1. Technical Specifications, Connections, and Chassis
Overview2
2. Safety Instructions, Warnings, and Notes4
3. Directions for Use5
4. Mechanical Instructions9
5. Service Modes, Error Codes, and Fault Finding 12
6. Block Diagrams, Test Point Overviews, and
Waveforms
Wiring Diagram15
Block Diagram Video, Audio, and Control16
I2C Diagram17
7. Circuit Diagrams and PWB LayoutsDiagram PWB
Main Panel: Micro Controller(A1) 1824
Main Panel: Video Decoder(A2) 1924
Main Panel: Tuner(A3) 2024
Main Panel: Video Processor(A4) 2124
Main Panel: Sound Decoder + Amplifier (A5) 2224
Main Panel: Power Supply(A6) 2324
Main Panel: SCART(A7) 2324
LCD TV AV Front(D) 2525
Keyboard(E) 2626
8. Alignments27
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets28
Abbreviation list29
IC Data Sheets31
Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by JH 05612 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 15131
Page 2
EN 2TF1.1E AA1.
Technical Specifications, Connections, and Chassis Overview
1.Technical Specifications, Connections, and Chassis Overview
Index of this chapter:
1.1 Technical Specifications
1.2 Connection Overview
1.3 Chassis Overview
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
1.1Technical Specifications
1.1.1Vision
Display type: LCD
Screen size: 14” (37 cm), 4:3
Resolution (HxV pixels): 640x480
Contrast ratio: 450:1
Light output (cd/m
Response time (ms): 16
Viewing angle (HxV degrees): 140x120
Tuning system: PLL
TV Colour systems: PAL B/G, D/K, I
Note: The following connector colour abbreviations are used
(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1Side Connections
SIDE I/O
S-Video (optional)
Video
L
Audio
R
E_14480_111.eps
060504
Figure 1-1 Side I/O
1.2.2Rear Connections
EXT1AV OUT
AUDIOLAUDIO
VIDEO
Figure 1-2 Rear I/O
Aerial - In
-- IEC-type (EU) Coax, 75 ohm D
DC IN
R
E_15310_002.eps
211004
Power supply:
- Mains voltage (V
- Mains frequency (Hz): 50 / 60
): 100 - 240
AC
Ambient conditions:
- Temperature range (°C): +5 to +40
- Maximum humidity: 90% R.H.
Power consumption
- Normal operation (W): ≈ 40
- Stand-by (W): < 2
Dimensions (WxHxD in cm): 34x32x6.3
Weight (kg): 4.8
Cinch: Video CVBS - Out, Audio - Out
Ye - Video CVBS 1 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
/ 75 ohm kq
PP
/10 kohm kq
RMS
/ 10 kohm kq
RMS
Power: DC - In
1 - 12 V j
External 1: Video RGB/YUV - In, CVBS - In/Out, Audio - In/
Out
21
20
E_06532_001.eps
2
1
050404
Figure 1-3 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video Blue/U 0.7 V
/ 10 kohm j
RMS
/ 75 ohm j
PP
Page 3
Technical Specifications, Connections, and Chassis Overview
EN 3TF1.1E AA1.
8 - Function Select 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Gn Gnd H
10 - n.c.
11 - Video Grn/Y 0.7 or 1 V
12 - n.c.
/ 75 ohm j
PP
13 - Ground Red Gnd H
14 - n.c. H
1.3Chassis Overview
MAIN PANEL
15 - Video Red/V 0.7 V
16 - RGB Ctrl 0 - 0.4 V: INT
/ 75 ohm j
PP
1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
18 - Ground RGB Ctrl Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
LCD
REMOTE AND
KEYBOARD PANEL
INVERTER PANEL
SIDE A/V PANEL
E_15310_001.eps
241104
Figure 1-4 Chassis Overview
Page 4
EN 4TF1.1E AA2.
Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
Index of this chapter:
2.1 Safety Instructions
2.2 Warnings
2.3 Notes
2.1Safety Instructions
Safety regulations require that during a repair:
•Connect the set to the Mains (AC Power) via an isolation
transformer (> 800 VA).
•Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•Route the wire trees correctly and fix them with the
mounted cable clamps.
•Check the insulation of the mains lead for external
damage.
•Check the cabinet for defects, to avoid touching of any
inner parts by the customer.
2.2Warnings
•All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential. Available
ESD protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
– Wristband tester 4822 344 13999.
•Be careful during measurements in the high voltage
section.
•Never replace modules or other components while the unit
is switched "on".
•When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
2.3.2Schematic Notes
•All resistor values are in ohms and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2
indicates 2.2 kohm).
•Resistor values with no multiplier may be indicated with
either an "E" or an "R" (e.g. 220E or 220R indicates 220
ohm).
•All capacitor values are given in micro-farads (µ= x10
nano-farads (n= x10
•Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
•An "asterisk" (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
•The correct component values are listed in the Electrical
Replacement Parts List. Therefore, always check this list
when there is any doubt.
2.3.3Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.
•Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.
-9
), or pico-farads (p= x10
-12
-6
),
).
2.3Notes
2.3.1General
•Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (H), or hot ground (I), depending
on the tested area of circuitry. The voltages and waveforms
shown in the diagrams are indicative. Measure them in the
Service Default Mode (see chapter 5) with a colour bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or
61.25 MHz for NTSC (channel 3).
•Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.
•The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
Page 5
3.Directions for Use
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For more details on connections see page
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ask your dealer
or connecting an ampli
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soc
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supply socke
aeria
mounting kit available as an option
EXT
Audio/Video output
D
EXT1AV Out DC in
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ide connection
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ace. To avoid danger
Place your TV on a solid stable sur
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Insert the two R
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and dismantle them after retrieving any materials that can be used again
Page 6
EN 6TF1.1E AA3.
