Onkyo TX-SA705 Service Manual page 14

A
SCHEMATIC DIAGRAMS-4 (SD-4)
DAC SECTION
NADG-9269-1(1/2)
1
U17
DAC AND
MICROPROCESSOR
PC BOARD
U1003
2
VCC
IN 2 GND
U1002
VCC
OPTICAL IN 1
GND
U1001
OUT
VCC
GND
3
4
5
B
TO NAHDM-9265
SD-6:A5
P3803A
WF02
LBC2518T470M
L1001
LBC2518T470M
104Z L1011
C1012
+3.3V
C1011
100/10
1 16
SELECT VCC
2 15
1A ST
3 14
1B 4A
+5.0V
3 4 13
1Y 4B
5 12
C1004
2A 4Y
104Z
2 6 11
2B 3A
7 10
2Y 3B
R1003
1 8 9
IN GND 3Y
47
Q1011
TC74VHC157FT
3
C1003
104Z
2
R1002
1
IN
47
WF01
R1001
3
IN
220
2
C1002
104Z
1
<Note>
Refer to SCHEMATIC DIAGRAM-15 (SD-15)
for digital audio signal waveforms.
C
TO NAHDM-9265
SD-6:A3
P3801A
+3.3V +5.0V
LBC2518T4R7M
L1102
+VD2
+VLS
WF08 WF06
L1101
LBC2518T4R7M
R1101 47
R1102
LM182 47
104Z
L1111 R1103 C1103
47
WF07
R1104 220 C1104
R1105 47
220
R1106
220
R1107
R1108 47
R1109 220
+5.0V
LBC2518
T4R7M
L1103
L1104
LBC2518
T4R7M
SDIN_SBLSBR
TX-SR705/SA705
D
TO NAHDM-9265
SD-6:A4
P3802A
WF05 WF04
WF03
1 48
CX_SDIN1 RXP1/GP1
2 47
CX_SCLK RXP2/GP2
3 46
CX_LRCK RXP3/GP3
4 45
VD1 RXP4/GP4
5 44
DGND1 RXP5/GP5
104Z 6 43
VLC RXP6/GP6
7 42
CCLK/SCL RXP7/GP7
8 41 C1115 104Z
CDOUT/SAD VARX
9 40
CDIN/AD1 AGND2
2.7K
10 39
CS/AD0 Q1101 LPFLT
11 38
INT1 MUTEC
CS42528-CQZR-D
12 37 R1111
_RST AOUTA1-
13 36
DIR,CODEC
AINR- AOUTA1+
14 35
AINR+ AOUTB1+
15 34
AINL+ AOUTB1-
16 33
AINL- AOUTA2-
+VARX
+VA
R1305 C1303 NJM4580M-D
+
C1301 101J
56 10/50
R1303 10K
2
R1307
1
+
3
56 C1305
10/50
Q1301:A
NJM4580M-D
5
R1308 C1306
7
Q1301:B
+
6
56 10/50
R1304 10K
C1302
101J
+
R1306 C1304
LBC2518T470M
56 10/50
L1202 +5.0V
+VA_DAC
L1201
+3.3V
+VD_DAC
LBC2518T470M
10K R1201 1 28
DSD_B DSD_A
10K R1202 2 27
DSD_SCLK VLS
47 R1203 3 26
SDIN VQ
4 25
47 R1204
SCLK AMUTC
R1205 5 24
L1211 47
LRCK AOUTA-
LM182 47 R1206 6 23
MCK AOUTA+
7 22
VD VA
8 21
DGND AGND
220 R1207 9 20
CDIN AOUTB+
220 R1208
10 19
CCLK AOUTB-
220 R1209
11 18
CDOUT BMUTC
220 R1210 12 17
CS VREF
1K R1211 13 16
RST REF_GND
104Z C1202 14 15
VLC FILT+
+
Q1201
C1201
CS4398-CZZ
220/10
2ch DAC
R1120
330
R1119
330
330 R1118
330 R1117
330 R1116
GND_LPF
WF09
473K
C1114
C1113
222K
ADLT
R1301
10K
R1302
10K
ADRT
10K
R1212
104Z
C1208
+
C1207
4.7/50