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Model
KX-TG1611CAH KX-TG1611CAR KX-TG1611CAW KX-TG1612CA3 KX-TG1612CAH KX-TGA161RUH KX-TGA161RUR KX-TGA161RUW (serv.man2)
Pages
28
Size
1.68 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
Telephone / DIGITAL CORDLESS PHONE
File
kx-tg1611cah-kx-tg1611car-kx-tg1611caw-kx-tg1612ca.pdf
Date

Panasonic KX-TG1611CAH / KX-TG1611CAR / KX-TG1611CAW / KX-TG1612CA3 / KX-TG1612CAH / KX-TGA161RUH / KX-TGA161RUR / KX-TGA161RUW (serv.man2) Service Manual / Supplement ▷ View online

8
3.2.
Troubleshooting Guide
3.2.1.
Check Power
[Changed from original section "9.1.1. Check Power"]
3.2.1.1.
Base Unit
Is the AC Adaptor inserted into AC outlet? (Check AC Adaptor’s specification.)
Cross Reference
Power Supply Circuit (P.5)
Is input of IC2 (pin3) about 5.5V?
Check F1 is not opened, C34, C58, C40 is 
not shorted.
Check AC Adaptor.
Check Power Supply Circuit.
Is the output voltage of IC2 (pin2) about 2.65V?
Check X1, C23.
Check IC3. 
Is C48(RESETQ) High?
Check IC3.
YES
YES
YES
YES
YES
YES
NO
NO
NO
9
3.2.2.
Check Link
[Changed from original section "9.1.3. Check Link"]
3.2.2.1.
Base Unit
Cross Reference:
Power Supply Circuit (P.5)
Check Point (Base Unit) (P.12)
Note:
(*1) Refer to Troubleshooting by Symptom (Base Unit and Charger Unit) (P.12).
Check around Power Supply Circuit.
Does Base Unit make link with Handset? 
(Correct working unit)
Check around X1 and adjust clock frequency.
Refer to Check Point...(E).
NO
NO
NO
(*1)
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Check the RF circuit in the shield case.
Is the modulation OK?
Refer to Check Point...(I).
Is VDDB pin about 2.65V?
Is there CMD60 (: Dect Tester)?
Is the RF clock (P1.0) oscillate: 10.368MHz in
Base Unit Test Mode?
Refer to Check Point...(E).
Is the NTP value OK?
Refer to Check Point...(H).
Is the RSSI Level OK?
Refer to Check Point...(M).
Does Base Unit make link with CMD60 in 
Base Unit Test Mode?
Refer to Check Point...(H).
NO
YES
Base Unit is OK. Check Handset.
NO
YES
Is the Sensitivity Receiver OK?
Refer to Check Point...(K).
YES
Is the Timing OK?
Refer to Check Point...(L).
YES
Is the Frequency Offset OK?
Refer to Check Point...(J).
10
3.2.2.2.
Handset
Cross Reference
Power Supply Circuit/Reset Circuit
Check Point (Handset)
 (P.15)
Note:
(*1) Refer to Troubleshooting by Symptom (Handset) (P.15).
Check around Power Supply Circuit/Reset Circuit.
Does Handset make link with Base Unit?
(Correct working unit)
Check around X101 and  adjust clock frequency. 
Refer to Check Point...(H).
NO
NO
NO
(*1)
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Check the RF circuit in the shield case.
VDDBAT about 2.6 V?
Is the RF clock (P1.0) oscillate: 10.368MHz
in Base Unit Test Mode?
Refer to Check Point...(H).
Is the NTP value OK?
Refer to Check Point...(I).
Is the RSSI Level OK?
Refer to Check Point...(N).
Does Base Unit make link with CMD60 in
Base Unit Test Mode?
Refer to Check Point...(I).
NO
Handset is OK. Check Base Unit.
YES
Is there CMD60 (: Dect Tester)?
NO
YES
Is the modulation OK?
Refer to Check Point...(J).
YES
Is the Frequency Offset OK?
Refer to Check Point...(K).
YES
Is the Sensitivity Receiver OK?
Refer to Check Point...(L).
YES
Is the Timing OK?
Refer to Check Point...(M).
11
3.2.3.
Bell Reception
[Changed from original section "9.1.7. Bell Reception"]
3.2.3.1.
Handset
Cross Reference:
Telephone Line Interface
Check Link
 (P.9)
How to Check the Handset Speaker or Receiver
Does bell sound from BUZZER?
Replace with the new BUZZER.
Check around R114, D104, Q104, Q105.
When bell signal coming, is there bell sound signal 
at RA102 (P1.1) and RA102 (TXD)?
NO
NO
YES
When bell signal coming, is there bell sound signal
at D104 (between A and K)?
YES
Check link in Check Link, and around Career module.
NO
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