Headphone Jack; Display Section - Onkyo HTR940 Service Manual

A
SCHEMATIC DIAGRAMS-7

DISPLAY SECTION

1
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
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 (
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.
3
4
U10

HEADPHONE JACK

PC BOARD
PHONES
5
B
!
ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
NADIS-8786
U06
SWITCH PC BOARD
Q7151
1
DTA114ES
Q7152
NC
R7104 R7105 R7106
820 1.2K 2.2K
NAETC-8790
JL6605A
5
5 4
P7201
To NAVD-8811(1/2)
L7201
4 3
022M
2 2
3 1
7
L7202
8 022M
1
L7203
022M
E7201
1
LEDSTBY 8 8 LEDSTBY
LEDZONE2 7 7 LEDZONE2
GNDLED 6 6 GNDCPU
+BLED 5 5 +BLED
LEDPURE 4 4 LEDPURE
KEY0_2 3 3 KEY0_2
KEYINT0 2 2 KEYINT0
1 1
C7101
NC
E7101
(SD-5 : A1)
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 Q7003
56 DIG12/SEG36
M66005
57 DIG11
FL DRIVER
58 DIG10
59 DIG9
60 DIG8
61 DIG7
62 DIG6 64 : DIG4
63 DIG5
64
C7002 104J
C7003 101J
C7004 101J
C7005 101J
1
Q7006
NC
D7001
NC
R7103
560
HT-R940
D
FL TUBE
32
31
SEG20
30
SEG19 : 32
SEG21
29
SEG22
28
SEG23
27
SEG24
26
SEG25
25
SEG26
24
VP
23
SEG27
22
SEG28
21
SEG29
SEG32 : 18 20
SEG30
SEG33 : 17 19
SEG31
18
17
+5V
R7002 3.3K FLDRST
R7003 3.3K FLDCS
R7004 220 FLDCLK
R7005 220 FLDSDO
R7
3
KEY0
R7
KEY1
3
NC
R7
3
KEY2
R7
KEY3
3
NC