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Sony DVW-522 Maintenance Manual
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Sony DVW-522 Maintenance Manual

Sony DVW-522 Maintenance Manual

Digital videocassette player, control panel extension kit, control panel case
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DIGITAL VIDEOCASSETTE PLAYER
DVW-522/522P
CONTROL PANEL EXTENSION KIT
BKDW-510
CONTROL PANEL CASE
BKDW-511
MAINTENANCE MANUAL
Part 1
1st Edition (Revised 1)
Serial No. 10001 and Higher (DVW-522)
Serial No. 10001 and Higher (DVW-522P)

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Summary of Contents for Sony DVW-522

  • Page 1 DIGITAL VIDEOCASSETTE PLAYER DVW-522/522P CONTROL PANEL EXTENSION KIT BKDW-510 CONTROL PANEL CASE BKDW-511 MAINTENANCE MANUAL Part 1 1st Edition (Revised 1) Serial No. 10001 and Higher (DVW-522) Serial No. 10001 and Higher (DVW-522P)
  • Page 2 ! 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.

  • Page 3: Table Of Contents

    Table of Contents Manual Structure Purpose of this manual ....................5 Contents ........................5 Relative manual ......................6 1. Installation 1-1. Operating Conditions ................... 1-1 1-2. Power Supply ....................1-1 1-2-1. Voltage and Power Requirements ..........1-1 1-2-2. Power Cord ................. 1-1 1-3.
  • Page 4 2-7. Removal/Installation of Lower Control Panel Assembly ......2-17 2-8. How to Take out the Cassette when the Tape is Slacking ......2-18 2-9. Cleaning when the Heads are Clogged ............2-19 2-9-1. Cleaning by Cleaning Tape ............2-19 2-9-2. Cleaning by Cleaning Cloth .............
  • Page 5 5-3. RF System Check Mode (C1: RF CHECK) ..........5-32 5-4. Others Check Mode (C4: OTHERS CHECK) .......... 5-34 6. Replacement of Plug-in Boards 6-1. General Information for Boards Replacement ..........6-1 6-1-1. Index for Board Replacement ............. 6-1 6-1-2. Plug-in Board Pulling Out/ Inserting ..........

  • Page 7: Manual Structure

    Manual Structure Purpose of this manual This manual is the maintenance manual of digital videocassette player DVW-522/ 522P. This manual describes the maintenance information of this unit, and replacement procedure of plug-in boards. Contents The following is a summary of all the sections for understanding the contents of this manual.

  • Page 8: Relative Manual

    • Maintenance Manual Part 2 (Not supplied with this unit.) This manual describes the information items (adjustments, board layouts, schematic diagrams, datailed parts list, etc.) that premise the service based on parts. If this manual is required, please contact to Sony’s service organization.

  • Page 9: Installation

    • Power consumption 150 VA (240 V), 105 W (100 V) 1-2-2. Power Cord • Length approx. 2.4 m • Plug 12.5 Live (brown) Live Live Neutral (blue) 74.5 Neutral 4.75 Neutral Safety earth Safety earth (green/yellow) Unit : mm Unit : mm For DVW-522P (EK) For DVW-522 (UC)

  • Page 10: Installation Space

    1-3. Installation Space 1-3. Installation Space Notes on installation place • The rear side must be at least 40 cm away from the walls for ventilation and maintenance. • Two cooling fans are fitted. If either the intake or exhaust becomes clogged of the fans stop, damage may result to the power unit etc.

  • Page 11: Supplied Accessories And Packing Materials List

    OPERATION MANUAL (F) (for DVW-522P) MAINTENANCE MANUAL PART1 4pcs 7-682-965-01 SCREW +PSW 4 x 16 Packing Materials Q’ty Part No. Description 2-990-242-01 HOLDER (B), PLUG (for DVW-522) 3-613-640-01 HOLDER (C), PLUG (for DVW-522P) 3-181-533-01 CUSHION (LOWER) 3-181-534-02 CUSHION (UPPER) 3-181-535-01 SPACER (A) 3-181-536-01...

  • Page 12: Rack Mounting

    1-5. Rack Mounting 1-5. Rack Mounting 3. Remove the four feet on the bottom plate. If the unit is mounted in the rack with the feet attached, The unit can be mounted in a 19-inch standard rack. they will contact the lower and the upper portions of the It is recommended to use the following kit.
  • Page 13 1-5. Rack Mounting 5. Remove the four screws on the right and left side panels. (Be careful not to lose these four screws.) B4x6 Spacer ‹Front view› B4x6 12.7 31.75 12.7 Removal of Screws on Left and Right Side Panels 31.75 12.7 31.75...

  • Page 14: Matching Connectors

    When external cables are connected to the connector on a connector panel during maintenance, the hardware listed below (or the equivalents) must be used. VTR Side Connector Matching Cable Connector/Cable Panel Indication Connector Sony Part No. BNC 75 Z, MALE VIDEO OUTPUT –––––– MONITOR OUTPUT XLR 3P, FEMALE...

  • Page 15: Signal Outputs

    1-7. Signal Outputs 1-7. Signal Outputs ‹Rear Panel› RF ADAPTOR VIDEO OUTPUT COMPOSITE VIDEO DC AUDIO (SUPER) MONITOR OUTPUT ~AC IN BREAKER CONTROL PANEL RS232C OUTPUT RF ADAPTOR VIDEO ..........RCA jack, 1.0 Vp-p, 75 Z, sync negative (for character superimpose) DC ............
  • Page 16 1-7. Signal Outputs CONTROL PANEL: 15-pin (female) RS232C: 25-pin (female) ‹external view› ‹external view› CONTROL PANEL RS232C Pin No. Signal Pin No. Signal KEY RX (–) FG; Frame Ground KEY RX (+) TXD; Transmitted Data (Output) RXD; Received Data (Input) REG +8 V RTS;...

