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.
Top Control Panel (PV0)(E) 5960
Top Control Panel (PV2)(E) 6161
Front Interface Panel (FL13)(J) 6263
Front Interface Panel (PV0-2)(J) 6264
HDMI Link Receiver(M1) 6567
HDMI + DMP(M2) 6667
Trident Panel: SVP(T1) 6873
Trident Panel: Source Select & uP(T2) 6973
Trident Panel: ADC(T3) 7073
Trident Panel: SDRAM(T4) 7173
Trident Panel: Deflection Controller(T5) 7273
8. Alignments75
9. Circuit Descriptions, List of Abbreviations, and IC
Data Sheets82
Abbreviation List84
IC Data Sheets85
10. Spare Parts List86
11. Revision List86
Published by BB 0570 TV ServicePrinted in the NetherlandsSubject to modificationEN 3122 785 15210
Page 2
EN 2L05L AA1.
Technical Specifications, Connections, and Chassis Overview
1.Technical Specifications, Connections, and Chassis Overview
Index of this chapter:
1.1 Technical Specifications
1.2 Connections
1.3 Chassis Overview
Notes:
•Described specifications are valid for the whole product
range.
•Figures below can deviate slightly from the actual situation,
due to different set executions.
1.1Technical Specifications
1.1.1Reception
Display type: CRT-DV-SF
Screen size: 29”; 4:3
: 34”; 4:3
: 28”; 16:9
: 32”; 16:9
Tuning system: PLL
Color systems: NTSC M (3.58 - 4.5)
: PAL M
: PAL N
Sound systems: BTSC
Channel selections: 181, full cable
IF picture carrier: 45.75 MHz
Aerial input: 75 ohm, F-type
A/V Connections: PAL B/G
1.1.2Miscellaneous
Audio output:: 2 x 10 W
Power supply:
- Mains voltage range: 100 - 250 V
- Mains frequency: 50 / 60 Hz
Ambient conditions:
- Temperature range: +5 to +45 °C
- Maximum humidity: 90% R.H.
Power consumption:
- Normal operation: from 119 W
: to 133 W
- Standby: < 1 W
AC
1.2Connections
Note: The following connector color abbreviations are used
Figure 1-1 Top control and Front / Side connections
Hosiden: S-Video In
1-GND Ground H
2-GND Ground H
3-Y 1 V
4-C 0.3 V
Audio / Video In
Ye - Video (CVBS) 1 V
Wh - Audio - L 0.2 V
Rd - Audio - R 0.2 V
Bk - Headphone 8 - 600 Ohm / 4 mW ot
LED
TOP CONTROL
MENU CH
SIDE I/O
R AUDIO L
VIDEO
/ 75 ohm j
PP
PP
/ 75 ohm jq
PP
RMS
RMS
F_15050_005.eps
/ 75 ohm j
/ 10 kohm jq
/ 10 kohm jq
110205
1.2.2Rear Connections
75 Ohm
ComPair
VIDEO
L/Mono
AUDI O
MONITOR
OUT
R
Figure 1-2 Rear connections
1
182
19
HDMI
AV1
IN
Y
Pb
Pr
COMPONENT VIDEO INPUT
V
L
R
AV2
IN
V
L
R
S-VIDEO
F_15050_006.eps
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Page 3
Technical Specifications, Connections, and Chassis Overview
EN 3L05L AA1.
Aerial In
- F-type Coax, 75 ohm D
Monitor Out
Ye - Video (CVBS) 1 V
Wh - Audio - L 0.5 V
Rd - Audio - R 0.5 V
YUV In
Bu - U 0.7 V
Rd - V 0.7 V
Gn - Y 0.7 V
1.3Chassis Overview
B1
CRT
ECO
B2
SCAVEM
ROT &
B3
SCAVEM (Only when Multi Board is used)
SIDE AV PANEL +
D
HEADPHONE
HDMI
M
PA NE L
TRIDENT
T
PA NE L
CRT PANEL
/ 75 ohm kq
PP
/ 1 kohm kq
RMS
/ 1 kohm kq
RMS
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
FAM ILY,
OR
MULTI BOARD
AV1 In
Ye - Video (CVBS) 1 V
Wh - Audio - L 0.5 V
Rd - Audio - R 0.5 V
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
AV2 In
Ye - Video (CVBS) 1 V
Wh - Audio - L 0.5 V
Rd - Audio - R 0.5 V
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
AV2 In (S-Video)
1-Ground GND H
MONO
CARRIER
TOP CONTROL PANEL
FRONT INTERFACE PANEL
POWER SUPPLY
LINE DEFLECTION
TUNER IF
UOCIII (a.k.a. ’HERCULES’)
FEATURES & CONNECTIVITIES
CLASS D AUDIO AMPLIFIER
AUDIO AMPLIFIER
REAR I/O CINCH
FRONT CONTROL
DVD POWER SUPPLY
F_15210_036.eps
E
J
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
241005
Figure 1-3 PWB location
Page 4
EN 4L05L AA2.
Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
Index of this chapter:
2.1 Safety Instructions
2.2 Maintenance Instructions
2.3 Warnings
2.4 Notes
2.1Safety Instructions
Safety regulations require the following 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.
•Wear safety goggles when you replace the CRT.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•General repair instruction: as a strict precaution, we advise
you to re-solder the solder connections through which the
horizontal deflection current flows. In particular this is valid
for the:
1. Pins of the line output transformer (LOT).
2. Fly-back capacitor(s).
3. S-correction capacitor(s).
4. Line output transistor.
5. Pins of the connector with wires to the deflection coil.
6. Other components through which the deflection current
flows.
Note: This re-soldering 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 Mains/AC Power lead for
external damage.
•Check the strain relief of the Mains/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 Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the "on" position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 Mohm and 12 Mohm.
4. Switch "off" the set, and remove the wire between the
two pins of the Mains/AC Power plug.
•Check the cabinet for defects, to prevent touching of any
inner parts by the customer.
