Philips 26HF5473/10 Service Manual Download Page 23

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Alignments

Alignments

Index of this chapter:

8.1 General Alignment Conditions
8.2 Hardware Alignments
8.3 Software Alignments
8.4 Setting the Correct iTV Mode
8.5 Wireless Smart-Loader (22AV1120/00)

Notes:

•

Only information that is related to the iTV module, is
published in this manual. For the other information, see the
relevant chassis manual (order code on front page).

•

Figures below can deviate slightly from the actual situation,
due to the different set executions.

•

The Service Default Mode (SDM) and Service Alignment
Mode (SAM) are described in chapter 5. Menu navigation
is done with the Cursor Up, Down, Left or Right keys of the
remote control transmitter.

8.1

General Alignment Conditions

Perform all electrical adjustments under the following
conditions:
Mains voltage and frequency: 100-240 V / 50/60 Hz.
Allow the set to warm up for approximately 10 minutes.
Test probe: Ri > 10 M

; Ci < 2.5 pF.

8.2

Hardware Alignments

There are no hardware alignments foreseen for the LCD-TV.

8.3

Software Alignments

With the software alignments of the Service Alignment Mode
(SAM) the geometry, white tone and tuner (IF) can be aligned.
To store the data: Use the RC button Menu to switch to the
main menu and next, switch to ‘Stand-by’ mode.

8.3.1

Options

Options OP1...OP7 in the SAM menu can be used for quickly
restoring 64 features or settings of the Hercules part of the TV
set to their original default factory values (8 groups of 8
features/settings each). When the decimal value of one option
byte OP1...OP7 is changed (see the first table below) then a
group of 8 bits, representing 8 Hercules options or features, is
changed as well (see the second table below for a detailed
description of the features or settings that are changed).
The second table shows which option byte (OP1...OP7)
represents which group of 8 option bits. Each bit (0...7)
switches a particular Hercules feature or setting ON or OFF,
depending on its value (1 or 0).
It is also possible to change the features or settings mentioned
in the second table directly at bit level, by means of the NVM
Editor in the SAM menu. In the NVM Editor, first the correct
NVM address (ADR) has to be entered, then the correct value
(VAL, 1 or 0) for each bit (see second table), and finally the
settings have to be stored (STORE). For quickly restoring the
Hercules part of the TV set to its original factory settings,
however, it is more convenient to simply enter the default
factory settings OP1...OP7 that are given in the first table
below. How to do this, is described in the next paragraph.

How to Change an Option Byte Directly

As has been explained above, an Option byte (OP) represents
a number of different Hercules options. Changing these bytes
directly makes it possible to set all Hercules options very fast.
All options are controlled via seven option bytes. Select the
option byte (OP1.. OP7) with the Menu Up/ Down keys, and

enter the new (decimal) value. For the correct Factory Default
settings, see the first table below. For more detailed
information, see the second table.

Leaving the Option submenu saves the changes in the Option
Byte settings. Some changes will only take effect after the set
has been switched “off” and “on” with the AC power switch (cold
start).

Table 8-1 Option codes OP1...OP7

How to Change Options at Bit Level

If you wish to know which features or settings of the Hercules
are changed via OP1...OP7, or if you want to change each
option or feature bit by bit, use the more detailed table below.

Note:

the table below contains only part of the NVM settings

that can be changed. For further settings, see also the table
“ADC Gain and Grey scale alignment” elsewhere in this
manual.

Table 8-2 Option bytes and bits overview

Factory Default Settings

Option Byte

32HF7473/10

26HF5473/10

OP1

152

OP2

OP3