20 dB to protect the RF amplifier from distortion when excessively strong signals are received. SECTION 4 CIRCUIT DESCRIPTION 4 - 1 4-1 RECEIVER CIRCUITS 4-1-1 RF ATTENUATOR CIRCUIT The attenuator circuit attenuates the signal strength to approx. Removing the antenna plug and shield U-plate 1 Unscrew the.3 Remove the cover panel in the direction of the arrow. Removing the cover panel 1 Unscrew 4 screws, A.Frequency resolution : 1 kHz (minimum) Ģ - 1 SECTION 2 INSIDE VIEWS ¡MAIN UNIT Bottom view Top view 0.01–1.8 MHz RF filter circuit 1.8–15 MHz RF filter circuit 15–30 MHz RF filter circuit VCO3 circuit Reference oscillator (X5: CR-629 12.8 MHz) VCO1, VCO2 circuits AGC control circ.ģ - 1 SECTION 3 DISASSEMBLY INSTRUCTIONS.Frequency range : *Specifications guaranteed 0.5–1300 MHz only.TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTIONS SECTION 4 CIRCUIT DESCRIPTION 4 - 1 RECEIVER CIRCUITS. DO NOT force any of the variable components. DO NOT open the receiver until the receiver is discon- nected from its power source. Make sure a problem is internal before disassembling the receiver. SERVICE MANUAL COMMUNICATION RECEIVER FOR COMPUTER iC-pcr100
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |