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 C9 of IC306 (E537): LDMP = H/L
Pin Y19 of IC306 (E538): LDMN = L
Is tray closed?
Pin 5 of CN502:
TCLS = L
Y
N
Tray stops.
Pin C9 of IC306 : LDMP = H
Pin Y19 of IC306 : 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-520EKE
Page 4: ...SECTION 1 GENERAL DESCRIPTIONS 1 OPERATING INSTRUCTIONS SECTION 1 GENERAL DESCRIPTIONS ...
Page 69: ...Others Operating a TV with the Remote Control Before Calling Service Personnel Specifications ...
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Page 116: ...4 2 Power Supply Block Diagram Fig 3 4 2 ...
Page 119: ...m Q502 Q501 PUDET2 IC306 Fig 3 4 6 4 4 Main Block Diagrams 4 4 1 Servo System Block Diagram ...
Page 122: ...4 5 2 Output RGB Block Diagram Fig 3 4 9 ...
Page 128: ...Fig 3 5 5 5 3 2 Main Circuit Diagram ...
Page 129: ...5 3 2 Main Circuit Diagram ...
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Page 136: ...Fig 3 5 5 ...
Page 137: ...Fig 3 5 6 5 4 Output Circuit Diagrams 5 4 1 Output Circuit Diagram ...
Page 138: ...5 4 Output Circuit Diagrams 5 4 1 Output Circuit Diagram ...
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Page 143: ...Fig 3 5 6 ...
Page 145: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F RGB 5 4 2 Output RGB Circuit Diagram Fig 3 5 8 ...
Page 146: ...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 9 ...
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