@ElbertPoh
That sections trains timetable No BIG change as after 26 MAR.
(No announced in New timetable update news)
Maybe only dep/arr time will change some minutes moved.
(fare, total traveling time, operate numbers and are NOT.)
But...
Basically No direct trains (as dep/arr Shinagawa) btw late 6:00s and until late 9:00s still continued.
BC - Shinagawa - (Tokyo) - Ueno - is one of special section
especially in every "Morning rush" hours super busy cannot insert LtdExp together.
If insert together make another regular commuter trains will be stuck
and also illegal ride(as no Ltdexp ticket holder) increasing no good. (seeds of big troubles)
(LtdExp using only 2 doors each cars need for stopping long time)
(regular commuter train using 3or4 doors so getting out/in under 60 sec possible)
This is recent timetable(until 25 May) of JR Shinagawa Ueno-Tokyo line
for Mito,Katsuta and Iwaki as direct operating to JR Joban line of Weekend(SAT,SUN) and National Holidays.
http://www.jreast-timetable.jp/1602/timetable/tt0788/0788111.htmlDep numbers in RED are all LtdExp.
Regular commuter train's timetable announced another page.(same track ususing)
This service planning diagram is easier for understanding about morning rush operating real numbers.
(but older one of weekday's/not latest and weekend one)
http://n.mynv.jp/series/diagram/059/images/002l.jpg Image top 6,7,8,9 means time (a.m.).
Shinagawa 品川 Tokyo 東京 Ueno 上野 Katsuta 勝田
All fat lines in RED arel LtdExp. (other colors are regular commuter train "Local" and "Rapid").
So in that time all LtdExp from/to Katsuta(more far) train
LtdExp "Hitachi" and "Tokiwa" will be fixed only dep/arr from/to Ueno.
(Ueno is different station layouts and ticket gate using against Shinagawa)
So You cannot take direct train to Katsuta from Shinagawa need transfering at Ueno
Ueno-Tokyo line[7] or [8] to Joban line platform of lower floor [16] or [17].
(bellow transfering vid is not [1] to [14] but same way as to lower floor)
https://youtu.be/0t8SkbufmJU Both LtdExp(dep Ueno) seat reservation possible at Shinagawa ticket office
and online in asvance as before entering Japan paying by credit card(not all brands).
https://www.eki-net.com/pc/jreast-shinkansen-reservation/English/wb/co...Seat ticket sales starts from just one month before 10:00am (JST).
https://www.eki-net.com/pc/jreast-shinkansen-reservation/English/wb/co...