2.2Maintenance Instructions
We recommend a maintenance inspection carried out by
qualified service personnel. The interval depends on the usage
conditions:
•When a customer uses the set under normal
circumstances, for example in a living room, the
recommended interval is three to five years.
•When a customer uses the set 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.
2.3Warnings
•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 figure “Discharge
picture tube”, to discharge the picture tube. Use a high
voltage probe and a multi-meter (position V
until the meter reading is 0 V (after approx. 30 s).
V
Figure 2-1 Discharge picture tube
•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 prevents circuits
from becoming unstable.
2.4Notes
2.4.1General
•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.
). Discharge
DC
E_06532_007.eps
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Page 5
Safety Instructions, Warnings, and Notes
EN 5L05L AA2.
2.4.2Schematic 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 Spare Parts
List. Therefore, always check this list when there is any
doubt.
2.4.3Rework on BGA (Ball Grid Array) ICs
General
Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF)BGA has to be
discarded.
Device Removal
As is the case with any component that is being removed, it is
essential when removing an (LF)BGA, that the board, tracks,
solder lands, or surrounding components are not damaged. To
remove an (LF)BGA, the board must be uniformly heated to a
temperature close to the reflow soldering temperature. A
uniform temperature reduces the risk of warping the PWB.
To do this, we recommend that the board is heated until it is
certain that all the joints are molten. Then carefully pull the
component off the board with a vacuum nozzle. For the
appropriate temperature profiles, see the IC data sheet.
Area Preparation
When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has been shown to
result in problems during re-soldering.
Device Replacement
The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be
aligned under a microscope or magnifying glass. If this is not
possible, try to align the (LF)BGA with any board markers.
So as not to damage neighbouring components, it may be
necessary to reduce some temperatures and times.
More Information
For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “Magazine”,
then go to “Workshop Information”. Here you will find
Information on how to deal with BGA-ICs.
2.4.4Lead-free Solder
Philips CE is producing lead-free sets (PBF) from 1.1.2005
onwards.
-9
), or pico-farads (p= x10
-12
Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 5 and 6 refer to the production year, digits
7 and 8 refer to production week (in example below it is 1991
week 18).
-6
),
).
E_06532_024.eps
230205
Figure 2-2 Serial number example
Regardless of the special lead-free logo (which is not always
indicated), one must treat all sets from this date onwards
according to the rules as described below.
P
b
Figure 2-3 Lead-free logo
Due to lead-free technology some rules have to be respected
by the workshop during a repair:
•Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required,
please contact the manufacturer of your soldering
equipment. In general, use of solder paste within
workshops should be avoided because paste is not easy to
store and to handle.
•Use only adequate solder tools applicable for lead-free
soldering tin. The solder tool must be able:
– To reach a solder-tip temperature of at least 400°C.
– To stabilise the adjusted temperature at the solder-tip.
– To exchange solder-tips for different applications.
•Adjust your solder tool so that a temperature of around
360°C - 380°C is reached and stabilised at the solder joint.
Heating time of the solder-joint should not exceed ~ 4 sec.
Avoid temperatures above 400°C, otherwise wear-out of
tips will increase drastically and flux-fluid will be destroyed.
To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.
•Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully
clean the solder-joint from old tin and re-solder with new
tin.
•Use only original spare-parts listed in the Service-Manuals.
Not listed standard material (commodities) has to be
purchased at external companies.
•Special information for lead-free BGA ICs: these ICs will be
delivered in so-called "dry-packaging" to protect the IC
against moisture. This packaging may only be opened
shortly before it is used (soldered). Otherwise the body of
the IC gets "wet" inside and during the heating time the
structure of the IC will be destroyed due to high (steam-)
pressure inside the body. If the packaging was opened
before usage, the IC has to be heated up for some hours
(around 90°C) for drying (think of ESD-protection!).
Do not re-use BGAs at all!
•For sets produced before 1.1.2005, containing leaded
soldering tin and components, all needed spare parts will
be available till the end of the service period. For the repair
of such sets nothing changes.
Page 6
EN 6L05L AA3.
Directions for Use
In case of doubt whether the board is lead-free or not (or with
mixed technologies), you can use the following method:
•Always use the highest temperature to solder, when using
SAC305 (see also instructions below).
•De-solder thoroughly (clean solder joints to avoid mix of
two alloys).
Caution: For BGA-ICs, you must use the correct temperatureprofile, which is coupled to the 12NC. For an overview of these
profiles, visit the website www.atyourservice.ce.philips.com
(needs subscription, but is not available for all regions)
You will find this and more technical information within the
"Magazine", chapter "Workshop information".
3.Directions for Use
You can download this information from the following websites:
For additional questions please contact your local repair help
desk.
2.4.5Practical 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.
Page 7
4.Mechanical Instructions
Index of this chapter:
4.1 Set Disassembly
4.2 Service Position
4.3 Assy/Panel Removal
4.4 Set Re-assembly
Note: Figures below can deviate slightly from the actual
situation, due to different set executions.
Mechanical Instructions
EN 7L05L AA4.
4.1Set Disassembly
Warning: Be sure to disconnect the AC power from the set
before opening it.
4.1.1Rear Cover
1. Remove all screws. If you do not remove them, you cannot
access the clips.
2. Tilt the set a little forward, so that you can release the two
clickfit clamps that are located at the bottom plate of the
set.
3. Four openings (1) can be found at the top. The openings
are very small (2).
Note: Some sets only have the two inner openings.
4. Underneath every opening there is a clip. Push this clip
down with a very thin piece of metal (3), until you hear a
click.
Caution: do not use a screwdriver, this will damage the
cabinet.
5. When all four clips are pushed down, the back cover can
be removed.
Figure 4-2 Opening
2
E_13950_012 .eps
3
050404
1
Figure 4-1 Rear cover (for FL13 styling)
E_13950_011 .eps
050404
Figure 4-3 Pushing clips down
4.2Service Position
Before placing the Mono Carrier in its service position, remove
the Front Interface assy/panel (see paragraph “Front Interface
Assy/Panel”) and the Side AV assy/panel (see paragraph “Side
AV Assy/Panel”).
