Kenwood TK-230 Service Manual

SERVICE MANUAL
©1989-10 PRINTED IN JAPAN
B51-8029-00(T) 1135
CONTENTS
GENERAL ...........:cccecseeececeeeescnnereeteteeatentasseeeeresseneeneeates 2
SYSTEM SET-UP ...........cccccessssecssnsneenecenereeaeenensestanenens 3
INSTALLATION ..........:.cccsccccccseeeeeecreesesnertseeaessoeeeeneaees 3
WRITING METHOD ..,...........c:c:scecescecseneneeenetecesesseeeeeeeees 7
BEEP SOUND ............cccceeecececseees ener es eeenneneeseneenenenenenaegs 16
DISASSEMBLY FOR REPAIR..............c.s:cccseseeeesesseeeeeeeres 17
BLOCK DIAGRAM ..............::c:cccneneesesenen re eeeetenetaeseeeeens 21
LEVEL DIAGRAM.............cccc:eceeeseveneesnenenaseeneraeeseteetesenes 23
CIRCUIT DESCRIPTION ............ccccceeeeces ee eeeeee et eneereeenen ees 24
SEMICONDUCTOR DATA ............:c:cseneneseseseneeeesseenseneens 36
DESCRIPTION OF COMPONENTS .............:::eeseteeeeeeeeeees 42
PARTS LIST ..........ccccceeseeeeeseeeseseeveesnenenananaeeesesenseeenaeas 43
DISASSEMBLY ..............:c:csceseeeecesentee eee eeeneteeeeneeeseeaneees 56
PACKING 1.0... cccceceececeees ener eseeennnesneeeeenennenses eas ea senna ea nanes 57
ADJUSTMENT. ..........:.ccccseceseseeseseccesnssnsnseenneenereeseeeenens 58
TERMINAL FUNCTIONG................:cccsceeseseneeneenenseneeneneens 63
CIRCUIT DIAGRAMS/PC BOARD VIEWS
IF (X58-3530-11) .........cececececnneveseeeeevereesreatnensneseceeers 64
VCO (X58-3570-XX).......ceeeeeeeececevenenenecsnescueeserstnenees 65
PLL (X58-3550-11)..........:cececesenevevevenecerersaeseessererecens 66
ANT SW (X58-3560-XX) ..... cc eeeeceeeeeeeeer sere reeenernenens 67
MIC AMP (X59-3520-10) ...........:ccesensseeveecerereereenrataes 68
DRIVE (X59-3540-11)..........::cecccseesereerseeseesrssersnentans 69
AF PA (X59-3560-10)........:c:ecceceveveeteerterereceeseeaeneeeees 70
AVR (X59-3570-10) «0... ceceeeeteteeeeeeeeeeteeeereeneereenecens 71
SW (X59-3580-10)........0:ccceseeseeeeeeesnseeeeereceeeenesenseeens 71
APC (X59-3590-10).......cceecereeteveeeererereereneserseneasenness 72
MIC UNIT (X42-3020-10)..........ccc:esscenenseeecersenenaeneees 73
CONTROL UNIT (X53-3210-XX)
S/No. OOB80050 ~ 0080425... ecccceeeceeeeerteresenens 73 -
S/NO. OOQ00G 1 ~ ....... eeeecee een ee eee eteneneneneesenerseneraenss 75
TX-RX UNIT (X57-3300-XX) ....... ce eeeeeeceeeeeneeereeeeeeees 77
SCHEMATIC DIAGRAM. .............::ccccesseseseeenaennenerseneeseese 79
KCH-2 (MULTI-CHANNEL TOP PANEL)..............::seceseeeees 83
KCT-1 (CLONING CABLE) ...........ccccseeseecetersteceaseesensreeees 85
KCT-2 (PROGRAMMING PLUG) ................ccceceeeeeeeeeeenens 85
KCT-3 (METERING CABLE) .............cccccecussseeceereeseeneneeens 85
KRA-6A, 6B, 6C (VHF STUBBY ANTENNA) ...............--05 85
KDM-4 (FOR 20-CH ALPHA-NUMERIC DISPLAY)............. 86
KDM-4(A) (FOR 100-CH ALPHA-NUMERIC DISPLAY)....... 86
KMC-10 (SPEAKER MICROPHONE) ............:0csseeeeseeeeeneess 93
KMC-11 (SPEAKER MICROPHONE
WITH STUBBY ANTENNA)...........cceseseeseseeteserenereeeseees 93
KSC-4 (RAPID CHARGER)........0.cscssssceseeresesteseseraeenseeeas 94
KSC-5 (REGULAR RATE CHARGER).............ccsceseseeeeeees 105
KSC-6 (COMPACT CHARGER)..............c::eeseeececseceaeeeees 109
Photo is TK-230. SPECIFICATIONS ...........ccecsceusscsveeceuseeetseseees BACK COVER