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EN 2 VAD 8031 Technical Specifications and Connection Facilities 1. Technical Specifications and Connection Facilities VAD8031 functionality: • Loading of 8 cm and 12 cm discs by a motorized tray • Disc type recognition and in case of a DVD+RW disc laser power calibration •...
Safety Instructions, Warnings and Notes VAD 8031 EN 3 2. Safety Instructions, Warnings and Notes Safety Instructions Warnings 2.1.1 General Safety 2.2.1 General Safety regulations require that during a repair: • All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD, symbol ).
Mechanical Instructions VAD 8031 EN 5 4. Mechanical Instructions Note that exploded views can be found in chapter 10 Cabinet and Clamper Bridge – Remove the encasing by releasing the four screws [1], see General figure 4-1 – Make sure that you do not lose the 5 heat paths (gray Follow the dismantling instructions in described order.
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EN 6 VAD 8031 Mechanical Instructions Tray – Remove encasing as as described in 4.3 – Disengage the two holders that fix the tray [1], see figure 4- 3, and pull out the tray [2] Figure 4-4 Remove PWB DVD-M Caution: Never try to align or repair the DVD-Module itself! Only the factory can do this properly.
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Mechanical Instructions VAD 8031 EN 7 Sledge Motor Assembly Caution: Never try to align or repair the DVD-Module itself! Only the factory can do this properly. Service engineers are only allowed to exchange the sledge motor assy. – Place the DVD-Module, with the laser facing downwards on a soft surface.
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EN 8 VAD 8031 Diagnostic Software 5. Diagnostic Software General 0x11 wobble_pll_error Wobble pll could not lock to wobble signal Please refer to the service manual of the recorder for a 0x12 subcode_timeout_error Subcode information could description of the complete Diagnostics Software. In this not be read manual only drive specific error codes are explained.
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Diagnostic Software VAD 8031 EN 9 0x2F frontend_offset_calib_erro The offset in the frontend couldn’t be calibrated 0x30 reserved 0x31 wsg_calculation_error An error occurred in the cal- culation of the write strategy 0x32 buffer_overrun_error The buffer input stream over- ran the buffer output stream 0x33 return_value_invalid_error The requested information is not available for this inquiry...
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EN 10 VAD 8031 Diagnostic Software Byte 1 - 9: cumulative errors of previous error occurences. Format of the BE error bytes Every individual error has its own bit in the 9-byte structure as described in the drawing below: byte 1 FOCUS FOCUS FOCUS...
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Diagnostic Software VAD 8031 EN 11 5.2.2 Cumulative errors These errors are stored in EEPROM and are thus non-volatile showing the complete error history of the drive. Byte 1 - 9: cumulative errors of previous player / inquiry error occurences. These bytes are the same as the nine bytes (1-9) of the Momentary errors 5.2.3 Software fatal assert...
Alignments VAD 8031 EN 31 8. Alignments In case of a change of DVD-M or PWB a readjustment is necessary to align the OPU and PWB to each other. Necessary Tools – Personal computer with Windows 2000 or Windows – USB to ATAPI adapter, (standard computer equippment) see figure 8-1.
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Mechanically, the module consists of a motorized tray loader that contains the dual laser optical pickup unit and a PCBA that contains all the electronics needed to control the drive and The VAD8031 module, also known as “AV3”, is a Video interfacing MPEG...
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 33 Laconic The main function of the LACONIC, IC7300 is to control the laser power. The IC forms a closed control loop in combination with the Elantec located on the OPU. It compensates aging and temperature of the laser.
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EN 34 VAD 8031 Circuit Descriptions, Abbreviation List, and Datasheets ICs Servo Board IC7105, LM75A: Servo Board, Temperature Sensor Pin description SYMBOL DESCRIPTION Digital I/O. I C serial bi-directional data line. Open Drain. Digital input. I C serial clock input. Overtemp Shutdown output.
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 35 IC7201, TZA1039HL: Servo Board, Analogue Preprocessor BLOCK DIAGRAM VDD1 VDD2 GND1 VSSD VSS1 VSS2 GND2 GNDD RF-AMP RF-REF RFPIN CALF RFNIN A1,A2 CCALF BET A CA1,CA2 ALF A LASP ALF A D1..D4 Offset S1,S2...
