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
9.2. POWER BLOCK DIAGRAM
9.3. KX-TES824UA/KX-TEM824UA 1AP BLOCK DIAGRAM
CO CID
CONNECTOR
Door Phone
Door Opener
CONNECTOR
BV Card
CONNECTOR
Exp308
(2AP)
/Exp208
(3AP)
Card
EXP
CONNECTOR
OGM Card
CONNECTOR
D-Sub
USB
POWER UNIT
CONNECTOR
CONNECTOR
25Hz
NINT AC
TONE(D)
(UART)RXD, TXD
(DSP)Serial Flash i/f
(APT i/f)PRX2-3, PTX2-3, PTXE1-3
CO4-8
Host i/f
TAM1-2, TONE
DOOR1, 2
PIO
ASIC
CROSS
POINT
ROM
SRAM
ASIC
8086
DSP
PIO
APT i/f
BELL
(APT i/f)PRX,PTX,PTXE1-3
(I/O)HOOK1-8,BELL1-8
Q1-4,TOE1,2,STD1,2
TONE
620,440,350Hz
DTMFR(1,2)
(For EXT)
EXT1-8
BGM
PAGE
CO1-3
DTMF
Generator
(I/O)
CO1
CO2
CO3
Paging jack
MOH jack
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
EXT8
KX-TES824UA/KX-TEM824UA 1AP BLOCK DIAGRAM
CN706
CN708
CN707
CN701, CN702
CN710
CN703
CN704
CN705
IC700
IC709
IC704
IC613, IC614
IC600
IC601
IC602
IC601
IC602
IC6
IC7
CN601
CN600
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KX-TES824UA / KX-TEM824UA /
9.4. KX-TEM824UA 2AP BLOCK DIAGRAM
Q1- 4,TOE1,2,STD1,2
CROSS
POINT
DTMFR(1,2)
(For EXT)
PIO
ASIC
(I/O)HOOK9-16,BELL9-16
CO4-6
EXT9-16
(I/O)
Exp308
(2AP)
/Exp208
(3AP)
Card
EXP
CONNECTOR
CO4-6
(APT i/f)PRX2,PTX2,PTXE1-3
CID4-6
Host i/f
CO4
CO5
CO6
EXT9
EXT11
EXT10
EXT12
EXT13
EXT14
EXT15
EXT16
KX-TEM824UA 2AP BLOCK DIAGRAM
IC10
CN501, CN502
IC510, IC511
IC500, IC501, IC502
9.5. KX-TES824UA/KX-TEM824UA POWER SUPPLY UNIT BLOCK DIAGRAM
Noise
Filter
Rectification
&
Smoothing
Controller
Over
Current
Detection
Rectification
&
Smoothing
Voltage
Detection
DC-DC
Converter
Ringer
Amplifier
FG
SW
(14)
Battery
Back up
+24V
GND
+27V
GND
+15V
-15V
3.3V
OUTPUT
AC75V 25Hz
INTPUT
20/25Hz
AC
Alarm
AC IN
L
N
AC Input
Power
Down
Detection
Primary Circuit
Secondary Circuit
Surge
Absorber
KX-TES824UA/KX-TEM824UA POWER SUPPLY UNIT BLOCK DIAGRAM
CN1
F1
F2
Z1
L1, L2
D10~D13, C5
D31
D32
D32
Q22
Q23
Q23
Q2
Q1
PC1
T1
D101, C101
PC31
IC601
Q201, T2, IC201
CN301
Q101
Q503
RL501
Q503
RL501
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KX-TES824UA / KX-TEM824UA /
10 EXPLANATION OF BLOCK DIAGRAM
10.1. MAIN UNIT (KX-TES824UA/KX-TEM824UA)
10.1.1. Power Supply Circuit
This power supply unit is a switching power supply. Power supply unit supplies DC voltage (+27V,+15V,-15V,3.3V) to main board
and other optional cards. And this unit has an adaptor circuit to back up battery. And this unit amplified the BELL signal (20/25Hz
sign wave outputted from the ASIC) and supply bell signal to the telephone.
and other optional cards. And this unit has an adaptor circuit to back up battery. And this unit amplified the BELL signal (20/25Hz
sign wave outputted from the ASIC) and supply bell signal to the telephone.
10.1.2. COL Interface Circuit
There are the interface circuits linking the CO line (CO1 -CO3) and the cross point circuit section.
In case of KX-TEM824, the system has 6CO line (CO1 - CO6).
In case of KX-TEM824, the system has 6CO line (CO1 - CO6).
10.1.3. Cross Point Circuit
This is a space division switching system for connecting the following:
The eight extension circuits with the eight CO, DTMF generator, DTMF receiver, INT-CALL ID, MODEM, OGM, VB, paging, music
on hold, tone etc.
It is composed of 3 C-MOS IC´s. (8 X 16 matrix: 2pcs and 4 X 8 matrix: 1pce).
*In case of KXTEM824, the system has 6 C-MOS IC´s (8 X 16 matrix: 3pcs and 4 X 8 matrix: 2pce, 8 X 8 matrix: 2pce).
