Sony CCD-TR3200E Service Manual ▷ View online
5-41
7. REC Y Current Adjustment (VC-195 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
53 to 5A
Specified Value
A = 185
±
5mV
Preparations:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, after memorizing the data, set the
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, after memorizing the data, set the
bit value of bit1 to “1”. (Refer to “3. Bit value discrimination”
of “3-1-8. Service mode”).
of “3-1-8. Service mode”).
3) Select page: D, address: 15, after memorizing the data , set the
bit value of bit7 to “0”.
4) Set to recording mode. (Use the wireless remote commander
of 8mm VCR, or connect Pin
6 of CN935 of DD-105 board
and GND with 4.7k
Ω
resistor for a second.)
4.7k
Ω
resistor: 1-249-425-11
Adjusting method:
1) Insert a tape, set to recording mode. (Refer to “Preparations”.)
2) Select page: 0, address: 01, and set data: 01.
3) Select page: F, address: 5C, after note down the data , set data:
1) Insert a tape, set to recording mode. (Refer to “Preparations”.)
2) Select page: 0, address: 01, and set data: 01.
3) Select page: F, address: 5C, after note down the data , set data:
FF, and press the PAUSE button of the adjusting remote
commander.
commander.
4) Select page: F, address: 65, after note down the data , set data:
00, and press the PAUSE button of the adjusting remote
commander.
commander.
5) Select page: 3, address: 01, set data: 41, and press the PAUSE
button of the adjusting remote commander.
6) Select page: F, address: 54, change the data and set the Y signal
level (A) to the specified value.
7) Press the PAUSE button of the adjusting remote commander.
8) Select page: F, address: 54, and read the data (D
8) Select page: F, address: 54, and read the data (D
54
).
9) Calculate the adjustment data (hexadecimal) from the following
equations (hexadecimal calculation), and input each adjustment
address. (Refer to Table 5-1-2. Hexadecimal-Decimal
conversion Table.)
address. (Refer to Table 5-1-2. Hexadecimal-Decimal
conversion Table.)
Address: 53
D
53
= D
54
Address: 55
D
55
= D
54
Address: 56
D
56
= D
54
Note:
After setting each data, be sure to press the PAUSE button
of the adjusting remote commander.
of the adjusting remote commander.
10) Write the following data in page: F, address: 57 to 5A.
Address
Data
57
A1
58
95
59
A1
5A
95
Note:
After setting each data, be sure to press the PAUSE button
of the adjusting remote commander.
of the adjusting remote commander.
11) Select page: F, address: 5C, set the data noted down at step 3),
press the PAUSE button of the adjusting remote commander.
12) Select page: F, address: 65, set the data noted down at step 4),
press the PAUSE button of the adjusting remote commander.
13) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
14) Select page: 0, address: 01, and set data: 00.
Processing after completed adjustment:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, and set the data memorized at step
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, and set the data memorized at step
2) of “Preparations”.
3) Press the PAUSE button of the adjusting remote commander.
4) Select page: D, address: 15, and set the data memorized at step
4) Select page: D, address: 15, and set the data memorized at step
3) of “Preparations”.
5) Press the PAUSE button of the adjusting remote commander.
6) Select page: 0, address: 01, and set data: 00.
6) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-12.
5-42
8. REC L Level Adjustment (VC-195 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
(20MHz BW LIMIT: OFF)
(20MHz BW LIMIT: OFF)
Adjustment Page
F
Adjustment Address
5B to 64
Specified Value
A = 11.0
±
0.7mV
Note 1:
Do not insert a plug into the AUDIO (R) terminal.
Connection:
1) Remove C085 (0.01
1) Remove C085 (0.01
µ
F, Pin
!§ of IC202).
Note:
After completing “REC L Level Adjustment” and “REC C
Current Adjustment”, replace C085 with new parts (1-162-
970-11 CERAMIC CHIP 0.01
Current Adjustment”, replace C085 with new parts (1-162-
970-11 CERAMIC CHIP 0.01
µ
F 10% 25V).
Preparations:
1) Insert Hi8 ME tape.
2) Select page: 0, address: 01, and set data: 01.
3) Select page: D, address: 14, after memorizing the data, set the
1) Insert Hi8 ME tape.
2) Select page: 0, address: 01, and set data: 01.
3) Select page: D, address: 14, after memorizing the data, set the
bit value of bit1 to “1”. (Refer to “3. Bit value discrimination”
of “3-1-8. Service mode”).
of “3-1-8. Service mode”).
