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Summary of Contents for Icom IC-4088SR
- Page 1 SERVICE MANUAL PMR446 FM TRANSCEIVER...
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Page 2: Ordering Parts
INTRODUCTION This service manual describes the latest service information for the IC-4088SR PMR446 FM TRANSCEIVER at the time of publication. MODEL Antenna size SYMBOL Long IC-4088SR Short EUR-1 To upgrade quality, all electrical or mechanical parts and internal circuits are subject to change without notice or obligation. - Page 3 TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTIONS SECTION CIRCUIT DESCRIPITON RECEIVER CIRCUITS ........... . . 4-1 TRANSMITER CIRCUITS .
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Page 4: Specifications
SECTION 1 SPECIFICATIONS ‘ ‘ GENERAL • Number of channel : 8 channels (simplex; 446.00625–446.09375 MHz) • Type of emission : 8K50F3E (FM) • Frequency stability : ±2500 Hz (±5.6 ppm) • Frequency resolution : 12.5 kHz : 50 Ω •... -
Page 5: Disassembly Instructions
SECTION 3 DISASSEMBLY INSTRUCTIONS • • REMOVING THE REAR PANEL REMOVING THE RF UNIT 1 Unscrew 2 screws H. 1 Unscrew 1 screw A, and 5 screws B. 2 Remove the rear panel in the direction of the arrow. 2 Unsolder 2 points I, and remove the RF unit. RF unit Rear panel Main unit... -
Page 6: Board Layouts
SECTION 9 BOARD LAYOUTS 9-1 MAIN UNIT • TOP VIEW J300 to the RF unit J2 J303 J301 R396 C364 C354 C347 J300 C343 Q307 C361 R376 C324 J300 R374 R365 R392 R384 R366 R394 R433 R357 C339 R378 C348 C335 C346 C317... - Page 7 S-13914IZ-C1-q 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan © 2003–2004 Icom Inc.
- Page 8 Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual Icom IC-4088SR Service Manual...