Monday, February 02, 2015

SHARP LC-32A37M LCD TV FACTORY SETTING AND AUDIO AMPLIFIER CIRCUIT

SHARP BLU RAY

FACTORY SETTING AND AUDIO AMPLIFIER CIRCUIT

Entering and cancel the adjustment process mode

While holding down the TV/VIDEO and Volume DOWN keys at the same time, set the Power switch to ON. (“K” standing for inspection process mode is displayed in the upper left portion of the screen.)

Press the Channel DOWN and Volume DOWN keys at the same time. (The adjustment process mode screen appears.)

To cancel it, turn off the power using the Power switch or remote control.

Adjusting the LCD panel

Common bias adjustment

1) With the set completed, call the process adjustment mode.

2) Using the UP/DOWN keys and ENTER key on the remote controller, select ADJ1 (TAMP) [VCOM ADJ] of the DVP item on ADJUSTMENT PROCESS PAGE 2.

3) Press the ENTER key to make sure the adjustment pattern (flicker) gets displayed.

4) Using the CURSOR L/R keys, adjust the setting to minimize the flicker around the center of the screen.

5) With the optimum setting in Step 4) above, press the ENTER key to turn off the pattern.


PROCESS MODE
Adjustment item
Adjustment procedure
Adjustment mode
Press the test key at the test remote control

Tuner level adjustment

Adjustment item
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
PAL Split Field Colour bar
signal.
[Terminal]
TUNER
Feed the PAL Split Field Colour bar RF signal (by use of E-12ch) to TUNER
2
Auto adjustment
performance
Process Mode
Page 2 ADJ
ADJ1 (TAMP)
Bring the cursor on [TAMP ALL] and press [RIGHT].
[OK] appears when finished.

Composite signal adjustment

Adjustment item
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
PAL Full Field Colour bar
signal.
[Terminal]
INPUT-6 VIDEO INPUT
Feed the PAL Full Field Colour bar signal (75% colour saturation) to VIDEO INPUT6
2
Auto adjustment
performance
Process Mode Page
ADJ2 (CVBS TAMP)
Bring the cursor on [TAMP ALL] and press [RIGHT].
[OK] appears when finished

Component 15K 50Hz signal adjustment (BE-SD)

Adjustment item
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
COMP15K 50Hz (576i)
100% Full Field Colour bar
signal.
[Terminal]
INPUT-6 COMPONENT
INPUT.
Feed the COMPONENT 15K 50Hz (576i) 100% Full Field Colour bar signal (100% colour
saturation) to INPUT-6 component input.
2
Auto adjustment
performance
Process Mode Page
ADJ6 (BE-SD)
At the related page, bring the cursor on [AUTO GAIN-OFFSET] and press [RIGHT].
[OK] appears when finished.

Component 33K 60Hz signal adjustment (BE-HD)

Adjustment item
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
COMP33K 60Hz (1080i)
100% Full Field Colour bar
signal.
[Terminal]
INPUT-6 COMPONENT
INPUT
Feed the COMPONENT 33K 60Hz (1080i) 100% Full Field Colour bar signal (100%
colour saturation) to INPUT-6 component input
2
Auto adjustment
performance
Process Mode Page
ADJ5 (BE-HD)
At the related page, bring the cursor on [AUTO GAIN-OFFSET] and press [RIGHT].
[OK] appears when finished.

PC (analog RGB) signal adjustment (BE-PC)

Adjustment item
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
XGA 60Hz
75% Full Field Colour bar
signal.
[Terminal]
INPUT-8 PC INPUT
Feed the XGA 60Hz 75% Full Field Colour bar signal (75% colour saturation) to INPUT-8
PC input.
*Please confirm Sync is turning off
2
Auto adjustment
performance
Process Mode Page
ADJ7 (BE-PC)
Bring the cursor on [AUTO GAIN-OFFSET] and press [RIGHT].
[OK] appears when finished.

White balance adjustment

Adjustment item
Adjustment conditions
Adjustment procedure
1
Adjustment Setting
Brightness: MAX (+8)
Set the luminance meter on
the center of the screen
For the details of white balance adjustment procedure, please refer to white
balance adjustment spec for current model.
1) Confirm the set condition.
2) Connect the Luminance meter.
3) Through RS-232C command, adjustment mode screen is displayed
2
Auto Adjustment
[Adjustment Procedure]
1) Using the R/C, set the LCD TV to adjustment mode.
2) Set the specified gradation for point 6, fix the most faint colour to get reference value, adjust others 2 colour to minus adjustment for reference values
of point 6.
3) Set the specified gradation for point 2. Set G of point 2 to the default value
[(160 x G value of point 6/960), with fractions rounded] and adjust RB to the
reference values of point 2.
[Adjustment value]
* Teaching set send by engineering dept is set as reference
[Reference values for adjustment reference]
Equipment: Luminance meter [Minolta CA-210]

Level
Spec Data
Adjustment
Spec.
Inspection
Spec.
Point 6
ref.
values
928
x=0.272
y=0.277
±0.0040
±0.0060
Point 2
ref.
values
320
x=0.272
y=0.277
±0.0020
±0.0040
Factory settings

With the factory settings made, turn off the AC power to save them.
NOTE: Do not turn on the power once the factory settings have been made. If the power is accidentally turned on, make the factory settings again.
Do not use the remote controller to turn off the power.



Adjustment item
Adjustment conditions
Adjustment procedure

Factory settings
Turn off AC power to
save the settings

1) Setting is done with test remote control.
2) “M”, is displayed in the upper left portion of the screen by continuing to press the 'Factory Setting' key
on the remote control.
3) When “SETTING COMPLETE” is displayed in the middle of the screen after a few seconds, setting is
complete.
The following settings are initialized together with the factory settings.
1) User settings
2) Channel data (broadcasting frequencies, etc.)
3) Maker option settings
4) Password data
5) Part of adjustment process-related settings (changes according to destinations)







AUDIO AMPLIFIER CIRCUIT 

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