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Directions for Use
the voltage is indicated o
. Only use the AC-DC adaptor supplied with the TV
The TV works with a DC supply
the label
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insert t
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aeria
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EXT1AV Out DC in
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IN
AUDI
video connecting cable
the TV set to an
the TV set to a ”VIDEO IN”
i unit.
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connect
connect a Hi-
eve
The headphone impedance must be between
an
R
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EXT1AV Out DC in
e
:
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outputs o
the Hi-
R
the ampli
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own a programme
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displayed
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t
bottom o
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or a 2 digit programme number
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8
ore the dash disappears
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t
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e soun
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ay t
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e time remaining on t
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Page 7
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Go to the next step. I
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the reception is not satis
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just using t
ne tune
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p.
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esire
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e programme is store
epeat steps
tore
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severa
Directions for Use
or all
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pp
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p.
EN 7TF1.1E AA3.
ere
the programmes
TALLATI
IN
e
y t
ina
automatically.I
y num
een correct
not
em
er t
menu to renum
ound see Tips
times
you want to exit the menus, press
no picture is
I
I
severa
e in your region.
a
e menus press
exit t
e store
to start automatic search
tore
on men
Auto
programmes avai
e
e programmes
a programme to t
to store t
stor
is menu is use
anua
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ey
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e set, press t
on t
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en t
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e cursor t
t
ay t
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isp
en press
t
y to
TALLATI
ist
e
store
IN
ress t
elec
manua
existing
re
e remote
ey on t
uick Installation chapter.
, press the P
o straight to the
contro
If the TV remains in standby mode
indicator
tor
Manual
rogram
MAIN MEN
TUR
PI
o
...
your
ect
ist, se
e
or the search, automatic
oes not appear in t
Great Britain).This setting is used
programme sort and teletext display. I
country
u
to change the display language
TALLATI
anguage
IN
e menus
t
o
to select your country
ountry
P
un
ne
ame-----
ystemEUR
earch671 MH
tor
TALLATI
UN
FEATURESIN
I standard
, you must selec
o
urop
ng
(automatic detection
LL’ standard
te
e versions
urop
n
astern
ect
se
yste
ing to t
BG standard
or accor
LL’ standard
or France
ranc
Except
DK standard
ranc
oice
e c
t
n the Installat
ect t
se
ngs
y an
e
ther sett
ress t
t
ate wit
i
e remote contro
va
ys on t
e
ect your country an
se t
se
e
anguage using t
ect your
...
oice
ext se
your country does not appear in the list, selec
I
c
pp
u
y.
TALLATI
ate wit
i
starts automatica
IN
va
e searc
ys an
Finally the
menu
or
e
, use t
ound have not been
ere
y
y num
the programmes
automatica
I
correct
severa
.
p.
ound see Tips
em
er t
um
you want to exit the menus, press
no picture is
I
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mes
t
e
ress t
e screen
on t
aye
isp
t
menu wit
u
or
e
TALLATI
IN
en t
elect the
cursor t
elect the programme you want to move wit
press
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t
ys to choose the new
k
e
en use t
times.
mes a
severa
as many t
e programmes
irm with
an
e menus, press
to move t
exit t
epeat steps
umber and con
equire
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tch
w
irst time
is men
or the
o
on screen.
aye
nstallat
isp
ck
u
When you turn on the TV set
a menu is
anguag
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ect t
prompts you to se
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anguag
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ering
programmes
o
LI
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tor
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tor
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ountry
or
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Auto
Manual
TUR
TALLATI
UN
PI
FEATURESIN
LI
EN
or 5 seconds to
eys on the TV set
e menu.
an
ay t
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e num
ange t
ow you to c
is menu a
rogramme sor
Page 8
EN 8TF1.1E AA3.
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e an
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amiliar with the
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accessed. Each item has a corresponding
o
on
or viewers with hearing problems or who are not
ress
¤
cable networks, satellite channels, etc.
.
ers access to subtitles
It also o
transmission language
, ente
t, the counter turns and then th
the page required using the
ys. Example:page
will be displayed and the screen will remain blan
the channel selected does not broadcast teletext, th
I
indication
umber is displayed top le
in this case, exit teletext and select another channel
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g
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elect
9
P
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er page
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aye
isp
the counter continues to search, this means that the page i
page is
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ing pages
coloured keys are used to access the items o
Coloured areas are displayed at the bottom o
The
correspon
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rec
tem
D
access
the
P
3
[
- -
12
++
”
th
usually page 100
size
lash when the item or the page is not yet available
en return to norma
t
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page an
arg
n
ontent
Ë
Á
564
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t
ppears top le
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ication
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s
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-page
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ay
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oor recept
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t
the set receives no signal
oes into stan
output wit
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n
justing your picture: see F
y a
mountains or high buildings may b
or ghost pictures, echoing or shadows. I
or modify the orientation of the outsid
p.6
is case, try manua
esponsible
The proximity o
t
ree cloth to clean th
itted with components tha
save power,your set is
e you to receiv
oes your antenna ena
.
aeria
your set. Do not use alcohol
t and lint-
ow power consumption w
the se
n
less than 2 W
nly use a clean, so
lean
give it a very
mode
screen and the casing o
?
o
Have
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ro
UHF or VHF band
. Poorly connecte
p. 6
ou connected the aerial socket
ctur
broadcasts in this frequency range
No p
Have
chosen the right system?
