User manual FOSTEX D824 - SERVICE MANUAL

Service Manual Model & MODEL 8345 TC/SYNC CARD MODEL 5042 / 5043 BALANCE I/O CARD MODEL 8350 AES/EBU CARD 16TRACK DIGITAL RECORDER 8TRACK DIGITAL RECORDER CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU' AU FOND. The lightening flash with arrowhead symbol, within an equilateral triangle, 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. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. "WARNING" "TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE." SAFETY INSTRUCTIONS 1. 2. 3. 4. 5. Read instructions - All the safety and operating instructions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future reference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instructions - All operating and use instructions should be followed. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by the manufacturer. 9. Heat - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance. Grounding or Polarization - The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. Cleaning - The appliance should be cleaned only as recommended by the manufacturer. Nonuse Periods - The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. Damage requiring Service - The appliance should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C. The appliance has been exposed to rain; or D. The appliance does not appear to operate normally or exhibits a marked changed in performance; or E. The appliance has been dropped, or the enclosure damaged. Servicing - The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel. 10. 11. 12. 6. 13. 14. 15. 7. 8. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation - The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. 16. 17. D1624 / D824 TABLE OF CONTENTS 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . . . . 3. SOFTWARE UPDATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. SERVICE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. ERROR CODE LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. MODEL 8345/5042/5043/8350 INSTALLING PROCEDURES . . . . . 7. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . . . . . 8. CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . 4 8 11 12 22 23 30 58 NOTES * Service mode, exploded view, PCB assembly, parts list and circuit diagrams are given in this manual to assist the service technician in maintaining the Model D1624 / D824. * The following accessories are supplied with D1624 / D824 as the standard accessories. D1624 / D824 English owner's manual : 8288461000 D1624 / D824 Japanese owner's manual : 8288462000 D1624 / D824 English quick guide D1624 / D824 Japanese quick guide : 8288463000 : 8288464000 * Following is the packing material for the Model D1624 / D824. Carton, inner, D1624 Carton, outer, D1624 Carton, inner, D824 Carton, outer, D824 Packing, side, L, D1624 / D824 Packing, side, R, D1624 / D824 Packing, case, D1624 / D824 : 8228731000 : 8228910000 : 8228736000 : 8228914000 : 8228430001 : 8228430002 : 8228435000 CAUTION ! Parts marked with this sign are safety critical components. They must always be replaced with identical components. Refer to the Fostex Parts List and ensure exact replacement. 