Sony HDVF-C30WR User manual

HD ELECTRONIC VIEWFINDER
HDVF-C30WR
MAINTENANCE MANUAL
1st Edition
Serial No. 10001 and Higher

HDVF-C30WR
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!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.

1 (E)
HDVF-C30WR
Table of Contents
Manual Structure
Purpose of this manual............................................................ 3 (E)
Relative manual ...................................................................... 3 (E)
1. Service Overview
1-1. Check Item before Starting Maintenance..................1-1 (E)
1-2. Check Item after Completing Maintenance ..............1-1 (E)
1-3. Board Layouts ...........................................................1-1 (E)
1-4. Circuit Description ....................................................1-2 (E)
1-4-1. PR-312 Board ..................................................1-2 (E)
1-4-2. VPR-103 Board ...............................................1-2 (E)
1-4-3. RE-257 Board .................................................. 1-2 (E)
1-4-4. VR-328 Board..................................................1-2 (E)
1-4-5. SW-1436 Board................................................1-2 (E)
1-4-6. SW-1437 Board................................................1-3 (E)
1-4-7. LE-476 Board ..................................................1-3 (E)
1-4-8. LE-477 Board ..................................................1-3 (E)
1-5. Input and Output Signals of Connectors ...................1-3 (E)
1-6. Functions of On-board Switches and Controls .........1-4 (E)
1-6-1. PR-312 Board ..................................................1-4 (E)
1-6-2. VR-208 Board..................................................1-6 (E)
1-6-3. SW-1437 Board................................................1-7 (E)
1-7. Replacing the Main Parts ..........................................1-8 (E)
1-7-1. Replacing the LCD Module............................. 1-8 (E)
1-7-2. Replacing the Protection Glass and
Glass Cushion ................................................ 1-11 (E)
1-7-3. Replacing the Anti-Glare Sheet ..................... 1-13 (E)
1-8. Setup after Replacement of
the Main Parts and Board........................................1-16 (E)
1-8-1. When the LCD Module is Replaced..............1-16 (E)
1-8-2. When the PR-312 Board is Replaced ............1-16 (E)
1-9. Voltage Check of the RE-257 Board ....................... 1-16 (E)
1-10. How to Measure Luminance ...................................1-17 (E)
1-11. Rewriting the PLD Internal Data ............................1-18 (E)
1-12. Notes on Repair Parts.............................................. 1-20 (E)
1-13. Lead-free Solder...................................................... 1-20 (E)
1-14. Recommended Replacement Parts..........................1-21 (E)
1-15. Viewfinder Rotating Torque Adjustment.................1-22 (E)
1-16. When Rotation of Viewfinder Becomes Difficult ...1-24 (E)
2. Spare Parts
2-1. Notes on Repair Parts...................................................... 2-1
2-2. Exploded Views............................................................... 2-2
2-3. Electrical Parts List ......................................................... 2-7
2-4. Packing Materials & Supplied Accessories................... 2-19
3. Block Diagrams Overall
Overall Block .................................................................. 3-1
4. Schematic Diagrams
LE-476............................................................................. 4-3
LE-477............................................................................. 4-3
PR-312............................................................................. 4-4
RE-257 ............................................................................ 4-8
SW-1436........................................................................ 4-11
SW-1437........................................................................ 4-11
VPR-103........................................................................ 4-12
VR-328 .......................................................................... 4-16
Frame Wiring................................................................. 4-16
5. Board Layouts
LE-476............................................................................. 5-1
LE-477............................................................................. 5-1
VR-328 ............................................................................ 5-1
PR-312............................................................................. 5-2
RE-257 ............................................................................ 5-3
SW-1436.......................................................................... 5-3
SW-1437.......................................................................... 5-3
VPR-103.......................................................................... 5-4

