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
magnetism 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
static 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.
CLEARING MALFUNCTION
You can reset your unit to initial status if malfunction occur(button malfunction, display, etc.).
Using a pointed good conductor(such as driver), simply short the RESET jump wire on the inside of the
volume knob for more than 3 seconds.
If you reset your unit, you must reenter all its settings(stations, clock, timer)
NOTE:
1. To operate the RESET jump wire, pull the volume rotary knob and release it.
2. If you wish to operate the RESET jump wire, it is necessary to unplug the power cord.
- 1-3 -
Armband
Conductive
Sheet
Resistor
(1 Mohm)
Resistor
(1 Mohm)
VOLUME KNOB
UP
DOWN
VOLUME
RESET jump wire
Summary of Contents for LM-M1030A
Page 6: ... 1 5 SPECIFICATIONS LM M1030A D X LMS M1030 ...
Page 7: ... 1 6 MEMO ...
Page 32: ... 2 25 CD MAIN P C BOARD COMPONENT SIDE ...
Page 33: ... 2 26 CD MAIN P C BOARD SOLDER SIDE ...
Page 36: ...2 29 2 30 FRONT SCHEMATIC DIAGRAM ...
Page 37: ...2 31 2 32 TUNER DECK SCHEMATIC DIAGRAM ...
Page 38: ...2 33 2 34 CDP SCHEMATIC DIAGRAM ...
Page 40: ...2 37 2 38 PRINTED CIRCUIT DIAGRAMS MAIN MIC P C BOARD SOLDER SIDE ...
Page 41: ...2 39 2 40 MAIN MIC P C BOARD COMPONENT SIDE ...
Page 42: ...2 41 2 42 FRONT P C BOARD COMPONENT SIDE ...
Page 43: ...2 43 2 44 FRONT P C BOARD SOLDER SIDE ...
Page 44: ...2 45 2 46 CD MAIN P C BOARD COMPONENT SIDE CD MAIN P C BOARD SOLDER SIDE ...
Page 46: ... 2 49 INTERNAL BLOCK DIAGRAM OF ICs BA5810FP IC803 ...
Page 50: ... 2 53 BA3126N IC201 2 channel head switch for radio cassette recorders ...
Page 52: ... 2 55 KIA4558P S IC602 BIPOLAR LINEAR INTEGRATED CIRCUIT ...
Page 60: ... 4 1 MODEL LMS M1030 855 854 856 853 851 857 850 852 864 262 SECTION 4 SPEAKER SECTION ...
Page 61: ... 4 2 MEMO ...
