Integra DTR-30.1 Service Manual page 33

A
SCHEMATIC DIAGRAMS-7 / PART-9
DISPLAY SECTION
QQ
3 7 6 3 1 5 1 5 0
1
BAETC-0050
U0034 HEADPHONE PC BOARD
P7201
5
4
LBC2518T2R2M
L7201
2
3
L7202
7
LBC2518T2R2M
8
L7203
1
LBC2518T2R2M
2
HEADPHONE
3
4
T E
L 1 3 9 4 2 2 9 6 5 1 3
BADIS-0047
U0031
SWITCH PC BOARD
5
6
7
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
BOLD 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 (
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
www EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/6 WATT UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX)
"NM" AND "NC" ARE SHORT FOR "NOT MOUNTED" AND "NOT CONNECTED",
WHICH MEANS NO PART IS MOUNTED ON WIRING PATTERN OF PCB.
8
.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
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B
BADIS-0046
GNDDG 5
HPDET 4
HPR 3
223K
SPLE 2
C7011
HPL 1
R7007
220
E7201
<Note>
Refer to SCHEMATIC DIAGRAM-19 / PART-17
for FL driver IC control waveforms.
ZONE2
STANDBY
R7155
10K
R7156
1K
Q7152
KTA1504-GR
R7101 R7102 R7103 R7104
330 470 560 0
! ARE CRITICAL FOR SAFETY.
) ARE IN uF/WV.
x a o
PRINTING SIDE
y
i
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C
8
U003
DISPLAY PC BOARD
Q7002
16-BT-138GNK
FL TUBE
10K
R7001
49
50 SEG2
SEG1
51
SEG0
C7001
52
VCC2
+3.9V
53
223K
DIG15/SEG39
54
DIG14/SEG38
55
DIG13/SEG37
56
DIG12/SEG36
57
DIG11
M66005-0001AHP
58
DIG10
59
DIG9
FL DRIVER
60
DIG8
61
DIG7
62
DIG6
63
DIG4
DIG5
64
104Z C7002
101J C7003
101J C7004
101J C7005
Q Q
3 7 6 3 1
LEDZONE2 7
LEDSTBY 6
GNDDG 5
+5.0VDIS 4
KEY0 3
KEYINT0 2
GNDDG 1
R7105
820
u 1 6 3
.
DTR-30.1/DTR-20.1
D
2 4
9 9 8
NOTE:
XY in "SCHEMATIC-a / PART-b:XY" indicates the target
location of the plug or socket, X=A to E/H/K, Y=1 to 4/5/8.
32
31
SEG19 SEG20
30
SEG21
29
SEG22
28
SEG23
27
SEG24
26
SEG25
25
Q7003 SEG26
24
VP
23
SEG27
22
SEG28
21
SEG29
20
SEG30
19
SEG31
18
SEG32
17
SEG33
+3.9V
R7002 3.3K FLDRST
R7003 3.3K FLDCS
R7004 220 FLDCLK
R7005 220 FLDSDO
5 1 5 0 8 9 2 4 9
WF63 WF62 WF61
7
6
5
4
3
2
1
R7107
KEY1
330
R7115
KEY2
330
m
R7123
KEY3
330
c o
E
2
9 9
223K
C7012
C7010
223K
R7008
220
C7014
223K
R
R
C7013
33/50
+
R
8 2 9 9
DTR-20.1 BUTTON NAME
R7108 R7109 R7110 R7111
470 560 820 1.2K
R7116 R7117 R7118 R7119
560 820 1.2K
470
R7124 R7125 R7126 R7127
820
470 560 1.2K