E_13950_013.eps
050404
Page 8
EN 8L05L AA4.
Mechanical Instructions
4.3Assy/Panel Removal
4.3.1Front Interface Assy/Panel
1
1
1
2
F_15050_008.eps
110205
2
1
Figure 4-4 Mono Carrier
F_15050_010.eps
110205
Figure 4-6 Front interface assy/panel removal
1. Remove the two fixation screws.
2. Remove the complete module from the bottom plate, by
pulling the two fixation clamps upward [1], while sliding the
module away from the CRT [2].
3. Release the two fixation clamps at the side of the bracket,
and lift the panel out of the bracket (it hinges at one side).
4.3.2Side AV Assy/Panel
1. Remove the fixation screw, and remove the complete Side
AV assembly.
3
2. Release the two fixation clamps, and lift the panel out of the
bracket.
F_15050_009.eps
110205
Figure 4-5 Service position Mono Carrier
1. Disconnect the degaussing coil.
2. Release the two fixation clamps [1] (at the mid left and mid
right side of the bracket), and remove the bracket from the
bottom tray, by pulling it backwards [2].
3. Move the panel bracket somewhat to the left and flip it 90
degrees [3], with the components towards the CRT.
4. Turn the panel bracket with the rear I/O toward the CRT.
4.3.3HDMI Interface Panel
To remove the HDMI Interface panel from the Mono Carrier,
unscrew the fixation screw at the back of the assy.
4.3.4Trident Panel
1. Remove all cables.
2. Pull the panel upwards out of the connectors.
4.3.5Top Control Assy/Panel
4
22
3
3
1
Figure 4-7 Top Control assy/panel removal
1. Remove the two fixation screws at the bottom [1] and the
two fixation screws at the front of the assy [2].
2. Release the two fixation clamps [3] to lift out the assy.
3. Release the two fixation clamps [4] to lift the panel out of
the assy.
4
1
F_15050_012.eps
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Page 9
4.4Set Re-assembly
To re-assemble the whole set, do all processes in reverse
order.
Note: before you mount the rear cover, perform the following
checks:
•Check whether the AC power cord is mounted correctly in
its guiding brackets.
•Check whether all cables are replaced in their original
position
Mechanical Instructions
EN 9L05L AA4.
Page 10
EN 10L05L 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 Modes
5.3 Problems and Solving Tips Related to CSM
5.4 ComPair
5.5 Error Codes
5.6 The Blinking LED Procedure
5.7 Protections
5.8 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 a rectangle box
around Fxxx or Ixxx. These test points are specifically
mentioned in the “Test Point Overview” as “half moons” with a
dot in the center.
Perform measurements under the following conditions:
•Television set in Service Default Alignment Mode.
•Video input: Color bar signal.
•Audio input: 3 kHz left channel, 1 kHz right channel.
Power supply A1
Line & Frame
Deflection
Connectivities
•All service-unfriendly modes (if present) are disabled. The
service unfriendly modes are:
– Timer / Sleep timer.
– Child / parental lock.
– Blue mute.
– Hotel / hospital mode.
– Auto shut off (when no “IDENT” video signal is
received for 15 minutes).
– Skipping of non-favorite presets / channels.
– Auto-storage of personal presets.
– Auto user menu time-out.
– Auto Volume Leveling (AVL).
How to Enter
To enter SDM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
(do not allow the display to time out between entries while
keying the sequence).
•Short the jumper wire 9252 with a cold ground on the family
board (for example the tuner casing) and apply AC power.
Then press the power button (remove the short after startup).
Caution: Entering SDM by shorting wire 9252 with ground
will override the +8V-protection. Do this only for a short
A2
period. When doing this, the service-technician must know
exactly what he is doing, as it could damage the television
set.
•Or via ComPair.
A5
After entering SDM, the following screen is visible, with SDM in
the upper right corner of the screen to indicate that the
television is in Service Default Mode.
Service Default mode (SDM) and Service Alignment Mode
(SAM) offers several features for the service technician, while
the Customer Service Mode (CSM) is used for communication
between the call center and the customer.
This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the abilities of structured troubleshooting, error code
reading, and software version readout for all chassis.
Minimum requirements for ComPair: a Pentium processor, a
Windows OS, and a CD-ROM drive (see also paragraph
"ComPair").
5.2.1Service Default Mode (SDM)
Purpose
•To create a predefined setting for measurements to be
made.
•To override software protections.
•To start the blinking LED procedure.
Specifications
•Tuning frequency: 61.25 MHz (channel 3).
•Color system: PAL M.
•All picture settings at 50% (brightness, color contrast, hue).
•Bass, treble and balance at 50 %; volume at 25 %.
Figure 5-1 SDM menu
F_15050_013.eps
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Page 11
Service Modes, Error Codes, and Fault Finding
EN 11L05L AA5.
How to Navigate
Use one of the following methods:
•When you press the MENU button on the remote control,
the set will switch on the normal user menu in the SDM
mode.
•On the TV, press and hold the VOLUME DOWN and press
the CHANNEL DOWN for a few seconds, to switch from
SDM to SAM and reverse.
How to Exit
Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter or the television set.
If you turn the television set off by removing the AC power (i.e.,
unplugging the television) without using the POWER button,
the television set will remain in SDM when AC power is reapplied, and the error buffer is not cleared.
5.2.2Service Alignment Mode (SAM)
Purpose
•To change option settings.
•To display / clear the error code buffer.
•To perform alignments.
Specifications
•Operation hours counter (maximum five digits displayed).
•Software version, Error codes, and Option settings display.
•Error buffer clearing.
•Option settings.
•AKB switching.
•Software alignments (Tuner, White Tone, Geometry &
Audio).
•NVM Editor.
•ComPair Mode switching.
