Panasonic KX-TES824UA / KX-TEM824UA / KX-TE82461X / KX-TE82474X / KX-TE82480X / KX-TE82483X / KX-TE82491X / KX-TE82492X / KX-TE82493X / KX-A227X / KX-TES824UAPP / KX-TEM824UAPP Service Manual ▷ View online
8 DISASSEMBLY INSTRUCTIONS
8.1. DISASSEMBLY INSTRUCTION
1. Loosen the top cover screw (A).
2. Remove the top front cover.
2. Remove the top front cover.
Note
The screw cannot be removed front the cover.
3. Remove the 2 bottom-cover screws (B).
4. Open the bottom front cover.
13
KX-TES824UA / KX-TEM824UA /
5. Remove the 2 screws (A).
6. Remove the power supply board cover.
7. Pull out the 4 connectors.
8. Remove the 1 screw (D).
9. Remove the power supply board.
6. Remove the power supply board cover.
7. Pull out the 4 connectors.
8. Remove the 1 screw (D).
9. Remove the power supply board.
10. Pull out the 1 connector.
11. Remove the 2 screws (A) and (C).
12. Remove the main board.
11. Remove the 2 screws (A) and (C).
12. Remove the main board.
14
KX-TES824UA / KX-TEM824UA /
Procedure:
•
•
•
• Insert the SW CABLE into AC POWER SWICH.
Caution:
•
•
•
• Be sure each colored wire is inserted to the correct lug (very important).
15
KX-TES824UA / KX-TEM824UA /
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
O
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
8
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
l
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
e
ch
e
c
k
R
e
ct
if
ica
tio
n
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
KX-TES824UA / KX-TEM824UA /
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