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KF-42SX300 KF-42SX300K KF-42SX300U
Pages
88
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43.39 MB
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Document
Service Manual
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Device
TV
File
kf-42sx300-kf-42sx300k-kf-42sx300u.pdf
Date

Sony KF-42SX300 / KF-42SX300K / KF-42SX300U Service Manual ▷ View online

- 5 -
KF-42SX300
RM-906
Connected
Not Connected (open)    * at 20Hz - 20kHz
Pin No
1
2
4
Signal
Signal level
1
Audio output B
(right)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
2
Audio input B
(right)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
3
Audio output A
(left)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
4
Ground (audio)
5
Ground (blue)
6
Audio input A
(left)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
7
Blue input
0.7 +/- 3dB, 75 ohms positive
8
Function select
(AV control)
High state (9.5-12V) : Part mode 
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF
9
Ground (green)
10
Open
11
Green
Green signal : 0.7 +/- 3dB, 75 ohms, 
positive
12
Open
13
Ground (red)
14
Ground (blanking)
15
_
_
Red input
0.7 +/- 3dB, 75 ohms, positive
_
(S signal Chroma 
input)
0.3 +/- 3dB, 75 ohms, positive
16
Blanking input
(Ys signal)
High state (1-3V) Low state (0-0.4V)
Input impedence : 75 ohms
17
Ground (video 
output)
18
Ground (video 
input)
19
Video output
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
20
_
_
Video input
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
_
Video input
Y (S signal)
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
21
Common ground
(plug, shield)
21 pin connector
19
17
15
13
11
9
7
5
3
1
20
18
16
14
12
10
8
6
4
2
21
Rear Connection Panel
Front Connection Panel
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- 6 -
KF-42SX300
RM-906
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P
SECTION 1  SELF DIAGNOSIS FUNCTION
Table 1
How to enter into Table 2
1.
Turn on the main power switch of the TV set.
2.
Program Remote Commander for Operation in Service
Mode. [See Page 27].
3.
Press ‘VIDEO’ ‘VIDEO’  > ‘MENU’ on the Remote
Commander.
4.
Using the Remote Commander, Scroll to the  ‘Error Menu’
item using the down arrow key, then press the right arrow
key.
5.
The following table will be displayed indicating the error
count.
Table 2
Note: To clear the error count data press ‘80’ on the Remote
            commander.
Flash Timing Example : e.g. error number 3
StBy LED
ON
ON
ON
OFF
OFF
 LE-4A Self Diagnostic Software
The identification of errors within the LE-4A chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the
event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous
flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant
device number will be displayed through the LED (Series of flashes which must be counted) See table 1, non fatal errors are reported using this
method. Each time the software detects an error it is stored within the NVM. See Table 2.
e
g
a
s
s
e
M
r
o
r
r
E
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e
d
o
C
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a
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4
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T
5
0
C
I
I
6
0
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0
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e
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T
9
0
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4
2
– 7 –
KF-42SX300
RM-906
The operating instructions mentioned here are partial abstracts 
from the Operating Instruction Manual.  The page numbers of 
the Operating Instruction Manual remain as in the manual.
SECTION 2
 
GENERAL
Checking the Accessories supplied
Inserting Batteries into the Remote Control
Make sure y
ou insert the supp
lied ba
tteries u
sing the cor
rect polarities.
Always remember to dispo
se of
 used
 ba
tteries in
 an enviro
nmental f
riendly way.
1 Remote control (RM-906)
Batteries 
(AAA 
si
ze)
2 Br
ackets
1 Hexagon key
2 Screws
1 Cleaning cloth
 1 PC input cable
Overview of Remote Control Buttons
1
 
TV 
I/
: To Temporarily Swi
tch Off
 TV (standby mode):
 