4) Select page: D, address: 15, after memorizing the data , set the
bit value of bit7 to “0”.
5) Set to recording mode. (Use the wireless remote commander
of 8mm VCR, or connect Pin
6 of CN935 of DD-105 board
and GND with 4.7k
Ω
resistor for a second.)
4.7k
Ω
resistor: 1-249-425-11
Adjusting method:
1) Insert Hi8 ME tape, set to recording mode. (Refer to
“Preparations”.)
2) Select page: 0, address: 01, and set data: 01.
3) Select page: F, address: 5B, set data: FF, and press the PAUSE
3) Select page: F, address: 5B, set data: FF, and press the PAUSE
button of the adjusting remote commander.
4) Select page: F, address: 65, set data: 00, and press the PAUSE
button of the adjusting remote commander.
5) Select page: F, address: 5C, change the data and set the REC
AFM signal level (A) to the specified value.
6) Press the PAUSE button of the adjusting remote commander.
7) Select page: F, address: 5C, read the data (D
7) Select page: F, address: 5C, read the data (D
5C
).
8) Calculate the adjustment data (hexadecimal) from the following
equations (hexadecimal calculation), and input each adjustment
address. (Refer to Table 5-1-2. Hexadecimal-Decimal
conversion Table.)
address. (Refer to Table 5-1-2. Hexadecimal-Decimal
conversion Table.)
Address: 5B
D
5B
= D
5C
Address: 5D
D
5D
= D
5C
Address: 5E
D
5E
= D
5C
Address: 5F
D
5F
= D
5C
+ 12
Address: 60
D
60
= D
5C
+ 12
Address: 61
D
61
= D
5C
+ 12
Address: 62
D
62
= D
5C
+ 12
Note:
After setting each data, be sure to press the PAUSE button
of the adjusting remote commander.
of the adjusting remote commander.
9) Write the following data in page: F, address: 63 to 64.
Note:
After setting each data, be sure to press the PAUSE button
of the adjusting remote commander.
of the adjusting remote commander.
10) Select page: 0, address: 01, and set data: 00.
11) Perform “REC C Current Adjustment”.
11) Perform “REC C Current Adjustment”.
Processing after completed adjustment:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, and set the data memorized at step
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, and set the data memorized at step
3) of “Preparations”.
3) Press the PAUSE button of the adjusting remote commander.
4) Select page: D, address: 15, and set the data memorized at step
4) Select page: D, address: 15, and set the data memorized at step
4) of “Preparations”.
5) Press the PAUSE button of the adjusting remote commander.
6) Select page: 0, address: 01, and set data: 00.
6) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-13.
Address
Data
63
7A
64
7A
5-43
9. REC C Current Adjustment (VC-195 board)
Set the recording current levels of the REC Chroma signal. If it is
too low, chroma signal noise in played back picture will increased.
If too high, Y signal noises will increase and white modulation noises
will be produced.
too low, chroma signal noise in played back picture will increased.
If too high, Y signal noises will increase and white modulation noises
will be produced.
Mode
VTR recording (SP mode)
Signal
No signal
Measurement Point
Pin
!º of CN910 (REC RF)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
65
Specified Value
A = 35.7
±
1.3mV
Connection:
1) Remove C085 (0.01
1) Remove C085 (0.01
µ
F, Pin
!§ of IC202).
Note:
After completing “REC L Level Adjustment” and “REC C
Current Adjustment”, replace C085 with new parts (1-162-
970-11 CERAMIC CHIP 0.01
970-11 CERAMIC CHIP 0.01
µ
F 10% 25V).
2) Connect Pin
1 of IC001 and GND with a 0.01F capacitor.
0.01
µ
F capacitor: 1-101-004-00
Preparations:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, after memorizing the data, set the
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, after memorizing the data, set the
bit value of bit1 to “1”. (Refer to “3. Bit value discrimination” of
“3-1-8. Service mode”).
“3-1-8. Service mode”).
3) Select page: D, address: 15, after memorizing the data , set the
bit value of bit7 to “0”.
4) Set to recording mode. (Use the wireless remote commander
of 8mm VCR, or connect Pin
6 of CN935 of DD-105 board
and GND with 4.7k
Ω
resistor for a second.)
4.7k
Ω
resistor: 1-249-425-11
Adjusting method:
1) Insert a tape, set to recording mode. (Refer to “Preparations”.)
2) Select page: 0, address: 01, and set data: 01.
3) Select page: 3, address: 01, set data: 41, and press the PAUSE
1) Insert a tape, set to recording mode. (Refer to “Preparations”.)
