Sony VFH-990 User manual

HD ELECTRONIC VIEWFINDER
HDVF-C950W
MAINTENANCE MANUAL
1st Edition
Serial No. 100001 and Higher
OUTDOOR HOOD
VFH-990

HDVF-C950W
!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-C950W
Table of Contents
Manual Structure
Purpose of this manual ........................................................... 3 (E)
Relative manual ...................................................................... 3 (E)
1. Service Overview
1-1. Board Layout ........................................................... 1-1 (E)
1-2. Matching Connectors and Cables ............................ 1-1 (E)
1-2-1. Cable Input/Output Signals ............................ 1-1 (E)
1-2-2. VF Connecting Cable ..................................... 1-2 (E)
1-3. Circuit Overview ..................................................... 1-3 (E)
1-4. List of Tools, Used Equipment, and
Adjustment Equipment ............................................ 1-4 (E)
1-5. Firmware and Software ............................................ 1-5 (E)
1-5-1. Checking the ROM and Software Version ..... 1-5 (E)
1-5-2. Writing and Rewriting PLD Internal Data ..... 1-5 (E)
1-6. Description of On-board Switches ........................... 1-7 (E)
1-7. Removal/Installation of Main Parts ......................... 1-8 (E)
1-7-1. Removing LCD Module ................................. 1-8 (E)
1-7-2. Removing the LE-317 Board ....................... 1-10 (E)
1-7-3. Removing the PR-292 Board ....................... 1-10 (E)
1-7-4. Removing the RE-237 Board ....................... 1-11 (E)
1-7-5. Removing the LE-315 Board ....................... 1-11 (E)
1-7-6. Removing the LE-316 Board ....................... 1-12 (E)
1-7-7. Removing the SW-1298 Board .................... 1-13 (E)
1-7-8. Removing the VR-315 Board ....................... 1-13 (E)
1-7-9. Removing the Harness (VF) ......................... 1-14 (E)
1-8. Extending the Circuit Board .................................. 1-15 (E)
1-8-1. Service Position ............................................ 1-15 (E)
1-8-2. RE-237 Board ............................................... 1-15 (E)
1-9. Fuse and IC Link Replacement .............................. 1-16 (E)
1-10. Unleaded Solder ..................................................... 1-16 (E)
2. Setting Menu
2-1. Setting Menu ............................................................ 2-1 (E)
2-2. TOP Menu ............................................................... 2-2 (E)
2-3. OPERATION Menu ................................................ 2-3 (E)
2-4. SERVICE Menu ...................................................... 2-3 (E)
3. Electrical Alignment
3-1. Preparation ............................................................... 3-1 (E)
3-1-1. Description of Switches, Controls, and
Menu Settings ................................................. 3-1 (E)
3-1-2. Used Equipment ............................................. 3-1 (E)
3-1-3. Connection ..................................................... 3-1 (E)
3-1-4. Format Settings .............................................. 3-1 (E)
3-2. Inverter Power Supply Voltage Adjustment ............ 3-2 (E)
3-3. Brightness Initial Adjustment .................................. 3-2 (E)
3-4. Color Temperature Adjustment ............................... 3-2 (E)
3-5. Brightness Final Adjustment ................................... 3-3 (E)
4. Spare Parts
4-1. Notes on Repair Parts ..................................................... 4-1
4-2. Exploded Views .............................................................. 4-2
4-3. Electrical Parts List ......................................................... 4-6
4-4. Packing Materials & Supplied Accessories ..................4-19
5. Semiconductor Pin Assignments
6. Block Diagrams
Overall ............................................................................ 6-2
RE-237 ............................................................................ 6-3

2 (E) HDVF-C950W
7. Schematic Diagrams
LE-315 ............................................................................ 7-1
LE-316 ............................................................................ 7-1
LE-317 ............................................................................ 7-2
PR-292 ............................................................................ 7-3
RE-237 .......................................................................... 7-10
SW-1298 ....................................................................... 7-12
SW-1299 ....................................................................... 7-12
VR-315 ......................................................................... 7-12
Frame Wiring ................................................................ 7-13
8. Board Layouts
LE-315 ............................................................................ 8-2
LE-316 ............................................................................ 8-2
LE-317 ............................................................................ 8-2
PR-292 ............................................................................ 8-4
RE-237 ............................................................................ 8-5
SW-1298 .........................................................................8-5
SW-1299 .........................................................................8-5
VR-315 ........................................................................... 8-5

