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4
Disc motor (D.M.) does not rotate.
Does pin 117 of IC401
(TP409) PLCK oscillate around
10 MHz ?
Check peripheral
circuit of IC402.
Check peripheral circuits
of IC402.
Check disc motor and wiring.
N
Y
Focus servo is NG.
Are FE, RFSB,
FSON signals normal?
Check peripheral circuit of IC604.
Do signals output to
pins 4 to 9 of CN501?
Check IC502.
Check wiring for
pickup head.
Lens cleaning.
Replace pickup
mechanism.
Y
Y
N
N
5
FE signal
Pin 150 (TP405)
of IC401
RFSB signal
Pin 152 (TP503)
of IC401
0.3V
1.65V
0.3V
Focus search Focus servo on
Focus servo ON
signal waveform
Fig. 1-3-10
Fig. 1-3-11
Fig. 1-3-12
Содержание SD-120EB
Страница 4: ...SECTION 1 GENERAL DESCRIPTIONS 1 OPERATING INSTRUCTIONS SD 220EB SECTION 1 GENERAL DESCRIPTIONS ...
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Страница 62: ...Others Before Calling Service Personnel Specifications ...
Страница 105: ...4 2 Power Supply Block Diagram Fig 3 4 2 ...
Страница 107: ...Fig 3 4 5 4 3 3 Front Display Power Switch Block Diagram ...
Страница 108: ...m Q502 Q501 PUDET2 IC306 Fig 3 4 6 4 4 Main Block Diagrams 4 4 1 Servo System Block Diagram ...
Страница 110: ...4 4 3 Output RGB Block Diagram Fig 3 4 8 ...
Страница 111: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 3 5 1 5 CIRCUIT DIAGRAMS 5 1 Power Supply Circuit Diagram ...
Страница 113: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 3 5 3 5 2 Front Display Power Switch Circuit Diagram ...
Страница 116: ...5 3 2 Main Circuit Diagram Fig 3 5 5 ...
Страница 117: ...5 3 2 Main Circuit Diagram ...
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Страница 124: ...Fig 3 5 5 ...
Страница 126: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F 5 4 Output RGB Circuit Diagram Fig 3 5 7 ...
Страница 127: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F 5 5 Motor System Circuit Diagrams Fig 3 5 8 CN1 B3 S1 C4 Part Loca No tion ...
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