  • Page 17: Switch/Shorting Land Settings On The Boards

    1-8. Switch/Shorting Land Settings on the Boards 1-8. Switch/Shorting Land Settings on the Boards Never change the settings of the factory use switches. APR-1 board S1550 S1554 S1551 S1553 S1555 S1552 CN120 CN119 APR-1 Board (A Side) APR-1 board, on-board shorting lands and resistor selection (Board suffix No. 16 and higher) Selecting output level Audio Channel Ref.
  • Page 18 1-8. Switch/Shorting Land Settings on the Boards Selecting fixed or variable MONITOR output level Ref. No. Audio Channel Selection Level Variable Level Fixed S1551-1 MONITOR L-CH S1551-2 MONITOR S1554-1 R-CH S1554-2 Factory Setting When the level variable is selected, the level is adjusted with the PHONES level control.
  • Page 19 1-8. Switch/Shorting Land Settings on the Boards 1-8. Switch/Shorting Land Settings on the Boards Never change the settings of the factory use switches. APR-1 board SL910 SL911 SL908 SL900 R940 R939 SL901 SL909 SL907 SL904 SL906 SL903 SL905 SL902 R1039 R1038 CN120 CN119...
  • Page 20 1-8. Switch/Shorting Land Settings on the Boards Selecting fixed or variable MONITOR output level Ref. No. Audio Channel Selection Level Variable Level Fixed SL900 MONITOR SHORT OPEN L-CH R939 NO MOUNT MOUNT MONITOR SL901 SHORT OPEN R-CH R940 NO MOUNT MOUNT Factory Setting When the level variable is selected, the level is adjusted with the...
  • Page 21 1-8. Switch/Shorting Land Settings on the Boards CUE-1 board S102 CN105 CUE-1 Board (A Side) CUE-1 board, on-board switch Switch No. Name Description Factory Setting S102-1 CUE/CH-2 AUDIO By coupling with RV901 on the CUE-1 board, adjust the CUE When the unit is S102-2 HEAD TUNE ADJ.
  • Page 22 1-8. Switch/Shorting Land Settings on the Boards SS-52 board S2100 S300 S301 S302 S700 S701 S2101 S100 S102 S303 CN124 CN123 CN122 SS-52 Board (A Side) SS-52 board, on-board switch Switch No. Name Description Factory Setting S100-1 SETUP MENU OFF (OPEN): Main menu OFF (OPEN) MODE ON (CLOSE): System menu...
  • Page 23 1-8. Switch/Shorting Land Settings on the Boards SS-52 board, on-board switch Switch No. Name Description Factory Setting S102 Never change the settings of S102 switch since each switch is set according to the characteristics. S102-1 ––––––– Undefined ––––––– S102-2 ––––––– Undefined –––––––...

  • Page 24: Search Dial Mode Switching

    1-9. Search Dial Mode Switching 1-9. Search Dial Mode Switching Prohibiting search dial pressing from switching the mode There are two kinds of operation to switch the search dial of this unit to jog mode or shuttle mode. Set the search dial of 1.
  • Page 25 1-9. Search Dial Mode Switching 5. Check that the shaft of the search dial is not seen in the Allowing search dial pressing to switch the mode round hole of the mode selection plate and then tighten the screw. 6. Perform the steps 1 to 3. 7.

  • Page 26: Installation Of Bkdw-510/511

    1-10. Installation of BKDW-510/511 1-10. Installation of BKDW-510/511 By installing a control panel extension kit (BKDW-510), the videocassette player can be controlled from a remote location (10 m). To use the lower control panel of the DVW series as a desk-type remote control unit, control panel case BKDW-511 is required.
  • Page 27 1-10. Installation of BKDW-510/511 Blank panel installation Assembling of remote control unit 1. Remove the lower control panel assembly. 1. Pass the connector at the end of the remote cable with a (Refer to Section 2-7.) 15-pin connector through the control panel case and 2.
  • Page 28 1-10. Installation of BKDW-510/511 4. Pull out the cushion block of the control panel case 8. Tighten the two screws of the metal plating shell and forward. connect the remote cable to the connector 5. Connect the harness of the control panel to the (CONTROL PANEL) on the connector panel.

  • Page 29: Setup Menu

    1-11. Setup Menu 1-11. Setup Menu The memory area of the INITIAL SETUP MENU of this unit comprises of three banks. Each bank contains identical ITEMs which can be independently set. For this reason, the VTR operation setups can be changed with the switchover of the banks. Some ITEMs have the several SUB-ITEMs.
  • Page 30 1-11. Setup Menu Various selector switches are provided on the system setup panel, and printed circuit board. Each mode can be changed by selecting these switches. Moreover, each mode can be also changed by the operation of the setup menu described later. The buttons used in modifying the setup are described below.
  • Page 31 1-11. Setup Menu Upper/Lower Control Panel !- SHUTTLE button != RESET button 1 MENU lamps 1,2,3 0 JOG button 2 Time counter display 9 VAR button POWER PHONES AUDIO MONITOR SELECT CHANNEL CONDITION CH-1 CH-2 CH-3 CH-4 DIGITAL MENU VITC SHUTTLE SHUTTLE JOG RESET...

  • Page 32: Setup Menu Items

    1-11. Setup Menu 1-11-1. Setup Menu Items The setup menu consists of a Main menu and System menu. The menu list is shown below. The setup menu content depends on the ROM version. For details, refer to 1-11-2. Check the ROM version with the maintenance mode. (Refer to Section 5.) Main menu ITEM-H00 SERIES : HOURS METER PARAMETER H01: OPERATION HOURS...

  • Page 33: Details Of The Setup Menu

    1-11. Setup Menu 1-11-2. Details of the Setup Menu The numbers enclosed in the under the DATA column indicate the factory preset settings. ITEM-H00 SERIES: HOURS METER PARAMETER ITEM No. TITLE DATA No. DISPLAY Description OPERATION No selection item The accumulated power ON time is displayed on the timer counter HOURS in 10-hour units.
  • Page 34 1-11. Setup Menu ITEM-000 SERIES: OPERATIONAL PARAMETER ITEM No. TITLE DATA No. DISPLAY Description CHARACTER PAL NTSC Select the horizontal display position of the characters such as time H-POSITION code superimposed on the output signal of the VIDEO OUTPUT-2 and RF ADAPTOR VIDEO connectors. Select hexadecimal “00”...
  • Page 35 1-11. Setup Menu ITEM No. TITLE DATA No. DISPLAY Description CHARACTER Select the vertical size of characters such as time code that are V-SIZE superimposed in the VIDEO OUTPUT-2 and RF ADAPTOR VIDEO connectors. 01: Standard size 02: Twice the standard size 03: Three times the standard size 04: Four times the standard size CONDITION...
  • Page 36 1-11. Setup Menu ITEM-700 SERIES: VIDEO CONTROL PARAMETER (for NTSC) DISPLAY Description ITEM No. TITLE DATA No. VIDEO SETUP This item sets the amount of the video setup that is added to the REFERENCE composite output signal. When the “MASTER” is selected to the ITEM OUTPUT LEVEL, the LEVEL amount of setup (in the range from 0.0% to 10.0%) is selected by SUB ITEM...
  • Page 37 1-11. Setup Menu ITEM-F00 SERIES : ADJUSTMENT USE ONLY The item below are not displayed on the normal operation to avoid the erroneous operation. To display the items below in the setup menu, perform the following preparation and operation. Preparation Modify the setting in the customize menu mode.

