Sony CCD-TRV118 / CCD-TRV218E / CCD-TRV318 / CCD-TRV418 / CCD-TRV418E (serv.man2) Service Manual ▷ View online
CCD-TRV118/TRV218E/TRV318/TRV418/TRV418E
6-31
3-1-5.
Alignment Tapes
The following table lists alignment tapes which are available.
Use the tape specified in the signal column for each adjustment. If the type of tape to be used for checking operations is not specified, use
whichever type.
Use the tape specified in the signal column for each adjustment. If the type of tape to be used for checking operations is not specified, use
whichever type.
Alignment tape
Tape type:
ME .................................. Particle type metal tape
MP ................................... Evaporated type metal tape
MP ................................... Evaporated type metal tape
Table 6-3-3
Fig. 6-3-3. shows the 75% color bar signals recorded on the alignment tape.
Note:
Measure using the VIDEO terminal (Terminated at 75
Ω).
Name
Tracking
(WR5-1NP(NTSC), WR5-1CP(PAL))
(WR5-1NP(NTSC), WR5-1CP(PAL))
Video frequency characteristics
(WR5-7NE(NTSC), WR5-7CE(PAL))
(WR5-7NE(NTSC), WR5-7CE(PAL))
Operation check
(WR5-5NSP(NTSC), WR5-5CSP(PAL))
(WR5-5NSP(NTSC), WR5-5CSP(PAL))
Operation check
(WR5-8NSE(NTSC), WR5-8CSE(PAL))
(WR5-8NSE(NTSC), WR5-8CSE(PAL))
Operation check
(WR5-4NL(NTSC), WR5-4CL(PAL))
(WR5-4NL(NTSC), WR5-4CL(PAL))
Operation check
(WR5-8NLE(NTSC), WR5-8CLE(PAL))
(WR5-8NLE(NTSC), WR5-8CLE(PAL))
BPF adjustment
(WR5-11NS(NTSC), WR5-11CS(PAL))
(WR5-11NS(NTSC), WR5-11CS(PAL))
Tape speed
SP
SP (NTSC)
LP (PAL)
LP (PAL)
SP
SP
LP
LP
SP
Usage
Tape path adjustment, Switching position
adjustment
adjustment
Frequency characteristics adjustment
Operation check
BPF adjustment
Recording mode
Standard 8
Hi8
Standard 8
Hi8
Standard 8
Hi8
Standard 8
Tape type
MP
ME
MP
ME
MP
ME
MP
For NTSC model
For PAL model
Color bar signal waveform
Color bar pattern
Color bar signal waveform
Fig. 6-3-3. Color bar signal of alignment tapes
1 V
0.714 V
0.286 V
White (75%)
White (100%)
Y
ello
w
Cy
an
Green
Magenta
Red
Blue
Burst signal
0.286 V
Q
I
Horizontal sync signal
(75%)
White
Y
ello
w
Cy
an
Green
Magenta
Red
Blue
Q
I
White
(100%)
Black
1 V
0.7 V
0.3 V
White (100%)
Ye
llo
w
Cy
an
Green
Magenta
Red
Blue
Burst signal
Horizontal sync signal
0.3 V
(100%)
Ye
llo
w
Cy
an
Green
Magenta
Red
Blue
White
Blac
k
Color bar pattern
CCD-TRV118/TRV218E/TRV318/TRV418/TRV418E
6-32
3-1-6.
Output Level and Impedance
S video output
4-pin mini DIN
Luminance signal:
Luminance signal:
1 Vp-p, 75
Ω, unbalanced
Chrominance signal:
CCD-TRV118/TRV318/TRV418:
0.286 Vp-p, 75
0.286 Vp-p, 75
Ω, unbalanced
CCD-TRV218E/TRV418E:
0.3 Vp-p, 75
0.3 Vp-p, 75
Ω, unbalanced
Audio/Video output
AV MINIJACK:
VIDEO: 1 Vp-p, 75
VIDEO: 1 Vp-p, 75
Ω, unbalanced, sync negative
AUDIO: 327 mV (at output impedance more than 47 k
Ω)
Output impedance with less than 2.2 k
Ω
3-1-7.
Recording Mode (Standard 8/Hi8) switching
The record mode (Standard 8/Hi8) of this unit switches as shown
in the following table. The playback mode (Standard 8/Hi8)
switches automatically according to the recording mode of the tape
played back.
in the following table. The playback mode (Standard 8/Hi8)
switches automatically according to the recording mode of the tape
played back.
Tape Used
Recording Mode
ME
Hi8
Hi8 MP
MP
Standard 8
CCD-TRV118/TRV218E/TRV318/TRV418/TRV418E
6-33
COVER
COVER
3-2.
SYSTEM CONTROL SYSTEM ADJUSTMENTS
1. Initialization of D, E, F, 7 Page Data
If the D, E, F, 7 page data is erased due to some reason, perform
“1-2. INITIALIZATION OF D, E, F, 7 PAGE DATA” of “6-1.
