Sony Betacam SX DNV-5 User manual

RECORDER UNIT
DNV-5
MAINTENANCE MANUAL Part 1
1st Edition (Revised 1)
Serial No. 10001 and Higher

!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.
Voor de klanten in Nederland
Dit apparaat bevat een MnO2-Li batterij voor memory
back-up.
Raadpleeg uw leverancier over de verwijdering van de
batterij op het moment dat u het apparaat bij einde
levensduur afdankt.
Gooi de batterij niet weg.maar lever hem in als KCA.
Bij dit produkt zijn batterijen geleverd.
Wanneer deze leeg zijn, moet u ze niet
weggooien maar inleveren als KCA.

1
DNV-5
Table of Contents
Manual Structure
Purpose of this manual .............................................................................................. 3
Contents ..................................................................................................................... 3
Relative manual ......................................................................................................... 3
1. Service Overview
1-1. Operating Conditions ..................................................................................1-1
1-2. Supplied Accessories ..................................................................................1-1
1-3. Location of Main Parts and Function of Printed Circuit Boards ................1-2
1-3-1. Location and Function of Printed Circuit Boards ......................1-2
1-3-2. Location of Main Mechanical Parts ...........................................1-4
1-3-3. Location and Function of Sensors..............................................1-6
1-4. Matching Connectors ..................................................................................1-8
1-5. Signal Input and Output ..............................................................................1-9
1-6. Removal/Installation of Cabinet ...............................................................1-14
1-7. Removal/Installation of Cassette Compartment........................................1-16
1-8. Pulling Out and Inserting the Plug-in Boards ...........................................1-17
1-9. Switch/Slit Land Settings on the Boards...................................................1-18
1-9-1. AXM-14 Board ........................................................................1-18
1-9-2. CNB-1 Board ...........................................................................1-19
1-9-3. DVP-1 Board............................................................................1-20
1-9-4. DVP-2 Board............................................................................1-21
1-9-5. TC-80 Board.............................................................................1-22
1-9-6. MDC-5 Board...........................................................................1-24
1-9-7. CT-187 Board...........................................................................1-25
1-9-8. IF-634 Board ............................................................................1-26
1-10. Ejecting the Cassette Tape Manually........................................................1-27
1-11. Inserting the Cassette Tape When the Outside Panel is Removed............1-28
1-12. Cleaning When the Heads are Clogged ....................................................1-28
1-12-1. Cleaning by Cleaning Tape ......................................................1-28
1-12-2. Cleaning by Cleaning Cloth .....................................................1-29
1-13. 50-pin Connector.......................................................................................1-30
1-14. Backup Battery..........................................................................................1-30
1-15. Removal/Installation of Flexible Card Wires ...........................................1-30
1-16. Fixtures......................................................................................................1-31
1-16-1. Extension Boards .....................................................................1-31
1-16-2. Fixtures.....................................................................................1-32

2DNV-5
2. Error Code
2-1. Error Code ...................................................................................................2-1
2-1-1. Warning Indicators .....................................................................2-1
2-1-2. Error Codes ................................................................................2-1
3. Maintenance Mode
3-1. DIAG Memu ...............................................................................................3-1
4. Block Diagram and Outline of Circuit
5. Periodic Maintenance and Inspection
5-1. Cleaning ......................................................................................................5-1
5-1-1. General Information for Cleaning ..............................................5-1
5-1-2. Cleaning of Tape Running Surface of Upper Drum
and Video Heads ........................................................................5-3
5-1-3. Cleaning of Tape Running Surface of Lower Drum
and Lead Surface ........................................................................5-4
5-1-4. Stationary Heads Cleaning .........................................................5-5
5-1-5. Cleaning of Tape Running System and Tape Cleaner ...............5-6
5-2. Periodic Check ............................................................................................5-7
5-2-1. Hours Meter ...............................................................................5-7
5-2-2. Periodic Check List ....................................................................5-8
5-3. Cares After Using at Special Environment .................................................5-9