3 D1624 / D824 1. SPECIFICATIONS D824 / D1624 INPUT & OUTPUT INPUT (1 ~ 8) Connector RCA pin jack (x 8) Input Level -10 dBV Input Impedance 10 k or more OUTPUT (D824: 1 ~ 8, D1624: 1 ~ 16) Connector RCA pin jack (x 8: D824, x 16: D1624) Output Level -10 dBV Load Impedance 10 k or more DATA IN / OUT (D824: 1 ~ 8, D1624: 1 ~ 8 & 9 ~ 16) Connector Square shape optical Format IEC consumer optical standard (IEC 60958 Part 3) Alesis Proprietary Multichannel Optical Digital Interface (ADAT format does not comply to 96 kHz sampling frequency.) MIDI IN / OUT / THRU Connector DIN 5-pin Format Comply to MIDI standard WORD IN / OUT Connector BNC Level TTL level REMOTE IN / THRU Connector D-SUB 9-pin Transfer Format RS-422 Protocol Sony 9-pin (P2) protocol, ES bus SCSI Connector D-SUB 50-pin (half pitch) Protocol SCSI-2, unbalanced transfer method Transfer Type Asynchronous Number of Unit Connected 1 PUNCH IN / OUT Connector Ø6 mm phone jack Level CMOS (HIGH: 3.5 ~ 5 V, LOW: 0 ~ 1.5 V) RECORD & PLAYBACK Recording Medium Backup Medium Standard Sampling Frequency Quantization A-to-D Converter D-to-A Converter Recording Format Emphasis Recording Time (mono track min.) Number of Tracks Number of Recording Tracks at a Time D824 D1624 Internal 3.5" E-IDE hard disk drive (optional) External fixed / removable SCSI-2 SCSI device (backup only) SCSI-2 or better 44.1 kHz, 48 kHz, 96 kHz (Switchable by Disk Format) 16-bit linear, 24-bit linear (Switchable by Disk Format) 24-bit delta-sigma 128 times over sampling 24-bit delta-sigma 128 times over sampling FDMS-3 Version 2 Not available About 18 min. / 100 MB at maximum (at 44.1 kHz) 24 tracks (D824: 8 + 16 additional tracks, D1624: 16 + 8 additional tracks) 8 16 (when using DATA IN), 8 (Analog only or at 24-bit / 96 kHz) 4 D1624 / D824 Number of playback tracks at a time D824 D1624 No. of Programs Pitch Control Crossfade Overall Frequency Response Signal to Noise Ratio Dynamic Range T.H.D. Channel Separation Phase difference between channels 8 16, 8 (at 24-bit / 96 kHz) 99 ± 6.0 % (0.1 % step) 10 msec (at 44.1 / 48 kHz), 5 msec (at 96 kHz) 20 ~ 20 kHz ± 1 dB (at 44.1 / 48 kHz) 20 ~ 43 kHz ± 2 dB (at 96 kHz) 100 dB or more (between ADC and DAC, 24-bit) 100 dB or more (between ADC and DAC, 24-bit) 0.01 % or less (at 1 kHz, -10 dBV, 24-bit) 80 dB or more (at 1 kHz, 0 dB, 24-bit) 20 º or less (at 20 kHz) 8 steps (7 steps for FWD direction) ± 1 ~ 8 times (FWD: ± 1 ~ 7 times) ± 1 ~ 64 times ± 3 times ± 32 times 0 ~ 1 times (Envelope can be displayed when selecting only one track.) 6 (7 including [LOCATE] key temporary memory) + 99 FL Bargraph 11 dots (-, -42, -30, -24, -18, -12, -9, -6, -3, 0, OVER) - 12 dB + 2 dBV ± 1 dB 482 (W) x 148 (H) x 381 (D) mm 7.0 kg 100 V AC 120 V AC 230 V AC Approx. 30 W Approx. 35 W 20 ± 2 ºC 65 ± 5 % OPERATION Shuttle Speed CUE ON CUE OFF FFWD / REW Speed CUE ON CUE OFF Digital Scrubbing (JOG) Locate Memory Level Indication Type Number of Indicated Levels Reference Level (-10 dBV) Indication Full Scale Output Level GENERAL Dimensions Weight Power Supply JPN USA / CND EUR / UK Power Consumption D824 D1624 Standard Environment Standard Temperature Standard Humidity ENVIRONMENT CONDITION (W/O HD) Characteristics Guaranteed Temperature Humidity AC voltage deviation Operation Guaranteed Temperature Humidity AC voltage deviation + 5 ~ + 40 ºC 30 ~ 70 % ± 5 % or less 0 ~ + 45 ºC 85 % or less ± 10 % or less 5 D1624 / D824 8345 INPUT & OUTPUT TIME CODE INPUT Format Connector Standard Input Level Minimum Input Level Input Impedance TIME CODE OUTPUT Format Connector Standard Output Level Minimum Output Level Load Impedance VIDEO INPUT Format Connector Frame Pulse Field Pulse Standard Input Level Input Impedance VIDEO THRU Connector Output Level WORD INPUT Connector Frequency Standard Input Level Input Impedance WORD OUTPUT Connector Standard Output Level Load Impedance SMPTE/EBU XLR-3-31 type (Pin 1: GND, Pin 2: HOT, Pin 3: COLD) 2 V p-p 0.25 V p-p 20 k or more SMPTE/EBU XLR-3-32 type (Pin 1: GND, Pin 2: HOT, Pin 3: COLD) 2 V p-p 0.25 V p-p 20 k or more Composite (Applied video signal must comply to PAL or NTSC standard