Philips L01.1U, Руководство по обслуживанию

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Alignments EN 89 L01.1U AC 8.
IF-PLL
This adjustment is auto-aligned. Therefore, no action is
required.
AGC (AGC take over point)
1.
Connect the RF output of a video pattern generator to the
antenna input.
2. Input a color bar test pattern to the television set.
3. Set the amplitude of the video pattern generator to 10 mV
and set the frequency to 61.25 MHz (channel 3).
4. Connect a DC multimeter to pin 1 of the tuner (item 1000
on the main chassis).
5. To enter SDAM, press the following key sequence on the
remote control transmitter: 0 6 2 5 9 6 directly followed by
the MENU button (do not allow the display to time out
between entries while keying the sequence).
6. Use the MENU UP/DOWN keys to highlight the TUNER
sub menu.
7. Press the MENU LEFT/RIGHT keys to enter the TUNER
sub menu.
8. Use the MENU UP/DOWN keys to select AGC.
9. Use the MENU LEFT/RIGHT keys to adjust the AGC value
(default value is 27) until the DC-voltage at pin 1 of the
tuner lies between 3.8 V and 2.3 V.
10. Press the MENU button to return to the top level SDAM
menu.
11. To ensure the AGC change takes effect:
– Turn the television set 'off' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.
– Disconnect the television set from AC power for at
least ten seconds.
– Reconnect the television set to AC power.
– Turn the television set 'on' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.
SL (Slicing Level)
This adjustment sets the sync slicing level for non-standard
signals. You must turn it 'on' to help correct picture instability in
premium decoded cable channels.
•
OFF: slicing level dependent on noise detector.
• ON: fixed slicing level of 70 %.
To adjust SL:
1.
To enter SDAM, press the following key sequence on the
remote control transmitter: 0 6 2 5 9 6 directly followed by
the MENU button (do not allow the display to time out
between entries while keying the sequence).
2. Use the MENU UP/DOWN keys to highlight the TUNER
sub menu.
3. Press the MENU LEFT/RIGHT keys to enter the TUNER
sub menu.
4. Use the MENU UP/DOWN keys to select SL.
5. Use the MENU LEFT/RIGHT keys to toggle SL 'Off' and
'On'.
6. Press the MENU button to return to the top level SDAM
menu.
7. To ensure the SL setting is saved:
–
Turn the television set 'off' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.
– Disconnect the television set from AC power for at
least ten seconds.
– Reconnect the television set to AC power.
– Turn the television set 'on' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.
8.3.3 White Tone
Figure 8-4 White tone alignment menu
The values of the 'black cut off level' can be adjusted in the
'WHITE TONE' sub menu.
Normally, no alignment is needed for 'WHITE TONE', and the
given default values are used.
Default settings:
NORMAL (color temperature = 9600 K):
–
NORMAL RED = 40
– NORMAL GREEN = 40
– NORMAL BLUE = 40
To adjust NORMAL RED, NORMAL GREEN, and NORMAL
BLUE:
1.
To enter SDAM, press the following key sequence on the
remote control transmitter: 0 6 2 5 9 6 directly followed by
the MENU button (do not allow the display to time out
between entries while keying the sequence).
2. Use the MENU UP/DOWN keys to highlight the WHITE
TONE sub menu.
3. Press the MENU LEFT/RIGHT keys to enter the WHITE
TONE sub menu.
4. Use the MENU UP/DOWN keys to select NORMAL RED,
NORMAL GREEN, or NORMAL BLUE.
5. Use the MENU LEFT/RIGHT keys to adjust the value of
NORMAL RED, NORMAL GREEN, or NORMAL BLUE.
6. When all desired changes to the WHITE TONE sub menu
values are made, press the MENU button to return to the
top level SDAM menu.
7. To ensure the WHITE TONE settings are saved:
–
Turn the television set 'off' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.
– Disconnect the television set from AC power for at
least ten seconds.
– Reconnect the television set to AC power.
– Turn the television set 'on' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.
8.3.4 Geometry
The geometry alignments menu contains several items for
correct picture geometry alignment.
1.
Connect the RF output of a video pattern generator to the
antenna input.
2. Input a crosshatch test pattern to the television set.
3. Set the amplitude of the video pattern generator to at least
1 mV and set the frequency to 61.25 MHz (channel 3).
32PT5431/37R 0 23 129 1 252 152 0
32PT5531/37R 0 23 129 1 252 152 64
32PT5631/37R 0 23 129 162 252 153 80
32PT6331/37R 0 31 145 162 252 153 80
Typenumber OP1 OP2 OP3 OP4 OP5 OP6 OP7
NORMAL BLUE XX
NORMAL GREEN XX
S
NORMAL RED XX
CL 26532046_005.eps
040402
www.freeservicemanuals.info 22/11/2016
Published in Heiloo Holland