Press this button to temporarily switch off TV (
the standby indicator
o
n the TV 
lights up). Press again to sw
itch on TV from standby mode. 
• 
To 
save 
energy 
we 
recommend 
switching 
o
ff
 c
ompletely 
when 
TV is 
no
in 
use.
• After 15 minutes without 
TV signal and withou
t any button being
 pressed, 
the TV switches automatically into standby mode.
2
  
V
CR or DV
D on/
o
ff:
 pres
s this button to switch your VCR o
r DVD on or off. 
3
Selecti
ng input
 source:
 press 
this 
b
u
tto
rep
eatedly 
until 
the 
desired 
in
put 
symbol 
of the so
urce ap
pears o
n
 t
h
e TV screen. Refer to pag
e 25
.
4
S
e
lec
tin
g
 b
roa
dca
st ch
an
ne
ls
: if M
edia Select
o
r (
w;
 i
s swi
tched 
to TV
, press 
these buttons to select chann
els. For doub
le-d
igit programme n
u
mbers, en
ter th
seco
nd digit with
in 2.5 second
s.
5
 Select
ing VCR double-digi
t:
 i
M
edia 
Selector 
(
w;
is
 switched 
to 
VCR, 
press 
this 
bu
tton
 to 
select 
d
ouble-digit 
chann
els 
for 
So
ny's 
VCR 
e.g. 
2
3
press 
-/-- 
first 
an
nex
the buttons 2 and 3.
6
 a)
R
e
c
o
rd
in
b
u
tt
on
: 
If
 Med
ia
 Select
or
 (
w;
is 
switched 
to 
VCR, 
press 
this 
button 
to 
record 
programmes.
b
)
Re
se
ttin
g to facto
ry se
lev
els
:
Press, for a min
imu
m
 of 3
 secon
ds, to return th
e picture an
d so
und setting
to the 
fa
ct
ory 
defaul
t l
evel
s. This w
ill 
also ret
ur
n
 the set 
to the i
n
stall 
conditi
on 
and t
h
“Aut
Tuning” 
menu 
will
 appear on the scr
ee
n.
 If 
this i
s the 
ca
se 
refer 
to the 
sect
ion
 “Swi
tching on
 the TV set and
 au
to
mat
ically Tuning
” (pag
e 1
1
, step 5) o
th
is 
m
anua
l.
7
Watc
hi
ng
 la
st
 ch
an
ne
se
le
cte
d:
 if 
M
edia 
Selector 
(
w;
is 
sw
itched 
to 
TV
, press 
this b
u
tto
n to
 return to
 the previous chann
el yo
u
 were watch
in
g (prov
id
ed you 
watched it for at least 5 second
s).
8
F
reez
in
g a
 te
le
te
xt pa
ge
: in tel
etext mode, p
re
ss this b
u
tt
o
n
 to freeze a telet
ex
pag
e. Press it again to ca
ncel the fr
eez
e.
9
 a
)
Dis
pla
y
in
g
 a
 ch
an
ne
l in
de
x:
 i
Media 
Sel
ec
to
(
w;
is 
switched
 t
o
 TV 
and 
M
E
NU 
is 
switched 
off, 
press 
OK
 to display a channel overview. If y
ou 
want t
o
 select a chann
el
, press 
v
 or
 
V
 nex
t press 
ag
ai
n
 the 
OK
 button 
to 
watch 
th
selected 
ch
annel.
b) Navigat
or:
 i
Med
ia
 Sel
ector 
(
w;
is
 s
witche
to 
TV and MENU (
qs
) is switched on, use these
 
bu
tton
to 
navigate 
th
ro
ugh 
the 
menu 
system 
o
the 
TV. Refer to
 p
age 12.
q;
Selecti
ng
 th
e screen f
o
rmat:
 press this button 
repeatedly to chan
ge t
h
e format o
f the scr
ee
n. Refer
 
to
 p
age 16.
qa
 
Sel
ec
tin
g
 bro
ad
ca
st ch
an
ne
ls
: 
press
 these 
buttons to select the next or previous broadcast 
channel.
qs
 
