4-2
2010
COMPONENT REPAIR GUIDE
1. ABNORMAL MD OPERATION
Abnormal disc reading or abnormal tray open/close.
Ö
Replace new MD and test if it is operated normally.
1-1.
Component
1) Traverse assembly
2) MD junction board
3) FFC cable from main board to MD
1-2. How to troubleshoot (Countermeasure)
1) Check the connection between main board and FFC cable, confirm the connection point.
2) Check the connection of MD junction board cable.
3) If all the cable connections are normal, replace the traverse assembly.
1-3. Service hint (Any picture / Remark)
◊
After changing MD(Traverse assembly), you must perform "SA Reset".
Refer to the next chapter "How to use the SA reset function".
1-3-1. BD572 series MD
For Pick-up
For
Sled
Motor
For
Sled
Motor
For Motors
For Motors
For Pick-up
For Spindle Motor
For Spindle Motor
For Loading
Motor & Tray
SW
For Loading
Motor & Tray
SW
< MD Bottom View >
< MD Top View >
< MD Top View >
< MD Bottom View >
1-3-2. BD592 series MD
Caution:
BD572 and BD592 have the same junction pcb.
But it can’t be compatible.(The motor FFC cable type is different.)
For Motors
For Motors
For Pick-up
For Pick-up
Summary of Contents for BD550
Page 11: ...MEMO 1 10 2010 ...
Page 93: ...1 System Part 1 7630 XTAL 27MHz 1 1 3 78 2010 WAVEFORMS ...
Page 97: ...5 AUDIO PART S PDIF 7630_AUDIO_SPDIF 14 14 17 11 12 3 82 2010 ...
Page 98: ...6 HDMI PART H_SDA 15 H_SCL 16 HDMI_CLK_N 17 HDMI_0_N 18 4 15 17 18 16 19 20 3 83 2010 ...
Page 99: ...7 MICOM I F PART 17 18 19 20 Tx0 19 Rx0 20 3 84 2010 ...
Page 107: ...3 92 2010 MEMO ...
Page 125: ...3 127 3 128 MEMO MEMO ...
Page 137: ...4 12 2010 2 IC704 R2A30209SP W02Z SPINDLE MOTOR AND 6CH ACTUATOR DRIVER 2 1 Block Diagram ...
Page 141: ...4 16 2010 MEMO ...