DOWNLOAD Sony GV-D300 Service Manual ↓ Size: 27.72 MB | Pages: 127 in PDF or view online for FREE

Model
GV-D300
Pages
127
Size
27.72 MB
Type
PDF
Document
Service Manual
Brand
Device
VCR
File
gv-d300.pdf
Date

Sony GV-D300 Service Manual ▷ View online

5-17
3-5-3. Base Band Block Adjustments
Note:
In some adjustments, the color bar signal generated by DCR-
VX1000(NTSC) or DCR-VX1000E(PAL) is used for the video input
signal.
[How to generate the color bar signal]
1)
Connect the adjustment remote commander to DCR-
VX1000(NTSC) or DCR-VX1000E(PAL).
2)
Set the power switch to CAMERA.
3)
Select page: 5, address: 02, and set data: 09.
By carrying out the above procedure, DCR-VX1000(NTSC)
or DCR-VX1000E(PAL) generates the color bar signal. After
completing adjustments, set data: 00 to the address.
1. NPS PLL Adjustment (CB-61 Board)
Set the NPS PLL free-run frequency.
Mode
VTR stop
Signal
Color bar signal generated by DCR-
VX1000(NTSC) or DCR-
VX1000E(PAL) (DV jack input)
Measurement Point
Pin 
!¶ of CN9932 (NPS PLL)
Measuring Instrument
Frequency counter
Adjustment Element
CT1200
Specified Value
f = 14318180 ± 100Hz (NTSC)
f = 17734480 ± 100Hz  (PAL)
Adjusting method:
1)
Set the frequency (f) to the specified value using CT1200.
2. NPS Y Level Adjustment (CB-61 Board)
Set the IC1103 PB Y input signal level.
Mode
VTR stop
Signal
Color bar signal generated by DCR-
VX1000(NTSC) or DCR-
VX1000E(PAL) (DV jack input)
Measurement Point
Pin 
!• of CN9932 (NPS Y)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
59
Specified Value
A = 125 ± 3mV (NTSC)
A = 140 ± 3mV (PAL)
Connection: Connect Pin 
!• of CN9932 and Pin !ª (GND) of
CN9932 with a 470 
 resistor (Parts code: 1-249-413-11)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: D, address: 59, change the data and set the sync
signal level (A) to the specified value.
3)
Press the PAUSE button of the adjustment remote commander.
4)
Select page: 0, address: 01, and set data: 00.
5)
Perform “Video Output Y Level Adjustment”.
Fig. 5-3-8
H
A
5-18
3. VIDEO Output Y Level Adjustment (CB-61 Board)
Set the Y signal level of the Video output signal.
Mode
VTR stop
Signal
No signal
Measurement Point
VIDEO jack (75 
Ω 
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
96
Specified Value
A = 286 ± 6mV (NTSC)
A = 300 ± 6mV (PAL)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: D, address: 15, after memorizing the data, set the
bit value of bit2 to “0”. (Refer to “4-3, 3. Bit value
discrimination” of “5-4. Service Mode”).
3)
Select page: D, address: 96, change the data and set the sync
signal level (A) to the specified value.
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: D, address: 15, and set the data memorized at
step 2).
6)
Press the PAUSE button of the adjustment remote commander.
7)
Select page: 0, address: 01, and set data: 00.
8)
Perform “VIDEO Output Chroma Level Adjustment”.
Fig. 5-3-9
4. S VIDEO Output Y Level Adjustment (CB-61 Board)
Set the Y signal level of the S video output signal.
Mode
VTR stop
Signal
No signal
Measurement Point
Y signal terminal of S VIDEO jack
(75 
Ω 
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
95
Specified Value
A = 286 ± 6mV (NTSC)
A = 300 ± 6mV (PAL)
Note:
 Insert a plug in the S VIDEO jack.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: D, address: 15, after memorizing the data, set the
bit value of bit2 to “0”. (Refer to “4-3, 3. Bit value
discrimination” of “5-4. Service Mode”).
3)
Select page: D, address: 95, change the data and set the sync
signal level (A) to the specified value.
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: D, address: 15, and set the data memorized at
step 2).
6)
Press the PAUSE button of the adjustment remote commander.
7)
Select page: 0, address: 01, and set data: 00.
Fig. 5-3-10
A
H
A
H
5-19
5. AGC Adjustment (CB-61 Board)
Set the IC9004 AGC gain.
Mode
