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5V2 present on the HOP. HOP starts in low power start up mode
Deflection starts on 50kHz; +5V and +8V become present
+5V and +8V levels can be detected by the Painter. Vcc of the HOP is present.
Standby high
no
Go to protection
Error code 05
'HOP POR
not successfull'
Activate I2C protection. Set protection algorithms active for
Fault finding and repair tips
off
Standby supply starts oscillating
Standby-supply is running; +3.3V, +5V2 ready
'Standby-info' = high; µP has been reset by POR
Degaussing is activated automatically and should
be acivated after 12 seconds
Standby bit set in NVM?
no
Initialize I/O pins of the OTC
Make 'Standby-info' low
Mute
Activate protection for +8V and +5V
Wait 1500ms and reset MSP
(Sound-IC)
read POR bit from the HOP
POR available within 1 second ?
yes
Put 'Standby-INFO' high again
Give HOP_start_commando within 23.5 ms after a
POR is obtained from the HOP
DISABLE I2C while EHT is starting up: 250ms
I2C, +5V, +8V, HFB, FBX
Initialize I2C IC's
Set Black Current Stabilisation = Active
on
yes
Figure 5-8
EM1A
5.
Low_power_standby
High_power_standby
'Standby-info' remains
high
Supply is in standby-mode
Main_power_on
From here onwards,
I2C communication is
possible
HOP_on
CL 06532130_021.eps
GB 23
171000
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