SAFETY PRECAUTIONS WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions for this recording or playback equipment. The following precautions are necessary during servicing: Many electrical and mechanical parts in this recorder have 3. Before returning the set to the customer, always perform an special safety-related characteristics for providing protec- AC leakage current check on the exposed metallic parts of tion against shock, fire and other hazards.
Television System : NTSC color signal standard (DSR-3000) Based on PAL colour signal standard (DSR-3000P) Picture Resolution : 720 x 240 (Field), 720 x 480 (Frame) (DSR-3000) 720 x 288 (Field), 720 x 576 (Frame) (DSR-3000P) Compression : M-JPEG Picture Quality :...
•Alarm Full out treminal : 1 output (Normal 5V Low level active) Power : AC 120 V, 60 Hz (DSR-3000) ; AC 220 - 240 V, 50 Hz (DSR-3000P) Power consumption : 26 W 400mA (DSR-3000) ; 27 W 260mA (DSR-3000P) °...
1. Description of Circuitry Explanation of Hard Disk Circuit Operations Description of Power Supply Circuit Operations (1) Introduction (1) Introduction (1-1) DM-A The power supply circuits are mainly formed by the follow- (a) Input/Output Video Filter: Q2011, 12, 13, 14, 21, 22, 23, ing blocks.
IDE I/F (i) Synch Insertion Circuit Q2501, 2502, 2503 Interface circuit for IDE hard disk. Circuit for inserting the synch signal into the D/A converted brilliance signal. BUS Arbitration SDRAM CTL Control circuit for arbitration of bus and external SDRAM. (1-3) DM-C (a) Sub-processor IC271 Interface circuit for Flash Memory, PC Card, and CF Card.
The playback images are read from the hard disk, and once (2) Description of Operation stored on the SDRAM, they are expanded in order. When power is turned on, the sub-processor and ASIC are The image data enters the Video Encoder from the bus, and reset, the programs in the flash ROM are loaded to the ASIC, then is combined with the image signal.
2. RESETTING THE USE TIME <POWER FAILURE/USED TIME> 1.Press the SHUTTLE HOLD button for more than 3 seconds. POWER FAILURE DISK1 USE time display reverses. F A I LURE – – – – – – – : – – 2.USED TIME display to reset with the JOG dial is chosen. RECOVER –...
4. ADJUSTMENT 1. POWER VOLTAGE ADJUSTMENT Measuring Point Measuring Equipment Condition TP205, Digital voltmeter POWER ON TP203 (GND) E-E Mode Adj. Location Adj. Value 3.3 V ± 0.1 V VR551 (PW-1 board) 1. Adjust VR551 so that voltage of TP205 and TP203 is 3.3 ± 0.1 V.