YORKVILLE MC12D Service Manual page 26

M1173 Database History
MODEL(S):-
MC12D
# DATE VER# DESCRIPTION OF CHANGE
1 28-AUG-2009 1v00 Released for production
2 . . .
3 . . .
4 25-SEP-2009 . PC7877: permanently substitute YS#2328 with YS#2344
5 28-SEP-2009 2v00 PC7846: Add R1 and R2 #4852
6 30-SEP-2009 2v00 PC7848 / PC7848: connect RCA input jacks GND to IG
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
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
BC550C 1 14 1
1 4 1 4
BC560C 1
+V 8 2 13 2
A
2 7 3 12 3
B
4 +V -V 4 +V -V
3 6 11
4 -V 5 5 5
10
6 6
9
2 3 2 3
7 7
TL072 8
C B E
TO-92
MC33079P
TL074CN
SEE LAYOUT DIAGRAM
MODEL(S):-
MC12D
# DATE VER# DESCRIPTION OF CHANGE
1 D V
2 D V
3 D V
4 D V
5 D V
6 D V
MODEL(S):-
MC12D
# PC# PENDING CHANGE
1 PC X
2 PC X
3 PC X
4 PC X
5 PC X
6 PC X
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
M1173 Pot List
AP14
MODEL(S):-
REF FUNCTION PART#
P1 Trim1 4470
P2 Trim2 4470
P3 Trim3 4470
P4 Trim4 4470
P5 Trim5 4470
P6 Trim6 4470
P7 Trim7 4470
P8 Trim8 4470
P9 Gain9/10 4465
P10 RCA Level9/10 4465
P11 Gain11/12 4465
P12 RCA Level11/12 4465
P13 Phones 4465
R F P
R F P
R F P
R F P
R F P
R F P
R F P
R F P
R F P
14
R F P
13
R F P
12
11
10
9
8
"STYLE_P34"
"STYLE_P35"
M1173 PRODUCTION NOTES
M1173 Drilling History
1. WHERE INDICATED, BREAK PANEL IN TWO BEFORE CLINCHING.
N
N
N
N
N
N
M1173 Pending Changes
KNOB {NEW}
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N
K N