YORKVILLE NX750P Service Manual page 7

PHANTOM SUPPLY
+56V
R10
4K7
RAD
2N5551
Q4
5107
1N5254B TO92
10U
D4
C7
27V0
0W5 63V
+24V
LVGND
FROM INPUT PCB
1
9 W10:A
LVGND
W10:B 9
2
3
HORNGND
9 W10:C
+15V 4
9 W10:D
5
-15V
9 W10:E
6
+24V
9 W10:F
7
9 W10:G
8
9 W10:H
9
9 W10:I
R34
C18
-15V_MOD
1/4W
220P 100V
47K
MINI
+15V_C
+15V +15V_C
MC33078P
U2:C
R38
U2:B
1/8W
10R0
FLMP
-15V_C
100N
C21
100V
+/-15V_C
WOOFGND
100N
C26
100V
C28
R44 470P
-15V_C
1/8W
R45
10R0
FLMP 1/4W
6K8
-15V
MINI
+15V_MOD
R51
1/4W
6K8
MINI
R56
1/4W
6K8
MINI
-15V_MOD
470P
R59
C37 6K8
100V MINI
+15V
FLMP
10R0
+15V_MOD
1/8W
R64
PSGND
W2:H 0
8
R105 100N
+145V
12K W2:G 0
C41
7
.
100V
+/-15V_MOD
-145V
W2:F 0
6
+22V
HORNGND W2:E 0
5
680P
100N
-22V
C71 W2:D 0
C44
4
100N
100V
100V
C91
+56V
W2:C 0 R73
100V
3 -15V_MOD
1/8W
10R0
-56V FLMP
W2:B 0
2
-15V
SILENT
W2:A 0
1
+15V_MOD
+15V
100N
+5V_MOD
+15V
C47
100N
100V
C50
100V
100N
100N
C52
C53
100V
100V
100N
100N
C55
C58 PSGND
100V
100V
PSGND WOOFGND
-15V
-15V_MOD
D5
4148
SILENT ON/OFF
R19 R20
SILENT
1/4W 1/4W
2K2 1M
MINI RAD
63V
63V
RAD
C11
C12
10K
2U2
1U R22
LVGND
R28
1/4W
4K7
+15V_MOD MINI
R30
2K
+15V_MOD
MINI
1N750ARL
100N D12
LM311
C17 4V7 2
U1
+
100V 0W5
3
-
D14
4148 WOOFGND
MC33078P
R35
-15V_MOD
1/8W
R36 100R0
1/8W FLMP
U2:A
100R0
FLMP
+5V_MOD
+15V_MOD
LM311
2
U4
+
7
OUT
R42
3
-15V_MOD 6640
1/4W -
2K
MINI
0W5
4V7
-15V_MOD WOOFGND
100N
D18
C27 1N750ARL
100V
100V
R43
C29
1/4W
10N 100V
WOOFGND 47R
R47 MINI
220N
1/4W
C32 1M
RAD
63V
MC33079P
R52
MC33079P 1/4W MC33079P
R54 R55 1K4
U6:E 1/4W 1/4W .
U6:A
1K0 1K0
MINI MINI
U6:B U6:C
68N
WOOFGND
C36
100V
WOOFGND
74HC14N
U9:A
IN OUT IN
1 2 3
6603
PSGND
R75 R69 R67 R68
12K 12K 12K 12K
. . . .
IN
9
+15V_LS
100N
1N5240BRL
D22 C42
10V0 100V
0W5
+4V7_LS
100N
LVGND
C43
1N750ARL
100V
D23
4V7
0W5
-145V
+15V_MOD
+4V7_LS
100N 100N
+5V_MOD
C48 C49
R83
+4V7_LS
100V 100V
100R0
FLMP U11
MC78L05ABPRM
IN OUT +5V_MOD
{Function}
GND
470N
PSGND 6728 {Watts}
C143 U5:E
100N
TO92
100N 100N 63V
C54
C56 C57
100V
100V 100V
PSGND -145V
-145V
HORN AMP
4U7
C3
63V
HORNGND
R219
C92
1/4W
3N3 100V
470R
RAD
BC560C
R13
Q5 Q6
1/4W
5102 5102
2K2 C144
MINI
TO92 10N 100V
2N5401 2N5401
680P
R21
2N5638 Q7
C8 18K
Q9 100V MINI 5108
0W5
5119 12V0
TO92 TO92
D7
TO92
1N5242B
HORNGND
HORNGND
R25
100K
RAD
+5V_MOD
+5V_MOD
100N
C16
100V
+5V_MOD
6964 U3:C
R32
WOOFGND WOOFGND
22K
MINI
7
OUT +5V_MOD
6640 WOOFER AMP
WOOFGND
+5V_MOD
R40
22K +4V7_LS
6964 U3:A 6964 U3:B
74HC86N
MINI
U5:D
13
11
12
6605
74HC86N
WOOFGND
U5:C
10
74HC86N
+5V_MOD 8
9
U5:B 6605
4
6
+4V7_LS
-15V_MOD
5 U8:A
6605
R49
4K7
MINI
- -145V
6640
3
100N
OUT C33
IR2110
7
100V
+
U7
2
LM311
R212 +4V7_LS
2K2
MINI
-145V 6887
+15V_MOD
74HC86N
4N7
U5:A
C141
R213
1
2K74 250V
3
0.1%
2
6605
-15V_MOD
R221
220R
MINI
74HC14N
74HC14N
U10:C
U9:B
OUT IN
6 5
OUT
4
6603
6603
74HC14N
U9:D
OUT
8
R166 3N3
6603 47K
R63
MINI
100V
1K4
.
