Sony MDS-JA20ES Service Manual

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JIG FOR CHECKING BD BOARD WAVEFORM
The special jig (J-2501-149-A) is useful for checking the waveform of the BD board. The manes of terminals and the checking items to be
performed are shown as follows.
GND : Ground
I + 3 V: 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)
TE : TRK error signal (Traverse adjustment)
VC : Reference level for checking the signal
RF : RF signal (Check jitter)
RF
5P connector
6P connector
VC
TEO
IOP
I+3V
GND
RF
VC
TEO MDM-
3
MDM-5
MDM-6
IOP
I-3V
VC
RF
TEO
IOP
I+3V
GND
VC
RF
TEO
IOP
I+3V
GND
1
5
1
6

Sony MDS-JA20ES Specifications

General

Brand	Sony
Model	MDS-JA20ES
Category	MiniDisc Player
Language	English