3 (E)
HDVF-C950W
Manual Structure
Purpose of this manual
This manual is the maintenance manual for HD Electronic Viewfinder HDVF-
C950W. 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 service overview, electrical alignment, spare parts lists, block diagram and
schematic diagrams, 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.
The maintenance manual contains a complete list of semiconductors and their ID
Nos., and thus should be used together with the CD-ROM.
Part number: 9-968-546-0X

1-1 (E)
HDVF-C950W
Section 1
Service Overview
1-1. Board Layout 1-2. Matching Connectors and Cables
Use the included VF connection cable when connecting to
the camera for installation or servicing.
1-2-1. Cable Input/Output Signals
The VF connection cable input/output signals are as
follows.
.CAMERA (20-pin Male)
(External view)
No. Signal I/O Specifications
1 S-DATA IN/OUT TTL level
2 NC No connection
3 POWER OFF IN ON : OPEN
OFF : GND
4 SCK IN TTL level
5 COLOR/MONO OUT MONO : GND
COLOR : OPEN
6 NC No connection
7 NC No connection
8 G TALLY IN ON : +5 V
OFF : GND
9 PEAKING CTL OUT 0 V to +5 V
0 V : PEAKING OFF
+5 V : PEAKING MAX
10 NC No connection
11 NC No connection
12 Y VIDEO IN 1.0 Vp-p, Zi=75 Z
13 VIDEO GND _GND for VIDEO
14 Pb VIDEO IN 0.7 Vp-p, Zi=75 Z
15 Pr VIDEO IN 0.7 Vp-p, Zi=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 +10.5 V to 17 V
VR-315
SW-1298
PR-292
RE-237
LE-317
LE-315
SW-1299
LE-316

1-2 (E) HDVF-C950W
.VF (20-pin Male)
(External view)
No. Signal I/O Specifications
1 S-DATA IN/OUT TTL level
2 NC No connection
3 POWER OFF IN ON : OPEN
OFF : GND
4 SCK IN TTL level
5 COLOR/MONO OUT MONO : GND
COLOR : OPEN
6 NC No connection
7 UNREG IN +10.5 V to 17 V
8 G TALLY IN ON : +5 V
OFF : GND
9 PEAKING CTL OUT 0 V to +5 V
0 V : PEAKING OFF
+5 V : PEAKING MAX
10 NC No connection
11 UNREG GND _GND for UNREG
12 Y VIDEO IN 1.0 Vp-p, Zi=75 Z
13 VIDEO GND _GND for VIDEO
14 Pb VIDEO IN 0.7 Vp-p, Zi=75 Z
15 Pr VIDEO IN 0.7 Vp-p, Zi=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 +10.5 V to 17 V
1-2-2. VF Connecting Cable
This cable is used for connecting the main unit to the
camera.
5
10
15
20
1
6
11
16
1-830-631-11
VF side CAMERA side

