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(1)
NC
33 1/2W
)
C55 ( ) NC
R65 R66
C3p
+5V
R71 ) ( NC NC A
K
R70 ( ) NC
R69
(
NC
NC R68 ( ( NC Q10 )
R67
NC
R10 75K C8 J270p 10K
+24VA
PC4 C
E
NC
+2.0V
R2
C54 50V10u
NC
NC C56 ( ) NC
(
)
Q11
6.8K
C60
) NC
D12
L7 BEAD
12K
(2)
R72
)
C69
(
AG
(3)
T1
R5 0 D1
C4 50V4.7u C7 4.7V
IC2-1
1
8
2 3
C13
R13 D10p R18 56K
56K C17 K0.039u C21 K0.039u
R81 5.6V 5.6V C29 K0.01u 0 D2
300:600
4 3 2
(4)
C63
Z0.1u
4
390 1/4W
6
1
K0.1u
C26
L4 BEAD
R26
+12V
AG
AG
R82 0
BEAD
D3
L3
AG
(
) NC
C27
R27
NC
R11 1.8K 75K R14 C9 J270p K0.047u R15
0
Q13
(5)
R87
)
C66
C18
) NC
R22
0
3.6K
C14
(
AG
(
AG
NC
)
( )
(
)
NC
(6) (7) (8)
K0.01u
AG
3.9K
C19
R23
C64 +5V R24 +24V L2 0 C23 C11 K0.1u R16 D10p 24K C22
(
)
NC
R91 C28 0 50V4.7u
300K J120p
(
CN1
+24V AG +5V PAPER LINETX TONE1 RLY CPC JAM 1 2 3
(9)
6 7 5
C32 R39
J39p 750K +5V +2.0V
IC2-2
4 5
AG
L12
R47
0
C12
6
R17 47K
R21 39K
C25 K0.022u
0
K0.1u
7 8 9
IC1-1
1
8
2 3
(10)
C35
) NC (
4
R36
2.2K
C31 Z0.1u 0
P_SHORT 10
AG
NC
1K 2A
BELL/DC N 11 HOOK 12
1A2K
(
DA2
)
AG
L1
LINERX 13 MONRX 14 H/STX_MUTE 15 H/SRX 16
L13
(11) (12)
R29 5.6K R33 C72 L34 JJ 5 Z0.1u 1 SW 1
2 4 1 3
L10 BEAD NC
R32 36K
C30 K0.1u
(13)
PAPER SENSOR SW
JAM SENSOR SW
SW 3
2 4 1 3
Q2 R28 12K Q3
(
)
NC C2 K0.01u
(PU AT DIGITAL BOARD)
AG
C5 R30 K0.01u
(PU AT DIGITAL BOARD)
AG
(
6.8K
AG AG
FG2
AG
+5V
+24VA
+24V
R34 0
( NC )Q4
)
HOOK SENSOR SW
SW2
1 2 3
(14)
R37
Q1 L6 +2.0V 10K 0
) ) NC
R25 220K R19 R31 330K C16
10K
(
R8
R1 100 K0.01u
4
5
6
+12V
(
)
L5
AG
(
35V33u C71 C24 Z0.1u
AG AG
) Q5
NC
6.3V47u R9
C10
(PU AT DIGITAL BOARD)
AG
0 16V10u C20 Z0.1u R20 220K C15
( ) NC
C1
AG AG AG AG
10K
C3
C6
(
NC
NC
(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