Sony DNW-7 User manual

DIGITAL CAMCORDER
DNW-7/7P
DNW-9WS/9WSP
DNW-90/90P
DNW-90WS/90WSP
MAINTENANCE MANUAL Part 1
1st Edition (Revised 4)
Serial No. 10001 and Higher
(DNW-7/9WS/90/90WS)
Serial No. 40001 and Higher
(DNW-7P/9WSP/90P/90WSP)

DNW-7/90/90WS
!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.
X-RAY RADIATION WARNING
Be sure that parts replacement in the high voltage block
and adjustments made to the high voltage circuits are
carried out precisely in accordance with the procedures
given in this manual.

DNW-7/90/90WS 1 (P)
For the customers in the Netherlands
Voor de klanten in Nederland
Hoe u de batterijen moet verwijderen, leest u in de van
deze handleiding deel 2.
Gooi de batterij niet weg maar lever deze in als klein
chemisch afval (KCA).
Für Kunden in Deutschland
Entsorgungshinweis: Bitte werfen Sie nur entladene
Batterien in die Sammelboxen beim Handel oder den
Kommunen. Entladen sind Batterien in der Regel dann,
wenn das Gerät abschaltet und signalisiert “Batterie
leer”oder nach längerer Gebrauchsdauer der Batterien
“nicht mehr einwandfrei funktioniert”. Um
sicherzugehen, kleben Sie die Batteriepole z.B. mit
einem Klebestreifen ab oder geben Sie die Batterien
einzeln in einen Plastikbeutel.

1
DNW-7/90/90WS
Table of Contents
Manual Structure
Purpose of this manual .............................................................................................. 5
Contents ..................................................................................................................... 5
Relative manual ......................................................................................................... 6
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 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 ...............................................................1-12
1-7. Removal/Installation of Cassette Compartment........................................1-14
1-8. Pulling Out and Inserting the Plug-in Boards ...........................................1-15
1-9. Switch/Slit Land Settings on the Boards...................................................1-16
1-9-1. AXM-14 Board ........................................................................1-16
1-9-2. CNB-1 Board ...........................................................................1-17
1-9-3. DVP-1 Board............................................................................1-18
1-9-4. DVP-2 Board............................................................................1-19
1-9-5. TC-80 Board.............................................................................1-20
1-9-6. MDC-5 Board...........................................................................1-22
1-9-7. DCP-31/1 Board .......................................................................1-23
1-9-8. TG-207/164 Board (for DNW-9WS/9WSP/90/90P/90WS/
90WSP only) ............................................................................1-24
1-10. Ejecting the Cassette Tape Manually ........................................................1-25
1-11. Inserting the Cassette Tape when the Outside Panel is Removed ............1-26
1-12. Cleaning when the Heads are Clogged .....................................................1-26
1-12-1. Cleaning by Cleaning Tape ......................................................1-26
1-12-2. Cleaning by Cleaning Cloth .....................................................1-27
1-13. Backup Battery..........................................................................................1-28
1-14. Removal/Installation of Flexible Card Wires ...........................................1-28
1-15. Fixtures......................................................................................................1-29
1-15-1. Extension Boards .....................................................................1-29
1-15-2. Fixtures.....................................................................................1-30

