2. Technical Specifications, Connections, and Chassis OverviewEN 2 L03.1L AA1.
1. Technical Specifications, Connections, and Chassis Overview
1.1 Technical Specifications
1.1.1 Reception
Tuning system : PLL
Colour systems : NTSC M
: PAL M
: PAL N
Sound systems : Mono, or
: BTSC with SAP
A/V connections : NTSC M
: PAL M
: PAL N
Channel selections : 181 Presets/
Channels
: Full-Cable
IF frequency : 45.75 MHz
Aerial input : 75 ohm (F type), Coax
1.1.2 Miscellaneous
Audio output : Mono: 3 W rms
: Stereo: 2 x 3 W rms
Mains voltage : 90 - 276 V (± 10 %)
Mains frequency : 50 / 60 Hz (± 5 %)
Ambient temperature : + 5 to + 45 deg. C
Minimum air pressure : 60 kPa (=600 mBar)
Maximum humidity : 90 %
Power consumption : 36 W (14”) to
: 50 W (21”)
Standby Power consumption : < 3 W
1.2 Connections
1.2.1 Front Connections and Front / Top Control
Figure 1-1 Front Connections.
Headphone
1 - Headphone,
3.5 mm 8 - 600 Ω / 4 mW
Audio / Video In
2 - Video 1 Vpp / 75 ohm
3 - Audio Mono 0.2 V rms / 10 kohm
1.2.2 Rear Connections
Figure 1-2 Rear Connections.
Monitor Out
1 - Video 1 Vpp / 75 ohm
2 - Audio L (0.5 Vrms / 1 kohm)
3 - Audio R (0.5 Vrms / 1 kohm)
AV1 In (YUV)
1 - Y 0.7 Vpp / 75 ohm
2 - U 0.7 Vpp / 75 ohm
3 - V 0.7 Vpp / 75 ohm
AV1 In
4 - Video 1 Vpp / 75 ohm
5 - Audio L (0.5 Vrms / 10 kohm)
6 - Audio R (0.5 V rms / 10 kohm)
INSTALL MENU
- VOLUME +
LED IR LED
VIDEO
AUDIO
- VOLUME +
CHANNEL
INSTALL/MENU
TOP CONTROL
CL36532044.019.eps
060603
V+V-
P-
P+
MONITOR
OUT
AV1
IN
AV1 INCVIAVout
CL36532044_020.eps
200603
V
L
R
Y
U
V
V
L
R
75 Ohm ANT.
3. Technical Specifications, Connections, and Chassis Overview EN 3L03.1L AA 1.
1.3 Chassis Overview
Figure 1-3 Chassis overview
B1
MAIN
CHASSIS
PANEL
A1
E
A2
A3
A4
A8
POWER SUPPLY
TOP CONTROL PANEL
LINE DEFLECTION
A5
AUDIO AMP + MONO SOUND PROC.
TUNER IF
VIDEO PROCESSING
FRONT I/O + FRONT CONTROL
+ HEADPHONE
AUDIO PROCESSING (STEREO +SAP)
REAR I/O CINCH
DVD POWER SUPPLY
A9
CL 36532044_021.eps
020603
CRT PANEL
A6
A7
4. Safety and Maintenance Instructions, Warnings, and NotesEN 4 L03.1L AA2.
2. Safety and Maintenance Instructions, Warnings, and Notes
Index of this chapter:
1. Safety Instructions for Repairs
2. Maintenance Instructions
3. Warnings
4. Notes
2.1 Safety Instructions for Repairs
Safety regulations require that during a repair:
• Due to the 'hot' parts of this chassis, the set must be
connected to the AC power via an isolation transformer.
• Safety components, indicated by the symbol , should be
replaced by components identical to the original ones.
• When replacing the CRT, safety goggles must be worn.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay particular attention to the
following points:
• General repair instruction: as a strict precaution, we advise
you to resolder the solder connections through which the
horizontal deflection current is flowing, in particular:
– all pins of the line output transformer (LOT)
– fly-back capacitor(s)
– S-correction capacitor(s)
– line output transistor
– pins of the connector with wires to the deflection coil
– other components through which the deflection current
flows.
Note: This resoldering is advised to prevent bad connections
due to metal fatigue in solder connections and is therefore only
necessary for television sets more than two years old.
• Route the wire trees and EHT cable correctly and secure
them with the mounted cable clamps.
• Check the insulation of the AC power cord for external
damage.
• Check the strain relief of the AC power cord for proper
function, to prevent the cord from touching the CRT, hot
components, or heat sinks.
• Check the electrical DC resistance between the AC plug
and the secondary side (only for sets that have an isolated
power supply). Do this as follows:
1. Unplug the AC power cord and connect a wire between
the two pins of the AC plug.
2. Turn on the main power switch (keep the AC power
cord unplugged!).
3. Measure the resistance value between the pins of the
AC plug and the metal shielding of the tuner or the
aerial connection of the set. The reading should be
between 4.5 MOhm and 12 MOhm.
4. Switch the TV 'off' and remove the wire between the
two pins of the AC plug.
• Check the cabinet for defects, to prevent the possibility of
the customer touching any internal parts.
2.2 Maintenance Instructions
It is recommended to have a maintenance inspection carried
out by qualified service personnel. The interval depends on the
usage conditions:
• When the set is used under normal circumstances, for
example in a living room, the recommended interval is
three to five years.
• When the set is used in an environment with higher dust,
grease or moisture levels, for example in a kitchen, the
recommended interval is one year.
• The maintenance inspection includes the following actions:
1. Perform the 'general repair instruction' noted above.
2. Clean the power supply and deflection circuitry on the
chassis.
3. Clean the picture tube panel and the neck of the picture
tube.
2.3 Warnings
• In order to prevent damage to ICs and transistors, avoid all
high voltage flashovers. In order to prevent damage to the
picture tube, use the method shown in Fig. 2-1, to
discharge the picture tube. Use a high voltage probe and a
multi-meter (position Vdc). Discharge until the meter
reading is 0 V (after approx. 30 s).
Figure 2-1 Discharge picture tube
• All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD ). Careless handling
during repair can reduce life drastically. When repairing,
make sure that 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 potential.
• Available ESD protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable, and ground cable)
4822 310 10671.
– Wristband tester 4822 344 13999.
• Together with the deflection unit and any multi-pole unit,
flat square picture tubes form an integrated unit. The
deflection and the multi-pole units are set optimally at the
factory. Adjustment of this unit during repair is therefore not
recommended.
• Be careful during measurements in the high voltage
section and on the picture tube.
• 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.
2.4 Notes
2.4.1 General
• Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (), or hot ground (), depending
on the area of circuitry being tested.
• The voltages and waveforms shown in the diagrams are
indicative. Measure them in the Service Default Mode (see
“Service Modes, Error Codes, and Faultfinding” section)
with a color bar signal and stereo sound (L: 3 kHz, R: 1 kHz
unless stated otherwise) and picture carrier at 61.25 MHz
(NTSC, channel 3).
• Where necessary, measure the waveforms and voltages
with () and without () aerial signal. Measure the
voltages in the power supply section both in normal
operation () and in standby (). These values are
indicated by means of the appropriate symbols.
V
CL96532156_040.eps
140501
5. Safety and Maintenance Instructions, Warnings, and Notes EN 5L03.1L AA 2.
• The picture tube panel has printed spark gaps. Each spark
gap is connected between an electrode of the picture tube
and the Aquadag coating.