  • Page 38: Setting Check Sheet

    1-11. Setup Menu 1-11-3. Setting Check Sheet SETUP MENU ITEM-H00 SERIES: HOURS METER PARAMETER ITEM Factory Setting Bank 1 Bank 3 Bank 2 H01: OPERATION HOURS ––––––– H02: DRUM RUNNING HOURS ––––––– H03: TAPE RUNNING HOURS ––––––– H04: THREADING COUNTER –––––––...
  • Page 39 1-11. Setup Menu SWITCH AND SHORTING LAND ON BOARD Board Switch/Shorting Land Factory Setting Setting APR-1 Output Level MONITOR L CH +4 dBm (600 Z) MONITOR R CH +4 dBm (600 Z) Output Headroom MONITOR L CH –20 dB MONITOR R CH –20 dB MONITOR Output Level MONITOR L CH...

  • Page 41: Service Overview

    Section 2 Service Overview 2-1. Notes on Power Supply Block 2-2. Removal/Installation of Cabinet 2-1-1. Warning on Primary Circuit and 2-2-1. Cabinet Removal/Installation Electric Shock The power supply block consists of the AC-139 board and Always switch off the POWER before removing and primary peripheral components.
  • Page 42 2-2. Removal/Installation of Cabinet Upper Lid Loosen three fixing screws, and remove the upper lid by moving in the direction indicated by the arrow. Left Side Panel 1. R e m o v e f o u r s c r e w s , a n d remove the handle.

  • Page 43: Removal/Installation Of Plate Md

    2-2. Removal/Installation of Cabinet 2-2-2. Removal/Installation of Plate MD Removal Installation 1. Remove the upper lid. (Refer to Section 2-2-1.) 4. Insert the plate MD into the clearance shown in the 2. Slide the knobs of the plate MD each in the direction figure.

  • Page 44: Connector Panel Removal/Installation

    2-2. Removal/Installation of Cabinet 2-2-3. Connector Panel Removal/Installation 2-2-4. Power Supply Panel Removal/ Installation 1. Turn off the POWER. 2. Remove six screws indicated → at the top and bottom 1. Turn off the POWER. on the connector panel. 2. Remove two screws, and open the power supply panel. Screw (BVTT3x6) Connector panel...

  • Page 45: Cassette Compartment Removal/Installation

    2-3. Cassette Compartment Removal/Installation 2-3. Cassette Compartment Removal/ Installation 7. Remove the four legs of the cassette compartment for Removal fixing the position by lifting the cassette compartment slightly and straight with A portions (two portions) 1. Press the EJECT button with the power on. 2.
  • Page 46 2-3. Cassette Compartment Removal/Installation Installation 10. Set the harness of the connector (CN930) disconnected in step 6 so it is not put between chassis. 11. Install the cassette compartment inserting slantingly in the direction as shown in the figure. 12. Insert the four legs of the cassette compartment for fixing the position into the four holes of the mechanical chassis for fixing the position by pressing the C portions (two portions) as shown in the figure.
  • Page 47 2-4-1. Printed Circuit Board Locations 2-4. Locations of Main Part 2-4-1. Printed Circuit Board Locations INDEX AC-139 ....3 APR-1 ....9 CCM-15 ....@' CL-29 ....#\ CP-279 ....@\ CP-280 ....@] CP-282 ....@[ CUE-1 ....2 DP-176 ....
  • Page 48 2-4-1. Printed Circuit Board Locations INDEX AC-139 ....3 APR-1 ....9 CCM-15 ....@' CL-29 ....#\ CP-279 ....@\ CP-280 ....@] CP-282 ....@[ CUE-1 ....2 Rear DP-176 ....@= DPR-36 ....!/ DR-200 ....!] DT-34 ....
  • Page 49 2-4-1. Printed Circuit Board Locations <Front view> <Rear view>...
  • Page 50 2-4-1. Printed Circuit Board Locations <Top view> <Top view of casssette compartment> 2-10...

  • Page 51: Main Mechanical Part Locations

    2-4-2. Main Mechanical Part Locations 2-4-2. Main Mechanical Part Locations <Top view> INDEX 1 Audio/TC head !] T worm wheel 2 TG-3 tape guide !\ Worm gear 3 Head drum !; Drive gear 4 Threading ring !' S worm wheel 5 T tension regulator arm !, S brake assembly 6 CTL head...

  • Page 52: Function And Location Of Sensors

    2-4-3. Function and Location of Sensors 2-4-3. Function and Location of Sensors <Top view> UPPER LOWER <Top view of cassette compartment> 2-12...
  • Page 53 2-4-3. Function and Location of Sensors 1 Threading motor rotation sensor 9 T reel table rotation sensor The threading motor rotation sensor detects the rotation This sensor detects the rotation of the take-up reel speed of the threading motor. table. The FG output signal of this detection sensor is input to The FG output signal of this sensor is input to the servo the servo circuit to control the threading speed so that...

  • Page 54: Led Indicator Infomation On Boards

    2-5. LED Indicator Infomation on Boards 2-5. LED Indicator Infomation on Boards <Top view> SS-52 Board D301 D300 D601 D800 D2109 D711 APR-1 Board SS-52 Board LED No. Name Color Description Normal State D300 ––––– ––––– Unused ––––– D301 SYS 1 Amber Blinks during SYS 1 V25 CPU normal operation.
  • Page 55 2-5. LED Indicator Infomation on Boards <Blinking Pattern of D711 on SS-52 Board> Nomal State lighting 1.1 to 1.5 sec. 30 msec. ROM Checksum error lighting scores msec. 0.1 sec. RAM error lighting scores msec. 0.1 sec. 0.5 sec. 0.5 sec. Repeat System Control Dual Port RAM error lighting...