How to Enter
To enter SAM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596" directly followed by the OSD/
STATUS button (do not allow the display to time out
between entries while keying the sequence).
•Or via ComPair.
After entering SAM, the following screen is visible, with SAM in
the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.
00028 L05US1 1.1 PUS1 0.7 SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. AKB On
. Tuner
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on
Figure 5-2 SAM menu
F_15050_014.eps
110205
Menu Explanation
1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count standby hours.
2. AAABCD-x.y. This is the software identification of the
main microprocessor:
– A= the project name (= L05).
– B= the region: E= Europe, A= Asia Pacific, U= NAFTA,
•LATAM and NAFTA: N= Stereo non-dBx, S=
Stereo dBx.
•Asian Pacific: T= TXT, N= non-TXT, C= NTSC.
•ALL regions: M= mono, D= DVD, Q= Mk2.
– D= the language cluster number.
– x= the main software version number (updated with a
major change that is incompatible with previous
versions).
– y= the sub software version number (updated with a
minor change that is compatible with previous
versions).
3. EFFG-x.y. This is the software identification of the Trident
microprocessor.
– P= indication of the Trident processor.
– FF= the region: US=Nafta.
– G= the language cluster number.
– x= the main software version number (updated with a
major change that is incompatible with previous
versions).
– y= the sub software version number (updated with a
minor change that is compatible with previous
versions).
4. SAM. Indication of the Service Alignment Mode.
5. Error Buffer. Shows all errors detected since the last time
the buffer was erased. Five errors possible.
6. Option Bytes. Used to set the option bytes. See “Options”
in the Alignments section for a detailed description. Seven
codes are possible.
7. Clear. Erases the contents of the error buffer. Select the
CLEAR menu item and press the MENU RIGHT key. The
content of the error buffer is cleared.
8. Options. Used to set the option bits. See “Options” in the
Alignments section for a detailed description.
9. AKB. Used to disable (Off) or enable (On) the “black
current loop” (AKB= Auto Kine Bias).
10. Tuner. Used to align the tuner. See “Tuner” in the
Alignments section for a detailed description.
11. White Tone. Used to align the white tone. See “White
Tone” in the Alignments section for a detailed description.
12. Geometry. Used to align the geometry settings of the
television. See “Geometry” in the Alignments section for a
detailed description.
13. Audio. No audio alignment is necessary for this television
set.
14. NVM Editor. Can be used to change the NVM data in the
television set. See table “NVM data” further on.
15. ComPair. Can be used to switch on the television to In
System Programming (ISP) mode, for software uploading
via ComPair. Caution: When this mode is selected without
ComPair connected, the TV will be blocked. Remove the
AC power to reset the TV.
How to Navigate
•In SAM, select menu items with the MENU UP/DOWN keys
on the remote control transmitter. The selected item will be
highlighted. When not all menu items fit on the screen, use
the MENU UP/DOWN keys to display the next / previous
menu items.
•With the MENU LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected submenu.
•In SAM, when you press the MENU button twice, the set
will switch to the normal user menus (with the SAM mode
Page 12
EN 12L05L AA5.
Service Modes, Error Codes, and Fault Finding
still active in the background). To return to the SAM menu
press the MENU or STATUS/EXIT button.
•When you press the MENU key in while in a submenu, you
will return to the previous menu.
How to Store SAM Settings
To store the settings changed in SAM mode, leave the top level
SAM menu by using the POWER button on the remote control
transmitter or the television set.
How to Exit
Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter or the television set.
If you turn the television set “off” by removing the AC power
(i.e., unplugging the television) without using the POWER
button, the television set will remain in SAM when AC power is
re-applied, and the error buffer is not cleared.
5.2.3Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the TV’s operation settings. The call center can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps the call center to
diagnose problems and failures in the TV set before making a
service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.
How to Enter
To enter CSM, press the following key sequence on the remote
control transmitter: “123654” (do not allow the display to time
out between entries while keying the sequence).
Upon entering the Customer Service Mode, the following
screen will appear:
1 00028 L05US1 1.1 PUS1 0.7 CSM
2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000
4 nnXXnnnn/nnX
5 P3C-1
6 NOT TUNED
7 NTSC
8 STEREO
9 CO 50 CL 50 BR 50 HU 0
0 AVL Off BS 50
6. Indicates the television is receiving an "IDENT" signal on
the selected source. If no "IDENT" signal is detected, the
display will read "NOT TUNED"
7. Displays the detected Color system (e.g. PAL/NTSC).
8. Displays the detected Audio (e.g. stereo/mono).
9. Displays the picture setting information.
10. Displays the sound setting information.
How to Exit
To exit CSM, use one of the following methods:
•Press the MENU, STATUS/EXIT, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
5.3Problems and Solving Tips Related to CSM
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.
Picture too Dark or too Bright
If:
•The picture improves when you have press the AUTO
PICTURE button on the remote control transmitter, or
•The picture improves when you enter the Customer
Service Mode,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys (if necessary) to select
BRIGHTNESS.
6. Press the MENU LEFT/RIGHT keys to increase or
decrease the BRIGHTNESS value.
7. Use the MENU UP/DOWN keys to select PICTURE.
8. Press the MENU LEFT/RIGHT keys to increase or
decrease the PICTURE value.
9. Press the MENU button on the remote control transmitter
twice to exit the user menu.
10. The new PERSONAL preference values are automatically
stored.
White Line around Picture Elements and Text
F_15050_015.eps
140205
Figure 5-3 CSM menu
Menu Explanation
1. Indication of the decimal value of the operation hours
counter, Software identification of the main and Trident
microprocessor (see "Service Default or Alignment Mode"
for an explanation), and the service mode (CSM=
Customer Service Mode).
2. Displays the last five errors detected in the error code
buffer.
3. Displays the option bytes.
4. Displays the type number version of the set.
5. Reserved item for P3C call centers.
If:
The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys to select SHARPNESS.
6. Press the MENU LEFT key to decrease the SHARPNESS
value.