2DNW-7/90/90WS
2. Error Code
2-1. Error Code ...................................................................................................2-1
2-1-1. Warning Indicators .....................................................................2-1
2-1-2. Error Codes ................................................................................2-1
2-2. Error Messages............................................................................................2-2
3. Maintenance Mode
3-1. Setup Menu .................................................................................................3-1
3-2. DIAG Menu ..............................................................................................3-24
4. Block Diagram and Circuit Description
5. Electrical Alignment
5-1. General Information for Electrical Adjustment ..........................................5-1
5-1-1. Note for Adjustment...................................................................5-1
5-1-2. Equipment/Fixtures ....................................................................5-1
5-1-3. Initial Setting for Switches .........................................................5-1
5-2. ENC Level Adjustment ...............................................................................5-2
5-3. TEST OUT Adjustment ..............................................................................5-2
5-4. VA Gain Adjustment...................................................................................5-3
5-5. White Shading Adjustment .........................................................................5-4
5-6. Gamma Correction Adjustment ..................................................................5-5
5-7. Black Set Adjustment..................................................................................5-6
5-8. Flare Adjustment .........................................................................................5-6
5-9. Manual Knee and White Clip Adjustments ................................................5-7
5-10. Crispening Adjustment................................................................................5-8
5-11. Level Depandent Adjustment......................................................................5-8
5-12. H/V Ratio Adjustment.................................................................................5-9
5-13. Detail Level Adjustment .............................................................................5-9
5-14. Skin Tone Adjustment...............................................................................5-10
5-15. Zebra Adjustment......................................................................................5-11
5-16. Automatic Iris Adjustment ........................................................................5-12

3
DNW-7/90/90WS
6. Electrical Alignment (Only for DNW-9WS/9WSP/90WS/
90WSP)
6-1. General Information for Electrical Adjustment ..........................................6-1
6-1-1. Note for Adjustment...................................................................6-1
6-1-2. Equipment/Fixtures ....................................................................6-1
6-1-3. Initial Setting for Switches .........................................................6-2
6-2. ENC Level Adjustment ...............................................................................6-3
6-3. TEST OUT Level Adjustment ....................................................................6-3
6-4. VA Gain Adjustment...................................................................................6-4
6-5. White Shading Adjustment .........................................................................6-5
6-6. Gamma Correction Adjustment ..................................................................6-6
6-7. Black Set Adjustment..................................................................................6-7
6-8. Flare Adjustment .........................................................................................6-7
6-9. Manual Knee and White Clip Adjustments ................................................6-8
6-10. Crispening Adjustment (16:9).....................................................................6-9
6-11. Level Depandent Adjustment (16:9) ...........................................................6-9
6-12. H/V Ratio Adjustment (16:9)....................................................................6-10
6-13. Detail Level Adjustment (16:9) ................................................................6-10
6-14. Crispening Adjustment (4:3).....................................................................6-11
6-15. Level Depandent Adjustment (4:3) ...........................................................6-11
6-16. H/V Ratio Adjustment (4:3)......................................................................6-12
6-17. Detail Level Adjustment (4:3) ..................................................................6-12
6-18. Skin Tone Adjustment...............................................................................6-13
6-19. Zebra Adjustment......................................................................................6-14
6-20. Automatic Iris Adjustment ........................................................................6-15
7. Periodic Maintenance and Inspection
7-1. Cleaning ......................................................................................................7-1
7-1-1. General Information for Cleaning ..............................................7-1
7-1-2. Cleaning of Tape Running Surface of Upper Drum
and Video Heads ........................................................................7-3
7-1-3. Cleaning of Tape Running Surface of Lower Drum
and Lead Surface........................................................................7-4
7-1-4. Stationary Heads Cleaning .........................................................7-5
7-1-5. Cleaning of Tape Running System and Tape Cleaner ...............7-6
7-2. Periodic Check ............................................................................................7-7
7-2-1. Hours Meter ...............................................................................7-7
7-2-2. Periodic Check List ....................................................................7-8
7-3. Cares After Using at Special Environment .................................................7-9

5
DNW-7/90/90WS
Purpose of this manual This manual is maintenance manual of Digital Camcorder DNW-7/7P/9WS/9WSP/
90/90P/90WS/90WSP.
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 SETUP menu (ENG mode) and DIAG menu of this unit.
Section 4 Block Diagram and Outline of Circuit
Describes the overall block diagram and the circuit descriptions.
Section 5 Electrical Alignment
Explains the general information for electrical adjustments and the electrical adjust-
ments of camera system.
Section 6 Electrical Alignment (Only for DNW-90WS/90WSP)
Explains the general information for electrical adjustments and the electrical adjust-
ments of camera system.
Section 7 Periodic Maintenance and Inspection
Explains the cleaning procedures and periodic checks.
Manual Structure

6DNW-7/90/90WS
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 Sony’s service organization.
..
..
.BVF-V10/V10CE or BVF-V20W/V20WCE
Maintenance Manual (Not supplied with this unit.)
This manual describes the service information of the viewfinder.
If this manual is required, please contact Sony's service organization.