• The semiconductors indicated in the circuit diagram and in
the parts lists are completely interchangeable per position
with the semiconductors in the unit, irrespective of the type
indication on these semiconductors.
2.4.2 Schematic 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 expressed in Micro-Farads (µ =
x10-6), Nano-Farads (n = x10-9), or Pico-Farads
(p = x10-12
).
• 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.
2.4.3 Practical 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 - 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.
• Before powering up the TV set with the back cover off
(or on a test fixture), attach a clip lead to the CRT DAG
ground and to a screwdriver blade that has a well insulated
handle. After the TV is powered on and high voltage has
developed, probe the anode lead with the blade, starting at
the case of the High Voltage Transformer (flyback - IFT).
Move the blade to within two inches of the connector of the
CRT. If there is an arc, you found it the easy way,
without getting a shock! If there is an arc to the
screwdriver blade, replace the part which is causing the
problem; the High Voltage Transformer or the lead (if it is
removable).
6. Directions for UseEN 6 L03.1L AA3.
3. Directions for Use
5
YoucanviewtheplaybackofVCRtapes(Video
Discplayers,camcorders,etc.)byusingtheAUDIO
andVIDEOINPUTsocketsontherearoftheTV.
–ConnecttheVIDEOandAUDIOIN
socketsontherearoftheTVtothe
AUDIOandVIDEOOUTsocketson
theVCR.
YoucanviewtheplaybackofDVDdiscsbyusing
theCOMPONENTVIDEOINPUTsocketsonthe
rearoftheTV.
–ConnecttheY,PbandthePrINPUT
socketsontheTVtotheY,PbandPr
OUTPUTsocketsontheDVDtoview
playbackofDVDdiscs.
CONNECTINGTHEAUDIO/VIDEOSOCKETS(PLAYBACK)
DVD(Equipped
with"Y","Pb"
and"Pr"and
Outputsockets)OUTOUT
AUDIORL
AVsockets
onrearofTV
AV1inAVoutCVI
L
R
VIDEO
AUDIO
YPbPr
BackofDVD
VCR(Equipped
withVideoand
AudioInput
sockets
ANTENNA
OUT
IN
OUT
IN
AUDIORL
VIDEO
OUT
IN
AVsockets
onrearofTV
BackofVCR
AV1inAVoutCVI
L
R
VIDEO
AUDIO
4
PositioningoftheTVset
•PlaceyourTVsetonasolidbase,strongenough
towithstandtheweightoftheset.
•Leaveaspaceofatleast10cmaroundeachside
oftheTVsettoalloeforproperventilation.
ªDonotplaceTVsetneararadiatororother
sourcesofheat.
•DonotplaceTVsetwhereitcanbeexposedto
rainorexcessivemoisture.
AntennaConnection
•Connecttheaerialplugtotheantennasocket¬¬¬¬¬
onthebackcover.
MainsConnection
•Insertthemainsplugintothewallsocket.
Forcorrectmainsvoltage,refertotypestickerat
therearoftheTVset
•Consultyourdealerifmainssupplyisdifferent.
Note:Thisdiagramisnotrepresentativeofthe
actualplugandsocket.
SwitchingontheSet
•Pressthemainpowerbuttontoswitchon/
offtheTV.
•Ifthesetisonstandby(indicatorisred),
pressthePowerbuttonontheremote
controltoswitchonset.
HOOKINGUPYOURTV(BASICCONNECTION)
USE/CAREOFREMOTECONTROL
•Insertthecorrecttypeofbatteriesintothe
compartment.
•Ensurethebatteriesareplacedintheright
direction.
10cm
10cm
75
g
➩10cm
➩
➩
7. Directions for Use EN 7L03.1L AA 3.
7
OSD
POWER
MENU
SMARTPICTURESMARTSOUNDSURF
TIMERSTEREOAV
DVD
MUTE
SLEEPCC
123
456
789
0
VOLCH
àÉáÇ
FUNCTIONSOFREMOTECONTROL
&
“
(
§
ç
0
‘
1
é
!
è
&Powerbutton
–Switchsetofftemporarilytostandbymode.
(Theredlightindicatorlightsupwhentheset
isonstandbymode).
–Toswitchonsetfromstandbymode,press
Channel+/–,Digit(0-9)orPowerbutton.
éDVDButtons
Allowsyouaccesstotherewind,stop,playand
forwardfunctionsoftheDVDplayer.
“TimerButton
Allowsyoutosettheclocktoswitchtoanother
channelataspecifiedtimewhileyouarewatching
anotherchannelorwhenthesetisonstandby
mode.
‘Stereobutton
AllowsyoutoswitchfromStereotoMonosound
duringstereotransmission
(SmartSoundButton
PresstheSmartSoundbuttonrepeatedlyto
access4differenttypesofsoundsettingsand
chooseyourdesiredsetting.
§Surfbutton
Allowsyoutoselectuptoamaximumof8
channelsandviewquicklytheselectedchannels.
èMenuButton
Displaysthemainmenu.Alsoexitsmenufrom
screen.
!CursorLeftButton
Allowsyoutoselectthesub-menusandadjust
thesettings.
çCursorDownButton
Allowsyoutoselectthenextitemonthemenu.
0Volume+/–Button
Increasesordecreasesvolume.
1SleepButton
Allowsyoutoselectatimeperiodafterwhichthe
setwillswitchtostandbymodeautomatically.
(Refertosectionon“ActivatingtheSleeptimer”
6
CONNECTINGTHEAUDIO/VIDEOSOCKETS(RECORDING)
Connectionforrecordingfrom
theTVchannel
–ConnectthecorrespondingINPUT
socketsoftheVCRtothe
MONITOROUTPUTsocketson
therearoftheTV.
–ToenhancethesoundofyourTV,
connecttheAUDIOLandR
socketstoanexternalaudioystem
insteadoftheVCR.Formono
equipment,connectonlythe
AUDIOLsocket.
Connectionforrecordingfrom
oneVCRtoanotherVCR
–ConnectthesocketsoftheVCR
whichyouwishtorecordfrom,tothe
correspondingsocketsateitherAV1
orAV2
–Connectthesocketsofthereceiving
VCRtotheMONITOROUTPUT
socketsontherearoftheTV.
ANTENNA
OUT
IN
OUT
IN
AUDIORL
VIDEO
OUT
IN
VCR(Equipped
withVideoand
AudioInput
sockets
AVsockets
onrearofTV
AV1inAVoutCVI
L
R
VIDEO
AUDIO
VCR2
ANTENNA
OUT
IN
OUT
IN
AUDIORL
VIDEO
OUT
IN
VCR(Equipped
withVideoand
AudioInput
sockets
ANTENNA
OUT
IN
OUT
IN
AUDIORL
VIDEO
OUT
IN
AVsockets
onrearofTV
VCR1
BackofVCR
AV1inAVoutCVI
L
R
VIDEO
AUDIO
15. Mechanical Instructions EN 15L03.1L AA 4.
4. Mechanical Instructions
Index:
1. Rear cover removal.
2. Service Position Main panel.
3. Rear cover mounting.
4.1 Rear Cover Removal
1. Remove all fixation screws of the rear cover.
2. Now pull the rear cover in backward direction to remove it.
4.2 Service Position Main Panel
1. Disconnect the strain relief of the AC power cord.
2. Remove the main panel, by pushing the two center clips
outward [1]. At the same time pull the panel away from the
CRT [2].
