Sony DXF-51 Service Manual
SERVICE MANUAL
MODEL
.............. ......... ....................
DEST. CHASSIS NO. MODEL DEST. CHASSIS NO.
DXF-51 JPN SMC-340-A
Serial No. 30,001 and higher
DXF-51 US/CND SMC-341-A
Serial No. 10,001 and higher
DXF-51 AEP SMC-342-A
Serial No. 40,001 and higher
.............. ......... ....................
DXF-51 US/CND/JPN
Serial No. 100,001 and higher
DXF-51 CE
Serial No. 400,001 and higher
REVISED-1
ELECTRONIC VIEWFINDER
! 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.
WARNING!!
AN INSULATED TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BECAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY A
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE P ART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY . CIRCUIT ADJUSTMENTS THAT ARE CRITICAL TO SAFE OPERATION ARE IDENTIFIED IN THIS MANU AL.
FOLLOW THESE PROCEDURES WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
!!
! MARK ON THE SCHEMA TIC
!!
ATTENTION!!
AFIN D’ÉVITER TOUT RISQUE D’ÉLECTROCUTION
PROVENANT D’UN CHÂSSIS SOUS TENSION, UN
TRANSFORMA TEUR D’ISOLEMENT DOIT ETRE UTILISÉ LORS
DE TOUT DÉPANNAGE.
LE CHÂSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MAPQUE
LES SCHÉMAS DE PRINCIPE, LES VUES EXPLOSÉES ET LES
LISTES DE PIECES SONT D’UNE IMPORTANCE CRITIQUE
POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMÉRO DE PIÈCE EST INDIQUÉ DANS LE PRÉSENT
MANUEL OU DANS DES SUPPLÉMENTS PUBLIÉS P AR SONY.
LES RÉGLAGES DE CIRCUIT DONT L’IMPORTANCE EST CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT
IDENTIFIÉS DANS LE PRÉSENT MANUEL. SUIVRE CES
PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE
COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS
FONCTIONNEMENT EST SUSPECTÉ.
!!
! SUR
!!
DXF-51
Table of Contents
1. Operating Instructions........................................................... 1-1 (E)
2. Service Informations
2-1. Board Layout.........................................................................................2-1 (E)
2-2. Disassembly ..........................................................................................2-1 (E)
2-2-1. Stand Assy Removal ............................................................2-1 (E)
2-2-2. Bezel Assy Removal ............................................................2-2 (E)
2-2-3. Back Cover Removal ...........................................................2-2 (E)
2-2-4. D Board Removal.................................................................2-3 (E)
2-2-5. G and P Boards Removal .....................................................2-4 (E)
2-2-6. A Board Removal.................................................................2-5 (E)
2-2-7. Picture Tube and Q Board Removal ....................................2-6 (E)
2-2-8 Removal of Anode Cap ........................................................2-6 (E)
3. Safety Related Adjustment ................................................. 3-1 (E)
4. Electrical Adjustments
4-1. Preparation ............................................................................................4-1 (E)
4-2. Switching Power Output (RV501) Adjustment ....................................4-1 (E)
4-3. H.V. (RV302) High Voltage Adjustment .............................................4-1 (E)
4-4. H-HOLD (RV104) Adjustment.............................................................4-1 (E)
4-5. V-HOLD (RV103) Adjustment.............................................................4-1 (E)
4-6. V-DUTY (RV107) Adjustment.............................................................4-1 (E)
4-7. H-LEN (L302) Adjustment ...................................................................4-1 (E)
4-8. H-SIZE (RV301) Adjustment ...............................................................4-1 (E)
4-9. Heater Voltage Adjustment...................................................................4-1 (E)
4-10. V-LIN (RV105) Adjustment .................................................................4-2 (E)
4-11. V-SIZE (RV109) Adjustment ...............................................................4-2 (E)
4-12. 16 : 9 V-SIZE (RV108) Adjustment .....................................................4-2 (E)
4-13. V-SIZE PAL (RV110) Adjustment.......................................................4-2 (E)
4-14. BRIGHT (RV102) Adjustment .............................................................4-2 (E)
4-15. FOCUS (RV111) Adjustment ...............................................................4-2 (E)
4-16. Deflecting Yoke Tilt Adjustment..........................................................4-2 (E)
4-17. Centering Adjustment ...........................................................................4-2 (E)
DXF-51
5. Semiconductors................................................................................. 5-1
1 (E)
6. Spare Parts
6-1. Notes on Repair Parts..................................................................................6-1
6-2. Exploded Views .......................................................................................... 6-2
6-3. Electrical Parts List ..................................................................................... 6-6
