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KX-F680BX/KX-F2681BX
(6) CHECK FLASH MEMORY
If the unit is working correctly but VOICE GUIDANCE (voice prompt) is not heard.
You should check the Flash Memory.
Check Voice prompt
(Service code : 784)
END
Check soldering.
Replace IC1 and IC4.
NG
OK
CAUTION:
The voice promptdata is entered after IC4 is installed on the P.C.Board. If the IC4 is replace, it is necessary to enter the
voice prompt again.
How to enter the voice prompt data
@ Exchange the ROM (IC2) with ROM for service (Ref No. EC23) on the P.C.board.
A Power ON
B LCD : "FORMAT" ¤ "ERASE" ¤ "WRITING" ¤ "WRITE OK" (about 15 second)
C Power OFF
D Replace the ROM (IC2) with the ROM for service on the P.C.Board.
E Use #784 and confirm the voice prompt.
Check soldering point
IC1: pin12, pin13, pin106,
pin107, pin108,
pin120
IC4, R63,R64
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