YORKVILLE TWO Series, Service Manual

Page: 29 / 45

Product
Date:
Filename:
PCB# of Sheet
Rev:
4 4
V09
M1231V09SCH.sch2006
NX750P
Wed June 09, 2021
M1231 NX750P
N453
N454
N446
N442
N451
N427
N434
N428
N436
N431
N430
N429
N432
N440
+56V
N278
N441
N426
N433
N443
N456
N437
N444
N457
N438
N445
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
NET00041
NET00217
N447
N459
NET00053
PSGND HORNGND
SC5
PSGND LVGND
SC6
N448
LVGND
PSGND
J8
NET00246
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
LVGND1 LVGND1
P1:B
N435
NET00082
LVGND1 LVGND
SC8
IGND LVGND
+24V
PSGND WOOFGND
SC7
NET00219
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
BREAK
HEATSINK
+24V
NET00156
LVGND
SC9
LVGND1
LVGND3
SC4
LVGND
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
HEATSINK
-15V
NET00053
_X65
NET00043
LVGND4
SC10
LVGND
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
NET00152
N450
HEATSINK
NET00221
N449
1
XC12
BREAK
XC42
1
XC96
1
XC4
BREAK
RTV_HOLES
BREAK
BREAK
XC52
BREAK
BREAK
BREAK
XC13
BREAK
BREAK
-15V
-22V
N455
NET00221
HORNGND
+15V
BC2
NET00219
4 19 24
x3
C63:C
LVGND1
NET00217
BC3
RTV_HOLES
RTV_HOLES
1
XC59
XC47
BREAK
BREAK
1
XC74
BREAK
BREAK
BREAK
XC14
BREAK
BREAK
BREAK
1
XC61
1
XC83
XC16
BREAK
BREAK
RTV_HOLES
RTV_HOLES
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
XC31
BREAK
BREAK
+4V7_LS
X1
XC43
N425
4 19 24
x3
C123:C
X2
NET00025
NET00055
+56V
SC1
NET00204
5 20 25
x3
C63:D
P2
BC4
RTV_HOLES
RTV_HOLES
1
XC89
1
XC79
1
XC78
RTV_HOLES
RTV_HOLES
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
BREAK
XC29
1
XC3
EC1
XC20
1
XC70
BREAK
BREAK
1
XC62
RTV_HOLES
1
XC7
XC26
DPDT1
SILENT
NET00043
6967
Q14:B
SC2
BREAK
BREAK
XC53
BC1
1
XC76
1
XC66
RTV_HOLES
1
XC65
1
XC68
1
2
XC111
RTV_HOLES
RTV_HOLES
1
XC90
1
XC80
XC51
1
2
XC100
BREAK
BREAK
XC19
BREAK
BREAK
BREAK
BREAK
WOOFCLIP
_X64
NET00043
6932
Q1:B
SC3
XC49
BREAK
1
XC60
-145V
RTV_HOLES
1
XC77
1
XC67
N458
BREAK
XC21
BREAK
BREAK
BREAK 1
XC5
BREAK
N439
+22V
XC39
1
XC64
XC48
XC33
BREAK
BREAK
BREAK
1
XC10
XC40
P
S
G
N
D
PSGND
HEATSINK
3 18 23
x3
C63:B
XC25
XC28
1
XC69
5 20 25
x3
C123:D
XC23
1
XC8
1
XC107
1
XC82
XC35
1
XC22
XC41
1
XC95
XC45
XC37 XC50
J111 (YS#5119)
D S G
TO-92
MPSA92 (YS#5114)
MPSA13 (YS#5105)
MPSA06 (YS#5103)
2N5551 (YS#5107)
2N5401 (YS#5108)
E B C
TO-92
LM311 (YS#6640)
DIP8
B E
TO-92
C
BC560C (YS#5102)
BC550C (YS#5101)
DIP14
74HC86N (YS#6605)
C B
TO-126
E
MJE340
IR2110 (YS#6887)
DIP14
I G O
MC7815CT (YS#6871)
TO-220
"STYLE_P25"
BREAK
BREAK
BREAK
RTV_HOLES
BREAK
BREAK
DPDT3
TP1
-56V
NET00152
NET00156
NET00053
NET00043
LVGND2 LVGND
LEDGND LVGND1
BREAK
BREAK
NET00246
BREAK
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
BREAK
BREAK
RTV_HOLES
XC15 XC27
1
XC2
XC46
BREAK
BREAK
BREAK
1
XC97
1
XC84
1
XC71
1
XC88
1
XC75
XC30
1
XC6
BREAK
+4V7_LS
BREAK
1
XC1
LVGND2
NET00082
LVGND2
3 18 23
x3
C123:B
NET00025
NET00053
NET00206
6931
Q12:B
6967
Q15:B
-56V
1
XC9
RTV_HOLES
BREAK
BREAK
BREAK
BREAK
BREAK
1
XC94
1
XC81
RTV_HOLES RTV_HOLES
1
XC73
1
XC86
+145V
BREAK
RTV_HOLES
BREAK
BREAK
1
XC93
1
BEC1
BREAK
XC17
W1:C
1
2
XC108
W14 0
LEADS & PINS REFERENCE
NSL-32SR2 (YS#6858)
OPTO
XC44
1
XC18
1
XC11
1
XC99
XC38
DIP14
74HC74N (YS#6964)
MC33078P (YS#6840)
NE5532N (YS#6884)
DIP8
TO-247
IRFP140N (YS#6931)
IRFP9140N (YS#6932)
IRFP23N50L (YS#6967)
G D S
G I O
MC7915CT (YS#6872)
TO-220
MC33079P (YS#6804)
DIP14
POTENTIOMETERS AND KNOBS
C
TO-220
B E
BDX54C (YS#6911)
BDX53C (YS#6912)
13
10
7
4
1
9
11
12
8
#
2
3
5
6
VER#
MODEL(S):-
DATE DESCRIPTION OF CHANGE
ADDED. X1 REF REMOVED IN LAYOUT
PC#7356, 7701, AND 7757 - PAD UPDATE, XLR MTG HOLE
V
V4.00 11-MAY-2009
D
BA WILL PUT 33K,470R,100N AND 10U AS SHOWN
PC#7453, ONLY FOR NA. REMOVE C19 AND R89 FROM AI.