euroconnector cables or aerial sockets are o
or 30 second
the TV
s after-sales service
ll no results
en reconnect it
t
your TV set breaks down, never attempt to repair i
based or solvent-based products
picture or sound problems.Check all connections
o
ourself: contact your dealer
Disconnect the mains plug o
t
I
e correct
p. 6
ave t
setting
o not
yste
at you
y the
ier connected to the TV does not deliver an
is means t
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on certain channels you receive a picture but n
I
soun
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The ampli
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iance
ri
the
e menus
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t
the ad
this changes the di
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on o
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this changes the pictur
to store t
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to store t
press
an
nce the adjustments have been made selec
tor
Descr
:
press
TUR
an
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pp
ng
TUR
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htness---I------
ontrastolou
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PI
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TALLATI
UN
PI
FEATURESIN
m
h
ect a setting an
r
ys to se
just
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e
and
nce the adjustments have been made select
se t
tor
aye
and press
isp
UN
menu is
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soun
ec
se
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ress
ound ad
t
times
severa
requency sounds
ngs :
ers
the sett
to balance the sound on the le
e menus press
quit t
on o
pt
anc
a
t spea
this alters the high
rig
e
an
Descr
---
----
------
UN
e---
ance-----
e
a
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tor
TUR
TALLATI
PI
SOUNDFEATURESIN
settings.
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to store soun
is is use
t
this alters the low
as
tore
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se t
t
and pres
ng
FEATURE
ec
se
ress
Feature sett
7
aye
isp
irst time, key the code
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The
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is entere
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set cannot
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t
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UN
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an
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irm b
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ect
e se
time
igure code. Con
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ange t
c
enter a new 4
entering a secon
e menus.
times to exit t
7
orgotten your secret code, enter the
severa
ress
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I
universal code
y
ect an automatic stan
This menu lets you block use o
to se
set
me
e
hildloc
period
t
T
Page 9
4.Mechanical Instructions
Mechanical Instructions
EN 9TF1.1E AA4.
Index of this chapter:
4.1 Service Positions
4.2 Assy/Panel Removal
4.3 Set Re-assembly
Notes:
•Figures below can deviate slightly from the actual situation,
due to the different set executions.
•Follow the disassemble instructions in described order.
4.1Service Positions
For easy servicing of this set, there are a few possibilities
created:
•The buffers from the packaging.
•Foam bars (created for service).
4.1.1Foam Bars
E_06532_018.eps
Figure 4-1 Foam bars
The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. By laying the TV
face down on the (ESD protective) foam bars, a stable situation
is created to perform measurements and alignments.
By placing a mirror under the TV, you can monitor the screen.
4.2Assy/Panel Removal
Before removing the cover, turn off LCD TV and plug off the
adapter socket.
170504
1. Remove the connector cover.
2. Remove the 4 screws at the corner (A) and the two in the
middle (B) that secure the rear cover.
3
Figure 4-3 inside Rear cover
3. Lift the rear cover at the bottom. Be aware of the clamps at
the left and right side and at the top (2x)of the cover.
Make sure that wires are not damaged during cover
removal.
4. Remove the two side AV connectors from the side
connector panel and the headphone connector from the
main panel.
4.2.2Main Panel
C
D
B
E_15130_004.eps
211004
A
4.2.1Rear Cover
A
B
Figure 4-2 Rear cover
B
E_15130_003.eps
211004
E_15130_015.eps
051104
Figure 4-4 Main panel
1. Remove connector (A) to remote and keyboard panel.
2. Remove connector (B) to invertor panel.
3. Remove both the speaker connectors (C).
4. Remove connector to LCD panel (D).
Caution: Be careful, because this connection is very
fragile!
5. Remove the 4 screws from the main panel.
6. Take out the panel.
Page 10
EN 10TF1.1E AA4.
Mechanical Instructions
4.2.3Invertor Panel
2
Figure 4-5 Invertor panel
1. Remove the 4 conncectors to LCD panel.
2. Remove the 2 fixation screws that hold the shield and
Invertor panel.
3. Take out the shield.
4. Take out the panel.
4.2.4LCD Panel
E_15130_006.eps
221004
4.2.5Remote and Keyboard Panel
1
Figure 4-7 Remote and Keyboard panel
1. Remove the fixation screws.
2. Take out the panel.
3. Be aware of the buttons, they are not fixed in the frame.
4.2.6Side Connector Panel
E_15130_008.eps
221004
Important: Be sure to work in a dust free environment during
the following activities. In addition, the use of (fabric) hand
gloves is advised.
E_15130_007.eps
211004
Figure 4-6 LCD panel disassembly
1. Place the TV set face down on the foam bars. Place the
bars at the edges of the set, so they will support the front
frame and not only the glass plate!
2. Remove all the parker screws around the frame.
3. Lift the LCD panel including the metal cover from the
plastic frame.
4. Remove the screws (4) that hold the LCD panel.
5. Remove the LCD panel from the metal cover. Be careful,
don’t damage the cables and be aware of the cable
positions.
2
E_15130_009.eps
Figure 4-8 Side connector panel
1. Disconnect all cables from the panel.
2. Remove the fixation screws and take out the panel.
221004
Page 11
4.3Set Re-assembly
To re-assemble the whole set, execute all processes in reverse
order.
Notes:
•While re-assembling, make sure that all cables are placed
and connected in their original position. See figure "Cable
dressing".
Mechanical Instructions
EN 11TF1.1E AA4.
Figure 4-9 Cable dressing
E_15130_010.eps
221004
Page 12
EN 12TF1.1E AA5.
Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
Index of this chapter:
5.1 Test Points
5.2 Service Mode
5.3 Problems and Solving Tips
5.4 Fault Finding and Repair Tips
5.1Test Points
This chassis is equipped with test points in the service printing.
In the schematics test points are identified with TPxx. These
test points are specifically mentioned in the service manual as
“half moons” with a dot in the centre.
Perform measurements under the following conditions:
•Television set in Service Mode.
•Video input: Colour bar signal.
•Audio input: 3 kHz left channel, 1 kHz right channel.
5.2Service Mode
Service mode offers several features for the service technician.
