1-2
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or
damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton
swab should be used, taking care not to distort this.
6) Never attempt to disassemble the pick-up.
Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not
use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this
alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
SERVICING PRECAUTIONS
SECTION 1 GENERAL
Summary of Contents for MDS902S
Page 9: ...1 8 MEMO ...
Page 17: ...2 15 2 16 MEMO MEMO ...
Page 18: ...2 17 PACKING ACCESSORY SECTION ...
Page 31: ...3 13 INTERNAL BLOCK DIAGRAM OF ICs 1 HA12237F BLOCK DIAGRAM ...
Page 32: ...3 14 2 NJW1190 BLOCK DIAGRAM 3 AF330W20FT 3 1 PIN CONFIGURATION ...
Page 33: ...3 15 3 2 BLOCK DIAGRAM 3 3 PIN DESCRIPTION ...
Page 34: ...3 16 4 AF350W01FT 4 1 PIN CONFIGURATION 4 2 BLOCK DIAGRAM ...
Page 35: ...3 17 4 3 PIN DESCRIPTION ...
Page 36: ...3 18 3 19 WIRING DIAGRAM ...
Page 37: ...3 20 3 21 BLOCK DIAGRAM ...
Page 40: ...3 26 3 27 3 AUDIO MAIN SCHEMATIC DIAGRAM ...
Page 41: ...3 28 3 29 4 DECK SCHEMATIC DIAGRAM ...
Page 42: ...3 30 3 31 5 USB AUX2 HEADPHONE AMP SCHEMATIC DIAGRAM ...
Page 43: ...3 32 3 33 6 I O JACK SCHEMATIC DIAGRAM ...
Page 44: ...3 34 3 35 7 AMP SCHEMATIC DIAGRAM ...
Page 45: ...3 36 3 37 8 WOOFER AMP SCHEMATIC DIAGRAM ...
Page 46: ...3 38 3 39 9 FRONT SCHEMATIC DIAGRAM ...
Page 47: ...3 40 3 41 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Page 48: ...3 42 3 43 MAIN P C BOARD BOTTOM VIEW ...
Page 49: ...3 44 3 45 2 SMPS POWER P C BOARD 3 SUB SMPS POWER P C BOARD ...
Page 50: ...3 46 3 47 4 FRONT P C BOARD TOP VIEW ...
Page 51: ...3 48 3 49 FRONT P C BOARD BOTTOM VIEW ...
Page 52: ...3 50 3 51 5 AMP P C BOARD TOP VIEW BOTTOM VIEW ...
Page 53: ...3 52 3 53 6 WOOFER AMP P C BOARD MEMO ...
Page 65: ...4 12 8 TRACKING SIGNAL 1 Tro 2 Tr 3 Tr 9 RF WAVEFORM ...
Page 66: ...4 13 10 DISK TYPE JUGEMENT WAVEFORM 1 F 2 FDO 3 SVRRF DVD CD ...
Page 67: ...4 14 MEMO ...
Page 68: ...4 15 4 16 SCHEMATIC DIAGRAMS 1 MPEG SCHEMATIC DIAGRAM ...
Page 69: ...4 17 4 18 2 SERVO SCHEMATIC DIAGRAM ...
Page 70: ...4 19 4 20 3 USB SCHEMATIC DIAGRAM ...
Page 71: ...4 21 4 22 4 INTERFACE SCHEMATIC DIAGRAM ...
Page 72: ...4 23 4 24 DVD P C BOARD TOP VIEW PRINTED CIRCUIT DIAGRAM ...
