Panasonic KX-TGK310RUB / KX-TGK320RUB / KX-TGKA31RUB Service Manual ▷ View online
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KX-TGK310SP/KX-TGK310JT/KX-TGK320JT/KX-TGK310FR/KX-TGK310RU/KX-TGK320RU/KX-TGK310NE//KX-TGK310GR/KX-TGKA31EX/KX-TGKA31RU
9 Troubleshooting Guide
9.1.
Troubleshooting Flowchart
Cross Reference:
Check Power (P.30)
Check Record (P.31)
Check Battery Charge (P.31)
Check Link (P.32)
Check the RF part (P.34)
Check Handset Transmission (P.39)
Check Handset Reception (P.39)
Check Caller ID (P.39)
Check Bell Reception (P.40)
Check TAM Operation (for KX-TGK320 only) (P.40)
Check Record (P.31)
Check Battery Charge (P.31)
Check Link (P.32)
Check the RF part (P.34)
Check Handset Transmission (P.39)
Check Handset Reception (P.39)
Check Caller ID (P.39)
Check Bell Reception (P.40)
Check TAM Operation (for KX-TGK320 only) (P.40)
Power ON Base Unit
FLOW CHART
Check Power
OK
Record
OK
Check Record
Range
Check the RF part
Handset Voice Transmission
Check Handset Transmission
Handset Voice Reception
OK
OK
OK
Check Handset Reception
Caller ID Reception
Check Caller ID
Caller ID Error
No voice
No voice
No charge
Not record
Not working
NG
No link
OK
Link
Battery Charge
OK
Check Battery Charge
Check Link
Bell Reception
OK
Not reception
Check Bell Reception
TAM Operation
*1
OK
Not working
Check TAM Operation
*1
*1 KX-TGK320 only
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KX-TGK310SP/KX-TGK310JT/KX-TGK320JT/KX-TGK310FR/KX-TGK310RU/KX-TGK320RU/KX-TGK310NE//KX-TGK310GR/KX-TGKA31EX/KX-TGKA31RU
9.1.1.
Check Power
9.1.1.1.
Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit (P.11)
Note:
BBIC is IC501.
(*1) Refer to Specifications (P.7) for part number and supply
voltage of AC adaptor.
(*2) Refer to Base Unit (Main) (P.79).
(*1) Refer to Specifications (P.7) for part number and supply
voltage of AC adaptor.
(*2) Refer to Base Unit (Main) (P.79).
9.1.1.2.
Handset
Cross Reference:
Power Supply Circuit/Reset Circuit (P.11)
Note:
(*1) Refer to Handset (Main) (P.81).
Is the AC Adaptor inserted into AC outlet? (*1)
Is output voltage of AC adaptor 5.5 V?
YES
Check
AC Adaptor.
Check VDDC (1.2 V): Test Point [VDDC]
(*2)
OK
Check Power Supply Circuit.
NO
NO
NO
NO
RSTN: Reset = "High"?
(*2)
YES
Check Reset Circuit.
Check Xtal CLK = 13.824 MHz?
YES
Check X501.
Check BBIC.
Check Power Supply Circuit/Reset Circuit .
Check BBIC (IC1).
Check F1 is not open.
Check X1.
Is the voltage of BATT+ 2.3 V more?
(*1)
Check the battery and around BATT+ and
BATT- are not shorted.
BATT- are not shorted.
Is the battery inserted BATT+ and BATT-?
Does BBIC (IC1: 7) oscillate at 10.368 MHz?
YES
YES
YES
YES
NO
NO
YES
Is the voltage of +1.8V about 1.8 V?
(*1)
Is the voltage of CP3V about 3.0 V?
(*1)
Check BBIC (IC1).
YES
Is the voltage of CP4V about 4.0V ?
(*1)
(When LED is On)
YES
NO
NO
NO
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KX-TGK310SP/KX-TGK310JT/KX-TGK320JT/KX-TGK310FR/KX-TGK310RU/KX-TGK320RU/KX-TGK310NE//KX-TGK310GR/KX-TGKA31EX/KX-TGKA31RU
9.1.2.
Check Record
9.1.2.1.
Base Unit
A) Not record Incoming Message
Cross Reference:
Signal Route (P.17)
Telephone Line Interface (P.13)
Telephone Line Interface (P.13)
Note:
Flash Memory is IC601 (for KX-TGK320 only).
BBIC is IC501.
BBIC is IC501.
9.1.3.
Check Battery Charge
9.1.3.1.
Base Unit
Cross Reference:
Charge Circuit (P.12)
9.1.3.2.
Handset
Cross Reference:
Check Power (P.30)
Charge Circuit (P.16)
Charge Circuit (P.16)
Check Bell signal.
OK
Check Telephone Line Interface
[Bell].
[Bell].
Does the unit catch line?
YES
Check Telephone Line Interface
[OFF HOOK].
[OFF HOOK].
Check Line In: Pin 16 of BBIC.
Check ICM Recording in Signal Route.
NO
OK
Check Auto Disconnect Circuit.
OK
Check Parallel Connection Detection
Circuit.
Circuit.
OK
Check BBIC and Flash Memory.
NO
NO
Check Charge Circuit of Base Unit.
Check Handset.
Plug in the AC Power source.
Charge Handset on Base Unit.
Charge Handset on Base Unit.
Is the voltage of two charge contacts about
5.5V or more?
5.5V or more?
OK
NO
Check Charge Contacts at
Base Unit from mechanical point of view in order
to check if a bad contact between
Base unit and Handset.
Base Unit from mechanical point of view in order
to check if a bad contact between
Base unit and Handset.
YES
Is BBIC (IC1: 34) high at charge state?
Check Charge Circuit.
Check Power of Handset.
Is Check Power OK?
NO
NO
YES
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KX-TGK310SP/KX-TGK310JT/KX-TGK320JT/KX-TGK310FR/KX-TGK310RU/KX-TGK320RU/KX-TGK310NE//KX-TGK310GR/KX-TGKA31EX/KX-TGKA31RU
9.1.4.
Check Link
9.1.4.1.
Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit (P.11)
Check the RF part (P.34)
Check the RF part (P.34)
Note:
(*1) Refer to Base Unit (Main) (P.79).
(*2) Refer to Check Point (Base Unit) (B) (P.41).
(*3) Refer to Check Point (Base Unit) (E) (P.41).
(*2) Refer to Check Point (Base Unit) (B) (P.41).
(*3) Refer to Check Point (Base Unit) (E) (P.41).
Check around Power Supply Circuit.
Adjust +3.0V voltage to 3.0 V.
(*2)
Does Base Unit make link with normal working
Handset?
Handset?
Check around X501 and RF module and adjust
clock frequency.
clock frequency.
(*3)
NO
NO
NO
NO
YES
YES
Is the voltage of VBAT about 3.0 V?
(*1)
Check the RF part
Does the RF clock (CKM) oscillate at 13.824 MHz in
Base Unit Test Mode?
Base Unit Test Mode?
YES
Is the voltage of VDDC about 1.2 V?
(*1)
Is the voltage of +3.0V about 3.0 V?
(*1)
YES
YES
Base Unit is OK. Check Handset.
NO
OK
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