Yamaha RIO3224-D Service Manual page 57

2-12. ANALOG test
Contents: Checks +48V voltage.
Checks GAIN settings.
Checks 17 – 32 channels for loopback.
Checks MUTE settings.
Checks vari-pitch (42.336 kHz, 100 kHz) settings.
<Parameters>
Item Gain
+48V ON –62dB
+48V OFF –62dB
GAIN MAX –62dB
GAIN MIN +10dB
AD 17-32ch GAIN MAX –62dB
AD 17-32ch GAIN MIN +10dB
MUTE ON +10dB
42.336kHz (44.1k -4%) +10dB
100kHz (96k +4.166%) +10dB
Precautions
The inspector must make judgment. For the judgment criteria,
refer to Tests (p. 71)
If NG occurs with Frequency characteristic:
Communication on the jig side may become unavailable and Fs
being tested may fail to become 96KHz. In such case, turn on
the power on the jig side again.
(Example of screen)
OUTPUT result
• Normal condition
The result is displayed in the OUTPUT window as follows.
Item
+48V ON OK: +48V ON
+48V OFF OK: +48V OFF
GAIN MAX OK: GAIN MAX
GAIN MIN OK: GAIN MIN
AD 17-32ch GAIN MAX OK: GAIN MAX
AD 17-32ch GAIN MIN OK: GAIN MIN
MUTE ON OK: MUTE ON
42.336kHz (44.1k -4%) OK: 42.336kHz (44.1k -4%)
100kHz (96k +4.166%) OK: 100kHz (96k +4.166%)
+48V DA Mute Thru ch
ON OFF INPUT 1–8ch
OFF OFF INPUT 1–8ch
OFF OFF INPUT 1–8ch
OFF OFF INPUT 1–8ch
OFF OFF INPUT 17–32ch
OFF OFF INPUT 17–32ch
OFF ON INPUT 1–8ch
OFF OFF INPUT 1–8ch
OFF OFF INPUT 1–8ch
Text indication
• In case of failure
The result is displayed in the OUTPUT window as follows.
Item
+48V ON NG: +48V ON
+48V OFF NG: +48V OFF
GAIN MAX NG: GAIN M
GAIN MIN NG: GAIN MIN
AD 17-32ch GAIN MAX NG: GAIN MAX
AD 17-32ch GAIN MIN NG: GAIN MIN
MUTE ON NG: MUTE ON
42.336kHz (44.1k -4%) NG: 42.336kHz (44.1k -4%)
100kHz (96k +4.166%) NG: 100kHz (96k +4.166%)
2-13. AES/EBU Test
Contents: Checks, using System Two, by OUTPUTting the
built-in oscillator to AES/EBU OUT.
Precautions
The inspector must make judgment. For the judgment criteria,
refer to Tests (p. 71)
If the jitter test results in NG:
The test object is locked on the jig side and the PLL within the
test object is applied. Perform only the VARIPITCH 100KHz
test of ANALOG inspection (Refer to 2-12). (The result may
be OK or NG. The clock on the jig side becomes 48KHz and
unlocked at 44.336KHz.) Then take measurement again with
the jitter which experienced NG.
(Example of screen)
OUTPUT result
• Normal condition
The result is displayed in the OUTPUT window as follows.
Item
AES/EBU 96kHz OK: AES/EBU 96kHz
AES/EBU 100kHz OK: AES/EBU VARIPITCH HI
AES/EBU 42.336kHz OK: AES/EBU VARIPITCH LO
• In case of failure
The result is displayed in the OUTPUT window as follows.
Rio3224-D
Text indication
Text indication
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