1-33
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
Summary of Contents for SD-1300A
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Page 57: ...Fig 3 4 5 4 3 3 Front Display Power Switch Block Diagram 3 9 3 10 ...
Page 58: ...m Fig 3 4 6 4 4 Main Block Diagrams 4 4 1 Servo System Block Diagram 3 11 3 12 ...
Page 59: ...Fig 3 4 7 4 4 2 Logical System Block Diagram 3 13 3 14 ...
Page 71: ...5 3 2 Main Circuit Diagram Fig 3 5 5 3 29 3 30 3 31 3 32 ...
Page 73: ...3 34 1 3 4 A B C D E G 2 5 F 5 4 Motor System Circuit Diagram Fig 3 5 7 ...
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Page 89: ...4 6 5 PARTS LIST ...
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