Sony HCD-C7NT Service Manual page 6

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HCD-C7NT

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

: Tracking error signal (Traverse adjustment)

: Focus error signal

: Reference level for checking the signal

: RF signal (Check jitter)

I+3V

GND

Iop

I+3V

Iop

GND

CN105

I+3V

Iop

GND

for MDM-7X2B

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