3 (E)
HDVF-C30WR
Manual Structure
Purpose of this manual
This manual is the maintenance manual for Electronic Viewfinder HDVF-C30WR.
This manual describes the information items necessary when the unit is supplied and
installed, items that premise the service based on the components parts such as main
parts replacement, schematic diagrams, board layouts and spare parts lists, assuming
use of system and service engineers.
Relative manual
Besides this maintenance manual the following manual is available for this unit.
.Operation Manual (Supplied with this unit)
This manual is necessary for application and operation of this unit.
.“Semiconductor Pin Assignments” CD-ROM (Available on request)
This “Semiconductor Pin Assignments” CD-ROM allows you to search for
semiconductors used in Broadcast and Professional equipment.
Part number: 9-968-546-06

1-1 (E)
HDVF-C30WR
Section 1
Service Overview
1-1. Check Item before Starting Maintenance
Before connecting to the HDW-750/730 series camcorder, confirm these two points beforehand.
If either one or both of these points is satisfied, this unit that is connected to the HD camcorder will have
the B/W video picture on display.
If this error occurs, modification of the HD camcorder is needed.
Points to be confirmed
1. Version number of the ROM on the AT-143 board of HD camcorder is “V1.51 or lower”.
n
Version number can be confirmed using the DIAGNOSIS menu of HD camcorder.
2. Serial number falls within the followings:
HDW-750 : 70001 to 70557
HDW-750 : 10001 to 10400, 20001 to 20003
HDW-750P : 40001 to 40097
HDW-750CE : 40001 to 40036
HDW-730 : 10001 to 10053
If modification of HD camcorder is needed, contact your local Sony Sales Office/Service Center.
1-2. Check Item after Completing Maintenance
When maintenance work is completed, check that the [SEL] (SEL1/SEL2 selector) switch is set to the
SEL1 position (lower position).
If it is set to the SEL2 position (upper position), the BRIGHT/CONTR/PEAKING adjustment controls are
disabled.
1-3. Board Layouts
PR-312 board
VR-328 board
SW-1436 board
VPR-103 board
RE-257 board
LE-476 board
LE-477 board
SW-1437 board

1-2 (E) HDVF-C30WR
1-4. Circuit Description
1-4-1. PR-312 Board
Input signals Y, Pb, and Pr are passed through a buffer and pre-filter, converted from analog to digital in
74M 10 bits, and then input to FPGA. In FPGA, a video level is adjusted to the prescribed level using a
multiplier. After that, the input signal is passed through a clamping circuit for the next process. Then, the
resultant signal is sent to a circuit that controls a color-difference component when gray scales are added
on both sides of a screen. (Black & White mode and color peaking) The signal is then controlled in
brightness and converted into RGB using a matrix circuit. Lastly, an RGB 8-bit 37M output signal is sent
to the VPR-103 board through MAG control (screen expansion). Each mode switching from the SW-1436
and SW-1437 boards is controlled by FPGA on the PR-312 board, and an internal digital signal is con-
trolled by the level signal, from the VR-328 board, converted from analog to digital on the PR-312 board
(ex. bright level). The PR-312 board mounts S1, S2, and S3. S1 is used for the same external mode
switching (opened to users) as for HDVF-C30W. S2 and S3 are used for factory adjustment.
1-4-2. VPR-103 Board
The RGB 8-bit 37M signal from the PR-312 board is color-converted, gamma-converted, panel-corrected
by IC101, and output to an LCD module. Moreover, it has a function that saves conversion and correction
functions and outputs them directly to a panel. The RGB 8-bit 37M signal from the PR-312 board is once
read into CPLD. The CPLD functions as a signal selector and controls whether to send the signal to
IC101 (color conversion, gamma conversion, and panel correction) in the next stage or send them directly
to the LCD module. When the RGB 8-bit 37M signal is sent to IC101, higher-precision reproducibility
can be obtained by performing each conversion or correction for a panel in IC101. After that, the signal is
passed through CPLD again and sent to the LCD module. The VPR-103 board also mounts a backlight
driver that changes the voltage of LCD backlight and adjusts the contrast.
1-4-3. RE-257 Board
The RE-257 board consists of five switching regulators of analog and digital signal processing voltages (1.2 V,
1.8 V, 2.5 V, 3.2 V, and -7 V). The switching regulators have a short-circuit detection protection function,
respectively. They convert the UNREG voltages from a camera into the voltages above and detect the UNREG
voltages. The switching regulators also have a protection function during generation of low and high voltages.
1-4-4. VR-328 Board
There are two external and internal volume controls for control of brightness, contrast, and peaking. The
VR-328 board mounts a function that switches the volume controls using a [SEL] (SEL1/SEL2 selector)
switch and a tally lamp drive circuit. It also mounts a selector switch for reversing the right and left of a
display screen. The selector switch operates in linkage with the installation of a VF tube.
1-4-5. SW-1436 Board
The SW-1436 board mounts a selector switch of tally, zebra, marker, B&W, and MAG functions. The
obtained information is sent to the PR-312 board.

