Sony HCD-J3MD Service Manual page 12

JIG FOR CHECKING BD (MD) BOARD WAVEFORM
The special jig (J-2501-149-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.
GND : Ground
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)
TEO : TRK error signal (Traverse adjustment)
VC : Reference level for checking the signal
RF : RF signal (Check jitter)
12
Mechanism deck
RF
VC
TEO
IOP
I+3V
GND
RF
VC
TEO
IOP
I+3V
GND
CN110
6P connector
5P connector
1
RF
VC
TEO For MDM-3
IOP
5 I+3V
1
VC
RF
TEO
For MDM-5
IOP
I+3V
6
GND