Intek H 520 Plus free download

File name H-520_Service_Manual_English.pdf

Model No: Customer : 3420 Model No: H 520 PLUS Drawing No: Rev. Date: H 520 PLUS Service Manual Created by: For Stage: Approved by: Release Date: Rev.No: Page: 1 Of 57 Model No: Customer : 3420 Model No: H 520 PLUS Drawing No: Rev. Date: Table of Contents Page Specifications Test and Alignment Procedure Block Diagram Schematic Diagram Printed Circuit Board Channel Frequency Charts Parts List Semiconductor Voltage Chart Semiconductor Lead Assignment and Block Diagram Exploded View Parts List Exploded View 3 8 13 14 23 25 40 45 53 56 57 Created by: For Stage: Approved by: Release Date: Rev.No: Page: 2 Of 57 Model No: Customer : 3420 Model No: H 520 PLUS Drawing No: Rev. Date: SPECIFICATIONS 1. GENERAL Channels... 400 Ch AM/FM 4W Frequency Range...25.615 to 30.105 MHz FrequencyControl...PLL Operating Temperature Range...-10° / +50°C DC Input Voltage...9.0 V DC ±15% Size...140(L) X 60(W) X 30(H) mm Weight...0.50 kg 2. RECEIVER Receiving System...Dual Conversion Super Heterodyne Intermediate Frequency...1st IF: 10.695 MHz, 2nd IF: 455 MHZ Sensitivity...0.5 µV for 20 db SINAD in FM mode Audio Distortion...Less Than 8% @ 1 KHz Image Rejection...60 dB Adjacent Channel Rejection...60 dB Signal/ Noise Ratio...45 dB Current Drain at standby...60 mA 3. TRANSMITTER Output Power...4W @ 9.0 V DC Modulation...FM: 1.6 KHz ±0.2 KHz F