7. Block Diagrams
Overall.........................................................................................................7-1
8. Diagrams
8-1. Schematic Diagrams and Printed Wiring Boards........................................8-2
Schematic Diagrams
A .................................................................................................................. 8-3
H2 (A)/H2 (B) .............................................................................................8-3
G .................................................................................................................. 8-7
H1 ................................................................................................................ 8-7
Q .................................................................................................................. 8-7
D .................................................................................................................. 8-9
P...................................................................................................................8-9
Printed Wiring Boards
A .................................................................................................................. 8-2
H2 (A)/H2 (B) .............................................................................................8-2
G .................................................................................................................. 8-6
H1 ................................................................................................................ 8-6
Q .................................................................................................................. 8-6
D .................................................................................................................. 8-8
P...................................................................................................................8-8
2 (E)
DXF-51
DXF-51
© 1997 by Sony Corporation
DXF-51
2
Operating Instructions
Page 18
Mode d’emploi
Page 28
Bedienungsanleitung
Seite 38
3-859-686-03(1)
Electronic Viewfinder
Manual de instrucciones
Página 48
Manual d’Istruzioni
Pagina 58
18
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be of
sufficient magnitude to constitute a risk
of electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature
accompanying the appliance.
English
For the customers in the U.S.A.
This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own
expense.
You are cautioned that any changes or modifications not
expressly approved in this manual could void your authority
to operate this equipment.
Owner’s Record
The model and serial numbers are located at the rear.
Record the serial number in the space provided below. Refer
to these numbers whenever you call upon your Sony dealer
regarding this product.
Model No. DXF-51 Serial No.
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
To avoid electrical shock, do not open the
cabinet. Refer servicing to qualified
personnel only.
19
Features ........................................................................... 20
Precautions ...................................................................... 20
Location and Function of Parts and Controls ............. 21
How To Attach and Connect the Unit
to the Camera........................................................... 23
How To Attach the Viewfinder Hood ....................... 25
Operation......................................................................... 26
Panning ...................................................................... 26
Tilting ........................................................................ 26
Specifications................................................................... 27
English
Table of Contents
The shielded interface cable recommended in this manual
must be used with this equipment in order to comply with the
limits for a digital device pursuant to Subpart B of Part 15 of
FCC Rules.
For the customers in Europe
This product with the CE marking complies with the EMC
Directive (89/336/EEC) issued by the Commission of the
European Community.
Compliance with this directive implies conformity to the
following European standards:
• EN55103-1: Electromagnetic Interference (Emission)
• EN55103-2: Electromagnetic Susceptibility (Immunity)
This product is intended for use in the following
Electromagnetic Environment(s):
E1 (residential), E2 (commercial and light industrial), E3
(urban outdoors) and E4 (controlled EMC environment, ex.
TV studio).
Operating Instructions
Section 1
1-1 (E)
Reprinted from the
operating instructions
1-2 (E)
20
Features
The DXF-51 is a 5-inch monochrome electronic viewfinder,
designed for use with Sony DXC series CCD color video
cameras.
• High-resolution picture tube with a horizontal resolution of
over 650 TV lines.
• H/V regulator ensures a stable picture under all conditions.
• Automatically responds to EIA standard (525/59.94) and
CCIR standard (625/50) signals.
Precautions
Operation
• Do not use the unit in a place subject to direct sunlight,
excessive dust, mechanical vibration or shock.