and be interlace type.) BNC 24, 25, 29.97, 30 Hz (± 1000 ppm) 48, 50, 59.94, 60 Hz (± 1000 ppm) 1 V p-p 75 (ON / OFF by terminator SW) BNC Direct output of signal fed to Video Input connector BNC 44.1 kHz, 48 kHz TTL level 75 (ON / OFF by terminator SW) BNC TTL level 75 215 (W) x 80 (D) mm Supplied from main unit DC + 5 V DC + 19 V / - 15 V GENERAL Dimensions Power Supply Digital Analog 6 D1624 / D824 5042 / 5043 INPUT & OUTPUT INPUT (1 ~ 8) Connector Standard Input Level Input Impedance OUTPUT (1 ~ 8) Connector Output Level Load Impedance OUTPUT (9 ~ 16, Model 5043 only) Connector Output Level Load Impedance D-SUB 25-pin + 4 dBu 10 k or more D-SUB 25-pin + 4 dBu 600 or more D-SUB 25-pin + 4 dBu 600 or more 270 (W) x 70 (D) mm DC + 15 V (Supplied from main unit) GENERAL DIMENSIONS POWER SUPPLY 8350 Connector Format Pin assignment Recommended cable D-SUB 25-pin IEC958 PART 3 (AES/EBU) Indicated below AES/EBU digital audio transfer cable from Hosa Technology Inc. DBK-258 (DB-25 (male) 4 x XLR (male) & 4 x XLR (female)) [ D-SUB 25-pin Assignment ] (Seen from rear panel side) 13 1 HOT COLD 14 1 15 2 16 3 17 4 18 5 19 6 20 7 21 8 10, 12, 13, 22, Frame GND 23, 24, 25 Open 9, 11 SIGNAL Input 1/2 Input 3/4 Input 5/6 Input 7/8 Output 1/2 Output 3/4 Output 5/6 Output 7/8 25 14 7 D1624 / D824 2. CONTROLS, INDICATORS & CONNECTORS Front Panel Section: Main Unit (D1624 / D824) 1 2 3 4 2 7 1. 2. 3. 4. Detachable Controller connector Controller mounter Removable hard disk cartridge slot Lock/Unlock key 6 5. Hard disk power LED 6. Access LED 7. Power switch 5 Front Panel Section: Controller (D1624 / D824) 1 2 26 4 5 11 13 6 7 8 9 10 12 14 15 16 36 35 3 31 29 27 25 23 21 30 28 24 22 20 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. Jog/Shuttle dial Vari-pitch / Pitch Edit key Fast Forward key Locate key Rewind key Undo/Redo / Multi Undo key Play key Setup / TC Generator Setup key Stop key Edit / TC Ready key Record / All Ready key Auto Punch Mode On/Off key Shift key TC ready LED Access LED All Input LED Punch In/Out jack Meter display 17 19 18 34 33 32 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 8 Controller Connection Cable Record Track Select / Envelope key Track Shift / All Input key Auto Play/Auto Return key Clipboard In / Preview key Clipboard Out / Preview key Auto Return Start / Preview key Auto Punch In / Preview key Auto Punch Out / Preview key Auto Return End / Preview key Display Select key Program select key Store key Exit/No / Eject key Execute/Yes / Chase key Recall key NEXT key Previous key D1624 / D824 Rear Panel Section (D1624) 1 2 34 5 2 6 MIDI INPUT OUTPUT THRU REMOTE INPUT THRU 100 OUTPUT WORD INPUT 75 ON ON OFF OFF CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. AC IN AVIS: ANALOG INPUT 4 3 2 1 8 7 6 RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR SCSI ANALOG OUTPUT 5 4 3 2 1 DIGITAL/DATA INPUT OUTPUT 16 - 9 8-1 16 - 9 8-1 8 7 6 5 16 15 14 13 12 11 10 9 OPTICAL 15 14 13 12 11 10 9 87 Rear Panel Section (D824) 1 2 34 5 2 6 MIDI INPUT OUTPUT THRU REMOTE THRU WORD INPUT 75 OUTPUT 100 ON ON OFF OFF CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. AC IN AVIS: ANALOG INPUT 4 3 2 1 4 RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR ANALOG OUTPUT 3 2 1 INPUT DIGITAL/DATA OUTPUT SCSI 8 7 6 5 8 7 6 5 OPTICAL 15 1. 2. 3. 4. 5. 6. 7. 8. 14 13 9. 10. 11. 12. 13. 14. 15. 