1-1
DNW-7/90/90WS
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-B 1
Microphone 1-542-295-11 1
Connector cover 3-748-142-01 4
Screw B2 x4 7-621-772-10 3
Operation manual (Printed manual) _1
Operation manual (CD-ROM) _1
Maintenance manual Part 1 _1

1-2 DNW-7/90/90WS
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-1. Location and Function of Printed Circuit Boards
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-1. Location and Function of Printed Circuit Boards
TC-80
DCP-31/1
DVP-2
DVP-1
MDC-5
CI-12
RX-26
RE-119
RE-118
HP-70
CN-1193
(RC-61)
MB-627
CNB-1
AXM-14
CO-22
IO-117
PS-390
AIF-8MA-68SW-808
SW-789
BC-31/25
(BC-32/26)
SW-780
CN-1183
BI-96
DR-387/291
PSW-33
LP-86
TG-206/161
(TG-207/164) ES-11KY-293MDR-1
PS-390PS-390
VA-191/167
PA-228/186
HN-224
SW-823
AL-40 DC-88 DC-88 AL-40
DC-87

1-3
DNW-7/90/90WS
System Board name Function name
CCD BLOCK BI-96 CCD Imager (R, G, B)
CN-1183 Connector Board for BI-96
DR-387/291 CCD Driver
PA-228/186 Pre-amp(Sample & Hold)
TG-206/161 *1Timing Generator
TG-207/164 *2Timing Generator
VA-191/167 Video Amp
CAMERA/VIDEO CN-1193 *3Connector Board for DCP-31/1
RC-61 *4Rate (16:9 to 4:3) Converter
DCP-31/1 Camera Processor
DVP-1 RF, Digital Audio Processor, Timing Clock Generator, System Controller for VTR Block
DVP-2 Digital Bit Reduction Decoder, Digital Encoder, Digital Decoder
ES-11 Composite Encoder
TC-80 Analog Audio Processor, Time Code Generator
DRUM/SERVO HN-224 Harness, TC Amp
MDC-5 Servo Controller
MDR-1 Drum Motor Driver
MICROPHONE AIF-8 Lens Control, Mic Amp
MA-68 Camera Mic Pre-amp
SW-789 Mic Level, Auto White/Black Switch, VTR Start/Stop Switch, Shutter On/Off Select Switch
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)
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-86 Back Tally, Back Tally Switch
PSW-33 Power Switch
RX-26 Audio Pre-amp for Wireless Microphone
SW-780 Switch Panel
SW-808 Rotary Encoder Switch
SW-823 Menu and Light Auto/Manual Switch
MB-627 Mother Board
*1: For DNW-7/7P only
*2: For DNW-9WS/9WSP/90/90P/90WS/90WSP only
*3: For DNW-7/7P/90/90P only
*4: For DNW-9WS/9WSP/90WS/90WSP only
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-1. Location and Function of Printed Circuit Boards

1-4 DNW-7/90/90WS
1-3-2. Location of Main Parts
Mechanical deck
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-2. Location of Main Parts
3
7
6
8
9
0
!-
5
4
![
!]
@]
!'
@[
!.
@\
@'
@;
#-
!=
!\
!;
@.
@,
!,
@/
@-
@=
#/
2
1

