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Model
DCR-TRV345E DCR-TRV350 DCR-TRV351 DCR-TRV355E DCR-TRV356E (serv.man4)
Pages
73
Size
1.02 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / SECTION 6 ADJUSTMENTS
File
dcr-trv345e-dcr-trv350-dcr-trv351-dcr-trv355e-dcr-.pdf
Date

Sony DCR-TRV345E / DCR-TRV350 / DCR-TRV351 / DCR-TRV355E / DCR-TRV356E (serv.man4) Service Manual ▷ View online

6-38
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
4.
Black Limit Adjustment (PD-181 board)
Set the video signal level for driving the LCD to the specified
value.
Mode
CAMERA
Subject
Not required
Measurement Point
Pin 4 of CN5502 (PSIG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
4B
Specified Value
A = 8.30 
± 0.08 Vp-p
Note 1:
This adjustment is the tracking adjustment in relation to
“RGB AMP Adjustment”.
Note 2:
Check that the data of page: 0, address: 10 is “00”.
Note 3:
NTSC model: DCR-TRV350/TRV351
                PAL model: DCR-TRV345E/TRV355E/TRV356E
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
3
C4
61
Set the following data
3
3
C5
58: NTSC model
50: PAL model
4
C
4B
Change the data and set the
voltage (A) to the specified
value. (The data should be
“00” to “0F”)
5
C
4B
Press PAUSE button.
6
3
C4
00
7
3
C5
00
8
0
01
00
9
Check that the specified
value of “RGB AMP
Adjustment” is satisfied. If
not, perform “RGB AMP
Adjustment”.
5.
Contrast Adjustment (PD-181 board)
Set the video signal level for driving the LCD to the specified
value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
Mode
CAMERA
Subject
Not required
Measurement Point
Pin 3 of CN5502 (VG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
4F
Specified Value
A = 2.60 
± 0.05 Vp-p (NTSC model)
A = 2.50 
± 0.05 Vp-p (PAL model)
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
NTSC model: DCR-TRV350/TRV351
                PAL model: DCR-TRV345E/TRV355E/TRV356E
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
4F
Change the data and set the
voltage (A) to the specified
value. (The data should be
“00” to “7F”)
3
C
4F
Press PAUSE button.
4
0
01
00
3 steps peak
Pedestal
A
2H
A: Between the pedestal and 3 steps peak
Fig. 6-1-20
A: Amplitude of PSIG signal
Fig. 6-1-19
A
V
6-39
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
7.
V-COM Adjustment (PD-181 board)
Set the DC bias of the common electrode drive signal of LCD to
the specified value.
If deviated, the LCD display will be move, producing flicker and
conspicuous vertical lines.
Mode
CAMERA
Subject
Not required
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
49
Note 1:
Perform “PSIG GRAY Adjustment”, “RGB AMP Ad-
justment”, “Black Limit Adjustment”, “Contrast Adjust-
ment” and “Center Voltage Adjustment” before this ad-
justment.
Note 2:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
49
Change the data so that
brightness of the section A
and section B is equal.
(The data should be “00” to
“3F”)
3
C
49
Subtract 2 from the data.
4
C
49
Press PAUSE button.
5
0
01
00
6.
Center Voltage Adjustment (PD-181 board)
Set the center level of video signal for driving the LCD to the
specified value.
Mode
CAMERA
Subject
Not required
Measurement Point
Pin 3 of CN5502 (VG)
Measuring Instrument
Digital voltmeter
Adjustment Page
C
Adjustment Address
50
Specified Value
A = 7.00 
± 0.03 Vdc
Note:
 Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
50
Change the data and set the
DC voltage (A) to the
specified value. (The data
should be “00” to “7F”)
3
C
50
Press PAUSE button.
4
0
01
00
A
A
A
A
B
B
B
B
Fig. 6-1-21
6-40
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
8.
White Balance Adjustment (PD-181 board)
Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
Mode
CAMERA
Subject
Not required
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
4D, 4E
Specified Value
LCD screen must not be colored
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
Check the white balance only when replacing the fol-
lowing parts. If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC5501
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
4D
84/80 Press PAUSE button. (Note 3)
3
C
4E
6F/6A Press PAUSE button. (Note 3)
4
Check that the LCD screen is
not colored. If not colored,
proceed to step 6.
5
C
Change the data so that the
LCD screen is not colored.
(Note 4)
6
0
01
00
Note 3:
NTSC model/PAL model
Note 4:
To write in the non-volatile memory (EEPROM), press
the PAUSE button each time to set the data.