3. If necessary disconnect the degaussing coil by removing
the cable from (red) connector 0212.
4. Move the panel somewhat to the left and flip it 90 degrees
[3], with the components towards the CRT.
Figure 4-1 Service Position
4.3 Rear Cover Mounting
Before you mount the rear cover, perform the following checks:
1. Check whether the mains cord is mounted correctly in its
guiding brackets.
2. Re-place the strain relief of the AC power cord into the
cabinet.
3. Check whether all cables are replaced in their original
position
A
B
1
CL 16532016_006.eps
220501
2
1
3
16. Service Modes, Error Codes, and Fault FindingEN 16 L03.1L AA5.
5. Service Modes, Error Codes, and Fault Finding
Index:
1. Test points.
2. Service Modes.
3. Problems and Solving Tips.
4. ComPair
5. The Blinking LED Procedure.
6. Protections.
7. Repair Tips.
5.1 Test Points
This chassis is equipped with test points in the service printing.
In the schematics test points are identified with a rectangle box
around Fxxx or Ixxx.
Table 5-1 Test Point Overview
Perform measurements under the following conditions:
• Service Default Alignment Mode.
• Video: color bar signal.
• Audio: 3 kHz left, 1 kHz right.
5.2 Service Modes
Service Default Alignment Mode (SDAM) offers several
features for the service technician.
There is also the option of using ComPair, a hardware interface
between a computer (see requirements) and the TV chassis. It
offers the ability of structured trouble shooting, error code
reading and software version readout for all chassis.
Requirements: To run ComPair on a computer (laptop or
desktop) requires, as a minimum, a 486 processor, Windows
3.1 and a CD-ROM drive. A Pentium Processor and Windows
95/98 are however preferred (see also paragraph 5.4).
Table 5-2 SW Cluster
5.2.1 Service Default Alignment Mode (SDAM)
Purpose
• To change option settings.
• To create a predefined setting to get the same
measurement results as given in this manual.
• To display / clear the error code buffer.
• To override SW protections.
• To perform alignments.
• To start the blinking LED procedure.
Specifications
• Tuning frequency: 61.25 MHz (channel 3) for NTSC-sets
(LATAM).
• Color system: PAL-M for LATAM BI/TRI/FOUR-NORMA.
• All picture settings at 50 % (brightness, color contrast,
hue).
• Bass, treble and balance at 50 %; volume at 25 %.
• All service-unfriendly modes (if present) are disabled, like:
– (Sleep) timer,
– Child/parental lock,
– Blue mute,
– Hotel/hospitality mode
– Auto switch-off (when no “IDENT” video signal is
received for 15 minutes),
– Skip / blank of non-favorite presets / channels,
– Auto store of personal presets,
– Auto user menu time-out.
• Operation hours counter.
• Software version.
• Option settings.
• Error buffer reading and erasing.
• Software alignments.
How to activate SDAM
Use one of the following methods:
• Use a standard customer RC-transmitter and key in the
code 062596 directly followed by the “M” (menu) button or
• Temporarily connect jumper wire 9257 to pin 4 of 7200 on
the mono carrier (see Fig. 8-1) and apply AC power. Then
press the power button (remove the connection after start-
up).
Caution: Activating SDAM by temporarily connecting
jumper wire 9257 to pin 4 of 7200 will override the +8V-
protection. Do this only for a short period. When doing this,
the service-technician must know exactly what he is doing,
as it could lead to damaging the set.
• Or via ComPair.
After activating SDAM, the following screen is visible, with S at
the upper right side for recognition.
Figure 5-1 SDAM Menu
• LLLL. This is the operation hours counter. It counts the
normal operation hours, not the standby hours.
TEST POINT CIRCUIT DIAGRAM
Fxxx, Ixxx POWER SUPPLY A1
Fxxx, Ixxx Deflection A2
Fxxx, Ixxx TUNER & IF A3
Fxxx, Ixxx VIDEO PROCESSING A4
Fxxx, Ixxx AUDIO PROCESSING A5
Fxxx, Ixxx AUDIO AMPLIFIER +
MONO SOUND
PROCESSING
A6
Fxxx, Ixxx FRONT IO + FRONT
CONTROL + HEAD-
PHONE
A7
Fxxx, Ixxx DVD POWER SUPPLY A9
Fxxx, Ixxx CRT PANEL B1
SW
Cluster
Software
name
UOC
type
UOC
Diversity
Special
Features
L3SLM1 L03LM1 x.y TDA9370 55K
ROM Size
Trinorma
Mono
L3SLM1 L03LM1 x.y TDA9377 55K
ROM Size
NTSC Mono
L3SLS1 L03LS1 x.y TDA9370 55K
ROM Size
Trinorma
BTSC SAP
Stereo
L3SLS1 L03LS1 x.y TDA9377 55K
ROM Size
NTSC BTSC
SAP Stereo
Abbreviations in Software name: L = Latam, M = Mono, S =
Stereo.
L L L L A A A B C D X . Y S
E R R X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X
C L E A R C L E A R ?
O P T I O N S >
0A K B
T U N E R >
W H I T E T O N E >
G E O M E T R Y >
A U D I O >
CL 36532044_033.eps
130603
17. Service Modes, Error Codes, and Fault Finding EN 17L03.1L AA 5.
• AAABCD-X.Y. This is the software identification of the
main micro controller:
– A = the project name (L03).
– B = the region: E= Europe, A= Asia Pacific, U= NAFTA,
L= LATAM.
– C = the feature of software diversity: N = stereo non-
DBX, S = stereo dBx, M = mono, D = DVD
– D = the language cluster number:
– X = the main software version number.
– Y = the sub software version number.
• S. Indication of the actual mode. S= SDAM= Service
Default Alignment mode.
• ERR. The error buffer. Five errors possible.
• OPTION BYTES. Seven codes possible.
• CLEAR. Erase the contents of the error buffer. Select the
CLEAR menu item and press the CURSOR RIGHT key.
The content of the error buffer is cleared.
• OPTIONS. To set the Option Bytes. See chapter 8.3.1 for
a detailed description.
• AKB. Disable (0) or enable (1) the “black current loop”
(AKB = Auto Kine Bias).
• TUNER. To align the Tuner. See chapter 8.3.2 for a
detailed description.
• WHITE TONE. To align the White Tone. See chapter 8.3.3
for a detailed description.
• GEOMETRY. To align the set geometry. See chapter 8.3.4
for a detailed description.
• AUDIO. Use default value (Stereo set only), align when
necessary. See chapter 8.3.5 for a detailed description.
How to navigate
• In SDAM, select menu items with the CURSOR UP/DOWN
key on the remote control transmitter. The selected item
will be highlighted. When not all menu items fit on the
screen, move the CURSOR UP/DOWN key to display the
next / previous menu items.
• 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 button twice, the set will switch
to the normal user menus (with the SDAM mode still active
in the background). To return to the SDAM menu press the
OSD / STATUS button.
• When you press the MENU key in a submenu, you will
return to the previous menu.
How to store settings
To store settings, leave the SDAM mode with the Standby
button on the remote.
How to exit
Switch the set to STANDBY by pressing the power button on
the remote control (if you switch the set 'off' by removing the AC
power, the set will return in SDAM when AC power is re-
applied). The error buffer is not cleared.
5.3 Problems and Solving Tips
5.3.1 Picture Problems
Note: Below described problems are all related to the TV
settings. The procedures to change the value (or status) of the
different settings are described.
