPRLA : 50
NU : 49
NU : 48
PLLSDA
PLLCLK
FCE
FEPM
XMRST
XMSRTXD : 35
FBUSY : 34
FCLK : 33
FRXD : 32
FTXD : 31
XMSRRXD
81 : NU
82 : LEDZONE2
83 : LUDPURE
KEYINT0
LEDSTBY
KEY1
KEY2
KEY3
FLDCLK
FLDSDO
FLDCS
FLDRST
KEYINT1
KEYINT2
KEYINT3
KEY0
Z2SELDAT Z2SELCLK Z2SELLAT
VSWB VSWA
CNVSS RDSDAT
SIRIUSRX XMREQERR TUXMSELA RDSSIG XMDACRST XMCOMSEL SELDAT SELCLK SELSTB TUXMSELB SIRIUSTX
REMIN
TUNED
STEREO
BAND
INT1 INT2 INT3
SYSOUT
SYSIN
PROTECT
VOLH
THERMAL
SEC1H SPRLB
DIRECT
POFF2
VOLOUT1 VOLOUT2
APOWER
U03
THERMAL SENSOR
PC BOARD
LIST LIST LIST LIST
LIST
LIST
LIST
LIST
TEMPERATURE SENSOR
NC
TYPE --->
R734 560 270
NC
NC
NC
AMUT
NU
NU : No use
NU NU NU NU
VCC2
NU
VSS
NU
NU
NU
NU
NU
NU
NU
POFF NU NU NU NU
AVSS
To NAPS-8880
SD-4 : D3
+5V
+5V
+5.6V
+5V
POWER SUPPLY PCB
AMPLIFIER PCB
+19.5V
0V
+5.6V
+21V
+11.9V
+2.7V
+15.3V
+5.7V
+5V
+5V
A
1
2
3
4
5
B C D E F G H