Video Signal Adjustment Procedure; Signal Check; Entering The Adjustment Process Mode; Rf Agc Adjustment - Sharp LC-32D44E Service Manual

[7] Video signal adjustment procedure

* The adjustment process mode menu is listed in Section 5.

1. Signal check

1. Signal generator level adjustment check (Adjustment to the specified level)
• Composite signal PAL
• 15K component signal (50 Hz)

2. Entering the adjustment process mode

1. Enter the adjustment process mode according to Section 3.

3. RF AGC adjustment

Adjustment point
1 Setting
2 Auto adjustment
performance
4. PAL signal & tuner 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 (Pedestal to white level)
: Y level
0.7Vp-p ±0.02Vp-p
PB, PR level
Adjustment Conditions
[Signal]
PAL
Sprit Field Colour Bar
RF signal UV
[Terminal]
TUNER
Adjustment process
Page3
Adjustment Conditions
[Signal]
PAL
Full Field Colour Bar
Composite or RF signal
[Terminal]
EXT1 SCART IN
TUNER
Adjustment process
Page3
LC32D44E/S/RU-BK/GY (1st Eddition)
Adjustment procedure
• Feed the PAL Sprit Field colour bar signal to TUNER.
Signal level: 55 dB µV +1dB, -1dB (75Ω LOAD)
Bring the cursor on [
[***OK***] appears when finished.
Adjustment procedure
• Feed the PAL full field colour bar signal (75% colour saturation) to
EXT1 SCART IN.
• Feed the RF signal (PAL colour bar) to TUNER.
• Make sure the PAL colour bar pattern has the sync level of 7:3 with
the picture level.
VIDEO IN SIGNAL]
100% white
Bring the cursor on [
[***OK***] appears when finished.
3 – 21
[E-12CH]
100% white
RF AGC ADJ] and press [OK]
[RF Signal]
100% white
PAL + TUNER ADJ] and press [OK]