Lcd System Adjustments; Lcd Level Adjustment (Pd-204 Board) - Sony CCD-TRV128 Service Manual
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Also See for CCD-TRV128:
- Guia de operacion (208 pages) ,
- Service manual (179 pages) ,
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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".
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.
Note 2: When replacing the LCD unit, be careful to prevent dam-
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.
Note 4: Open the LCD panel during the LCD system adjustment.
CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
1. LCD Level Adjustment (PD-204 board)
This adjustment does the following items automatically.
VCO Adjustment
Contrast Adjustment
Mode
Signal
Adjustment Page
Adjustment Address
Note 1: Check that the data of page: 0, address: 10 is "00".
Note 2: NTSC model: CCD-TRV128/TRV228/TRV328/TRV428
Adjusting method: (NTSC model)
Order Page Address Data
Adjusting method: (PAL model)
Order Page Address Data
10
Note 3: The adjustment data will be automatically input to page:
Note 4: If the data is other than "00", adjustment has errors.
Note 5: Refer to table 6-4-1. "Hexadecimal-decimal conversion
Note 6: If D
Page Address Data
6-23
VTR stop (PLAY/EDIT mode)
No signal
C
50, 51 (VCO Adjustment)
58 (Contrast Adjustment)
PAL model: CCD-TRV228E/TRV428E
1
0
01
01
2
3
01
5A
3
3
02
4
3
03
5
0
01
00
1
0
01
01
2
3
01
5A
3
3
02
4
3
03
5
C
50
6
7
8
9
C
51
D
51
0
01
00
C, address: 50, 51 and 58.
For the error contents, see the following table.
table".
' < 0, then D
= 00
51
51
03
01
Adjustment time out.
3
60
Contrast adjustment error
C6
62
VCO adjustment error
RadarW
RadarW
RadarW
RadarW
RadarW
Procedure
Press PAUSE button. (Note 3)
Check the data changes to
"00".
Check that the data is "00".
(Note 4)
Procedure
Press PAUSE button. (Note 3)
Check the data changes to
"00".
Check that the data is "00".
(Note 4)
Read the data and this data is
named D
.
50
Convert D
to decimal notation,
50
and obtain D
'. (Note 5)
50
Calculate D
' using following
51
equations. (decimal calculation)
D
' = D
' – 18
51
50
Convert D
' to a hexadecimal
51
number, and obtain D
.
51
(Note 5, 6)
Press PAUSE button.
Error contents
- Quick Links:
- Self-Diagnosis Function
- Flow Chart
Hide quick links:
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