Sony CCD-TRV63 / CCD-TRV66 / CCD-TRV66PK Service Manual ▷ View online
5-37
3. Filter f
0
Adjustment (VC-214 board)
Adjust the f
0
frequency of the IC151 built-in filter.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN910 (IR VIDEO)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
6D
Specified Value
Minimum residual chroma signal
components (A= Bellow 12mV)
components (A= Bellow 12mV)
Switch setting:
LASER LINK ........................................ ON (Red LED is lit)
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 4F, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: F, address: 6D, change the data and minimize the
residual chroma signal components (A).
residual chroma signal components (A).
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
6)
Select page: 0, address: 01, and set data: 00.
4. Y OUT Level Adjustment (VC-214 board)
Set the Y signal output level. (Adjust the D/A converter out put
level of IC151.)
level of IC151.)
Mode
VTR stop
Signal
No signal
Measurement Point
Y signal terminal of S VIDEO
terminal (75
terminal (75
Ω
terminated )
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
69
Specified Value
A=286 ± 5mV
Note :
Insert the plug into the S video terminal.
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 41, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 61, and set data: 30.
4)
Select page: F, address: 69, change the data and set the SYNC
level (A) to the specified value.
level (A) to the specified value.
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 6, address: 61, and set data: 10.
7)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
8)
Select page: 0, address: 01, and set data: 00.
H
A
Fig. 5-3-7.
Fig. 5-3-8.
H
A
5-38
5. C OUT Level Adjustment (VC-214 board)
Set the chroma signal output level. (Adjust the D/A converter out
put level of IC151.)
put level of IC151.)
Mode
VTR stop
Signal
No signal
Measurement Point
Chroma signal terminal of S VIDEO
terminal (75
terminal (75
Ω
terminated )
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
6B
Specified Value
A=286 ± 5mV
Note :
Insert the plug into the S video terminal.
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 41, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: 6, address: 61, and set data: 30.
4)
Select page: F, address: 6B, change the data and set the burst
level (A) to the specified value.
level (A) to the specified value.
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 6, address: 61, and set data: 10.
7)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
8)
Select page: 0, address: 01, and set data: 00.
6. RP Filter f
0
Adjustment (VC-214 board)
Adjust the LPF of the playback RF amplifier (IC001).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 9 of CN910 (RF AGC OUT)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
6E
Specified Value
A= Minimum
Connection:
1)
1)
Input a 14.2MHz, 400mVp-p CW signal to Pin 7 of CN910
(RF AGC IN).
(RF AGC IN).
Transistor : General NPN transistor (2SC403, etc)
47
47
Ω
resistor :
1-249-401-11
1 k
Ω
resistor :
1-249-417-11
15 k
Ω
resistor :
1-249-431-11
0.01
µ
F capacitor : 1-101-004-00
Fig. 5-3-10.
Adjusting method:
1)
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 35, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
3)
Select page: F, address: 6E, change the data and minimize the
14.2 MHz signal level (A).
14.2 MHz signal level (A).
4)
Press the PAUSE button of the adjustment remote commander.
5)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
6)
Select page: 0, address: 01, and set data: 00.
H
A
Signal
generator
generator
14.2 MHz 400 mVp-p
0.01
µ
F
47
Ω
15 k
Ω
1 k
Ω
RFU DC OUT jack
on PJ-92 board
(4.75 V)
on PJ-92 board
(4.75 V)
Pin
7
of CN910
(RF AGC IN)
Pin
8
of CN910
(REG GND)
0.01
µ
F
A
14.2MHz
Fig. 5-3-9.
Fig. 5-3-11.
5-39
7. REC Y Current Adjustment (VC-214 board)
Adjust the Y FM signal recording current.
Mode
VTR recording (SP mode)
Signal
No signal
Measurement Point
Pin !º of CN910 (REC RF)
Measuring Instrument
Oscilloscope
(20 MHz BW LIMIT: OFF)
(20 MHz BW LIMIT: OFF)
Adjustment Page
F
Adjustment Address
73 to 7A
Specified Value
A=160 ± 5mV
Adjusting method:
1)
1)
Insert a tape, and set to recording mode.
2)
Select page: 0, address: 01, and set data: 01.
3)
Select page: F, address: 7C, after note down the data , set data:
00, and press the PAUSE button of the adjustment remote
commander.
00, and press the PAUSE button of the adjustment remote
commander.
4)
Select page: F, address: 85, after note down the data , set data:
00, and press the PAUSE button of the adjustment remote
commander.
00, and press the PAUSE button of the adjustment remote
commander.
5)
Select page: 2, address: 01, set data: 41, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
6)
Select page: F, address: 74 , change the data and set the Y signal
level (A) to the specified value.
level (A) to the specified value.
