9
MD SECTION
JIG FOR CHECKING BD (MD) BOARD WAVEFORM
The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items
to be performed are shown as follows.
I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser)
IOP : For measuring IOP (Check the deterioration of the optical pick-up laser)
GND : Ground
TE : Tracking error signal (Traverse adjustment)
FE : Focus error signal
VC : Reference level for checking the signal
RF : RF signal (Check jitter)
I+3V
CN105
IOP
TE
VC
GND
FE
RF
I+3V
IOP
GND
TE
FE
VC
RF
I+3V
IOP
GND
TE
FE
VC
RF
1
7
for
MDM-7X2
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.
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1
6
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3
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1
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1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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