3. TROUBLESHOOTING
3-1. Main Circuit
3-1-1. Servo System
(1) Initial Operation after Power ON
Power ON
Send each LSI hard RST
command and initial command.
Pickup head is positioned at
transmission initial position.
Is tray closed?
Pin 5 of CN502,
TCLS=L
Disc presence/absence and
disc judgement
Is a disc present?
DVD or CD initial setting.
DVD single
Initial setting.
DVD dual
Initial setting.
CD
Initial setting.
To each disc playback process.
DVD single (single-layer)
DVD single
(single-layer)/DVD dual
(dual-layer)/CD?
CD
DVD dual (dual-layer)
1
Tray close operation
Pin 126 of IC605: LDMP = H/L
Pin 127 of IC605: LDMN = L
Is tray closed?
Pin 5 of CN502:
TCLS = L
Y
N
Tray stops.
Pin 126 of IC605: LDMP = H
Pin 127 of IC605: LDMN = L
Laser OFF
Display: INSERT DISC
Monitor screen: NO DISC
Y
Y
NG
N
N
2
Fig. 1-3-1
Summary of Contents for SD-110EB
Page 80: ...4 2 Power Supply Block Diagram Fig 3 4 2 ...
Page 82: ...Fig 3 4 5 4 3 3 Front Display Power Switch Block Diagram ...
Page 83: ...µ Fig 3 4 6 4 4 Main Block Diagrams 4 4 1 Servo System Block Diagram ...
Page 84: ...Fig 3 4 7 4 4 2 Signal System Block Diagram ...
Page 85: ...Fig 3 4 8 4 5 Output RGB Block Diagram ...
Page 88: ...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 ...
Page 91: ...5 3 2 Main Circuit Diagram Fig 3 5 5 ...
Page 92: ...5 3 2 Main Circuit Diagram ...
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Page 99: ...Fig 3 5 5 ...
Page 101: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 3 5 7 5 4 Output RGB Circuit Diagram ...
Page 102: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F 5 5 Motor System Circuit Diagram Fig 3 5 8 ...
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