5.2.1Service Menu
Purpose
•To change option settings.
•To enable / disable hotel mode.
•To perform alignments.
Specifications
•Software version and Option settings display.
•Option settings.
•Software alignments (Geometry and Audio).
•Hotel mode.
•Automatic Gain Control.
How to enter
Press the following key sequence on the remote control
transmitter: “062596" directly followed by the OSD/STATUS/
INFO button (do not allow the OSD display to time out between
entries while keying the sequence).
After entering Service Menu, the following screen is visible.
LCD14 pv1.4
ProgramP01
OPT.
GEO.
Hotel Mode OFF
Volume
AGC 0031
E_15130_011.eps
221004
Menu explanation
1. AAAAA BB X.XX. This is the software identification of the
Main microprocessor:
– A= the chassis name (LCD14).
– B= software identification: pv= Philips Version
– X= the Main software version number (updated with a
major change that is incompatible with previous
versions).
2. Program. Indication of the current program (00..99).
3. Option Bytes (OPT). Shows all option settings. See
“Options” in the Alignments section for a detailed
description. Three codes are available.
4. Geometry (GEO). See Alignments section for a detailed
description.
5. Hotel mode. Used to set the TV in hotel mode.
6. Automatic Gain Control (AGC). Used to adjust the AGC
(00..31). Fixed value =16.
How to navigate
•In the Service Menu, select menu items with the CURSOR
UP/DOWN keys on the remote control transmitter. The
selected item will be highlighted.
•With the CURSOR LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected submenu.
•When you press the MENU key in while in a submenu, you
will return to the previous menu.
How to exit
When you press the MENU key in while in a the main service
menu, you will return to the normal user mode.
5.2.2Hotel Mode
Purpose
Installation is omitted in Hotel Mode. You cannot search any
channel when the Hotel Mode is activated. Volume level cannot
be increased higher then a previous defined level.
Specification
•Hotel Mode is activated by toggling the mode to on in the
Service Menu with the CURSOR LEFT/RIGHT keys.
•The maximum volume level is set with the CURSOR LEFT/
RIGHT keys.
5.3Problems and Solving Tips
5.3.1Picture Problems
Note: The problems described below are all related to the TV
settings. The procedures used to change the value (or status)
of the different settings are described.
Figure 5-1 Service Menu
Picture too dark or too bright
1. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
2. In the normal user menu, use the CURSOR UP/DOWN
keys (if necessary) to highlight the PICTURE sub menu.
3. Press the CURSOR LEFT/RIGHT keys to enter the
PICTURE sub menu.
4. Use the CURSOR UP/DOWN keys (if necessary) to select
BRIGHTNESS.
5. Press the CURSOR LEFT/RIGHT keys to increase or
decrease the BRIGHTNESS value.
6. Use the CURSOR UP/DOWN keys to select CONTRAST.
7. Press the CURSOR LEFT/RIGHT keys to increase or
decrease the CONTRAST value.
8. Use the CURSOR UP/DOWN keys to select STORE.
Page 13
Service Modes, Error Codes, and Fault Finding
p
p
9. Press the CURSOR LEFT/RIGHT keys to store the
settings.
10. Press the MENU button on the remote control transmitter
twice to exit the user menu.
Snowy picture
•Antenna not connected. Connect the antenna.
•No antenna signal or bad antenna signal. Connect a proper
antenna signal.
•The tuner is faulty (in this case line 2, the Error Buffer line,
will contain error number 10). Check the tuner and replace/
repair the tuner if necessary.
Black and white picture
1. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
2. In the normal user menu, use the CURSOR UP/DOWN
keys (if necessary) to highlight the PICTURE sub menu.
3. Press the CURSOR LEFT/RIGHT keys to enter the
PICTURE sub menu.
4. Use the CURSOR UP/DOWN keys (if necessary) to select
COLOUR.
5. Press the CURSOR LEFT/RIGHT keys to increase or
decrease the COLOR value.
6. Use the CURSOR UP/DOWN keys to select STORE.
7. Press the CURSOR LEFT/RIGHT keys to store the
settings.
8. Press the MENU button on the remote control transmitter
twice to exit the user menu.
5.4Fault Finding and Repair Tips
Check IP02 and
IP03 for 3,3V
and 5V.
Replace XV01.
Replace IV01.
NO
NO
NO
NO
Inputs
Scart, svhs,
Tuner, s-av
Is there
input
signal?
YES
Is there
3,3V and
5V (IV01
ower)?
YES
Is there a
clock on
XV01
20.25M?
YES
Is there
CLK, H-
sync and V-
sync out?
YES
YES
YES
NO
NO
YES
Is there
Sound?
Is there
a OSD?
EN 13TF1.1E AA5.
YES
Replace the
inverter
Notes:
•It is assumed that the components are mounted correctly
with correct values and no bad solder joints.
•Before any fault finding actions, check if the correct options
are set.
Fault tracing regarding power supply errors can be done using
the following Fault Tracing Diagram.
Check
1.8 V
CHECK
DP01
IP01
NO
YES
Check
3.3 V
CHECK
DP02
IP02
NO
YES
CHECK
LP02
IP03
DP05
Check
5 VS
CHECK
QP01
RP02
DP03
DP04
Check
5 V
NO
NO
YES
Check
Adapter
12 V
NO
CHANGE
ADAPTER
Check
33 V
CHECK
IT02
LT05
DT01
LT06
LT07
E_15130_012.eps
NO
221004
Figure 5-2 Fault finding diagram for power supply errors
Check IP01,
IP02 and IP03.
Replace XS01.
Replace IS03.
Check IP02
and IP03.
Replace IS01.
NO
NO
NO
NO
NO
Is there
1.8V and
3.3V (IS03
ower)?
