Philips TM EM2E, EM2E Schematic

Mute (see CHS part 3)

Read NVM information

Total time =

ca. ... msec.

Initialize I/O pins of the OTC

Wait until +8V detection by the OTC. Vcc HOP present. If +8V is not 5V2 present on the HOP. Hop starts in low power start up mode

read POR bit from the HOP

Standby high

Give HOP_start_commando within 23.5 ms after a

POR is obtained from the HOP

Put Standby info high again

yes

‘Standby info’ remains

Degaussing is activated automatically and should

be deactivated after 12 seconds.

From here onwards,

DISABLE I²C while EHT is starting up: 250ms

HOP: Set_sync_mode= not_active; set_black_current_stabilisation= not_active

Activate I²C protection. Set protection algorithms active for

Total time = ca ... msec

Low_power_standby

High_power_standby

Switch on

off

Standby supply starts oscillating

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

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

Yes

Standby bit set in NVM?

high’

Go to protection Error code: “ 11: HOP”

Make ‘Standby-info’ low

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

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

reset MSP

POR available ?

Set_rgb_blanking = ON

Set is in standby-mode

Main_power_on

I²C communication on I²C1 is possible.

Xray protection (USA sets only), HFB

HOP_on

Initialize tuner

Initialize HIP: IF, source select, video processing

Initialize MSP, HEF4052

End of freerunning PLL; set_sync_mode=active;

set_black_current_stabilisation= Active (HOP commands)

Initialize SLDP

Dashed boxes refer to the names of the stepwise startup.

Set_user_settings, demute,

Get_black_current_failure

Counter + 1

Counter = 0

yes

Start timer

Time out of 30 seconds reached?

Initialize PICNIC

= FAIL

Counter = 11?

initialized

yes

set_rgb_blanking=OFF

Set is playing