1-3 (E)
HDVF-C30WR
1-4-6. SW-1437 Board
The SW-1437 board consists of eight selector switches and one push-button switch. The assignable function
can be turned on and off by using the four modes (including OFF) selected using two of the eight selector
switches jointly with the push-button switch. Six types of fixed modes can be selected using the remaining
six selector switches. Like the SW-1436 board, this control information is sent to the PR-312 board.
1-4-7. LE-476 Board
The LE-476 board is an LED-mounted board on the panel's upside for display the state. The board mounts
three types of LEDs: G-TALLY, R-TALLY, and BATT-TALLY.
1-4-8. LE-477 Board
The LE-477 board is an LED-mounted board on the panel's lower side for display the state. The board
mounts five types of LEDs: !, MAG, R-TALLY, for adjustment, and for VTR-save .
1-5. Input and Output Signals of Connectors
VF (20P MALE)
(EXTERNAL VIEW)
Pin No. Signal Name I/O Specifications
1 S-DATA IN/OUT TTL level
2 NC No connection
3 POWER OFF CTL IN POWER ON : OPEN, POWER OFF : GND
4 SCK IN TTL level
5 NC No connection
6 NC No connection
7 NC No connection
8 G TALLY IN ON : 5 V, OFF : GND
9 NC No connection
10 NC No connection
11 NC No connection
12 Y VIDEO IN 1.0 V p-p Zo = 75 Z
13 VIDEO GND GND for VIDEO
14 Pb VIDEO IN 0.7 V p-p Zo = 75 Z
15 Pr VIDEO IN 0.7 V p-p Zo = 75 Z
16 NC No connection
17 R TALLY IN ON : 5 V, OFF : GND
18 NC No connection
19 UNREG GND GND for UNREG
20 UNREG IN DC 10.5 V to 17 V

1-4 (E) HDVF-C30WR
1-6. Functions of On-board Switches and Controls
1-6-1. PR-312 Board
S1 Switch
Ref. No. Description Factory setting
S1-1 Selects whether to enable all of the indicators in the upper and lower sections of the
LCD screen, or only the BATT indicator.
OFF: Enable all indicators.
ON: Enable the BATT indicator only.
S1-2 Selects the function of the B&W button on the front panel.
OFF: Priority given to B&W display.
ON: Priority given to grayscale display.
S1-3 Selects whether the PEAKING variable resistor (RV2/VR-328 board) on the front
panel and the PEAKING control on the side panel should work together with the
[MAG] button on the front panel or the [SEL] (SEL1/SEL2 selector) switch on the
side panel.
OFF: Work together with the [SEL] (SEL1/SEL2 selector) switch.
ON: Work together with the [MAG] button.
This allows you to use different peaking settings for magnified and normal
display.
The following table shows the relationship between switch S1-3 settings and the
times when the PEAKING control and the PEAKING variable resistor are enabled
and disabled.
S1-3: OFF S1-3: ON
[SEL] switch [MAG] button
SEL1 SEL2 ON
(Magnified
display)
OFF
(Normal
display)
PEAKING control*Yes N o No Yes
PEAKING adjust-
ment variable
resistor*
No Yes Yes No
*: Refer to the Section 1-6-2. (Yes : Enabled, No : Disabled)
S1-4 Selects whether the magnified section of the picture is fixed as the center section or
can be selected from the upper left, upper right, lower left, lower right, and center
sections.
(Refer to “Magnifying the Picture” of the Operation Manual for the selection method.)
OFF: Selectable from among the 5 sections.
ON: Fixed as the center section.
In this case, the display automatically returns to normal about 5 seconds after
the [MAG] button is pressed.
S1-5 Enable the color-peaking function by default
(Continued to next page)
S1
S3
S2
(A side)
S1
Switch cover
Side panel
12345678
ON
(Upper side)
All OFF
OFF
(Lower side)

