Panasonic KX-TG8621RUM / KX-TGA860RUM Service Manual ▷ View online
33
KX-TG8621RUM/KX-TGA860RUM
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.56)
(*2) Refer to Adjustment Standard (Handset) (P.56)
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
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.
34
KX-TG8621RUM/KX-TGA860RUM
9.1.5.
Check Handset Transmission
Cross Reference:
Signal Route (P.14)
9.1.6.
Check Handset Reception
Cross Reference:
How to Check the Handset Speaker or Receiver (P.60).
Signal Route (P.14)
Signal Route (P.14)
9.1.7.
Check Caller ID
Cross Reference:
Signal Route (P.14)
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.
35
KX-TG8621RUM/KX-TGA860RUM
9.1.8.
Bell Reception
9.1.8.1.
Base Unit
9.1.8.2.
Handset
Cross Reference:
Telephone Line Interface (P.10)
Check Link (P.27)
How to Check the Handset Speaker or Receiver (P.60)
Check Link (P.27)
How to Check the Handset Speaker or Receiver (P.60)
9.1.9.
Check TAM Operation
Cross Reference:
Power Supply Circuit (P.9)
Note:
(*1) When replacing FLASH MEMORY (IC421), TAM data need to be written to it. Refer to Base Unit of Things to Do after
Replacing IC or X'tal (P.57)
Replacing IC or X'tal (P.57)
Check around C54, C55, R36, R37.
When bell signal is coming, is there bell sound
signal at BBIC (IC7: 21, 23)?
signal at BBIC (IC7: 21, 23)?
NO
Check around IC7 (42), C147, C148, C145, C146,
C149, C150, SPp, SPn and SPEAKER.
C149, C150, SPp, SPn and SPEAKER.
NO
YES
When bell signal is coming, is there bell sound
signal at BBIC (IC7: 18)?
signal at BBIC (IC7: 18)?
YES
Check around C3, C4, C5, C6, R3, R4, R5, R6,
C136, C137, R32, R33, R34, R35, C52, C53,
P1, C168, C42, C43,R42,R43
C136, C137, R32, R33, R34, R35, C52, C53,
P1, C168, C42, C43,R42,R43
NO
When bell signal is coming, is there bell sound
signal at IC7 (41, 43)?
signal at IC7 (41, 43)?
Does the bell sound from SPEAKER?
Check around SP+, SP- .
When bell signal coming, is there bell sound signal
at BBIC (IC1: 34, 36)?
at BBIC (IC1: 34, 36)?
NO
NO
YES
When bell signal coming, is there bell sound signal
at SP+, SP- ?
at SP+, SP- ?
YES
Check BBIC (IC1), C78, C79, C64, C63, D13,
D14 , C66, C65, R67, R68.
D14 , C66, C65, R67, R68.
NO
Check cable of SPEAKER and resistance value
of SPEAKER.
of SPEAKER.
Check IC421 and BBIC (IC7) 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 2.85 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
36
KX-TG8621RUM/KX-TGA860RUM
9.1.10. Check BT Communication
Cross Reference:
Adjustment Standard (Handset) (P.56)
Insert the battery and wait 10 seconds.
Is it possible to enter the menu of "Bluetooth"?
Is it possible to register BT_Headset?
Check Voice Transmission of the BT_Headset
Check Voice Reception of the BT_Headset
Check ph.book transfer from cell
Check the circuit of around PCM
communication of main board and BT
module
communication of main board and BT
module
Refer to Troubleshooting Guide in the
Operationg Instructions.
Operationg Instructions.
Check the circuit of around RF parts of BT
Module
Module
YES
YES
OK
OK
NO
NG
NG
NG
NO
Take the battery off, and insert again
Check the Check_PIN (PIO01 of IC901) (*1)
... Continued to the next page.
Operate to enter the menu of "Bluetooth"
by using a handset
Press [MENU] Bluetooth [OK] On/Off On
by using a handset
Press [MENU] Bluetooth [OK] On/Off On
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