4-21 (E)
MAV-555
A/D Manual Video Level Adjustment
n
Turn on the main power of the MAV-555 and measuring
equipment. Wait for at least 30 minutes before starting any
adjustments.
1.
Select “A/D Manual Video Level” of the ADjuster.
2.
Input the 100% color bar signal from signal generator.
3.
Change the set value of the level bar of the ADjuster
using
and
key of a personal computer or
with a mouse. Click “Set” and confirm the pedestal
level.
4.
Repeat step 3 until the specifications are satisfied.
Specifications :
A = 714
±
7 mV (100
±
1 IRE) : 525/60 mode
A = 700
±
7 mV :
625/50 mode
5.
Click “Write to EEPROM” of the ADjuster and save
the set value.
A/D AGC Video Level Adjustment
n
Turn on the main power of the MAV-555 and measuring
equipment. Wait for at least 30 minutes before starting any
adjustments.
1.
Select “A/D AGC Video Level” of the ADjuster.
2.
Input the 100% color bar signal from signal generator.
3.
Change the set value of the level bar of the ADjuster
using
and
key of a personal computer or
with a mouse. Click “Set” and confirm the pedestal
level.
4.
Repeat step 3 until the specifications are satisfied.
Specifications :
A = 714
±
7 mV (100
±
1 IRE) : 525/60 mode
A = 700
±
7 mV :
625/50 mode
5.
Click “Write to EEPROM” of the ADjuster and save
the set value.
After Adjustment
1.
Select “File”
_
“Disconnect” on the top menu of the
ADjuster.
2.
Exit the ADjuster.
3.
Return the setup menus (menu Nos. 782, 701, 702, 703
and 704) to the original setup before starting the
adjustment.
4.
Turn off the main power of the MAV-555.
4-6. AD-160 Board Adjustment
A
A