1-5 (E)
HDVF-C30WR
(Continued from previous page)
Ref. No. Description Factory setting
S1-6, 7 Adjust color temperature.
S1-6 S1-7 Color temperature
OFF OFF 6500 K
ON OFF 5600 K
OFF ON 3200 K (for test)
ON ON 9300 K
S1-8 Not used. (Usually OFF)
S2 Switch
Ref. No. Description Factory setting
S2-1 ON: Displays only peaking signal.
S2-2 ON: Crispens in the peaking signal. (For dark place)
S2-3 ON: Inverts the direction of display from right to left or up and down.
S2-4 ON: Crispens in the peaking signal. (According to luminance transition)
S3 Switch
Ref. No. Description Factory setting
S3 Corrects the chromaticity of a panel’s standard color temperature in width of about
0.01 with the chromaticity of S3-7 in a chromaticity diagram as standard.
(For fine-adjustment at factory.)
S3-1 Corrects x and y from the standard. Correction quantity: x +0.01, y +0.01
S3-2 Corrects x and y from the standard. Correction quantity: x _0.01, y _0.01
S3-3 Corrects y from the standard. Correction quantity: +0.01
S3-4 Corrects y from the standard. Correction quantity: _0.01
S3-5 Corrects x from the standard. Correction quantity: +0.01
S3-6 Corrects x from the standard. Correction quantity: _0.01
S3-7 Standard
S3-8 Not correct the chromaticity.
n
.Only one of S3-1 to S3-8 must be set to ON. Do not set two or more switches to
ON or set all switches to OFF.
.Set S3-7 to ON when replacing the LCD module.
12345678
All OFF
ON
(Upper side)
OFF
(Lower side)
R
G
y
x
B
3200 k
5600 k
9300 k 6500 k
Chromaticity diagram
1234
ON
12345678
Only one
of 1 to 7 is
set to ON.
ON
(Upper side)
OFF
(Lower side)

1-6 (E) HDVF-C30WR
1-6-2. VR-208 Board
Switch
Ref. No. Description
S1 [SEL] (SEL1/SEL2 selector) switch (on side panel)
S2 Selects direction of the display scanning from the right or the left.
When the viewfinder tube is installed, this switch is set to ON so that the scanning in the reverse direction is obtained.
Variable Resistor
Ref. No. Description
RV4 BRIGHTNESS
adjustment
They can be adjusted when the [SEL] (SEL1/SEL2 selector) switch (on the
side panel) is set to the SEL2 position.
RV6 CONTRAST adjustment
RV2 PEAKING adjustment This adjustment is enabled by setting of the [SEL] (SEL1/SEL2 selector)
switch or that of the MAG button. For details, refer to Section 1-6-1, Switch
S1-3.
(A side)
S1
S2
RV2 RV4
RV6
1
11
1RV4
1RV6
1RV2
Adjustment variable
resistor cover
Adjustment
variable
resistor
PEAKING control

