YORKVILLE NX55P Service Manual page 8

PHANTOM SUPPLY
+44V
R10
4K7
RAD
2N5551
Q4
5107
1N5254B TO92
10U
D4
C7
27V0
0W5 63V
+24V
LVGND
FROM INPUT PCB
1
9 W1:A
LVGND
2
9 W1:B
HORNGND 3
9 W1:C
4
+15V
9 W1:D
5
-15V
9 W1:E
+24V 6
9 W1:F
7
9 W1:G
8
9 W1:H
9
9 W1:I
R34
-15V_MOD
1/4W
47K
MINI
C18
220P 100V
+15V
+15V_C
R38
1/8W
10R0
FLMP
100N MC33078P
C21
U2:C
100V
+/-15V_C
U2:B
-15V_C
WOOFGND
100N
C26
100V
R44
-15V_C
1/8W
10R0
FLMP C28
470P
-15V R45
1/4W
6K8
MINI
+15V_MOD
R51
1/4W
6K8
MINI
R56
1/4W
6K8
MINI
470P -15V_MOD
R59
C37 6K8
100V MINI
WOOFGND
+15V
FLMP
PSGND 10R0
W2:H 0
+15V_MOD
8 1/8W
R64
R105
+120V
12K W2:G 0
7
.
-120V 100N
W2:F 0
6
+/-15V_MOD 100V
+22V
W2:E 0
5
680P
-22V
C71 W2:D 0
4
100V
100N
+44V
W2:C 0
3
100V
-44V
W2:B 0
R73
2
-15V_MOD
1/8W
10R0
SILENT
100V W2:A 0
FLMP
1
C91
-15V
100N
HORNGND
+15V_MOD
+15V
100N 100N 100N
C53 C50 C47
100V 100V 100V
PSGND
100N
100N
C55
C58
100V
100V
-15V -15V_MOD
D5
SILENT ON/OFF
4148
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
MINI
+15V_MOD
+15V_MOD
R30
2K
MINI
LM311
2
+ U1
1N750ARL
100N
D12 3
C17 -
4V7
100V 0W5
D14
4148
MC33078P WOOFGND
-15V_MOD
R35
1/8W
R36 100R0
1/8W FLMP
U2:A
100R0
+15V_MOD
FLMP
LM311
2
+ U4
7
OUT
R42
3
-15V_MOD
1/4W - 6640
2K
MINI
0W5
100N
4V7
C27 D18
1N750ARL -15V_MOD
100V
100V
R43
C29
1/4W
10N 100V
47R
WOOFGND
MINI
R47
220N 1/4W
1M
C32
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
WOOFGND
47N
C36
100V
74HC14N
U9:A
IN OUT IN
1 2 3
6603
PSGND IN
9
R75 R69 R67 R68
8K2 8K2 8K2 8K2
. . . .
+15V_LS
C41
100N
1N5240BRL
D22 C42
10V0 100V
0W5
LVGND
+4V7_LS
C44
1N750ARL 100N
D23
C43
4V7
100V
0W5
-120V
+5V_MOD
100N 100N R83
C48 C49 100R0 +4V7_LS
100V 100V FLMP
U11
MC78L05ABPRM
IN OUT +5V_MOD
{Function}
GND
470N
PSGND 6728
C143 U5:E
TO92
100N 100N 100N
63V
C56 C57 C54
100V 100V 100V
-120V
PSGND
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 5108
100V MINI 0W5
5119 12V0
TO92 TO92
D7
TO92
1N5242B
HORNGND
R25
100K
RAD
MINI
22K
R32
+5V_MOD
100N 100N
C16 C52
100V 100V
7
OUT
U3:C
6640 6964 WOOFER AMP
R40
+4V7_LS
6964 U3:A 6964 U3:B
22K
74HC86N
MINI
U5:D
13
11
12
6605
74HC86N
WOOFGND
U5:C
10
74HC86N 8
9
U5:B 6605
4
-15V_MOD 6
+4V7_LS
5 U8:A
6605
R49
4K7
-120V
MINI
- 6640
3
100N
C33
OUT IR2110
7
100V
+ U7
2
LM311
R212
2K2
+4V7_LS
MINI
-120V
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
3N3
OUT R166
8
47K
6603
MINI 100V
R63
1K4
.
