Philips FR975 Service Manual page 55

MEASUREMENT REFERENCES TO LAYOUT ON PAGE 10-8
IC7643
IC7504
PCS 105 725
IC 7643 Can be measure via Test point
Pin on component side monoboard
17 TP 47
18 TP 48
9 TP 50
10 TP 51
3 TP 52
2 TP 53
4 TP 54
26 TP 55
27 TP 56
33 TP 57
36/40/43 TP 58
41/42 TP 59
39 TP 60
19 TP 61
34 TP 63
25 TP 64
24 TP 65
12 TP 66
20 TP 67
21 TP 68
Can be measure via Test point
IC 7504
on component side monoboard
Pin
5 via R3614 TP 77
4 TP 78
7 via R3616 TP 79
8 TP 80
3 via R3613 TP 81
1 via R3615 TP 82
10-1a
Funtionality
MDM Surround L in
6 CH Surround L in
MDM Surround R in
6 CH Surround R in
4,7V
4,7V
4,7V
4,7V
4,7V
Surround Right out
Ground
9,4V
4,7V
8,7V
Surround Left out
4,7V
4,7V
4,7V
4,7V
4,7V
Funtionality
Rec - in Right
-13,5V
Rec - out Right
12V
Rec - in Left
Rec - out Left