Onkyo TA-RW255 User Manual

HA12167FB/HA12169FB
24
MPX ON/OFF Switch
MPX-OFF mode means that signal from input amp doesn’t go through the MPX filter, but signal goes
through the NR circuit after being attenuated 3 dB by internal resistor. Refer to figure 5. For not cause any
level difference between MPX-ON mode and MPX-OFF mode, it is requested to use MPX-filter which has
definitely 3 dB attenuated. And when applying other usage except figure 5,
take consideration to give bias voltage to NR-IN terminal by resistor or so on because internal of NR-IN
terminal has no bias resistor.
Application as for the Dubbing Cassette Deck
HA12167FB/HA12169FB series has unprocessor signal from recording out terminals during playback
mode. So, it is simply applied for dubbing cassette decks.
IA
6 k
14 k
MPX ON
MPX OFF
3 dB ATT
X 1
1.5 k
IA OUT NR IN TPVref
NR
processer
2.4 k
MPX
filter
5.6 k
10 mH 220 P
BIAS TRAP
Figure 5 MPX ON/OFF Switch Block Diagram

Onkyo TA-RW255 Specifications

General

Brand	Onkyo
Model	TA-RW255
Category	Cassette Player
Language	English