Panasonic KX-TGF310RUM / KX-TGF320RUM / KX-TGF320UCM / KX-TGFA30RUM Service Manual ▷ View online
37
KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
9.1.5.2.
Handset
Cross Reference:
Power Supply Circuit/Reset Circuit (P.18)
Check the RF part (P.38)
Check the RF part (P.38)
Note:
(*1)For Test Point refer Circuit Board
(Handset_Main)(P.103)
(Handset_Main)(P.103)
Note:
*1 Refer to Things to Do after Replacing IC or X'tal (P.66) for Handset.
Check around Power Supply Circuit/Reset Circuit.
Does Handset link with Base Unit?
(Properly working unit)
(Properly working unit)
Check around X1 and RF module and adjust
clock frequency.
clock frequency.
NO
NO
NO
NO
Is the voltage of TP VBAT about 2.2~2.8 V? (*1)
Is the voltage of TP VDDC about 1.2 V?
YES
YES
YES
YES
Is the voltage of TP 3.0 V about 3.0 V?
Does the RF clock (CLK) oscillate: 13.824 MHz
in Handset Test Mode?
in Handset Test Mode?
Handset is OK. Check Base Unit.
YES
Check the RF part
Check the batteries.
*1
38
KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
9.1.6.
Check the RF part
9.1.6.1.
Finding out the Defective part
After All the Checkings or Repairing
1. Re-register the checked handset to the checked base unit, and Regular HS to Regular BU.
Note:
(*1) HS: Handset
(*2) BU: Base Unit
(*2) BU: Base Unit
1. Prepare Regular HS(*1) and Regular BU(*2).
2. a. Re-register regular HS (Normal mode) to base unit (to be checked).
2. a. Re-register regular HS (Normal mode) to base unit (to be checked).
If this operation fails in some ways, the base unit is defective.
b. Re-register handset (to be checked) to regular BU (Normal mode).
If this operation fails in some ways, the handset is defective.
b. Re-register handset (to be checked) to regular BU (Normal mode).
If this operation fails in some ways, the handset is defective.
Base unit is defective
Handset is defective
START
Registration of
Regular HS to
base unit
Registration of
handset to
Regular BU
(other checkings)
Registration of handset to base unit
(checked ones)
Registration of Regular HS to Regular BU
Yes
No
No
Yes
39
KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
9.1.6.2.
RF Check Flowchart
Each item (1 ~ 5) of RF Check Flowchart corresponds to Check Table for RF part (P.40).
Please refer to the each item.
Please refer to the each item.
Note:
(*1) Refer to Check Link (P.36).
Start
Link
confirmation
Normal
1
Control
signal
confirmation
X'tal
Frequency
confirmation
TX confirmation
Range
confirmation
Normal
TEST RANGE Check.
Check BBIC interface parts.
(RF Block <->BBIC on BU/HS P.C.B)
(RF Block <->BBIC on BU/HS P.C.B)
Adjust X'tal Frequency. (*1)
Check TX Block.
GOOD
5
2
3
4
OK
OK
OK
NG
NG
NG
NG
NG
OK
OK
40
KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
9.1.6.3.
Check Table for RF part
Note:
(*1) Refer to Commands (P.63)
(*2) Adjustment Standard (Base Unit) (P.64)
(*3) Adjustment Standard (Handset) (P.65)
(*2) Adjustment Standard (Base Unit) (P.64)
(*3) Adjustment Standard (Handset) (P.65)
No.
Item
BU (Base Unit) Check
HS (Handset) Check
1
Link Confirmation Normal
HS, BU Mode [Normal Mode]
1. Register Regular HS to BU (to be
checked).
2. Press [Talk] key of the Regular HS to
establish link.
1. Register HS (to be checked) to Regular
BU.
2. Press [Talk] key of the HS to establish link.
2
X
'
tal Frequency confirmation
HS, BU Mode: [Adjustment]
Check X
'
tal Frequency.
(10.368 MHz ±41Hz)
Check X
'
tal Frequency.
(13.824 MHz ±100 Hz)
3
TX confirmation
HS Mode:
HS_Burst Mode] (*1)
HS_Burst Mode] (*1)
BS Mode:
BS_Burst Mode] (*1)
BS_Burst Mode] (*1)
1. Remove wire antenna 2 and connect
spectrum analyzer to TP. (*2)
2. Confirm TX power whether spec. is
satisfied.
Power >=13.5dBm
Power >=13.5dBm
1. Connect spectrum analyzer to TP. (*3)
2. Confirm TX power whether satisfied spec.
2. Confirm TX power whether satisfied spec.
Power >=16.0dBm
4
Range Confirmation Normal
HS, BU Mode: [Normal Mode]
1. Register Regular HS to BU (to be
checked).
2. Press [Talk] key of the Regular HS to
establish link.
3. Compare the range of the BU (being
checked) with that of the Regular BU.
1. Register HS (to be checked) to Regular
BU.
2. Press [Talk] key of the HS to establish link.
3. Compare the range of the HS (being
3. Compare the range of the HS (being
checked) with that of the Regular HS.
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