  • Page 56: How To Pull Out/Push In The Lower Control Panel

    2-6. How to Pull out/Push in the Lower Control Panel 2-6. How to Pull out/Push in the Lower Control Panel Lift the lower control panel. The panel can be moves maximum 90 degrees. The lower control panel can be tilted up to 90 degrees by approximately 15 degree step.

  • Page 57: Removal/Installation Of Lower Control Panel Assembly

    2-7. Removal/Installation of Lower Control Panel Assembly 2-7. Removal/Installation of Lower Control Panel Assembly Removal 1. Fix a lower control panel assembly at 90 degrees. (Refer to Section 2-6.) 2. Disconnect the connector (CN580) on the system set- up panel. 3.

  • Page 58: How To Take Out The Cassette When The Tape Is Slacking

    2-8. How to Take out the Cassette When the Tape is Slacking 2-8. How to Take out the Cassette when the 7. Turn the yellow pulley of the cassette compartment Tape is Slacking motor shown in the figure clockwise until the cassette tape is ejected completely.

  • Page 59: Cleaning When The Heads Are Clogged

    2-9. Cleaning When the Heads are Clogged 2-9. Cleaning when the Heads are 2-9-2. Cleaning by Cleaning Cloth Clogged Caution If the video heads are clogged, clean the heads as the following procedure. • Turn the power off before cleaning. If the video heads are clogged after cleaning by cleaning •...
  • Page 60 2-9. Cleaning When the Heads are Clogged 6. Hold the cleaning cloth moistened with cleaning fluid Procedures keeping it from becoming wrinkled. And press the 1. Turn the power off. cleaning cloth slightly against the rotary heads. 2. Remove the upper lid. 7.

  • Page 61: Fixture And Measuring Equipment For Adjustment

    2-10. Fixture and Measuring Equipment for Adjustment 2-10. Fixture and Measuring Equipment for Adjustment 2-10-1. Fixture Fig. No. Part No. Description Inscription No. For use J-6269-800-A Extension Board (L), EX-365 ––––– Large-sized printed circuit board for check and adjustment J-6269-810-A Extension Board (S), EX-377 –––––...

  • Page 62: Isr

    2-11. ISR 2-11. ISR ISR: Stands for Interactive Status Reporting system. The system that can do the diagnosis or operation monitor for each broadcast products from PC by using BZI- 500/501(ISR Software). CONNECTION INFORMATION Refer to the following information in preparing the cables. 1.
  • Page 63 2-11. ISR 2. In case of the connection with PC via LAN (Terminal Server: 6 pin port). * The connection will change according to the maker of Terminal Server. Terminal Server RJ12(Modular type) DB25 3. In case of the connection with PC via MODEM. MODEM DB25 DB25...

  • Page 65: Error Messages

    Section 3 Error Messages 3-1. Error Message This unit features self-diagnostics. When trouble is detected, an error code is displayed immediately in the time counter display on the lower control panel, an error code and message are superimposed on the video monitor connected to the VIDEO OUTPUT COMPOSITE 2 connector and the RF ADAPTOR VIDEO connector.
  • Page 66 3-1. Error Message (Continued) Code Error message Description Detection THREADING TROUBLE It is detected that threading cannot be done, Detected when the tape top sensor is and then tape protection is done. acted during threading after the short FF mode is automatically entered three times.
  • Page 67 3-1. Error Message (Continued) Code Error message Description Detection NV-RAM TROUBLE The operational defect of the NV-RAM (setup menu data) on the SWC-19 board or sub error message SS-52 board is detected. menu-1 Then, reset the data in the NV-RAM to the menu-2 condition at exfactory for menu-1, 2, 3, and menu-3...

  • Page 69: Periodic Maintenance And Inspection

    Section 4 Periodic Maintenance and Inspection 4-1. Periodic Check To make the most of the functions, fully realize performance of the unit, lengthen the life of the unit and tape, a periodic check is recommended. 4-1-1. Hours Meter This unit can display an hours meter on the time counter display of the upper control panel or on the monitor connected to this unit.

  • Page 70: Periodic Check List

    Menu Inspection Hours (h) Replacement Parts Part Name Part No. Q'ty 1000 2000 3000 4000 5000 6000 Drum Block ↓ ↓ Inner Drum Assembly DJR-07A-R: DVW-522 A-8260-748-D DJR-08A-R: DVW-522P A-8260-749-D ↓ ↓ Brush/Slip Ring Assembly – – – – SR9 ASSY (RP), BRUSH...
  • Page 71 4-1. Periodic Check To maintain the steady performance, these are recommended to clean the tape running system and autmatic adjustment of RF system every the following hours as a guide. • every 50 hours (H02) : Cleaning by cleaning tape (Refer to Section 2-9-1.) •...
  • Page 72 4-1. Periodic Check Replace the parts shown in the table below periodically when the threading/unthreading operation is repeated frequently. Item Menu Inspection Time Replacement Parts Part Name Part No. Q'ty Brake Solenoid PLUNGER SOLENOID 1-454-417-41 S Tension Regulator Assembly REGULATOR ASSY, TENSION A-8267-795-C T Tension Regulator Assembly T-TEN ASSY...
  • Page 73 4-1. Periodic Check Procedure Remarks (Refer to Volume 1 of MAINTENANCE MANUAL Part 2) Refer to Section 2-3-2. Refer to Section 2-3-11. Refer to Section 2-3-12. Refer to Section 2-3-13. Refer to Section 2-3-8. Refer to Section 2-3-10. Refer to Section 2-3-9. Refer to Section 5-1.

  • Page 74: Cleaning

    4-2. Cleaning 4-2. Cleaning To make the most of the functions, fully realize the performance of this unit, and to lengthen the life of the unit and tape, clean the components often. 4-2-1. General Information for Cleaning 1. Cautions • Turn the power off before cleaning. •...

  • Page 75: Rotary Heads Cleaning

    4-2. Cleaning 4-2-2. Rotary Heads Cleaning Caution The rotary heads are the part that can be damaged easily. Be careful not to damage the rotary heads during cleaning. Tools • Cleaning cloth : 3-184-527-01 • Cleaning fluid : 9-919-573-01 Do not use a cotton swab to clean the rotary heads. Procedures 1.

