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Philips MMX450/37 Service Manual page 35

Digitale a/v surround receiver

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MEASUREMENT REFERENCES TO LAYOUT ON PAGE 10-9
IC7641
IC 7641
Can be measure via Test point
Pin
on component side monoboard
16
TP 1
17
TP 2
18
TP 3
8
TP 4
9
TP 5
10
TP 6
3
TP 7
2
TP 8
4
TP 9
26
TP 10
27
TP 11
33
TP 12
36/40/43
TP 13
41/42
TP 14
39
TP 15
19
TP 16
34
TP 18
25
TP 19
24
TP 20
12
TP 21
20
TP 22
21
TP 23
IC7601
Can be measure via Test point
IC 7601
on component side monoboard
Pin
5
TP 69
4
TP 70
8
TP 71
3
TP 72
IC7503
Can be measure via Test point
IC 7503
on component side monoboard
Pin
5
TP 73
4
TP 74
8
TP 75
3
TP 76
Tr 7621
Can be measure via Test point
Tr7621
on component side monoboard
B
TP 96
C
TP 97
E
TP 98
10-2
Funtionality
Left in
MDM Left in
6 CH Front left in
Right in
MDM Right in
6 CH Front Right in
4,7V
4,7V
4,7V
4,7V
4,7V
Right out
Ground
9,4V
4,7V
8,7V
Left out
4,7V
4,7V
4,7V
4,7V
4,7V
Funtionality
Headphone Amp L in
-13,5V
12V
Headphone Amp R in
Funtionality
Right in
-12V
11V
Left in
Funtionality
-1,5V
Ground
Headphone Amp L out
IC7642
Can be measure via Test point
IC 7642
on component side monoboard
Pin
16
TP 24
17
TP 25
18
TP 26
8
TP 27
9
TP 28
10
TP 29
3
TP 30
2
TP 31
4
TP 32
26
TP 33
27
TP 34
33
TP 35
36/43
TP 36
40/41/42
TP 37
39
TP 38
19
TP 39
34
TP 40
25
TP 41
24
TP 42
12
TP 43
20
TP 44
21
TP 45
Tr 7622
Can be measure via Test point
Tr7622
on component side monoboard
B
TP 99
C
TP 100
E
TP 101
Tr 7653
Can be measure via Test point
Tr7653
on component side monoboard
B
TP 86
E
TP 88
Tr 7658
Can be measure via Test point
Tr7658
on component side monoboard
B
TP 83
C
TP 84
E
TP 85
Funtionality
4,7V
MDM Center in
6 CH Center in
MDM Subwoofer in
MDM Subwoofer in
6 CH Subwoofer in
4,7V
4,7V
4,7V
4,7V
4,7V
Subwoofer out
Ground
9,4V
4,7V
8,7V
Center out
4,7V
4,7V
4,7V
4,7V
4,7V
Funtionality
-0,5V
Ground
Headphone Amp R out
Funtionality
-1,8V
Center mute
Funtionality
5V
-13V
5V

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Mfx450/17