YES
Is there a
clock on
XS01
20.25M?
YES
Check
Clock(PCK1)
H-Sync and
V-sync out
YES
Check
3.3V on
ISO1
YES
Is there a
clock on
RLCK+ and
RLCK-?
YES
Replace the panel
E_15130_031.eps
251104
Figure 5-3 Fault finding diagram for display errors
Page 14
EN 14TF1.1E AA5.
Personal Notes:
Service Modes, Error Codes, and Fault Finding
E_06532_012.eps
131004
Page 15
Block Diagrams, Test Point Overviews, and Waveforms
6.Block Diagrams, Test Point Overviews, and Waveforms
Wiring Diagram
WIRING
SCREEN
2P
SA01
MAIN PANEL
5P
SA02
A
12P
SS02
2P
SA03
15TF1.1E AA6.
SS01
20P
LVDS
Display
SM02
7P
LCD TV AV FRONT
D
SS02
SS01
9P
5P
INVERTRER
SA04
9P
SPEAKER
RIGHT
E
KEYBOARD
KC01
SPEAKER
LEFT
7P
E_15130_039.eps
280105
Page 16
Block Diagrams, Test Point Overviews, and Waveforms
Block Diagram Video, Audio, and Control
Video Audio Control
A3
TUNER
A5
SOUND DECODER + AMPLIFIER
16TF1.1E AA6.
TU01
CTF5513RH
TUNER
1F1
RT34
SCL
SCART
SCL
1F2
AGC
SC01
2
6
16
20
SDA
54 1
RT33
SDA
A7
SCART
A5
SOUND DECODER + AMPLIFIER
1T01
TDA9886
IF-PLL
412
42324
RT24
RT25
DEMODULATOR
1F1
1F2
SIF1
SIF2
14
TAG C
10
SDA
11
SCL
SIOMAD
12
IF-S
1
2
3
4
5
6
7
8
FT02
AGC
LT1 1
DT02
DT03
K3953M
125
FT01
K9453M
125
SDA
SCL
11
CT38
10
RT18
A2
QT01
17
CVBS
ROUT1
1
3
7
11
15
19
SCIN-R
LOUT1
SCIN-L
B
G
R
FBEXT
V_OUT1
VIDIN
RT05
EF
CVBS-1
RT03
1
2
3
4
RESET_L
A1
ROUT1
SCIN-R
LOUT1
SCIN-L
FRAVIN-R
FRAVIN-L
SC2_R
SC2_L
SDA
SCL
VIDEO DECODER
1V01
VPC323XD
72
VIN1
1
B1/CB1IN
2
G1/Y1IN
3
R1/CR1IN
79
FB1IN
74
VIN3
PROCESSOR
RA16
RA15
VIDEO
IA02
MSP34X0G
16
RESETQ
50
ANA_IN1+
28
SC1_OUT_R
45
SC3_IN_R
29
SC1_OUT_L
44
SC1_IN_L
39
SC3_IN_R
38
SC3_IN_L
25
SC2_OUT_R
26
SC2_OUT_L
2
I2C_DA
1
I2C_CL
Y(0-7)
RESQ
MSY/HS
LLC2
SOUND
DECODER
DACM_R
DACM_L
20
21
A4
F003
32
15
F007
56
F009
57
VS
F002
27
Y (8 BIT)
A1
RESET_L
H_SYNC
V_SYNC
CLK
SDA
SCL
IA01
TDA7057AQ
5
VIN2
3
VIN1
VIDEO PROCESSOR
ISO3
DPS9450A
PROCESSOR
YIN(0-7)
AND SCALER
2
RESET
8
H-IN
9
V-I N
26
ITUCLK_IN
RS32
7
SDA
RS33
4
SCL
AUDIO
AMPLIFIER
DISPLAY
OUT1-
OUT2-
OUT2+
OUT1+
R1
G1
B1
11
10
1
7
8
13
F016
82
80
122
125
126
R (8 BIT)
G (8 BIT)
B (8 BIT)
PCK1
PCS1
PCS2
PCS3
MUTE
F015
31
27
28
30
32
A1
ISO1
DS90C385MTB
INTERFACE
PWRDWN
LVD S
TXOUT0-
TXOUT0+
TXOUT1-
TXOUT1+
TXOUT2-
TXOUT2+
TXCLKOUT-
TXCLKOUT+
TXOUT3-
TXOUT3+
SA03
1
2
SA01
1
2
SA02
11
22
44
55
48
47
46
45
42
41
40
39
38
37
D
LCD TV AV FRONT
SS01
F019
RS43
F020
RS43
RS43
RS43
RS44
RS44
F018
RS45
RS46
RS44
RS44
R_GIR
R_CIK
L_CIK
L_GIR
RIN0-
RIN0+
RIN1-
RIN1+
RIN2-
RIN2+
RCLK-
RCLK+
RIN3-
RIN3+
HS01
SS01
16
15
13
12
10
SPEAKER
SPEAKER
HEADPHONE
3.5mm Socket
TO DISPLAY
9
6
7
4
3
LEFT
RIGHT
VIDEO OUT
AUDIO OUT L
AUDIO OUT R
D
LCD TV AV FRONT
AUDIO IN R
AUDIO IN L
CVBS
SVHS
CVBS-TXT
CVBS
CHROMA
QVO1
A7
SCART
SS02
SA04
FR
FL
Y
11
33
55
77
99
VOUT2
SC2_L
SC2_R
FRAVIN-R
FRAVIN-L
CVBS
CHROMA
Y
SDA
SCL
70
VOUT
RV07
RV10
F013
P15e
23
H-OUT
22
V-O UT
136
R
137
G
138
B
142
FB
73
XTAL1
74
XTAL2
75
VIN4
71
CIN
73
VIN2
14
SDA
13
SCL
XTAL1
XTAL2
62
F010
XV01
63
F012
E
KEYBOARD
VOLUM E+
VOLUM E -
STANDBY
CHANNEL +
CHANNEL -
1R01
LED01
SM03
SM04
SM01
SM02
SM05
+5VS
RC
DC01
RC01
RC03
DC02
8
7
5
6
A1
SC02
JS01
JS02
2
1
5
4
3
A1
MICRO CONTROLLER
F014
XS01
KC01
SM02
71
62
53
44
35
26
17
A4
A2
CVBS-TXT
A5
+5VS
3.3V
KEYBOARD
F021
F022
F001
A5
A6
A5
LVDS_EN
HSYNC-OUT
VSYNC-OUT
OSD_R
OSD_G
OSD_B
OSD_FB
MUTE
STDBY
RESET_L
TM01
TM02
SDA
SCL
F023
CM17
CM18
1M01
ST92195B
43
40
HSYNC/CSYNC
41
VSYNC
17
R
16
G
15
B
18
FB
44
P4.2/PWM2
14
P3.4
11
CSO/RESET0/P3.7
F005
34
CVBS1
33
CVBS2
1
INT7/P2.0
53
P2.4/NM1
56
P2.1/INT5/AIN1
19
SDA
20
SCL
1M02
M24C16BN6
5
6
MICRO
CONTROLLER
P4.3/PWM3/TSLU/HT
AIN4/P0.2
51
XMO1
50
EEPROM
F024
A7
SCART
SS02
TS03
BL
45
+12V
CL1
8
4
10
11
12
TO INVERTER
SC01
PIN 8 SCART
F001
2V / div DC
10ms / div
F002
1V / div DC
20ns / div
F003
1V / div DC
200ns / div
F005
200mV / div DC
2ms / div
F007
1V / div DC
20µs / div
F009
1V / div DC
5ms / div
F010
1V / div AC
35ns / div
F012
1V / div DC
5ms / div
F013
500mV / div DC
20µs / div
F014
1V / div DC
20ns / div
F015
1V / div DC
20ns / div
F016
1V / div DC
20µs / div
F018
500mV / div DC
2µs / div
F019
500mV / div DC
5ms / div
F020
500mV / div DC
5ms / div
F021
1V / div DC
10µs / div
F022
1V / div DC
2ms / div
F023
1V / div DC
10µs / div
F024
1V / div DC
50ns / div
E_15130_040.eps
040205
Page 17
I2C Diagram
SUPPLY
POWER SUPPLY
A6
+12V DC
IN
Block Diagrams, Test Point Overviews, and Waveforms
RM34 B3
RP01 C4
RP03 C4
RS05 A3
RS13 D2
RS22 A3
RS32 B2
RS33 B2
RS34 B2
RS35 B2
RS36 B2
RS37 A1
RS40 B1
RS41 A1
RS42 A1
RS45 A3
RS46 A3
RT01 C 1
RT02 C 1
RT03 D 1
RT04 D 1
RT05 D 2
RT10 B 4
RT11 B 4
RT12 D 1
RT13 B 4
RT14 B 4
RT15 C 1
RT16 D 1
RT17 C 1
RT18 C 1
RT19 B 1
RT20 B 1
RT21 B 1
RT22 B 1
RT23 C 1
RT24 D 1
RT25 D 1
RT26 B 1
RT27 B 1
RT28 C 1
RT29 B 1
RT30 D 1
RT31 D 1
RT32 D 1
RT33 D 1
RT34 D 1
RT35 B 4
RV05 D2
RV06 D2
RV07 C3
RV10 C3
RV11 D3
RV12 D2
General: The Service Mode is described in chapter 5. Menu
navigation is done with the cursor Up, Down, Left or Right keys
of the remote control transmitter.
8.1General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•Allow the set to warm up for approximately 10 minutes.
•Mains voltage and frequency: 100-240 V
•Test probe: Ri > 10 Mohm; Ci < 2.5 pF.
8.2Hardware Alignments
There are no hardware alignments foreseen for the LCD-TV.
8.3Software Alignments
With the software alignments of the Service Mode the
geometry can be aligned.
To store the data: Use the RC button MENU to switch to the
main menu and next, switch to ‘Stand-by’ mode.
8.3.1Options Menu
/ 50/60 Hz.
AC
Table 8-1 Option values
Option
Byte 0
Bit 0
Bit 1Welcome menu disable Welcome menu enable
Bit 2“No Signal” timer off“No Signal” timer on
Bit 3Not usedNot used
Bit 4Not usedNot used
Bit 5France selection disable France selection enable
Bit 6Main tuner selection bit0 Main tuner selection bit0
Bit 7Main tuner selection bit1 Main tuner selection bit1
Main tuner selection: 00: fixed value. No other tuners used
Option byte 1 and option byte 2 are empty.
8.3.2Geometry Menu
Description value 0Description value 1
Child lock disableChild lock enable
GEO
H.ST0022
H.SP
V.ST0063
V.SP0864
Figure 8-2 Geometry Menu
0640
E_15130_014.eps
221004
OPT.
0
7 T B1 0
6 T B2 0
5 Sec. 1
4 Empty 1
3 E/W 1
2 No. S.T 0
1 Wel. 1
0 Childlo. 1
E_15130_013.eps
221004
Figure 8-1 Options Menu
The option menu is used to control the presence/absence of
certain features and to set some options.
How to change an Option Byte
An Option Byte represents a number of different options.
Changing these bytes directly makes it possible to set all
options very fast. All options are controlled via three option
bytes. Select the option byte (OPT0.. OPT2) with the Menu Up/
Down keys, and enter the new value.