  • Page 76: Upper Drum's Tape Running Surface Cleaning

    4-2. Cleaning 4-2-3. Upper Drum's Tape Running Surface Cleaning Caution Be careful not to damage the upper drum during cleaning. Pay careful attention when cleaning the edge portion below the upper drum because it is located near the rotary heads. Tools •...

  • Page 77: Lower Drum's Tape Running Surface And Lead Surface Cleaning

    4-2. Cleaning 4-2-4. Lower Drum's Tape Running Surface and Lead Surface Cleaning Caution Be careful not to damage the lower drum (specially lead surface) during cleaning. Pay careful attention when cleaning the edge portion above the lower drum because it is located near the rotary heads. Tools •...

  • Page 78: Stationary Heads Cleaning

    4-2. Cleaning 4-2-5. Stationary Heads Cleaning Caution Be careful not to damage the head surface when cleaning the stationary heads. Tools • Cleaning cloth: 3-184-527-01 • Cleaning fluid: 9-919-573-01 Procedures 1. Clean the tape running surfaces of the audio/TC head and CTL head in the vertical direction with a cleaning cloth moistened with a cleaning fluid.

  • Page 79: Tape Running System And Tape Cleaner Cleaning

    4-2. Cleaning 4-2-6. Tape Running System and Tape Cleaner Cleaning Warning The tape cleaner has a sharp edge. Do not touch the edge with bare hands. Pay careful attention when cleaning the tape cleaner. Tools • Cleaning cloth: 3-184-527-01 • Cleaning fluid: 9-919-573-01 Procedures 1.

  • Page 80: Fan Motor Cleaning

    4-2. Cleaning 4-2-7. Fan Motor Cleaning Caution The temperature in the unit increases when dust attaches to the fan motor and when the air flow is disturbed. This may badly influence the performance and life of the unit. Clean the fan motor on the rear panel periodically because it accumulates dust easily.

  • Page 81: Cassette Compartment Cleaning

    4-2. Cleaning 4-2-8. Cassette Compartment Cleaning Cautions • Be careful not to apply an excessive force to the compartment block when cleaning the cassette compartment. • Do not clean the cassette door with alcohol. This may cause a crack. Tools •...

  • Page 83: Maintenance Mode

    Section 5 Maintenance Mode 5-1. Outline This unit has the maintenance mode required for maintenance and troubleshooting. The maintenance mode is as described below. Each mode consists of some menus and submenus. (For the menu tree, refer to pages 5-6, 5-7.) This section explains CHECK modes (C0, C1, C4).
  • Page 84 5-1. Outline The buttons etc. related to the maintenance mode are as follows: 1 Time counter (Lower control panel) The menu number is displayed in the blinking/lighting state during menu assignment. For the manual adjustment, data is displayed in the blinking state. Be sure to use a video monitor because the information that can be displayed on the time counter is restricted in the maintenance mode.
  • Page 85 5-1. Outline 1 Time counter 4 CTL button 5 SHUTTLE button 6 JOG button SHUTTLE RESET REVERSE FORWARD SET UP COUNTER MENU U-BIT STNDBY SERVO EJECT PLAY STOP 3 SET button 2 MENU button 7 Search dial Lower Control Panel !/ S100-7 : MAINTENANCE MODE ACCESS ENABLE switch 9 S301 : DIAG/ ADJUST 2 switch(ADJ–)

  • Page 86: Operation To The Maintenance Mode

    5-1. Outline 5-1-1. Operation to the Maintenance Mode Activating the maintenance mode (1) Confirm that the video monitor is connected to the VIDEO OUTPUT COMPOSITE 2 connector or RF ADAPTOR VIDEO connector. (2) Press the 8 S300 (SS board). (3) The mode screen in the maintenance mode is displayed on the monitor screen. Terminating the maintenance mode (1) Press the 2 MENU button or 9 S301 (SS board) several times to display the mode screen.
  • Page 87 5-1. Outline 1 Time counter 4 CTL button 5 SHUTTLE button 6 JOG button SHUTTLE RESET REVERSE FORWARD SET UP COUNTER MENU U-BIT STNDBY SERVO EJECT PLAY STOP 3 SET button 2 MENU button 7 Search dial Lower Control Panel !/ S100-7 : MAINTENANCE MODE ACCESS ENABLE switch 9 S301 : DIAG/ ADJUST 2 switch(ADJ–)

  • Page 88: Menu Tree

    5-1. Outline 5-1-2. Menu Tree MAINTENANCE MODE C0:SERVO/DT CHECK C00-04:SERVO CHECK C00:INPUT CHECK C000:CASSETTE SW (Refer to section 5-2.) (Refer to section 5-2-1.) C001:CASSETTE COMP. SW C002:TOP/END SENSOR C003:DEW SENSOR C01:MOTOR CHECK C010:S REEL MOTOR (Refer to section 5-2-2.) C011:T REEL MOTOR C012:THREADING MOTOR C013:CASSETTE COMP.
  • Page 89 5-1. Outline A0:SERVO/DT ADJUST A00-01:SERVO ADJUST A000:A001-008 ADJ. (Refer to the Volume 1 of the A001:S REEL FG DUTY Maintenance Manual Part 2) A002:T REEL FG DUTY A003:CAPSTAN FG DUTY A004:S REEL OFFSET/FRICTION A005:T REEL OFFSET/FRICTION A006:S REEL TORQUE A007:T REEL TORQUE A008:S/T TENSION OFFSET A010:CAPSTAN FREE SPEED A011:RF SWITCHING POS.

  • Page 90: Servo/Dt System Check Mode (C0: Servo/Dt Check)

    5-2. Servo/DT System Check Mode 5-2. Servo/DT System Check Mode (C0: SERVO/DT CHECK) This mode checks the servo system or DT system automatically or semiautomatically. For how to activate and terminate the maintenance mode, refer to page 5-4. The “C0: SERVO/DT CHECK” consists of the following modes. MAINTENANCE MODE C00-04 : SERVO CHECK : DIGITAL DT CHECK...
  • Page 91 5-2. Servo/DT System Check Mode (This check is initiated.) SERVO CHECK REEL/CAPSTAN MOTOR & FG CHECK S REEL FG/MOTOR CHECK CHECKING..C03? MENU Screen during check (Refer to section 5-2-4.)

