Integra DTR-7.8 Service Manual page 48

A B
Q Q
3 7 6 3 1 5 1 5 0
SCHEMATIC DIAGRAMS-13 (SD-13)
DISPLAY SECTION
NADIS-9096
1 JL9303A
1 FLAC1
2 FLAC2
3 -VP
4 +3.3VMPU
+3.3V
40
39
38
37
36
35
34
33
32
31
2
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
NAETC-9100
5
4
T E
L 1 3 9 4 2 2 9 6 5 1 3 3
U37
OPT PC BOARD 2
1
3
P7501B
TORX177L
U7520
+5.0V
R7520 JL7560B
1 JL7560A
IN
220 1 1 OPTF
L7520
3 2 2 +5VMPU
DIGITAL VCC
3 3 GNDDG
022K
2
GND
R7521
330
AUDIO
R7522
330
VIDEO
R7523
75
4
S VIDEO
5
4
L7530
2
SETUP MIC 3
022K
7
R7531
8
100
1
J7530
P7530
R7561 +3.3V
100
w w w
5
R7560 1K
U7560
NJL34H380A
.
C
U33 DISPLAY PC BOARD
FLAC1
FLAC2
+3.3VMPU
-VP
-VP
DIGSDO
DIGCLK
FLD1CS
FLD2CS
49
FLDRST P3
KEY0 P2 50
SEG1
KEY1 P1 51
SEG0
KEY2 +3.3VMPU 52
VCC2
KEY3 53
DIG15/SEG39
LEDLATCH 54
DIG14/SEG38
KEYINT1 55
DIG13/SEG37
+3.3VST GNDDG 56
DIG12/SEG36
57
+3.3VMPU
DIG11
GNDDG 58
DIG10
VOLA 59
DIG9
VOLB 60
DIG8
LEDZ3 61
DIG7
LEDSTBY 62
DIG6
LEDREADY 63
DIG5
LEDZ2 64
LEDPURE
OPTF
REMIN
+5VMPU
MICDET
MICMUTE
MIC
WF62
AUX2_L
GNDAUX2
AUX2_R
+15VA
-15VA
GNDVD
AUX2CV_IN
AUX2SY_IN
AUX2SC_IN
IRINA1
IRINA2
IRINB1
IRINB2
<Note>
Refer to SCHEMATIC DIAGRAM-13
(SD-13)
for FL driver IC control waveforms.
Q7520:B
6
10/35
7
C7539 B
5
NE5532APSR
-14.4V
C7540 3 Q7520:A
10/35 1
A
2
+14.4V
-14.4V
+14.4V
330J
Q7533
C7537 RN2403
33K
R7537 +3.3VST
KEYINT1
R7538
2
10/35 C7538 R7539 KEY0_1
1
R7532 C7535
3
220
10/35 220
330 Q7530:A
NJM4580M-D
Q7530:B
5
GNDDG
7
B
6 KEY1
GNDDG
KEY2
x a o
y
GNDDG
KEY3
i
GNDDG
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D E
8
32 P20 P38 49
31 P21 P37 50
49:SEG2 SEG20 SEG1 49:SEG2
32:SEG19
30 P22 P36 51
SEG21 SEG0
29 P23 +3.3VMPU 52
SEG22 VCC2
28 P24 16G 53
SEG23 DIG15/SEG39
27 P25 15G 54
SEG24 DIG14/SEG38
26 P26 14G 55
SEG25 DIG13/SEG37
25 P27 13G 56
Q7502
SEG26 DIG12/SEG36
24 -VP 12G 57
-VP DIG11
M66005-0001AHP 23 P28 11G 58 M66005-0001AHP
SEG27 DIG10
22 P29 10G 59
SEG28 DIG9
SLAVE 21 P30 9G 60
SEG29 DIG8
20 P31 8G 61
SEG30 DIG7
19 P32 7G 62
64:DIG4
SEG31 DIG6
18 P33 6G 63 64:DIG4
SEG32 DIG5
17 P34 5G 64
SEG33
+3.3V
WF63
WF63
WF62
WF61
C7519
104Z C7514
104Z
Q Q
3 7 6 3
+3.3VMPU
VOLA
VOLB
GNDDG
Q8
LEDSTBY
LEDREADY
LEDZ2
LEDZ3
LEDPURE
KEY0
+5VMPU
GNDDG
KEY0_1 10
JL7590A
R7621 R7622 R7623 R7624 R7625 R7626
270 330 470 560 820 1.2K
R7631 R7632 R7633 R7634 R7635 R7636
270 330 470 560 820 1.2K
u 1 6 3
.
R7641 R7642 R7643 R7644 R7645 R7646
330 560 820
270 470 1.2K
+
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F G
2 4
9 9 8
Q7500
HNA-16SL04T
NAETC-9098
32 P55
HEADPHONE PC BOARD
U35
31 P56
SEG20
32:SEG19
30 P57
SEG21
29 P58
SEG22 JL4103B
28 P59
SEG23 1 GNDDG
27 P60
SEG24 2 HPDET 022K
26 P61
SEG25 3 HP_R R7580
25 P62 L7580
Q7501 33(1W)
SEG26 4
-VP
24
-VP
5 HP_L
23 P63
SEG27
R7581 L7581
22 P64
SEG28 33(1W) 022K
MASTER 21 P65
SEG29
GND
20 P66
SEG30
L7582
19 P67
SEG31 022K
18 P68
SEG32
17 P69
SEG33
WF61
NAETC-9101
U38 VOLUME PC BOARD
C7511
104Z
JL7591B
1 5 1 5 0 8 9 2 4
1
2
3
JL7591A
4
+3.3VMPU 1
VOLA 2
VOLB 3
GNDDG 4
NADIS-9097
U34 DISPLAY PC BOARD
1
1 J7593
+5VMPU
2 2
ZONE3 ZONE2
3 3
4 D7592 D7593
4
5 5
6 6
7 7
8 8
J7592
GNDDG
9 9
10
JL7590B DTC123JKA
Q7593
Q7592
DTC123JKA
DTC123JKA
R7611 R7612 R7613 R7614 R7615
330
270 470 560 820
MA,J
DD
+3.3V
8 7
3Y GND MA
R7617 R7618 9 6
3A 2Y
DD
2.2K 3.9K 10 5
3B 2B
11 4
4Y X4 2A
12 3
4A 1Y
MA
13 AND 2
4B 1B DD
14 1
VCC 1A
Q7611
R7627 R7628 R7629
TC74VHC08F
2.2K 3.9K 12K
NOTE
THE COMPONENTS IDENTIFIED BY MARK
m
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
R7637 R7638 R7639
3.9K 12K
2.2K
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
c o
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.
R7647 R7648 R7649
3.9K 12K
2.2K
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)
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
DTR-7.8
H
2
9 9
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
P7580
5
4
2 L
3 R
HEADPHONE
7
8
GND
1
E7580
R7592
1
MASTER
2
10K
9 8 2 9 9
3
VOLUME
R7593
10K
S7590
DD:STANDBY
MA:READY
+5.0V
MA:STANDBY
D7595
D7594
Q7594
R7616
1.2K
Q7594 R7598 R7599
YES
220 1K
NO 1K NO
D7594 D7595
SEL4910D-D SLI-343URC-TE7
SLI-343URC-TE7 NO
J7592 J7593 J7594 J7595
YES YES NO NO
NO NO YES YES
!
ARE CRITICAL FOR SAFETY.
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
PRINTING SIDE