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 6 of IC604: LDMP = H/L
Pin 7 of IC604: LDMN = L
Is tray closed?
Pin 5 of CN502:
TCLS = L
Y
N
Tray stops.
Pin 6 of IC604: LDMP = H
Pin 7 of IC604: 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-1600
Page 1: ...DVD VIDEO PLAYER SERVICE MANUAL Oct 2000 s FILE NO 810 200010 SD 1600 ...
Page 5: ...SECTION 1 GENERAL DESCRIPTIONS 1 OPERATING INSTRUCTIONS SECTION 1 GENERAL DESCRIPTIONS ...
Page 79: ...4 2 Power Supply Block Diagram Fig 3 4 2 ...
Page 81: ...Fig 3 4 5 4 3 3 Front Display Power Switch Block Diagram ...
Page 83: ...Fig 3 4 7 4 4 2 Logical System Block Diagram ...
Page 84: ...4 5 Output Block Diagram Fig 3 4 8 ...
Page 87: ...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 94: ...5 3 2 Main Circuit Diagram Fig 3 5 5 ...
Page 95: ...5 3 2 Main Circuit Diagram ...
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Page 102: ...Fig 3 5 5 ...
Page 104: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 3 5 6 5 4 Output Circuit Diagram ...
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