Panasonic KX-TDA1180X (serv.man3) Service Manual ▷ View online
17
KX-TDA1180X
4.4.
Power Supply Circuit
The circuit which generates output +3.3V, +5V with input +15V. It is configured with the circuit that reduces the voltage from
+15V to +3.3V by IC801, Q801 and L801 switching power supply, and with the circuit that reduces the voltage from +15V to +5V
by IC802, Q802 and L802 switching power supply.
There are two protection lines. One is IP1 for +15V short protection, the other is the over voltage protection which detects
+3.3V/+5V voltage rise and make FET operate ON to IP1 shut-off for Q15.
+15V to +3.3V by IC801, Q801 and L801 switching power supply, and with the circuit that reduces the voltage from +15V to +5V
by IC802, Q802 and L802 switching power supply.
There are two protection lines. One is IP1 for +15V short protection, the other is the over voltage protection which detects
+3.3V/+5V voltage rise and make FET operate ON to IP1 shut-off for Q15.
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KX-TDA1180X
4.4.1.
Power Supply System
Three power input systems from the main power voltage; +15V, +30V and +40V.
The power voltage which is used in the main circuit is +15V, +5V and +3.3V, so it generates and use the power voltages in the
circuit below.
The power voltage which is used in the main circuit is +15V, +5V and +3.3V, so it generates and use the power voltages in the
circuit below.
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KX-TDA1180X
5 Location of Controls and Components
5.1.
Name and Locations
Overview
Inside View
20
KX-TDA1180X
5.2.
Instlling/Removing the Optional Service Cards
Slot Condition
Caution:
To protect the back board from static electricity, do not touch parts on the back board in the main unit and on the optional ser-
vice cards. To discharge static, touch ground or wear an earthing strap.
vice cards. To discharge static, touch ground or wear an earthing strap.
Function:
8-port analogue trunk card with Caller ID, and 2 power failure transfer (PFT) ports. Caller ID signal type FSK/FSK (with Call
Waiting Caller ID [Visual Caller ID])/DTMF compatible. One CLCOT8E card can be mounted on the CLCOT8 card (refer to
CLCOT8E Card).
Waiting Caller ID [Visual Caller ID])/DTMF compatible. One CLCOT8E card can be mounted on the CLCOT8 card (refer to
CLCOT8E Card).
Accessory and User-supplied Items
Accessory (included): Screws x 2
User-supplied (not included): Amphenol connector
Accessory (included): Screws x 2
User-supplied (not included): Amphenol connector
Notes:
• To connect the amphenol connector, refer to " Fastening Amphenol Type Connector ".
• For details about power failure transfer, refer to " Power Failure Connections ".
• To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "Starting the PBX ”.
• For details about power failure transfer, refer to " Power Failure Connections ".
• To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "Starting the PBX ”.
Card Type
Slot Type
KX-TDA110:Free Slot 1 to 6
Option Slot
MPR Slot
MPR Card
No
No
Yes
CO Line Cards
Yes
No
No
Extension Cards
Yes
No
No
OPB3 Card
Yes
Yes
No
CTI-LINK Card
Yes
Yes
No
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