• Do not use the viewfinder outside its operating temperature
range of 0°C to +40°C (32°F to 104°F).
• Should any liquid or solid object fall into the cabinet,
unplug the unit and have it checked by qualified personnel
before operating it any further.
• Allow adequate air circulation to prevent internal heat
build-up.
• Do not expose the unit to extremely high temperatures and
humidity.
Cleaning
Clean the cabinet, panel and controls with a soft, dry cloth,
or a soft cloth that has been lightly moistened with a mild
detergent solution. Do not use any type of solvent, such as
alcohol or benzine, as this may damage the finish.
Repacking
Do not discard the unit’s original packaging. Use the
packaging to afford maximum protection whenever the unit
is transported.
If you have any questions about your viewfinder, contact
your authorized Sony dealer.
• Controls from a camera for the adjustment of image size
transmitted via 16:9 (V compression) and 4:3 signals.
• Has three tally lamps at the front of the camera, and one
main tally lamp at the back.
• While maintaining balance, camera tilts 40 degrees up and
down, and pans 90 degrees to right and left.
21
Location and Function of Parts and Controls
1 TALLY G indicator (green)
Lights while the camera is monitoring.
2 TALLY R indicator (red)
Lights while the camera is recording.
3 External tally lamp (red)
Lights while the camera recording when TALLY switch set
to on.
4 LOCK screw
Adjusts the angle of viewfinder in the vertical direction.
5 D-sub 26-pin connector
Connects 20-pin connector (supplied) to the VF (viewfinder)
connector of the host camera. This connector carries the
video signal, tally signal and power.
1 TALLY G indicator (green)
9 TALLY ON/OFF switch
0 PEAKING ON/OFF switch
qa PEAKING control
qs SHUTTER/GAIN indicator
qd R indicator
qf Auxiliary indicator
2 TALLY R indicator (red)
3 External tally lamp (red)
4 LOCK screw
5 D-sub 26-pin connector
6 CONTRAST control
7 BRIGHT control
8 Viewfinder fixing ring
22
6 CONTRAST control
1)
Turn to adjust the contrast of the picture on the viewfinder
screen.
7 BRIGHT control
1)
Turn to adjust the brightness of the picture on the viewfinder
screen.
8 Viewfinder fixing ring
Fix the viewfinder to the camera.
9 TALLY ON/OFF switch
Enables and disables the external tally lamps 1 and 2.
ON: The external tally lamp turns on and off, as the
camera mode changes.
OFF: The external tally lamp does not light, regardless of
the camera mode.
0 PEAKING ON/OFF switch
Set this switch to on to use the PEAKING control.
qa PEAKING control
1)
Adjusts the outline intensity of the viewfinder image.
qs SHUTTER/GAIN indicator
Lights while the shutter, the gain control, or the AGC
function is switched on.
qd R indicator
Lights while the second tally is on in recording.
qf Auxiliary indicator
Signal warning indicator auxiliary lamp (excludes
SHUTTER/GAIN).
-------------------------------------------------------------------------------------------------------------------------------
--------------------------
1) These controls affect only the viewfinder screen. They have no effect on
the signal being output by the camera.
Location and Function of Parts and Controls
23
How To Attach and Connect the Unit to the Camera
Turn off the power of the camera before attempting the installation.
1
Connect the VF connector cable
(supplied) to the bottom of the
viewfinder.
2
Attach the viewfinder to the
accessory shoe of the camera and fix
it.
The viewfinder can also be attached
with its screen facing the subject, if
desired.
Bottom
VF connector cable
Accessory shoe
Stopper
2 Tighten the fixing ring.
1 Slide the
bracket into
the accessory
shoe until it
stops.
DXF-51
DXF-51
24
How To Attach and Connect the Unit to the Camera
3
Connect the 20-pin connector to the
camera’s VF connector.
to VF connector
VF connector cable
(20-piny26-pin)
25
How To Attach the Viewfinder Hood
When using the viewfinder outdoors, attach the supplied
viewfinder hood to reduce glare.