1-3 (E)
HDVF-C950W
1-3. Circuit Overview
PR-292 board
The PR-292 board consists of the video amplifier circuit,
A/D conversion circuit, video processing circuit, clock
generation circuit, tally control circuit, and micro computer.
The analog HD Y/Pb/Pr signal input from CN1 passes
through the pre-filter (FL200-202) and the video amplifier
before it is converted into a 74 Msps rate, 10 bit digital
signal with the A/D converter (IC214-216). It then passes
through FPGA (IC300) before finally being input to the
video processing IC (IC400).
In FPGA, PLL is added to the sync signal generated in the
sync separation circuit and HD/VD is output.
In addition, the parameter settings for video processing IC
and clock generation IC (IC306) are configured, the
internal test signal is generated, and IIC communication is
performed with the connected camera.
The video processing IC converts the input HD Y/Pb/Pr
digital signal into a WVGA RGB digital signal and outputs
that signal. Brightness and contrast settings are also
performed.
The RGB digital signal is entered into FPGA again where
peaking processing and knee correction processing are
performed before the signal is converted into an 8 bit
digital signal. The video signal is superimposed on the
OSD signal and indicator display, and then the signal is
output to the LVDS transmitter circuit (IC700).
The LVDS transmitter converts 8 bit RGB digital signals
and sync signals into LVDS signals and outputs them to
CN5.
CPU (IC600) performs parallel communication with
FPGA, controls the character generator (IC601) and D/A
converter (IC614), and performs IIC communication with
the panel module.
The A/D input port connects to the signal wires for
brightness, contrast, peaking, and volume level and
controls these parameters.
The D/A converter controls the dimmer for the external
tally lamp and the voltage for the backlight power supply.
IIC communication with the panel module controls PWM
modulated light for the backlight and the black insertion
rate.
Data such as luminance and color temperature adjustment
data are saved on EEPROM (IC606) on the board.
FPGA can be upgraded for E-Production through CN14.
(Refer to Section 1-5-2.)
RE-237 board
The voltage comparison circuit (IC2) supplies power to
each control IC (IC3, IC6, IC7) when the input voltage
falls within the appropriate range.
The power supply turns on when the input voltage is
within the range of +9.8 V to +19.0 V. After the power
supply turns on, it continues to operate until the input
voltage falls below the lower limit (+7.5 V).
Each output is connected to a short-circuit detection
circuit. If any of the outputs are short-circuited or if a
signal is not output due to some error, the short-circuit
detection circuit outputs the H SHUT DOWN signal.
This signal causes the supplied UNREG +12 V to be cut
off at the source.
+5 V, +3.3 V, and +1.8 V use a step-down chopper
circuit, and _5 V uses an inverse chopper circuit.
+12 V uses a rising and falling voltage circuit and can
control output voltage in a range of +10.0 V to +13.5 V
with the control voltage (BRIGHT ADJ) from the PR-292
board.

1-4 (E) HDVF-C950W
1-4. List of Tools, Used Equipment, and Adjustment Equipment
Tools
No. Part No. Name Usage
1A-1239-470-A PR/RE extension assembly RE-237 board extension
1-A 1-832-098-11 Flexible card wire Refer to Section 1-8.
(30p, 150 mm)
2J-7120-140-A Data download cable PLD data download
3J-6352-400-A Torque screwdriver (3 kgf.cm) Panel module mounting
3-A Torque screwdriver bit (M2.6)
Used equipment
Used equipment Model name
HDVS camera HDC-1500 series or HDW-F900R
Adjustment equipment
Adjustment equipment Model name
Display color analyzer Konica Minolta sensing CA-210 or equivalent
Digital voltmeter Advantest TR6845 or equivalent

1-5 (E)
HDVF-C950W
1-5. Firmware and Software
n
Do not version down the ROM. The equipment may stop
working correctly.
The PR-292 board on the unit is equipped with the ROMs.
Board Ref. No. Address
PR-292 IC305 D2/A side
IC314 D2/A side
IC600 C3/A side
1-5-1. Checking the ROM and Software
Version
1. Display the TOP menu.
Refer to “2-2. TOP Menu”.
2. Display the VERSION screen in the SERVICE menu.
3. Check the ROM version.
1-5-2. Writing and Rewriting PLD Internal
Data
The device is equipped with a PLD (Programmable Logic
Device) that can be written and rewritten using the e-
Production (EPR) method.
When replacing the following parts or upgrading the PLD
version, contact your local Sony Sales Office/Service
Center.
n
The part number of the PLD (or the ROM for the PLD)
noted in “Spare Parts” is for a part with no data written.
When you need to replace any part, write data using the
steps on the next page.
For a PLD that has a program operating on the externally
connected ROM, when a part in the PLD is defective, if
you replace only the defective part, you do not have to
rewrite the data.
About e-Production
.When writing or rewriting the PLD internal data,
1. Standard tools (cables) can be used.
2. Standard software (PLD Download Tool) can be
used.
.The PLD internal data is managed on the Sony database
server as a Project file (E_xxx_xxx_xx_xx).
.The standard connector (EPR connector) for writing
PLD internal data on the board is equipped. “EPR” is
displayed on the board.
Corresponding PLDs :
Name of board
PLD/ROM EPR connector Project file No.
PR-292
IC305*1, IC314*1,
IC300 CN14 E_000_003_61_01
*1 : IC305 and IC314/PR-292 are the ROMs for IC300/PR-292.
VF MENU
S08 VERSION
SOFTWARE
MAIN: 1.00
BOOT: 1.00
FPGA : 1.00

