Sony CCD-TRV63 / CCD-TRV66 / CCD-TRV66PK Service Manual ▷ View online
5-25
2. VCO Adjustment (PD-105 board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
be blurred.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 2 of CN5501 (VCO VOLTAGE)
Measuring Instrument
Oscilloscope (DC range)
Adjustment Page
E
Adjustment Address
D8
Specified Value
A = 1.70
+0.03
V
–0.05
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 00.
4)
Select page: E, address: D8, change the data and set the VCO
VOLTAGE (A) to the specified value.
VOLTAGE (A) to the specified value.
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 0, address: 01, and set data: 00.
3. D range Adjustment (PD-105 board)
Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5501 (VG)
External trigger : Pin 4 of CN5501
(PANEL COM)
External trigger : Pin 4 of CN5501
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
D6
Specified Value
A = 3.06 ± 0.05V
Note :
Press the DISPLAY button and erase the screen indictors on the
LCD screen.
LCD screen.
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 00.
4)
Select page: E, address: D6, change the data and set the voltage
(A) between the reversed waveform pedestal and non-reversed
waveform pedestal to the specified value.
(A) between the reversed waveform pedestal and non-reversed
waveform pedestal to the specified value.
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 0, address: 01, and set data: 00.
A
2H
Pedestal
Pedestal
H
A
GND level
(0Vdc)
(0Vdc)
Fig. 5-1-17.
Fig. 5-1-18.
5-26
4. Bright Adjustment (PD-105 board)
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
value. If deviated, the screen image will be blackish or saturated
(whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5501 (VG)
External trigger : Pin 4 of CN5501
(PANEL COM)
External trigger : Pin 4 of CN5501
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
D1
Specified Value
A = 1.34 ± 0.05V
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 40.
4)
Select page: E, address: D1, change the data and set the voltage
(A) between the pedestal and white to the specified value. (The
data of address: D1 should be “41” to “BF”.)
(A) between the pedestal and white to the specified value. (The
data of address: D1 should be “41” to “BF”.)
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 6, address: 7D, and set data: 00.
8)
Select page: 0, address: 01, and set data: 00.
5. Contrast Adjustment (PD-105 board)
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
value. If deviated, the screen image will be blackish or saturated
(whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5501 (VG)
External trigger : Pin 4 of CN5501
(PANEL COM)
External trigger : Pin 4 of CN5501
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
D5
Specified Value
A = 2.60 ± 0.07V
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 00.
4)
Select page: E, address: D5, change the data and set the voltage
(A) between the pedestal (0 IRE) and 100 IRE to the specified
value.
(A) between the pedestal (0 IRE) and 100 IRE to the specified
value.
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 0, address: 01, and set data: 00.
A
2H
100 IRE
0 IRE
Pedestal
A
2H
White
Fig. 5-1-19.
Fig. 5-1-20.
5-27
6. V-COM Level Adjustment (PD-105 board)
Set the common electrode drive signal level of LCD to the specified
value.
value.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 4 of CN5501 (PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
D7
Specified Value
A = 4.50 ± 0.05V
Note :
Perform “Bright Adjustment” and “Contrast Adjustment” before this
adjustment.
adjustment.
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 00.
4)
Select page: E, address: D7, change the data and set the PANEL
COM signal level (A) to the specified value.
COM signal level (A) to the specified value.
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 0, address: 01, and set data: 00.
7. Color Adjustment (PD-105 board)
Set the color saturation to the standard value. If deviated, the color
will be to dark or light.
will be to dark or light.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5501 (VG)
External trigger : Pin 4 of CN5501
(PANEL COM)
External trigger : Pin 4 of CN5501
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
D2
Specified Value
A = –0.03 ± 0.05V
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 57, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 20.
4)
Select page: E, address: D2, change the data and set the green
level (A) to the specified value in respect to white.
level (A) to the specified value in respect to white.
5)
Add 9 to the data of page: E, address: D2, and press the PAUSE
button.
button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 6, address: 7D, and set data: 00.
8)
Select page: 0, address: 01, and set data: 00.
A
2H
A
2H
Green
White (Reference level)
Fig. 5-1-21.
Fig. 5-1-22.
5-28
8. V-COM Adjustment (PD-105 board)
Set the DC bias of the common electrode drive signal of LCD to the
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.
Mode
VTR stop
Signal
No signal
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
E
Adjustment Address
D9
Specified Value
The brightness difference between the
section A and section B is minimum.
section A and section B is minimum.
Note :
Perform “Bright Adjustment” and “Contrast Adjustment” before this
adjustment.
adjustment.
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 51, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 87.
4)
Select page: E, address: D9, change the data so that the
brightness of the section A and that of the section B is equal.
brightness of the section A and that of the section B is equal.
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
7)
Select page: 6, address: 7D, and set data: 00.
8)
Select page: 0, address: 01, and set data: 00.
9. White Balance Adjustment (PD-105 board)
Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
If deviated, the LCD screen color cannot be reproduced.
Mode
VTR stop
Signal
No signal
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
E
Adjustment Address
D3, D4
Specified Value
The LCD screen should not be colored.
Note 1:
Check the white balance only when replacing the following parts.
If necessary, adjust them.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC5502
2. Light induction plate
3. IC5502
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 51, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 7D, and set data: 02.
4)
Select page: E, address: D3 and D4, and set the data to the
initial value.
initial value.
Note 2:
To write in the non-volatile memory (EEPROM), press the
PAUSE button of the adjustment remote commander each time
to set the data.
PAUSE button of the adjustment remote commander each time
to set the data.
5)
Check that the LCD screen is not colored. If colored, change
the data of page: E, address: D3 and D4 so that the LCD screen
is not colored.
the data of page: E, address: D3 and D4 so that the LCD screen
is not colored.
Note 2:
To write in the non-volatile memory (EEPROM), press the
PAUSE button of the adjustment remote commander each time
to set the data.
PAUSE button of the adjustment remote commander each time
to set the data.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
button.
7)
Select page: 6, address: 7D, and set data: 00.
8)
Select page: 0, address: 01, and set data: 00.
Address
D3
D4
Data
98
7B
A
A
A
A
B
B
B
B
Fig. 5-1-23.
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