Me
nu sy
stem:
 press t
h
is
 button to e
n
ter
 the TV 
menu
 sy
stem. Refer to pag
e 1
2
.
qd
 
Ad
ju
sting
 vo
lume
: 
p
ress 
these 
buttons 
to 
increase 
or decrease t
h
e au
dio v
o
lume.
qf
 
Sel
ec
tin
g
 pic
tu
re 
mo
de
: press this button 
repeatedly 
to
 chan
ge 
the 
pict
u
re 
mode. 
For 
detail
on 
the different picture mod
es. Refer to page 13.
qg
 
Se
le
cting
 th
e so
un
d e
ffe
ct:
 Press this button 
repeatedly 
to 
chang
the
 s
o
und 
effect. 
Fo
details 
o
n
 
different sou
nd effects. Refer to pag
e 14
.
qh
Fa
ste
xt
: In 
Telet
ext
 mode,
 these 
butt
ons can 
be 
used
 as Fastext buttons. For details see p
age 22.
qj
Ne
xT
V
ie
w
: 
press 
this 
bu
tton to 
display Nex
TView. 
For detail
s. Refer t
o
 page 
23.
qk
  Te
le
tex
t:
 press 
this 
butt
on 
to 
switch 
on 
 Tel
etext
. For 
details see page 22.
ql
 Op
erating
 VCR 
or DVD:
 i
Media 
Selector 
(
w;
is 
switched 
to 
VCR 
or 
DVD,
 t
hese 
but
tons 
will 
operate 
the main fu
nctio
ns of yo
ur VCR or DVD, o
n
ce the
 
remote control h
as b
een programmed. Refer to page
 
26
.
w;
Media Selector: 
press 
this button to 
select whi
ch 
d
evice y
ou want to operate, TV, VCR o
r DVD. A 
gr
ee
li
ght
 wil
be 
momentaril
lit 
to 
show
 which 
one
 
y
ou have selected. For details refer to page
 26
.
wa
Di
sp
la
yin
g In
fo:
 press 
this 
button 
to 
di
splay 
al
on-
screen
 i
n
d
ic
at
ion
 s
u
ch 
as 
chan
nel 
number, 
et
c.
 P
ress 
ag
ai
n
 to cancel.
ws
S
e
lec
tin
g
 T
V
 mo
de
: 
p
ress 
this 
but
ton 
to 
swi
tch 
off 
PAP, Teletext or Video inpu
t mode.
wd
 P
A
P (P
ic
tu
re A
n
d
 Pi
c
tu
re):
 pr
ess
 this 
butt
on 
to 
divide 
the 
screen 
into 
two
 for 
watching 
two 
chann
els 
simu
ltaneo
usly. Refer to page 21.
wf
Muti
ng the sound:
 pr
ess 
this 
butt
on 
to mute t
h
TV so
und. Press ag
ain
 to resto
re
 the sound
.
1
qd
qs
q;
2
3
4
5
6
7
8
9
qf
qg
wa
w;
qk
ql
qj
qa
qh
ws
wd
wf
– 8 –
KF-42SX300
RM-906
Connecting the Aerial and VCR
• C
onnecting cables are not supplied.
• For mo
re details of VCR connections as well as other connections, please refer to pag
e 24.
The Scar
t lead is optional. If you us
e this optional connection it can impro
v
e picture and soun
d quality wh
en 
u
sing a VCR.
If you do n
ot use a Scart lead, you will need to manually 
tune the VCR to a spare channel once the au
totun
pro
cedure has been completed. Refer to “Manual Programme Preset” on
 page 20. Also refer to your VC
R
 
instruction manual to find out how to f
ind the output channel of yo
ur VCR.
Stabilizing the TV set
  
   
  
