No.(18)-(21) - Panasonic KX-DT543-B Service Manual

11.4.6. No.(18)-(21)

(18) EHSTX signal
(20) JABRA_UTX signal
(21) JABRA_URX signal
(19) EHSRX signal
Between 3pin and 4pin
of JK302
Between 1pin and 4pin
of JK302
10pin(JABRA_URX)
of CN160
55
KX-DT543/KX-DT543-B/KX-DT546/KX-DT546-B
8pin(EHS_RX)
of IC150
10pin of IC410
on Main PCB