No colors / noise in picture
1. Press the MENU button on the remote control.
2. Select the INSTALLATION sub menu.
3. Select and change the SYSTEM setting until picture and
sound are correct.
4. Select the STORE menu item.
Colors not correct / unstable picture
1. Press the MENU button on the remote control.
2. Select the INSTALLATION sub menu.
3. Select and change the SYSTEM setting until picture and
sound are correct.
4. Select the STORE menu item.
Picture too dark or too bright
Increase / decrease the BRIGHTNESS and / or the
CONTRAST value when:
• The picture improves after you have pressed the “Smart
Picture” button on the remote control.
The new “Personal” preference value is automatically stored.
White line around picture elements and text
Decrease the SHARPNESS value when:
• The picture improves after you have pressed the “Smart
Picture” button on the remote control.
The new “Personal” preference value is automatically stored.
Snowy picture
• No or bad antenna signal. Connect a proper antenna
signal.
• Antenna not connected. Connect the antenna.
• No channel / pre-set is stored at this program number. Go
to the INSTALL menu and store a proper channel at this
program number.
• The tuner is faulty (in this case the CODES line will contain
error number 10). Check the tuner and replace / repair if
necessary.
Snowy picture and/or unstable picture
• A scrambled or decoded signal is received.
Black and white picture
Increase the COLOR value when:
• The picture improves after you have pressed the “Smart
Picture” button on the remote control.
The new “Personal” preference value is automatically stored.
Menu text not sharp enough
Decrease the CONTRAST value when:
The picture improves after you have pressed the “Smart
Picture” button on the remote control.
The new “Personal” preference value is automatically stored.
5.3.2 Sound Problems
No sound or sound too loud (after channel change /
switching on)
Increase / decrease the VOLUME level.
Press the Smart Sound button repeatedly to access 4 different
types of sound settings and choose your desired setting.
5.4 ComPair
5.4.1 Introduction
ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (Dealer Service Tool),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:
• ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.
• ComPair allows very detailed diagnostics (on I2C level)
and is therefore capable of accurately indicating problem
areas. You do not have to know anything about I2C
commands yourself because ComPair takes care of this.
• ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the
18. Service Modes, Error Codes, and Fault FindingEN 18 L03.1L AA5.
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the SearchMan electronic manual of the defective chassis,
schematics and PWBs are only a mouse click away.
5.4.2 Specifications
ComPair consists of a Windows based faultfinding program
and an interface box between PC and the (defective) product.
The ComPair interface box is connected to the PC via a serial
or RS232 cable.
In case of the L03 chassis, the ComPair interface box and the
TV communicate via a bi-directional service cable via the
service connector (located on the Main panel, see also figure
8-1 suffix D).
The ComPair faultfinding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:
• Automatically (by communication with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I2C level. ComPair
can access the I2C bus of the television. ComPair can
send and receive I2C commands to the micro controller of
the television. In this way, it is possible for ComPair to
communicate (read and write) to devices on the I2C
busses of the TV-set.
• Manually (by asking questions to you): Automatic
diagnosis is only possible if the micro controller of the
television is working correctly and only to a certain extend.
When this is not the case, ComPair will guide you through
the faultfinding tree by asking you questions (e.g. Does the
screen give a picture? Click on the correct answer: YES /
NO) and showing you examples (e.g. Measure test-point
F001 and click on the correct oscillogram you see on the
oscilloscope). You can answer by clicking on a link (e.g.
text or a waveform picture) that will bring you to the next
step in the faultfinding process.
By a combination of automatic diagnostics and an interactive
question / answer procedure, ComPair will enable you to find
most problems in a fast and effective way.
Beside fault finding, ComPair provides some additional
features like:
• Up- or downloading of pre-sets.
• Managing of pre-set lists.
• If both ComPair and SearchMan (Electronic Service
Manual) are installed, all the schematics and the PWBs of
the set are available by clicking on the appropriate
hyperlink. Example: Measure the DC-voltage on capacitor
C2568 (Schematic/Panel) at the Mono-carrier.
– Click on the 'Panel' hyperlink to automatically show the
PWB with a highlighted capacitor C2568.
– Click on the 'Schematic' hyperlink to automatically
show the position of the highlighted capacitor.
5.4.3 How To Connect ComPair
1. First install the ComPair Browser software (see the Quick
Reference Card for installation instructions).
2. Connect the RS232 interface cable between a free serial
(COM) port of your PC and the PC connector (marked with
“PC”) of the ComPair interface.
3. Connect the AC power adapter to the supply connector
(marked with “POWER 9V DC”) on the ComPair interface.
4. Switch the ComPair interface OFF.
5. Switch the television set OFF (remove the AC power).
6. Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface
(marked with “I2C”) and the ComPair connector on the
mono carrier (see figure 8-1 suffix D).
7. Plug the AC power adapter in the AC power outlet and
switch on the interface. The green and red LEDs light up
together. The red LED extinguishes after approx. 1 second
while the green LED remains lit.
8. Start the ComPair program and read the “introduction”
chapter.
Figure 5-2 ComPair connection
5.4.4 How To Order
ComPair order codes:
• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.
• ComPair interface (excluding transformer): 4822 727
21631.
• Starter kit ComPair32 software (registration version): 3122
785 60040.
• Starter kit SearchMan32 software: 3122 785 60050.
• ComPair32 CD (update): 3122 785 60070.
• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003).
Note: If you encounter any problems, contact your local
support desk.
• ComPair interface cable: 3122 785 90004.
5.4.5 Error Buffer
The error code buffer contains all detected errors since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is written at the left side and all other errors shift one
position to the right.
5.4.6 How To Read The Error Buffer
You can read out the error buffer in 3 ways:
• On screen via the SDAM (only if you have a picture).
Examples:
– ERROR: 0 0 0 0 0: No errors detected
– ERROR: 6 0 0 0 0: Error code 6 is the last and only
detected error
– ERROR: 9 6 0 0 0: Error code 6 was first detected and
error code 9 is the last detected (newest) error
• Via the blinking LED procedure (when you have no
picture). See next paragraph.
• Via ComPair.
5.4.7 How To Clear The Error Buffer
The error code buffer is cleared in the following cases:
• By activation of the CLEAR command in the SDAM menu:
• If the content of the error buffer has not changed for 50
hours, it resets automatically.
Note:
When leaving SDAM by disconnecting the set from AC power,
the error buffer is not reset.
86532027_003.EPS
050898
PC VCR I2CPower
9V DC
19. Service Modes, Error Codes, and Fault Finding EN 19L03.1L AA 5.
5.4.8 Error Codes
In case of non-intermittent faults, clear the error buffer before
you begin the repair. These to ensure that old error codes are
no longer present. It is wise to write down the errors of the error
buffer before you clear it.
If possible, check the entire contents of the error buffer. In
some situations an error code is only the result of another error
code and not the actual cause (e.g., a fault in the protection
detection circuitry can also lead to a protection).
Table 5-3 Error Code Table
5.5 The Blinking LED Procedure
Via this procedure you can make the contents of the error
buffer visible via the front LED. This is especially useful when
there is no picture.
When the SDAM is activated, the LED will blink the contents of
the error-buffer.
• n short blinks (n = 1 - 14),
• When all the error-codes are displayed, the sequence
finishes with a LED blink of 3 s,
• The sequence starts again.
Example of error buffer: 12 9 6 0 0
After activating SDAM:
• 12 short blinks followed by a pause of 3 s,
• 9 short blinks followed by a pause of 3 s,
• 6 short blinks followed by a pause of 3 s,
• 1 long blink of 3 s to finish the sequence,
• the sequence starts again.