12 11 10 9 87 Panel A for an optional card Panel B for an optional card WORD IN terminating switch WORD INPUT connector [BNC] WORD OUTPUT connector [BNC] MIDI Input/Output/Thru connector AC IN connector REMOTE THRU connector REMOTE INPUT terminating switch REMOTE INPUT connector SCSI connector [half-pitch 50-pin] Digital/Data Output connector [OPTICAL] Digital/Data Input connector [OPTICAL] Analog Output jack [RCA pin] Analog Input jack [RCA pin] 9 D1624 / D824 Rear Panel Section (D1624 with Model 5043 and 8345) 451 6 78 2 ANALOG BALANCE I/O +4dBu INPUT 8-1 +4dBu OUTPUT 16-9 +4dBu OUTPUT 8-1 9 10 11 3 MIDI INPUT OUTPUT THRU REMOTE INPUT THRU 100 OUTPUT VIDEO INPUT 75 THRU 75 WORD INPUT OUTPUT TIME CODE ON OFF ON OFF 1 GND 2 HOT 3 COLD ON OFF INPUT CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. AC IN AVIS: ANALOG INPUT 4 3 2 1 8 7 6 RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR SCSI ANALOG OUTPUT 5 4 3 2 1 DIGITAL/DATA INPUT OUTPUT 16 - 9 8-1 16 - 9 8-1 8 7 6 5 16 15 14 13 12 11 10 9 OPTICAL [ MODEL 5043 ] 1. Balanced input connector 2. Balanced output connector (9 - 16) 3. Balanced output connector (1 - 8) [ MODEL 8345] 4. Video input terminating switch 5. Video input connector 6. Video thru connector 7. 8. 9. 10. 11. Word input terminating switch Word input connector Word output connector Time code input connector Time code output connector Rear Panel Section (D824 with Model 5042, 8345 and 8350) 451 6 78 2 ANALOG BALANCE I/O +4dBu INPUT +4dBu OUTPUT 9 10 11 3 MIDI INPUT OUTPUT THRU 8-1 I/O AES/EBU REMOTE THRU VIDEO INPUT 75 THRU 75 WORD INPUT OUTPUT TIME CODE OUTPUT 100 ON OFF ON OFF 1 GND 2 HOT 3 COLD ON OFF INPUT CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. AC IN AVIS: ANALOG INPUT 4 3 2 1 4 RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR ANALOG OUTPUT 3 2 1 INPUT DIGITAL/DATA OUTPUT SCSI 8 7 6 5 8 7 6 5 OPTICAL [ MODEL 5042 ] 1. Balanced input connector 2. Balanced output connector [ MODEL 8350 ] 3. Digital input & output connector [ MODEL 8345 ] 4. Video input terminating switch 5. 6. 7. 8. 9. 10. 11. Video input connector Video thru connector Word input terminating switch Word input connector Word output connector Time code input connector Time code output connector 10 D1624 / D824 3. SOFTWARE UPDATE Since the 8Mbit flash ROM is mounted on the MAIN PCB assy, the D1624/D824 software can be updated through the SCSI port. Please refer to the following explanation for correct software updating procedures. 3-1. Required Tools The following tools/equipment are required to update the D1624/D824 software. 1. IBM PC/AT compatible computer with SCSI board 2. Removable type SCSI drive 3. Cable between the removable type SCSI drive and the SCSI board 4. Cable between the removable type SCSI drive and the D1624/D824 (D-SUB half-pitch 50-pin) 5. A Utility software to extract the WinZip compressed file 3-2. Software Updating Procedures Presuming that the updated software is correctly sent to you via email and is copied into your computer. 1. Connect the removable type SCSI drive to the IBM PC/AT compatible computer SCSI port. 2. Insert the diskette to the removable type SCSI drive and format it by the computer on which Windows 95/98 is running. 3. Using the utility software, extract the WinZip compressed software file. The extracted file name is "d1624mvX.XX". (X.XX indicates the version number. For example, if the software version number is V1.06, the file name is d1624mv1.06.) 3. Copy the updated software file "d1624mvX.XX" to the removable type SCSI drive (diskette). 4. Set the removable type SCSI drive ID to 6 and connect to the D1624/D824 SCSI port (D-SUB half-pitch 50-pin). 5. Turn on the power of removable drive and then D1624/D824. 6. Insert the diskette with updated software file. 7. The D1624/D824 automatically finds the software update file in the SCSI drive/disk and is put into the software update mode. In this condition, "SystemUp" is displayed and "SURE?" is blinking on the FL display. OL 0 3 6 9 12 18 24 30 42 44.1kHz SURE? _ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 8. Press the [EXECUTE/YES] key to start updating the software. 