Onkyo TX-SR444 Service Manual page 45

1
Display section
MODEL NO.TX-SR343/ TX-SR444 / HT-R494 SCHEMATIC DIAGRAM (PART-8) DISPLAY SECTION
BADIS-1732
DISPLAY
C7511
D
223K
C7510
223K 50V
50V
R7507
220
VDD
R7965
4.7
J7961
1/2W
FLAC1
R7960
FLAC2
8.2 D7961 R7961
SEC3_1
TP961
D7960 NM NM
RL1N4003
SEC3_2
C
R7951 33 1W
1.5
R7950
R7953 NM
J7901
NM R7952 33 1W
B
A
1
2
Q7502
16-BT-168GNK
Ek(+8.2V)
L7532
LBC2518T2R2M
VP(-32V)
SG21
17
SG22
18
SG23
19
SG24
20
R7968
SG25
33k 21
SG26
22
SG27
23
Q7501
SG28
24
SG29
25 ML9208A-13GA
SG30
26
SG31
27
SG32
28
SG33
29
2SC2712-GR SG34
30
Q7961
SG35
-VP 31
GR1
32
KRA102S
Q7962
VP_CON
Q7511
1 VDD 16
NM
GND
R7550
LEDATMOS 2 Q11 15
DATA
MICMUT 3 Q10 14
CLOCK
4 Q9 13
R7551 Q0
TP7704
NM 5 Q8 12
Q1
TP7705
6 Q7 11
Q2
TP7706
7 Q6 10
Q3
TP7708
8 Q5 9
Q4
NM
KEY3
KEY2
KEY1
KEY0
R7601
270
R7611
KEY1
270
R7621
KEY2
270
KEY3 R7631
270
2
3 4
FLAC2
C7512
223K 50V
R7508
220
SG4 64
SG3 63
SG2 62
SG1 61
TP7061
AD1 60
TP7060
AD2 59
TP7059
P2 58
TP7058
P1 57
VDD(+3.3V) R7505 220
VDD 56
FLDSDO
DA 55
FLDCLK R7504 220
CP 54
~FLDCS
CS 53
R7503 3.3k
~FLDRST
RSTB 52
R7513
OSC1 51 R7502 3.3k
3.3k
OSC0 50
GND 49
VP
NM
R7561 T4/H4 ONLY: Dolby Atmos
*D7561
(BLUE)
SCB3318E-D2
27191312
TP7715
(LED)LH-5-5
TP7714
R7560 D7560
BLUETOOTH
TP7712
(BLUE)
TP7711 NM SCB3318E-D2
LEDTHRU
TP7713
27191312
(LED)LH-5-5
R7602 R7603 R7604 R7605 R7606 R7607
330 470 560 820 1.2k 2.2k
R7612 R7613 R7614 R7615 R7616 R7617
330 470 560 820 1.2k 2.2k
R7622 R7623 R7624 R7625 R7626 R7627
330 470 560 820 1.2k 2.2k
R7632 R7633 R7634 R7635 R7636 R7637
330 470 560 820 1.2k 2.2k
3 4
5
Schematic Diagram
R7523
10k
R7524
10k
4 5
S7502
EC12E2425WITH WASHER
L7531
NM
KTC3875-GR
Q7533
100
R7541
3
2
1
R7542 Q7541
C7711 C7712
1k IRM-3638M3S28
471J 471J
50V 50V
Q7808
KRC102S
*R7820
47k
8 5
+
7 +V
OUT
6
-
NJM4580CG
*Q7801
R7608 R7609
3.9k 12k
NJM4580CG
*Q7801
+
1
OUT
-V
-
4
R7618 R7619
3.9k 12k
R7628 R7629
3.9k 12k
R7638
3.9k
5
6
FLDCLK
FLDSDO
FLDCS
KEYINT0
FLDRST
KEYINT1
REMIN
+3.3S
KEY3
VOLA
KEY2
VOLB
MICDET
GNDDG
AUX_V
LEDATMOS
GND_AUX
MICMUT
LEDTHRU
KEY1
FLPOWER
KEY0
+5.0V
AUX_R
GNDA_AUX
MICOUT
AUX_L
-15V
TP703
+15V
C7714
104Z 25V
1
P7703
D7711 DA2J10100
(GND)
D7712 DA2J10100
R7303
R7713
75
C7719
NM
P7702
1
2
AUX AUDIO LIN
3
4
5
AUX AUDIO RIN
6
7
8
AUX VIDEO IN
9
C7716
NPJ-3PDB735
104Z
25V
MIC SECTION
T4/H4 ONLY
*R7806
2.2k
220
NM
*C7801
*R7804 L7831
10u
2
16V
5
4
1
L7832
NM
3
2
6
D
C
B
A