36
19. PHONES (R – L): n.2 6.35 mm stereo jack outputs for hookup of the DD45, TDH39,
HDA280 or Insert earphones
20. HF PHONES: two 6.35 mm stereo jack outputs for hookup of the high frequency
headphones (optionals) for R37A-HF model only. For models R27A and R37A
manufactured since 2014 (detectable by the serial number of the audiometer),
the two outputs are reserved to the insert headphones. For audiometers
manufactured before 2014, the outputs are unused and closed with appropriate
caps
21. INSERT: 6.35 mm stereo jack output for hookup of the insertion transducer for
sound masking
22. BONE VIBRATOR: 6.35 mm stereo jack output for hookup of the bone conductor
unit
23. FREE FIELD (R – L): RCA outputs for ampli er hookup, required for performance of
tests operating in free eld mode
Connectors and components
rear section
19 20
21
22 23 24 25
26 27 32
3334
28
29
30
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