Sony DCR-TRV255E / DCR-TRV260 / DCR-TRV265 / DCR-TRV265E (serv.man3) Service Manual ▷ View online
DCR-TRV255E/TRV260/TRV265/TRV265E
6-27
2. LCD V-COM Adjustment (PD-204 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.
the specified value.
If deviated, the LCD display will be move, producing flicker and
conspicuous vertical lines.
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
52
Specified Value
The brightness difference between
the section-A and section-B is
minimum
the section-A and section-B is
minimum
Note 1:
Perform “LCD Level Adjustment” before this adjustment.
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
52
Change the data so that
brightness of the section A
and section B is equal.
brightness of the section A
and section B is equal.
3
C
52
Subtract 8 from the data.
4
C
52
Press PAUSE button.
5
0
01
00
3. LCD White Balance Adjustment (PD-204 Board)
Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
If deviated, the LCD screen color cannot be reproduced.
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
56, 57
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. IC6001
lowing parts. If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC6001
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
56
6F
Press PAUSE button.
3
C
57
4B
Press PAUSE button.
4
Check that the LCD screen is
not colored. If not colored,
proceed to step 6.
not colored. If not colored,
proceed to step 6.
5
C
56
Change the data so that the
LCD screen is not colored.
LCD screen is not colored.
57
(Note 3)
6
0
01
00
Note 3:
To write in the non-volatile memory (EEPROM), press
the PAUSE button each time to set the data.
the PAUSE button each time to set the data.
A
A
A
A
B
B
B
B
Fig. 6-1-14
DCR-TRV255E/TRV260/TRV265/TRV265E
6-28
6-2. MECHANISM SECTION
ADJUSTMENTS
Mechanism Section adjustments, checks, and replacement of
mechanism parts, refer to the separate volume “8mm Video Me-
chanical Adjustment Manual IX M2000 Mechanism ”.
mechanism parts, refer to the separate volume “8mm Video Me-
chanical Adjustment Manual IX M2000 Mechanism ”.
Note 1:
Before perform the adjustments, check that the data of
page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
Note 2:
NTSC model: DCR-TRV260/TRV265
PAL model: DCR-TRV255E/TRV265E
PAL model: DCR-TRV255E/TRV265E
2-1.
ADJUSTMENT REMOTE COMMANDER
Connect the adjustment remote commander to CN1011 of VC-
344 board via I/F unit for LANC control (J-6082-521-A) and CPC
jig connector (J-6082-539-A). To operate the adjustment remote
commander, connect the AC power adapter (8.4Vdc) to the DC IN
jack of I/F unit for LANC control, or connect the L series Info-
LITHIUM battery to the battery terminal of I/F unit for LANC
control.
344 board via I/F unit for LANC control (J-6082-521-A) and CPC
jig connector (J-6082-539-A). To operate the adjustment remote
commander, connect the AC power adapter (8.4Vdc) to the DC IN
jack of I/F unit for LANC control, or connect the L series Info-
LITHIUM battery to the battery terminal of I/F unit for LANC
control.
2-2.
HOW TO ENTER RECORD MODE
WITHOUT CASSETTE
WITHOUT CASSETTE
1)
Connect the adjustment remote commander.
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, address: 01, and set data: 0C, and press the
4) Select page: 3, address: 01, and set data: 0C, and press the
PAUSE button of the adjustment remote commander.
(The mechanism enters the record mode automatically.)
(The mechanism enters the record mode automatically.)
Note:
The function buttons becomes inoperable.
5) To quit the record mode, select page: 3, address: 01, set data:
00, and press the PAUSE button of the adjustment remote com-
mander. (Whenever you want to quit the record mode, be sure
to quit following this procedure.)
mander. (Whenever you want to quit the record mode, be sure
to quit following this procedure.)
2-3.
HOW TO ENTER PLAYBACK MODE
WITHOUT CASSETTE
WITHOUT CASSETTE
1) Connect the adjustment remote commander.
2) Turn the HOLD switch of the adjustment remote commander
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, address: 01, and set data: 0B, and press the
4) Select page: 3, address: 01, and set data: 0B, and press the
PAUSE button of the adjustment remote commander.
(The mechanism enters the playback mode automatically.)
(The mechanism enters the playback mode automatically.)
Note:
The function buttons becomes inoperable.
5) To quit the playback mode, select page: 3, address: 01, set
data: 00, and press the PAUSE button of the adjustment re-
mote commander. (Whenever you want to quit the playback
mode, be sure to quit following this procedure.)
mote commander. (Whenever you want to quit the playback
mode, be sure to quit following this procedure.)
Fig. 6-2-1
TG6
TG2
Capstan shaft
TG7
Pinch roller
T reel
S reel
TG1
TG3
TG4
TG5
Drum
DCR-TRV255E/TRV260/TRV265/TRV265E
6-29
2-4.
