Alternatively, there is a check that can be done without A/V board. First, let the decoder generate pink noise on the audio outputs. Table 5-14 Ref. # Command Name 20a Remark
AudioPinkNoiseOn Audio Pinknoise On
1
Measure then these signals on level and frequency. Table 5-15 Signal
CH1 1.00 V~ MTB 500ns ch1+
CL06532065_010.eps 161100
Level between low/high low/high low/high low/high LOW/HIGH
Frequency 48kHz 0.02% 3.072MHz 0.02% 12.288MHz 0.02% N/A N/A
PCMLRCLK PCMSCLK PCMCLK PCMDATA SPDIF
Figure 5-11 PCMDATA
PM3380B
ch1
Put the pink noise off: Table 5-16 Ref. # Command Name 20b
1
Remark Audio Pinknoise Off
AudioPinkNoiseOff
CH1
2.00 V=
MTB20.0ns
ch1+
CL 26532053_067.eps 210502
Figure 5-12 PCMCLK
PM3380B ch1
1
CH1 2.00 V=
BWL MTB100ns
ch1+
CL 16532163_024.eps 230102
Figure 5-13 SPDIF To switch the audio signal OFF, press the STOP button on the front. Without A/V board, the switching levels are as follows: � DATA_LsRs and DATA_CL switch between low and high for pink noise. For sine, this is low. � PCMDATA0, PCMLRCLK, PCMCLK and PCMSCLK switches between low and high for both pink noise and sine. � SPDIF switches between LOW and HIGH
