Audio Level Adjustment; Jumper Setting - Furuno IF-5200 Operator's Manual

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Audio level adjustment

DS1 and DS3 are 10 dB step attenuators for channel 1 and 2 microphone lines, respectively.
Set the DIP switch so that the audio output level between #4 and #5, or #7 and #8 of CN9 is
0 dBm (2.2 Vp-p).
Factory-setting: 10 dB (ON); 20 dB (OFF); 30 dB (OFF) and 40 dB (OFF).
(Turn on one element of DIP switch for attenuation.)
Channel 1 Input
(HANDSET1)
Channel 2 Input
(HANDSET2)
Location of DIP switches and jumper wire in IF-5200
Table below lists the function of DS2 and DS4.
DIP Switch
10 dB ATT
MIX

Jumper setting

Jumper wire JP1 functions as follows:
Short circuit (Factory-setting): "input" signals from CH1 and CH2 are output from
Open circuit:
Function
Attenuates speaker signal by 10 dB. Factory-setting: OFF
When set to OFF, either "mic" or "sp" signal is sent to the VDR
according to the PTT switch status. When ON, both "mic" and
"sp" signals are always sent to the VDR.
Factory-setting: OFF
OUT 1 port and OUT 2 port respectively
"input" signals from CH1 and CH2 are combined and
output from OUT 1 port.
7
DS1
CN9
JP1
#4 OUT
DS2
#7 OUT2
DS3
DS4
To VDR