3
DNV-5
Purpose of this manual This manual is maintenance manual of Recorder Unit DNV-5.
This manual describes the maintenance information of this unit, and the information
on primary services such as the error message and cleaning procedures.
Contents The following is a summary of the sections for understanding the contents of this
manual.
Section 1 Service Overview
Explains the locations of main part, the functions of printed circuit board, the
removal and installation of cabinet, and the measures against trouble.
Section 2 Error Code
Explains the error messages.
Section 3 Maintenance Mode
Explains the maintenance mode of this unit.
Section 4 Overall Block Diagrams and Circuit Descriptions
Describes the overall block diagrams and the circuit descriptions.
Section 5 Periodic Maintenance and Inspection
Explains the cleaning procedures and periodic checks.
Relative manual Besides this “Maintenance Manual Part 1”, the following manuals are available for
this unit.
..
..
.Operation Manual (Supplied with this unit.)
This manual is necessary for application and operation of this unit.
..
..
.Maintenance Manual Part 2 (Not supplied with this unit.)
This manual describes the information items (adjustments, board layouts, sche-
matic diagrams, detailed parts list, etc.) that premise the service based on parts.
If this manual is required, please contact to Sony’s service organization.
Manual Structure

1-1
DNV-5
Section 1
Service Overview
1-1. Operating Conditions
Operating temperature : 0 to 40 dC
Humidity : 25 to 85 % (Relative humidity)
Storage temperature : _20 to 60 dC
Use under special environment (Measure for cold area)
The unit is guaranteed its operation under the temperature of 0 to 40 dC. When the unit is used under 0 dC,
cover-cloth against the cold is recommended to use.
1-2. Supplied Accessories
Description Part No. Quantity
Shoulder belt A-6772-374-A 1
BNC cap 3-604-795-01 5
Dust cap 3-676-269-00 1
XLR cap (2) 3-741-726-01 2
XLR cap (1) 3-741-727-01 2
Operation manual _1
Maintenance manual Part 1 _1

1-2 DNV-5
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-1. Location and Function of Printed Circuit Boards
PS-390
PA-203
DVP-1
DVP-2
IF-634
CT-187
TC-80
MDC-5
KY-293
SW-873 LP-102
SW-882
PA-203
PSW-55
MDR-1
CNB-1
DC-87
IO-117
AXM-14
CO-22
DC-88
MB-627
RE-119
RE-118
RX-26
HN-224
CI-12
HN-224
AL-40
CT-185
HP-70
KY-293
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-1. Location and Function of Printed Circuit Boards

1-3
DNV-5
System Configuration Board Name Circuit Function
VIDEO/AUDIO CT-187 Camera Adaptor Control, 6P-remote Control, Setting Menu
DVP-1 RF, Digital Audio Processor, Timing Clock Generator,
System Controller for VTR Block
DVP-2 Digital Bit Reduction Decoder, Digital Encoder, Digital Decoder
IF-634 50-pin Interface, Video Input/Output
PA-203 Audio Pre-amp for 50-pin
TC-80 Analog Audio Processor, Time Code Generator
DRUM/SERVO HN-224 Harness, TC Amp
MDC-5 Servo Controller
MDR-1 Drum Motor Driver
POWER SUPPLY DC-87 Battery DC Filter
PS-390 Power Supply (Light)
RE-118 Regulator, Switching Control
RE-119 Regulator
CONNECTOR BOX AL-40 Audio CH-2 Line Out Amp
AXM-14 Connector (AUDIO IN/OUT), Audio Pre-amp
CNB-1 Circuit Breaker, Audio CH-1 Line Out Amp
CO-22 Connector (VBS OUT)
CT-185 Power Supply for 50-pin
DC-88 External DC Filter
IO-117 Connector (GEN LOCK IN, TEST OUT, TC IN, TC OUT)
OTHERS CI-12 40-pin Adaptor Interface
HP-70 Earphone
KY-293 Function Key
LP-102 Back Tally, Back Tally Switch
PSW-55 Power Switch
RX-26 Audio Pre-amp for Wireless Microphone
SW-873 Menu and Light Auto/Manual Switch
SW-882 Rotary Encoder Switch
MB-627 Mother Board
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-1. Location and Function of Printed Circuit Boards

1-4 DNV-5
1-3-2. Location of Main Mechanical Parts
1
5
4
6
7
8
9
3
2
!-
!=
@=
!\
@-
!'
@[
@\
@]
@.
!/
![
!]
@'
@;
!;
!,
!.
@/
@,
Mechanical deck
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-2. Location of Main Mechanical Parts
#/