TAPE PATH ADJUSTMENT
2-4-1.
Preparations for Adjustment
1) Clean the tape path face (tape guide, drum, capstan shaft, pinch
roller).
2) Connect the adjustment remote commander.
3) Turn on the HOLD switch of the adjustment remote com-
3) Turn on the HOLD switch of the adjustment remote com-
mander.
4) Select page: 3, address: 33, and set data: 08.
5) Connect the oscilloscope to I/F unit for LANC control.
5) Connect the oscilloscope to I/F unit for LANC control.
Channel 1: PB RF (MON)
Channel 2: SWP
Channel 2: SWP
Note:
Connect a 75
Ω resistor between the test point PB
RF (MON) and GND.
75
75
Ω resistor (Parts code: 1-247-804-11)
6) Playback the SW/OL standard tape. (WR5-2D)
7) Check that the oscilloscope RF waveform is flat at the entrance
7) Check that the oscilloscope RF waveform is flat at the entrance
and exit.
If not flat, perform the following section 2-4-2. until it is flat.
If not flat, perform the following section 2-4-2. until it is flat.
8) Perform “Processing after operations”, after completing ad-
justment.
[Processing after operations]
1) Connect the adjustment remote commander, and turn on the
HOLD switch.
2) Select page: 3, address: 33, and set data: 00.
3) Remove the power supply from the unit.
3) Remove the power supply from the unit.
Fig. 6-2-2
CH1
Normal
CH2
CH1
Entrance side faulty
CH2
CH1
Exit side faulty
CH2
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 CN1011.
Table 6-2-1.
DCR-TRV255E/TRV260/TRV265/TRV265E
6-30
2-4-2.
Tape Path Adjustment
1) Playback the SW/OL standard tape. (WR5-2D)
2) Turn the tape guide No.3 and No.6 alternately until the wave-
2) Turn the tape guide No.3 and No.6 alternately until the wave-
form becomes flat. (Fig. 6-2-5)
Note:
Zenith adjustment screws for the TG3 and TG6 do not
need to be adjusted.
need to be adjusted.
[Entrance side adjustment]
3) Turn the No.3 guide slowly in the clockwise direction until
the waveform amplitude at the entrance side begins to become
small. (Fig. 6-2-6 (A))
Confirm the rotation angle (A) of the No.3 guide.
small. (Fig. 6-2-6 (A))
Confirm the rotation angle (A) of the No.3 guide.
4) Turn the No.3 guide slowly in the counterclockwise direction
until the waveform becomes flat. (Fig. 6-2-5)
5) Turn the No.3 guide slowly in the counterclockwise direction
until the waveform amplitude at the entrance side begins to
become small. (Fig. 6-2-6 (B))
Confirm the rotation angle (B) of the No.3 guide.
become small. (Fig. 6-2-6 (B))
Confirm the rotation angle (B) of the No.3 guide.
6) Turn the No.3 guide slowly in the clockwise direction and set
up in the angle (C) in the middle of the rotation angle (A) and
the rotation angle (B). (Fig. 6-2-4)
the rotation angle (B). (Fig. 6-2-4)
[Exit side adjustment]
7) Turn the No.6 guide slowly in the clockwise direction until
the waveform amplitude at the exit side begins to become small.
(Fig. 6-2-7 (A))
Confirm the rotation angle (A) of the No.6 guide.
(Fig. 6-2-7 (A))
Confirm the rotation angle (A) of the No.6 guide.
8) Turn the No.6 guide slowly in the counterclockwise direction
until the waveform becomes flat. (Fig. 6-2-5)
9) Turn the No.6 guide slowly in the counterclockwise direction
until the waveform amplitude at the exit side begins to be-
come small. (Fig. 6-2-7 (B))
Confirm the rotation angle (B) of the No.6 guide.
come small. (Fig. 6-2-7 (B))
Confirm the rotation angle (B) of the No.6 guide.
10) Turn the No.3 guide slowly in the clockwise direction and set
up in the angle (C) in the middle of the rotation angle (A) and
the rotation angle (B). (Fig. 6-2-4)
the rotation angle (B). (Fig. 6-2-4)
Entrance side amplitude
Entrance side amplitude
Exit side amplitude
Exit side amplitude
Fig. 6-2-5
Fig. 6-2-6 (A)
Fig. 6-2-6 (B)
Fig. 6-2-7 (A)
Fig. 6-2-7 (B)
Fig. 6-2-4
Fig. 6-2-3
Guide zenith adjustment screw
No.6 guide
(TG6)
(TG6)
No.3 guide
(TG3)
(TG3)
C
No.3 guide
or
No.6 guide
A
B
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