Alignment and Adjustments
Samsung Electronics
4-1
4. Alignment and Adjustments
1. Usually, a color TV-VCR needs only slight
touch-up adjustment upon installation. Check
the basic characteristics such as height,
horizontal and vertical sync and focus.
2. Observe the picture for good black and white
details. There should be objectionable color
shading; if color shading is present,
demagnetize, perform purity and convergence
adjustments described below.
3. Use the specified test equipment or its
equivalent.
4. Correct impedance matching is essential.
5. Avoid overload. Excessive signal from a
sweep generator might overload the front-end
of the TV. When inserting signal markers, do
not allow the marker generator to distort test
results.
6. Connect the TV only to an AC power source
with voltage and frequency as specified on the
backcover nameplate.
7. Do not attempt to connect or disconnect any
wires while the TV is turned on. Make sure
that the power cord is disconnected before
replacing any parts.
8. To protect against shock hazard, use an
isolation transformer.
CAUTION : There is no high voltage adjustment on this
chassis. The B+ power supply should be +135 volts (with
full color- bar input and normal picture level).
1. Connect a digital voltmeter to the second
anode of the picture tube.
2. Turn on the TV. Set the Brightness and
Contrast controls to minimum (zero beam
current).
3. Adjust the Brightness and contrast controls to
both extremes. Ensure that the high voltage
does not exceed 32 KV under any conditions.
1. Enter & Concel the Factory Mode
(1) Usual Remote Control
Enter : PICTURE OFF -> DISPLAY KEY ->
MENU KEY -> MUTE KEY -> POWER ON
(Press each remote control key with in 3
seconds).
Cancel : POWER OFF -> ON
(2) Factory Remote Mode
Enter : DISPLAY KEY -> FACTORY KEY
(Press each remote control key with in 3
seconds).
Cancel : POWER OFF -> ON
Press the FACTORY key twice at intervals
of at lease 1 second.
(Enter the AGING Mode once)
(3) Set Value When Entering the Factory Mode
- Picture Mode & Sound Mode are set to
the standard data.
(4) Adjustments
- CH.UP/DOWN Key : Use to select the
item you want.
- VOLUME UP/DOWN Key : Increases or
decreases the value of data.
- MENU Key : Use to save the current set
value in EEPROM and exit to the upper
mode.
- Use the TV/VIDEO Key the conver to the
AV Mode.
4-2 High voltage Check
4-1 General Alignment Instructions
4-3 FACTORY MODE CONTROL
Содержание SP43T7HF1X/BOB
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