  • Page 92: Servo System Check 1 (C00: Input Check)

    5-2. Servo/DT System Check Mode 5-2-1. Servo System Check 1 (C00: INPUT CHECK) This section describes the “C00: INPUT CHECK” mode. SERVO CHECK SERVO CHECK *C0:SERVO/DT CHECK INPUT CHECK *C00:INPUT CHECK C01:MOTOR CHECK *C000:CASSETTE SW MENU C02:PLUNGER SOL. CHECK C001:CASSTE COMP. SW C03:REEL/CAPSTAN MOTOR C002:T REEL BRAKE &...
  • Page 93 5-2. Servo/DT System Check Mode a) C000: CASSETTE SW This mode checks the functions of the cassette tab sensors (switches). SERVO CHECK INPUT CHECK Confirm that lowest digit “0” of the corresponding switch number on the monitor C000:CASSETTE SW screen changes to “1” when switches/sensors 1 through 6 in the figure below 1:REEL HUB 2:METAL/OX 3:THICKNESS 4:SPARE...
  • Page 94 5-2. Servo/DT System Check Mode b) C001: CASSETTE COMP. SW This mode checks the functions of the sensors (switches) in the compartment SERVO CHECK block. INPUT CHECK C001:CASSETTE COMP. SW Confirm that the corresponding switch number on the monitor screen changes to SW1: CASSETTE IN SW 1 SW2: CASSETTE IN SW 2 “...
  • Page 95 5-2. Servo/DT System Check Mode Push the cassette window up manually. SW3: L cassette detection switch SW1: Cassette-in switch 1 SW2: Cassette-in switch 2 [Cassette-in sensor (L)] (Cassette size sensor) [Cassette-in sensor (R)] Switch Position in Compartment Block Rear Front Cassette size sensor Cassette-in sensor (L) Cassette-in sensor (R)
  • Page 96 5-2. Servo/DT System Check Mode c) C002: TOP/END SENSOR This mode checks the function of the tape top and end sensors. SERVO CHECK INPUT CHECK Confirm that the “OFF” display on the monitor screen changes to “ON !” when a C002:TOP/END SENSOR screwdriver is brought near sensors 1 and 2 in the figure below.
  • Page 97 5-2. Servo/DT System Check Mode d) C003: DEW SENSOR This mode checks the function of the DEW (condensation detection) sensor. SERVO CHECK INPUT CHECK (1) Confirm that the “DRY” display on the monitor screen changes to “WET !” C003:DEW SENSOR when the sensor is slightly touched with a cotton swab moistened with water.

  • Page 98: Servo System Check 2 (C01: Motor Check)

    5-2. Servo/DT System Check Mode 5-2-2. Servo System Check 2 (C01: MOTOR CHECK) This section describes the “C01: MOTOR CHECK” mode. SERVO CHECK SERVO CHECK *C0:SERVO/DT CHECK MOTOR CHECK C00:INPUT CHECK *C01:MOTOR CHECK *C010:S REEL MOTOR MENU C02:PLUNGER SOL. CHECK C011:T REEL MOTOR C03:REEL/CAPSTAN MOTOR C012:THREADING MOTOR...
  • Page 99 5-2. Servo/DT System Check Mode C014: CAPSTAN MOTOR SERVO CHECK MOTOR CHECK Checks the rotation direction of the capstan motor. C014:CAPSTAN MOTOR For more details, refer to page 5-21. C014 MENU S300(SS-52): CHECK S301(SS-52): RETURN C015: DRUM MOTOR SERVO CHECK MOTOR CHECK Checks the rotation of the drum motor.
  • Page 100 5-2. Servo/DT System Check Mode a) C010: S REEL MOTOR This mode checks the rotation of the S reel motor. SERVO CHECK MOTOR CHECK C010:S REEL MOTOR Turn the S reel motor using a search dial (JOG mode). Dial Rotation direction of the S reel motor FORWARD (2) TURN JOG DIAL IN JOG MODE...
  • Page 101 5-2. Servo/DT System Check Mode c) C012: THREADING MOTOR This mode checks the rotation of the threading motor, and the functions of the SERVO CHECK thread end sensor and unthread end sensor. MOTOR CHECK C012:THREADING MOTOR Turn the threading motor using a search dial (JOG mode). As a result, the thread *** UNTHREAD END *** ring moves as shown in the table below.
  • Page 102 5-2. Servo/DT System Check Mode d) C013: CASSETTE COMP. This mode checks the operation of the cassette compartment motor, and the SERVO CHECK function of the cassette down sensor. MOTOR CHECK C013:CASSETTE COMP. (1) Press the SET button (or switch S300 on the SS board). Confirm that the compartment block goes down.
  • Page 103 5-2. Servo/DT System Check Mode e) C014: CAPSTAN MOTOR This mode checks the rotation direction of the capstan motor. SERVO CHECK MOTOR CHECK C014:CAPSTAN MOTOR (1) Press the SET button (or switch S300 on the SS board). Confirm that the capstan motor rotates in the forward direction (3) and that the “FORWARD ..
  • Page 104 5-2. Servo/DT System Check Mode g) C016: REEL SHIFT MOTOR This mode checks the operation of the reel shift motor, and the function of the SERVO CHECK reel position sensor. MOTOR CHECK C016:REEL SHIFT MOTOR Confirm that the reel table moves from the S position to the L position (from the S-POSITION L position to the S position) when the SET button (or switch S300 on the SS board) is pressed.