5.6 Protections
If a fault situation is detected an error code will be generated
and if necessary the set will be put in the protection mode.
Blinking of the red LED at a frequency of 3 Hz indicates the
protection mode. In some error cases the microprocessor does
not put the set in the protection mode. The error codes of the
error buffer can be read via the service menu (SDAM), the
blinking LED procedure or via ComPair.
To get a quick diagnosis the chassis has one service mode
implemented:
• The Service Default Alignment Mode (SDAM). Start-up of
the set in a predefined way and adjustment of the set via a
menu and with the help of test patterns.
5.7 Repair Tips
Below some failure symptoms are given, followed by a repair
tip.
• Set is dead and makes hiccupping sound. “MainSupply”
is available. Hiccupping stops when de-soldering L5563,
meaning that problem is in the “MainSupply” line. No output
voltages at LOT, no horizontal deflection. Reason: line
transistor 7421 is defective.
• Set is dead, and makes no sound. Check power supply
IC 7520. Result: voltage at pins 2, 6, 7, 9 and 11 are about
180 V and pin 14 is 0 V. The reason why the voltage on
these pins is so high is because the output driver (pin 11)
has an open load. That is why MOSFET 7521 is not able to
switch. Reason: feedback resistor 3523 is defective.
Caution: be careful measuring on the gate of 7521;
circuitry is very high ohmic and can easily be damaged!
• Set is in hiccup mode and shuts down after 8 s. Blinking
LED (set in SDAM mode) indicates error 5. As it is unlikely
that the “POR” and “+8V protection” happen at the same
time, measure the “+8V”. If this voltage is missing, check
transistor 7491 & 7496.
• Set is non-stop in hiccup mode. Set is in over current
mode; check the secondary sensing (opto coupler 7515)
and the “MainSupply” voltage. Signal “Stdby_con” must be
logic low under normal operation conditions and goes to
high (3.3 V) under standby and fault conditions.
• Set turns on, but without picture and sound. The screen
shows snow, but OSD and other menus are okay. Blinking
LED procedure indicates error 11, so problem is expected
in the tuner (pos. 1000). Check presence of supply
voltages. As “Vlotaux+5V” at pin 5 and 7 are okay,
“VT_supply” at pin 9 is missing. Conclusion: resistors 3449
& 3450 are defective
ERROR Device Error description Check item Diagram
0 Not applicable No Error - -
1 Not applicable X-Ray Protection (USA) - -
2 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection 7461, 7462, 7463, 7464, 7465, 7466 A2
4 AN5891K & AN5829S Tone control & Audio processor I2C identification error 7821 (tone IC), 7841 (Stereo/Sap) A5
5 TDA93XX POR 3.3V / 8V Protection 7200, 7541, 7491, 7493, 7496 A4, A1
6 I2C bus General I2C bus error 7200, 3604, 3605 A4
7 Not applicable - - -
8 Not applicable E/W Protection (Large Screen) - -
9 M24C16 NVM I2C identification error 7641, 3641, 3642, 3643 A4
10 Tuner Tuner I2C identification error 1000, 3003, 3004 A3
11 Not applicable Black current loop protection 3313, 7307, 7308, 7309, 7310, 7311,
7312, 7313, 7314, 7315, 7316, 7317,
7318, CRT
B1
12 Not applicable MAP I2C identification error (USA) - -
13 Not applicable VC I2C identification error (Eu) - -
14 Not applicable DVD I2C identification error - -
21. Block Diagram, I2C, Supply Voltage, and Testpoint Overview 21L03.1L AA 6.
6. Block Diagram, I2C, Supply Voltage, and Testpoint Overview
Block Diagram
POWER SUPPLY 0212
43
2
1
2
8
9
12
13
3
6
2 5
6
1
3504
CL 36532044_030.eps
190603
F510
I505
F567
F568
I533
I848 I830
I847 I836
0211
0231 (NOT USA)
MAINS
SWITCH
3543
5562
3544
6522
2528
A1
Degaussing
Coil
t
1515
5520
7580
7520
TEA1506
7200-D
TDA93XX
DRAIN
DRIVER
SENSE
DEMAG
CONTROL
IC
CTRL
Vcc
ENERGIZING
CIRCUIT
(optional)
AC
DC
65045500
10
1
2
4
3
1500
T4E
2503 6562
6563
6561 MAIN SUPPLY
-12V
5563
5560 6560
F542
F540
I553
Vaux/Vaudio
PW-ADJ
DVD-SUPPLY
3549
A4
A4
A9
A2
Std_Con
HOT GROUND COLD GROUND
7540, 6540
REFERENCE
CIRCUIT
7541
+3V3B
STANDBY
CIRCUIT
7515
TCET1103
3527
3525
3523
3526
752114
11
9
3522
7
D
S
G
F566
I514
6520
3528
7523
3506
5570 6570
(OPTIONAL)
1185 1124
1184 1121
DVD POWER SUPPLY
(optional)
A9
1
3
5
1572
1
4
1571
A1
A3
FRONT I/OA7
V
L
AUDIO PROCESSING (STEREO + SAP)
(FOR STEREO SETS ONLY)
A5REAR I/OA8
MONO
V
L
6
1
4
2
1
3
2
1
3
6
1
4
V
L
L1_IN
R1_IN
R
R
STEREO
F905
AUDIO AMPLIFIERA6
A4
7901 AN7522N (STEREO)
7902 AN7523N (MONO)
6 2 L+
L
8
9VOLUME
1
0280
F906
4 L-
F907
10 R-
F908
12 R+
R
4
5
1
2Vaux/Vaudio
A5 A4
A5
A8
A5
A5
A4
A4
A4
V
L
MONITOR
OUTPUT
YUV
INPUT
AV1
FRAME
LINE
R
L-OUT
SEL_AV1_AV2
SY_CVBS_IN
L1_IN
7841
AN5829S
7821
AN5891K
R1_IN
7161,
7162
CVBS_TER_OUT
7101
R-OUT
V
L
R
G-SC1_IN_Y_IN
B-SC1_IN_U_IN
R-SC1_IN_V_IN
A4
A4
A4
A5
A5
C-IN
L2-IN
R2-IN
V
L
R
4
6
5
1
5
4
32
SVHS
AV2
(OPT.)
STATUS2
MATRIX
SWITCH
10
9
11
A8
A8
A4
A8
R2_IN
24
21
22
3
22
12
15
L_OUT
Main_OutR
Main_OutL
R_OUT
L_OUT
R_OUT
23
2
3
14
19
3842
3843
SDA
SCL
3828
3827
L_OUT
MONO
L2_IN
SWITCH
STEREO
+
SAP
DEMODULATOR
ERR
4
SURR
TONE
ERR
4
18
14
13
7451
3549
EHT
7570
SI2306D
7571
L4978
3 2
1
3571VTsupply-A
DVD_SUPPLY
MAINSUPPLY
5571 5572
5575
5574
5573
Vcc
4
1
CONTROL
OUT
5
6571
+12V-DVD
+8V-DVD
DEFLECTIONA2SYNC.A4
A1
I461
F461
F422
F449
F448
A2
A1
F425
I462
I462
I468
-12V
7421
BUT11APX
5461
F407
3424
0221
1
2
HOR.
DEFL.
COIL
0222
1
2
VERT.
DEFL.