4D
4E
6-41
COVER
COVER
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
2-1-2. TAPE PATH ADJUSTMENT
1. Preparations for Adjustment
1) Clean the tape path face (tape guide, capstan shaft, pinch roller).
2) Connect the adjustment remote commander to the LANC jack.
3) Turn  on the HOLD switch of the adjustment remote com-
mander.
4) Select page: 0, address: 01, and set data: 01.
5) Select page: 7, address: 62, and set data: 02.
6) Select page: 0, address: 10, and set data: 01.
7) Select page: 8, address: 12, set data: 08, and press the PAUSE
button of the adjustment remote commander.
8) Select page: 0, address: 10, and set data: 00.
(Be sure to perform “Processing after operation” after com-
pleting adjustments)
9) Connect the oscilloscope to I/F unit for LANC control.
Channel 1: IR VIDEO (Pin 2 of CN1011)
Channel 2 (Trigger) : SWP (Pin 5 of CN1011)
10) Playback Hi8/standard 8 mm alignment tape for tracking.
(WR5-1NP(NTSC))
(WR5-1CP(PAL))
11) Check that the oscilloscope RF waveform is normal at the en-
trance and exit.
If not normal, adjust according to the separate volume “8mm
Video Mechanical Adjustment Manual IX 
[M2000 Mecha-
nism]
”.
12) Perform “Processing after operations”, after completing ad-
justment.
Test point of I/F unit for LANC control
Pin No.
Signal Name
Pin No.
Signal Name
BL
15
EVF VCO
14
EVF VG
BL 4.75
9
PB RF (MON)
3
BPF MONI
6, 8 ,10
GND
TMS
7
REC RF (RF IN)
TDI
TDO
5
SWP
TCK
4
CAP FG
2
IR VIDEO
Note:
 Pin No. are those of CN1101.
Table 6-2-1
[Procedure after operations]
1) Connect the adjustment remote commander, and turn on the
HOLD switch.
2) Select page: 0, address: 01, and set data: 01.
3) Select page: 7, address: 62, and set data: 00.
4) Select page: 0, address: 10, and set data: 01.
5) Select page: 8, address: 12, set data: 00, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 10, and set data: 00.
7) Select page: 0, address: 01, and set data: 00.
8) Remove the power supply from the unit.
6-2. MECHANISM SECTION
ADJUSTMENTS
Mechanism Section adjustments, checks, and replacement of
mechanism parts, refer to the separate volume “8 mm Video Mecha-
nism Adjustment Manual IX 
[M2000 Mechanism]
 ”.
Note 1:
NTSC model: DCR-TRV350/TRV351
PAL model: DCR-TRV345E/TRV355E/TRV356E
2-1.
Hi8/STANDARD8 MODE
2-1-1. HOW TO ENTER PLAYBACK MODE WITHOUT
CASSETTE
1) Refer to “Section 2. DISASSEMBLY” and supply the power
with the cabinet assembly removed. (So that the mechanical
deck can be operated.)
2) Connect the adjustment remote commander to the LANC jack.
3) Turn  on the HOLD switch of the adjustment remote com-
mander.
4) Close the cassette compartment without loading a cassette and
complete loading.
5) Select page: 0, address: 01, and set data: 01.
6) Select page: 0, address: 10, and set data: 01.
7) Select page: 8, address: 12, set data: 01, and press the PAUSE
button of the adjustment remote commander.
8) Select page: 0, address: 10, and set data: 00.
9) Select page: A, address: 10, set data: 10, and press the PAUSE
button of the adjustment remote commander.
10) Select page: 7, address: 62, and set data: 02.
11) Press the PLAY button of the unit.
Note 2:
Be sure to carry out “Processing after checking Opera-
tions” after checking the operations.
Set the data of page: D, address: 10 to “02”, if the sensor
ineffective mode, forced VTR power supply ON mode is
to be used together.
 [Procedure after checking operations]
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 7, address: 62, and set data: 00.
3) Select page: 0, address: 10, and set data: 01.
4) Select page: 8, address: 12, set data: 00, and press the PAUSE
button of the adjustment remote commander.
5) Select page: 0, address: 10, and set data: 00.
6) Select page: A, address: 10, set data: 00, and press the PAUSE
button of the adjustment remote commander.
7) Select page: 0, address: 01, and set data: 00.
8) Disconnect the power supply of the unit.
Fig. 6-2-1
CH1
Entrance 
side
Exit side
Check this section
(Normal waveform)
CH2
(Trigger)
V
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