Kenwood TS-120S Service Manual

CONTENTS
SPECIFICATION Sisccsccebstccessis hued chcuat cestode atnriteedwneay 3
DRT Bis eae cetera nh teach ates oe chorea gaa ee ie ects 3
reso Wd; | een Teed PES ee See ert nC ET Meee eT ne 4
GENERAL INFORMATION ..000....ccccccccccececeteeteteetetetee 4
CIRCUIT DESCRIPTION .000...00ccccccceccccccceeceeceesteceteseteneens 5
FUNCTIONAL DESCRIPTION ..00.0....0000cccccccceceeeeeteeserneee 6
OUTSIDE VIEWS 000.00. .cccccccccccccccsceeeccsececeteeneeeteeeeetesteesttenteennes 10
INSIDE VIEWS oo... ccccccssccsesssessessssessserssscssssvesseessesereessussveseveseees 11
PC BOARD/CIRCUIT DIAGRAMS
RF UNIT (X44-1260-01) o.....cccccccccccccescecteeeteetecteeeteeereenes 12
1F INET (X48: 1210201) cis cele aicxynesaniarencad 12
SWITCH (A) UNIT (X41-1140-00) .0..0..00 cect 13
SWITCH (B) UNIT (X41-1150-00) ooo. 13
RELAY UNIT (X41-1250-00) .....0.000:cccccseceeetteeteseeneenee 13
AF*GEN UNIT (X49-1110-01) .....0cccccecttteteteteteteens 13
PLL UNIT (X50-1490-00) 2.0.00... cccccceeeteetettetteeteeeneees 14
COUNTER UNIT (X54-1360-00) 0000.00.00. ceeeceettetetee 16
VFO UNIT (X40-1130-00) o..0.0..0. ccc eteereseeteeteeees 18
CAR UNIT (X50-1500-00) 0.0.0.0... eee cstetereerreneenes 18
FILTER UNIT (X51-1200-00)...0..0.0000cccccteeeeeeeten 18
FINAL UNIT (X56-1350-00) .0.0..00.ccccccee eect rene 19
PAR FS UIST vives elie el eure age eens ety 20
PACKING/DISASSEMBLY ...........00.0cccccecceeceeseentetetteeeneeeeenes 29
EXPLODED VIEW/DISASSEMBLY ..............0.0c:cccceteescetteeen 30
TROUBLESHOOTING 200.....c0cccccccccecccescecceeseeetseeeteeesteestteetenes 33
LEVEL DIAG AAM escicectuns Reco tatiana anced 36
ADJUSTMENTS ..00..0ccccccccccccccsececeeseecseceectecctecseeteesenteeeneeeeees 37
TEST AND ALIGNMENT SET-UP ..0..0..0.....0ccccccccetceseesteeteneees 41
PAO ihe certen crt tee cotati aue toda tae Amar teltee Gas ycakaan ta Seieneal aes uees 43
BLOCK DIAGRAM ..2.0...0occcccecec cece ecccescseesseetetessetsetenens 44
SCHEMATIC DIAGRAM... ccc cceceteseeteeteeteeees 45
MB 100/YVKES8C oi cecc sic ccceciti ces nec tecacecaed tedobed seas sthanadecasbadnaatecueds 48

Kenwood TS-120S Specifications

General

Brand	Kenwood
Model	TS-120S
Category	Transceiver
Language	English