DOWNLOAD Sharp LC-32P50E (serv.man8) Service Manual ↓ Size: 257.99 KB | Pages: 14 in PDF or view online for FREE

Model
LC-32P50E (serv.man8)
Pages
14
Size
257.99 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Adjustment procedure
File
lc-32p50e-sm8.pdf
Date

Sharp LC-32P50E (serv.man8) Service Manual ▷ View online

LC-26P50E
LC-32P50E
LC-37P50E
28
6) Take the same steps as in 5) for the following.
1 Set Point 2 to the specified gradation "136".
Multiply the G initial value "B2" of Point 2 by ["A" / Gradation "136" of Point 2] to have the G setting
C2 of Point 2. Adjust the MGAMMA R2 and B2 values, respectively, to the Point standard ones.
2 Set Point 3 to the specified gradation "248".
Multiply the G initial value "B3" of Point 3 by ["A" / Gradation "248" of Point 3] to have the G setting
C3 of Point 3. Adjust the MGAMMA R3 and B3 values, respectively, to the Point 3 standard ones.
3 Set Point 4 to the specified gradation "324".
Multiply the G initial value "B4" of Point 4 by ["A" / Gradation "324" of Point 4] to have the G setting
C4 of Point 4. Adjust the MGAMMA R4 and B4 values, respectively, to the Point 4 standard ones.
4 Set Point 5 to the specified gradation "396".
Multiply the G initial value "B5" of Point 5 by ["A" / Gradation "396" of Point 5] to have the G setting
C5 of Point 5. Adjust the MGAMMA R5 and B5 values, respectively, to the Point 5 standard ones.
5 Set Point 6 to the specified gradation "448".
Multiply the G initial value "B6" of Point 6 by ["A" / Gradation "448" of Point 6] to have the G setting
C6 of Point 6. Adjust the MGAMMA R6 and B6 values, respectively, to the Point 6 standard ones.
[White balance adjustment standard values]
Point 1 standard values: x = 0.272, y = 0.277 (gradation 96)
Point 2 standard values: x = 0.272, y = 0.277 (gradation 136)
Point 3 standard values: x = 0.272, y = 0.277 (gradation 248)
Point 4 standard values: x = 0.272, y = 0.277 (gradation 324)
Point 5 standard values: x = 0.272, y = 0.277 (gradation 396)
Point 6 standard values: x = 0.272, y = 0.277 (gradation 448)
9.  Initialization to factory settings
Adjustment item
Adjustment conditions
Adjustment procedure
1
Factory settings
See to below caution
» Enter the adjustment process mode.
» Bring the cursor on to [INDUSTRY INIT] on page 2/12.
» Using the VOL (+/–) keys, set to [ON]. Press the OK key to execute the
initialization. The /////// pattern appears, and the adjustment process
mode is automatically replaced by the TV screen. Now the initialization is
complete.
` Never turn off the power during the initialization process.
The following settings will be back to their factory ones.
1. User settings
2. Channel data (e.g. broadcast frequencies)
3. Password data
To exit the adjustment process mode, unplug the AC power cord from the outlet to force off the power. (When
the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this
case, wait 10 seconds or so before plugging.)
Caution: When the factory settings have been made, all user setting data, including the channel settings, are
initialized. (The adjustments done in the adjustment process mode are not initialized.) Keep this in
mind when initializing these settings.
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10-4. Common bias adjustment
Using the cursor (UP/DOWN) keys, move the cursor to "COM BIAS" on the display process service page. With
the cursor (LEFT/RIGHT) keys, select the setting. Now use the cursor (UP/DOWN) again to vary the setting,
and the test pattern appears onscreen. Make adjustment to minimize the flicker around the center of the
screen.
10.  Display adjustment procedure
10-1. Procedural steps
Enter the display process mode. Adjust the common bias.
10-2. Entering and exiting the display process mode
(1)While holding down the "VOL (+)" and "P (Ù)" keys at once, plug in the AC power cord to turn on the
power. The letter [K]  appears on the screen.
(2) Next use the remote controller keys (VOL (+/–) or P (Ù/ù). Multiple lines of red characters appearing
on the screen indicate that the set is now in the display process mode. When you fail to enter this mode
(the display is the same as normal startup), retry the procedure.
(3) To exit the display process mode after the adjustment is done, unplug the AC power cord to force off the
power. (When the power is turned off with the remote controller, once unplug the AC power cord and
plug it in again.)
Caution: Use due care in handling the information described here lest the users should know how
to enter the display process mode. If the settings are tampered with in this mode, unrecoverable
system damage may result.
Function 1 (when on the left side of a page)
Moving up by one item or moving to the
previous page (when at the top)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Test pattern off
Moving to the next page
Moving up by one item or moving to the
previous page (when at the top)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Function 2 (when changing a numeric value)
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item
Moving to the left by one item
Executing the item (in the case of W or R
items)
Moving to the next page
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item
Moving to the left by one item
Key
Cursor UP
                '
Cursor DOWN
                "
Cursor RIGHT
                |
Cursor LEFT
                \
OK
INPUT
 mark of the R/C
 
(caution required)
P (ù)
P (Ù)
VOL (+)
VOL (–)
10-3. Key function table in display process mode
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10-5. Lamp error detection
(1) Function
This LCD color TV set incorporates a lamp error detection feature that automatically turns off the power
for safety under abnormal lamp or lamp circuit conditions. If by any chance anything is wrong with the
lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will
result.
1 The power is interrupted in about six seconds after it is turned on.
(The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 250
ms and OFF for 1 sec).
2 If the above phenomenon 1 occurs five times consecutively, it becomes impossible to turn on the
power. (The power LED keeps blinking in red: ON for 250 ms and OFF for 1 sec).
(2) Measures
1 Checking with lamp error detection OFF
Enter the display process mode, referring to "10-2. Entering and exiting the display process mode." If
there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.)
Then, you can check the operation to see if the lamp and lamp circuit are in trouble.
2 Resetting the lamp error count
After the lamp and lamp circuit are found out of trouble, reset the lamp error count. If a lamp error is
detected five consecutive times, the power cannot be turned on. Using the cursor (UP/DOWN) key,
move to the cursor to [L ERR RESET], Line 4 on display process mode service page 4. With the
cursor (LEFT/RIGHT) keys, select the [L ERR RESET] value. Finally press the cursor (UP/DOWN)
keys to reset the value to "0". Reset to "0 "
 
 
 
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10-6. List of adjustment process modes (Display)
(Examples LC-32P50E)
Page of 14
Display

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