COIL
5445
1
V
H
7
2
36
FOCUS VG2
EHT
10
EHT
A4EHT 0
A4
A4
A3
A4
A2
BEAM-
LIMIT
3447
9
33
22
34
21
20
6446
8
5
4
6463
3445
3446
3475
VT_SUPPLY
6447
+160V
-12V
FILAMENT
3448
3459
6452
6451
F446
6444
3443
3444
FRAME OUT
6422
2423
6408
6407
2406
5401 3402
3403
7423
7422
3425
6423
Vaux/Vaudio
FILAMENT
A2
EHT 0
H-DRIVE
Hflybk
H-DRIVE
2nd LOOP
H-SHIFT
V-DRVE
+
GEOMETRY
VIDEO
INTERNAL
EW
+
GEOMETRY
H/V SYNC
SEPERATOR
H-OSC
+PLL
TO MPEG
CARD
(optional)
TO DVD
ENGINE
(optional)
3463
3465
3464
7463
7461
7465
7462
-12V
V-DRIVE -
N.C.
V-DRIVE +
3470
7466
7464
3474
3451
2455
HEADPHONEA7
L+
L-
R-
R+
L+
L-
R-
R+
F642
F643
5602
36423643
3605
3604
56035601
A3
A1
A5
FRONT CONTROLA7
E TOP
CONTROL
CONTROLA4 +3.3V
WP
36013602
+3V3
+3.3V
F691
57
1621
12MHz58
1
KEYBOARD
LOCAL
KEYBOARD
LOCAL
KEYBOARD
CHANNEL + / -
VOLUME + / -
CHANNEL + / -
VOLUME + / -
7200-B
TDA93XX
VST
PWM-
DAC
ROM
RAM
CPU
IIC
BUS
I/O
PORTS
11 7
3
2
5
8
6
5
54 61 56
IR 67
LED 11
8
7641
M24C04
EEPROM
(NVM)
SDA
SCL
Pvv_ADJ
7
63
64
ITV_POR
A4
6
ITV_CLOCK
A1
A4
1
Std_Con
A8STATUS 2
A8SEL_AV1_AV2
60
A4POR
(ITV)
A6
4
VOLUME
SDA
N.C.
N.C.
N.C.
SCLOR
9257
SDAM
1/10
PAGES
MEMORY
TELE
TEXT/CC
+
OSD
CVBS SYNC
ERR
9
ERR
6
6692
TSOP1836
+3V3
IR
LED
6691
OR
0239
1010
2
SPEAKER
2 X 5W 16 Ohm
2 X 3W 8 Ohm
2 X 1W 8 Ohm
CRTB1
1300
1
2
3
5
6
7
8
3305
3309
3301
F301
F302
F303
F309
F310
4
R
G
B
R
G
B CRT
(9P)
25kV
FOCUS
EHT
EHT
VG2
VG2
7
9
3
4 5 6 8
7313
7314
R
7317
7318
B
7315
7316
G
0165
AQUADAG
6318
3418
+160V
3313
+160 V
A8
A8
A8
A8
5201
IF, VIDEOA4
VIF_1
VIF_2
TUNER_AGC
(MONO)
+8V
+8VD
23
38
7202
3203
3205
7201
44
24
27
L1_IN
35
AUDIO CARRIER
FILTER
7200-A
TDA93XX
VIDEO
IF
AGC
VIDEO
PLL
DEMOD.
VIDEO
AMPLIFIER
SOUND
FM-DEMOD.
DE-EMPH.
AUDIO
SWITCH
SOUND
AMPL.
+ AVL
F603
A8CVBS_TER_OUT
AM_FM_MONO
40
1201
4.5MHz
C-IN
43
SY-CVBS-IN
42
7200-C
TDA93XX
I/O
SWITCHING
Y-DELAY
R-Y
B-Y
U
V
R
G
B
RED
GREEN
BLUE
51
52
53
49
Y
VIDEO
FILTERS
RGB
MATRIX
RGB
INSERT
BLACK
STRETCH
WHITE
STRETCH
RGB
CONTROL
OSD/TEXT/CC
INSERT
BLUE
STRETCH
WHITE-P.
ADJ
VIDEO
IDENT
1622
PAL/NTSC
DECODER
BASE
BAND
DELAY
3620
3619
3621
R_SC1_IN_V_IN
G_SC1_IN_Y_IN
B_SC1_IN_U_IN
FBL_SC1_IN
4746 48 45 50
F604
F605
1
2
3
4
5
6
7
8
OSD
A2BEAM-LIMIT
A2
FRAME_OUT
+160 V
A2
A2
FILAMENT
F003
1003
SDA
SCL
COMPAIR
CONNECTOR
5002
TV TUNER
3003
SDA
SCL
3004
6001
BZX79-C33
TUNER IFA3
A4
A4
A2
1000
UV1336
6, 7 9
1
2
1
+5V
VT_SUPPLY_AVT_SUPPLY
VT
AGC
5 4
IF
2
3
11
1001
ERR
10
9282
DVD EJECT
POWER (USA only)
22. 22L03.1L AA 6.Block Diagram, I2C, Supply Voltage, and Testpoint Overview
I2
C and Supply Voltage Overview
POWER SUPPLY 0212
43
2
1
2
8
12
10
13
3
6
2 5
6
1
3504
CL 36532044_032.eps
160603
F510
I505
I533
3543
5562
3544
6520
2528
A1
Degaussing
Coil
t
1515
5520
7580
7520
TEA1507
DRAIN
DRIVER
SENSE
DEMAG
VCC
CONTROL
IC
CTRL
Vcc
ENERGIZING
CIRCUIT
(optional)
AC
DC
65045500
9
1
2
4
3
2503 6562
6563
6561
MAIN SUPPLY
-12V
5563
5560 6560
F542
F540
I553
Vaux/Vaudio
2 x
1 x
DVD-SUPPLY
3549
Std_Con
HOT GROUND
COLD GROUND
7540, 6540
REFERENCE
CIRCUIT
7541
+3V3B
STANDBY
CIRCUIT
7515
TCET1103
3527
3525
3523
3526
752114
11
9
3522
7
D
S
G
I514
6520
3528
7523
3506
5570 6570
(OPTIONAL)
FRAME
LINE
3549
7451
EHT
PW_ADJ
DEFLECTIONA2
A1
F461
F422
F449
F448
H DRIVE
A4
F425
-12V
7421
BUT11APX
5461
3424
0221
1
2
HOR.
DEFL.
COIL
0222
1
2
VERT.
DEFL.
COIL
5441
1
7
2
FOCUS VG2
EHT
10
EHT
A4EHT 0
A4BEAM-
LIMIT
3447
9
6446
8
5
4
6463
3445
3446
VT_SUPPLY
6447
+160V
-12V
1x
2x
2x
2x
2x
3448
3459
6452
6451
F446
6444
3443
3444
FILAMENT
6422
2423
6408
6407
2406
5401 3402
3403
7423
7422
3425
6463
Vaux/Vaudio
FILAMENT
3463
3465
3464
7463
7461
7465
7462
-12V
3470
7466
7464
3474
3451
2455
TUNER IFA3
FOCUS
EHT
VG2
CONTROLA7 TUNER IFA3
3605
7641
M24C04
EEPROM
(NVM)
3604
3643
3642
65
3
2
11 WP 7
ERR
9
7200-B
SET
PROCESSOR
PART OF
VIDEO-
PROCESSOR
TDA9370
ERR
6
SDA
SCL
SCL
SDA
3602
+3.3V
3644
+3.3V
3601
+3.3V
1000
TUNER
UV1336
3003
3004
45
ERR
10
1
2
1003
3
AUDIO PROCESSING
(only for stereo sets)
A5
7821
AN5891K
AUDIO
PROC.