  
  Af
ter
 setting 
up, 
secur
th
TV
 set 
to 
w
all, 
etc.
using 
the 
supplied 
brackets 
and 
screws, 
for 
safety 
purp
o
ses.
1
Mou
nt the two supplied brackets with the screws 
provided to the u
pper rear
 side of the TV set.
2
Pass a strong cord or a chain thro
ugh each bracket,
 and then secur
e to a 
w
all or a pillar, etc.
Do 
not 
block 
or 
cov
er 
this 
vent
ilati
on 
opening
For
 
v
enti
la
tion
lea
ve 
spac
o
at
 le
ast 
1
cm
 from
 the
 
wall.
or
OUT
IN
VC
R
Switching On the TV and Automatically Tuning
The 
first 
time 
y
ou 
switch 
on 
yo
ur 
TV, 
sequence 
of 
menu 
screens 
appear 
on 
the 
TV 
enabling 
you
 t
o
1
choose 
the 
languag
of 
the 
menu
 screen 
2) 
C
hoose 
the 
countr
in
 w
hich 
you
 are 
going
 to 
operate 
the 
TV, 
3
check 
how 
to conn
ect o
ption
al eq
uipment to
 your TV, 4
) search and store all available chan
nels (TV Broadcast) and 5) 
change th
e order in which the ch
annels (
T
V Br
oadcast)
 appear on
 th
e screen.
However, 
if
 you 
need 
to 
change 
any 
o
these 
settings 
at 
later
 date, 
you 
can 
do 
that 
by 
selectin
the 
appr
opriate 
option in the
  
(Set Up menu). 
1
Connect the TV plug to the mains so
cket (220-240V AC, 50Hz)
The 
first 
time 
that 
the 
TV 
set 
is 
connected, 
it 
is 
usually 
turned 
on. 
If the TV is o
ff, press the 
 on/off butto
n on the TV set to turn 
on the TV.
The 
first 
time 
you 
sw
itch 
on 
the 
TV, 
Language
 m
enu 
d
isplays 
aut
o
ma
tic
al
ly on t
h
e TV scre
en.
2
P
ress
 t
he 
V
v
B
 o
b
 buttons on the remote control to select 
your language, then press the 
OK
 button to co
nfirm you
selection. 
Fr
om 
n
ow 
on 
all 
the 
menu
will 
appear 
in 
y
o
ur 
cho
sen 
language. 
3
The
 Country
 menu appears aut
omatical
ly. Press the 
v
 or 
V
 
button 
to 
select 
the 
country 
in
 which 
you 
are 
using 
the 
TV. 
P
ress 
the 
OK
 button to confirm your selection.
• If the country
 in
 which you want to use the TV set
 
  
 does 
not 
appear 
in 
the 
list, 
select 
“off” 
instead 
of 
cou
ntry.
• 
To 
avoid
 w
rong
 teletext 
ch
ar
acters 
for 
cyrillic 
languages 
we 
recommen
d selectin
g Russia countr
y if you
r own coun
try 
does not ap
pear in the list. 
Language
English
Neder
lands
F
rançais
Italiano
Deutsch
rk
ç
e
Español 
P
o
rt
uguês
P
o
lski
English
Neder
lands
F
rançais
Italiano
Deutsch
T
ü
rkçe
Español 
P
o
rt
uguês
P
olski
Select  language
Country
Select  country
Off
Ir
eland
Nederland
België/
Belgique
L
uxembourg
F
rance
It
alia
Sc
hweiz/
Suisse/
Svizzera
continued...
Language
English
Neder
lands
F
rançais
Italiano
Deutsch
T
ü
r
kçe
Español 
P
o
r
tuguês
P
o
lski
English
Neder
lands
F
rançais
Italiano
Deutsch
r
k
ç
e
Español 
P
o
r
tuguês
P
o
lski
Select  language
Language
English
Neder
lands
F
rançais
Italiano
Deutsch
T
ü
r
kçe
Español 
P
o
r
tuguês
P
o
lski
English
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lands
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