
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 IC601: LDMP = H/L
Pin 7 of IC601: LDMN = L
Is tray closed?
Pin 5 of CN502:
TCLS = L
Y
N
Tray stops.
Pin 6 of IC601: LDMP = H
Pin 7 of IC601: LDMN = L
Laser OFF
Display: INSERT DISC
Monitor screen: NO DISC
Y
Y
NG
N
N
2
Fig. 1-3-1
Содержание SD-1200
Страница 1: ...DVD VIDEO PLAYER SERVICE MANUAL Feb 2000 s FILE NO 810 200001 SD 1200 DIGITAL VIDEO ...
Страница 77: ...4 2 Power Supply Block Diagram Fig 3 4 2 ...
Страница 79: ...Fig 3 4 5 4 3 3 Front Display Power Switch Block Diagram ...
Страница 81: ...Fig 3 4 7 4 4 2 Logical System Block Diagram ...
Страница 82: ...4 5 Output Block Diagram Fig 3 4 8 ...
Страница 84: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 3 5 2 ...
Страница 85: ...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 93: ...Fig 3 5 5 ...
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Страница 98: ...A2 p65 1 ...
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Страница 100: ...2000 02 23 15 15 ...
Страница 101: ...Fig 3 5 5 ...
Страница 104: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 3 5 7 ...
Страница 116: ...4 EXPLODED VIEWS 4 1 Packing Assembly Fig 4 4 1 ZF20 ZF01 ZF17 ZF10 ZF11 ZF23 ZF30 ZK04 ZK01 ZK03 ZK02 ZF17 ZK09 ...
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