Page 13
Service Modes, Error Codes, and Fault Finding
EN 13L05L AA5.
7. Press the MENU button on the remote control transmitter
twice to exit the user menu.
8. The new PERSONAL preference value is automatically
stored.
Snowy Picture
Check CSM line 6. If this line reads “Not Tuned”, check the
following:
•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
If:
•The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys to select COLOR.
6. Press the MENU RIGHT key to increase the COLOR value.
7. Press the MENU button on the remote control transmitter
twice to exit the user menu.
8. The new PERSONAL preference value is automatically
stored.
Menu Text not Sharp Enough
If:
•The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys to select PICTURE.
6. Press the MENU LEFT key to decrease the PICTURE
value.
7. Press the MENU button on the remote control transmitter
twice to exit the user menu.
8. The new PERSONAL preference value is automatically
stored.
5.4ComPair
5.4.1Introduction
•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
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.
5.4.2Specifications
ComPair consists of a Windows based fault finding 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.
For this chassis, the ComPair interface box and the TV
communicate via a bi-directional service cable via the service
connector(s).
The ComPair fault finding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:
•Automatic (by communication with the television): ComPair
can automatically read out the contents of the entire error
buffer. Diagnosis is done on I2C/UART level. ComPair can
access the I2C/UART bus of the television. ComPair can
send and receive I2C/UART 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/UART buses 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 fault finding 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 I7
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 fault finding 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.
•Emulation of the (European) Dealer Service Tool (DST).
•If both ComPair and Force/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.
ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (service remote control),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:
Page 14
EN 14L05L AA5.
Service Modes, Error Codes, and Fault Finding
5.4.3How to Connect
This is described in the chassis fault finding database in
ComPair.
The error code buffer is cleared in the following cases:
•By using the CLEAR command in the SAM menu:
– To enter SAM, press the following key sequence on the
remote control transmitter: “062596” directly followed
by the OSD/STATUS button (do not allow the display
to time out between entries while keying the
sequence).
– Make sure the menu item CLEAR is highlighted. Use
the MENU UP/DOWN buttons, if necessary.
– Press the MENU RIGHT button to clear the error
buffer. The text on the right side of the “CLEAR” line will
change from “CLEAR?” to “CLEARED”
•If the contents of the error buffer have not changed for 50
hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the AC power from the
television set, the error buffer is not reset.
Note: If you encounter any problems, contact your local
support desk.
5.5Error Codes
The error code buffer contains all errors detected 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 displayed at the left side and all other errors shift one
position to the right.
5.5.1How to Read the Error Buffer
You can read the error buffer in 3 ways:
•On screen via the SAM (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 detected first and
error code 9 is the last detected (newest) error
•Via the blinking LED procedure (when you have no
picture). See “The Blinking LED Procedure”.
•Via ComPair.
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Service Modes, Error Codes, and Fault Finding
EN 15L05L AA5.
5.5.3Error Codes
In case of non-intermittent faults, write down the errors present
in the error buffer and clear the error buffer before you begin
the repair. This ensures that old error codes are no longer
present.
924C16I2C error while communicating with the EEPROM7601, 3604, 3605A5
10TunerI2C error while communicating with the PLL tuner1000, 5001A3
11TDA6107/ABlack current loop instability protection7330, 3351, CRTB1
12Not applicable---
13Not applicable---
14Not applicable---
15Not applicable---
16Not applicable---
17Not applicable---
18Not applicable---
19TDA1200xI2C error while communicating with sound decoder in UOCIII IC7200A4
20TDA1200xI2C error while communicating with video cosmic in UOCIII IC7200A4
21DPTVSVPI2C error while communicating with the 3D Processor7201, 3223, 3224T1
22TDA9332I2C error while communicating with the HOP7221, 3244, 3629, 7226, 7227T5
23SAA5565I2C error while communicating with the Painter uProcessor7206, 3254, 3256T2
24AD9883I2C error while communicating with the ADC7210, 3268, 3270T3
25Not applicableNo communication possible with Trident module-T
26SII9993I2C error while communicating with the HDMI receiver7002, 3016, 3019M1
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
and not the actual cause of the problem (for example, a fault in
the protection detection circuitry can also lead to a protection).
5.6The Blinking LED Procedure
Using 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 SDM is entered, the front LED will blink the contents
of the error-buffer:
•When all the error-codes are displayed, the sequence
finishes with a LED blink of 1.5 seconds,
•The sequence starts again.
Example of error buffer: 12 9 6 0 0
After entering SDM, the following occurs:
•1 long blink of 5 seconds to start the sequence,
•12 short blinks followed by a pause of 1.5 seconds,
•9 short blinks followed by a pause of 1.5 seconds,
•6 short blinks followed by a pause of 1.5 seconds,
•1 long blink of 1.5 seconds to finish the sequence,
•The sequence starts again at 12 short blinks.
5.7Protections
If a fault situation is detected, an error code will be generated;
and, if necessary, the television set will go into 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 protection mode. The error codes of the
error buffer and the blinking LED procedure can be read via the
Service Default Menu (SDM), or via ComPair.
To get a quick diagnosis the chassis has three service modes
implemented:
•The Customer Service Mode (CSM).
•The Service Default Mode (SDM).
•The Service Alignment Mode (SAM).
For a detailed mode description, see the relevant sections.
5.8Fault Finding and Repair Tips
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.
5.8.1NVM Editor
In some cases, it can be handy if one directly can change the
NVM contents. This can be done with the “NVM Editor” in SAM
mode. In the next table, the default NVM values are given.
Page 16
EN 16L05L AA5.
