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No.33
SDRAM (IC202, IC204, IC206, IC208/CPU-382)
Check the power supply
Is FB202/CPU-382
+3.3 V (±10%)?
Yes
Check the clock
Is pin 5 of IC103/CPU-382
20 MHz?
Yes
Check the clock
Is CL203, CL206/CPU-382
20 MHz?
Yes
Check the
IC202, IC204, IC206,
IC208/CPU-382,
or the peripheral circuit.
4-24 (E)
No
Check the IC301/PS-686,
or the peripheral circuit.
No
Check the IC103, IC111,
X101/CPU-382,
or the peripheral circuit.
Check the
No
IC101, IC503/CPU-382,
or the peripheral circuit.
No.34
SRAM (IC209/CPU-382)
Check the power supply
No
Is FB206/CPU-382
+3.3 V (±10%)?
Yes
No
Are other SH bus devices
/CPU-382 OK?
Yes
Check the IC209/CPU-382,
or the peripheral circuit.
Check the IC301/PS-686,
or the peripheral circuit.
Check the followings
. IC101/CPU-382,
or the peripheral circuit
. Bus buffers
(IC2209-IC2216/CPU-382),
or the peripheral circuit
PCS-G70N/G70NP/G70NP2
PCS-G70S/G70SP
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