YORKVILLE 50KW Service Manual page 19

M___ PENDING CHANGES
MODEL(S):-
{MODEL}
# 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
9 PC X
10 PC X
11 PC X
12 PC X
13 PC X
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
NOTE FOR MARCONI: CHECK N115, N117, N118, N119 MOVEMENT
SEE LAYOUT DIAGRAM
POTENTIOMETERS/SWITCHES AND KNOBS
M578A/M578B {TITLE}
MODEL(S):- 5OKB/50KW
REF FUNCTION POT/SW YS# KNOB
P1 GAIN-1 #4418 #8641
P2 TREBLE #4420 #8641
P3 BASS #4420 #8641
P4 GAIN-2 #4417 #8641
R F P K
R F P K
R F P K
R F P K
R F P K
R F P K
R F P K
R F P K
X578 PCB DATABASE HISTORY
MODEL(S):-
50KB/50KW
# DATE VER# DESCRIPTION OF CHANGE
1 JAN-2000 1.P0 PC#____ DERIVED FROM M512
2 . . POTS CHANGED TO STYLE 28
3 APR-2000 1.0P2 GROUNDS UPDATED, RCA JKS WIRES->JMPR
4 20-APR-2000 1.0P3 DELETE D11->D14, C12 15P->27P
5 23-NOV-2000 2.00 PC#6248 #3417 BRKTS MOVED DOWN .010
6 . . PC#6346 R21,ZD4 MOVED DOWN
7 07-FEB-2001 2.10 PC#6316 50KW C38 150N->220N
8 18-APR-2002 3.00 NEW PADS FOR FUSEHOLDER
9 08-NOV-2002 4.00 PC#6576 RESIZE TO ALLOW SHEARING
10 . . BEFORE ASSEMBLY NEW TAB HOLE SIZE
11 10-JUL-2003 5.00P0 N
12 2-SEP-2003 5.00P1 REV. C27, MOVE F1, ROUTING&DRILL HOLES CHANGED
13 22-SEP-2003 5.00P1.1 N
1 D 5.00P1.2 Moved F1 to give room to W7
2 25-NOV-2003 5.00 Change copper pour by X27 to stop the perception of a short
3 11-DEC-2003 5.00 Fixed position of shear holes
4 9-FEB-2004 5.00 Corrected J7 to be #3523
5 MAR-01-2005 6.00 GT:FIXED AC CE CLEARANCES
6 24-MAY-2005 6.10 PC#6904: ADD TARGETS TO CORNERS OF THE BOARD
7 07-JUL-2009 6.20 ADDED SCORE AND REMOVED SOME ROUTES
8 09-JUL-2015 VO7 Board changed from single to double sided.
9 D V N
10 D V N
11 D V N
12 D V N
13 D V N