KX-T7730UA (serv.man5) - Panasonic PBX Service Manual Supplement (repair manual). Page 4

4

KX-T7730UA

SInce the main board was changed, the display on the board; PSUP1382ZD was also changed to PSUP1382YD.
Distinguish a change by this indication.
When replacing MAIN BOARD PSUP1382ZD with PSUP1382YD for Suffix J.

C44

C45

C46

C47

C48

C49

C50

C51

C52

C53

C54

C55

C56

C57

C58

C59

C60

C61

C62

C63

C66

Q13

E

Q14

E

C71

A8

G1

G2

D31

D32

D33

D34

M3

IC3

1

1 4

2 8

1 5

R43

R44

R45

R46

R47

R48

R49
R50

R51

R52

R54

R55

R57

R58

R59

R

R

R

R72

R79

R80

R206

A B C E

PSUP1382YD-A

PbF

PSUP1382YD-C

PbF

CN5

REF2

50

30

20

CN2

MP

MP

JK3

1

2

3

4

5

N1

N2

N3

N4

N5

N6

N7

N8

PbF

PSUP1382YD-B

MP