Ramsey Electronics FZ-146 Specifications download pdf (Page 125)

FX-146 • 125

during transmit.

 M35: R107, near Y1, 10K (brown-black-orange).

 M36: D22, near VR1, type 1N914 or 1N4148. Orient the banded end

correctly. (+8T through R107 and D22 turns on Q6 to mute the audio

amp IC during transmit).

 M37: C62, near R113, .001 uf.

 M38: Diode D5, near R35, type 1N914 or 1N4148.

 M39: R31, near D5, 47K (yellow-violet-orange).

 M40: R33, also 47K (yellow-violet-orange).

 M41: R70, near diode matrix, 1K (brown-black-red).

 M42: Install the LED transmit indicator, D17, correctly identify the anode

side lead which is the longer of the two. Install the LED with full lead

length extending above board so that the LED can be positioned in the

front panel hole.

 M43a. Referring back to Section A if needed, prepare two 11" wires ( or

11" of 2 conductor wire) and solder one end of each to IN and GND

(MIC) between C86 and U1.

 M43b. Study microphone jack J4 and the above drawing. Solder the

other two wire ends to the jack lugs as shown.

STAGE M PROGRESS TEST

1. Check the PC board for wire scraps, untrimmed leads, etc.

2. Connect an ICOM compatible speaker-microphone to the Mic jack.

3. Connect DC power, antenna and speaker.

4. Turn the power switch 'ON' and verify that receiver still works

properly.

5. Select a steady signal or turn the squelch control so that the

1 2 ... 120 121 122 123 124 125 126 127 128 129 130 ... 144 145

No comments

Ramsey Electronics FZ-146 Specifications Page 125