DOWNLOAD Panasonic KX-TS2352CAB / KX-TS2352CAW Service Manual ↓ Size: 1.1 MB | Pages: 32 in PDF or view online for FREE

Model
KX-TS2352CAB KX-TS2352CAW
Pages
32
Size
1.1 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / INTEGRATED TELEPHONE SYSTEM
File
kx-ts2352cab-kx-ts2352caw.pdf
Date

Panasonic KX-TS2352CAB / KX-TS2352CAW Service Manual ▷ View online

16
KX-TS2352CAB/KX-TS2352CAW
9 Disassembly and Assembly Instructions
9.1.
Disassembly Instructions
17
KX-TS2352CAB/KX-TS2352CAW
10 Measurements and Adjustments
10.1. Option Jumper Table
Note:
Refer to Bottom View (P.26)
18
KX-TS2352CAB/KX-TS2352CAW
11 Miscellaneous
11.1. CPU Data 
IC1: N5BCBZ000004
Clock frequency: 3.58 MHz
Operating range: 13~100 mA
1
VSS
28
LS  1
MFL  2
RO  3
V
DD
  4
A
GND
  5
STB  6
CI  7
MO  8
LLC  9
V
SS
 V
SS
HS/DP  10
OSC  11
MODE  12
C4  13
C3  14
C2  15
C1  16
R4  17
R3  18
R2  19
R1  20
FCI  21
LED  22
M1  23
M2  24
CS  25
V
SS
  26
LI  27
RI  28
U4
U5
C1
C2 C3
C5 C4
C6
Pin
No.
Symbol
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LS
MFL
RO
V
DD
A
GND
STB
CI
MO
LLC
HS/DP
OSC
MODE
C4
C3
   Line Current Sense Input
   MF Level Setting
   Receive Output
   Positive Voltage Supply
   Analogue Ground
   Side Tone Balance Input
   Complex Impedance Pin
   Melody Output
   Line Loss Compensation
   Hook Switch Input and Dial Pulse Output
   Oscillator Input
   Signalling Mode Select Input
   Keyboard Column
   Keyboard Column
15
16
17
18
19
20
21
22
23
24
25
VSS
V
SS
   EMC ground connection
26
27
28
C2
C1
R4
R3
R2
R1
FCI
LED
M1
M2
CS
V
SS
LI
RI
   Keyboard Column
   Keyboard Column
   Keyboard Row
   Keyboard Row
   Keyboard Row
   Keyboard Row
   Frequency Comparator Input
   LED Output Driver
   Microphone Input
   Microphone Input
   Current Shunt Control Output
   Negative Power Supply
   Line Input
   Receive Input
Description
 This is the input for sending the line current.
   A voltage divider connected from this pin to A  GND and VSS can be used to set the DTMF level.
   This is the output for driving a dynamic earpiece with an impedance of 140 to 300 
   This is the supply pin for the circuit.
   This is the analog(ue) ground for the amplifiers.
   This is the input for side tone cancellation.
   For complex impedance a capacitor should be connected to this pin.
   PDM output of the melody generator for tone ringing. Hi-Z when not active.
   Select pin for line loss compensation.
   LLC = AGND: 20-50 mA     LLC = VDD: 45-75 mA     LLC = VSS: none.
   This is an I/O that is pulled high by the hook switch when off-hook and an open
   drain pulls it low during break periods of pulse dialing and flash.
   Pin for ceramic resonator (3.58 MHz).
Row 6             MF only, 82/82 ms
    Mode pin
Function
    Row 2
mode, 10 pps, 40/60 ms
    During temporary MF : 82/160 ms
   (see key arrangement in Schematic Diagram) the scanning to the key.
   (see key arrangement in Schematic Diagram) the scanning to the key.
   This is a Schmitt trigger input for ring frequency discrimination. Disabled during off-hook.
   Output for driving an LED that will be flashing when in Programme.
   Differential inputs for the microphone (electric).
   This N-channel open drain output controls the external high power shunt transistor
   for the modulation of the line voltage and for shorting the line during make period
   of pulse dialing.
   This input is used for power extraction and line current sending.
   This is the input for the receive signal.
19
KX-TS2352CAB/KX-TS2352CAW
11.2. IC Block diagram
11.2.1. Ringer IC (IC2)
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