Text preview for : 16_02_02.pdf part of PANASONIC KX-FT938 SERVICE MANUAL



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(1)

+5V

)

R77

NC

+5V R83 1K

R86

NC C68

)

) (
NC

(

(

C

A K

PC6
2

D10
3 4

NC
NC

FAX TX signal FAX RX signal

E C E A PC5

D13

)
Q12

1

(2)

K

(
NC

)
)
C67

R84

D15

(

NC

)

( ) NC C52 K680p )
R85 NC

)

R88

NC

NC

(

(

Q9

(3) (4)

AG

(

AG

(

C53 K680p

R41

JJ1

L31

(
50V2.2u L19
1

)
NC 300/310V

TO TEL LINE CN3
1 a 2 b

(5) (6)

R54

NC

RLY1-1

(
220 1/4W C43 R35 22K
1 4

)

4 3 5

L32 W5NL5T 3000V

SA1

2

3

ZNR1

4

POS1

JJ2

R38 47K 1/2W

2

3

NC
C38 250V1u
AG

(8)
PC1
C E AK KA

(

JJ4

L25

NC

)

(

NC

)

SA2

(7)

(

PC2

JJ 3

K0.01u

NC

+5V

(PU AT DIGITAL BOARD)

)

L33

TO EXT. TEL CN4 NC

D4 5.6V
AG

D5 5.6V

R45

L26

()
1 b 2 a

(
22k 1/2W

) NC

(9)

(10)

R48 4.7K

C50 K0.056u Q8 R63 1M

R61

DA1

T3

NC
3

R62

NC )

( NC

) NC

)

NC

4

1A

2K 1K2A

)

()

(

)

2 1

(

R59

(

NC

6
C65

(

+24V

AG

AG

(11) (12)

10K

K0.1u

D8
1

C34 J120p R42 C47 820K R57 6.3V47u 330 1.5K R55 L17 0

+5V

Q7

AG

IC1-2

6 5

R49 C36 D10p R50 +2.0V

10K

C41

K0.027u
AG

(13)
2.2K

7

L23 L21 FLT3
8

10K

C40

K0.027u

2

R60

C51

RLY1-2

NC

CN2
1 HSMIC 2 HSSP+ 3 HSSP4 HSMIC +

220K

( ) NC

R40

R44

C37

1 2 3 4

L14

K0.01u

R52 22

1.5K

C46

C48

L15 0

K0.01u R56

0

+5V

7 6 5

AG

47K

6.3V47u

R51

C42

C44

L16

K4700p

D6

C39

AG

C45 16V10u
AG

R43

AG

330

D7

AG

C49

0

K0.1u

18K

K0.01u

(14)

L11

C33

R46

0

Q6

( ) NC

R58

L22 L24

0

KX-FT938FX : ANALOG BOARD SCHEMATIC DIAGRAM