Kenwood TH-K2AT Service Manual

Also see for TH-K2AT: Service manual Instruction manual Instruction manual

TH-K2AT/K2E/K2ET4DISASSEM BLY FOR REPAIRSpecial care and attention required for assembly1. Gluing to the key top (M IC element section)You must also glue on the speaker storage area and heapthe glue up until w ealthy glued on the speaker storage areaand the key top for w aterproofing the M IC element side ofthe key top. (Fig. 1)Fig. 12. Bending the LCD hardware fixture (J21-8456-03) tabs(1)Insert the tabs of the LCD hardw are fixture into four holesin the LCD installing position of the TX-RX PCB (TX-RX unitA/3). (Fig. 2)Heap the glue up until w ealthy glued on the speakerstorage area and the key top (M IC element section).Fig. 2(2)By pressing the LCD hardw are fixture from the componentside of the TX-RX PCB, you must bent all 4 tabs of the LCDhardw are fixture being visible from the foil side until thebases of each tabs are folded at least 45 degrees (Fig. 3). Ifthe bending angle of the tabs of the LCD hardw are fixtureis less than 45 degrees, a display error may occur.Bending positionNGNGM in 45degrees3. PTT PCB (TX-RX unit C/ 3) installation procedureInstalling the PTT PCB on the TX-RX PCB and chassis areas follow s:(1)Insert the PTT PCB connector (CN7) into the TX-RX PCBconnector (CN6) lightly.(2)Push three parts of the PTT PCB to contact tightly w ith thechassis. There may be a small gap betw een the connectors.(Fig. 4)Note: A double-side adhesive tape (J99-0376-04) is usedbehind the PTT sw itch. When reassembling the PTTPCB to the chassis, press the PTT PCB (under the PTTsw itch) so that the tape hold the PCB and chassissecurely.Fig. 3CN6ChassisPTT sw itchPTT PCB (C/3)OK A bitclearanceNoclearanceNGCN6CN7CN7Chassis PTT PCB (C/3)PTT sw itchFig. 4Push three parts of the PTT PCBto contact tightly w ith the chassis.(3)Tighten one screw in the PTT PCB.