PIONEER BDP-LX70/WY5
Service Manual

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5. DIAGNOSIS
A

5.1 POWER ON SEQUENCE
Power On Sequence

Pressing of the POWER key is detected by the IC3601 Submicrocomputer on the MAIN Assy. The IC3601 then outputs a POWER_ON signal to the SYPS Assy.

After receiving the POWER_ON signal, the SYPS Assy activates, secondary Power, setting it to ON.
B

The SMP8634 (IC1001), the core LSI, starts up.

Communication between the SMP8634 and the DDR SDRAM starts.

C

Communication between the SMP8634 and the FLASH_IC starts.

It takes about 1 minute to complete the startup process.

D

Troubleshooting

Are the pins at CN6051 and CN6002 supplied with voltages?

E

Is the reset signal H? (R1088)

Is the 27-MHz CLK oscillating? (X1001)

F

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BDP-LX70
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