CAMERA SYSTEM ADJUSTMENTS”.
“1-2. INITIALIZATION OF D, E, F, 7 PAGE DATA” of “6-1.
CAMERA SYSTEM ADJUSTMENTS”.
3-3.
SERVO SYSTEM ADJUSTMENTS
1. CAP FG Offset Adjustment (VC-303 board)
RadarW
RadarW
RadarW
RadarW
RadarW
Set the CAP FG signal duty cycle to 50% to establish an appropri-
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur in the playback mode.
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur in the playback mode.
Mode
VTR playback (SP mode)
Signal
Arbitrary
Measurement Point
CAP FG (Pin 4 of CN712)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
59
Specified value
Duty = 50
± 1 %
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
6
01
81
Press PAUSE button.
3
6
02
Check the data changes to
“01”.
“01”.
4
6
01
00
Press PAUSE button.
5
Check that Duty of CAP FG
signal satisfies the specified
value. If not, repeat steps 2 to
5.
signal satisfies the specified
value. If not, repeat steps 2 to
5.
6
0
01
00
2. Switching Position Adjustment (VC-303 board)
If deviated in this case cause switching noise or jitter on the played
back screen.
back screen.
Mode
VTR playback
Signal
Alignment tape:
For tracking adjustment
(WR5-1NP(NTSC))
(WR5-1CP(PAL))
(WR5-1NP(NTSC))
(WR5-1CP(PAL))
Measurement Point
CH1: SWP (Pin 5 of CN712)
CH2: PB RF (Pin 9 of CN712)
CH2: PB RF (Pin 9 of CN712)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
5A, 5B
Specified value
t1 = 0
± 10 µsec
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
F
20
40
Press PAUSE button.
3
F
5A
Change the data and minimize
“t1”. (Coarse adjustment)
“t1”. (Coarse adjustment)
4
F
5A
Press PAUSE button.
5
F
5B
Change the data and adjust so
that the switching position (t1)
becomes specified value. (Fine
adjustment)
that the switching position (t1)
becomes specified value. (Fine
adjustment)
6
F
5B
Press PAUSE button.
7
F
20
00
Press PAUSE button.
8
0
01
00
Fig. 6-3-4
Fig. 6-3-5
CH1
CH2
Enlargement
t1=0
±
10
µ
sec
CH1
CH2
A
B
Duty = A/B
×
100 [%]
Center of movement
CCD-TRV118/TRV218E/TRV318/TRV418/TRV418E
6-34
COVER
COVER
2. AFC f
0
Adjustment (VC-303 board)
RadarW
RadarW
RadarW
RadarW
RadarW
Adjust the pull-in range of A/D converted clock generator during
playback.
playback.
Mode
VTR stop
Signal
No signal
Adjustment Page
F
Adjustment Address
5D
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
F
5D
50
Press PAUSE button.
3
2
01
4D
Press PAUSE button.
4
Wait for 0.5 second.
5
6
01
C5
Press PAUSE button. (Note)
6
6
02
Check the data changes to
“01”.
“01”.
7
2
01
00
Press PAUSE button.
8
6
01
00
Press PAUSE button.
9
0
01
00
Note:
The adjustment data will be automatically input to page: F,
address: 5D.
address: 5D.
3-4.
VIDEO SYSTEM ADJUSTMENTS
Video system adjustments must be performed in the following or-
der.
der.
Adjusting Procedure:
1. 28 MHz origin oscillation adjustment
2. AFC f
1. 28 MHz origin oscillation adjustment
2. AFC f
0
adjustment
3. S VIDEO OUT Y level adjustment
4. S VIDEO OUT chroma level adjustment
5. VIDEO OUT level check
6. REC Y current adjustment
7. REC AFM current adjustment
4. S VIDEO OUT chroma level adjustment
5. VIDEO OUT level check
6. REC Y current adjustment
7. REC AFM current adjustment
1. 28 MHz Origin Oscillation Adjustment
(VC-303 board)
Set the frequency of the clock for synchronization.
If deviated, the synchronization will be disrupted and the color
will become inconsistent.
If deviated, the synchronization will be disrupted and the color
will become inconsistent.
Mode
VTR stop
Signal
No signal
Measurement Point
C202 (Pin ia of IC151)
Measuring Instrument
Frequency counter
Adjustment Page
F
Adjustment Address
45
Specified value
f = 14318181
± 68 Hz (NTSC model)
f = 14187500
± 54 Hz (PAL model)
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
F
45
Change the data and set the
frequency (f) to the specified
value.
frequency (f) to the specified
value.
3
F
45
Press PAUSE button.
4
0
01
00
C202
1
54
55
108
109
162
163
216
IC151
Measurement
Point
Point
VC-303 BOARD
Fig. 6-3-6
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