Pioneer VSX-918V-S Service Manual page 67

5
QQ
3 7 63 1515 0
TO MAIN ASSY
( TO MAIN ASSY 3/3 )
R433
C
68K
R431
FL
100K
R432
FR
100K
R435 R434
SL
39K
68K
R436
SR
-
68K
+
IC251
NJM4565MD
TE
(2/2)
L 13942296513
V+5U
V-12
www
.
5
http://www.xiaoyu163.com
6
A 3/3
(SBL)
(SB)
(C)
(SL)
(FL)
(SR)
(FR)
AMUTE
DCDT
XPROTECT
OLDT
R444
100K
IC251
NJM4565MD
(1/2)
R430
-
100K
+
Q254
RT1P241M
Q252
2SD1858X
(QR)
R443
470
GNDU
MYSXJ5
*5
x ao u163
y
D253 UDZS13(B)
D255 UDZS13(B)
i
R280
-
Q255 2SC4081(QR)
R463 22K
R464 22K
6
http://www.xiaoyu163.com
2 9
8
(C)
(SL)
(FL)
F-DRIVE
A 3/3
6_OHM
C392
1000p
YB
GNDU
C320
STBY
GNDCH
GNDA
Q257
Q253 2SA1576A
RT1N241M
(QR)
Q Q
3 6 7 1 3
C255
STBY
NP
Q248
2SC4081
(QR)
Q249
RT1N241M
RT1P241M
Q259
Q255 R464
*5
*5 Q260
2SC4081
(QR)
R463 *5
R465
R466
22K
22K
FAN CONTROL
(FL)
: Audio Signal Route (Front L ch)
(SL)
: Audio Signal Route (Surround L ch)
.
(C)
: Audio Signal Route (Center ch)
(SBL)
: Audio Signal Route (Surround Back L ch)
(SW)
: Audio Signal Route (SubWoofer ch)
VSX-918V-K
7
9 4 2 8
MAIN ASSY
A
2/3
(VSX-918V:XWK3363)
(VSX-818V:XWK3359)
SBR
SBL
17 C
GNDA
16
SL
15
GNDA
14
FL
13
GNDA
12
SR
11
10 GNDA
C
FR
9
AMUTE
8
CN704
7 F-DRIVE
DCDT
6
5 XPROTECT
OLDT
4
3 6 OHM
NECK
2
1
GNDU
CN110
XKP3059
CN252
B3B-EH
FAN+
FAN
FAN-
FAN STOP
R551
8.2K
R449
1 5 0 5 8 2 9 9 4
CN251
8.2k
52147-0310
D254
UDZS5R1(B) GNDU
G
GNDU
+24V
891
J22
XDX3064
Q250
2SC4081
NOTE
(QR)
1.RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
Rated power: 1/16W unless otherwise noted.
+ -
Tolerance: (J) 5% unless otherwise noted.
2.CAPACITORS
Unit: p-pF or μF unless otherwise noted.
Ratings: Capacity(μF)/Voltage(V) unless otherwise noted.
Rated Voltage: 50V expect for electrolytic capacitors.
JA:CEJA
: AUDIO SIGNAL FLOW
MAIN ASSY(2/3)
R447
4.7K
Q256
2SD2704K
m
co
7
8
9 9
A
B
1/2
C
2 8 9 9
D
E
F
A 2/3
67
8