Panasonic KX-FC962RU-T / KX-FC962UA-T Service Manual ▷ View online
Z80 ASIC SYSTEM
After /RESET is released CPU starts reading the DATA (software program) from Flash memory. CPU reads the data when /RD
and /ROMCS are active (low). Waveform-1 shows such a situation.
and /ROMCS are active (low). Waveform-1 shows such a situation.
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7.7.6.2. CHECK THE STATUS OF THE DIGITAL BOARD
I/O and Pin No. Diagram
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After the power is turned on, the ASIC initializes and checks each IC.
The ROM, DRAM, and modem are checked.
If initialization fails for the ICs, the system will not boot up.
In this case, please find the cause as follows.
CROSS REFERENCE:
NG Example(P.97)
POWER SUPPLY BOARD SECTION(P.100)
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Other NG example while the power is ON and the LCD displays the following.
Note:
(*1) Refer to Display (P.4) for display message.
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