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M1330.PCB_DATABASE_HISTORY
MODEL(S):-
NX720S
#
DATE
VER# DESCRIPTION OF CHANGE
1
MAY 2006
1.00
MADE FROM NX750P M1231 V2.00 IN MAY 2006
2
D
V
M1231 HAD BEEN FULLY FORCE UPDATED ON MAY 2005
3
D
V
MAY 2006 FORCE UPDATED ALL COMPONENTS MODIFIED
4
D
V
WITH IN THE LAST YEAR USING TONY'S LIST. MR.
5
2008/03/11
.
Updated #6421 diodes for clinch.
6
24-MAR-2010 V02
PC7301: TAB 26 attribute change from GREEN to GRN/YEL
7
.
.
PC7530: Add note for install heatsink on board.
8
.
.
PC7757: Change layout for #3453
9
.
.
PC7813: Replace #4434 with #4432
10
D
V
N
11
D
V
N
12
D
V
N
13
D
V
N
M1330 PENDING CHANGES
MODEL(S):-
NX720S
#
PC#
PENDING CHANGE
1
PC
X
2
PC
X
3
PC
X
4
PC
X
5
PC
X
6
PC
X
7
PC
X
8
PC
X
PC
X
9
10
PC
X
11
PC
X
12
PC
X
13
PC
X
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
POT LIST
NX720S
MODEL(S):-
REF
FUNCTION
PART#
KNOB
{NEW}
P1
MAIN GAIN
#4434
GREY
#9916
P3
LOW PASS ADJ
#4436
RED
#9915
P4
BOOST ADJ
#4434
GREEN
#9917
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
INDICATES THERE IS GROUND CONNECTION UNDER SYMBOL
BETWEEN TWO DIFFERENT NETS. DON'T REMOVE.
SEE LAYOUT DIAGRAM
PRODUCTION NOTES
1. NOTE THAT THIER IS SEVERAL LINES ON THE DSBOTMASK LAYER.
THESE MAY BE USED FOR MARCONI TEST POINTS SO HAVE THIS LAYER
ON IF DOING ANY MODIFICATIONS.
2. MAKE SURE TO RTV ALL LARGE CAPACITORS TO SOMETHING CLOSE
3. C124 IS A FIXED DO NOT STUFF PART. CAN BE DELETED NEXT REVISION.
GG
**************IMPORTANT******************
4. ADD AMPLE RTV UNDER ENTIRE BASE OF OUTPUT COIL L1
5. LEADS FOR 5 WATT RESISTORS MUST BE BENT ON THE MACHINE
LEAD LOOP MUST NOT BE ABOVE TOP OF RESISTOR
J109
BC550C
BC560C
2N5638
C
B
E
D
S
G
TO-92
TO-92
IRFP9140N
IRFP23N50L
BDX54B-54C
BDX53B-53C
G
D
S
B
C
TO-247
TO-220
5 WATT
"STYLE_P32"
BD139
2N5401
BD140
2N5551
BD237
BD238
MPSA06
MJE270
MPSA13
MJE271
MPSA43
MJE340
MPSA56
MJE350
MPSA63
MPSA92
E
B
C
E
E
C
B
TO-126
TO-92
6. NUTS (8800) ON TOP AND SCREWS (8835) ON BOTTOM
NUTS HAVE TO BE RETORQUED AND LOCTITE
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