KX-TES824UA, KX-TEM824UA, KX-TE82461X, KX-TE82474X, KX-TE82480X, KX-TE82483X, KX-TE82491X, KX-TE82492X, KX-TE82493X, KX-A227X, KX-TES824UAPP, KX-TEM824UAPP - Panasonic PBX Service Manual (repair manual). Page 16

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9 BLOCK DIAGRAM
9.1. SYSTEM BLOCK DIAGRAM
Tone
 
Po
w
e
r Switch
 
DP
H4 Card
 
BV2
BV1
DOOR1
 
DOOR2
 
BV Card
OGM
 Card
 
Ser
ial
Flash
PI
O
CO
8
Int.CID
3
BV
2
BGM
 
1
DPH 
2
INT 
4
Paiging
2
Tone
2
DTMF-R
2
DTMF-G
1
8port
 
Extension
 
Block
 
2port
 
Co
 
Block
 
PI
8port
 
Extension
 
Block
 
3port
 
Co
 
Block
 
PIO
 
 
 
Cross Point
 
DTMF-R
8port
 
Extension
 
Block
 
3port
 
Co
 
Block
 
 
 
Cross Point
 
Flash
 
ROM
 
SRAM
CPU
 
DSP
 
SRAM 8Mbit
 
CN710
DSP
#2
 
DSP
#1
CN707
 
DPH Block #1,
#2 
PIO
 
DPH Block #3, #4
CN708
 
 
 
 
 
 
CID Card #3
 
FPGA
PI
O
S/
P
FSK Detect 
x3 
Jack
 x8
 
 
 
Cross Point
 
Jack
 x2
 
Jack
 x8
 
Jack
 x3
 
Jac
k x
Jack
 x3
 
DTMF Detect 
Stutter Detect x3
 
 
CID 
Card
#1
Same as 
CID 
Card 
#3 
 
CN706
CN71
1
 
C
N
712
 
3AP
 Card
2AP
 Card
 
1AP
 Card
DTMF-G
for CO
 
CO1-3
 
ext1-8
CO
4-6
ext
9-16
CO
7-8
ext
17-24
RS232C
Bel
A
C
75V
 
25H
z
CN
60
0
Ext Paging
 
Ext Music
 
CN
601
Ho
st
 I
/F 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
AC
 IN
 
 
 
 
 
 
25H
z  
+1
5V
-1
5V
 
+3.
3V
 
2
2
USB
In
t. 
C
ID x
 3
BGM
MODEM(Rx, Tx)
OGM(Play, Rec) x2
Vo
lt
a
g
ch
e
c
R
e
ct
if
ica
tio
R
e
ct
if
ica
ti
o
n
 
 
battery
bac
k
up
 
cir
cu
it 
Over current
 
Detect ci
rcui
t
 
c
ontrol
 
cir
c
u
it 
V
o
lt
age 
 
c
h
ange
 
noi
s
e
 fi
lt
er 
L
 
  N
 
 
FG
 
Surge p
rotec
to
r
 
 
 
 
 
 
 
 
Ri
nger
 
Amp.
 
cir
cu
it
C
N
7
0
5
24
V
G
N
D
E
x
p
a
n
s
i
o
n
C
o
n
n
e
c
t
o
r
E
x
p
a
n
s
i
o
n
C
o
n
n
e
c
t
o
r
DTMF-R
KX-TES824
UA
/KX-TEM824
UA
 SYSTEM BLOCK DIAGRAM
+27V
POWER
SUPPLY
IC601
L1, L2
Z1
IC8
IC7
IC2A~C
IC1A~C
IC7
IC600, IC601, IC602
IC613 
IC614
IC511 
IC512
IC500
IC501
IC502
IC704 
IC705
IC701
IC702
IC703
IC700
IC10
IC6
IC705
IC704
IC700
CN703
CN704
IC1
IC2
IC3
IC4
CID 
Card
#2
Same as 
CID 
Card 
#3 
16
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