Read Panasonic KX-T96191 Service Manual Supplement online
2005 Panasonic Communications
KX-T96191
(for U.S.A.)
Direct Inward System Access Card
Please file and use this supplement manual together with the service manual for Model No. KX-T96191,
Order No. KM49012431C0.
Order No. KM49012431C0.
Note:Supplement-1 to 2 have already been supplied as printed matter. So please refer to that.
ORDER NO. KMS0502004S1
F19
1 CHANGES
1.1. SUBJECT
Suffix
Reason for suffix change
D to E
Change of the main board. (PQUP739ZA
→
PSUP1283ZB)
1.2. SUFFIX LOCATION
2 SERVICE MANUAL OF THE NEW MAIN BOARD
(PSUP1232ZB)
2.1. CIRCUIT OPERATION
2.1.1. FUNCTION
DISA CARD is an optional card that automatically responds to the incoming signals on the CO lines without operator, and by
receiving the secondary dial (DTMF signals) that calls the specific extension, connects with the MODEM and between the CO
lines. The number of channels is 4.
receiving the secondary dial (DTMF signals) that calls the specific extension, connects with the MODEM and between the CO
lines. The number of channels is 4.
Function
Description
Sending OGM
Sending OGM (Out Going Message) stored in Record/Play IC to the CO line.
DTMF signal detection After sending OGM to CO line, detecting the incoming signal of DTMF.
Call between CO lines Four call paths for call between CO lines.
DTMF repeat
Call between CO lines Four call paths for call between CO lines.
DTMF repeat
When calling between the CO lines, receiving the DTMF and sending it to maintain the certain levelof the DTMF signals.
End of call detection
When calling between the CO lines, detecting the no tone, the cyclic tone and the continuous tone.
2 channels/1 path, total 8 channels.
2 channels/1 path, total 8 channels.
OGM record
Recording the OGM from the specific extension into Record/Play IC. Controlling the level by AGC circuit.
Only one channel is available as the recording channel.
Only one channel is available as the recording channel.
FIFO communication
Communicating between CPU on this card and main CPU through FIFO memory.
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KX-T96191
2.2. BLOCK DIAGRAM
#IOR,#IOW
#CPRCLK
#CPRCLK
IC60
FIFO
IC60
CPU
RESET
CIRCUIT
CIRCUIT
GND
POWER
SUPPLY
CIRCUIT
SUPPLY
CIRCUIT
+5.9V
-15V
+15V
#C4M,#CHS4
A.Bus
D.Bus
#SRST
Buffer
Buffer
Buffer
Buffer
Buffer
IC62
IC61
ROM
RAM
+5A
+5B
+5B
+5C
-5V
PATH0 3,OGM0 3
D0 7,A0 15,#RD,#WR,#RST,C2M
#CS1,2,DETA0 3,DETB0 3
CP0 7, #CPP1
PD0 3,#CE0 3,EST0 3
STGT0 3
STGT0 3
DHW-B1
UHW-B1
HW-Gate
control
control
DTMF
RECEIVER
RECEIVER
TONE DETECTOR
CODEC
CODEC
RECORD/PLAY
IC
IC
TONE DETECTOR
EST0,STGT0,#CS1
D0 3
DETA0
DETB0
#CE0,PD0, P/#R
DTMF
RECEIVER
RECEIVER
TONE DETECTOR
CODEC
CODEC
RECORD/PLAY
IC
IC
TONE DETECTOR
EST1,STGT1,#CS1
D4 7
DETA1
DETB1
#CE1,PD1, P/#R
DTMF
RECEIVER
TONE DETECTOR
CODEC
CODEC
RECORD/PLAY
IC
IC
TONE DETECTOR
EST2,STGT2,#CS2
D0 3
DETA2
DETB2
#CE2,PD2, P/#R
DTMF
RECEIVER
RECEIVER
TONE DETECTOR
CODEC
CODEC
RECORD/PLAY
IC
IC
TONE DETECTOR
EST3,STGT3,#CS2
D4 7
DETA3
DETB3
#CE3,PD3, P/#R
KX
-T
9619
1
3
2.3. EXPLANATION OF THE CIRCUIT OPERATION
DISA CARD consists of the following.