Fix the hood tightening
screw.
Viewfinder hood (supplied)
26
Operation
Turning on the camera or the camera control unit
automatically supplies power to the viewfinder. The
viewfinder image will appear within several seconds.
Adjust the viewfinder to the desired angle and height.
Panning
Note
When the BRIGHT control is turned fully counterclockwise,
no picture will appear on the viewfinder screen.
Tilting
For details, refer to the instruction manual supplied with the
camera or the CCU.
Adjust the controls
to give the best
possible picture.
Loosen the LOCK screw
to adjust the angle of
the viewfinder that you
want. After you finished
the adjustment, tighten
the LOCK screw to fix
the angle.
90°
40°
90°
40°
40°
27
Specifications
Picture tube 5-inch monochrome
70-degree deflection
Video signal EIA standard/CCIR standard
Scanning system
2 : 1 interlace
525 lines
2 : 1 interlace
625 lines
Scan 5 % underscan
High voltage 8.5 kV
Horizontal resolution
More than 650 lines (at center)
Frequency response
10 MHz at –3 dB
Connectors Exclusive D-sub 26-pin connector
Video input: 1 V(p-p), sync negative,
3 kΩ
Power supply: 12 V DC
Power consumption
11 W
Operating temperature
0°C to +40°C (32°F to 104°F)
Dimensions Approx. 203 × 199 × 289 mm
(w/h/d) (8 × 7
7
/8 × 11
1
/
2
inches)
including viewfinder hood
Mass Approx. 2.4 kg (4 lb 7 oz)
including viewfinder hood
Accessories supplied
Viewfinder hood (1)
VF connector cable
(20-piny26-pin) (1)
Number plate (1)
Operating Instructions (1)
Design and specifications are subject to change without
notice.
1-3 (E)
1-4 (E)
Printed in Malaysia
DXF-51
2-1. Board Layout
Section 2
Service Informations
P
D
H2 (B)
H2 (A)
H1
2-2. Disassembly
2-2-1. Stand Assy Removal
G
A
Q
2 Knob (L)
1 Screw
DXF-51
3 Stopper
4 Screw
8 Scew
7 Stopper
6 Knob (R)
9 Stand assembly
5 Screw
2-1 (E)
2-2-2. Bezel Assy Removal
2 CN601
6 Bezel assy
1 T wo screws
5 Lug
4 Screw
3 CN201, 602
2-2-3. Back Cover Removal
2 Rear cover
1 T wo screws
1 Two screws
1 Two screws
2-2 (E)
DXF-51
2-2-4. D Board Removal
3 T wo connectors
(CN302, 305)
4 D board
1 Three connectors
(CN301, 303, 304)
2 Four screws
DXF-51
2-3 (E)
2-2-5. G and P Boards Removal
1 Four screws
2 T wo connectors
(CN501, 502)
3 G board
4 Four screws
6 P board
5 T wo connectors
(CN401, 402)
2-4 (E)
DXF-51
2-2-6. A Board Removal
n
When the A board is going to be replaced in the monitor that have the serial No. 10001-30000 (UC), 40001-100000 (AEP)
as shown, replace the A board together with the P board at the same time.
1 T wo screws
4 Three connectors
(CN101, 106, 108)
8 T wo screws
9 board
3 Lug
2 T wo screws
5 T wo connectors
(CN104, 107)
6 Three connectors
(CN103, 109, 110)
7 T wo connectors
(CN102, 105)
8 T wo screws
DXF-51
2-5 (E)
2-2-7. Picture Tube and Q Board Removal
c
Anode button
3 Picture tube
1 T o w screws
2 Anode cap
4 T wo screws
5 Q board
1 T wo screws
2-2-8 Removal of Anode Cap
n
Short-circuit the anode of the picture tube and the anode cap to the metal chassis, picture tube shield or carbon painted on
the picture tube, after removing the anode.
..
