26
HCD-FX80
SECTION 6
ELECTRICAL ADJUSTMENT
HDMI SECTION
ADJUSTMENT OF VIDEO SYSTEM
[TEST DISC LIST]
Use the following test disc on this mode.
• HLX-504 (NTSC Test Disc 504): J-6090-088-A
Connection:
1. Composite Level Adjustment (MIB01 Board)
<Purpose>
This adjustment is made to satisfy the standard, and if not adjusted
correctly, the brightness will be too large or small.
Mode
Video level adjustment in test mode
Signal
Color bar 100% (HLX-504 Track1)
Test point
MONITOR OUT (VIDEO) connector
(75
Ω
terminated)
Instrument
Oscilloscope
Adjusting element
RV501
Specification
1.0 Vp-p
Procedure:
1. Terminate the MONITOR OUT (VIDEO) connector in 75
Ω
.
2. Connect an oscilloscope across 75
Ω
terminator.
3. Turn the power on.
4. Set the test disc (HLX-504) on the tray and press
H
button
to playback.
5. Confirm that oscilloscope waveform is clear and check
composite output level is correct or not.
6. If it is not correct, adjust the RV501 to attain 1.0 Vp-p.
MONITOR OUT (VIDEO)
COMPONENT VIDEO OUT (Y)
Set Back Panel
oscilloscope
75
Ω
1.0 Vp-p
2. Component Output Level Adjustment (MIB01 Board)
<Purpose>
This adjusts component output level. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
Mode
Video level adjustment in test mode
Signal
Color bar 100% (HLX-504 Track1)
Test point
COMPONENT VIDEO OUT (Y)
connector (75
Ω
terminated)
Instrument
Oscilloscope
Adjusting element
RV502
Specification
1.0 Vp-p
Procedure:
1. Terminate the COMPONENT VIDEO OUT (Y) connector in
75
Ω
.
2. Connect an oscilloscope across 75
Ω
terminator.
3. Turn the power on.
4. Set the test disc (HLX-504) on the tray and press
H
button
to playback.
5. Confirm that oscilloscope waveform is clear and check
component output level is correct or not.
6. If it is not correct, adjust the RV502 to attain 1.0 Vp-p.
Adjustment Location:
RV501
RV502
– MIB01 Board (SIDE A) –
1.0 Vp-p
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