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ELECTRICAL TROUBLESHOOTING GUIDE
Any Key power on.
Is power turnd on?
DISC loading?
Does initial reading occur?
Can disc be played?
Is audio output supplied?
Check power supply circuitry.
Q380, Q381, Q382,Q230
IC201 Pin1, IC401 Pin3.
Check loading supply circuitry.
Q350,Q351,Q353,
PN505, IC401 Pin1
Check laser circuitry.
Q501, IC502
Check focusing circuitry.
Q501,IC501.
Check DISC.
Check tracking servo circuitry.
Q501,IC502, IC501.
Check audio circuitry.
IC501,IC601,IC803.
OK
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
(1) No Power.
SECTION 2. ELECTRICAL
Содержание LAC-M4510
Страница 12: ... 2 7 IC401PD784214A 1 PORT ASSIGNMENT INTERNAL BLOCK DIAGRAM of ICs ...
Страница 13: ... 2 8 IC501 MN6627933CG ...
Страница 14: ... 2 9 1 BLOCK DIAGRAM ...
Страница 17: ... 2 12 IC505 AMC1117 1 BLOCK DIAGRAM ...
Страница 18: ... 2 13 IC601TDA7348D ...
Страница 19: ... 2 14 IC801 TA8275H ...
Страница 20: ... 2 15 IC901 PT6524 1 BLOCK DIAGRAM 2 PIN CONFIGURATION ...
Страница 21: ... 2 16 ...
Страница 23: ...2 19 2 20 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM ...
Страница 24: ...2 21 2 22 2 FRONT SCHEMATIC DIAGRAM ...
Страница 25: ...2 23 2 24 3 CDP SCHEMATIC DIAGRAM ...
Страница 26: ...2 25 2 26 4 TRIM SCHEMATIC DIAGRAM ...
Страница 27: ...2 27 2 28 5 LIGHTIN SCHEMATIC DIAGRAM ...
Страница 28: ...2 29 2 30 PRINTED CIRCUIT DIAGRAM 1 MAIN P C BOARD ...
Страница 29: ...2 31 2 32 2 FRONT P C BOARD 2 FRONT P C BOARD ...
Страница 30: ...2 33 2 34 3 CDP P C BOARD 3 CDP P C BOARD ...
Страница 31: ...2 35 2 36 5 LED P C BOARD 5 LED P C BOARD 4 TRIM P C BOARD 4 TRIM P C BOARD ...
Страница 33: ...3 3 3 4 ...
