Ramsey Electronics CB1 Manual de instrucciones

CB-1 • 1 Ramsey Electronics Model No. CB1 Getting tired of repeating yourself? Find yourself saying the same thing over and over? Here&apo

CB-1 • 10 switches. Switch bounce is literally mechanical bounce that results from the pressing of the switch. High speed electronic circuits will see

CB-1 • 11 The circuitry you're working on now is the display driving circuit. When the input to the circuit is low (near ground or zero volts),

CB-1 • 12 r 49. Install R7, 2.2K ohm resistor (red-red-red). This part plays a role in the keying of an attached radio. Depending on what type of micr

CB-1 • 13 Take a break and get your soldering skills saved up for the construction of the display board. Locate the small display board and install t

CB-1 • 14 from the backside of the display board through the 3/8" hole. The tab on the potentiometer must be removed. Attach the mounting hardwar

CB-1 • 15 labeled MIC1 near VR1. NOTE: In steps 84 through 88, connections CCW, SW-B, W, CW and SW-A are labeled on your board. These connections

CB-1 • 16 r 88. Connect a 7" piece of black wire from the pin labeled SW-A on the potentiometer to the hole labeled SW-A on the main board near V

CB-1 • 17 r 6. Switch the voice recorder to mode 6 and address 1. Press and hold down the start button while talking into the microphone. Release the

CB-1 • 18 PROBLEM: A segment or two is out on one or both displays, or odd numbers are displayed. SOLUTION: These problems most often occur right b

CB-1 • 19

CB-1 • 2 RAMSEY TRANSMITTER KITS · FM100 Professional FM Stereo Transmitter · FM25 Synthesized Stereo Transmitter ·AM1, AM25

CB-1 • 20 MICROPHONE CONSIDERATIONS The CB-1 has a built-in miniature electret condenser microphone which is ideal for stand alone operation. If you

CB-1 • 21 CB-1 PARTS LAYOUT DIAGRAM

CB-1 • 22 The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved without contacting t

CB-1 • 23 CB-1 "CHATTERBOX" VOICE RECORDER Quick Reference Page Guide Introduction to the CB-1 ... 4 How it works ...

CB-1 • 3 CB1 CHATTERBOX RECORDER KIT Ramsey Publication No. MCB1 Price $5.00 TABLE OF CONTENTS Introduction to the CB-1 ... 4 How it w

CB-1 • 4 CB-1 CHATTERBOX VOICE RECORDER FEATURES • LED display for mode and address • Up to five separate four second addresses can be accessed • E

CB-1 • 5 occur, the manual will lead you through step by step in the troubleshooting guide until you find the problem and are able to correct it. C

CB-1 • 6 RAMSEY "LEARN-AS-YOU-BUILD RECORDER ASSEMBLY STRATEGY" The CB-1 voice recorder kit includes two PC boards, one being the main boa

CB-1 • 7 RAMSEY CB-1 CHATTERBOX PARTS LIST SEMICONDUCTORS r 1 ISD1020A sound recorder IC [U4] r 1 MC68HC705K1 microprocessor IC [U3], 1

CB-1 • 8 CONSTRUCTION OF THE CB-1 VOICE RECORDER The first thing we will do is locate the two PC boards used with this kit, and then find where we wi

CB-1 • 9 r 10. Install C19, .01uF disc capacitor (marked .01 or 103 or 10nF). This capacitor prevents DC voltage on the microphone from entering the I