SONY BKPF-105A
Manual de Servicio

2-6. Word Sync Output Waveform Confirmation

2-6. Word Sync Output Waveform Confirmation
Preparation 1. Connect each equipment. (Refer to Fig.1 in Section 21-2.) 2. Extend the AVM-6 board using an extension board. 3. Turn on the power of the main unit (PFV-D20/D50/ D100A/D200A/D300) and warm up for ten minutes. Measurement Equipment Oscilloscope Procedures 1. Confirm that S802 (P-8) is set to NORMAL. 2. Provide the output signal from the WORD SYNC OUT connector to the CH1 of an oscilloscope using a coaxial cable. At that time, terminate the input connector of the oscilloscope using 75 Z feedthrough terminator. 3. Observe a waveform in the DC coupling mode of the oscilloscope and confirm that the waveform below is displayed.
0.50 ±0.03 Vdc 0 Vdc _0.50 ±0.03 Vdc 20.8 µs (48 kHz)

4. Confirm that the waveform below is displayed when S802 is set to HIGH.
2.6 ±0.1 Vdc

0 Vdc 20.8 µs (48 kHz)

_0.3 ±0.1 Vdc

2-8(E)

BKPF-105A