![background image](http://html1.mh-extra.com/html/panasonic/kx-dt543-b/kx-dt543-b_service-manual_3785546021.webp)
21
KX-DT543/KX-DT543-B/KX-DT546/KX-DT546-B
NO
YES
Check the TEST POINT(ST0-ST3).
See Table-1.
Is it "NOT Error (No.1)" ?
YES
NO
YES
Confirm the LCD display.
Is it working?
END
Boot ROM Error into IC410 (No.2)
NO
Is it possible to call other telephone from DPT?
[ DCX81(IC410) ]
[ Flash ROM(IC401) ]
[ ASIC2(
IC150
) ]
[ ASIC1(IC300) ]
A
[ LCD ]
See Table-2 (
P.23
).
Flash ROM(IC401) Data Error
/ DSP Data Error (No.3,4,6,7)
See Table-3 (
P.24
).
ASIC2(IC150) Data Error (No.5)
See Table-4 (
P.25)
.
See "
8.2
ASIC1(IC300) Does Not Operate".
See "
8.3
LCD Does Not Operate".