2N5401
-145V
Q18
5108
TO92
WOOFGND
R70
1K4
WOOFGND
.
74HC14N
U10:A
R76
IN OUT
1 2
4K12
6603
0.1%
R77 R78 R128
R74
1/4W 0.6W 0.6W
1K4
37K4 18k7 18k7
.
. SMALL SMALL
470P
-145V C45
U6:D
100V
R79
1/4W
1K0
MINI MC33079P
470P
WOOFGND
C46
100V
+5V_MOD
R80 R81 R82
1/4W 1/4W 1/4W
4K12 37K4 37K4
0.1% . .
WOOFGND
R1 R2
1/4W 1/4W
22K 2K21
MINI FLMP
680P
R3 1N5242B
C1 10U
2K2 D1
100V
. 12V0 C2
0W5
63V
R4
R5 2.0W
3K9 2K2
.
. R6
R7 R8 R9 1/4W
68U
680R 10K 2K2 11R
C4
FUSIBLE
RAD RAD MINI
25V BC550C
100N
Q3
C6 C5
5101
10P 500V 100V
BC560C R15 TO92
270R
R14
RAD
+
1/4W
18K
RAD
TO92
R16
2K2
MINI
Q8
5108
4U7
C9
R23
15P
63V
4148 1/4W
C10
D6 11R
100V . FUSIBLE
MJE340
D21
Q11
1N5242B
6873_S 10U
D11
4148
C13
TO126 12V0
63V
0W5
R24 R26
2K2 1/4W
MINI 2K21
R27
680P FLMP
100R
C14
RAD
100V
+145V
R29 220P
1K0 C15
MINI
100V
MPSA92
Q13
R31
5114 0R047
.
TO92
R33
1K5
FLMP
D
IRFP23N50L
Q14:A
R37
N 6967
G
1/4W
TO247
150R
MINI S
D15 R39
1/4W
2R2
0A2 BAT85
.
1N5248B
R41
D16
1M
18V0
RAD
0W5
100N 1U
C24 C25
100V 63V
D17
UF4004
R46
1R
SMALL
R48
+15V_LS 150K
.
D
IRFP23N50L
Q15:A
R50
N 6967
G
1/8W
TO247
75R
FLMP
S
D19 R53
1/4W
6R2
0A2 BAT85
.
R57
1N5248B
100N 1U 1M
D20
C34 C35 RAD R58
18V0
0R047
100V 63V 0W5
.
-145V
R60
1K5
FLMP
R65
2N5551
1/4W
1K0
Q17
MINI
5107
R62
4K7
TO92
RAD
R66 5N6
1K0
C39
MINI
100V
C38
C142
100N 100V
WOOFGND
SILENT ON/OFF
MPSA92
Q19
5114
TO92
RAD 2N5638
82K
1/4W Q20
WOOF_SILENT
R72 R71
5119
180K
TO92
D24 MINI
4148
+4V7_LS -15V_MOD WOOFGND
U8:B
6887
+56V
D
IRFP140N
Q12:A
N 6931
G
TO247
.
S
D3
+22V
D2 0W5
MR854
16V0 1N5246B
.
BDX53C
Q2
6912
Bias accross TP1 & TP2
TO220
= 0.1mV - 5mV
TP1
R11
R12
0R47
0R47
FLMP
FLMP
R17 R18 3
0R47 0R47
2N2
TP2
FLMP FLMP HORN-NEG
C118
400V
.
BDX54C
HORN
Q10
R220
6911 6R2
TO220 . S1
1N5246B 16V0
D10
0W5 D9 -22V
4
MR854
HORN-POS
IRFP9140N
Q1:A
6932
HORNGND
TO247
.
-56V
3U3
C20
140V
3U3
3U3
C51
C22
340V
140V
3792 L1
5
288UH
NEG-WOOFER
S2
WOOFER
3U3
C31
140V
6
POS-WOOFER
74HC14N
U9:C
PSGND
IN OUT
5 6
6603
74HC14N
U9:E
IN OUT
11 10
6603
74HC14N
U9:F
IN OUT
13 12
6603
WOOFGND
74HC14N
U10:B
IN OUT
3 4
6603
74HC14N
U10:D
IN OUT
9 8
6603
74HC14N
U10:F
IN OUT
13 12
6603
74HC14N
U10:E
IN OUT
11 10
6603
+4V7_LS
Product
NX750P
NX750P PCB# M1231 Sheet
Date: Tue Sep 04, 2012 Rev: V07
Filename: M1231V07sch.sch2006
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