  • Page 105: Servo System Check 3 (C02: Plunger Solenoid Check)

    5-2. Servo/DT System Check Mode 5-2-3. Servo System Check 3 (C02: PLUNGER SOLENOID CHECK) This section describes the “C02: PLUNGER SOLENOID CHECK” mode. SERVO CHECK SERVO CHECK *C0:SERVO/DT CHECK PLUNGER SOLENOID CHECK C00:INPUT CHECK *C020:PINCH ROLLER MENU C01:MOTOR CHECK C021:S REEL BRAKE *C02:PLUNGER SOL.
  • Page 106 5-2. Servo/DT System Check Mode a) C020: PINCH ROLLER This mode checks the operation of the pinch roller solenoid. SERVO CHECK PLUNGER SOLENOID CHECK C020:PINCH ROLLER (1) Press the SET button (or switch S300 on the SS board). Confirm by the generation of a sound that the pinch solenoid is turned on. (2) Press the MENU button (or switch S301 on the SS board).
  • Page 107 5-2. Servo/DT System Check Mode b) C021: S REEL BRAKE This mode checks the operation of the S reel brake solenoid. SERVO CHECK PLUNGER SOLENOID CHECK C021:S REEL BRAKE (1) Press the SET button (or switch S300 on the SS board). Confirm by the generation of a sound that the S reel brake solenoid is turned on.
  • Page 108 5-2. Servo/DT System Check Mode d) C023: CLEANING ROLLER This mode checks the operation of the cleaning roller solenoid. SERVO CHECK PLUNGER SOLENOID CHECK C023:CLEANING ROLLER (1) Press the SET button (or switch S300 on the SS board). Confirm that the cleaning roller solenoid is activated, the cleaning roller touches the drum, and it is immediately released from the drum.

  • Page 109: Servo System Check 4 (C03: Reel/Capstan Motor & Fg Check)

    5-2. Servo/DT System Check Mode 5-2-4. Servo System Check 4 (C03: REEL/CAPSTAN MOTOR & FG CHECK) This section describes the “C03: REEL/CAPSTAN MOTOR & FG CHECK” mode. SERVO CHECK *C0:SERVO/DT CHECK C00:INPUT CHECK C01:MOTOR CHECK MENU C02:PLUNGER SOL. CHECK *C03:REEL/CAPSTAN MOTOR &...
  • Page 110 5-2. Servo/DT System Check Mode a) S REEL FG/MOTOR CHECK Checks the duty cycle of the S reel FG. In case of NG; Check the S reel motor (C010: S REEL MOTOR). If no abnormality is found, adjust the duty cycle of the S reel FG (A001: S REEL FG DUTY). b) T REEL FG/MOTOR CHECK Checks the duty cycle of the T reel FG.

  • Page 111: Digital Dt System Check (C05: Digital Dt Check)

    5-2. Servo/DT System Check Mode 5-2-5. Digital DT System Check (C05: DIGITAL DT CHECK) This section describes the “C05: DIGITAL DT CHECK” mode. DIGITAL DT CHECK *C0:SERVO/DT CHECK *C050:DT DRIVER CHECK C051:SG LOOP CHECK MENU *C05:DIGITAL DT CHECK MENU C050: DT DRIVER CHECK DIGITAL DT CHECK C050:DT DRIVER CHECK Checks the bimorph drive control circuit by the...
  • Page 112 5-2. Servo/DT System Check Mode a) C050: DT DRIVER CHECK This mode checks the bimorph drive control circuit (on the SS board) by the DIGITAL DT CHECK loopback in a bimorph drive amplifier (on the DT-34B board). C050:DT DRIVER CHECK *No operation (1) Set the “*”...
  • Page 113 5-2. Servo/DT System Check Mode b) C051: SG LOOP CHECK This mode checks the feedback loop of the strain gauge. DIGITAL DT CHECK C051:SG LOOP CHECK (1) Set the “*” mark to “Start auto check” using a search dial (JOG mode). *No operation Start auto check (1) DIAL...

  • Page 114: Rf System Check Mode (C1: Rf Check)

    5-3. RF System Check Mode 5-3. RF System Check Mode (C1: RF CHECK) This mode can check the RF system. For how to activate and terminate the maintenance mode, refer to page 5-4. RF CHECK MODE MAINTENANCE MODE C0 : SERVO/DT CHECK *C10:CHANNEL CONDITION...
  • Page 115 5-3. RF System Check Mode a) C10: CHANNEL CONDITION This mode can display the error condition in all the video and audio channels RF CHECK MODE during playback in units of three stages on the monitor screen. C10:CHANNEL CONDITION Grn Yel Red The channel condition indicator on the upper control panel indicates the error VIDEO Ach VIDEO Bch...

  • Page 116: Others Check Mode (C4: Others Check)

    A2 : AUDIO/VIDEO ADJUST MENU C40: ROM VERSION OTHERS CHECK MODE Displays the ROM version that exists in this unit. C40:ROM VERSION DVW-522 For more details, refer to page 5-36. SYS1 V1.00 SYS2 V1.00 V1.00 V1.00 The version value is one example.
  • Page 117 5-4. Others Check Mode C45: MEMORY CHECK OTHERS CHECK MODE C45:MEMORY CHECK *0000 : 24 07 00 F0 0004 : 24 07 00 F0 0008 : 24 07 00 F0 This menu is intended for factory use. 000C : 24 07 00 F0 Never change the data.
  • Page 118 C40: ROM VERSION This mode displays the version of the ROM (including the ROM in a OTHERS CHECK MODE microprocessor) that exists in this unit. C40:ROM VERSION DVW-522 The display description is shown below. SYS1 V1.00 SYS2 V1.00 V1.00 V1.00...
  • Page 119 5-4. Others Check Mode c) C42: RS-232C STATUS ISR use OTHERS CHECK MODE C42:RS-232C STATUS Displays the RS-232C port status, and sets the baud rate and flow control requisite for the ISR. *BAUD RATE 19.2K FLOW CONTROL Setting (Baud rate or Flow control) ID [DigiBeta-1 PE 00 FE 00...
  • Page 120 5-4. Others Check Mode d) C46: HOUR METER This mode can display and reset the resetable hours meter and thread counter of OTHERS CHECK MODE C46:HOUR METER this unit. *DRUM HOURS TAPE HOURS Display description THREAD COUNTER 1234 DRUM HOURS : Drum rotation time (H12) TAPE HOURS : Tape running time (H13)

  • Page 121: Replacement Of Plug-In Boards

    Section 6 Replacement of Plug-in Boards 6-1. General Information for Boards Replacement For how to activate and terminate the maintenance mode, refer to Section 5-1-1. 6-1-1. Index for Board Replacement [ Index ] Board Electrical Alignment Location APR-1 Section 6-3. CUE-1 Section 6-5.