The eight extension circuits with the eight CO, DTMF generator, DTMF receiver, INT-CALL ID, MODEM, OGM, VB, paging, music
on hold, tone etc.
It is composed of 3 C-MOS IC´s. (8 X 16 matrix: 2pcs and 4 X 8 matrix: 1pce).
*In case of KXTEM824, the system has 6 C-MOS IC´s (8 X 16 matrix: 3pcs and 4 X 8 matrix: 2pce, 8 X 8 matrix: 2pce).
10.1.4. Intercom Circuit
This is the interface circuit of the single line telephone, and it is composed of 8 intercom circuit (ICM1-8) In case of KX-TEM824,
the system has 16 intercom circuits(ICM1-16).
the system has 16 intercom circuits(ICM1-16).
10.1.5. Power Failure Through Call Switching Circuit
KXTES824 have one power failure transfer circuit (CO1-EXT101).
In case of KXTEM824,the system has 2 power failure circuit (CO1-EXT101 CO4 -EXT109).
In case of KXTEM824,the system has 2 power failure circuit (CO1-EXT101 CO4 -EXT109).
10.1.6. Data Communication Circuit
The APT i/f module which performs communication with a private telephone machine is built in ASIC.
8ch are controlled per block. Control of 3 blocks (24ch) is possible for ASIC at the maximum.
8ch are controlled per block. Control of 3 blocks (24ch) is possible for ASIC at the maximum.
10.1.7. Control Circuit
A control block consists of only the [ASIC] CPU (compatibility with Intel 8086) (IC700), Flash ROM (8Mbit) (IC705), SRAM (4Mbit)
(IC704), and PIO ASIC (IC6). PIO ASIC mainly performs extension control and PIO built in ASIC CPU mainly performs extension
control. RTC (Real Time Clock) and SRAM inside CPU are backed up by the lithium battery in order to hold time, system data, etc.
(IC704), and PIO ASIC (IC6). PIO ASIC mainly performs extension control and PIO built in ASIC CPU mainly performs extension
control. RTC (Real Time Clock) and SRAM inside CPU are backed up by the lithium battery in order to hold time, system data, etc.
10.1.8. Tone Generator Circuit
The rectangle wave generated by the timer of ASIC is changed into sine wave with a low path filter, and various tones are
generated.
generated.
10.1.9. DTMF Generator Circuit
A DTMF generator is used for dispatch to outside line, and communication with the voice mail connected to the extension.
10.1.10. DTMF Receiver Circuit
The circuit which receives the Dial Tone Multi Frequency by which extension dispatch is carried out with the DTMF receiver
connected to the crossing point.
connected to the crossing point.
10.1.11. Int Call ID Circuit
FSK/Dial Tone Multi Frequency generated by DSP in ASIC are connected even to a crossing point through AMP. The circuit which
sends out a CALLID signal to the telephone connected to an extension by connecting the line of INT-CALL-ID with arbitrary
extensions.
sends out a CALLID signal to the telephone connected to an extension by connecting the line of INT-CALL-ID with arbitrary
extensions.
10.1.12. Modem Circuit
The MODEM signal generated by DSP in ASIC is connected even to a crossing point through AMP.
The circuit which connects the line of MODEM with arbitrary outside line, and enables MODEM communication with outside line.
The circuit which connects the line of MODEM with arbitrary outside line, and enables MODEM communication with outside line.
19
KX-TES824UA / KX-TEM824UA /
10.1.13. USB Circuit
The circuit which makes communication possible by PC and 1.1 standards by the USB controller in ASIC.
10.1.14. OGM Circuit
4M connected to ASIC by the memory controller in ASIC A maximum of 3-minute storing of OGM is possible to a serial flash Circuit.
10.1.15. Ring Signal Generator Circuit
This section generates the ring signal for the single line telephone. A 20/25Hz square wave is generated by the ASIC timer and sent
to low pass filter and the ringing signal amplifier circuit and stepped by BELL transformer, and then passed it through the ringing
signal switching relay to the single line telephone.
to low pass filter and the ringing signal amplifier circuit and stepped by BELL transformer, and then passed it through the ringing
signal switching relay to the single line telephone.
10.1.16. SMDR Interface Circuit
This is the RS232C interface port. When the port is connected to a printer. The port can be used to output the SMDR feature
recording messages and the contents of the system program.
recording messages and the contents of the system program.
10.1.17. Door Phone Interface
An intercom card interface consists of two intercom paths connected to a crossing point, and address data and CS signals.
10.1.18. OGM Interface
An OGM card interface consists of the memory control signal, and the address data and CS signal which are connected to ASIC.
10.1.19. Call ID Interface
A CALLID card interface consists of three CALLID signal lines from outside line, and address data and CS signal.
10.1.20. BV Interface
BV card interface consists of two BV telephone call paths connected to a crossing point, and address data and CS signals.
20
KX-TES824UA / KX-TEM824UA /
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