1-7 (E)
HDVF-C30WR
1-6-3. SW-1437 Board
S1 Switch
Ref. No. Description Factory setting
S1-1fi2 Sets the “assign” operation.
S2-1 S2-2 Assignment function
OFF OFF Non-operation
ON OFF Analog adjustment trigger
OFF ON S-log gamma return ON/OFF
ON ON Color peaking ON/OFF
Analog adjustment trigger
When a camera output analog level is not stabilized for each camera the high
luminance becomes easy to clip or an accurate level cannot be displayed. The
analog adjustment trigger automatically adjusts this trouble on the viewfinder (VF)
sides.
Color peaking
The color peaking reproduces the luminance peaking and color of the portion where
peaking on a black and white display screen, instead of the ordinary peaking of only
luminance are applied .
S1-3 ON: Natural peaking (Sense of resolution prioritized)
OFF: Ordinary peaking (Equal to HDVF-C30W.)
Natural peaking
In this system, the peaking in the vertical direction is used, while noise clip is not
severely applied. A sense of noise slightly becomes strong, and a sense of empha-
sis becomes weak. However, a sense of fine resolution can be obtained.
S1-4 Sets the detection width during level display (gray scale) operation.
ON: ?2 %
OFF: ?5 %
S1-5 Sets the display color during level display (gray scale) operation.
ON: Yellow
OFF: Original image color
S1-6 Reverses the vertical and horizontal directions of a screen.
ON: Reversal
OFF: Ordinary
S1-7 Displays the brightness over level.
ON: Non-display
OFF: Display
S1-8 Power saving mode
ON: Energy saving mode
OFF: Standard
n
The functions below do not operate in the energy saving mode.
.Natural peaking .Color temperature conversion using lower-surface
.Uniformity correction setting switches
.S-log gamma return (S1-6 and S1-7 on the PR-312 board)
.Panel gamma correction .Color area correction
(B side)
S1
1
ON
2345678
All OFF

1-8 (E) HDVF-C30WR
1-7. Replacing the Main Parts
1-7-1. Replacing the LCD Module
n
.When replacing the LCD module, replace the two tapes (13 x50) together.
.Replacement of the LCD module backlight:
The backlight of the LCD module has the life of about 12,000 hours as far as the set color temperature
remains constant.
Replace the backlight when luminance of the backlight decreases to 150 cd/m2or less as a guideline.
Replacement of the backlight only is not possible. Replace the entire LCD module.
1. Loosen the four screws (with stopper) securing the rear
chassis and remove the rear chassis.
2. Disconnect the harness from the connector (CN3) on
the PR-312 board.
3. Disconnect the harness from the connector (CN1) on
the PR-312 board.
4. Remove the rear chassis assembly.
5. Peel off the two tapes (13 x50).
6. Disconnect the harness from the connector (CN5) on
the RE-257 board.
7. Remove the three screws.
8. Disconnect the connector (CN1) on the RE-257 board
from the connector (CN2) on the PR-312 board.
Screws
(with stopper)
Screws
(with stopper)
Rear chassis assembly
CN3
CN1
PR-312 board
Harness
RE-257 board
CN5
CN1
CN2
Harness
Tape (13x50)
Tape (13x50)
PR-312 board
B2 x3

1-9 (E)
HDVF-C30WR
9. Disconnect the four harnesses from the connectors
(CN5, CN6, CN7, CN501) on the PR-312 board.
10. Remove the four screws.
11. Disconnect the connector (CN4) on the PR-312 board
from the connector (CN1) on the VPR-103 board.
12. Remove the four screws, then remove the LCD holder.
13. Disconnect the harness from the connector (CN1) on
the LE-476 board.
14. Disconnect the harness from the connector (CN1) on
the LE-477 board.
15. Remove the three screws, then remove the VPR heat-
sink.
CN4
CN501
Harness
Harnesses
Harness
PR-312 board
CN5
CN6
CN7
VPR-103 board CN1
B2 x3
LCD holder
B2 x3
B2 x3
LE-476 board
CN1
CN1
LE-477 board
VPR heatsink
Harnesses
B2 x3
B2 x3