1-5
DNV-5
1: Tension regulator arm
2: S5 tape guide
3: Tension regulator guide (S4 tape guide)
4: S3 tape guide
5: Full erase head
6: Tape cleaner
7: CTL head
8: S2 tape guide (on S slider)
9: S1 tape guide (on S slider)
0: Slip ring
!- : Drum
!= : Video head cleaner
![ : Brush
!] : T1 tape guide (on T slider)
!\ : T2 tape guide (on T slider)
!; : TC head
!' : Capstan motor
!, : Manual eject knob
!. : Threading motor
@/ : Pinch roller
@- : T3 tape guide
@= : T4 tape guide
@[ : Timing belt
@] : T reel table
@\ : T soft brake
@; : Gear
@' : S soft brake
@, : S reel table
@. : Tension regulater band
#/ : Fan motor
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-2. Location of Main Mechanical Parts

1-6 DNV-5
1-3-3. Location and Function of Sensors
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-3. Location and Function of Sensors
ID6
ID4
ID3
ID1
ID2
12 3
5
67
8
9
!/
!-
4
ID5
Mechanical deck

1-7
DNV-5
1: Cassette-in sensor
This sensor detects the existence of a cassette.
2: REC inhibit sensor
This sensor detects the REC inhibiting plug of the cassette tape.
3: Tape end sensor
This sensor detects the end of the tape that runs in the forward direction.
4: Full top sensor
This sensor detects whether the cassette tape is the full top.
5: Condensation sensor
This sensor detects whether the dew condensation occurs in the unit.
6: Tape top sensor
This sensor detects the end of the tape that runs in the reverse direction.
7: Function cam sensor
This sensor detects the rotation position of a cam.
8: Take-up reel table rotating sensor
This sensor detects the rotation of the take-up reel table. The FG output signal of this sensor is
input to a servo circuit so as to calculate the winding diameter of the tape.
9: Cassette lock sensor (switch)
This sensor detects that the cassette compartment was locked.
0: Cassette ID sensors
ID1 : Tape type sensor
This sensor detects the tape type either an oxide or a metal.
ID2 : Tape thickness sensor
Using a tub on the back side of the cassette tape, this sensor detects the thickness of the tape
wound on a cassette tape that is being inserted into the unit.
ID3 : Reel hub diameter sensor
The reel hub diameter of a cassette tape varies depending on the length of the tape wound
on the cassette tape. The reel hub diameter sensor detects the reel hub diameter by the tab
on the back side of the cassette tape.
ID4 to ID6 : Tape format sensors
These sensors detect the type of the cassette tape (for Betacam SX, Betacam SP and
so on).
!- : Supply reel table rotating sensor
This sensor detects the rotation of the supply reel table. The FG output signal of this sensor is
input to a servo circuit so as to calculate the winding diameter of the tape.
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-3. Location and Function of Sensors

1-8 DNV-5
1-4. Matching Connectors
When external cables are connected to the connector during maintenance, the hardware listed below (or
the equivalents) must be used.
Panel Indication Matching Cable Connector/Cable
Name of Connector/Cable Part No.
AUDIO IN CH-1/CH-2 XLR 3-pin, male 1-508-084-00 (for SY)
XLR 3-pin, female 1-508-083-00 (for J)
AUDIO OUT Audio cable SONY CCXA-53 or equivalent
(XLR 5-pin _XLR 3-pin , 2m)
GENLOCK IN BNC 1-560-069-11
TC IN
TC OUT
TEST OUT
VBS OUT
DC IN XLR 4-pin, female 1-508-362-00
DC OUT 12 V DIN 4-pin, male 1-566-425-11
REMOTE 6-pin, male 1-560-078-00
CAMERA 50-pin, male 1-562-112-21
EARPHONE Mini jack Standard product
LIGHT Power tap [OE] ANTONBAUER 33710 or equivalent
1-4. Matching Connectors