Table 5-3 NVM default values for LATAM-region
Service Modes, Error Codes, and Fault Finding
Default values (hex)
Item
EW (EW Width)19162A2A16162E2E2E2929
PW (EW Parabola Width)20092F2F09092828281616
HS (Horizontal Shift)212628282626262626262A
HP (Horizontal Parallelogram)2 207070707070707070707
Last Brightness (VID PP others)26430303030303030303030
Last Colour (VID PP others)26528282828282828282828
Last Contrast (VID PP others)26655555555555555555555
Last Sharpness (VID PP others)26705050505050505050505
Last Hue (VID PP others)26835353535353535353535
Last Colour Temperature (VID PP others)2691D1D1D1D1D1D1D1D1D1D
White-D Cool Red294FDFDFDFDFDFDFDFDFDFD
White-D Cool Green29500000000000000000000
White-D Cool Blue29605050505050505050505
White-D Normal Red29721212121212121212121
White-D Normal Green29817171717171717171717
White-D Normal Blue29917171717171717171717
White-D Warm Red30002020202020202020202
White-D Warm Green30100000000000000000000
White-D Warm Blue302FAFAFAFAFAFAFAFAFAFA
Last Smart Sound34200000000000000000000
Last Volume34314141414141414141414
Last Balance34432323232323232323232
Last Treble (AUD PP others)34532323232323232323232
Last Bass (AUD PP others)34632323232323232323232
Address (dec)
32PW8422/78
34PT8422/78
34PT8422/77
32PW8422/77
32PW8422/44
29PT8422/78
29PT8422/77
29PT8422/44
28PW8422/78
28PW8422/77
Page 17
Service Modes, Error Codes, and Fault Finding
EN 17L05L AA5.
5.8.2Power Supply
Set Not Working
Check Power
Supply Mains
Switch
Bridge Rectifier
circuit 6500
Ok
Check DC
voltage at
2505/2507
Ok
Check
fusible
resistor 3535
Not Ok
Check
3536
Not Ok
Check fusible
resistor 1500 &
circuit before it
Check IC7510 &
IC7531
Ok
Set able to
start-up
Ye s
End
No
Check other
fusible resistor
and capacitor in
the circuit
F_15050_004.eps
030205
5.8.3Deflection
One Thin Vertical Line
Quick check:
•Set in protection mode.
•LED blinking with error “3”.
One Thin Vertical Line
LED Blinking
Check all
connection and
peripheral at
Deflection Circuit in
place
Check
Line Transistor
7405
Is VBE between
200mV to 30mV & V
approximately 500mV
Yes
Check Horizontal
Deflection
Circuitry
CB
Figure 5-5 Fault finding tree “Set not working”
Set Does Not Start Up
Set Unable
to Start
Software
loaded?
Yes
Check
voltage
across 2552
No
Is Vbatt
approximately
140V
Yes
Check
voltage
7545
3V3
Yes
Check 8V
across 7543
Yes
Check 5V
across 7544
Fuse Blown?
Load
Software
No
Yes
Check Power
Supply circuit
No
Change
Fuse
Replace transistor
E_14480_059.eps
170204
Figure 5-7 Fault finding tree “One thin vertical line”
One Thin Horizontal Line
Quick check:
•Set in protection mode.
•LED blinking with error “2”.
One Horizontal
Thin Line
LED Blinking
Check all connection
and peripheral at
Deflection Circuit
in place
Check transistor
(7451, 7523, 7543) at
Vertical Deflection Circuitry
Replace transistor
Yes
Set able to
Start
Yes
End
No
No
Check Line
Transistor 7405
Trident
F_15050_003.eps
Figure 5-6 Fault finding tree “Set does not start up”
030205
Yes
Check Vertical
Deflection Circuit
E_14480_060.eps
170204
Figure 5-8 Fault finding tree “One thin horizontal line”
Page 18
EN 18L05L AA5.
Service Modes, Error Codes, and Fault Finding
Blank Screen
Blank Screen
Check Vg2
(fine tune)
Not Ok
Check Beam Current Limit
(voltage is 1.8V-2V when
brightness and contrast is
set to the maximum
Ok
Check heater voltage
(measure pin 9&10
at the CRT socket)
Check video supply
(2436) is approximately
180V
Ok
Not Ok
Picture
appears?
Picture not appearing
Check deflection
circuit
Picture not appearing
Not Ok
5.8.5Tuner and IF
No Picture
1. Check that the Option settings are correct.
2. If correct, check that supply voltages are there.
3. If supply voltages are present, check whether picture is
present in AV.
4. If picture is present in AV, check with the scope the Tuner
IF output signal by manual storage to a known channel.
5. If IF output is present, Tuner is working fine. If no IF output,
I2C data lines may be open, check continuity of I2C lines.
If I2C lines are ok, Tuner may be defect, replaced Tuner.
6. If Tuner IF is present and yet still no picture in RF mode, go
to Video Processing troubleshooting section.
No Picture, No Sound
Yes
Check tuning
supply voltage,
pin 9 of tuner
>30V & <35V
Check supply
voltage, pin 7 of
tuner
Check
Supply
V
No
T
Section
No Picture,
No Sound,
Raster Ok
Check AGC
Ok
Voltage, pin 1
of tuner
AGC voltage
changes with
different signal
strength
Ok
Picture
appears?
Ok
Figure 5-9 Fault finding tree “Blank screen”
5.8.4Source Selection
Set is not able to go into AV or any missing AV is
encountered
E.g. AV1 is available but not able to enter to AV1: Check if the
option setting is correct.
Set is able to go to AV, but no audio is heard.
1. Check that continuity of signal is there from the SCART/
Cinch input to the input of the UOCIII.
2. If continuity is there and still no audio, check that option
settings are correct.
3. If logic setting is correct and still no audio, proceed to Audio
Decoder/Processor troubleshooting section.
Set is able to go into AV but no video is available:
1. Check continuity from AV input to UOCIII depending on the
input.
2. If continuity is available and yet no video, proceed to Video
Processor troubleshooting section.
End
F_15050_001.eps
030205
No
Check AGC
circuit section
5V
Yes
Check Tuner
pin 4 & 5
I2C Bus
Ok
Yes
Replace Tuner
No
No
Check Power
Supply
Check other
functional area
E_14480_062.eps
Figure 5-10 Fault finding tree “No picture, no sound”
170204
Page 19
Service Modes, Error Codes, and Fault Finding
EN 19L05L AA5.
