background image

Replace new batter.

Problem

Indicator State

Settlement

No sound

TH.D. rise
higher.

No sound

No sound

No sound

One indicator is
lighted other
one isn't.

Have noise and
the radio noise.

Signal indicator 

&

 low batter

indicator are lighted.

Signal indicator is not lighted.

Digital display is not lighted.

AF signal indicator is not lighted

RF signal indicator is not lighted

One MIC works well,
other one doesn't work.

Signal indicator is lighted.

Push the power switch to the "ON" position,
check the battery inserting properly; ensure
the polarity right; If it still not work, now 
should replace a new battery.

To check and ensure that AC cable plugs
into the jack and input jack of receiver
with its two end; check and ensure that
the power jack works well and the power
voltage is proper.

And signal indicator flickers following the
sound Sound peak indicator flickers when
high frequency input; turn on the volume
controller to higher,check and ensure that
it is connected properly with the receiver
output connector and outer equipment.

To check the trouble microphone, ensure
that the channel choice is same as the
good one.

To check that jamming (other RF signal
source),and close them or take away them,
or change into other different frequency.

To check and ensure that the transmitter 

&

receiver match with frequency; away the
two antennas,pull them be angle in 45 ato
level; antennas is away from any metal;
take away the things between transmitter

&

 receiver; the man who holding

microphone can able to see the antennas.

SET 

IR 

SCAN 

VOL

SET 

IR 

SCAN 

VOL

5      10  15 

25 

30  35  40 

-30  -25  -20  -15  -10  -5 

0  PEAK

CH 

074 

743.500

MHz 

AF 

RF  

20

5      10  15 

25 

30  35  40 

-30  -25  -20  -15  -10  -5 

0  PEAK

CH 

018

754.500

MHz 

AF 

RF  

20

POWER 

SET 

IR 

SCAN 

VOL

SET 

IR 

SCAN 

VOL

5      10  15 

25 

30  35  40 

-30  -25  -20  -15  -10  -5 

0  PEAK

CH 

074 

743.500

MHz 

AF 

RF  

20

5      10  15 

25 

30  35  40 

-30  -25  -20  -15  -10  -5 

0  PEAK

CH 

018

754.500

MHz 

AF 

RF  

20

POWER 

Содержание WA-640

Страница 1: ...SET IR SCAN VOL SET IR SCAN VOL 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 074 43 500 MHz AF RF 20 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 018 54 500 MHz AF RF 20 POWER 6 6...

Страница 2: ...nditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not...

Страница 3: ...indicator flickers when high frequency input turn on the volume controller to higher check and ensure that it is connected properly with the receiver output connector and outer equipment To check the...

Страница 4: ...VOL 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 074 43 500 MHz AF RF 20 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 018 54 500 MHz AF RF 20 SET IR SCAN VOL SET IR SCAN VOL 220AC DC12 18V 500mA S...

Страница 5: ...ransmitter 1 The whole system Channel 200 channels Frequency Range 615 000 MHz to 664 750 MHz Band width 200kHz Frequency response 35Hz 20kHz Dynamic range 100dB T H D 0 5 S N ratio 90dB Valid distanc...

Страница 6: ...17 18 13 12 ON OFF...

Страница 7: ...0 5 0 PEAK CH 018 54 500 MHz AF RF 20 POWER SET IR SCA N VOL SET IR SCA N VOL 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 074 743 500 MHz AF RF 20 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 018...

Страница 8: ...4 500 MHz AF RF 20 POWER SET IR SCAN VOL SET IR SCAN VOL 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 074 743 500 MHz AF RF 20 5 10 15 25 30 35 40 30 25 20 15 10 5 0 PEAK CH 018 754 500 MHz AF RF 20...

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