1-9
DNV-5
1-5. Signal Input and Output
INPUT
VIDEO 1.0 V p-p, 1 kZ
GENLOCK IN 1.0 V p-p, 75 Z
TC IN 0.5 V to 18 V p-p, 10 kZ
AUDIO IN CH-1/CH-2 _60 dBu/+4 dBu
(0 dBu = 0.775 V rms)
DC IN:XLR 4-pin, male
<External View>
Pin No. Signal
1 GND
2_
3_
4 EXT DC (DC 11 to 17 V)
BATT IN:5-pin, male
<External View>
Pin No. Signal
1 BATT IN (_)
2 BATT ID
3 BATT REM
4 LIGHT CONT
5 BATT IN (+)
OUTPUT
TEST OUT 1.0 V p-p, 75 Z, unbalanced
TC OUT 1.0 V p-p, 75 Z
VIDEO OUT 1.0 V p-p, 75 Z, unbalanced
EARPHONE _∞to _18 dBu, adjustable, 8 Z
AUDIO OUT 0 dBm (600 Zterminated)
DC OUT 12V:DIN 4-pin, female
<External View>
Pin No. Signal
1 UNREG GND
2_
3_
4 UNREG +12 V
(DC 11 to 17 V, 0.1 A MAX)
REMOTE:6-pin, female
<External View>
Pin No. Signal
1 SD (RM)
2 SD (RM) I/O
3 UNREG GND
4 RM TEST (X)
5 RM TEST (G)
6 UNREG +12 V
1-5. Signal Input and Output
12345
4
1
3
2
6
5
43
2
1
1
2
3
4

1-10 DNV-5
AUDIO OUT:XLR 5-pin, male
<External View>
Pin No. Signal
1 GND
2 CH1 (X)
3 CH1 (Y)
4 CH2 (X)
5 CH2 (Y)
LIGHT:2-pin, female
<External View>
Pin No. Signal
1 LIGHT +12 V (30 W MAX)
2 GND
1-5. Signal Input and Output
1
212345

1-11
DNV-5
CAMERA:50-pin, female
<External View>
Pin No. I/O Signal Specification
Camera/VA-5 Direction VTR
1 GENLOCK Zi = 1 kZ±5 % VBS = 1 Vp-p ±3 dB (SYNC negative)
VIDEO IN Zo = Low Impedance
2 GENLOCK
VIDEO(GND)
3*+9 V OUT
4_
5 GND (POWER)
6 GND (POWER)
7_
8_
9_
10 _
11 _
12 _
13 _
14 _
15 MIC (GND) _60 dBm (600 Z) Zi = 3 to 10 kZ
16 MIC (X) Zo = Low Impedance Balanced
17 MIC (Y) (600 Zor less)
Balanced
18 PB VIDEO Zi = 1 kZ ±5 % VS:1 Vp-p ±1 dB
19 GND DC:0 ±200 mV
Zo = 75 Z ±5 %
20 *AUDIO LEVEL Zi >1 kZZo <30 Z
INDICATE _15 dBs±1 dB(Reference) CH-1 only
21 _
22 TAPE IND.1 H:4.5±0.5 V (Camera side open)
(10M) L :0+0.5 V_0
Imax = 10 mA Zo = 330 Z ±5 %
23 TAPE IND.2 H :4.5 ±0.5 V (Camera side open)
(5M) L :0+0.5 V
_0
Imax = 10 mA Zo = 330 Z ±5 %
1-5. Signal Input and Output
17 1
33 50 34 18