Picture Ok, No Sound
Picture Ok,
No Sound
Check IF output of
tuner, pin 11
CVBS
present?
Ye s
Check SAW filter output
(pin 4&5)
EU/AP/CH (QSS)- 1001
NA/LA/AP INT - 1002
Output Ok?
Ye s
Check other
functional area
No
No
Refer to fig.
"Power Supply:
Set not working"
Replace SAW
filter
E_14480_063.eps
170204
Figure 5-11 Fault finding tree “Picture ok, no sound”
Unable to Perform Tuning
Unable to
perform tuning
Enter SDM
check optionbyte 1
Correct
Check if tuner
Supply Voltage
pin 7
Incorrect
5V
Yes
Enter SDM and change
to the appropriate byte
Check Power
No
Supply
No
Check I2C
circuit
Replace
Tuner
5.8.6Controller
Below are some guidelines for troubleshooting of the Micro
Controller function. Normally Micro Controller should be
checked when there is a problem of startup.
1. Check that both +3.3 V
and +1.8 VDC are present.
DC
2. Check that crystal oscillator is working.
3. Check that Power Good signal is at “high” logic, normal
operation.
4. Check that UOCIII is not in standby mode. Pin 15 of UOCIII
should be 0 V
DC
.
5. Make sure H-drive pulse is there. This can be checked at
resistor R3239. If H-drive does not exist, remove resistor
R3239 to check if there is loading.
Note: When the set shuts down after a few second after power
“on”, the main cause is that Vg2 not aligned properly, try
adjusting Vg2 during the few seconds of power “on”.
5.8.7Video Processing
No Picture
When “no picture in RF”, first check if the microprocessor is
functioning ok in section “Controller”. If that is ok, follow the
next steps.
When “no picture in AV”, first check if the video source
selection is functioning ok in section “Source Selection”. If that
is ok, follow the next steps.
1. Check that normal operating conditions are met.
2. Check that there is video signal at pin 81. If no video,
demodulator part of the UOCIII is faulty, replace with new
UOCIII.
3. If video signal is available at pin 81, check pin 56, 57, and
58 for the RGB signal.
4. If signal is not available, try checking the BRIGHTNESS
and/or CONTRAST control, and make sure it is not at zero.
5. If still with the correct settings and no video is available,
proceed to the CRT/RGB amplifier diagram.
For sets with TDA9178, follow steps below:
1. Put Option Byte 2 bit 4 to “0”; if video signal is not available,
then check fault finding section “Controller”, Section
“Source Selection”, and steps above.
2. If video is available but not correct, put Option Byte 2 bit 4
to “1”, then check if LTI panel is present. If not, put LTI
panel in the main chassis (connector 1221).
3. If LTI panel is in main chassis, check cable between LTI
panel and main chassis (position is 1206). If it is
connected, then the LTI panel is faulty, replace it.
Check Tuner
Supply Voltage
Check I2C at pin
4 & 5 and tuner
Ok
Check other
functional area
Yes
Not Ok
33V
Not Ok
Not Ok
I2C
Not Ok
Tuner
E_14480_064.eps
Figure 5-12 Fault finding tree “Unable to perform tuning”
170204
Page 20
EN 20L05L AA5.
5.8.8Audio Processing
No Sound
Picture Ok,
No Sound
Tuner IF OkCheck Tuner/IFNot Ok
Ok
Service Modes, Error Codes, and Fault Finding
Check AUDOUTLSL &
AUDOUTLSR pin at
UOCIII
Ok
Check Audio
Amplifier
Not Ok
Not Ok
Check UOCIII IC
Check Audio
Power Supply
Ok
Check Audio
Amplifier Circuit
and loud speaker
Ok
Check NVM
Not Ok
Check Power
Supply
Replace Audio
Amplifier
E_14480_065.eps
201005
Figure 5-13 Fault finding tree “No sound”
No RF Audio for QSS/Inter-Carrier Stereo Sets.
1. Check pin 99 and 100 for SIF signal (for QSS) or pin 104
and 105 for video with SIF (for Inter-Carrier)
2. If signal is not present, check for the QSS/FMI bit settings.
Check also the NVM data.
3. If signals are present and still no audio, check the audio
supply voltage +8V are present.
4. If still no audio signal at UOCIII output, the UOCIII is faulty.
No AV Audio.
1. Check troubleshooting methods in section “Source
Selection”.
2. Check the output of the UOCIII to see if there is signal
available. If no, check the normal operating condition and
also the NVM data.
3. If still no audio signal at UOCIII output, the UOCIII is faulty.
Note: If there is audio signal at UOCIII output and no audio at
loudspeaker, proceed to Audio Amplifier troubleshooting
methods.
5.8.9Audio Amplifier
No RF as well as AV Audio at the Loudspeaker:
1. Check that the normal operation condition of the amplifier
is met.
2. If normal operation conditions are met, check the continuity
from UOCIII output to input of the amplifier.
3. If continuity is there and still no audio, check speaker wire
connections. If still no audio, amplifier IC might be faulty.
Page 21
Block Diagrams, Testpoint Overviews, and Waveforms
6.Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
TOP CONTROL PANEL
E
1010
3P
CRT PANEL
B
1361
3P
1352
1335
RIGHT
SPEAKER
RED
BLACK
(component view)
CRT
SOCKET
1351
1340
5P
5P
21L05L AA6.