1-6 (E) HDVF-C950W
Used equipment
.PLD download tool (Sony part No. : J-7120-140-A)
Cable to connect PC and the device
.PC
Computer with a parallel port.
Computer with PLD Download Tool installed.
For the supported OS and operating environment, refer
to “Download Tool Operation Manual (Device Writing
Volume)”.
Operation procedure
The procedure to write data to the PLD (or the ROM for
the PLD) is outlined below.
For details on these steps, refer to “Download Tool
Operation Manual (Device Writing Volume)”.
“Download Tool Operation Manual (Device Writing
Volume)” can be obtained on the same Web site where the
PLD Download Tool software is downloaded.
Step 1. Prepare the Project file.
n
Download the Project file from the Sony database
server.
Step 2. With the power of the device turned off, connect
the parallel port on the PC and the EPR connector
on the target board with the PLD download tool
(cable).
Step 3. Turn on the power of the device.
Launch the PLD Download Tool software, and
import the Project file.
Step 4. Program the PLD (or the ROM for the PLD) by
using the PLD Download Tool software.
Step 5. When the programming completes correctly
(without an error message), restart the device.

1-7 (E)
HDVF-C950W
1-6. Description of On-board Switches
PR-292 board
Ref. No. Name Bit Contents Factory default
setting
S600 Model ID 1 to 4 All OFF
S601 SECOND VF settings 1 OFF: Normal OFF
ON : When used as the Second VF*1
Input signal format 2 to 4 All OFF
settings*2
5ON
6 OFF
BOOT SOFT VERSION UP 7 OFF : Normal OFF
ON : During VERSION UP
MAIN SOFT VERSION UP 8 OFF: Normal OFF
ON : During VERSION UP
*1 : Set this to ON only when using the device as the second VF by connecting it to the EXT I/O (20P) connector of HDC-950 or HDC-
930. (No setting change is required when using the device alone.)
In this case, a dedicated VF connection cable and the corresponding camera settings are needed.
Contact your nearest SONY Office/Service Center for details.
No setting change is required when connecting the device to the EXT I/O (20P) connector of HDC-F950.
*2 : The input signal format must be set according to the connected camera. Change the setting only when you want to fix the format on
the VF side.
2 1
O N
3 4 5 6 7 8
S601
O N
1 2 3 4
S600
AUTO 60i 50i 24PsF
2 OFF ON OFF ON
3 OFF OFF ON ON
4 OFF OFF OFF OFF

1-8 (E) HDVF-C950W
1-7. Removal/Installation of Main Parts
1-7-1. Removing LCD Module
n
When installing the dustproof cushions, install new
dustproof cushions.
Dustproof cushions (H), (V), conductive fabric tape
1. Remove the four screws and remove the rear cover
assembly.
2. Disconnect the six harnesses from the connectors
(CN5, CN6, CN8, CN9, CN11 and CN12) of the PR-
292 board.
3. Remove the two screws and remove the two GND
terminals from the CN box bracket.
n
When installing the GND terminals, install them in the
remote location from the hole “A” with the terminal
facing inside.
4. Peel the conductive fabric tape at the bottom of the CN
box bracket.
Precautions for installation
.Affix the conductive fabric tape before connecting
the harness.
.Affix the conductive fabric tape to the CN box
bracket and the EMC cover after installing the CN
box bracket to the bezel assembly.
5. Remove the four screws and remove the bezel assem-
bly from the CN box bracket.
m
.When the CN box bracket is removed from the bezel
assembly, the tilt shaft covers are removed. Be
careful not to drop them.
.When installing the bezel assembly to the CN box
bracket, install the bezel assembly to the CN box
bracket first of all. Then, connect the harnesses.
6. Remove the right and left tilt shaft covers from the
groove of the bezel cover assembly.
B3 x8
Rear cover assembly
CN12
CN11
CN9
CN5
CN8
CN6
B2.6 x5
B2.6 x5
B2.6 x5
CN box bracket
CN box bracket
Bezel
assembly
GND
terminals
CN box bracket
EMC cover
GND terminal
Hole
“A”
Hole “A”
Tilt shaft covers
PR-292 board
Groove
Bezel
assembly
Tilt shaft
cover
Tilt stand
assembly
Conductive fabric tape
Conductive fabric tape