3828
3827
1314
ERR
4
7841
AN5829S
AUDIO
DECODER
3842
3843
4119
ERR
4
SCL
SDA
FOR
COMPAIR
ONLY
I2C BUS INTERCONNECTION DIAGRAM
ERROR CODE LIST
A4
A4
A2
+ 5 V
+ 5 V
+ 5 V
+ 8V
1300
7
8
9282
VT supply
VT supply
VT supply-A
VT Supply-A
CRTB1
VIDEO PROCESSINGB1A4
EHT
FOCUS
FILAMENT
160 V
VG2
AUDIO PROCESSINGA5
7 - 7841
5841
5821
23 - 7821
+ 5V
AUDIO AMPLIFIERA6
1 - 7901
or
1 - 7902
+ 5V
FILAMENT
FILAMENT
+ 3V3A
+ 3V3B
AUDIO FRONT I/OA7
+3V3B
4698
3693
3 - 6692
+ 8 V
REAR I/O CINCHA8
+8V
4163
+8VA
Vaux/Vaudio
Vaux/VaudioFILA-
MENT
160VD
FILAMENT
4379
3493
7
1622
8
7493
3494
3
A1
A2
In
1
3495
5482
4491
+3V3
+5V
+8V
1x
1x
1x
+8VD
+3V3A
6491
7494
6492
3496
3497
7496
7491
3492
3491
VTSupply-A
-12V,
FILAMENT,
Vaux/Vaudio
VT supply-A,
VT supply,
FILAMENT
A4
V DRIVE-
V DRIVE-
1x
1x
2x
Error Device Error description Check item Diagram
0 Not applicable No Error - -
1 Not applicable X-Ray Protection (USA) - -
2 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection 7461, 7462, 7463, 7464,
7465, 7466
A2
4 AN5891K &
AN5829S
Tone control & Audio
processor I2C identification
error
7821 (tone IC), 7841
(Stereo/Sap)
A5
5 TDA93XX POR 3.3V / 8V Protection 7200, 7541, 7491, 7493,
7496
A4, A1
6 I2C bus General I2C bus error 7200, 3604, 3605 A4
7 Not applicable - - -
8 Not applicable E/W Protection (Large Screen) - -
9 M24C16 NVM I2C identification error 7641, 3641, 3642, 3643 A4
10 Tuner Tuner I2C identification error 1000, 3003, 3004 A3
11 Not applicable Black current loop protection 3313, 7307, 7308, 7309,
7310, 7311, 7312, 7313,
7314, 7315, 7316, 7317,
7318, CRT
B1
12 Not applicable MAP I2C identification error
(USA)
- -
13 Not applicable VC I2C identification error (Eu) - -
14 Not applicable DVD I2C identification error - -
0211
0231 (NOT USA)
MAINS
SWITCH
1500
T4E
F567
F568
F566
DVD POWER SUPPLY
(optional)
A9
1
3
5
1572
1
4
1571
7570
SI2306D
7571
L4978
3 2
1
3571VTsupply-A
DVD_SUPPLY 5571 5572
5575
5574
5573
Vcc
4
1
CONTROL
OUT
5
6571
+12V-DVD
+8V-DVD
+8V-DVD TO MPEG
CARD
(optional)
TO DVD
ENGINE
(optional)
Vaux/Vaudio
23. Block Diagram, I2C, Supply Voltage, and Testpoint Overview 23L03.1L AA 6.
Testpoint Overview
CL 36532044_031.eps
200603
Mains
Switch
COLD
IRRCR
HOT LIVE PART
Supply
Control
Supply
Output
Line
Output
Power Trafo 5520
7
7 6 5 3
7421
6447
5441
LOT
6570
6560
0246
39033905
7496
3643
In
Out
7901
7902
6562 2405
6446
7464
7465
7463
0222
6444
74617462
D
C
B E
SG
2
1 10
9
8
5
B
E
C
B
B EE
C
C
4
3
2
6
7
1
8
1
B
C
E
112
2413
2 1
5
12
1
14
5 8
32
3364 44
18
9 10 12 13
12
8 14
COLDHOT
F407
F510
I847
I848
I462
F481
F643
I553
I542
F603
F604
F605
I540
I533I505
F425
I514
I836
I830
F449
F448
F446
I461
I465
7520
+ F422
F461
1
6692
F691
F907
F908
F909
F906
F903 F901
C
B
F
1
11 1
1 3
Audio
Output
Video Processor
Tuner
Compair conn.
NVM
Audio
Processor
Audio
Demodulator
Frame Output
7841
3488
1622
7200 1000
1003
2413
112
15
7821
F491
F494
F492
F493
F494
I211
F642
F003
3
45
6
7
8
8
9 10
11
12
1302
1300 CRT
Socket
F310 B
F308 R
F309 G
F301
F302
F303
23 1
CRT TRACK SIDE VIEWMONO CARRIER TRACK SIDE VIEW
F003
200mV / div AC
20µs / div.
F308
50V / div DC
20µs / div.
F309
50V / div DC
20µs / div.
F310
50V / div DC
20µs / div.
F407
100V / div DC
20µs/div.
7641
7493
6491
7494
F425
5V / div AC
20µs / div.
F446
2V / div DC
20µs / div.
F448
10V / div DC
20µs / div.
F449
50V / div DC
20µs / div.
F461
20V / div DC
5ms / div.
F481
0,5V / div DC
20µs / div.
F491
2V / div DC
20µs / div.
F492
2V / div DC
20µms / div.
F493
2V / div DC
20µs / div.
F494
2V / div DC
20µs / div.
F510
50V / div DC
5µs / div.
F603
1V / div DC
20µs / div.
F604
1V / div DC
20µs / div.
F605
1V / div DC
20µs / div.
F301
1V / div DC
20µs / div.
F302
1V / div DC
20µs / div.
F303
1V / div DC
20µs / div.
F642
0.5V / div DC
20µs / div.
F643
0,5V / div DC
20µs / div.
F691
1V / div AC
2ms / div.
F901
0.5V / div AC
1ms / div.
0.5V / div AC
1ms / div.
F903
F905
0,5V / div AC
1ms / div.
F906
0,5V / div AC
1ms / div.
F907
0.5V / div AC
1ms / div.
F908
0.5V / div AC
1ms / div.
I211
1V / div DC
1ms / div.
I461
0.5V / div DC
5ms / div.
I462
0.5V / div DC
5ms / div.
I465
1V / div AC
5ms / div.
I533
2V / div DC
5µs / div.
I830
1V / div DC
1ms / div.
I836
1V / div DC
1ms / div.
I847
0.5V / div DC
1ms / div.
I848
0.5V / div DC
1ms / div.
I514
100V / div DC
5µs / div.
