TOC doesn't read.
Limited switch is closed.
Is laser on?
Is FOK normal?
Does normal RFsignal at
D103 pin 39?
Does normal RFIN at
D101(D1870) pin 176?
Have sound,
no picture.
1. Check connection between D1870
and D1890.
2. Check D1890 and peripheral components.
1. Check connection between 39 pin of
D1890 and 7 pin of XS100.
2. Check connection between XS100 and
pickup.
3. Replace pickup.
1. Refer to laser guide.
2. Check slide motor and connections
to main board.
1. Check ATAPI channel.
2. Check VS3811 and peripheral components.
3. Check BT865 and peripheral components.
4. Check connection between VS3811 and
BT865.
Yes
Yes
Yes
Yes
No
No
No
No
J TOC abnormal
Normal
Have picture,
no sound.
1. Check ATAPI channel.
2. Check
and peripheral components.
3.
VS3811
Check BT865 and peripheral components.
4. Check connection between VS3811 and
BT865.
Yes
No
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