To change any bit value of any option, just press the digit keys
(0-7) on the RC. For example; to change the bit value (0 or 1)
of the fifth option “Sec.”, simply press the corresponding digit
“5” on the RC and make the desired change. The bit value will
change from 0 to 1 and 1 to 0 respectively on each pressing of
button 5.
If the GEOMETRY option in the Service menu is highlighted
and the LEFT/RIGHT button on the RC are pressed, the
geometry menu will be displayed.
Table 8-2 Geometry items
Menu
item
H.ST
H.SPHorizontal stop0000...0864
V.STVertical start0000...0864
V.SPVertical stop0000...0864
It is possible to adjust the start and stop points of the screen by
adjusting the values.
Description Possible value
Horizontal start0000...0864
Default value
0022
0640
0063
0864
Leaving the OPTION submenu (with the MENU button) saves
the changes in the Option Byte settings. Some changes will
only take effect after the set has been switched “off” and “on”.
Page 28
EN 28TF1.1E AA9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 Block Diagram
9.3 Video processing
9.4 Microprocessor
9.5 Audio processing
9.6 Abbreviation list
9.7 IC Data Sheets
Note:
•Figures can deviate slightly from the actual situation, due
to different set executions.
•For a good understanding of the following circuit
descriptions, please use the diagrams in chapter 6 and 7.
Where necessary, you will find a separate drawing for
clarification.
9.1Introduction
This chassis contains complete new designed main board,
including the following new components:
•ST92195B (Microcontroller and TXT Decoder): is a new
controller IC with internal ROM and RAM memories, TXT
decoder and On Screen Display (OSD) functionality.
The chassis consists not only of the main board with all the
functionality and a part of the I/O connectors.
There are also three peripheral panels: an inverter panel, a
side a/v panel, and a remote and keyboard panel. These
peripheral panels are considered to be replaced when
defective. Assy’s are mentioned in partslist.
Amplification is done via a integrated power amplifier IC, the
TDA7057AQ.
9.3Video processing
The key components of the video processing are the following
ICs:
•VPC3230D
•DPS9450A
•DS90C385MTD
9.3.1VPC3230D
The VPC3230D is a high-quality, single chip video front-end.
The main features are:
•multi-standard colour decoder PAL/NTSC/SECAM,
including all substandards
•two RGB/YCrCb component inputs, one Fast Blank input
•integrated high-quality A/D convertors and associated
clamp and AGC circuits
•multi-standard sync processing
•linear horizontal scaling (0,25....4), as well as non-linear
horizontal scaling (Panorama vision)
•PAL+ preprocessing
•control interface for external field memory
•I2C-bus interface
9.3.2DPS9450A
9.2Block Diagram
For the block diagram see chapter 6 “Wiring Diagram, Block
Diagrams, and Overviews”.
The Tuner is a PLL tuner and delivers the IF-signal, via audio
& video SAW-filters, to the VPC3230D Video Processor.
Several I/O connectors are available:
•one SCART (fully equipped),
•Video CVBS out and cinch audio L/R out.
•S-video, CVBS video, and audio L/R input.
•Headphone output.
All these video in and outputs are connected to the Video
Processor. The audio signals are processed by the MSP3410G
Sound processor.
Attached to the Video Processor is the DPS9450A Matrix
Panels Display Processor and Scaler.
The incoming 16 bit signals are processed and combined with
the On Screen Display (OSD) and Teletext (TXT) information
from the Microprocessor.
The microprocessor, called OTC (OSD, Teletext and Control)
takes care of the analogue TXT input- and output processing.
The OTC, ROM, and RAM are supplied with 5V, which is
derived from the +12V. The internal ROM is used to store the
set software, the RAM contains the settings and the TDSRAM
is used for storing the Teletext pages.
The combined picture information is sent to the LCD display by
the DS90C385 programmable LVDS transmitter, providing a
perfect input signal in the desired format.
The sound part is built around the MSP3410G (Multi-channel
Sound Processor) for IF sound detection, sound control and
source selection. Dolby decoding is also done by the MSP.
The DPS is a single-chip digital display processor and scaler
specially designed for TV sets with matrix displays.
There are three main functional parts:
•video input processing
•scaling
•display processing
The video input processing part handles both the analog and
digital input. After the channel mixer, the signal is processed by
the scaler, where a linear horizontal and vertical scaling is
done. Also non-linear horizontal scaling, and de-interlacing is
possible. In the display processing part, the picture is
enhanced, and the digital OSD is added to the picture.
The chip is also equipped with an I2C interface
9.3.3DS90C385MTD
The DS90C385 transmitter converts 28 bits of CMOS/TTL data
into four LVDS (Low Voltage Differential Signalling) data
streams. A phase-locked transmit clock is transmitted in
parallel with the data streams over a fifth LVDS link. Every
cycle of the transmit clock, 28 bits of input data are sampled
and transmitted. At a transmit clock frequency of 85 MHz. 24
bits of RGB data and 3 bits of LCD timing and control data are
transmitted at a rate of 595 Mbps per LVDS data channel.
Using the 85 MHz clock, the data throughput is 297.5 Mbytes/
sec.
The transmitter can be programmed for Rising edge strobe or
Falling edge strobe through a dedicated pin.
A Rising edge or Falling edge strobe transmitter will
interoperate with a Falling edge strobe Receiver without any
translation logic.
Page 29
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 29TF1.1E AA9.
9.4Microprocessor
The Microprocessor IC (ST92195B) has two main functions:
microcontroller and teletext decoder.
9.4.1Microcontroller
The microcontroller is based on a ST9+ Core, consisting of the
Central Processing Unit (CPU), the Register File and the
Interrupt controller. Up to 28 I/O lines (five I/O ports) can be
configured to provide timing, status signals, timer and output,
analog inputs, external interrupts and serial or parallel I/O.
