User's Manual Part 1

ManualsBrandsThomson Broadcast & Multimedia ManualsElectronicsUHF Digital transmitter, for use with MediaFlo

Digital Liquid Cooled UHF

TV Equipment

Exploitation

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1.6.11. Procedures for changing quality thresholds

(in dB) from a set point before the

♦ The set point (Shoulder, Ripple) is the parameter threshold beyond which the ADAPT exciter

performs a correctio points can be defined in the "CONTR window.

The power set p

operator in the "INS "

Having already configu mode and also having unlocked the PCL and

c N

adju in a

The quality threshold is the maximum permissible deviation

occurrence of a major fault (overall quality assessment of 13/20), which produces a transmitter

changeover in an N+1 or Passive Reserve system. In SD or DD systems, no changeover is

performed.

n. The set OL MAINT Level 3"

♦ oint is the calibrated RF power of the

TALLATION PARAMETERS Level 1

red the system in maintenance

transmitter, it is fixed and is available to the

window.

alled up the "CO

sting or chang

TROL MAINT Level 2" window (refer

g n operational parameter), carry out the following o

to procedures which are necessary prior to

perations :

ACTIONS RESULT

To call up the

"QUALITY

THRESHOLD

SETTINGS" window

♦ In the "CONTROL MAINT Level 2"

window, press on the "QUALITY

THRESHOLDS" key.

♦ The "QUALITY THRESHOLD SETTINGS"

window appears on the PCL and displays the

current quality thresholds.

Changing quality

thresholds

♦ message window of the

♦ required value on the window

w title.

Press on the

threshold to be changed.

Enter the

keyboard.

The "NUMERICAL VALUE" window appears.

♦ The value is displayed under the windo

Validation of selection

♦ ER" to validate the entry. ♦ ALITY THRESHOLD SETTINGS"

♦

Press "ENT The "QU

window reappears.

The new threshold value is displayed on the

corresponding key.

Cancelling the

selection

rea

♦ Press the "CANCEL" key.

T e "QUALITY THRESHOLD SETTINGS" window

ppears.

♦ The threshold value remains unchanged.

1.6.12. Procedure for setting the time and the date

Having already configured the system in maintenance mode

called up the "CONTROL MAINT Level 2" window (refer to s which are necessary prior to

adjusting or changing an operational parameter), carry out the

and also having unlocked the PCL and

procedure

following operations:

ACTIONS RESULT

To call up the "DATE

& TIME" window of

the PCL

♦ Press on the "DATE" key in the

"CONTROL MAINT Level 2" window.

♦ e time

s are frozen to the time instant

e w was called up.

The "DATE & TIME" window appears; th

and date value

wh n the windo

Changing the time

and date values

the time and date values using the

The changed parameter values appear in the

control keys ("+"

♦ Set

incrementation and decrementation keys

("+" and "-").

♦

corresponding message windows. The number

resulting from the increment or decrement is

being displayed between the two

and "-") .

Validation of selection

♦ Press "VALID" to validate the entry. ♦ The new values appear under the title of window

"DATE & TIME".

Cancelling the

selaction

♦ press on the "EXIT" key. ♦ The "CONTROL MAINT Level 2" window

reappears.

♦ The time and date settings have not been

changed. If the "VALID" key of the "DATE &

TIME" window was not selected.

9932 V2

45321648.01 108 B E

Checked

29 / 192

Numéro / Number Doc. Rev. Lan

27/06/2006