Back Board Circuit Operation - Panasonic KX-TDA600BX Service Manual

KX-TDA600BX

9 BACK BOARD CIRCUIT OPERATION

The back board (BB) connects signals between all cards in KX-TDA600. It also supplies power from the power supply unit to
the cards.
CONNECTORS EXPLANATION
(1) Power Supply Unit Connector: CN100
(2) Free Slot Connectors: CN101-CN110
(3) EMPR Card Slot Connector: CN111
(4) BUS-M Card Connector: CN112
(5) RS-232C Connector: CN113
CN113 is connected to the connector in front of the product.
(6) LED Connector: CN114
CN114 is connected to the Board on the product.
(7) FAN Connector: CN115
(8) BUS Connector: CN301, CN302
(9) Voltage drop Resistor for Fan Control
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