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CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
6-23
1-4.
LCD SYSTEM ADJUSTMENTS
Before perform the LCD system adjustments, check that the data
of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
Note 1:
The back light (fluorescent tube) is driven by a high volt-
age AC power supply. Therefore, do not touch the back
light holder to avoid electrical shock.
age AC power supply. Therefore, do not touch the back
light holder to avoid electrical shock.
Note 2:
When replacing the LCD unit, be careful to prevent dam-
ages caused by static electricity.
ages caused by static electricity.
Note 3:
Set the LCD BRIGHT (Menu setting) to the center.
Set the LCD B.L. (Menu setting) to the BRIGHT.
Set the LCD COLOR (Menu setting) to the center.
Set the LCD B.L. (Menu setting) to the BRIGHT.
Set the LCD COLOR (Menu setting) to the center.
Note 4:
Open the LCD panel during the LCD system adjustment.
1. LCD Level Adjustment (PD-204 board)
RadarW
RadarW
RadarW
RadarW
RadarW
This adjustment does the following items automatically.
VCO Adjustment
Contrast Adjustment
VCO Adjustment
Contrast Adjustment
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Adjustment Page
C
Adjustment Address
50, 51 (VCO Adjustment)
58 (Contrast Adjustment)
58 (Contrast Adjustment)
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
NTSC model: CCD-TRV128/TRV228/TRV328/TRV428
PAL model: CCD-TRV228E/TRV428E
PAL model: CCD-TRV228E/TRV428E
Adjusting method: (NTSC model)
Order Page Address Data
Procedure
1
0
01
01
2
3
01
5A
Press PAUSE button. (Note 3)
3
3
02
Check the data changes to
“00”.
“00”.
4
3
03
Check that the data is “00”.
(Note 4)
(Note 4)
5
0
01
00
Adjusting method: (PAL model)
Order Page Address Data
Procedure
1
0
01
01
2
3
01
5A
Press PAUSE button. (Note 3)
3
3
02
Check the data changes to
“00”.
“00”.
4
3
03
Check that the data is “00”.
(Note 4)
(Note 4)
5
C
50
Read the data and this data is
named D
named D
50
.
6
Convert D
50
to decimal notation,
and obtain D
50
’. (Note 5)
7
Calculate D
51
’ using following
equations. (decimal calculation)
D
D
51
’ = D
50
’ – 18
8
Convert D
51
’ to a hexadecimal
number, and obtain D
51
.
(Note 5, 6)
9
C
51
D
51
Press PAUSE button.
10
0
01
00
Note 3:
The adjustment data will be automatically input to page:
C, address: 50, 51 and 58.
C, address: 50, 51 and 58.
Note 4:
If the data is other than “00”, adjustment has errors.
For the error contents, see the following table.
For the error contents, see the following table.
Note 5:
Refer to table 6-4-1. “Hexadecimal-decimal conversion
table”.
table”.
Note 6:
If D
51
’ < 0, then D
51
= 00
Page Address Data
Error contents
3
03
01
Adjustment time out.
C6
60
Contrast adjustment error
62
VCO adjustment error
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