Onkyo TX-DS494 Service Manual page 19

A
SCHEMATIC DIAGRAM-4
NAAF-6790
SURROUND CHANNEL POWER AMPLIFIER
U2
1
PC BOARD
R605,R606
D,J type: 10
P,W type : 470
C601
R601
470 47/50
2
C681
R1569
10
10/50
SL
E
47/50
R602
SR
470
C602
C
3
R1503
D,J type: 10
P,W type: 470
4
R1501 47/50
470
C1501
Q507,Q508,Q509,Q510,Q513,Q514,
Q605,Q606,Q613,Q614,Q629,Q630,
Q1504,Q1505,Q1507, KTA1024 or 2SA949
Q515,Q516,Q617,Q618,Q1508, KTC3206 or 2SC2229
5 Q523,Q524,Q623,Q624,Q1512 KTD718 or 2SC5197 or 2SC4467
Q525,Q526,Q625,Q626,Q1513 KTB688 or 2SA1940 or 2SA1694
Q519,Q520,Q619,Q620,Q1510 2SC3421 or KTD600K
Q521,Q522,Q621,Q622,Q1511 2SA1358 or KTB631K
B
42.5V
42V 42V
Q629
2SA949
Q603
Q601 2SC1845
R617
R605
27K
R661 R663
2SC1845
47 47
-0.68V
Q605
2SA949
-12.9V -41.9V
Q609
2SC1845
-42V
-42.5V
Q611
2SC1740S-R
Q630
2SA949
Q602 Q604
2SC1845
2SC1845
R606
R618
27K
R664
R662
47 47
Q606
2SA949
Q610
2SC1845
Q612
2SC1740S-R
Q1504
2SA949
Q1502
Q1501
R1503
R1508
27K
2SC1845
2SC1845
R1504 R1505
47 47
Q1505
2SA949
Q1503
2SC1845
Q1515
2SC1740S-R
Q591,Q592,Q951 KRC105M or DTC123JS or RN1205
Q691 DTD113ZS or RN1226 or KRC245M
Q529,Q530,Q611,Q612,Q1515 KTC3199 or 2SC1740 or 2SC2458
Q501,Q502,Q503,Q504,Q505,Q506,
Q527,Q528,Q581,Q582,Q601,Q602,
Q603,Q604,Q609,Q610,Q627,Q628,
Q1501,Q1502,Q1503,Q1514, 2SC1845 or 2SC1775A
Surround Lch.
R659
2.2 (1/2W)
43.1V 43.2V
42.6V
Q613
P611
2SA949
Q619
R643
2SC3421
Q623
2.2
2SC5197
1.14V (1/2W)
Q627
2SC1845
0.58V
R649
C629 22K
101J
-0.56V
Q625
R645
2SA1940
2.2
-1.12V
(1/2W)
Q621
2SA1358
Q617
2SC2229
-43.1V -43.2V
R660
2.2 (1/2W)
P612
Q614
2SA949
Q624
Q620
2SC5197
2SC3421
R644
Q628
2.2
2SC1845
(1/2W)
R650
C630
22K
101J
R646
Q626
2SA1940
2.2
Q622
(1/2W)
2SA1358
Q618
2SC2229
Surround Rch.
Q1507 P1511
2SA949
Q1512
Q1510 2SC5197
2SC3421
R1522
Q1514
2.2
2SC1775-F
R1568 22
(1/2W)
R1525
C1529
22K
101J
R1523
2.2
Q1511
(1/2W)
2SA1358
Q1513
2SA1940
Q1508
2SC2229
Center ch.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE FUSE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MAKING ADJACENT TO THE SYMBOL.
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
A LENT, E POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
C
P603
S.L. S.R. C.
P602
RL601
P602A
R669
C623
R655
22
R667
8.2 104J
22
(1W)
L601
S-1.3C
R670 22
R668
22
L602
S-1.3C
R1567
22 C1511
R1529
L1501 8.2
104J
(1W)
S-1.3C
CAUTION
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
A V
AND RATING INDICATED.
ATTENTIION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
A V
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
D
SURROUND SPEAKER
U4
TERMINAL PC BOARD
NAETC-679
SURROUND
SPEAKERS
C625,C626,C1526
D,J type : NONE
P,W type : 103J
C641,C642,C1535
D,J type : NONE
P,W type : 102J
-B
+B
+B
-B
SR-GND
SL-GND
C-GND
GND
GND
REM_RL
V-PRO
I-PRO
+24V
Q691
DTD-113ZS
or RN1226
or KRC245M
P7201
RI
R7201
470
S7201
C7221
*
* S7201
E7201
FREQUENCY STEP
9kHz < - > 10kHz
for World Wide Model
* C7221
D,J type : NONE
P,W type : 103J
NA
T9
T9
P9
F9
F9
F9
S9
R9
D9
D9
D9
D9
SE
U6
PC
NAETC-6795