1-10 (E) HDVF-C30WR
16. Remove the four M-F studs.
17. Disconnect the harness and flexible flat cable from the connector (CN4 and CN5) on the VPR-103
board, then remove the VPR-103 board and LCD back sheet.
18. Remove the four screws, then remove the LCD mask, LED guide, LCD module and LCD back sheet
from the LCD holder.
19. Install the new LCD module.
Precaution for installation
When installing the new LCD module, be careful not to attach dust or fingerprint on the display area
of the LCD module.
20. Perform the setting of the switches S1 and S2 of the PR-312 board. (Refer to Section 1-8-1.)
21. Install the removed parts by reversing the steps 1 to 19 of removal.
Precaution for installation
.Be sure to insert the connectors to the circuit board securely for sure connection of the connectors.
.Apply the tapes (13 x50) to the portion as shown in the figure.
M-F studs
CN5
CN4
VPR-103 board
Harness
LCD mask
LCD holder
LED guide
LCD module
LCD back sheet
LCD back sheet
Flexible flat cable
P2 x2
Tape (13x50)
RE-257 board
Align the tape on the edge of
the RE-257 board.
Align the tape on the edge of the
connector (CN7) on the PR-314
board. PR-312 board
CN7
Tape (13x50)

1-11 (E)
HDVF-C30WR
1-7-2. Replacing the Protection Glass and Glass Cushion
Parts to be prepared in addition to the protection glass:
.Glass cushion, 1 piece : 3-776-618-xx
Removal
1. Push the release knob in the direction of the arrow 
to release the lock and remove the VF tube by rotating
it in the direction of the arrow .
2. Remove the viewfinder main unit and then remove the
LCD module.
(Perform steps 1 to 12 of “1-7-1. Replacing the LCD
module.”)
3. Peel off the protection glass from glass cushion to
remove it.
4. Peel off the glass cushion from the front chassis and
wipe the attaching surface with alcohol.


Fig. 2
Fig. 1
Red marks
VF tube
Release knob
Protection glass
Glass cushion
Front chassis
Attaching
surface

1-12 (E) HDVF-C30WR
Installation
5. Peel off the protection sheet from the new glass cush-
ion and attach the new glass cushion to the attaching
surface.
Precaution for attaching the glass cushion
.Attach the glass cushion so that any portion of the
glass cushion should not protrude from the attaching
surface.
.Attach the glass cushion with care so that any wrin-
kle should not be generated.
6. Peel off the protection sheet form the surface of the
glass cushion attached, and install the new protection
glass.
7. To install, reverse the removal procedure.
Precaution for installation
Align the red marks when installing the VF tube. (Fig.
2 in Removal)
Protection glass
Glass cushion
Attaching surface
Front chassis
Protection
sheets

1-13 (E)
HDVF-C30WR
1-7-3. Replacing the Anti-Glare Sheet
The two different types of anti-glare sheet are used in this unit.
Replace the desired type of anti-glare sheet as necessitated.
Required part
Anti-glare sheet (Upper) 1 piece: 3-789-424-xx
Anti-glare sheet (Lower) 1 piece: 3-789-425-xx
1. Push the release knob to release the lock and remove
the VF tube. (Refer to Section 1-7-2, step 1.)
2. Rotate the fixed ring fully in the direction of the arrow
and align the alignment marks (red lines) of the
fixed ring with that of the VF tube. Then remove the
VF lens unit.
n
Be extremely careful not to give any scar on the polar-
izing filter surface of the viewfinder lens unit during
the removal and installation procedures.

Align marks
(red lines)
Align marks
(red lines)
Fixed rings
Fixed ring
VF tube
VF lens unit
Polarizing filter surface

1-14 (E) HDVF-C30WR
3. Remove the six screws and remove the bayonet ring
(TUBE), elbow sub panel and elbow sub sheet from
the VF tube.
4. Remove the two screws and remove the ground plate
(B-M) and mirror assembly from the VF tube.
n
Be extremely careful not to give any scar or stain on
the mirror surface during the removal and installation
procedures.
Bayonet ring
(TUBE)
Elbow sub panel
Elbow sub sheet
Tapping screws
M2 x5
Tapping screws
M2 x5
VF tube
VF tube
Mirror
assembly
Mirror surface
Ground
plate (B-M)
Tapping screws
M2 x5