Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]()
I would like to repair an Icom 735 that is not able to receive from 4
to 11 MHz. Two diodes (D11 & D13) in the receive bandpass filter section are blown (due to operation near another high power transmitter/antenna). These diodes are on the main board which can be accessed by removing the bottom cover. However they can only be replaced by unsoldering/soldering on the bottom of the main board. I have several questions for anyone who has made repairs to this rig: 1. It is easy to remove the screws holding down the board but there is extensive wiring connected to this board. Does the board have to be totally removed in order to get at this area? How difficult is this job? Any tips or tricks you might recommend? 2. The diodes are 1ss53 which is a Japanese switching diode. They are hard to find. Has anyone found a direct replacement for this part that gives equal or better performance? (I do not want to change any of the bias resistors). Thanks - Roger |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Useful Icom IC-R75 [R-75] Links for Facts and Information about the Icom IC-R75 [R-75] | Shortwave | |||
Last Day For Secret Icom Sale R-75 $425 | Shortwave | |||
SECRET ICOM SALE: R-75 $425 w/ DSP and Free shipping | Swap | |||
Last Day For Secret Icom Sale R-75 $425 | Swap | |||
SECRET ICOM SALE: R-75 $425 W/ DSP AND FREE SHIPPING | General |