Panasonic KX-FP342CX Service Manual page 235

TAD MODEL Only
(a)
+3.3VD
+3.3VD
(b)
NOT USED
(c)
IC522
R697
(d) 1 44
VSS VCC
2 43
(e)
CLE CE
ALE
3 42
ALE RE
FWR 4 41
WE R/B
5 40
WP GND
6 39
N.C. N.C.
7 38
N.C. N.C.
8 37
N.C. N.C.
(f)
9 36
N.C. N.C.
10 35
(g)
N.C. N.C.
13 32
N.C. N.C.
14 31
N.C. N.C.
15 30
N.C. N.C.
16 29
N.C. N.C.
17 28
N.C. N.C.
D[0] D[7]
18 27
I/O0 I/O7
D[1] D[6]
19 26
I/O1 I/O6
D[2] D[5]
20 25
I/O2 I/O5
D[3] D[4]
21 24
I/O3 I/O4
22 23
VSS VCC
(h)
(i)
(j)
R566
(k)
1K
(m)
R577 0
(n)
(p)
(q)
(r)
(26)(27)
(21)
(22)(23) (24)(25)
FCS
FRD
R/B_
HSRXEN
OF-MREN
MDMTXEN
+5VA1
TONE1EN
C600 R575 C570
J56p 10K K0.027u
C601 R570 C670
K0.1u K1000p
470K
R571 C567
Q508
1M NC
R572
C568
1.8M K1000p
R732
NC
R568 10K
Q511
R569 68K
+3.3VD
+3.3VD
(28)
(29) (30)
1 8
RA513
2 7
10K
3 6
4 5
+5VA1
IC509
C571 R579
1 14
VDD
K0.1u 30K
2 13
3 12
C572
R580
4 11
K0.01u
150K
5 10
6 9
7 8
VSS
C560 Z0.1u
C576
K0.1u
+24V +24VA
Q509
R581
+12V
10K
+12V
C579
R587
K0.1u
47K
(32) (33) (34)
(31) (35)
FAX TX Signal
FAX RX Signal
+5VA
C580
J39p
+12V
R585
470K
+24VA
2 8
1
3
IC511-2
4
C581 C586
R583 R594
33K K0.022u 6.8K K0.1u
Q524
Q510
R584
3.9K
R597
330K
C584
J180p
6
7
5
IC511-1
(37) (38)(39)(40)
AG_M
KX-FP342CX : DIGITAL BOARD (3/4)
(36)
3/4
+5VA1
TO
ANALOG BOARD
+5VA
CN517
1 AG
2 +5V
3 LINETX
4 LINERX
ON-MREN
ON-MREN
5
R593
HSTX
6
56K
HSRX
7
P-SHORT
P-SHORT
8
DCN
9 DCN
EXTHOOK
10 EXTHOOK
+24V
11 +24V
LINERLY
12 LINERLY
BELL
13 BELL
HOOK
14 HOOK
SPMUTE
15 SPMUTE
16 SPOUT
(41) (42)(43)