YORKVILLE PSA1s Instructions De Service page 11

M1449 PCB HISTORY
MODEL(S):-
PSA1s
# DATE VER# DESCRIPTION OF CHANGE
1 03-JUN-2011 V01 N
2 28-NOV-2011 V01 PC8329 - MARKED 'WOOFER SHUTDOWN' CIRCUIT
3 . . PARTS AS DNS. - ML
4 19-DEC-2011 V02 PC8358 - YS#4100 XLR changed to YS#4135. - ML
5 . . Changed R65/R67 from YS#6459 to YS#5124. - ML
6 . . Renamed R65/R67 to ZD65/ZD67. - ML
7 . . Changed R39/R40 from YS#6123 to YS#6116. - ML
8 . . PC8313 - C44 moved away from U9. - ML
9 . . Force updated large PSU caps with slots. - ML
10
07-MAY-2012 . PC8447 - Changed C43 from 5216 to 5212. - ML
11 12-JUL-2012 . PC8458 - Changed pot 4434 to 4459. - ML
12 D V N
13 D V N
1 D V N
2 D V N
3 D V N
4 D V N
5 D V N
6 D V N
7 D V N
8 D V N
9 D V N
10 D V N
11 D V N
12 D V N
13 D V N
1 D V N
2 D V N
3 D V N
4 D V N
5 D V N
6 D V N
7 D V N
8 D V N
9 D V N
10 D V N
11 D V N
12 D V N
13 D V N
LEAD/PIN REFERENCE
2N5401
1
2N5551
MPSA06
2
MPSA13
3
1
MPSA43 +V 8
4
A
MPSA56
2
7
5
B
MPSA63
3 6
6
4 -V
5
7
TL072
E B C
SEE LAYOUT DIAGRAM
16 15 14 13 12 11 10
14
1 4
13
12
+V -V
11
10
9
V-
2 3
8
1 2 3 4 5 6 7
TL074
LM13600
MC33079
MODEL(S):-
# DATE
1 D
2 D
3 D
4 D
5 D
6 D
MODEL(S):-
# PC#
1 PC
2 PC
3 PC
4 PC
5 PC
6 PC
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
MODEL(S):-
REF
P1
R
R
R
R
R
R
R
R
R
R
R
9
8
"STYLE_P32"
M1449.PCB_DATABASE_HISTORY
PSA1s
VER# DESCRIPTION OF CHANGE
V N
V N
V N
V N
V N
V N
M1449 PENDING CHANGES
PSA1s
PENDING CHANGE
X
X
X
X
X
X
M1449 Potlist
PSA1s
FUNCTION PART# KNOB {NEW}
Level 4432 8653 N
F P K N
F P K N
F P K N
F P K N
F P K N
P K N
F
F P K N
F P K N
F P K N
F P K N
F P K N