1-9 (E)
HDVF-C950W
B2.6 x5
LCD unit
Bezel assembly
Harness (BL)
Harness (LVDS)
CN1
P1
LCD bracket (L)
Shield cushion
LCD module
LCD bracket (R)
B2.6 x5
B2.6 x5
LCD bracket (L)
LCD unit
B2.6 x5
B2.6 x5
EMC cover
EMC cover
GND terminal
Dustproof cushions (V)
Dustproof
cushions (H)
7. Remove the four screws and remove the LCD unit.
n
Standard tightening torque :
25 x10_2N.m (2.5 kg.cm)
8. Remove the two screws and remove the GND terminal
and the EMC cover in the direction of arrow.
9. Remove the two dustproof cushions (V) and the two
dustproof cushions (H) from the front of the LCD
panel.
10. Remove the four screws and remove the LCD brackets
(L) / (R).
11. Disconnect the harnesses from the two connectors
(CN1, P1) of the LCD module, and remove the shield
cushion.
12. Reinstall it by reversing the steps 1 to 11 of disassem-
bling.
n
When the LCD module is replaced, the adjustment is
required. Refer to “Section 3. Electrical Adjustment”.

1-10 (E) HDVF-C950W
Board-to-board
RE-237 board
PS2.5 x5
PSW3 x6
CN2
PSW3 x6
PSW3 x6
PR-292 board
Claws
Dowel for
PR-292 board
SW-1299 board
PR-292 board
CN10
CN2
To the rear of
the main unit
To the front of
the main unit
Harness (VF)
CN box bracket
Ahole
CN box bracket
Ahole
Harness (SW1)
PR-292 board
Harness (VF)
Harness (VF)
CN1
GND terminal
1-7-2. Removing the LE-317 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the two screws and remove the LE-317 board
from the board-to-board connector of the PR-292
board.
4. Reinstall it by reversing the steps 1 to 3 of disassem-
bling.
1-7-3. Removing the PR-292 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the LE-317 board.
(Refer to Section 1-7-2 step 3.)
4. Remove the screw and remove the GND terminal.
5. Disconnect the harness from the connector (CN1) of
the PR-292 board.
6. Disconnect the two harnesses from the connectors
(CN2, CN10) of the PR-292 board.
n
Disconnect the harness (VF) on the connector (CN2)
side of the PR-292 board toward the front side of the
main unit through the CN box bracket Ahole.
7. Remove the two screws and remove the PR-292 board.
8. Remove the three screws (PS2.5 x5), and remove the
RE-237 board.
n
When installing the RE-237 board, apply the screw
locking compound.
9. Reinstall it by reversing the steps 1 to 8 of disassem-
bling.
LE-317 board
PR-292 board
Dowel for LE-317 board
Board-to-board
PSW3 x6

1-11 (E)
HDVF-C950W
Board-to-board
PR-292 board
RE-237 board
PS2.5 x5
1-7-4. Removing the RE-237 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the three screws and remove the RE-237
board.
n
When installing the RE-237 board, apply the screw
locking compound to the screws.
4. Reinstall it by reversing the steps 1 to 3 of disassem-
bling.
1-7-5. Removing the LE-315 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the LCD unit.
(Refer to Section 1-7-1 steps 2 to 7.)
3. Remove the four screws and remove the LED bracket
and the LE-315 board from the bezel assembly in the
direction of arrow.
m
.To install the LED bracket and the LE-315 board to
the bezel assembly, pass the harness (LE) through
the cut-out for the harness (LE).
Be careful not to pinch the harness (LE) with the
LED bracket.
.Do not scar the protection panel.
n
Standard tightening torque :
25 x10_2N.m (2.5 kg.cm)
4. Disconnect the harness from the connector (CN1) of
the LE-315 board.
5. Remove the two screws and remove the LED bracket
from the LE-315 board.
6. Reinstall it by reversing the steps 1 to 5 of disassem-
bling.
B2.6 x5
LE-315 board
Harness (LE)
LED bracket
BTP2.6 x6
LED bracket,
LE-315 board
Bezel assembly
Cut-out for the harness (LE)
Harness (LE)
LE-315 board
(CN1)
LED bracket