10U #5281 C19 1U #5254 TO 4U7 #5258
56K #4835, R89 1K #4981 TO 56K #5018, C23 22U #5631TO
PC#7261, N.A. VERSION CHANGE R152 150K #4839 TO
D34 AND D43 1N4148 #6825 TO BAT 85 #6733
ONLY M1231A CE VER. R157 10K #4940 TO 3K3 #4938
.
V3.03
.
.
V3.02
.
.
.
01-FEB-2008
.
.
22-AUG-2007
.
.
R177 4K7 #4982 TO 15K #4979 .
.
M1231.PCB_DATABASE_HISTORY
NX750P
. . PC#7398, ADD CROWBAR CIRCUIT AND CHANGE FUSE
AT THE SAME TIME SEE PRODUCTION NOTE . .
02-NOV-2010 V5.00 ADDED MOLEX CONNECTORS FOR TRANSFORMER.
12
9
6
3
13
10
11
7
4
1
2
5
8
V09 15-DEC-2014
V05
02-FEB-2011 V05 PC8185: CHANGE #3453 TO #4100 GG
ELIMINATED THE NEED TO TACK ON PARTS.
03-NOV-2011 V06 PC8244 - CHANGED PADS ON 3696 RELAY - ML
ADDED TRACE BETWEEN ADJACENT
PADS OF C95 & C96. - ML
.
.
.
.
.
.
.
.
PC8326 - MOVED Q16, C97 & C98.
PC8325 - UPDATED HOLE SIZES FOR CONN 4151 - ML
14-NOV-2011 . FIXED PSU NET NAMES AS PER PAUL B. - ML
PC8448: #3392, #4100 new pattern, move DS to BOT GG V07 31-AUG-2012
V08 16-JUL-2013
. .
PC8545: Moved vias from under resistors. - ML
PC8553: Removed pattern for RoHS limiter board. - ML
01-APR-2014 . PC8624: New faceplate / Changed LEDs to hand. - ML
PC#8734:D28 and D36 added to 7815,7915 regulators O/P.
N.Am. CE
R145 4k99(#6128) 5k6(#6141)
R152 150k(#4839) 56k(#4835)
C23 22u(#5631) 33u(#5961)
C19 1u(#5254) 4u7(#5258)
R89 1k(#4981) 220k(#6126)
R124 2k(#6113) DNS
U15 (#6858) DNS
X3 (#4599) DNS
U23 (#6858) DNS
W5 DNS (#3709)
W29 DNS (#4036)
74HC14N (YS#6603)
DIP14
REF PART#
MODEL(S):-
FUNCTION KNOB
#9916
#9915
#9917
#9915
#9917
N
N
N
N
N
N
N
GREY
RED
GREEN
RED
GREEN
K
K
K
K
K
K
K
#4434
#4432
#4435
#4432
#4434
P
P
P
P
P
P
P
MAIN GAIN
MIC GAIN
BASS CONTROL
CD/LINE GAIN
TREBLE CONTROL
F
F
F
F
F
F
F
P1
P2
P3
P4
P5
R
R
R
R
R
R
R
NX750P
COLOR
M1231 - POTS LIST
13
10
7
4
1
9
11
12
8
#
2
3
5
6
VER#
MODEL(S):-
DATE DESCRIPTION OF CHANGE
PC#7167, ENLARGE HOLE SIZE FOR #3522
37K4 1% 1/4W. REPLACE R78 WITH #4611
V3.01
.
FEB 07 2007
.
PC#7052:GT:Q14&Q15 6914 IRFP350->6967 IRFP23N50LPBF
PC7003:GT:R9 #4979 15K->#6104 2K2, ADD 8921 WASHER
PC#6979:GT:R6&R23 #4815 12R->#2038 11R FUSIBLE
C102 FROM 22N #6435 TO 100N #5242
FIVE LEG #5862 3300U & FORCE UPDATED BOARD (M.R)
CHANGED POWER SUPPLY CAPACITORS TO NEW
PC#6772: REV. WIRE COLORS ON WOOFER & HORN (GT)
.
.
.
.
.
V2.00
.
OCT-31-2005
SEP-21-2005
.
.
MAY30th 2005
NOV-26-2004
DEC-13-2005
M1231.PCB_DATABASE_HISTORY
NX750P
AUGUST 2004 V1.00 MADE FROM M1158-V.200
AH, PC#7136, REPLACE R77, R81 AND R82 WITH #4686
. .
V2.01 AUG-16-2006
OCT 16 2006 V3.00 PC#7178, Updated limiter for RoHS compliance
AH, PC#7205, C37 100N #5212 TO 470P #5201