1-12 DNV-5
Pin No. I/O Signal Specification
Camera/VA-5 Direction VTR
24 REC TALLY Zi = 20 kZ
A/B: 50 ±10 % duty, frequency 1±0.2 Hz or 4 ±0.8 Hz
25 BATT IND Zi = 300 Z
14.5 V max open,2 to 3 V with 300 ohms load
A/B: 50 +10 % duty, frequency 1 ±0.2 Hz or 4 ±0.8 Hz
**Before end : 11.5 V (Enables to set the voltage in
the diagnostic menu.)
End : 11.0 V (Enables to set the voltage in
the diagnostic menu.)
26 *PB/CAM Zi = 100 kZ ±5 % 4.5 ±0.5 V
SWITCH Zo = 10 kZ ±5 %, L:OPEN
CONTRO
27 VTR/START/ Zo <10 kZSTART: 5.0+0.3 V
STOP START: 5.0 ±1.0 V STOP: 0+0.5 V or OPEN
STOP: 0+0.2 V
28 _
29 R-Y VIDEO V: 0.7 Vp-p ±2 % Zi = 1 kZ ±5 %
NTSC:75 % color bars
PAL:100 % color bars
30 R-Y (GND) Zo = 75 Z±5 %
DC: 0 ±200 mV
31 *CAMERA MIC Control Voltage Zi >100 kZ
LEVEL CONTROL 7 V (MIN LEVEL) to 0 V or OPEN: MAX LEVEL
0 V (MAX LEVEL) 7 V:MIN LEVEL
32 VTR SAVE 4.5 ±0.5 V Zi >100 kZ
(STAND BY (VTR should be in SAVE mode when camera is
: 0 V or OPEN) PREHEAT.)
Zo <10 kZ
33 AUDIO 750Z/1 kHz Low Impedance
MONITOR Level : _6 dBm
34 SYNC VOH= 5.0 +0.2 V
( ) IOH = 1 mA max (This signal should be in VOL when SYNC OFF.)
VOH = 0.8 V max,
IOH = _1.5 mA max
1-5. Signal Input and Output
2 to 3 V/300 Z
Before end**
AB End **
AB REC
Warning Alarm
VTR Connected
V
2.5 ±0.5 V
0 ±0.3 V
REC Reset
10 to 100ms
VTR 
Disconnected
5.0 +1.0
_0.5
_1.0
_1.0
RED LED
8 Z
4.7 µF/16 V
750 Z
Vcc
1
32
_1.0
_1.0

1-13
DNV-5
Pin No. I/O Signal Specification
Camera/VA-5 Direction VTR
35 _
36 *REW CONTROL Zi = 100 kZ ±5 % REW:4.5 ±0.5 V
NORMAL: 0 ±0.5 V
Zo <10 kZ
37 COLOR Zi >100 kZ
FRAMING
( )
NTSC :1st Field (every 4 fields)
V.SYNC/3H PULSE
PAL :1st Field (every 8 fields)
V .SYNC/2.5 H PULSE
PAL M:1st Field (every 8 fields)
V.SYNC/3H PULSE
Zo = 1 kZ ±5 %
DC OUT >10 uF
38 *RETURN NORMAL:OPEN Zi >10Z
CONTROL RETURN :0 V
39 +12 V (POWER) 10.6 V min(at 3A),17.0 V max
40 +12 V (POWER)
41 LUMINANCE VS : 1 Vp-p ±0.5 dB
DC : 0 ±200 mV
Zo = 75 Z ±5 %
SET UP NTSC PAL-M:7.5 %
PAL : 0 %
42 LUMINANCE Zi = 75 Z ±5 %
(GND) PAL
PAL-M
NTSC SECAM
VIDEO 0.714 Vp-p 0.7 Vp-p
SYNC 0.286 Vp-p 0.3 Vp-p
43 *ENCODE VBS : 1 Vp-p ±1 dB Zi = 75 Z ±5 %
VIDEO Zo = 75 Z±5 %
44 *GND DC: 0 ±100 mV
45 _
46 _
47 _
48 _
49 B-Y VIDEO V : 0.7 Vp-p ±2 % Zi = 1 kZ ±5 %
50 B-Y (GND) Zo = 75 Z ±5 %
DC: 0 ±200 mV
NTSC:75 % color bars
PAL :100 % color bars
n
*marked signals are available only when a camera is connected.
1-5. Signal Input and Output
5.0 ±1.0 V
beginning V SYNC

1-14 DNV-5
1-6. Removal/Installation of Cabinet
m
.Be sure to turn off the power, then pull out the power cord and/or battery before performing the follow-
ing procedure. If not, damage to internal circuit may result.
.The standard tightening torques of main screws used in this unit are as follows:
M1.4 (+) screw : 9 x 10-2N.m (0.9 kgf.cm)
M2 (+), M3 (+) and hexagon screws : 19 x 10-2 N.m (1.9 kgf.cm)
1-6. Removal/Installation of Cabinet
Flexible card wires Inside panel
Inside panel
Protection
cover
Outside Panel
Front lid Handle
Screws
Screws
Screws
CN30
Hinge
Hinge
CN101
CN102
Hook section of the outside panel
CN27
CN701
Shield plate
Rib of the fromt lid
Tighitening torque 80 x10-2 N.m (8.1 kgf.cm)
Screws Screws