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EN 18
5.
FTP2.4A AA
Every step of the stepwise start-up (also called trapped start-
up) in the diagram corresponds with the number of times the
LED blinks.
Mains cord IN
Start time extraction
Start P50 recording
Start EPG loading
Standby bit = OFF
Ambient light ON
Stand by
Trapped Startup 1
Put Standby line LOW
CPU GO becomes HIGH
Set STBYEN,VCCON,PFCON= 1
Only FHP (opt 27)
Keep sound amplifiers muted
with sound enable = HIGH
+5V and +8V is switched ON
+8V and +5V get their nominal
level, detected by the OTC
Activate protection algorithms for +8V and
+5V and I²C (start I²C protection the
moment the component is initialised).
Trapped Startup 2
Read rest of NVM
information
Initialize HIP : IF, source selection, 2fh input, video processing
Switch ON the sync output: set_syncout_tristate= OFF
Initialize tuner
Initialize 3D Combfilter
or Initialize Columbus
Initialize PICNIC + screen info
Initialize rest of PIP/DW
module
Start TXT acquisition
and time extraction
Reset Audio = LOW
and Initialize MSP
Initialize EBILD
Screen type
Start up LCD
Initialize PDP FHP
(see next drawing)
(see next drawing)
Figure 5-3 Stepwise start-up (part 1)
Initialize PDP (SDI v3)
PDP ON
yes
Ebild: POWER OFF
Trapped Startup 3
Semi stand by
Figure 5-4 Stepwise start-up (part 2): Initialise SDI v3 (*)
Service Modes, Error Codes, and Fault Finding
OUT
OTC gets supply voltage
OTC resets, Initialise IO pins
Reset Audio= HIGH
Read NVM identification
enable watchdog
Tact switch
OFF
Stand by bit = OFF
Time out:
Goto protection
30X200msec
400msec>t>200msec
Initialize PDP SDI
(see next drawing)
E_14620_048.eps
START
Max 3.04 sec after 5V and 8V =OK
Set Fixed settings
Ebild: POWER ON
Stable LVDS
Wait 200 msec
no
Power OK (POR OTC)?
no
Time out 5 sec?
yes
Stby bit set?
Goto protection
no
Ebild/ Output blanking: OFF
Trapped Startup 4
PDP ON
F_15470_008.eps
Initialize PDP (SDI v4)
Ebild: Put Reset flag low
Semi stand by
Figure 5-5 Stepwise start-up (part 2): Initialise SDI v4 (*)
Initialize PDP (FHP ALiS)
160805
Semi stand by
071005
Figure 5-6 Stepwise start-up FHP ALiS (*)
Notes (*):
•
When the TV is in stepwise mode and, due to stepping-up,
a protection is activated, the TV will really go into protection
(blinking LED). The TV will not leave the stepwise mode
however. If state X is the state where the TV went to
protection, stepwise start-up will return to state X-1. At
state (X-1) diagnostic measurements can be performed.
START
Set Fixed settings
PDP ON
Stby bit set?
no
yes
Ebild: POWER ON
Wait 200 msec
Power OK (POR OTC)?
yes
Ebild: Output blanking: OFF
PDP ON
START
Set Fixed settings
Set default settings
yes
Stand by bit set?
no
PDP ON
PDP: PDP ON =1
Wait 200 msec
Power OK (POR OTC)?
yes
Wait 200 msec
Read CNDC
CNDC = 4 ?
yes
Ebild/ Power ON
Trapped Startup 3
Output blanking: OFF
PDP: ADEN = 1
PDP ON
no
no
Time out 10 sec?
yes
Goto protection
F_15470_005.eps
071005
no
no
Time out 5 sec?
no
yes
no
Time out 5 sec?
yes
Trapped Startup 4
Goto protection
Trapped Startup 4
F_15470_009.eps
071005
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