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Model
CCD-TRV128 CCD-TRV228 CCD-TRV228E CCD-TRV328 CCD-TRV428 CCD-TRV428E (serv.man2)
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50
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Service Manual
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Device
Movie / SECTION 6 ADJUSTMENTS
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ccd-trv128-ccd-trv228-ccd-trv228e-ccd-trv328-ccd-t.pdf
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Sony CCD-TRV128 / CCD-TRV228 / CCD-TRV228E / CCD-TRV328 / CCD-TRV428 / CCD-TRV428E (serv.man2) Service Manual ▷ View online

CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
6-23
1-4.
LCD SYSTEM ADJUSTMENTS
Before perform the LCD system adjustments, check that the data
of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
Note 1:
The back light (fluorescent tube) is driven by a high volt-
age AC power supply. Therefore, do not touch the back
light holder to avoid electrical shock.
Note 2:
When replacing the LCD unit, be careful to prevent dam-
ages caused by static electricity.
Note 3:
Set the LCD BRIGHT (Menu setting) to the center.
Set the LCD B.L. (Menu setting) to the BRIGHT.
Set the LCD COLOR (Menu setting) to the center.
Note 4:
Open the LCD panel during the LCD system adjustment.
1. LCD Level Adjustment (PD-204 board)
RadarW
RadarW
RadarW
RadarW
RadarW
This adjustment does the following items automatically.
   VCO Adjustment
   Contrast Adjustment
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Adjustment Page
C
Adjustment Address
50, 51 (VCO Adjustment)
58 (Contrast Adjustment)
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
NTSC model: CCD-TRV128/TRV228/TRV328/TRV428
PAL model: CCD-TRV228E/TRV428E
Adjusting method: (NTSC model)
Order Page Address Data
Procedure
1
0
01
01
2
3
01
5A
Press PAUSE button. (Note 3)
3
3
02
Check the data changes to
“00”.
4
3
03
Check that the data is “00”.
(Note 4)
5
0
01
00
Adjusting method: (PAL model)
Order Page Address Data
Procedure
1
0
01
01
2
3
01
5A
Press PAUSE button. (Note 3)
3
3
02
Check the data changes to
“00”.
4
3
03
Check that the data is “00”.
(Note 4)
5
C
50
Read the data and this data is
named D
50
.
6
Convert D
50
 to decimal notation,
and obtain D
50
’. (Note 5)
7
Calculate D
51
’ using following
equations. (decimal calculation)
D
51
’ = D
50
’ – 18
8
Convert D
51
’ to a hexadecimal
number, and obtain D
51
.
(Note 5, 6)
9
C
51
D
51
Press PAUSE button.
10
0
01
00
Note 3:
The adjustment data will be automatically input to page:
C, address: 50, 51 and 58.
Note 4:
If the data is other than “00”, adjustment has errors.
For the error contents, see the following table.
Note 5:
Refer to table 6-4-1. “Hexadecimal-decimal conversion
table”.
Note 6:
If D
51
’ < 0, then D
51
 = 00
Page Address Data
Error contents
3
03
01
Adjustment time out.
C6
60
Contrast adjustment error
62
VCO adjustment error
CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
6-24
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.
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
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.
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.
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
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
56
87
Press PAUSE button.
3
C
57
68
Press PAUSE button.
4
Check that the LCD screen is
not colored. If not colored,
proceed to step 6.
5
C
56
Change the data so that the
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.
A
A
A
A
B
B
B
B
Fig. 6-1-13
CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
6-25
6-2. MECHANISM SECTION ADJUSTMENTS
Mechanism Section adjustments, checks, and replacement of
mechanism parts, refer to the separate volume “8mm Video Mecha-
nism Adjustment Manual IX
M2000 Mechanism
”.
Note:
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”.
2-1.
ADJUSTMENT REMOTE COMMANDER
Connect the adjustment remote commander to CN007 of VC-341
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 com-
mander, 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.
OPERATING 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.
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: C, address: 14, set data: 01, and press the PAUSE
button of the adjustment remote commander.
7) Select page: D, address: 10, set data: 02, and press the PAUSE
button of the adjustment remote commander.
8) Select page: A, address: 10, set data: 10, and press the PAUSE
button of the adjustment remote commander.