. Removal Procedure
..
b
a
a
(1) Turn up one side of the rubber cap in the
direction indicated by arrow a.
(2) Using a thumb, pull up the rubber cap
firmly in the direction indicated by
arrow b.
..
. Handling Precautions
..
(1) Do not scratch the surface of anode cap with a sharp object.
(2) Do not press the rubber so hard that it damages the inside of
anode caps. A shatter-hook terminal is built into the rubber.
(3) Do not turn the foot of the rubber over.
The shatter-hook terminal will stick out or damage the rubber.
b
(3) When one side of the rubber cap is
separated from the anode button, the
anode-cap can be removed by turning
up the rubber cap and pulling up it in
the direction of the arrow c.
2-6 (E)
DXF-51
Section 3
Safety Related Adjustment
H.V. Regulation Confirmation
This confirmation must be made whenever the following
parts (with marking in circuit diagram) were replaced.
FBT301, R311, R312, R401, RV302
1. Open C304 on the D board.
2. Enter full white signal to pin 6 (VF VIDEO (X)) of
D-sub 26-pin connector (CN702).
3. Connect a high voltage meter to the HV pin of
FBT301 on the P board.
4. Confirm that the voltage is below DC15 kV when both
BRIGHT and CONTRAST are set to the minimum
position.
5. Confirm that the voltage is below DC13.5 kV when
both BRIGHT and CONTRAST are set to the maximum position.
6. Connect the C304 removed in step1.
++
+B Confirmation
++
1. Connect a digital voltmeter to the TP302.
2. Confirm that the voltage is DC9.5 ± 0.1 V.
If out of the range, perform the switching power output
adjustment (Section 4).
TP302
DXF-51
C304
D board (Conductor side)
3-1 (E)
Section 4
Electrical Adjustments
4-1. Preparation
Make adjustment under the following conditions, unless
otherwise specified:
. BRIGHT : Mechanical center
. CONTRAST : Marker points “3 o’clock” position
. PEAKING switch : OFF
. Input signal : Enter NTSC monoscope signal to pin 6
of D-sub 26-pin connector (CN702)
4-2. Switching Power Output (RV501)
Adjustment
n
All items of electrical adjustment must be checked, if this
adjustment was made.
1. Connect a digital voltmeter to TP103.
2. Rotating RV501, adjust the power to DC9.5 ±0.1 V.
4-6. V-DUTY (RV107) Adjustment
1. Enter PAL signal or NTSC signal to pin 6 of a D-sub
26-pin connector (CN702).
2. Connect an oscilloscope to TP114 and observe a
waveform.
3. Adjust RV107 as follows.
NTSC
18.35 ±0.5 msec
PAL
18.35 ±0.5 msec
4-7. H-LEN (L302) Adjustment
4-3. H.V. (RV302) High Voltage
Adjustment
n
The H-SIZE, V-SIZE, and Heater Voltage must be
checked, if this adjustment was made.
1. Connect a high voltage meter too the HV pin of
FBT301 on the P board.
2. Adjust RV302 to attain DC8 kV.
4-4. H-HOLD (RV104) Adjustment
Preparation : No signal input.
1. Connect a frequency counter to TP111.
2. Adjust RV104 to attain 15.734 ±0.1 kHz.
4-5. V-HOLD (RV103) Adjustment
Preparation : No signal input.
1. Connect a frequency counter to TP112.
2. Adjust RV103 to attain 42 ±1Hz.
1. Adjust L302 so as to attain the best linearity (horizontal direction) of screen.
4-8. H-SIZE (RV301) Adjustment
n
The Heater voltage must be checked, if this adjustment
was made.
1. Adjust RV301 so that horizontal amplitude of screen
becomes 98 ±2 mm.
4-9. Heater Voltage Adjustment
1. Connect a digital voltmeter to TP118.
2. Confirm that the voltage is DC11.7 ±0.3 V.
3. If exceeding this specification. Break the solder of
JP301 and JP302 in this order.
DXF-51
4-1 (E)
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