DOWNLOAD Sony DCR-TRV24E / DCR-TRV25E / DCR-TRV27E (serv.man2) Service Manual ↓ Size: 10.8 MB | Pages: 127 in PDF or view online for FREE

Model
DCR-TRV24E DCR-TRV25E DCR-TRV27E (serv.man2)
Pages
127
Size
10.8 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / LEVEL 2
File
dcr-trv24e-dcr-trv25e-dcr-trv27e-sm2.pdf
Date

Sony DCR-TRV24E / DCR-TRV25E / DCR-TRV27E (serv.man2) Service Manual ▷ View online

5-40
DCR-TRV24E/TRV25E/TRV27E
5-3. VIDEO SECTION ADJUSTMENTS
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 meter
9)
Audio attenuator
10) Regulated power supply
11) Alignment tapes
• Tracking standard (XH2-1)
Parts code: 8-967-997-01
• SW/OL standard (XH2-3)
Parts code: 8-967-997-11
• Audio operation check for PAL (XH5-3P)
Parts code: 8-967-997-55
• System operation check for PAL (XH5-5P)
Parts code: 8-967-997-66
12) Adjustment remote commander (J-6082-053-B)
13) CPC-8 jig (J-6082-388-A)
14) Extension cable (100P, 0.5mm) (J-6082-352-A)
For extension between the VA-117 board (CN4002) and VC-
281 board (CN1007).
5-41
DCR-TRV24E/TRV25E/TRV27E
3-1-2.
Precautions on Adjusting
Note1:
Before performing the adjustments, check the data of page: 0,
address: 10 is “00”. If not, set data: 00 to this address.
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 “VCR” (or
“PLAYER”) or set the “Forced VTR Power ON mode” using
the adjustment remote commander (Note2).
To set to the Camera mode, set the power switch to “CAMERA”
or set the “Forced Camera Power ON mode” using the
adjustment remote commander (Note3).
After completing adjustments, be sure to exit the “Forced VTR
Power ON Mode” or “Forced Camera Power ON Mode”.
(Note5)
2)
The front panel block ( Focus ring, Microphone unit., MA-409
board,  FB-219 board) need not be assembled. To remove it,
disconnect the following connector.
VA-117 board CN4003 (24P, 0.5mm)
3)
Cabinet (R) (CK-108board, LCD block) need not be connected.
But removing the cabinet (R) (removing the VC-281 board
CN1005) means removing the lithium 3V power supply (CK-
108 board, BT5201) , data such as date, time, user-set menus
will be lost. After completing adjustments, reset these data.
But, the self-diagnosis data and the data on history of use (total
drum rotation time etc.) will be kept even if the cabinet (R) has
been removed. (Refer to “5-4.Service Mode” for the data on
the history use and the self-diagnosis data.)
To remove the cabinet (R), disconnect the following connectors.
VA-117 board CN4004 (12P, 0.5mm)
VC-281 board CN1005 (28P, 0.5mm)
4)
The EVF block (LB-077 board) is need not be connected. To
remove it, disconnect the following connector.
VA-117 board CN4201 (20P, 0.5mm)
5)
The intelligent accessory shoe is need not be connected. To
remove it, disconnect the following connector.
VA-117 board CN4001 (20P, 0.5mm)
6)
To open the VA-117 board, use the following extension cable
between the VA-117 board CN4002 and VC-281 board
CN1007.
J-6082-352-A (100P, 0.5mm)
7)
The lens block (CD-366 board) is need not be connected. To
remove it, disconnect the following connectors.
VC-281 board CN1501 (24P, 0.5mm)
VC-281 board CN1301 (27P, 0.3mm)
8)
By setting the “Forced VTR Power ON mode”, the video section
can be operate even if the control switch block (PS-CX2670)
has been removed. When removing it, disconnect the following
connector.
VC-281 board CN1008 (20P, 0.5mm)
Note2:
Setting the “Forced VTR Power ON” mode (VTR mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 02, and press the PAUSE
button of the adjustment remote commander.
The above procedure will enable the VTR power to be turned
on with the control switch block (PS-CX2670 block) removed.
After completing adjustments, be sure to exit the “Forced Power
ON mode”.
Note3:
Setting the “Forced Camera Power ON” mode (Camera mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 01, and press the PAUSE
button of the adjustment remote commander.
The above procedure will enable the camera power to be turned
on with the control switch block (PS-CX2670 block) removed.
After completing adjustments, be sure to exit the “Forced Power
ON mode”.
Note4:
Setting the “Forced Memory Power ON” mode (Memory mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 05, and press the PAUSE
button of the adjustment remote commander.
The above procedure will enable the memory power to be
turned on with the control switch block (PS-CX2670 block)
removed.
After completing adjustments, be sure to exit the “Forced Power
ON mode”.
Note5:
Exiting the “Forced Power ON” mode
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 00, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 0, address: 01, and set data: 00.
5-42
DCR-TRV24E/TRV25E/TRV27E
3-1-3.
Adjusting Connectors
Some of the adjusting points of the video section are concentrated
at VC-281 board CN1002. Connect the measuring instruments via
the CPC-8 jig (J-6082-388-A). The following table lists the pin
numbers and signal names of CN1002.
Table 5-3-1.
3-1-4.
Connecting the Equipment
Connect the measuring instruments as shown in Fig. 5-3-2, and
perform the adjustments.
Adjustment
remote
commander
LANC jack
Main unit
AUDIO/VIDEO jack
TV monitor
VIDEO
(Yellow)
AUDIO L (White)
AUDIO R (Red)
Pin No.
1
3
5
7
9
11
13
15
17
19
Signal Name
LANC SIG
N.C.
EVF VCO
PANEL VG
H START
PANEL COM
N.C.
N.C.
SWP
GND
Pin No.
2
4
6
8
10
12
14
16
18
20
Signal Name
N.C.
EVF VG
GND
PD VCO
XHD/PSIG
TMS (MAKER CHECK)
N.C.
GND
RF IN/LANC JACK IN
RF MON
Fig. 5-3-2.
Fig. 5-3-1.
CN1002
1
2
19
20
Remove the 
CPC lid.
Color bar signal waveform
Color bar pattern
Color bar signal waveform
Color bar pattern
5-43
DCR-TRV24E/TRV25E/TRV27E
3-1-5. 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 
)
Use
Tape path adjustment
Switching position adjustment
Audio system adjustment
Operation check
Name
Tracking standard (XH2-1)
SW/OL standard (XH2-3)
Audio operation check
(XH5-3P)
System operation check
(XH5-5P)
Fig. 5-3-3. Color bar signal of alignment tapes
3-1-6. Input/Output Level and Impedance
Video input/output
Special stereo mini jack
Video signal:
1 Vp-p, 75 
 unbalanced,
sync negative
S video input/output
4-pin mini DIN
Luminance signal:
1 Vp-p, 75 
 unbalanced,
sync negative
Chrominance signal: 0.300 Vp-p, 75 
 unbalanced
Audio input/output
Special stereo mini jack
Input level: 327mV
Input impedance: More than 47k
Output level: 327 mV (at load impedance 47 k
)
Output impedance: Below 2.2 k
Color bar signal waveform
Color bar pattern
1V
0.7V
0.3V
White (100%)
Y
e
llo
w
Cy
an
Green
Magenta
Red
Blue
Burst signal
Horizontal sync signal
0.3V
(100%)
Y
e
llo
w
Cy
an
Green
Magenta
Red
Blue
White
Blac
k
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