2N5401
-120V
Q18
5108
TO92
WOOFGND
R70
1K4
.
74HC14N
U10:A
IN OUT
1 2
6603
R74
1K4 R76 R77 R78 R147
1/4W 1/4W 0.6W 0.6W
.
4K12 37K4 18k7 18k7
0.1% . SMALL SMALL
470P
-120V WOOFGND
C45
100V
R79
1/4W
1K0
MINI
U6:D
470P
MC33079P
C46
+5V_MOD +4V7_LS 100V
R80 R81 R82
1/4W 1/4W 1/4W
4K12 37K4 37K4
0.1% . .
WOOFGND -120V
R1 R2
1/4W 1/4W
22K 2K21
MINI FLMP
680P
R3
C1 1N5242B
2K2 10U
100V D1
. C2
12V0
63V
0W5
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
C5
C6
5101
10P 500V 100V
BC560C R15 TO92
270R
R14
RAD
1/4W
18K
+
RAD
TO92
R16
2K2
MINI
Q8
5108
4U7 R23
4148 15P
C9 1/4W
D6 C10
63V 11R
FUSIBLE
100V
MJE340
D21
Q11
10U
1N5242B
6873_S
D11 C13
4148
TO126 12V0
63V
0W5
R24 R26
2K2 1/4W
2K21
MINI
680P FLMP
R27
C14
100R
100V
RAD
+120V
220P
R29
1K0 C15
MINI 100V
MPSA92
R31
0R047
Q13
.
5114
TO92
R33
1K5
FLMP
NET00206
D
IRFP23N50L
Q14:A
R37
G N 6967
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
NET00216
150K
+15V_LS
.
D
IRFP23N50L
Q15:A
R50
G N 6967
1/8W
TO247
75R
FLMP S
D19 R53
1/4W
6R2
0A2 BAT85
.
R57
1N5248B
100N 1U
1M
D20
R58
C34 C35 RAD
18V0
0R047
100V 63V 0W5
.
-120V
R60
1K5
FLMP
R65
2N5551
1/4W
1K0
Q17
MINI
5107
R62 TO92
4K7
R66
5N6
RAD 1K0
C39
MINI
100V
C38
C142
100N 100V
RAD
SILENT ON/OFF
82K
1/4W
TO92
R72
5114
Q19
MPSA92 R71 2N5638
D24 180K
Q20
4148 MINI
5119
TO92
+4V7_LS WOOFGND -15V_MOD
WOOFGND
U8:B NET00094
NET00095
NET00096
6887
+44V
D
IRFP140N
Q12:A
N 6931
G
TO247
S
D3
+22V
D2 0W5
MR854
16V0 1N5246B
BDX53C
Q2
6912
TO220
TP1 R11
R12
0R47
0R47
FLMP
FLMP
R17 R18 3
0R47 0R47 HORN-POS
2N2
TP2
FLMP FLMP
C118 YEL
400V
S1 #7461
BDX54C
Q10 1" 8R
6911
R220 HORN 40W
TO220 6R2
D10
.
-22V
1N5246B 16V0 BLK
MR854
0W5 D9
4
HORN-NEG
IRFP9140N
Q1:A
6932
TO247 HORNGND
-44V
3U3
C20
140V
3U3
3U3
C51
C22
340V
140V
3786 L1
5 NEG-WOOFER
233UH
BLK
S2
3U3
WOOFER
C31
140V
#7455
RED 12" 4R
450WPGM
6
POS-WOOFER
PSGND
74HC14N
U9:C
NET00002
IN OUT
5 6
6603
74HC14N
U9:E
NET00052
IN OUT
11 10
6603
74HC14N
U9:F
NET00058
IN OUT
13 12
6603
WOOFGND
74HC14N
U10:B
NET00093
IN OUT
3 4
6603
74HC14N
U10:D
NET00092
IN OUT
9 8
6603
74HC14N
U10:F
NET00090
IN OUT
13 12
6603
74HC14N
U10:E
NET00091
IN OUT
11 10
6603
+4V7_LS
Product
NX55P
NX55P PCB# M1309 Sheet
Date: Fri Jun 28, 2013 Rev: V08
Filename: M1309V08SCH.sch2006
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