Samsung HCN5529WX/XAA Service Manual page 15

2-4-3 Sub-Brightness Adjustment
1. Input a sub-brightness adjustment signal.
(TOSHIBA PATTERN)
2. In the stand-by mode, press the remote-control
keys in the following sequence :
3. Select SBT by pressing the
4. Adjust so that the 63 step on the right side of
the screen is not seen (Use the
5. Press the Menu key to exit.
2-4-4 High Voltage (29KV) Check
PRECAUTION
1. Input a lion head pattern.
2. Select "STANDARD" video mode.
3. Warm up the TV for at least 10 minutes.
4. Use a 1000:1 probe.
ADJUSTMENT
1. Connect the (+) terminal of the 1000:1 probe to
the high voltage distributor and the (-)
terminal to GND (located on the deflection
board).
2. Adjust RR471S (located on the deflection
board) so that the digital meter indicates
DC 29V ± 0.1V.
2-4-5 F.S. (Fail Safe) Adjustment
Note : The finished product has VR (RR402S)
adjusted and glued at the factory.
If necessary, do the F.S. adjustments in the
following sequence.
1. Use a digital multimeter.
2. Connect the digital multimeter to the JIG pin
(DZ482S) terminals
3. Adjust VR (RR402S) so that the voltage
becomes 2.25V.
Samsung Electronics
4. After the adjustments are complete, be sure to
2-4-6 F.S. (Fail Safe) Circuit Check
Note : The F.S. Circuit check must be performed
1. Turn on the TV.
keys.
2. Select the "STANDARD" video mode.
keys).
3. Short F/S Test point (located on the SUB PCB).
4. To restore both sound and picture, turn off the
2-4-7 Static Focus Adjustment
PRECAUTION
1. Select the "STANDARD" video mode.
2. Input a crosshatch pattern.
3. Cover the lenses that are not being adjusted.
4. Connect a convergence jig and read data.
5. Adjust the lens for best focus.
STATIC FOCUS (CONTINUED)
glue VR (RR402S) correctly.
after servicing.
Then, both sound and picture disappear.
(Note: Even if the shorted terminals are
removed, both sound and
picture do not appear. This proves the F.S.
circuit is working. )
TV and reset it after about 30 seconds.
(See Fig, 2-1)
Vary the focus pack VR (Red, Blue) on the
front cabinet. Adjust the TV for best possible
focus around the center of the crosshatch
pattern, without losing overall screen balance.
Figure Crosshatch Pattern
Examine these points together.
Examine these points together
Fig. 2-1 Crosshatch Pattern.
Alignment and Adjustments
2-11