Ramsey Electronics FZ-146 Specifications download pdf (Page 135)

FX-146 • 135

the lead preventing a good solder connection, you may wish to slightly

scrape away this coating on some parts.

 TX35. Install R119a, 1K (brown-black-red).

 TX36. Install D26, 1N914/1N4148 diode, observe correct placement of

the cathode band.

 TX37. Install C71, 39 pf.

 TX38. Install C19, 56 pf.

 TX39. Install C72, 39 pf.

 TX40. Install L12, the 2 1/2 turn coil prepared in stage TC. Insertion will

require you to spread the windings slightly to fit the holes. When

mounting these coils, do not allow the wire spirals to contact the PC

board ground plane area under them. The coil must sit slightly above the

board and not short against it.

 TX41. Install L22, another 2 1/2 turn previously wound. Again, be sure

you don't allow the coil to short against the ground area.

 TX42. Fabricate R115. Locate a 1K resistor (brown-black-red). Cut one

lead to a length of 1/4" and bend it into a small loop as shown. Carefully

hold it straight while soldering it to the board. This loop will provide a

handy point to attach a meter

probe.

 TX43. Install C63. Locate a .01

uf capacitor, bend out its leads

away from the body and insert

one lead into the PC board and

solder. Its other lead will

connect to the main PC board

later.

 TX44. Locate two scrap component leads at least 1/2" long. Solder

each lead to the PC board as shown. These leads will also attach to the

PC Board

Test point loo

Res istor

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Ramsey Electronics FZ-146 Specifications Page 135