25
BDP-05FD
5
6
7
8
5
6
7
8
A
B
C
D
E
F
5. DIAGNOSIS
5.1 POWER ON SEQUENCE
Pressing of the POWER key is detected by the IC4001 Submicrocomputer on the MAI
N
Assy.
The IC4001 then outputs a POWER_O
N
signal to the SYPS Assy.
Power On Se
q
uence
After receiving the POWER_O
N
signal, the SYPS Assy activates, secondary
Power[SW+12
V
], setting it to O
N
.
Communication between the R
8
A34019BG and the DDR2 SDRAM starts.
Troubleshootin
g
Are the pins at C
N
7001 and C
N
7002 supplied with voltages?
MAI
N
ASSY(1/
8
)
V
+3S,
V
+3PLL with 3.3 voltages?
MAI
N
ASSY(1/
8
)
V
+1R
8
S with 1.
8
voltages?
MAI
N
ASSY(1/
8
)
V
+1R1S with 1.1 voltages?
Is the reset signal H? (R1161)
Is the 27 MHz CLK oscillating? (R1141)
Power O
N
, and log of R
8
A34019BG stops with [DRAM failed].
R
8
A34019BG and communication failure of DDR memory.
Power O
N
, and log of R
8
A34019BG stops with [zboot failed].
R
8
A34019BG and communication failure of FLASH memory.
Communication between the R
8
A34019BG and the FLASH_IC starts.
It takes about 1 minute to complete the startup process.
The R
8
A34019BG (IC1001), the core LSI, starts up. {RS-232C connectorC
N
1601,
log it to O
N
}
Содержание BDP-05FD - Elite Blu-Ray Disc Player
Страница 19: ...19 BDP 05FD 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 103: ...103 BDP 05FD 5 6 7 8 5 6 7 8 A B C D E F G A 8 10 CN7002 A 8 10 CN7001 TO DRIVE ...
Страница 106: ...106 BDP 05FD 1 2 3 4 A B C D E F 1 2 3 4 ...
Страница 117: ...117 BDP 05FD 5 6 7 8 5 6 7 8 A B C D E F LF SIDE B D SIDE B VNP2107 A CN1 ...
Страница 119: ...119 BDP 05FD 5 6 7 8 5 6 7 8 A B C D E F SIDE B G G SIDE B G SYPS ASSY ...