9. The D1624/D824 FL display shows "Loading !", "Writing !", etc and after a while, "SystemUp" appears on the FL display again. This indicates that the software is correctly updated. Press the [STOP] key or [EXIT/NO] key to eject the disk. 10. Turn off the D1624/D824 and the connected SCSI drive. 11. Disconnect the SCSI drive from the D1624/D824 and power on the D1624/D824 again. 12. Confirm the software version number and the programming date while in the boot up procedures. For your information, they can also be checked by the Service Mode explained later. [CAUTION] In case the D1624/D824 does not find the software update file in the external SCSI drive by itself, please follow the procedures below. 1..6. Same as the before mentioned procedures. 7. Press the [SETUP] key. 8. Rotate the jog wheel, select the "Drive Sel?" menu and press the [EXECUTE/YES] key. : Blinking SETUP OL 0 3 6 9 12 18 24 30 42 44.1kHz _ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 11 D1624 / D824 9. Select "SCSI-6" and press the [EXECUTE/YES] key. : Blinking SETUP OL 0 3 6 9 12 18 24 30 42 44.1kHz _ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10. The D1624/D824 recognizes the software file in the connected SCSI drive/diskette and is automatically put into the software update mode. 11. Press the [EXECUTE/YES] key to start updating the software. 12. The D1624/D824 FL display shows "Initial...", name of the drive, "Loading..." and "Writing..." in order and after a while, "SURE?" will start blinking again. This indicates that the software is correctly updated. Press the [STOP] key or [EXIT/NO] key to eject the disk. 13. Turn off the D1624/D824 and the connected SCSI drive. 14. Disconnect the SCSI drive from the D1624/D824 and power on the D1624/D824 again. 15. Confirm the software version number and the programming date while in the boot up procedures. They can also be checked by the Service Mode explained later. 4. SERVICE MODE There are various optional modes available in the D1624/D824 Service Mode. Please utilize them when servicing the unit. 4-1. Putting D1624/D824 into Service Mode The way of putting the D1624/D824 into Service Mode is as follow. 1. Plug a 3.5" E-IDE HDD caddy into the D1624/D824 HD bay and lock it using the HD key. 2. Power on the D1624/D824. 3. While holding down the [STOP] key and [TRACK SHIFT/ALL INPUT] key, press the [SETUP] key. As shown below, by rotating the jog dial C.W. or C.C.W., various optional modes will be displayed in addition to the general SETUP menus. In order to select a certain optional mode, press the [EXECUTE/YES] key while the menu is displayed. : Blinking SETUP OL 0 3 6 9 12 18 24 30 42 44.1kHz _ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Tempo Map Set? Signature Set? Disk Format? Delete PGM? Preroll Time? Frame Rate? Offset Mode? Slave Type? Rec Protect? Title Edit? Click ? Midi Sync Out? MTC offset? Ref. TC? Reserved Disk Optimize? Reserved Date & Time set? Save PGM? Load pGM? Drive Sel? Version? Standby Disk? Self Check? Initial Disk? DA Test? Display Test? Offset Disp? Flash ROM? Freeblock Check? Digital In? Digital Out? Resolution? Device ID? Clock Sel? Sync Preset? NOs Of Event? Drive Info? Reserved Virtual LTC? Offset Disp? 4-2. Flash ROM (software) version This mode is used to check the Flash ROM (software) versions currently installed in the unit. : Blinking OL 0 3 6 9 12 18 24 30 42 44.1kHz _ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 12 D1624 / D824