Philips 32PF9968/10 Service Manual page 24
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Also See for 32PF9968/10:
- Service manual (185 pages) ,
- User manual (55 pages) ,
- Manual (54 pages)
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EN 24
5.
Q522.1E LA
No
No
Switch AVC PNX85xx
in reset (active low)
Switch the NVM reset
Disable all supply related protections and
switch off the +2V5, +3V3 DC/DC converter.
switch off the remaining DC/DC
Switch POD-MODE and ON-MODE
3-th try?
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Service Modes, Error Codes, and Fault Finding
Switch LOW the RESET-NVM_WP-NANDFLASH line. Add a 2ms delay before
trying to address the NVM to allow correct NVM initialization.
No
Release AVC system reset
Feed warm boot script
Boot process of the PNX5050 also starts at this point.
No
No
Code = 5
Code = 53
No
Wait 10ms
line HIGH.
Wait 5ms
converters
I/O line high.
Figure 5-5 "Off" to "Semi Stand-by" flowchart (part 2)
SUPPLY-FAULT I/O line
No
is High?
Yes
Enable the supply fault detection
algorithm
Set I²C slave address
of Standby µP to (A0h)
Detect EJTAG debug probe
(pulling pin of the probe interface to
ground by inserting EJTAG probe)
EJTAG probe
connected ?
No
Cold boot?
Yes
Release AVC system reset
Feed cold boot script
Bootscript ready
in 1250 ms?
Yes
Set I²C slave address
of Standby µP to (60h)
RPC start (comm. protocol)
Flash to Ram image
transfer succeeded
within 30s?
Yes
SW initialization
succeeded
within 20s?
Yes
Enable Alive check mechanism
MIPS reads the wake up reason
from standby µP.
In case of an LCD set, check the
Power-OK display line
Power-ok display high ?
Yes
Reset the Pacific by pulling LOW the Pacific
hardware reset line during 100ms.
The supply fault line is an OR
Supply fault error
function of DCDC, DCDC5050
and POD/CI supply switch.
SP
This will allow access to NVM and
NAND FLASH and can not be done
earlier because the FLASH needs to
be in Write Protect as long as the
supplies are not available.
An EJTAG probe (e.g. WindPower ICE probe) can
be connected for Linux Kernel debugging purposes.
Yes
Release AVC system reset
Feed initializing boot script
disable alive mechanism
Wait until AVC starts to
communicate
Log power-ok error and enter
No
protection
MP
No
H_17650_094b.eps
180108
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