Service manual pmr446 fm transceiver.
Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-4088sr pmr446 fm transceiver at the time of publication. Never connect the transceiver to an ac outlet or to a dc power supply that uses more than 5.0 v. Such a connection could ca...
Table of contents section 1 specifications section 2 inside views section 3 disassembly instructions section 4 circuit descripiton 4-1 receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 transmiter circuits . . . . . . ....
Section 1 specifications 1 - 1 ‘ ‘ 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 • antenna impedance : 50 Ω • power supply requirement (negative ground) : 3 ×...
Section 3 disassembly instructions 3 - 1 rear panel b a b c d f g main unit e rf unit main unit i h • removing the rear panel 1 unscrew 1 screw a , and 5 screws b . 2 remove the rear panel in the direction of the arrow. • removing the rf unit 1 unscrew 2 screws h . 2 unsolder 2 points i , and remove...
Section 9 board layouts 9-1 main unit • top view 9 - 1 j303 j301 c377 c345 r397 q314 q315 c373 r395 c359 q306 r368 c363 c354 c343 r376 d305 d313 d314 d310 cl w305 r420 c355 c357 r426 j302 c369 s305 r400 c380 c379 r402 r387 r393 c366 c372 c360 sp+ 1 c375 r399 q310 q309 r386 c376 q317 r389 d317 r419 r...
1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-13914iz-c1- q © 2003–2004 icom inc..
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