Video Signal Adjustment Procedure - Sharp LC-46DH65E Service Manual

LC-46DH65E/S, LC-46DH66E

9. Video signal adjustment procedure

The adjustment process mode menu is listed in Section 5.
Signal generator level adjustment check (Adjustment to the specified level)
• Composite signal PAL
• RGB signal
• 15K component signal (50 Hz) : Y level
• 33K component signal
1. Entering the adjustment process mode
Enter the adjustment process mode according to Section 2.
2. PAL signal adjustment
Adjustment point
1 Setting
2 Auto adjustment
performance
CAUTION: When going on "PAL signal adjustment" of 2 item after all adjustment completion, please be sure to put "TUNER adjustment" of 3 item into
effect after it.
3. TUNER adjustment
Adjustment point
1 Setting
2 Auto adjustment
performance
4. SECAM adjustment
Adjustment point
1 Setting
2 Auto adjustment
performance
: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
: 0.7Vp-p ± 0.02Vp-p
: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
: 0.7Vp-p ± 0.02Vp-p
: PB, PR level
: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
: Y level
: 0.7Vp-p ± 0.02Vp-p
: PB, PR level
Adjustment Conditions
[Signal]
PAL
Full Field Color Bar composite
signal
[Terminal]
EXT1 SCART IN
Page 4/16
Adjustment Conditions
[Signal]
PAL
Split Field Colour Bar RF signal
U/V
[Terminal]
TUNER
Page 3/16
Adjustment Conditions
[Signal]
SECAM
Full Field Colour Bar signal
[Terminal]
EXT1 SCART IN
Page 4/16
Adjustment procedure
• Feed the PAL full field colour bar signal (75% colour saturation) to EXT1
SCART IN.
100% white
Bring the cursor on [PAL ADJ] and press [OK] [PAL ADJ OK] appears when fin-
ished.
Adjustment procedure
• Feed the PAL Split Field colour bar signal (E-12ch) to TUNER.
• Make sure the PAL colour bar pattern has the sync level of 7:3 with the picture
level.
Signal level: 55 dB µV ± 1dB (75Ω LOAD)
Bring the cursor on [TUNER ADJ] and press [OK]
[TUNER ADJ OK] appears when finished.
Adjustment procedure
• Feed the SECAM full field colour bar signal (75% colour saturation) to EXT1
SCART IN.
100% white
Bring the cursor on [SECAM ADJ] and press [OK] [SECAM ADJ OK] appears
when finished.
3 – 12
[VIDEO in signal]
[E-12CH]
100% white