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BKPF-L752
D3
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RV401
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1-3. Name and Function of Switch/Indicator/etc.
Main Board (DAC-38 Board: Side A)
Switches/gain adjusting VRs (Factory default settings are indicated by a
\\
\\
\ mark)
No. Ref. No. Name Function
8 S3 Setting switch
S3-1 TEST 1 ON: Test mode (Factory use)
\ OFF: Normal mode
S3-2 TEST 2 ON: Test mode (Factory use)
\ OFF: Normal mode
S3-3 AES/EBU 1 DE-EMPHASIS ON: When the de-emphasis is on for the signals input to the AES/EBU IN 1
connector
\ OFF: When the de-emphasis is off for ones
S3-4 AES/EBU 2 DE-EMPHASIS ON: When the de-emphasis is on for the signals input to the AES/EBU IN 2
connector
\ OFF: When the de-emphasis is off for ones
4 RV405 CH1 GAIN Adjusts the audio output level of the each channel within the range between _14 dB
5 RV406 CH2 GAIN (_10 dBm output) and +4 dB (+8 dBm output) at _20 dB FS input.
6 RV407 CH3 GAIN n
7 RV408 CH4 GAIN At the factory-out, they were adjusted so as to convert a digital audio signal _20 dB
FS into an analog audio signal +4 dBm.
Indicators
No. Ref. No. Name Color Function
1 D3 POWER (±12 V) Green/red Green: A power of ±12 V is normal
Red: A power of ±12 V is abnormal
2 D814 AES/EBU 1 IN Green/red Green: When a digital audio signal is input to the AES/EBU IN 1 connector
Red: When no signal is normally input to the AES/EBU IN 1 connector
(including the case where no signal is input)
3 D815 AES/EBU 2 IN Green/red Green: When a digital audio signal is input to the AES/EBU IN 2 connector
Red: When no signal is normally input to the AES/EBU IN 2 connector
(including the case where no signal is input)
1-3. Name and Function of Switch/Indicator/etc.