VTR stop
Signal
Color bar (VIDEO jack input)
Measurement Point
Y signal terminal of S VIDEO jack
(75 
Ω 
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
9A
Specified Value
A = 1.00 ± 0.02V
Note:
Before perform this adjustment, check that the specified value of “S
VIDEO Output Level Adjustment” is satisfied.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 13, and set data: FE.
3)
Select page: D, address: 9A, change the data and set the Y
signal level (A) to the specified value.
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: 2, address: 13, and set data: 00.
6)
Select page: 0, address: 01, and set data: 00.
For NTSC model
For PAL model
Fig. 5-3-11
H
A
White (100%)
A
White (100%)
H
6. NPS B-Y Level Adjustment (CB-61 Board)
Set the IC1101 CB OUT level.
Mode
VTR stop
Signal
Color bar signal generated by DCR-
VX1000(NTSC) or DCR-
VX1000E(PAL) (DV jack input)
(Note)
Measurement Point
VIDEO jack (75 
 terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
99
Specified Value
A = 450 ± 10mV (NTSC)
A = 460 ± 10mV (PAL)
Note:
How to generate the color bar signal.
1) Connect the adjustment remote commander to DCR-
VX1000(NTSC) or DCR-VX1000E(PAL).
2) Set the power switch to CAMERA.
3) Select page: 5, address: 02, and set data: 09.
By carrying out the above procedure, DCR-VX1000(NTSC) or
DCR-VX1000E(PAL) generates the color bar signal. After
completing adjustments, set data: 00 to the address.
Adjusting method:
1)
Check that RV1200 is the mechanical center.
2)
Select page: 0, address: 01, and set data: 01.
3)
Select page: D, address: 99, change the data and set the blue
level (A) to the specified value.
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: 0, address: 01, and set data: 00.
6)
Perform “VIDEO Output Burst Level Adjustment”.
Fig. 5-3-12
A
H
Blue
5-20
8. VIDEO Output Burst Level Adjustment (CB-61 Board)
Set the composite output burst signal level.
Mode
VTR stop
Signal
Color bar signal generated by DCR-
VX1000(NTSC) or DCR-
VX1000E(PAL) (DV jack input)
Measurement Point
VIDEO jack (75 
Ω 
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
A6
Specified Value
A = 286 ± 6mV (NTSC)
A = 300 ± 6mV (PAL)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: D, address: A6, change the data and set the burst
level (A) to the specified value.
3)
Press the PAUSE button of the adjustment remote commander.
4)
Select page: 0, address: 01, and set data: 00.
Fig. 5-3-14
A
H
9. NPS R-Y Level Adjustment for NTSC model
    (CB-61 Board)
Adjust the IC1101 CR OUT level, and set the chroma phase.
Mode
VTR stop
Signal
Color bar signal generated by DCR-
VX1000(NTSC) (DV jack input)
Measurement Point
VIDEO jack
Measuring Instrument
Vectorscope
Adjustment Page
D
Adjustment Address
97
Specified Value
All color luminance points should
settle within each specified frame( ).
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Adjust the GAIN and PHASE of the vectorscope, and set the
burst luminance point to the burst position (75% position).
3)
Select page: D, address: 97, change the data and settle each
color luminance point in each specified frame ( ).
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: 0, address: 01, and set data: 00.
7. NPS R-Y Level Adjustment for PAL model
    (CB-61 Board)
Adjust the IC1101 CR out level.
Mode
VTR stop
Signal
Color bar signal generated by DCR-
VX1000E(PAL) (DV jack input)
Measurement Point
VIDEO jack (75 
Ω 
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
97
Specified Value
A = 640 ± 10mV
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: D, address: 97, change the data and set the red
level (A) to the specified value.
3)
Press the PAUSE button of the adjustment remote commander.
4)
Select page: 0, address: 01, and set data: 00.
Fig. 5-3-13
Red
A
H
Page of 127
Display

Click on the first or last page to see other GV-D300 service manuals if exist.