Caution - JRC NDR-91 Instruction Manual

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CAUT ION
l.
Read this instruction manual thoroughly before turning on this receiver.
2.
When connecting the BK cable and other cables, refer to Fig. 3.3 of Paragraph 3.3.
3.
When the transmitting waves are strongly induced in the receiving antenna, take the counter-
measure described in Paragraph 3.2.
4.
Do not turn semifixed resistors, high frequency transformers, trimmer capacitors, etc.
mounted on the printed circuit board unless absolutely necessary, because they are all
preadjusted at the factory.
5.
If the MHz knob is set at inadequate position, the receiver is muted. Therefore, the MHz
knob must be set correctlv.
6.
This receiver has low-voltage-operable ICs and transistors. Be sure to turn off both power
switohes when connecting or removing the printed circuit board and cables to external
equipments.
1.
If the AUX mode is selected at a condition where additional crystal is not provided, the
receiver operates actually in the DSB mode even though the AUX mode is indicated on the
front panel.
8.
The illumination of LEDS (Receiving frequency, Mode and Bandwidth indicators) is
gradually reduced as turning f-DlMMEil
knob counterclockwise. Finally they fade out
completely at the minimum position.
().
When the ntode is except SSB and Frequency Display shows the tiequency between
000.0kH2 and 001.4kH2, MHz LED displays the frequerlcy obtained by adding lMHz to
the display of MHz Selector Switch. In such a case, Receiver receives the frequency dis-
p l a y e d b y L E D .
10. When the rnode is except SSB, the upper limit of the received fiequency to be displayed is
3000 | .4kHz and the lower limit is 001 .5 kHz.
- l -

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