2) Select page: 0, address: 01, and set data: 01.
3) Select page: 3, address: 01, set data: 41, and press the PAUSE
button of the adjusting remote commander.
4) Select page: 2, address: 61, and set data: 30.
5) Select page: F, address: 65, change the data and set the REC
5) Select page: F, address: 65, change the data and set the REC
chroma signal level (A) to the specified value.
6) Press the PAUSE button of the adjusting remote commander.
7) Select page: 2, address: 61, and set data: 10.
8) Select page: 3, address: 01, set data: 00, and press the PAUSE
7) Select page: 2, address: 61, and set data: 10.
8) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
9) Select page: 0, address: 01, and set data: 00.
Processing after completed adjustment:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, and set the data memorized at step
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 14, and set the data memorized at step
2) of “Preparations”.
3) Press the PAUSE button of the adjusting remote commander.
4) Select page: D, address: 15, and set the data memorized at step
4) Select page: D, address: 15, and set the data memorized at step
3) of “Preparations”.
5) Press the PAUSE button of the adjusting remote commander.
6) Select page: 0, address: 01, and set data: 00.
6) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-14.
A
1.35
µ
sec
Center of the luminance line width
5-44
3-5.
STEREO AUDIO SYSTEM ADJUSTMENT
•
The items to be adjusted for the R channel will be indicated
within the [ ], in regard to the adjusting items to be adjusted for
both L and R channels.
within the [ ], in regard to the adjusting items to be adjusted for
both L and R channels.
•
Set the Hi-Fi sound switch in the menu display to “STEREO”
position unless specified otherwise.
position unless specified otherwise.
Note:
1) When inputting the audio signal, input the same signal to both
the L and R channels, unless specified otherwise.
2) Be sure to insert the plug (Shorting plug or dummy plug, etc)
into the AUDIO terminal (Right). If the plug is not inserted, the
monaural mode well be set, and correct adjustments can not be
carried out.
[Monaural mode]
During recording ............... REC AFM RF 1.7MHz carriear will
monaural mode well be set, and correct adjustments can not be
carried out.
[Monaural mode]
During recording ............... REC AFM RF 1.7MHz carriear will
not be output.
During playback ................ The L+R signal will be output from
the AUDIO terminal (Left).
[Connecting the measuring instruments for the audio]
Connect the audio system measuring instruments in addition to the
video system measuring instruments as shown in Fig. 5-3-15, and
perform adjustments at the power switch [PLAYER] position.
video system measuring instruments as shown in Fig. 5-3-15, and
perform adjustments at the power switch [PLAYER] position.
[Adjustment Procedure]
1) 1.5 MHz deviation adjustment
2) 1.7 MHz deviation adjustment
3) BPF adjustment
2) 1.7 MHz deviation adjustment
3) BPF adjustment
Fig. 5-3-15.
TP33(GND)
TP32(R OUT 1)
TP32(R OUT 1)
B
TP31(L OUT 1)
A
TP30(R OUT 2)
TP29(L OUT 2)
TP29(L OUT 2)
CN1
J3
J1(R)
J2(L)
S2
PAL NT
INV SIN
S3
S1
ST
BIL
CH1
CH2
TP27
(GND)
TP28 (DC)
+
-
(+7Vdc to +9Vdc)
(J-6082-312-A)
AFM DEV jig
TP2(R OUT)
B
TP1(GND)
TP3(L OUT)
A
A
: 1.5MHz deviation adjustment.
B
: 1.7MHz deviation adjustment.
When connecting AFM DEV jig.
CN1
TP25
TP24
TP26
B
A
Stabilized power supply
Oscilloscope
Red
White
White
Red
L
R
To Audio terminal
VC-195 board
IC301
@ª
PIN
(REC AFM)
0.01
µ
F
(1-101-004-00)
CN910
!¡
PIN
(RF SWP)
CN910
8
PIN
(GND)
Use the CPC-7 jig
(J-6082-382-A)
(J-6082-382-A)
Pattern generator
In Recording
In Playback
Audio
oscillator
oscillator
Video output
(75
Ω
)
Attenuator
600
Ω
600
Ω
(270
Ω
(1-249-410-11) + 330
Ω
(1-249-411-11))
VIDEO
Main unit
L
R
AUDIO
Audio level meter or
distortion meter
distortion meter
47k
Ω
47k
Ω
: 1-249-437-11
VIDEO
Main unit
L
R
AUDIO
TV monitor
47k
Ω
: 1-249-437-11
CN2
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