  • Page 122: Plug-In Board Pulling Out/ Inserting

    6-1. General Information for Boards Replacement 6-1-2. Plug-in Board Pulling Out/ Inserting Always switch off the power before removing or installing 2. Pull up the eject levers on the board in the direction of the plug-in board. the arrows when pulling out the board from the connector.
  • Page 123 6-1. General Information for Boards Replacement Inserting 4. Connect the disconnected harness. 5. Insert the board after pushing down the eject levers as shown in the figure. Eject levers 6. Insert the protrusion of the board retainer (L) or (S) into the square hole, and tighten the screw.

  • Page 124: Adjustment After Vpr-1 Board Replacement

    6-2. Adjustment after VPR-1 board replacement 6-2. Adjustment after VPR-1 Board Replacement 6-2-1. Video Output Level Adjustment Preparation STEP 2 1. Connect the waveform monitor to COMPOSITE 2 On the set-up menu ITEM 713, set as follows (for NTSC): OUT connector. ITEM 713: VIDEO SETUP REFERENCE LEVEL 2.

  • Page 125: 27 Mhz Freq Adjustment

    6-2. Adjustment after VPR-1 board replacement 6-2-2. 27 MHz FREQ Adjustment 6-2-3. PB Clock Phase Setting Procedures Procedures STEP 1 STEP 1 1. Connect the frequency counter to TP1003 on the 1. On the menu of maintenance mode, set as follows: VPR-1 board.

  • Page 126: Adjustment After Apr-1 Board Replacement

    6-3. Adjustment after APR-1 board replacement 6-3. Adjustment after APR-1 Board Replacement 6-3-1. CUE Monitor Output Level Adjustment Tools Measuring equipment: Audio analyzer Procedures STEP 1 1. Connect the audio analyzer to MONITOR OUTPUT L/R. 2. Select “CUE” at the “MONITOR SELECT L/R”. 3.

  • Page 127: Adjustment After Eq-45 Board Replacement

    6-4. Adjustment after EQ-45 board replacement 6-4. Adjustment after EQ-45 Board STEP 2 Replacement 1. Connect the oscilloscope to TP104 and TP523 on the EQ-45. 6-4-1. ADV Envelope Level Adjustment 2. Play back the alignment tape ZR5-1/1P. 3. On the menu of maintenance mode, set as follows: Ajust at Bch LEVEL.

  • Page 128: Pll Adjustment

    6-4. Adjustment after EQ-45 board replacement 6-4-2. PLL Adjustment Preparation RF ADJUST MODE A10:A11-A17 ADJUST Alignment tape ZR5-1/1P rewound in advance. Set alignment tape and push SET button. ZR5-1 : for NTSC ZR5-1P : for PAL Procedures STEP 1 (2) Insert alignment tape 1.

  • Page 129: Adjustment After Cue-1 Board Replacement

    6-5. Adjustment after CUE-1 board replacement 6-5. Adjustment after CUE-1 Board Replacement 6-5-1. CUE PB Frequency Response Adjustment Tools Measuring equipment: Audio analyaer Procedures STEP 1 1. Select “CUE” at the “MONITOR SELECT L/R”. 2. Play back the 1 kHz, 3 kHz, 7 kHz, 10 kHz, 12 kHz and 90 Hz (–20 VU) signal portions (1:30-4:55) of the alignment tape ZR5-1/1P.

  • Page 130: Cue Pb Level Adjustment

    6-5. Adjustment after CUE-1 board replacement 6-5-2. CUE PB Level Adjustment STEP 2 Tools 1. Disconnect the shorting clip. 2. Play back the 1 kHz, 0 VU signal portion (00:00 - Measuring equipment: Audio analyaer 01:25) of the alignment tape ZR5-1/1P. 3.

  • Page 131: Adjustment After Ss-52 Board Replacement

    6-6. Adjustment after SS-52 board replacement 6-6. Adjustment after SS-52 Board Replacement 6-6-1. Drum Servo System Adjustment Preparation SERVO ADJUST A011:RF SWITCHING POS. Alignment tape ZR2-1/1P on which the beginning of the AUTO time code is beforehand located in 00:25:00:00 (50% FLAT *MANUAL FIELD) is required.

  • Page 132: Digital Dt System Adjustment

    6-6. Adjustment after SS-52 board replacement 6-6-2. Digital DT System Adjustment Procedures DIGITAL DT ADJUST A021:DRIVE GAIN MODE : STILL STEP 1 *No operation 1. On the menu of maintenance mode, set as follows: Start auto adjust A0: SERVO/DT ADJUST A02: DIGITAL DT ADJUST A021: DRIVE GAIN 2.
  • Page 133 6-6. Adjustment after SS-52 board replacement STEP 2 DIGITAL DT ADJUST A022:HEAD OFFSET LEVEL 1. A022: HEAD OFFSET LEVEL MODE : PLAY 2. Insert alignment tape ZR5-1/1P into this unit. *No operation 3. Set the “*” mark to Start auto adjust using a Start auto adjust search dial (JOG mode).

  • Page 135: Block Diagrams

    Section 7 Block Diagrams 7-1. Circuit Function of Printed Circuit Board Board Name Circuit Function Board Name Circuit Function (Part No.) (Part No.) VPR-1 Video signal processor, D/A, Reference clock generator, Composite encoder CP-282 Rear panel connector board (RF adaptor) (A-8275-911-A: for PAL) AC-139 AC connector board with breaker...

  • Page 136: Overall

    OVERALL (1/4) OVERALL (1/4) 7-2. Overall Signal Processing System OVERALL (1/4) DVW-522/522P...
  • Page 137 OVERALL (2/4) OVERALL (2/4) Signal Processing System OVERALL (2/4) DVW-522/522P...
  • Page 138 OVERALL (3/4) OVERALL (3/4) Control System OVERALL (3/4) SS-52B Board Circuit to Other Boards DVW-522/522P...
  • Page 139 OVERALL (4/4) OVERALL (4/4) Control System OVERALL (4/4) SS-52B Board Circuit to Other Boards DVW-522/522P...
  • Page 141 The material contained in this manual consists of and all other exposed metal parts for AC leakage. information that is the property of Sony Corporation and Check leakage as described below. is intended solely for use by the purchasers of the equipment described in this manual.
  • Page 142 Printed in Japan Sony Corporation DVW-522/522P (UC/EK) E 2000. 2 08 B&P Company 3-188-743-02 ©1995...

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