F422 97V DC
F540 97V DC
F542 13V5 DC
I505 =17V8 DC
3642
A2 A1
K
21 22
E B
C
E B
C
24. 24L03.1L AA 7.Circuit Diagrams and PWB Layouts
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
V
START-UP
CURRENT SOURCE
VALLEY
START-UP
CURRENT SOURCE
CURRENT
SENSING
OUTPUT
DRIVER
OVER
POWER
LOGIC
CONTROL
CIRCUIT
MAXIMUM
ON-TIME
PROTECTION
VOLTAGE
CONTRLLED
OSCILLATOR
OVER
TEMPERATURE
PROTECTIOM
POWER-ON
RESET
SUPPLY
MANAGEMENT
FREQUENCY Demag
Driver
PROTECTION
CONTROL
INPUT
CONTROL
CIRCUIT
BURST
DETECTOR
Drain
Sense
Vcc
Gnd
Ctrl
t
+t
Rs
Rp
+t
G
A
B
C
D
E
F
G
0211 C1
0212 B1
0213 C5
0231 C2
1500 B2
1501 B3
1508 E7
1509 E7
1515 A7
1516 E7
1520 B7
1560 D7
2503
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11
A
B
1N4148
6521
C
D
E
F
I505
1570 C8
2452 F11
2453 F10
2500 C3
2501 B5
2502 B5
2503 B6
2504 B6
2505 B2
2507 B6
2515 C7
2520 G2
2521 E2
2522 D6
2523 E6
2524 E5
2525 F5
2526 E2
2527 F1
2528 G6
2540 F9
2541 G9
2542 G7
2543 F6
2560 D8
2561 D9
2562 D9
2564 D10
2570 C9
2571 C8
2580 B7
2584 C6
2585 E6
3452 F11
3453 F10
3454 F9
3456 F11
3500 C2
3501 D2
3502 C4
3503 B4
3504 B4
3505 C4
3506 D4
3507 D2
3508 B4
3509 C3
3510 D3
3519 F6
1508
DVD_Gnd
3520 G2
3521 F2
3522 E5
3523 E5
3524 E5
3525 E5
3526 E6
3527 D5
3528 F1
3541 F8
3542 E9
3543 E10
3544 F9
3545 G8
3546 F11
3547 F9
3548 F9
3549 E9
3550 E10
3580 A7
3581 F6
3582 D10
4560 D8
5500 B4
5501 C4
5502 D4
5506 C7
5509 G4
5515 E5
5520 C7
5521 D6
5560 D8
5562 C9
5563 C10
5570 C7
6500 B5
6501 B5
6502 B5
6503 B5
6504 B5
6505 D2
6520 E2
6521 E6
6522 F6
6540 F8
6541 E9
6560 D8
6561 D9
2n2
2501
6562 C9
6563 C9
6570 C8
6580 A8
2585
1n
7451 F10
7515 F7
7520 D2
7521 E6
7522 F6
7523 F1
7540 F9
7541 G8
7580 A7
9500 B2
9501 C2
9502 C4
1570
9503 A6
9506 C7
9509 G4
9515 E5
9520 D6
9560 D7
3526
1n0
2543
400V
5521
1K0
3548
15K
2K2
3527
16V
150u
2504
3
6
7
8
9
4560
3541
470R
PDTC114ET
7541
4n7
2453
11
12
132
3
5
6
7 8
9
330K
3522
1 4
2
5501
9509
3542
1K5
2542
470n
2520
47K
3456
3543
5560
0212
1
2
6K8
3544
6561
6560
SB340
5570
2
0211
1
3506
2580
47u
9501
BC857B
7451
10
11
142
7520
3503
1
2
S
56p
7521
*
90 - 276 V FULL RANGE
6561
3V3
100u/400V
STP7NK80ZFP
- -
5520
-
-
1W/0R151W/0R18
9500
6V2
(..V..) Standy Mode
0V
*
*
0V
*
*
2V9
*
*
220V AC 309V (317V)
*
MAINS
0V
22V60V
*
1n5
T2.5AE 250V
*
MAINS SWITCH
A4
D
*
820K
T4E.250V
82n
TEA1506T
SS28010-06
BZX79-C9V1
3V3
G
RES
RES
17V8
RES
JUMP
*
-
-
22K330K330K330K330K3547
21RF
3M3
*
RES
HOT GROUND
LATAM
*
3V3
*
9V3
*
-
For ITV
2503
0231
Size
8V3
3523
*
*
For Relay Cct.
302V
6K8
9501
330K
-
POWER SUPPLY
NAFTALATAMITEM
STP7NK80ZFP
A2
STP5NK80ZFP
"$"
STP5NK90ZFP
S359B4-09SS28010-06
1W/0R15
BYW76-RAS15/10
6V8
10R-PTC
RES
15RF/20"/21"Mexico14"MEXICO15RF/20"/21"
JUMPJUMP
2V6
14"
NFR25 68R
150u/400V
SWITCH
100u/400V
Region
*
SWITCH
3526
*
S359B4-09
-
(13V8)
BYW76-RAS15/10
1V3
JUMP
150u/400V
NFR25 68R
FOR ITV ONLY
NFR25 47RNFR25 47R
JUMP
COLD GROUND
330K
1W/0R18
FOR MAINS 120V AC 170V (177V)
-
..V.. Normal Operation in " SERVICE MODE " A4
RES
*
7V7
T1.8AE 250V
4V9
150 - 276 V SINGLE RANGE
2V6
RES
1515
G5P
23
14
2502
2n2
4V6
HOT
303V
302V
ONLY
COLD
2505
3503
3504
5500
9503
5502
Relay Cct.
YES
NO
YES
DMF2820
YES
NO
NO
NO
YES
NO
C914
NO
YES
YES
RES
RES
RES
DEGAUSSING COIL
3M3
"$"
*
*
5509
RES
RES
-
-
-
-
-
-
-
7523
BC857B
BC547B
7540
3510
DSP
50V22u
2528
3521
F510
7521
1N5062 (COL)
6503
7580
BC847B
220p
2584
2505
2n2
2n2
2560
9520
6562
BYW76
1N5062 (COL)
6501
F540
1N5062 (COL)
6502
6500
1N5062 (COL)
1
2
3
2525
3504
470p
3582
1n0
2526
3581
1K0
3453
100K
10n
2541
3520
1K2
2527
6580
1M5
3508
1N4148
27u
5563
BZX384-C22
6505
3507 33K
3500
BYW29EX
6563
3580
47K
2515
2500
470n
22u
2521
BYD33D
6522
15n
2540
5506
7522
PDTC143ZT
9506
2523
1n8
220R
3549
2507
2522
470p
PFC5000
1501
9560
47u
15209500
2564
I553
2n2
2562
I533
3547
3m3
2570
100n
2524
3502
3528
10K
1560
6541
3519
10K
3454
3K3
TCET1103(G)
7515
14
3 2
C914
5502
31
46
3452
3505
5520
1
10
5562
3545
2K2
2452
6520
BYD33D
9503
4
2 3
BZX79-B6V8
6540
5500
DMF-2820
1
9515
3
DVD_Gnd
5515
0213
1516
10n
2571
3509
220R
16V2m2
2561
1500
PFC5000
82K
1509
STPS10L60D
65701
2
56
3
4
3523
ESB92
0231
10n
3501
9502
35253524
47K
3550
10K
3546
I514
F542
6504
GBU8K
PW_ADJ
DVD_Supply
(OPTIONAL)
Vaux/Vaudio
ITV_Vbatt
EHT
L_GND
-12V
Std_Con
MainSupply
+3V3B
AudioSupplyGnd_A
3139 123 5596.1 CL 36532044_001.eps
200603
F540 97V DC
F542 13V5 DC
I505 17V8 DC
F510
50V / div DC
5µs / div
I533
2V / div DC
5µs / div
I514
100V / div DC
5µs / div