|
70
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KX-F680BX/KX-F2681BX
CHECK SHEET
MIC---L151-R154-C167---IC151(52,54-63)-C203-R210-IC201(2-1)-C202-R201-T101-TEL LINE
L152-R155-C168
SP-PHONE Tx
(SYMPTOM)
ITEMS TO CHECK
ROUTE
I N
O U T
signal
SP-PHONE Rx
MIC
-
R167-C164-IC151(51-71)------C216-CN271(7)-{CN1(7)-C7-R90-IC6 (23-6)-IC5 (82-28,29)
----C23-R19----IC10 (5,6-7)-CN1(10)}-CN271(10)-C184-R182-IC151(73-63)-C203-R210-
---C24-R20--
-IC201(2-1)-C202-R201-T101-TEL LINE
TEL LINE-T101-R202-C205-IC201(6-7)-C210-C173-R172-R173-C174-IC151(59-67)-R217-C214-
IC202(10-11)-C217-CN271(9)-{CN1(9)-R11-IC10(2-1)-C19-R13-IC5(38-83)-IC6(13-17,18)--- C10-R5---
C11-R6
IC11(5,6-7)-R8-CN1(8)}-CN271(8)-C185-R183-IC151(75-41)-C158-R161-IC151(40-38)-C245-
-R245-IC241(4-5,8)-SPEAKER
Handset Tx
Handset Rx
TEL LINE -T101-R202-C205-IC201(6-7)-C210-C173-R172-R173-C174-IC151(59-45,46)---C154-L154---
L153
-SPEAKER
DTMF
monitor
Speaker
{IC5(28,29)--- C23-R19---IC10(5,6-7)-CN1(10)}-CN271(10)-C184-R184-IC151(76-41)-C158-R161-
C24-R20
-IC151(40-38)-C245-R245-IC241(4-5,8)-SPEAKER
Handset
{IC5(28,29--- C23-R19---IC10(5,6-7)-CN1(10)}-CN271(10)-C184-R184-IC151(76-45,46)---C154- L154---
C24-R20
L153
-SPEAKER
{IC5(28,29)--- C23-R19---IC10(5,6-7)-CN1(10)}-CN271(10)-C184-R182-IC151(73-63)-C203-R210-
C24-R20
-IC201(2-1)-C202-R201-T101-TEL LINE
Beep for TEL LINE
{IC1(86)-CN1(11)}-CN271(11)-R185-C186-IC151(77-63)-C203-R210-IC201(2-1)-C202-R201-T101-
-TEL LINE
{IC1(85,87)--- R59-C56---CN2(1)}-CN272(1)-R186-C187-IC151(78-63)-C203-R210-IC201(2-1)-C202-R201-
R60-C57
-T101-TEL LINE
Dummy Ring
Back tone
Ringing
{IC1(85,87)--- R59-C56---CN2(1)}-CN272(1)-R186-C187-IC151(78-41)-C158-R161-IC151(40-38)-
R60-C57
C245-R245-IC241(4-5,8)-SPEAKER
Alarm/Beep/Key tone
{IC1(86)-CN1(11)}-CN271(11)-R185-C186-IC151(77-41)-C158-R161-IC151(40-38)-C245-R245-
IC241(4-5,8)-SPEAKER
CNG / DTMF/VOX
detection
FAX Rx
TEL LINE-T101-R202-C205-IC201(6-7)-C210-C212-R215-R219-C213-IC202(1-2)-C217-CN271(9)-{CN1(9)-
-R11-IC10(2-1)-C19-R13-IC5(38)}
DTMF for TEL LINE
FAX Tx
Note:
{ }: digital board
Summary of Contents for KX-F680BX
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Page 130: ... 165 KX F680BX KX F2681BX EC1 EC2 EC3 EC4 EC5 EC6 EC7 EC9 EC10 EC11 EC12 EC13 EC8 TOOLS ...
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