The On Screen Display (OSD) module provides a human
interface with up to 26 lines of max. 80 characters, each 10x10
dot. Four character sizes are supported, as well as additional
foreground and background colours.
The intelligent on-chip peripherals offload the ST9 core from I/
O and data management processing tasks to get the maximum
use of core resources.
The microcontroller supports several Power Saving Modes.
9.4.2TeleteXT decoder
The Teletext Unit includes a Data Slicer, and a special
Acquisition Unit.
The internal Teletext and Display storage RAM can be use to
store Teletext pages as well as Display parameters.
9.5Audio processing
The Multi standard Sound Processor IC (MSP3410G) covers
the full TV sound processing, starting with analog sound IFsignal down to processed analog AF-out.
It supports not only NICAM and FM Stereo, but also the AMSECAM L standard.
DBX noise reduction is available, or alternatively MICRONAS
Noise Reduction is performed.
Furthermore, the sound processor has built-in automatic
functions:
•actual sound standard detection
•mono/stereo/bilingual switching
•Automatic Carrier Mute function
•Automatic Volume Correction
Enhancement of the sound is done by a build in 5-band graphic
equalizer and also spatial effect is available.
The loudspeaker/headphone channel has separate volume,
balance, bass, treble and loudness settings.
9.6Abbreviation list
ACIAutomatic Channel Installation:
algorithm that installs TV sets directly
from cable network by means of a
predefined TXT page
ADCAnalogue to Digital Converter
AFCAutomatic Frequency Control: control
signal used to tune to the correct
frequency
AGCAutomatic Gain Control: algorithm that
controls the video input of the feature-
box
AMAmplitude Modulation
ANRAutomatic Noise Reduction: one of the
algorithms of Auto TV
ARAspect Ratio: 4 by 3 or 16 by 9
AUDIO_LAudio Left
AUDIO_RAudio Right
Auto TVA hardware and software control
system that measures picture content,
and adapts image parameters in a
dynamic way
BGSystem B and G
CLConstant Level: audio output to
connect with an external amplifier
CRTCathode Ray Tube or picture tube
CVBSComposite Video Blanking and
Synchronisation
DACDigital to Analogue Converter
DBEDynamic Bass Enhancement: extra
low frequency amplification
DFUDirection For Use: description for the
end user
DNRDigital Noise Reduction: noise
reduction feature of the box
DPLDolby ProLogic
DSPDigital Signal Processing
DVDDigital Versatile Disc
DYN-FASE-CORDynamic phase correction, to correct
the phase of the H-drive
EHTExtra High Tension
EHT-INFOExtra High Tension information, used
for contrast reduction, vertical and
horizontal amplitude correction, beam
current protection, and flash detection.
EPGElectronic Program Guide: system
used by broadcasters to transmit TV
guide information (= NexTView)
EWEast West, related to horizontal
deflection of the set
EW-DRIVEThe drive signal for the EW-transistor
EXTExternal (source), entering the set via
SCART or via cinches
FBLFast Blanking: DC signal
accompanying RGB signals
FBL-PIPThe fast blanking signal for PIP
FBL-TXTThe fast blanking signal for TXT. It has
a higher priority than FBL-PIP
FLASHFlash memory
FMField Memory or Frequency
Modulation
GND-DRIVEA separate ground for the line drive
towards the line driver
HA50Horizontal Acquisition 1fh: horizontal
sync pulse coming out of the HIP
HD100Horizontal Drive 2fh: horizontal sync
pulse coming out of the feature-box
HFBHorizontal Flyback Pulse: horizontal
sync pulse from large signal deflection
HPHeadphone
InterlacedScan mode where two fields are used
to form one frame. Each field contains
half the number of the total amount of
Page 30
EN 30TF1.1E AA9.
lines. The fields are written in 'pairs',
causing line flicker
Last StatusThe settings last chosen by the
customer, read, and stored in RAM or
in the NVM. They are called at start-up
of the set to configure it according the
customers wishes
LDPLine Deflection Protection signal,
derived from the EW-current and
voltage
LEDLight Emitting Diode
LINE DRIVELine drive signal (for the Line
transistor)
LNALow Noise Adapter
LORELOcal REgression based noise
reduction
LSPLarge signal panel
MSPMulti-standard Sound Processor: ITT
sound decoder of EM5E
MUTEMute-Line
NCNot Connected
NVMNon Volatile Memory: IC containing
TV related data e.g. alignments
O/COpen Circuit
ON/OFF LEDOn/Off control signal for the LED
OSDOn Screen Display
OTCOn screen display Teletext and
Control
PCBPrinted Circuit Board
PIPPicture In Picture
Progressive ScanScan mode where all scan lines are
displayed in one frame at the same
time, creating a double vertical
resolution.
PTPPicture Tube Panel
RAMRandom Access Memory
RCRemote Control
RC5 / RC6Signal protocol from the remote
control receiver
RESETReset signal
RGB-PIPRGB-input for PIP
RGB-TXTRGB-input for Teletext and OSD
RGB-VCRGB-input to the Picture Tube Panel
ROMRead Only Memory
S/CShort Circuit
SCL-FClock signal on fast I2C bus
SDStandard Definition
SDA-FData signal on fast I2C bus
SIFSound Intermediate Frequency
SNERTSynchronous No parity Eight bit
Reception and Transmit
SSBSmall Signal Board
STBYStandby
SWSubwoofer
SWANSpatial Weighted Averaging Noise
output towards external amplifier
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
X-RAY-PROTA protection signal for too high X-ray
radiation
XTALQuartz crystal
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Page 31
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.7IC Data Sheets
In this paragraph, the internal block diagrams and pinning are
given of ICs that are drawn as a 'black box' in the electrical
diagrams (with the exception of 'memory' and 'logic' ICs).