Sony Dcrtrv890e Manual

5-28
6. V-COM Adjustment (PD-101 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.
Mode Camera
Subject Arbitrary
Measurement Point Check on LCD display
Measuring Instrument
Adjustment Page D
Adjustment Address 85
Specified Value The brightness difference between the
section A and section B is minimum.
Note1 :Perform ÒBright AdjustmentÓ and ÒContrast AdjustmentÓ before
this...

5-29
5-2. MECHANISM SECTION
ADJUSTMENT
On the mechanism section adjustment
For details of mechanism section adjustments, checks, and
replacement of mechanism parts, refer to the separate volume ÒDV
MECHANICAL ADJUSTMENT MANUAL 
  C Mechanism  Ó.
2-1. HOW TO ENTER RECORD MODE WITHOUT
CASSETTE
1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander
to the ON position.
3) Close the cassette compartment without the cassette.
4) Select page: 3,...

5-30
5-3. VIDEO SECTION ADJUSTMENTS
NTSC model : DCR-TRV900
PAL model : DCR-TRV890E/TRV900E
3-1. PREPARATIONS BEFORE ADJUSTMENTS
Use the following measuring instruments for video section
adjustments.
3-1-1. Equipment Required
1) TV monitor
2) Oscilloscope (dual-phenomenon, band above 30 MHz with
delay mode) (Unless specified otherwise, use a 10 : 1 probe.)
3) Frequency counter
4) Pattern generator with video output terminal.
5) Digital voltmeter
6) Audio generator
7) Audio level meter
8) Audio distortion...

5-31
3-1-2. Precautions on Adjusting
1) The adjustments of this unit are performed in the VTR mode
or camera mode.
To set to the VTR mode, set the power switch to ÒVTRÓ (or
ÒPLAYERÓ) or set the ÒForced VTR Power ON modeÓ using
the adjustment remote commander (Note 1).
To set to the Camera mode, set the power switch to ÒCAMERAÓ
or set the ÒForced Camera Power ON modeÓ using the
adjustment remote commander (Note 2).
After completing adjustments, be sure to exit the ÒForced VTR
Power ON ModeÓ or ÒForced...

5-32
3-1-3. Adjusting Connectors
Some of the adjusting points of the video section are concentrated
at VI-151 board CN2904. Connect the measuring instruments via
the CPC-8 jig (J-6082-388-A). The following table lists the pin
numbers and signal names of CN2904.
Pin No.
1
3
5
7
9
11
13
15
17
19
Signal Name
LACN SIG
EVF BLÐ
EVF VCO
PD VG
H START
PANEL COM
TCK
TDO
SWP
GND
Pin No.
2
4
6
8
10
12
14
16
18
20
Signal Name
EVF BL+
EVF VG
GND
PD VCO
XHD/PSIG
TMS
TDI
GND
RF IN/LANC JACK IN
RF MON
Table 5-3-1....

5-33
3-1-6. Alignment Tapes
Use the alignment tapes shown in the following table.
Use tapes specified in the signal column of each adjustment.
Fig. 5-3-3 shows the 75% color bar signals recorded on the alignment
tape for Audio Operation Check.
Note:Measure with video terminal (Terminated at 75 W)
Use
Tape path adjustment
Switching position adjustment
Audio system adjustment
Operation check
BIST check
Name
Tracking standard (XH2-1)
SW/OL standard (XH2-3)
Audio operation check
(XH5-3 (NTSC), XH5-3P (PAL))...

5-34
Address
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
Initial value
NTSC
EE
00
EE
00
E0
E0
2A
2A
33
33
25
3E
3E
DC
99
88
E3
A1
8A
2D
52
04
00
00
00
00
00
00
00
00
00
00
00
00
PA L
EE
00
EE
00
E0
E0
2A
2A
33
33
25
3E
3E
DC
99
88
E3
A1
8A
2D
52
04
00
00
00
00
00
00
00
00
00
00
00
00
Remark
Fixed data-1
(Initialized data)
Switching position adj.
Fixed data-1
Cap FG duty adj.
T reel FG...

5-35
Address
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
5E
5F
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
Initial value
NTSC
20
03
PA L
20
03
Remark
Fixed data-1
PLL f0 final adj.
Fixed data-1
(Initialized data)
Fixed data-2
Fixed data-1
(Initialized data)
Fixed data-2
Fixed data-1
(Initialized data)
APC adj.
Fixed data-1
(Initialized data)
Fixed data-2
Fixed data-1
(Initialized data)
Address
7D
7E
7F
80
81
82
83
84
85
86
87
88...

5-36
Address
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
CA
CB
CC
CD
CE
CF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
E0 to FF
Initial value
NTSCPA LRemark
Fixed data-2
Fixed data-1
Fixed data-2
Fixed data-1
(Initialized data)
Fixed data-2
Fixed data-1
(Initialized data)
Table. 5-3-2
4. Initializing the D Page DataNote:If the D page data is initialized, the following adjustments must be
performed again.
1) Modification of D page data
2) Video system adjustments
3) Color electronic...

5-37
Address
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
Initial value
NTSC
9D
97
A9
AD
B5
PA L
90
97
A9
AD
B5
Remark
Fixed data-2
Fixed data-1
(Initialized data)
Fixed data-2
Fixed data-1
Fixed data-2
Fixed data-1
Fixed data-2
(Modified data, copy the data built in
the same model.)
Fixed data-1
Battery end adj.
Fixed data-2
Fixed data-1
Fixed data-2
Fixed data-1
Fixed data-2...