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Resumen del manual
1 SPECIFICATIONS Audio System: Laser: Specifications MiniDisc digital audio system Semiconductor laser (=780 nm) Sampling frequency: 44.1 kHz Coding: Adaptive Transform Acoustic Coding (ATRAC) No. of channels: 2 (left and right, stereo) 1 (monaural) Frequency response: 20 Hz~20 kHz (+0 dB, -8dB) Wow and flutter: General Output terminal Output Jack: Power output: Power supply Rechargeable battery: Battery: Dimensions (WxHxD) Cabinet dimensions : incl.projecting parts : Weights: Play time Below measurable limit Phones, 22 3.5 mW+3.5 mW DC 1.2V (included rechargeable battery) DC 1.5V (One LR6, AA, UM-3 battery) 71.5x78.5x11.8 mm 74.1x80.1x13.9 mm 79 g (with battery) 54 g (without battery) (When used in hold mode, at 25°C, on a flat, stable surface) Battery type: Rechargeable: Play time About 18 hours 2 Panasonic About 70 alkaline: hours Both together: About 88 hours Charger Input: AC120-240 V (EG) / AC 230-240V (EB), 50 Hz 4W Output: DC 340mA (EG)/DC 350mA (EB), 1.2V Recharging time: About 2 hours Notes: -The play time may be less depending on the operating conditions. -Specifications are subject to charge without notice. Weight and dimensions are approximate. 1 1. Accessories -Stereo earphones...................................................1 pc. (L0BAB0000162) -Wired remote control..............................................1 pc. (RFEV025P-SM) -External battery case..............................................1 pc. (K3ZZ00200038) -Rechargeable Ni-Cd battery....................................1 pc. (RP-BP62EYS1) 3 -Carrying case..........................................................1 pc. (RFC0056-K) For EB area -Charger...................................................................1 pc. (RP-BC155AEBY) For EG area -Charger...................................................................1 pc. (RP-BC155AEYB) 2. Precaution of Laser Diode 4 3. Operating Instructions 4. Handling Precautions for Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). 4.1. Handling the traverse deck (optical pickup) 1. The traverse deck (optical pickup) is an extremely high-precision construction and must not be subjected to impact, excessive vibration, or other types of rough handling. 2. In order to prevent static electricity damage to the laser diode, use a short pin or similar tool to short the optical pickup’s flexible circuit boards after they have been disconnected from the main circuit board. (as shown in Fig. 1 ) 3. Handle the flexible circuit boards with care; excessive force could cause them to be broken. 4. Do not turn the pre-set variable resistor (for adjustment of the laser power); it has been adjusted at the factory. (as shown in Fig. 2 ) 5 Fig. 1 Fig. 2 4.2. Grounding for electrostatic breakdown prevention 1. Human body grounding 6 Use the anti-static wrist strap to discharge the static electricity from your body. (as shown in Fig. 3 ) 2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, and ground the sheet. (as shown in Fig. 4 ) Caution The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup). Fig. 3 Fig. 4 7 5. Operation Checks and Component Replacement Procedures -This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. -For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. -After replacing the main components (optical pickup or traverse motor, etc.) of mechanism unit block, change to the adjust mode, and then perform the “ROM/RAM auto-adjustment”. 5.1. Checking for the P.C.B. 8 9 -Check the P.C.B. as shown below. 10 5.2. Replacement for the lock unit, open knob and intermediate cabinet -Follow the (Step 1) - (Step 3) of item 5.1. 11 12 13 14 5.3. Replacement for the disc cover ass’y -Follow the (Step 1) - (Step 3) of item 5.1. -Follow the (Step 1) - (Step 3) of item 5.2. 15 5.4. Replacement for the traverse motor -Follow the (Step 1) - (Step 3) of item 5.1. 16 17 18 19 5.5. Replacement for the optical pickup -Follow the (Step 1) - (Step 3) of item 5.1. -Follow the (Step 1) - (Step 5) of item 5.4. 20 21 22 23 24 6. Measurements and Adjustments Note: After replacing the main components (optical pickup or traverse motor, etc.) of mechanism unit block, change to the adjust mode, and then perform the “Laser power adjustment”, “Off-set automatic adjustment” and “Playback-onlydisc/ magneto-optical disc automatic adjustment”. 6.1. Instruments to prepare 1. Playback-only disc (Test disc RFKV0006) 2. Commercially available recordable disc (fully rec...