Sony PCM-3348HR Installation Manual page 22

2-2. Periodic Inspections
Item
Electrical section
Mechanical section
2-4
Details
1. Check the power supply voltage.
2. Adjust the REC current (digital section, CTL, TC, A1, A2).
3. Check the playback characteristics for digital audio track.
4. Check the ARP recording and playback.
5. Check the DAD characteristics.
1 Measure the noise ratio.
2 Measure the frequency characteristics.
3 Measure the distortion rate.
1. Punch in/out functions.
2. Function control system.
3. Shuttle function.
PCM-3348HR