1-5
DNW-7/90/90WS
1: CCD block
2: Fan motor
3: Tension regulator arm
4: S5 tape guide
5: Tension regulator guide (S4 tape guide)
6: S3 tape guide
7: Full erase head
8: Tape cleaner
9: CTL head
0: S2 tape guide (on S slider)
!- : S1 tape guide (on S slider)
!= : 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 regulator band
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-2. Location of Main Parts

1-6 DNW-7/90/90WS
1-3-3. Location and Function of Sensors
Mechanical deck
1-3. Location of Main Parts and Function of Printed Circuit Boards
1-3-3. Location and Function of Sensors
1
ID6
ID4
ID3
ID1
ID2
23 4
6
78
9
!/
!-
!=
5
ID5

1-7
DNW-7/90/90WS
1: Temperature sensor
This sensor detects the temperature and then the fan motor is rotated.
2: Cassette-in sensor
This sensor detects the existence of a cassette.
3: REC inhibit sensor
This sensor detects the REC inhibiting plug of the cassette tape.
4: Tape end sensor
This sensor detects the end of the tape that runs in the forward direction.
5: Full top sensor
This sensor detects whether the cassette tape is the full top.
6: Condensation sensor
This sensor detects whether the dew condensation occurs in the unit.
7: Tape top sensor
This sensor detects the end of the tape that runs in the reverse direction.
8: Function cam sensor
This sensor detects the rotation position of a cam.
9: 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.
0: Cassette lock sensor (switch)
This sensor detects that the cassette compartment was locked.
!- : 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 DNW-7/90/90WS
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 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
VIDEO OUT
DC IN XLR 4-pin, female 1-508-362-00
DC OUT 12 V DIN 4-pin, male 1-566-425-11
MIC IN +48 V XLR 3-pin, male 1-508-084-00
REMOTE 6-pin, male 1-560-078-00
EARPHONE Mini jack Standard product
LIGHT Power tap [OE] ANTONBAUER 33710 or equivalent
1-4. Matching Connectors

1-9
DNW-7/90/90WS
1-5. Signal Input and Output
INPUT
GENLOCK IN 1.0 V p-p, 75 Z
TC IN 0.5 V to 18 V p-p, 10 kZ
MIC IN _60 dBu
AUDIO IN CH-1, CH-2 _60 dBu/+4 dBu
(0 dBu = 0.775 Vrms)
DC IN: XLR 4-pin, male
<External View>
Pin No. Signal
1 GND
2_
3_
4 EXT DC (DC 11 to 17 V)
DC OUT 12V: DIN 4-pin, female
<External View>
Pin No. Signal
1 UNREG GND
2_
3_
4 UNREG +12 V (11 to 17 V, 0.1 A MAX)
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)
BATT IN: 5-pin, male
<External View>
Pin No. Signal
1 BATT IN (_)
2 BATT IND
3 BATT REM
4 LIGHT CONT
5 BATT IN (+)
AUDIO OUT: XLR5-pin, male
<External View>
Pin No. Signal
1 GND
2 CH1 (X)
3 CH1 (Y)
4 CH2 (X)
5 CH2 (Y)
1234
12345
12345
41
32
1-5. Signal Input and Output

1-10 DNW-7/90/90WS
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
LIGHT: 2-pin, female
<External View>
Pin No. Signal
1 LIGHT +12 V (30W MAX)
2 GND
1
4
9
18
8
20
12
3
13 17
6
5
43
2
1
VF: 20-pin, female<External View>
Pin No. Signal
1 VTR SAVE
2 ABNORMAL
3 16:9/4:3
4 REC (L)
5 COLOR VF DET
6 CCIR/EIA
7 DISPLAY ON
8 G TALLY
9_
10 Y (X)
11 ZEBRA ON
12 VIDEO (X)
13 AUDIO CTL
14 B-Y (X)
15 R-Y (X)
16 BATT IND
17 REC/TALLY
18 +9.3 V
19 GND
20 UNREG
1
2
1-5. Signal Input and Output