Read Panasonic KX-TG6561CAT / KX-TGA651RUT (serv.man3) Service Manual Supplement online
2
KX-TG6561CAT/KX-TGA651RUT
1 DELETION
1.1.
Check TAM Operation
[Changed from original section “9.1.13.Check TAM Operation”]
41
KX-TG6561CAT/KX-TGA651RUT
9.1.12. Bell Reception
9.1.12.1. Base Unit
9.1.12.2. Handset
Cross Reference:
Telephone Line Interface (P.12)
Check Link (P.32)
How to Check the Handset Speaker or Receiver (P.64)
Check Link (P.32)
How to Check the Handset Speaker or Receiver (P.64)
9.1.13. Check TAM Operation
Cross Reference:
Power Supply Circuit/Reset Circuit (P.10)
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.61)
Replacing IC or X'tal (P.61)
When bell signal is coming, is there bell sound
signal at BBIC (IC501: 59)?
signal at BBIC (IC501: 59)?
NO
YES
NO
When bell signal is coming, is there bell sound
signal at IC501 (29, 31)?
signal at IC501 (29, 31)?
Check around L474, L475.
Check around R111, R112, R113, R114, Q111,
D113, C111, C112,
D113, C111, C112,
Does the bell sound from SPEAKER?
Check around SP+, SP- .
When bell signal coming, is there bell sound signal
at BBIC (IC1: 31, 29)?
at BBIC (IC1: 31, 29)?
NO
NO
YES
When bell signal coming, is there bell sound signal
at SP+, SP- ?
at SP+, SP- ?
YES
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
P
ower S upply Circuit
.
NO
NO
YES
D
eletion
D
eletion
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