- 2-2 -
2. LCD light abnornal.
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
Any Key power on.
(without DISC)
Do display LCD then light?
Check voltage in the power
supply circuitry.
Power supply circuitry defective.
• Check Q403, Q404, Q406,
Q407, IC802 Pin .
• Reset circuit defective.
IC901 Surrounding circuit
defective.
• IC901 Pin defective.
Check X401, X402, C402,
C403, C404, C505.
PN401 or PN903 or front
PCB pattern defective.
IC401, Pins , , or
front PCB pattern defective.
IC901 Surrounding circuit
PCB pattern defective.
Display LCD connector
defective.
Is IC901 Com1, Com2, Com3
output waveform normal?
Is u-com IC401 Pins , ,
output waveform normal?
Is u-com IC401 pin reset
circuit normal?
Is u-com IC401 keyin
Pins , 5volt input?
Is u-com IC401 X1, X2 termi-
nal Pins , , , input?
OSC : 19.2MHz
OSC : 32.768kHz
4
74
57
11
63
74
75
76
74
75
76
64
12
14 15
Содержание LAC-M5600
Страница 11: ... 1 10 ...
Страница 18: ... 2 7 INTERNAL BLOCK DIAGRAM of ICs UPD78F0546 1 Block Diagram ...
Страница 20: ... 2 9 2 Pin Descriptions ...
Страница 21: ... 2 10 ...
Страница 22: ... 2 11 BD3805F SCF built in sound processor 1 BLOCK DIAGRAM ...
Страница 23: ... 2 12 HA13173 Multi Voltage Regulator IC ...
Страница 24: ... 2 13 TA8275H Bipolar Liner 1 Block Diagram ...
Страница 25: ... 2 14 AM5810 Motor Driver IC 1 Block Diagram ...
Страница 26: ... 2 15 3 Pin Function ...
Страница 32: ... BLOCK DIAGRAM WHOLE 2 21 2 22 ...
Страница 33: ...2 23 2 24 BLOCK DIAGRAM CDP ...
Страница 34: ...2 25 2 26 SCHEMATIC DIAGRAMS MAIN SCHEMATIC DIAGRAM ...
Страница 35: ...2 27 2 28 FRONT SCHEMATIC DIAGRAM ...
Страница 36: ...2 29 2 30 USB SCHEMATIC DIAGRAM ...
Страница 37: ...2 31 2 32 USB SUB SCHEMATIC DIAGRAM ...
Страница 38: ...2 33 2 34 CD SCHEMATIC DIAGRAM ...
Страница 39: ...2 35 2 36 PRINTED CIRCUIT BOARD DIAGRAMS MAIN P C BOARD DIAGRAM BOTTOM ...
Страница 41: ...2 39 2 40 CD P C BOARD BOTTOM CD P C BOARD TOP ...
Страница 43: ...3 3 3 4 2 3 4 5 1 1 2 A03 MECHANISM PICK UP ...