3-8. Confirmation of MUTE Operation
3-9. Check of Pre-emphasis Operation
3-8. Confirmation of MUTE Operation3-9. Check of Pre-emphasis Operation
Measurement equipmentsMeasurement equipments
Audio distortion meter, BKPF-202Audio distortion meter, BKPF-202
ProceduresProcedures
1. By an audio distortion meter, provide the signal of 11. By an audio distortion meter, provide the signal of 15
kHz, +4 dBm to the [L] input of BKPF-201.kHz, +4 dBm to the ANALOG IN AUDIO [L] of
2. Confirm the D124 (A3)/AD-131 lights and the signalBKPF-201.
of + 4 dBm is provided to the ANALOG OUT AUDIO2. Confirm the signal of 15 kHz, +4 dBm is provided to
[L] of BKPF-202.the ANALOG OUT AUDIO [L] of BKPF-202.
3. Select the S305 (B8)/AD-131 to the ON. Confirm the3. When the S301-1 (A3)/AD-131 is selected to the ON,
D406 (B8)/AD-131 lights in red, the output of BKPF-the D112 (A3)/DA-116 lights in green and the output
202 is a no sound and the D124 (A3)/AD-131 islevel of BKPF-202 meets the below specification.
lighting.Specification : +4.0 ? 1.0 dBm
4. By an audio distortion meter, provide the signal of 14. By an audio distortion meter, provide the signal of 15
kHz, +4 dBm to the [R] input of BKPF-201.kHz, +4 dBm to the ANALOG IN AUDIO [R]
5. Confirm the D224 (A3)/AD-131 lights and the signalconnector of BKPF-201.
of +4 dBm is provided to the ANALOG OUT AUDIO5. Confirm the signal of 15 kHz, +4 dBm is provided to
[R] of BKPF-202.the ANALOG OUT AUDIO [R] of BKPF-202.
6. Select the S305 (B8)/AD-131 to the ON. Confirm the6. When the S301-2 (A3)/AD-131 is selected to the ON,
D406 (A8)/AD-131 lights in red, the output of BKPF-the D113 (A3)/DA-116 lights in green and the output
202 is a no sound and the D224 (A3)/AD-131 islevel of BKPF-202 meets the following specification.
lighting.Specification: +4.0 ? 1.0 dBm
3-6 (E)BKPF-201 |