Panasonic BL-WV10A, Service Manual

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Description of an error Error code Number of
buzzer
sounds
Areas likely to malfunction
SDRAM error — 3 IC1, IC2 or the peripheral
DM270 error — 4 IC203 or the peripheral
H8 microprocessor
error F30 — IC602 or the peripheral
EtherLAN error F40 5 IC700 or the peripheral
SD error F50 5 IC606 or the peripheral
System partition error F91 6 MAC address rewrite
Kernel boot error F99 6 IC408, IC4 or the peripheral
9. CIRCUIT DESCRIPTION
9.1. CPU BLOCK
The main CPU (IC408) has functions such as network control, memory control and PCI control. The
programs are stored in the writable Flash ROM (IC4), and SDRAM (IC1, IC2) are used for data processing.
The sub CPU (IC602), which connects to the main CPU (IC408) by serial line, has functions of timer
control, and performs such as receiving control, LED control, buzzer control and WDT control.
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