Philips TM EM2E, EM2E Schematic

Switch on

off

Standby supply starts oscillating

Standby-supply is running; +3.3V, +5V2 ready

Low_power_standby

Total

time =

‘Standby-info’ = high;µP has been reset by POR

High_power_standby

ca. ...

msec.

Degaussing is activated automatically and should

be deactivated after 12 seconds.

Yes

Standby bit set in NVM?

‘Standby info’ remains

high’

No

Initialize I/O pins of the OTC

Go to on

Total time =

Make ‘Standby-info’ low

Set is in standby-mode

ca ... msec

Mute (see CHS part 3)

5V2 present on the HOP. Hop starts in low power start up mode

Deflection starts on 50kHz; +5V and +8V become present

Wait until +8V detection by the OTC. Vcc HOP present. If +8V is not

Main_power_on

present within 1 second;Standby high and goto protection: “+8V”

reset MSP

read POR bit from the HOP

From

here onwards

I²C communication on

Standby high

no

I²C1 is possible.

Go to

protection

POR available ?

Error code:

yes

“ 11: HOP”

Put Standby info high again

HOP: Set_sync_mode= not_active; set_black_current_stabilisation= not_active

Set_rgb_blanking = ON

Give HOP_start_commando within 23.5 msafter a

POR is obtained from the HOP

DISABLE I²C while EHT is starting up: 250ms

Activate I²C protection. Set protection algorithms active for

HOP_on

Xray protection (USA sets only), HFB

Read NVM information

Initialize tuner

Initialize HIP: IF, source select, video processing

Initialize PICNIC

Initialize MSP, HEF4052

End of freerunning PLL; set_sync_mode=active;

set_black_current_stabilisation= Active (HOP commands)

initialized

Initialize SLDP

Start timer

yes	Get_black_current_failure
	= FAIL
Counter = 0	no
	Counter + 1
no
Time out of 30
seconds reached?	no
	Counter = 11?

yes

Set_user_settings, demute, set_rgb_blanking=OFF

Set is playing	TV

Dashed boxes refer to the names of the stepwise startup.