(1) VCO
Is out of lock Needs to be Tweaked
Located On the RX board With ANT
socket facing you Its the can on the right hand side
The Bloody big one 4 holes Yep
you got it, for VHF Its the 2 bottom ones Be Careful With
The VHF one They Are Made from
Ferrite Will Break easy UHF Its the 2 Top ones Made from alloy
Here Is A file In text Format which
will Give you an idea of tuning this is not my original work
It was emailed to me with no author's
Name or anything else for that matter
>>>>>>>>>>>> TUNEUP.ZIP <<<<<<<<<<<<
The info in this file will Also
work with the UHF radio as well, just use
Common Sense When You Open Up the
Radio If it works Leave the Bloody thing alone
And it will Kiss YA butt
(2) The Damm Links Were Changed
No one told me Were the hell are they ??
These links Are located on the
Synth Board Looking down on radio with the front controls facing you
On the Right side there is a hole
next to the rubber Squash spacer usually white & the word NETT
Go a Couple Of Solder Blobs toward
your self and there are 2 links being left 304&302
right 303&305
to the right of these is some more
starting at the end nearest to you you have
314 313 306 307 309 308 311 312
(Shit
i would like to get a pic of this for ya But I dont Have the resources)
Radios on UHF have a common Division
Ratio of 160 well most have anyway
VHF have Div ratio of 400
Please Correct me if im Wrong Im open to suggestion
To get 25Khz Steps on UHF
you
need div of 160, links should be
(n/r not required) (req required)
302n/r
303req
304req
305n/r
306req
307n/r
308req
309n/r
311req
312n/r
313req 314n/r
For 12.5Khz Steps A div of
320 Is required
302req
303n/r
304n/r
305req
306req
307n/r
308req
309n/r
311req
312n/r
313req 314n/r
To get 25Khz Steps on VHF
you
need div of 400, links should be
302req
303n/r
304n/r
305req
306req
307n/r
308req
309n/r
311req
312n/r
313n/r 314req
For 12.5Khz Steps A div of
320 Is required
302req
303n/r
304n/r
305req
306req
307n/r
308req
309n/r
311req
312n/r
313req 314n/r
All this is
presuming you have a 10Mhz Crystal on the synth board
Synth
Board Pic
(3) I
Can Only Get DX to The end of the Street
RX Seems very low Refer to the
Tune up Text File
It will Tell You The Basics But
If You Must Know Now its the Big Mother
In the middle of the Rx board The
Can that is
UHF Has Nuts On it While VHF Has
Just the holes on the board
Connect A multi meter to the S
point on The RX board on the Mk2 its above SK202
MARKED S
(can also be used as a signal meter tap)
tune Slugs So you get Max Reading
on VM About 1.45v run up and down
the slugs till you are satisfied
ya have got the RX you Want
This Is only A course adjustment
only and requires A scope to do it properly
(4) Selcall CTSS RTB
Well Radio Must Have the I/O Expander
Kit In it Notably the NSC810AN
In socket IC415 & all its components
on the synth board
links 403 must be cut & 413
+ 405 fitted Just above IC413
Please Feel free to comment on this
page or If you want to add somthing, Correct A Blunder
Or Just Tell Me Its Crap Then Do
it
This Page Was put hear Because
You Asked For It So Enjoy
USE THIS INFO AT YOUR OWN RISK
I WILL NOT BE HELD RESPONSIBLE FOR ANY
DAMAGE YOU DO TO YOUR
EQUIPMENT
This Is For Educational Purpose Only
Email: Skinny
