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
24
6. Special features
  
`
ERROR STANDBY CAUSE (Page 1/12)
Display of a operating hours of the last standby.
The cause (code) of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the set in trouble.
  
`
EEP SAVE (Page 12/12)
Storage of EEP adjustment value.
  
`
EEP RESTORE (Page 12/12)
Retrieval of EEP adjustment value from storage area.
7. Video signal adjustment procedure  
* The adjustment process mode menu is listed in Section 5.
(1) Signal check
Signal generator level adjustment check (Adjustment to the specified level)
» Composite signal
:
0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
» Composite signal PAL
:
0.7Vp-p ±0.02Vp-p (Pedestal to white level)
» RGB signal
:
0.7Vp-p± 0.02Vp-p
» 15K component signal
:
Y level
0.7Vp-p±0.02Vp-p (Pedestal to white level)
(50 Hz)
PB, PR level
0.7Vp-p  ±0.02Vp-p
» 33K component signal
:
Y level
0.7Vp-p  ± 0.02Vp-p (Pedestal to white level)
PB, PR level
0.7Vp-p  ±0.02Vp-p
(2) Entering the adjustment process mode
Enter the adjustment process mode according to Section 3.
(3) RF AGC adjustment
Adjustment point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
Sprit Field Color Bar
RF signal UV
[Terminal]
TUNER
2
Auto adjustment Adjustment process page 3
performance
»
Feed the PAL full field color bar signal (E-12ch) to TUNER.
Signal level: 54 
±
1 dB µV (75Ω LOAD)
Bring the cursor on [ËRF AGC ADJ] and press [OK].
[ËRF AGC ADJ OK] appears when finished.
[E-12CH]
↑100% white
LC-26P50E
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Adjustment point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
Full Field Color Bar
Composite or RF signal
[Terminal]
EXT3 VIDEO IN
TUNER
2
Auto adjustment Adjustment process page 3
performance
» Feed the PAL full field color bar signal (75% color saturation) to EXT3
VIDEO IN.
» Feed the RF signal (PAL color bar) to TUNER.
» Make sure the PAL color bar pattern (E-12) has the sync level of 7:3 with
the picture level.
Bring the cursor on [ËPAL + TUNER ADJ] and press [OK].
[ËPAL + TUNER ADJ OK] 
appears when finished.
(4) PAL signal & tuner adjustment
[E-12CH]
↑100% white
↑100% white
[VIDEO IN SIGNAL]
(5) SECAM signal adjustment
(6) N358 signal adjustment
Adjustment point
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
SECAM
Full Field Color Bar
[Terminal]
EXT3 VIDEO IN
2
Auto adjustment Adjustment process page 3
performance
» Feed the SECAM full field color bar signal (75% color saturation) to
EXT3 VIDEO IN.
Bring the cursor on [ËSECAM ADJ] and press [OK].
[ËSECAM ADJ OK] appears when finished.
100% white ↑
Black
Adjustment point
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
N358
Full Field Color Bar
[Terminal]
EXT3 VIDEO IN
2
Auto adjustment Adjustment process page 3
performance
» Feed the N358 full field color bar signal (75% color saturation) to EXT3
VIDEO IN.
Bring the cursor on [ËN358 ADJ] and press [OK].
[ËN358 ADJ OK] appears when finished.
↑100% white
75% color bar
LC-26P50E
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(7) ADC adjustment (Component 15K)
(8) ADC adjustment (Component 33K)
(9) HDMI signal adjustment
Adjustment point
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
COMP15K, 50Hz
100%Full Field Color Bar
[Terminal]
EXT3 COMPONENT IN
2
Auto adjustment Adjustment process page 4
performance
» Feed the COMPONENT 15K 100% full field color bar signal (100% color
saturation) to EXT3 COMPONENT IN.
Bring the cursor on [ËCOMP15K ADJ] and press [OK].
[ËCOMP15K ADJ OK] appears when finished.
100% white ↑
Black
Adjustment point
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
COMP33K, 60Hz
100%Full Field Color Bar
[Terminal]
EXT3 COMPONENT IN
2
Auto adjustment Adjustment process page 5
performance
» Feed the COMPONENT 33K 100% full field color bar signal (100% color
saturation) to EXT3 COMPONENT IN.
Bring the cursor on [ËHDTV ADJ] and press [OK].
[ËHDTV ADJ OK] appears when finished.
100% white ↑
Black
Adjustment point
Adjustment conditions
Adjustment procedure
1
Adjustment
Recommended signal
generator:
Leader Electronics-
made LT448
2
Auto adjustment Adjustment process page 6
» Set the output signal to 1080i/59.94 (30sF) RGB digital one.
» Set the signal to full color bar (100% saturation) one. 8 bars with the
rightmost one in black. Dynamic range: min 16 to max. 235.
» Feed the signal to HDMI IN from the signal generator's DVI terminal
through the DVI-HDMI conversion cable.
Bring the cursor on [ËHDMI ADJ] and press [OK].
[ËHDMI ADJ OK] appears when finished.
100% white ↑
Black
LC-26P50E
LC-32P50E
LC-37P50E
27
8.  Adjustment of white balance
When the LCD panel or LCD control PWB has been replaced, the white balance may get out of spec. If it is too
 much out of spec, take this adjustment.
(1) Preparations
1) Have a white balance measuring instrument [Minolta CA-210] at hand. Place a luminance meter at the
center of the screen.
2) Turn on the TV power and get the set in the following conditions.
AV mode: [DYNAMIC], Monochrome: [ON], Black: [OFF]
The signal is not particularly specified.
(2) Adjustment procedure
1) Enter the adjustment process mode, referring to "3. Entering and exiting the adjustment process mode."
2) Using the cursor (UP/DOWN) keys, select Adjustment Process Pages 10/12/ and 11/12.
3) Using the program (ù/Ù) keys, move the cursor to MGAMMA R/G/B.
4) Set the cursor to MGAMMA G6 to have the specified gradation "448" at Point 6. The luminance meter
shows the x and y status values. Using the cursor (LEFT/RIGHT) and VOL (+/–) keys, obtain the standard
values of Point 6: x = 0.272 and y = 0.277. Now jot down the G adjustment value of Point 6 ("A"). Do the
same for MGAMMA R6 and MGAMMA B6.
5) Move the cursor to Point 1 (MGAMMA R1/G1/B1) to have the specified gradation "96" at Point 1.
The G initial value "B1" of Point 1 is displayed. Make the following calculation.
(G initial value "B1" of Point 1) x [(G adjustment value "A" of Point 6) / (Gradation "96" of Point 1)] = C1
Adjust the keys so that the C1 value becomes the G setting of Point 1.
For the R and B values of Point 1, adjust the MGAMMA R1 and B1 values, respectively, to the Point 1
standard ones.
(10) ADC adjustment (SCART RGB)
Adjustment point
Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
RGB
Full Field Color Bar
[Terminal]
EXT1 SCART IN
2
Auto adjustment Adjustment process page 7
performance
» Feed the full field color bar signal to EXT1 SCART RGB IN.
Bring the cursor on [ËRGB ADJ] and press [OK].
[ËRGB ADJ OK] appears when finished.
100% white ↑
Black
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