Onkyo HT-R540 Service Manual page 28

A B
SCHEMATIC DIAGRAMS-7
DISPLAY SECTION
NOTE
1
!
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>
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.
2
U06
SWITCH PC BOARD
Except
MDD, MDC Type
3
NC
Q7151 1
DTA114ES
Q7152
DTC114ES
Except
MDD, MDC Type
R7104 R7105 R7106
820
1.2K 2.2K
NC
4
5
C
Q7002
16BT128GNK
100K
R7001
49
1 50
SEG1
51
SEG0 49 : SEG2
52
VCC2
+5V 53
DIG15/SEG39
54
DIG14/SEG38
55
DIG13/SEG37
56
DIG12/SEG36
57
DIG11
58
DIG10
59
DIG9
60
DIG8
61
DIG7
62
64 : DIG4
DIG6
63
DIG5
64
NADIS-8786 104J C7002
101J C7003
101J C7004
101J C7005
NC
Q7006
DTA114ES 1
D7001
1
LEDSTBY 8 8 LEDSTBY
LEDZONE2 7 7 LEDZONE2
GNDLED 6 6 GNDCPU
+BLED 5 5 +BLED
R7103
LEDPURE 4 4 LEDPURE
560
KEY0_2 3 3 KEY0_2
KEYINT0 2 2 KEYINT0
1 1
NC
E7101
D E
R7021
C7011 223Z
10K
C7012 223Z
S7001
C7010 R7007
220
223Z 4
R7008
220
C7014
223Z
+ 4
C7013
33/50
S7002
32
31
SEG20
30
SEG19 : 32 SEG21
29
SEG22
28
SEG23
27
SEG24
26
SEG25
Q7003
25
SEG26
M66005
24
VP
23
FL TUBE DRIVER SEG27
22
SEG28
21
SEG29
20
SEG32 : 18 SEG30
19
SEG33 : 17
SEG31 +5.6V
18
17 R7045 NC
+5V
R7041
100
R7002 3.3K FLDRST
R7003 3.3K FLDCS
R7004 220 FLDCLK
R7005 220 FLDSDO
R7042
R7101 R7102
KEY0
330 470
NC
R7107 R7108 R7109 R7110 R7111 R7112
KEY1
330 470 560 820 1.2K 2.2K
NC
R7115 R7116 R7117 R7118 R7119 R7120
KEY2
330 470 560 820 1.2K 2.2K
R7123 R7124 R7125 R7126 R7127 R7128
KEY3
330 470 560 820 1.2K 2.2K
NC
F G
U05
DISPLAY PC BOARD
R7023
10K
R7024
10K
5
-29.0V
MASTER
VOLUME
5
NC
L7032
L7031
J7050
022M
U7042
NC
3
2
1
3
2 NC
R7046
1
NC
JL7351A
NC
3 U7041
2
1
1K
C7303
104Z
C7301 C7302
471J 471J
P7301
L R VIDEO
VIDEO 3 INPUT
R7113
3.9K
R7121 R7122
3.9K 12K
R7129 R7130
3.9K 12K
HT-R540
H
NADIS-8785
P701B
REMIN 26
FLDRST 25
FLDCS 24
FLDCLK 23
FLDSDO 22
KEY0 21
KEY1 20
KEY2 19
KEY3 18
+5.6S 17
KEYINT0 16
FAC1 15
KEYINT1 14
FAC2 13 To NADG-8798
-VP 12
VOLA 11 (SD-3 : A1)
+5VDIS 10
VOLB 9
GNDCPU 8
7
V4_R 6
GNDV4 5
V4_L 4
GNDV4V 3
V4V 2
LEDSTBY 1
V4Y
LEDZONE2
V4C
GNDMIC
-12V
+12V
MICOUT
MICDET
MICMUT
OPTF
C7304
104Z