Kenwood TH-22A Service Manual

Also see for TH-22A: Instruction manual Instruction manual Instruction manual Instruction manual Instruction manual

144MHz FM TRANSCEIVERTH- SOAVAT/ ESERVICE MANUAL © 1993-10 PRINTED IN JAPANB51-8239-00 (B) 1408KENWOODKnob (ENCODER)(K29-4875-14)Antenna(T90-0472-05)Front glass(B10-1202-03)Knob (VOL)(K29-4874-14)Knob (PTT) Knob (4 key)(K29-4876-03) (K29-4878-03)3 : am —C ase assy(oe dare) : laevis FM TRANSCEIVER TH-22E (AQ2- 1763-03): TH-22A(A02-1 764-03): TH-22ATKENWOOD_Mem(A02-1765-03):TH-22EKey board assy(S79-041 2-05): TH-22ATOption (DTP-2): TH-22A/EPHOTO is TH-22E (WITH DTP-2)———— CONTENTS ——_—DESTINATION LIST...sssssssssssssssssssssssssssssesssesessersnenere2DISASSEMBLY FOR REPAIR ....ssssssssssssssssssssessssnsee 3CIRCUIT DESCRIPTION ....ssssssssossssssssssesssesserersserorsns 5SEMICONDUCTOR DATA. csssscsssssssssessssccessnssesenseans15DESCRIPTION OF COMPONENTS. .v.sssesssssssssssssses22PARTS LIST .ccccssssssssssssossssssesspsssssssssorssssasecaseessanenens24EXPLODED VIEW ...sssssssssscsssssssssessessessssstsenssnsnsesnses 36PACKING... 10.37TERMINAL FUNCTION o.csccscsccscsscesseeseeseonrere38ADJUSTMENT .scscsctectantenssctctntrtectenvestnesnsnene 40PC BOARD VIEWSVCO UNIT (X58-4090-00).....scsssssssssssssssssssssseesee 44TX-RX UNIT (X57-437X-XX) (C/4)scssseessssessssseseses 45TX-RX UNIT (X57-437X-XX) (D/4).sssssssssssssssssssse46TX-RX UNIT (X57-437X-XX) (AVA) sescsscssssssssssssrens 47TX-RX UNIT (X57-437X-XX) (B/A) sssssscsssssssseseseeee51SCHEMATIC DIAGRAM ....sccssssssssssssssssssssssssssssssrens 55BLOCK DIAGRAM ....sccscsssssssssssssssssssssorssssssssscseseees59LEVEL DIAGRAM ...cscccossssssssssssessssesssesorsssesssssseeseeesOFDTP-2 (DTMF KEYPAD) .cssssssssssssssssssssssssssssssssessenes62BC-17 (WALL CHARGER)... sessens 62BT-9 (BATTERY CASE)... - 62PB-30, 32 (STANDARD BATTERY. PACK).. we 62PB-33 (LONG LIFE BATTERY PACK) srcsecsosun..63PB-34 (HIGH POWER BATTERY PACK). 63SC-37, 38, 39, 40 (SOFT CASE)... sesnaseeseees 63SPECIFICATIONS ...ccssssssssssssssssessssesee.BACK COVER