BDP-94HD
24
1
2
4
1
2
3
4
C
D
F
A
B
E
5. DIAGNOSIS
5.1 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.
Power On Sequence
After receiving the POWER_ON signal, the SYPS Assy activates, secondary
Power, setting it to ON.
Communication between the SMP8634 and the DDR SDRAM starts.
Troubleshooting
Are the pins at CN6051 and CN6002 supplied with voltages?
Is the reset signal H? (R1088)
Is the 27-MHz CLK oscillating? (X1001)
Communication between the SMP8634 and the FLASH_IC starts.
It takes about 1 minute to complete the startup process.
The SMP8634 (IC1001), the core LSI, starts up.
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299