CPU Circuit.
FIFO (First In First Out) Memory Circuit.
OGM (Out Going Message) Record/Play Circuit.
DTMF Repeat Circuit.
End of Call Detection Circuit.
Highway Control Circuit.
CPU Circuit.
FIFO (First In First Out) Memory Circuit.
OGM (Out Going Message) Record/Play Circuit.
DTMF Repeat Circuit.
End of Call Detection Circuit.
Highway Control Circuit.
2.3.1. CPU CIRCUIT
Composition:
63C03
8 bit CPU (IC60)
ROM
32 kbite CPU (IC61)
SRAM
8 kbit CPU (IC62)
IC200, IC51, etc
Circuit Operation:
This circuit is a circuit which controls the DISA CARD according to the program in the ROM (IC61) by the CPU (IC60). It is
connected with main CPU on CPU CARD through the Parallel FIFO Circuit, and controls this card by following the
commands from the main CPU.
connected with main CPU on CPU CARD through the Parallel FIFO Circuit, and controls this card by following the
commands from the main CPU.
2.3.2. FIFO MEMORY CIRCUIT
Composition:
FIFO IC (IC56)
IC52, IC53, IC54, IC55, etc
IC52, IC53, IC54, IC55, etc
Circuit Operation:
FIFO Memory Circuit is a circuit which functions the data communication interface between the DISA-CPU and the main CPU
on CPU CARD. This circuit has each 64 byte (8 bit × 64) buffer in the up and down directions.
This FIFO memory is functioned by Gate Array (IC56).
on CPU CARD. This circuit has each 64 byte (8 bit × 64) buffer in the up and down directions.
This FIFO memory is functioned by Gate Array (IC56).
2.3.3. OGM (OUT GOING MESSAGE) RECORD/PLAY CIRCUIT
Composition:
Record/Play IC
(IC80A, B, C, D)
CODEC IC
(IC120A, B, C, D, IC150A, B, C, D)
AGC Circuit
(IC90, Q90, Q91, etc)
Circuit Operation:
This circuit is the circuit for recording/playing the OGM. There are 4 record/play ICs located above the one card.
It is possible to have a maximum recording of 30 seconds, when recording an OGM, the recording data goes through HWS and
is changed to an analog signal in CODEC IC. Then it passes through the AGC circuit and is recorded in the record/play IC
(IC80A, B, C, D).
By the record/play IC, the recorded voice signal is changed to PCM CODEC data by the CODEC IC. Then it is placed in the
HWR.
It is possible to have a maximum recording of 30 seconds, when recording an OGM, the recording data goes through HWS and
is changed to an analog signal in CODEC IC. Then it passes through the AGC circuit and is recorded in the record/play IC
(IC80A, B, C, D).
By the record/play IC, the recorded voice signal is changed to PCM CODEC data by the CODEC IC. Then it is placed in the
HWR.
2.3.4. DTMF REPEAT CIRCUIT
Composition:
CODEC IC
(IC120A, B, C, D)
DTMF Receiver IC
(IC101A, B, C, D)
Circuit Operation:
This circuit is a circuit which receives the DTMF signal (IC101A, B, C, D) through the highway once and sends to the highway
to cover the level reduction of the DTMF tone caused by the line loss during CO-CO call. Normally, output of this circuit is open,
and once it detects the DTMF signal at CO-CO call, the output connects with HWS of the up highway and then sends the DTMF
signal.
Also this circuit is used as the DTMF receiver (IC101A, B, C, D), and receives the secondary dial when the DISA signal
incoming.
to cover the level reduction of the DTMF tone caused by the line loss during CO-CO call. Normally, output of this circuit is open,
and once it detects the DTMF signal at CO-CO call, the output connects with HWS of the up highway and then sends the DTMF
signal.
Also this circuit is used as the DTMF receiver (IC101A, B, C, D), and receives the secondary dial when the DISA signal
incoming.
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KX-T96191
