Onkyo HTR940 Service Manual page 30

A B
SCHEMATIC DIAGRAMS-7
DISPLAY SECTION
1
NOTE
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>
2 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.
NADIS-8786
U06
SWITCH PC BOARD
3
Q7151
1
DTA114ES
Q7152
NC
R7104 R7105 R7106
820 1.2K 2.2K
4
NAETC-8790
U10
HEADPHONE JACK
JL6605A
PC BOARD
5
5 4
P7201
To NAVD-8811(1/2)
4 L7201 3
022M
PHONES 2 2
3 1
7
L7202
8 022M
1
5
L7203
022M
E7201
C
Q7001
16-BT-128GNYK
R7001 100K
49
1 50 SEG1
51 SEG0
49 : SEG2
52 VCC2
53 DIG15/SEG39
54 DIG14/SEG38
55 DIG13/SEG37
56 DIG12/SEG36
57 DIG11
58 DIG10
59 DIG9
60 DIG8
61 DIG7
62 DIG6 64 : DIG4
63 DIG5
64
C7002 104J
C7003 101J
C7004 101J
C7005 101J
Q7006 1
NC
D7001
NC
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
C7101
NC
E7101
(SD-5 : A1)
D E
FL TUBE
R7021
C7011 223Z
10K
C7012 223Z
S7001
C7010 R7007 220
4
223Z
R7008 220
C7014
223Z
+
4
C7013
33/50
S7002
NC
32
31
SEG20
30
SEG19 : 32
SEG21
29
SEG22
28
SEG23
27
SEG24
Q7003 26
SEG25
25
M66005
SEG26
24
VP
FL DRIVER 23
SEG27
22
SEG28
21
SEG29
SEG32 : 18 20
SEG30
SEG33 : 17 19
SEG31 +5.6V
18
17
R7041
100
+5V
R7002 3.3K FLDRST
R7003 3.3K FLDCS
R7004 220 FLDCLK
R7042
R7005 220 FLDSDO
1K
R7101 R7102
330 470
KEY0
R7107 R7108 R7109 R7110 R7111 R7112
KEY1
330 470 560 820 1.2K 2.2K
NC
R7115 R7116 R7117 R7118 R7119 R7120
330 470 560 820 1.2K 2.2K
KEY2
R7123 R7124 R7125 R7126 R7127 R7128
KEY3
330 470 560 820 1.2K 2.2K
NC
F G
NADIS-8785
U05
DISPLAY PC BOARD
MASTER
R7023
VOLUME
10K
R7024
10K
5
5
L7032
L7031
J7050
022M
3 JL7351A
NC
2
1
U7041
3
2
1
C7303 C7304
104Z 104Z
C7301 C7302
471J 471J
P7301
L-AUDIO-R VIDEO
VIDEO 3 INPUT
R7113
3.9K
R7121 R7122
3.9K 12K
R7129 R7130
3.9K 12K
MDC Type : DUMMER
MPP Type : RT/RTY/TP
HT-R940
H
P701B
REMIN 26
26P
FLDRST 25
FLDCS 24
FLDCLK 23
FLDSDO 22
KEY0 21
KEY1 20
KEY2 19
KEY3 18
+5.6S 17
KEYINT0 16
FAC1 15
To NADG-8808
KEYINT1 14
FAC2 13
(SD-3 : A1)
-VP 12
VOLA 11
+5VDIS 10
VOLB 9
GNDCPU
8
7
V4_R 6
GNDV4 5
V4_L 4
GNDV4V 3
V4V 2
LEDSTBY 1