9) Select page: 7, address: 10, set data: 02, and press the PAUSE
button of the adjustment remote commander.
10) Disconnect the power supply of the unit.
By carrying out the above procedure, the unit can be operated
without loading a cassette.
Be sure to carry out “Processing after Operations” after check-
ing the operations.
Set the data of page: A, address: 10 to the following if the
sensor ineffective mode, forced VTR power supply On mode
or forced camera power supply ON mode are to be used to-
gether.
Forced VTR power ON mode ....................................... 12
Forced camera power ON mode ................................... 11
[Procedure after checking operations]
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, address: 14, set data: 00, and press the PAUSE
button of the adjustment remote commander.
3) Select page: D, address: 10, set data: 00, and press the PAUSE
button of the adjustment remote commander.
4) Select page: D, address: 10, set data: 00, and press the PAUSE
button of the adjustment remote commander.
5) Select page: 7, address: 10, set data: E2, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 01, and set data: 00.
7) Disconnect the power supply of the unit.
2-3.
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.
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: C, address: 14, set data: 08, and press the PAUSE
button of the adjustment remote commander.
(Be sure to perform “Processing after operation” after com-
pleting adjustments.)
6) Connect the oscilloscope to I/F unit for LANC control.
Channel 1: PB RF (Pin 9 of CN007)
Channel 2 (Trigger): SWP (Pin 5 of CN007)
7) Playback the alignment tape for tracking. (WR5-1NP (NTSC),
WR5-1CP (PAL))
8) 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 Mechanism
”.
9) 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 CN007.
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: C, address: 14, set data: 00, and press the PAUSE
button of the adjustment remote commander.
4) Select page: 0, address: 01, and set data: 00.
5) Remove the power supply from the unit.
Fig. 6-2-1.
CH1
Entrance 
side
Exit side
Check this section
(Normal waveform)
CH2
(Trigger)
V
CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
6-26
6-3. VIDEO SECTION ADJUSTMENTS
3-1.
PREPARATIONS BEFORE ADJUSTMENTS
Use the following measuring instruments for video section adjust-
ments.
Note:
NTSC model: CCD-TRV128/TRV228/TRV328/TRV428
PAL model: CCD-TRV228E/TRV428E
3-1-1. Equipment to Required
1) TV monitor
2) Oscilloscope (dual-phenomenon, band width above 30 MHz
with delay mode) (Unless specified otherwise, use a 10 : 1
probe)
3) Frequency counter
4) Digital voltmeter
5) Audio level meter
6) Audio distortion meter
7) Regulated power supply
8) NTSC alignment tapes
• For tracking adjustment (WR5-1NP)
Parts code: 8-967-995-02
• For video frequency characteristics adjustment (WR5-7NE)
Parts code: 8-967-995-13
• For checking Standard 8 mode operations
For LP (WR5-4NL)
Parts code: 8-967-995-51
For SP (WR5-5NSP)
Parts code: 8-967-995-42
Note:
The following alignment tapes can also be used.
WR5-4NSP (8-967-995-41)
• For checking Hi8 mode operations
For LP (WR5-8NLE)
Parts code: 8-967-995-52
For SP (WR5-8NSE)
Parts code: 8-967-995-43
• For BPF adjustment (WR5-11NS)
Parts code: 8-967-995-71
9) PAL alignment tapes
• For tracking adjustment (WR5-1CP)
Parts code: 8-967-995-07
• For video frequency characteristics adjustment (WR5-7CE)
Parts code: 8-967-995-18
• For checking Standard 8 mode operations
For LP (WR5-4CL)
Parts code: 8-967-995-56
For SP (WR5-5CSP)
Parts code: 8-967-995-47
Note:
The following alignment tapes can also be used.
1) WR5-3CL (8-967-995-36)
2) WR5-4CSP (8-967-995-46)
• For checking Hi8 mode operations
For LP (WR5-8CLE)
Parts code: 8-967-995-57
For SP (WR5-8CSE)
Parts code: 8-967-995-48
• For BPF adjustment (WR5-11CS)
Parts code: 8-967-995-76
10) Adjustment remote commander (J-6082-053-B)
11) CPC jig connector (J-6082-539-A)
12) I/F unit for LANC control (J-6082-521-A)
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