Sharp Aquos LC-22SV6U, Руководство по обслуживанию

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LC-22SV6U
(3) Selecting the items
∫
Press the ENTER key (or the cursor
|
/
\
or VOL (+)/(–) N key) at any item other than I2C DATA on Page 2
of the 1st category, and the top of Page 1 of the 2nd category will appear onscreen. (Press ENTER at the
MSP item, for example, and the TV GEQ BAND1 item on MSP Page 1 of the 2nd category will show up.)
∫
Using the MENU, cursor
'
/
"
, MANU MEMORY, AUTO PRESET and similar keys, the pages and items
can be selected only within the setting menu of each of the 1st and 2nd categories. (Press the AUTO
PRESET key on the G/A menu of the 2nd category, for example, and the pages will change in the order of
G/A1
→
G/A2
→
G/A3
→
G/A1.)
∫
To return from the 2nd to the 1st category, press the ENTER key. The cursor will then move back to the
setting item of the 2nd category. (Press the MENU RETURN key at the VPC item of the 2nd category, for
example, and the VPC item on Page 2 of the 1st category will reappear.)
(4) Pages 1 and 2 of G/A
∫
With the PAL/NTSC item selected, press the (+)/(–) or cursor
|
/
\
key, and the register select mode will be
called up and the cursor will move to Address 01.
∫
Press the CH (
ù
)/ (
Ù
) key, and the cursor will move up and down. With the cursor
|
/
\
key, it will move right
and left. Then press the ENTER key.
∫
Now the cursor moves to the selected setting. With the VOL (+)/(–) or cursor
|
/
\
key, the settings change
from 00 to FF.
5. Initialization
Connect pins (81) and (82) of IC3501 (microprocessor) to GND, and turn on the power.
6. Model-by-model transmission data
Nothing particular.
7. Adjustments
(1) +B Adjustment (R3717)
a) Receive the standard color bar signal.
b) Connect a digital voltmeter to TP3722. Adjust R3717 to achieve the 5.00±0.02 V.
Note: The 5.00V level is used as reference for all the supply voltages. Finely adjust and maintain this level.
(2) +B Adjustment (R4525)
a) Receive the standard color bar signal.
b) Connect the digital voltmeter to TP4531. Adjust R4525 to achieve the 13.00±0.05 V.
Note: This supply voltage is used as reference for all the gradation voltage. Finely adjust and maintain this
level.
(3) Common bias adjustment: COM BIAS on Adjust Process Page 1
Make this adjustment each for the 50 Hz and 60 Hz frequencies.
Set the input signal according to the indication.
a) Call up the adjustment process mode.
b) Select G/A on Adjust Process Page 2 first and then "14: DOT REVERSE FLICKER PATTERN 2" in "G/A
TEST PATTERN 1" on Page 3.
c) Then select "COM BIAS 60/COM BIAS 50" on Adjust Process Page 1.
d) Make the setting so that the flicking onscreen becomes minimum.