Video Signal Adjustment Procedure - Sharp LC-32RD2 Service Manual

LC-32RD2E/S/RU, LC-37RD2E/S/RU

[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
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. Tuner adjustment
Adjustment point
1 Setting
2 Auto adjustment
performance
: 0.7Vp-p ±0.02Vp-p (Pedestal to white 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
RF signal
Adjustment process
Page3
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 [
[ RF AGC ADJ OK] appears when finished.
Adjustment procedure
• 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.
Bring the cursor on [
[ TUNER ADJ OK] appears when finished.
3 – 19
[E-12CH]
100% white
RF AGC ADJ] and press [OK]
[RF Signal]
100% white
TUNER ADJ] and press [OK]