7)
Press the PAUSE button of the adjustment remote commander.
8)
Select page: F, address: 74 , and read the data (D
74
).
9)
Calculate the adjustment data from the following equations,
and input each adjustment address.
and input each adjustment address.
Address: 73
D
73
= D
74
Address: 75
D
75
= D
74
Address: 76
D
76
= D
74
Note:
After setting each data, be sure to press the PAUSE button of
the adjustment remote commander.
the adjustment remote commander.
10) Write the following data in page: F, address: 77 to 7A .
Note:
After setting each data, be sure to press the PAUSE button of
the adjustment remote commander.
the adjustment remote commander.
11) Select page: F, address: 7C, set the data noted down at step 3),
press the PAUSE button of the adjustment remote commander.
12) Select page: F, address: 85, set the data noted down at step 4),
press the PAUSE button of the adjustment remote commander.
13) Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
14) Select page: 0, address: 01, and set data: 00.
Address
77
78
79
7A
Data
6D
7C
6D
7C
A
0.18
µ
sec
Fig. 5-3-12.
5-40
Address
83
84
Data
A4
A4
8. REC L Level Adjustment (VC-214 board)
Set the recording levels of the REC AFM signal and REC ATF signal.
If the level is too low, the audio S/N will deteriorated, tracking will
not be stable, or SP/LP will not be discriminated properly. If too
high, color beets will be produced on the self-recording / playback
image.
If the level is too low, the audio S/N will deteriorated, tracking will
not be stable, or SP/LP will not be discriminated properly. If too
high, color beets will be produced on the self-recording / playback
image.
Mode
VTR recording (SP mode)
Signal
No signal
Measurement Point
Pin !º of CN910 (REC RF)
Measuring Instrument
Oscilloscope
(20 MHz BW LIMIT: OFF)
(20 MHz BW LIMIT: OFF)
Adjustment Page
F
Adjustment Address
7B to 84
Specified Value
A=10.1 ± 0.6mV
Note 1:
Do not insert any plug into the AUDIO (R) terminal.
Connection:
1)
1)
Remove C085 (0.01
µ
F, Pin !§ of IC202).
Note 2:
After completing “REC L Level Adjustment” and “REC C
Current Adjustment”, replace C085 with new parts (1-182-
970-11 CERAMIC CHIP 0.01
Current Adjustment”, replace C085 with new parts (1-182-
970-11 CERAMIC CHIP 0.01
µ
F 10% 25V).
Adjusting method:
1)
1)
Insert Hi8 ME tape, and set to recording mode.
2)
Select page: 0, address: 01, and set data: 01.
3)
Select page: F, address: 7B, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
4)
Select page: F, address: 85, set data: 00, and press the PAUSE
button of the adjustment remote commander.
button of the adjustment remote commander.
5)
Select page: F, address: 7C, change the data and set the REC
AFM signal level (A) to the specified value.
AFM signal level (A) to the specified value.
6)
Press the PAUSE button of the adjustment remote commander.
7)
Select page: F, address: 7C, read the data (D
7C
).
8)
Convert D
7C
to decimal notation, and obtain D
7C
'. (Refer to Table
5-4-1. “Hexadecimal-decimal conversion table” of “5-4. Service
Mode”.)
Mode”.)
9)
Calculate the adjustment data (decimal) from the following
equations (decimal calculation), convert it to a hexadecimal
number, and input each adjustment address.
equations (decimal calculation), convert it to a hexadecimal
number, and input each adjustment address.
Address: 7B
D
7B
' = D
7C
'
Address: 7D
D
7D
' = D
7C
'
Address: 7E
D
7E
' = D
7C
'
Address: 7F
D
7F
' = D
7C
' –56
Address: 80
D
80
' = D
7C
' –56
Address: 81
D
81
' = D
7C
' –56
Address: 82
D
82
' = D
7C
' –56
Note 3:
After setting each data, be sure to press the PAUSE button of
the adjustment remote commander.
10) Write the following data in page: F, address: 83 to 84.
Note 3:
After setting each data, be sure to press the PAUSE button of
the adjustment remote commander.
the adjustment remote commander.
11) Select page: 0, address: 01, and set data: 00.
12) Perform “REC C Current Adjustment”.
12) Perform “REC C Current Adjustment”.
A
0.67
µ
sec
Center of the luminace line width
Center of the luminace line width
Fig. 5-3-13.
VC-214 BOARD
IC202
1
44
132
89
176
133
45
88
IC001
12
1
25 36
13
48
24
37
C085
Click on the first or last page to see other CCD-TRV63 / CCD-TRV66 / CCD-TRV66PK service manuals if exist.