Appendix A - Nokia 9000i Service Manual

RAE/RAK–1N
Faultfinding/Disassembly

Appendix A

POST beep codes, number of beeps:
1 Memory refresh is not working.
3 Memory failure in 1st 64KB of memory.
4 Timer T1 not operational.
5 CPU test failed.
6 Gate A20 failure.
10 CMOS shutdown register failed.
13 Exhaustive low memory test failed.
14 Exhaustive extended memory test failed.
15 CMOS restart byte can't hold data.
16 Address line test failed.
18 Interrupt controller failure.
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