Pioneer S-W1EX Service Manual page 19

5
FET DRIVER
EP05Q06
R471
4.7
IC431
D471
1/8W
TC74HC08AF
7
R421
2
Vs
HIN
5
3
470
1
14 HO
LIN
6
7
R431
7 COM VB
5
Vcc
6
14 470 LO
4
8
TC74HC08AF
IR2011S IC421
IC431
IC431
TC74HC08AF
7
R441
10
8
14 470
R472 D472
9
7
IC431
4.7
EP05Q06
13
1/8W
11
12
14
TC74HC08AF
HIN Vs
R451
5
LIN HO
6
470
COM
VB
7
LO
Vcc
8
IR2011S
IC441
TC74W04FU-TRB
IC501
8
5
3
4
8
IC501
2
6
4
TC74W04FU-TRB
R522
8 STBY
7
1
IC501 4
Q521
TC74W04FU-TRB
2SA1576A(RS)
Q522
2SC4081(RS)
FEED BACK
IC303
NJM4558MD
R323
*
47k
4
5
VR321
R324 R328
* *
39k VRTS6VS103 4.7k
7
8
6
C324
R327
470p
STBY
R325
4.7k
ADJ DC OFFSET
( MONITER DC LEVEL OF OUTPUT TERMINAL
AND ADJUST DEFFERENCE to 0V+20mV)
*R321,R322,R323,R324,R328
: RN1/16SE****D (**** VALUE)
NOTES
ALL CAPACITORS ARE IN µ F
UNLESS OTHERWISE SPECIFIED
p :CCSQCH: pF
(OTHER :CKSQYB)
5
6
NO LOAD
47.3V
C531
100/16
3W 3W
D421
EP05Q06
Q421
D
4
R422
3
G
2.2
S
IRFB23N15D
2
EP05Q06
1
Q431 D
D431
G
R432 2.2
S
IRFB23N15D
D441
Q441
EP05Q06
D
4
R442
3
G
2.2
S
2
IRFB23N15D
1 EP05Q06
Q451 D
D451
G
R452 2.2
S
IRFB23N15D
R523
PWM ENABLE
470
R526
CHASSIS
100k
50V
* R321
4.7k
R322
*
4.7k
D501
2SA1576A(RS)
Q501
R501
1k
1/4W
D502
R504
1k
Q502
2SA1576A(RS)
AC ON SW
ALL RESISTORS ARE IN Ω
:CEAT
:-TS
-TS LF RS*LMF
6
7
Q531
R535
2SA1255(OY)-TLB
STBY
Q532
R533
2SC4081(RS)
22k
OVER LOAD DETECTOR
ASR7008-
RY501
1/4W
L421
ATH7014 STBY
1/4W
1/4W
L441 ATH7014 STBY
1/4W
Q503
UMX1N-T
C
B
E 1k B2
D503
R514
R517
DC DETECTOR
47k
R518
2SC4081(RS)
Q507
47k
Q506
2SC4081(RS)
1/16W(CHIP)
S-W1EX
7
8
B2P3-VH
CN471
1
+B
G
2
GNDP
KN491
VNF1084
CHASSIS
DC OFFSET 23.5V
CN481
B2PS-VH
SP-
2
1
SP+
KN492
VNF1084
CHASSIS
Q503
C2
UMX1N-T
E2
RY CONT
2SA1255(OY)-TLB
Q505
Q504
2SC4081(RS)
8
A
CN31
to Speaker
B
C
D
E
F
E
19