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PV-20DF25 / PV-27DF25 / PV-27DF5 / PV-20DF25-K / PV-27DF25-K
7.2.
ELECTRICAL ADJUSTMENT
NOTE:
Following Adjustments have been preadjusted at factory and
are not required.
· Purity Adjustment
· Convergence Adjustment
7.2.1.
TEST EQUIPMENT
To do all of these electrical adjustments, the following
equipment is required.
1. Dual-Trace Oscilloscope
Voltage Range: 0.001 V to 50 V/Div.
Frequency Range: DC to 50 MHz
Probes: 10:1, 1:1
2. NTSC Video Pattern Generator
3. Isolation Transformer (Variable)
4. Degaussing Coil
5. White Pattern Generator
7.2.2.
HOW TO READ THE ADJUSTMENT
PROCEDURES
Fig. E1
7.2.3.
EVR (Electronic Variable Register)
ADJUSTMENT WITH THE REMOTE
CONTROL
This unit has electronic technology using I
The following control functions are adjusted by using "On
Screen Displays" and the remote control instead of adjusting
mechanical controls (VR).
7.2.4.
EVR ADJUSTMENT ITEM
The following Items need to be adjusted for EVR adjustment.
· SUB CONTRAST ADJUSTMENT
· FOCUS, SCREEN, CUT OFF, DRIVE ADJUSTMENT
· SUB COLOR/SUB TINT ADJUSTMENT
· DEFLECTION
ADJUSTMENT
· WHITE BALANCE ADJUSTMENT
· SUB BRIGHTNESS ADJUSTMENT
7.2.5.
HOW TO ENTER EVR
ADJUSTMENT MODE
Press and hold STOP, SKIP + and VOL - buttons on the unit
together over 5 seconds.
The adjustment overlay will appear to Enter EVR adjustment
mode.
7.2.5.1.
How to adjust:
1. Press UP/DOWN
select control function to be adjusted.
22
2
C Bus concept.
DISTORTION
CORRECTION
Fig. E2-1
key on the remote control to
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