1-12 (E) HDVF-C950W
BTP2.6 x6
LED bracket,
LE-316 board
Bezel assembly
LE-316 board
(CN1)
LED bracket
Cut-out for the
harness (LE)
Protection panel
B
Protection panel
LE-316 board
LED bracket
A
Harness (LE)
CN1
LE-316 board
LED bracket
B2.6 x5
Harness (LE)
1-7-6. Removing the LE-316 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the four screws. Raise the protection panel in
the direction of arrow A, and remove the LED bracket
and the LE-316 board in the direction of arrow B.
m
.To install the LED bracket and the LE-316 board in
the bezel assembly, pass the harness (LE) through
the cut-out for the harness (LE).
Be careful not to pinch the harness (LE) with the
LED bracket.
.Do not scar the protection panel.
n
Standard tightening torque :
25 x10_2N.m (2.5 kg.cm)
4. Disconnect the harness from the connector (CN1) of
the LE-316 board.
5. Remove the two screws and remove the LED bracket
from the LE-316 board.
6. Reinstall it by reversing the steps 1 to 5 of disassem-
bling.

1-13 (E)
HDVF-C950W
BTP2.6 x6
B2.6 x5
SW-1298 board
CN1
Bezel assembly
SW bracket
RE knob
Hexagon nut
Splash-proof cushion
Splash-proof rubber
Harness
SW-1298 board,
SW bracket
1-7-7. Removing the SW-1298 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the RE knob and the hexagon nut from the
bezel assembly.
n
Do not scar the front panel.
4. Remove the two screws (BTP2.6 x6), and remove the
SW bracket and the SW-1298 board.
5. Remove the three screws (B2.6 x5), and remove the
splash-proof rubber, the splash-proof cushion and the
SW bracket from the SW-1298 board.
6. Disconnect the harness from the connector (CN1) of
the SW-1298 board
7. Reinstall it by reversing the steps 1 to 6 of disassem-
bling.
1-7-8. Removing the VR-315 Board
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the three VR control knobs from the bezel
assembly.
4. Remove the three VR nuts M6 and remove the VR-
315 board.
n
Do not scar the front panel.
5. Disconnect the harness from the connector (CN1) of
the VR-315 board.
6. Reinstall it by reversing the steps 1 to 5 of disassem-
bling.
VR nut M6
VR control knob
VR-315 board
Harness (VR)
CN1
Bezel assembly

1-14 (E) HDVF-C950W
1-7-9. Removing the Harness (VF)
1. Remove the rear cover assembly.
(Refer to Section 1-7-1 step 1.)
2. Remove the bezel assembly.
(Refer to Section 1-7-1 steps 2 to 5.)
3. Remove the screw and remove the GND terminal.
(Refer to Section 1-7-3 step 4.)
4. Disconnect the harness from the connector (CN1) of
the PR-292 board. (Refer to Section 1-7-3 step 5.)
5. Disconnect the harness from the connector (CN2) of
the PR-292 board and remove it toward the front of the
machine through the CN box bracket Ahole.
(Refer to Section 1-7-3 step 6.)
6. Remove the two screws and remove the arm cover (L).
7. Disconnect the harness through the tilt shaft (L) hole
in the direction of arrow.
n
Be careful not damage the harness (VF).
8. Disconnect the VF connection cable from the harness.
9. Remove the four screws (P2.6 x5), and remove the
GND terminal, the bottom plate and harness from the
pan arm.
10. Remove the harness from the arm lift shaft in the
direction of arrow.
n
Be careful not damage the harness (VF).
11. Remove the two screws (M2 x5) and remove the
harness (VF) from the bottom plate.
12. Reinstall it by reversing the steps 1 to 11 of disassem-
bling.
BTTP2.6 x8
Tilt shaft (L) hole
Arm cover (L)
Harness (VF)
Bottom plate,
harness (VF)
VF connection cable
Harness (VF)
P2.6 x5
Bottom plate
GND terminal
Arm lift shaft
Pan arm
Harness (VF)
Harness (VF)
M2 x5