Panasonic KX-TGH210UAB / KX-TGH212UAB / KX-TGH220UAB / KX-TGHA20RUB Service Manual ▷ View online
33
KX-TGH210UAB/KX-TGH212UAB/KX-TGH220UAB/KX-TGHA20RUB
9.1.4.2.
RF Check Flowchart
Each item (1 ~ 3) of RF Check Flowchart corresponds to Check Table for RF part (P.34).
Please refer to the each item.
Please refer to the each item.
Note:
(*1) Base unit - refer to (E) of Check Point (Base Unit) (P.38)
Handset - refer to (H) of Check Point (Handset) (P.40)
Handset - refer to (H) of Check Point (Handset) (P.40)
Start
Link
confirmation
Normal
1
Control
signal
confirmation
X'tal
Frequency
confirmation
Range
confirmation
Normal
Check Range: Compare with a regular unit.
Check DSP interface parts.
(RF Block <->DSP on BU/HS P.C.B)
(RF Block <->DSP on BU/HS P.C.B)
Adjust X'tal Frequency. (*1)
GOOD
3
2
OK
OK
NG
NG
NG
NG
OK
OK
34
KX-TGH210UAB/KX-TGH212UAB/KX-TGH220UAB/KX-TGHA20RUB
9.1.4.3.
Check Table for RF part
Note:
(*1) Refer to Adjustment Standard (Base Unit) (P.51)
(*2) Refer to Adjustment Standard (Handset) (P.54)
(*2) Refer to Adjustment Standard (Handset) (P.54)
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: [Test mode]
1. Check X’tal Frequency. (*1)
(10.368 MHz ± 100 Hz)
1. Check X’tal Frequency. (*2)
(10.368 MHz ± 100Hz)
3
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.
35
KX-TGH210UAB/KX-TGH212UAB/KX-TGH220UAB/KX-TGHA20RUB
9.1.5.
Check Handset Transmission
Cross Reference:
Signal Route (P.17)
9.1.6.
Check Handset Reception
Cross Reference:
How to Check the Handset Speaker or Receiver (P.58).
Signal Route (P.17)
Signal Route (P.17)
9.1.7.
Check Caller ID
Cross Reference:
Signal Route (P.17)
OK
Check MIC of Handset.
Check CDL TX (HANDSET) in Signal Route.
Check Handset Speaker in How to check the Handset
Speaker or Receiver.
Speaker or Receiver.
OK
Check CDL RX (HANDSET) in Signal Route.
Check Caller ID in Signal Route.
36
KX-TGH210UAB/KX-TGH212UAB/KX-TGH220UAB/KX-TGHA20RUB
9.1.8.
Bell Reception
9.1.8.1.
Base Unit
*1 TGH220 only
9.1.8.2.
Handset
Cross Reference:
Telephone Line Interface (P.13)
Check Link (P.29)
How to Check the Handset Speaker or Receiver (P.58)
Check Link (P.29)
How to Check the Handset Speaker or Receiver (P.58)
9.1.9.
Check TAM Operation (for KX-TGH220 only)
Cross Reference:
Power Supply Circuit (P.12)
Note:
(*1) When replacing FLASH MEMORY (IC601), TAM data need to be written to it. Refer to Base Unit of Things to Do after
Replacing IC or X'tal (P.55)
Replacing IC or X'tal (P.55)
When bell signal is coming, is there bell sound
signal at BBIC (IC501:CIDINp, CIDINn)?
signal at BBIC (IC501:CIDINp, CIDINn)?
NO
Check around IC501 (VDD_PA), C506, C472, C473,
C477, C478, R477, R478
C477, C478, R477, R478
YES
Check around C103, C104, C105, C106, C107,
C109, C110, C111, C113, R101, R102, R103, R104,
R109, R110, R111, R112, P101
C109, C110, C111, C113, R101, R102, R103, R104,
R109, R110, R111, R112, P101
NO
When bell signal is coming, is there bell sound
signal at IC501 (SPP, SPN)?
signal at IC501 (SPP, SPN)?
*1
Does the bell sound from SPEAKER?
Check around SP+, SP- .
When bell signal coming, is there bell sound signal
at BBIC (IC1: 35, 37)?
at BBIC (IC1: 35, 37)?
NO
NO
YES
When bell signal coming, is there bell sound signal
at SP+, SP- ?
at SP+, SP- ?
YES
Check BBIC (IC1), C78, C79, R77, R76.
NO
Check cable of SPEAKER and resistance value
of SPEAKER.
of SPEAKER.
Check IC601 and BBIC (IC501) of Base Unit. (*1)
Is there a TAM icon on the Handset display?
Turn on the Answering System.
Check Power Supply Circuit.
NO
NO
YES
Is the voltage of VDD3 of Base Unit about 3.0 V
and VDD1 about 1.8 V, VDD4 about 3.0 V,
VDD5 about 3.0 V?
and VDD1 about 1.8 V, VDD4 about 3.0 V,
VDD5 about 3.0 V?
YES
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