Read Panasonic KX-FT938RU-B / KX-FT938CA-B / KX-FT938UA-B Service Manual online
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KX-FT938RU-B/KX-FT938CA-B/KX-FT938UA-B
12.5.5.1. Digital Block Diagram
Digital board is including analog system. All analog signals (Telephone, CID and TAM) excepting Fax communications. Another
one is ASIC system for mechanical functions: Copy, Fax and UI (LCD/Key). And serial interface (UART) connects both systems.
one is ASIC system for mechanical functions: Copy, Fax and UI (LCD/Key). And serial interface (UART) connects both systems.
Flash memory IC2 in the ASIC system is for software and also for user memory (settings, Phone book, CID memory) DRAM IC4
in the ASIC system is for work memory and also for fax memory. Flash memory IC6 in the ASIC system is for voice data of TAM
functions (message REC/PLAY, voice prompt).
in the ASIC system is for work memory and also for fax memory. Flash memory IC6 in the ASIC system is for voice data of TAM
functions (message REC/PLAY, voice prompt).
The signal lines that must be normal for the system to boot up are listed here [List 1].
For signal lines other than these, even if they malfunction they do not directly affect booting up the system.
For signal lines other than these, even if they malfunction they do not directly affect booting up the system.
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