Modifications for the Kenwood TR-9350


19-07-1998 TR-9350/30 RX Interference

Some users have reported FM Broadcast or TV video carrier interference to the receiver. Normally the TR-9350/30 has excellent two signal intermodulation characteristics. For a reported case of Broadcast or TV IMD the following modification may reduce or eliminate the interference.

Parts Required

Qty Description
1 MI-308 Diode
Procedure

1. Remove the top and bottom covers.
2. Remove the 4 screws that secure the heat sink assembly to the rear of the set. Gently pull the heat sink assembly to the rear, to allow access to the final unit X54-1270-1-,11.
3. Remove the 5 screws securing the PC board to the heat sink. Remove the 2 screws securing the final module (M57733/M57726) and remove the screw that secures Q2 to the heat sink. Carefully desolder L9 from the antenna connector. (Dont change the spacing of the coils!!!)
4. Gently fold the assembly over to allow access to the foils side of the final assembly and remove D2, and replace it with the MI-308 diode.
5. Reverse steps 1-3 to reassemble. Reconnect L9 but don't change the spacing of the coils. Use heat sink compound when replacing the final module.