Kenwood TS-440S Instruction Manual

Also see for TS-440S: Instruction manual Service manual Instruction manual Instruction manual Instruction manual

5-8-3. Digital d is play cal ibration1 . R e m o v i n g the top cover, filter u n it cover and t h ebott o m c o v e r s from r a d i o , a n d p l a c e t h e r a d i o o ni t s s i d e w it h t h e a n te n n a t u n e r a re a d o w n .2 . R e m ove the two screws that secure t h e re a r of theIF u n it to t h e c h a ss i s and raise t h e IF u n it u pt o w a r d s t h e front p a ne l . C o n nect the t w o p i n e n do f t h e s u p p l ied c a l i bration c a b l e to connector n u mber 8 o n t h e P L L u n it , a s s h o w n i n .the f i g u re .3 . C on n e c t t h e s i n g l e p i n e n d o f t h e c a b l e t o t h e C A Lterm i n a l p i n t h at is l o c ated a l o n g the b a c k edge o ft h e R F u n it , n e a r t h e l a rg e s h i e l d e d a re a .4. C on n ect y o u r a n t e n n a a n d t u n e to WWV .5 . U s i n g a s m a l l f l a t b l a d e d screwd river adjust t r i mm e r c a p a c itor TC 1 , n e a r c o n nector 8 of t h e P L Lu n it , for zero beat . Z e r o b e a t is t h e point w here thetwo audio tones a re osci l l a t i n g at t h e s l ow e st rate .PLL u n i tR e a r p a n e l245-8-4. O pt ional 1 0 H z d i s p l a y resolutionIf you w o u l d l i k e 1 0 H z resolution i n stead of the s u pp l ied 1 00 H z d i s p l a y re sol uti o n , c u t D 6 6 a s s h o w n c mt h e C ontrol u n i t .1 . R e m ove t h e t o p a n d bottom covers from the rad i o .2 . R e move t h e c o u n t e rs i n k screws ( 2 on e a c h s i d e )that secure the front panel to the c h assis and gentlyp u l l the front p a n e l forw a rd s .3 . R e m ove t h e 5 s m a l l round head screws that securet h e s h i e l d p l ate (2 o n t h e top and 3 o n t h e botto m )t o t h e front p a n e l , a n d remove the s h i e l d p l ate .4. C ut t h e l e a d of d i o d e D 6 6 l o c ated below t h e d i ps w i t c h o n t h e control u n i t .5 . R e verse s t e p s 1 . - 3 . to r e a se m b le t h e rad i o .Notes :1 . W h e n r e a s se m b l i n g t h e r a d i o m a k e s u re t h a t youd o not c u t o r p i n c h a n y w i res between t h e c h a s s i sa n d front p a n e l !2 . D o n ot a l t e r t h e sett i n g s o f the d i p s w itc h . Theya re factory adj u ste d , a n d d a m a g e o r m i soperationm a y resu l t .C o n t r o l u n i t5-8 - 5 . CW zero beat freq uency selectionY o u may select bet ween 800 Hz a n d 400 Hz zero beata d j u st m e nts i n the C W mode b y c u t t i n g d i od e D 7 3 o nt h e control u n i t .1 . R e m ove t h e t o p a n d bottom covers from t h e rad i o .2 . R e m ove t h e c o u nte r s i n k s c r e w s ( 2 o n e a c h s i d e )t h a t sec u re t h e front panel t o the chassis a n d gentlyp u l l t h e front p a n e l forw a rd s .3 . R e move t h e 5 s m a l l round head screws that s e c u ret h e s h i e l d p l ate ( 2 on t h e t o p a n d 3 on t h e botto m )t o t h e front p a n e l , a n d rem ove t h e s h i e l d p l ate .4. C ut t h e lead of d i o d e D 7 3 l o c ated b e l o w t h e d i psw itc h on t h e control u n i t .5 . R e ve rse steps 1 . - 3 . to re a s s e m b l e t h e r a d i o .Notes :1. W h e n re a s se m b l i n g t h e r a d i o m a k e s u re t h a t youd o not cut or pinch a n y w i re s bet w e e n t h e c h a s s i sa n d f r o n t p a ne l !2 . D o not a lter t h e sett i n g s o f t h e d i p switc h . T h e ya re f a c t o r y adjuste d , a n d d a m age o r m i soperationm a y res u l t .