.
JAN/23/2008
14 DEC/20/2007
PC7444, ADD TWO CAPS, 1U 400VDC 10%
3V10
Revised per PC #'s 7192 and 7366.
SEE LAYOUT DIAGRAM
PIN CONFIGURATION
"STYLE_P25"
"STYLE_P32"
"STYLE_P21"
"STYLE_P34"
FUNCTION
OLD
NEW
REF
MODEL(S):-
PART KNOB
PART - KNOB
R
R
F
F
O
O
O
K
K
K
N
N
N
K
K
K
P1
P2
P3
LEVEL
SHAPE
HF ROLLOFF
FREQUENCY
.
4567
4569
8393
8394
8395
4434
4412
4436
9916
9917
9918
4537
M1200
LS800P
MPSA13
TO92
E B C
13
10
7
4
1
12
9
6
11
5
8
3
#
2
MODEL(S):-
PC#
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
PENDING CHANGE
X
X
PC
PC
PC
PC
M1200 PENDING CHANGES
LS800P
6631
Force update C1, C2 to get new pattern
Move RTV holes under C104,C113,C117,C101 to bad inserts
Add extra vias on eyelet parts-solder conn. not 100% on eyelets
Remove copper around heatspread holes(get covered @solder)
6639
6639
6639
PC
X
PC
X
PC
X
X
X
7192
7366
R73 was changed from 4K7 to 3K3.
Changed R193 and R192 to read 47R0.
12
9
6
3
#
13
11
10
5
4
8
7
2
1
DATE
MODEL(S):-
VER# DESCRIPTION OF CHANGE
SEP/11/2006
PC#7167 HOLE SIZE FOR #3522 SWITCH 0.031" TO 0.040"
M1200_DATABASE_HISTORY
LS800P
PC#6344 - Added C120 to stop osc. at mom. turn-off
C120 gets manually soldered across U4 for now.
PC#6637 CHANGE C81,C82,C85,C86 FROM 5206 TO 5213
2V1
.
2V1
2V2
.
PC#6669 Change C19,C23,C30 from 5212(100V) to 5865(250V)
Changes to PCB traces pending
9-OCT-2003
.
23-OCT-2003
27-JAN-2004
.
16-MAR-2004
22-OCT-2004
13-DEC-2004
3-FEB-2005
2V2
3V00
3V00
3V00
.
.
Removed W12, W33, W34 & W35
PC#6632 R5,R20,R21,R165 HOLES .042" TO .052"
GT:PC#6694:POTS CHANGED TO SAME VALUE, SHORTER
SHAFT STYLE: 4567 -> 4412, 4537 -> 4434, 4569 -> 4436
Update tabs for DS pcb. Add pads for subst 5242 cap.pc#6750
GT:PC#6931:SPKR 18/063Y8M -> #7459
.
.
Replace R73 #4943, 4K7 with #4938 3K3
.
.
.
IRFP31N50L
