No.23
SystemPort (IC302/CPU-382)
Check the power supply
No
Is RB301/CPU-382
+3.3 V (±10%)?
Yes
Check the clock
No
Is pin 3 of X301/CPU-382
60 MHz?
Yes
No
Are other SH bus devices
/CPU-382 OK?
Yes
Check the IC302/CPU-382,
or the peripheral circuit.
4-20
Check the IC301/PS-686,
or the peripheral circuit.
Check the
IC302, X301/CPU-382,
or the peripheral circuit.
Check the followings
. Bus buffers
(IC2209-IC2216/CPU-382),
or the peripheral circuit
. IC302, IC402/CPU-382,
or the peripheral circuit
PCS-G50/G50P