Onkyo TX-SR702 Service Manual page 10

A
SCHEMATIC DIAGRAM 1
1
1SS352
D901
Q911
78L05HF
1
O I
Q910
3
O I
79M05FA
D902
1SS352
2
Q904
+5VDSP
+12VA
-12VA Q903
78L05HF
GND 1
O I
Q901
78M12HF
3
O I
3
O I
79M12HF
Q902
R435 0
R436 0
3
R480
0
0 R479
4
5
B
Preamplifier section
1
Q909
2SA1726
PURE AUDIO
R905
0
R913
3
33
Q908
RN2402
VPOWER
Q907
RN1402
2
R906
100 2W
R903
2SA1726
0
3
R901
1
12
R902
2
56
SBL_VO
SBR_VO
SL_VO
SR_VO
CT_VO
FL_VO
FR_VO
NJM4565M-D
C388
+ 6
7
10/16
Q307:A
5
R388 10K
C390 103J
AMUTD
SBZ2MUTD
Z2LPMUTD
R462 0
0
R460
R459 0
R461 0
DAC_SBR
DAC_SBL
DAC_SR
DAC_SL
DAC_CT
DAC_SW
DAC_FL
DAC_FR
MSL
MSR
MCT
MSW
TO NAPS-8389 (SCH. 6)
C391
103J
Q901B
Val
hs
U1
R401
C401 + R409
100 RN1441
47/16 270
Q402
Q401
RN1441
RN1441
Q404
Q403
C402 270 100 RN1441
+
R402 R410
47/16
C403
R411
R403
+
270 Q406
47/16
100
Q405
RN1441
RN1441
RN1441 Q407 Q408
C404
270 100 RN1441
+
R404 R412
47/16
C405
R405 R413
+
100 RN1441
47/16
270
Q409
Q410
RN1441
Q411
Q412
RN1441
C406
270 100 RN1441
+
47/16
R406
R414
R407
C407
R415
+
270 100
RN1441
47/16
Q413
RN1441
Q414
Q416
RN1441
Q415
C408
RN1441
270 100
+
R408
R416
R427
100k
R428
100k
4.7/50 R485
+
2.2K
C439
Q427
RN1441
RN1441
Q429
4.7/50
2.2K
+
R486
C440
SCH. 2 DSP Section
C
R499
SYSIN
330
100_1/2W
FANH
FANCTR
Q992
Q991
RN1404 RN1404
+24V
GND
-24V
TRG12V
+56S
R498
100k
R350
3
330
1
R349
2
330
4
C450
104Z
TX-SR702/E
D
RI
P424
R962
P961
2
1
JL9502B
1
2
3
4
5
6
7
P308
1
2
3
4
5
6
7
8
9
10
11
12
ZONE2
LINE/PREOUT