- 1-3 -
NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components
are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components
can be damaged, and for that reason components should be handled with care.
2) The pick-up is composed of many optical components and other high-precision components. Care must be
taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnet-
ism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing a component part, first disconnect the power supply lead wire from the unit
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is
because there is the possibility of damage by static electricity.)
4) To prevent AC leakage, the metal part of the soldering iron should be grounded.
5) Workers should be grounded by an armband (1M
Ω
)
6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent sta-
tic electricity changes in the clothing to escape from the armband.
7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.
Resistor
(1 Mohm)
Conductive
Sheet
Resistor
(1 Mohm)
Armband
Summary of Contents for LH-SW5100
Page 5: ... 1 5 SPECIFICATIONS ...
Page 6: ... 1 6 LOCATION OF CUSTOMER CONTROLS FRONT PANEL DISPLAY WINDOW ...
Page 7: ... 1 7 REAR PANEL ...
Page 8: ... 1 8 REMOTE CONTROL ...
Page 10: ... 2 2 2 AUDIO µ COM CIRCUIT ...
Page 12: ... 2 4 4 FRONT CIRCUIT 2 2 ...
Page 14: ... 3 2 2 Test debug flow ...
Page 15: ... 3 3 ...
Page 16: ... 3 4 ...
Page 17: ... 3 5 ...
Page 18: ... 3 6 ...
Page 19: ... 3 7 ...
Page 23: ... 3 11 2 Tray close waveform 3 Tray open waveform ...
Page 25: ... 3 13 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION 7 DISC TYPE JUDGEMENT W VEFORM ...
Page 26: ... 3 14 ...
Page 27: ... 3 15 8 FOCUS ON W VEFORM ...
Page 28: ... 3 16 9 SPINDLE CONTROL W VEFORM NO DISC CONDITION ...
Page 29: ... 3 17 10 TRACKING CONTROL RELATED SIGNAL System checking ...
Page 30: ... 3 18 11 RF W VEFORM 12 MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT ASPDIF ...
Page 31: ... 3 19 13 MT1379 VIDEO OUTPUT W VEFORM 1 Full colorbar signal CVBS 2 Y ...
Page 32: ... 3 20 3 C 14 AUDIO OUTPUT FORM AUDIO DAC 1 Audio related Signal ...
Page 33: ... 6 1 SECTION 6 SPEAKER PART ELECTRICAL TROUBLESHOOTING GUIDE ...
Page 34: ... 6 2 ...
Page 35: ... 6 3 ...
Page 36: ... 6 4 ...
Page 37: ... 6 5 ...
Page 38: ... 6 6 MEMO ...
Page 39: ... BLOCK DIAGRAM 2 5 2 6 ...
Page 40: ...2 7 2 8 SCHEMATIC DIAGRAMS FRONT POWER SCHEMATIC DIAGRAM ...
Page 41: ...2 9 2 10 MICOM SCHEMATIC DIAGRAM ...
Page 42: ...2 11 2 12 I O SCHEMATIC DIAGRAM ...
Page 43: ...2 13 2 14 DAP SCHEMATIC DIAGRAM ...
Page 44: ...2 15 2 16 AMP SCHEMATIC DIAGRAM ...
Page 45: ...2 17 2 18 SMPS SCHEMATIC DIAGRAM ...
Page 46: ...2 19 2 20 WIRING DIAGRAM ...
Page 47: ...2 21 2 22 VOLTAGE SHEET IC TR ...
Page 48: ...2 23 2 24 ...
Page 49: ...2 25 2 26 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD SOLDER SIDE ...
Page 50: ...2 27 2 28 MAIN P C BOARD COMPONENT SIDE ...
Page 51: ...2 29 2 30 FRONT P C BOARD ...
Page 52: ...2 31 2 32 SMPS P C BOARD ...
Page 53: ...3 21 3 22 DVD PART SCHEMATIC DIAGRAMS MPEG SCHEMATIC DIAGRAM ...
Page 54: ...3 23 3 24 SERVO SCHEMATIC DIAGRAM ...
Page 55: ...3 25 3 26 INTERFACE SCHEMATIC DIAGRAM ...
Page 56: ...3 27 3 28 VOLTAGE SHEET IC TR ...
Page 57: ...3 29 3 30 PRINTED CIRCUIT DIAGRAM DVD P C BOARD SOLDER SIDE ...
Page 58: ...3 31 3 32 DVD P C BOARD COMPONENT SIDE ...
Page 61: ...6 7 6 8 BLOCK DIAGRAM ...
Page 62: ...6 9 6 10 SHEMATIC DIAGRAMS SCHEMATIC DIAGRAM ACC W5100 ...
Page 63: ...6 11 6 12 SCHEMATIC DIAGRAM FA W5100 ...
Page 64: ...6 13 6 14 SMPS SCHEMATIC DIAGRAM FA W5100 ...
Page 65: ...6 15 6 16 WIRING DIAGRAM ...
Page 66: ...6 17 6 18 PRINTED CIRCUIT DIAGRAM ACC W5100 P C BOARD ...
Page 67: ...6 19 6 20 FA W5100SL SR MAIN P C BOARD ...
