Panasonic KX-FG2452CX Service Manual page 227

R628
REED
R627 100
PTOP
R626
COVEROPEN
(1)
INTERCOM
INTERCOM
+5VA1 +5VD
C702 R709
56p 680k
C701
R707
100n 470k
Q702
R701
10k
R708
68k
(2)
(3)
MDMRST
(4)
(5)
(6)
(7)
(8)
(9)
(10)
CISON
(11)
+3.3VD
FTG
R601 R603 22k
4.7k
Q602
(12)
Q601
VIDEO
TO CIS
+5VD
+24V1
Q701
TO SENSOR BOARD
CN506
R720
10k
1
REED
4.7k
2
GND
3
PTOP
100
4
COVEROPEN
+3.3VD
IC702
1 14
IO1 VDD
C712
2 13
OI1 CONT1
3 12
2.2n
OI2 CONT4
C715
R712
4 11
IO2 IO4
10k 56n 5 10
CONT2 OI4
6 9
CONT3 OI3
7 8
VSS IO3
+3.3VD
HSTXMUTE
MDMTXEN
TONE1EN
P_SHORT
CISLED
+5VD
103
104
105
106
107
R718
108
0
109
110
+5VD 111
112
L704
113
114
115
116
117
118
R714 470 XCLK
X701
119
120
121
122
123
124
125
126
127
128
C606
10n
+5VD
+5VD
C744
+12V +12V +24VA
100n
IC703
1
IO1 VDD
2
OI1 CONT1
3
OI2 CONT4
C740
4
IO2 IO4
100n 5
CONT2 OI4
6
CONT3 OI3
7
VSS IO3
+5VD
TEST
R726 3.9k
+24VA
C728
47p
IC704
R727
1 8
1OUT VCC+
330k
2 7
1IN- 2OUT
C745
3 6
1IN+ 2IN-
56p
R740 R744
4 5
VCC- 2IN+
330k 18k
C735
C749
100n
R742
+12V NC
C729
R731
180k
100n
C730 R737 C743
R732
Q703
56n 56k
27k 100n
+5VD
IC705
1 8
CD VO2
C747
2 7
FC2 GND
1u
3 6
FC1 VCC
4 5
VIN VO1
R738 10k
C739 2.2n
MDMCS
C731
100n
101 99
RESERVED5
GPO4
GPO3
DGND4
*CTS
*IRQ1
GPO2
GPO1
GPO0
VDD5
VGG
DGND5
*RESET IC701
XTLI
XTLO
RESERVED6
XCLK
GPI1
*IRQ2
SR3IN
RESERVED7
RESERVED8
DGND6
DVAA
AGND5
RESERVED9
C741
100n
EYESYNC EYECLK EYEXY
227
R763
10k
+5VD
+2.2VM
14
13
12
C755 100n
11
10
9
8
+5VD
+5VD
Q706
3
2
1
NC
NC
3
2
1
NC
Q705
R753 C760
R760 HSRX
6.8k Q704 15k 100n
64
NC6
63
MICBIAS_P
62
MICM_P
61 C765
MICP_P
60 100n
LINEIN_P
59
NC5
58
AGND3
57
*IARESET_P
56
FSYNC_P
55
SIN_P
54
SOUT_P
53
RESERVED3
52
CTRLSIN_P
51
MCLK_P
50
ICLK_S
49
RESERVED2
48
AVDD_S
47
SPKRM_S
46
SPKRP_S
45
AGND2
44
NC4
43
LINEOUT_S
42
VAA_S
41
VC_S
40
VREF_S
39
NC3
R756 100
R757
100
H/S TX
H/S RX
R748
1k
KX-FG2452CX: Digital Board_Main
KX-FG2452CX
+5VD
+6V
+6V
18
DG
17
LINERLY
LINERLY
16
BEL L
BELL
15
DCN
DCN
14
ALC
+5VD
ALC
13
+5VD_
P_SHORT
P-SHORT
12
C-IN
11
AG
10
+5V
9
LINE RX
8
LINE TX
+3.3V/BATIN 7
BATT
6
SP-
SP-
5
SP+
SP+
4
CHARGE-
CHARGE-
3
CH_CTL
CH_CTL
2
DG
1
ALC
CN507
ALC
ALC
CSI
CSI
CSO
CSO
CCLK
CCLK
CBUSY1
CBUSY1
CBUSY2
CBUSY2
CRESET
CRESET
HSTX
S_ENB
S_ENB
HSRX
C_IN
HSTX
BELL_TX
BELL_TX
CH_CTL
CH_CTL
SP+
CHARGE
CHARGE
SP-
+5VD
+5VM
FAX TX
FAX RX