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EN 36 VAD 8031 Circuit Descriptions, Abbreviation List, and Datasheets PINNING SYMBOL DESCRIPTION SYMBOL DESCRIPTION N.C. Not connected N.C. Not connected Satelite segment H input SERTST Enable test mode (Tie to GND for GND1 Ground normal operation) Central segment C input VSSD Negative supply voltage Central segment B input...
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 37 IC7300, TZA1042: Servo Baord, Laser Power Controller Block diagram...
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EN 38 VAD 8031 Circuit Descriptions, Abbreviation List, and Datasheets Pin description Symbol Type Drive Description /Thr. I hy Alpha Error Zero/Alpha Set Zero Digital Pad Supply DDD3 Digital Pad Supply SSD3 CLOCKOUT Buffered Oscillator Output OSCO Output of inverting Amplifier that forms oscillator OSCI Input of inverting Amplifier that forms oscillator TEST1D...
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 39 Pin description …continued Symbol Type Drive Description /Thr. IRQN Interrupt Request Not – active low interrupt request OSTR I hy OPC Strobe – request step in alpha setpoint / Board test input RESETN I hy...
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EN 40 VAD 8031 Circuit Descriptions, Abbreviation List, and Datasheets IC7402, SZA1015: Servo Board, Brushless Motor Controller V DD V DDM n.c. START 13, 16, 22 THERMAL i.c. 9, 31 SHUTDOWN POWER SWITCHES REFERENCE CURRENT COMMUTATION D LIM LIMITER INPUTS 15, 17, 20 REVERSE SZA1015...
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 41 PINNING SYMBOL PIN DESCRIPTION motor control ground supply BIAS Hall element bias ROSC external resistor for internal oscillator REMF external resistor for EMF regeneration RLIM external resistor for current limiting frequency generator output output current control pin output current control reference...
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EN 42 VAD 8031 Circuit Descriptions, Abbreviation List, and Datasheets IC7408,7409 BA5995: Servo Board, 4-channel BTL driver IC actuator and motor drive PreV PowV STAND BY (ch3 / 4) ch1 / 3 / 4 LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT MUTE...
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 43 IC7500, PNX7850: Servo Board, Channel Codec/Buffer Manager/Servo Processor and Controller Nexperia PNX7850 conceptual block diagram SDRAM ANALOG CHANNEL CODEC BUFFER MANAGER SDRAM CD/DVD EFM WRITE CD/DVD CONTROLLER wobble WOBBLE CLOCK/DATA CHANNEL UDMA66 PROCESSOR...
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EN 44 VAD 8031 Circuit Descriptions, Abbreviation List, and Datasheets IC7604, TEA1207: Servo Board, DC/DC Converter Block diagrama P-type POWER FET UPOUT/DNIN INTERNAL CONVERTER SUPPLY sense FET ILIM START-UP CIRCUIT TEA1207T CONTROL LOGIC CURRENT LIMIT COMPARATORS MODE GEARBOX CONVERTER N-type TEMPERATURE POWER BAND GAP...
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Circuit Descriptions, Abbreviation List, and Datasheets VAD 8031 EN 45 IC7605, ST735: Servo Board, -5V Inverting PWM Regulator SCHEMATIC DIAGRAM PIN DESCRIPTION Pin N˚ Symbol Name and Function SHDN SHUT-DOWN Control (V =ON GND=Shutdown Reference Output Voltage Soft Start Compensation Input Negative Output Voltage Ground Switch Output...
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SCLK ......Audio serial bit clock SDA ......Serial Data I2C SDRAM ......Synchronous DRAM SMC ......Surface Mounted Components S/PDIF......Sony Philips Digital InterFace SPIDRE ......Signal Processing Ic for Dvd R Ewritable SRAM ......Static Random Access Memory STBY ......
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Spare Parts List VAD 8031 EN 47 10. Spare Parts List 10.1 Exploded Views Basic Engine...