Read Sharp LC-42XD1EA (serv.man3) Service Manual online
LC-42XD1EA/RUA
3 – 10
6. Special features
* ERROR STANDBY CAUSE (Page 1/13)
The total time when the unit enters the standby due to operational error and cause of error are recorded on EEPROM as much as possible.
The values can be used to locate the fault for repair.
* EEP CLEAR (Page10/13)
Clear of process adjustment EEP value.
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 PAL: 0.7Vp-p
± 0.02Vp-p (Pedestal to white level)
• 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
2. Entering the adjustment process mode
Enter the adjustment process mode according to Section 3.
3. RF AGC adjustment 1
1
Setting
䊶 Feed the PAL Split Field colour bar signal (E-12ch) to TUNER.
㵘 Signal level: 65dB V㩷± 1dB (75
LOAD)
Split Field Colour Bar
2
Auto adjustment
Adjustment process
Bring the cursor on [
RF AGC BG ADJ] and press [OK]
performance
[PAL+TUNERMAIN] menu
[
RF AGC BG ADJ
㵘OK] appears when finished.
Adjustment Conditions
Adjustment procedure
Adjustment point
㸡100% white
[E-12CH]
[Signal]
PAL
PAL
RF signal UV
[Terminal]
TUNER
TUNER
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