DEGAUSSING COIL
BLUE
CRT
16:9
ROTATION
CRT PANEL
B
FRAME
COIL
GREY
ORANGE
BROWN
SCAVEM
COIL
EHT
CRT
BLACK
RED
LEFT
SPEAKER
1336
1381
AQUADAG
3P
CVBS (YELLOW)
LEFT (WHITE)
RIGHT (RED)
HEADPHONE
D
SIDE
A/V PANEL +
HEADPHONE
4P
1206
1228
7P
6P
1222
6P
1280
1220
1252
1278
1533
12P
1693
7P
1533
12P
7P
3P
5P
1280
4P
6P
1221
5P
1202
1251
10P
1250
1223
12P
4P
1207
7P
6P
1228
1682
1206
4P
3P
1251
1250
10P
12P
1504
1401
1451
2P
2P
A
5P
MONO
CARRIER
LOT
1211
1404
2P
2P
FRONT INTERFACE
J
Warning: Some models have tact switch.
MAINS
1505/0202
M
1223
4P
7P
HDMI PANEL
1220
7P
6P
1222
SWITCH
1211/0201
2P
1693
7P
6P
1221
MAINS
CORD
TRIDENT PANEL
T
1005
3P
ComPair
CONNECTOR
TUNER
F_15210_034.eps
251005
Page 22
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Supply and Deflection
SUPPLY AND DEFLECTION
SUPPLY
FRONT INTERFACE
J
1211
A1
1505
1
2
1231
MAINS
SWITCH
(not USA)
POWER SUPPLY
Degaussing
1506
MAINS
SWITCH
(not USA)
I511
6512
3519
7532
Coil
2511
6533
3530
I531
1500
T4E
2
6
3
6
11
1212
1
2
1504
5500 :
5502
7511
TEA1506T
DRAIN
Vcc
CONTROL
IC
CTRL
STANDBY
SUPPLY
7531
TEA1620
Vcc
CONTROL
IC
REG
SOURCE
AUX
DRIVER
SENSE
DEMAG
DRAIN
3507
t
6500
AC
I513
3513
14
3514
11
I519
3532
9
3517
7
3518
I533
14
2534
12
3538
6532
3534
3531
F508
2505
DC
MAIN
SUPPLY
3516
I516
D
S
7514
7512
G
6511
1503
43
1
2
5520
4
3
5531
17
18
13
14
10
11
1
7515
TCET1103
2
10
9
8
6
9
8
4
5
3
2
35321532
1A
4
5
1
2
HOT GROUND COLD GROUND
7541
ENERGIZING
CIRCUIT
(optional)
55515552
5562
5561
6564
6535
6536
6551
6563
6562
3571
6573
2536
F552
1543
7571
REFERENCE
CIRCUIT
7573
STANDBY
CIRCUIT
6565 6566
2564
2535
6571
6537
V_DG
+3V3
3565
F536
S
G
7536
7561
6676
D
I573
7535
For IDTV only
Vbatt
F563
-Vaudio
F561
+Vaudio
+6VA
3575
3576
Stdby_Con
POWER-DOWN
A4
F564
+3V
+6VA
+6VA
5537
+6V
F537
Vaux
I548
DEFLECTION
A4
INTF_Y GREEN_IN
A4
2x
HERCULES
A5
EHTinfo
A2
56
97
7200-H
(SYNC)
22L05L AA6.
VIDEO
IDENT
MAIN
SYNC
SEPARATOR
EHTo
PHI 1
DETECTOR
VERTICAL
SYNC
SEPARATOR
3232
2240
HORIZONTAL
OSC.
SAND-
CASTLE
GENERATOR
X-RAY
PROTECTION
VERTICAL
DIVIDER
112
A2A2
EHTinfo
113116
VERTICAL
GUARD
DETECTOR
PHI 2
DETECTOR
VERTICAL
SAW-
THOOTH
Vguard
HORIZONTAL
OUTPUT
E/W
+
GEOMETRY
VERTICAL
OUTPUT
+
GEOMETRY
R.G.B.
BLANKING
A5
LINE + FRAME DEFLECTION
A2
LINE
+
E/W
CORR.
7452
7411
3465
-12V
7454
Vbatt
1404
1
2
7451
7453
3
1
F402
HOR.
DEFL.
COIL
3461
3466
5445
3474
3471
F458
1491
1
2
F459
EHT
FOCUS VG2
10
6
5
7
8
9
Vguard
VER.
DEFL.
COIL
FRAME_FB
1454
3442
6481
Vbatt
A4
I433
TO
CRT
B1
+Vbatt
3481
3410
64836484
6453
6456
3457
3455
6401
3411
3451
2403
6452
3458
3484
3485
1452
2456
6459
Vbatt
7401 : 7403
7480 : 7483
FRAME_FB
EHTb
EHTb
+
EHTinfo
+
EHTinfo
BCL
PROC.
F452
F453
VIDEO/SUPPLY
F455
6454
6455
EHTb
FILAMENT
VIDEO/SUPPLY
3401
F401
F_15210_035.eps
POWER-DOWN
A1
A4
BCL
A4
-12V
FILAMENT
+9V
VT_SUPPLY
A4
181005
1401
5
4
3
2
1
TO 1351
B1
CRT
+6VA
LINE
7408
F412
TO RGB
PROC.
7207
HDRIVE
HD
SANDCASTLE
A5
EW_DRIVE
62
63
108
-9V
7404
+8V
7410
3498
HD
6486
5402
E/W
+8V
34203440
I417
7484
7405
BU4508DX
F418
7406
3497
F414
OUTPUT
CIRCUIT
FRAME
+9V
106
107
VDRA
VDRB
F460
F461
3462
74557456
3463
Page 23
Block Diagrams, Testpoint Overviews, and Waveforms
•The Service Default Mode (SDM) and Service Alignment
Mode (SAM) are described in chapter 5 “Service Modes,
...”.
•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:
•AC voltage and frequency (region dependent):
– 120 V
– 240 V
/ 60 Hz, or
AC
/ 50 Hz.
AC
•Connect the set to the AC power (a.k.a. Mains voltage) via
an isolation transformer with a low internal resistance.
•Allow the set to warm up for approximately 20 minutes.
•Measure the voltages and waveforms in relation to chassis
ground (with the exception of the voltages on the primary
side of the power supply). Never use the cooling fins /
plates as ground.
•Test probe: R
> 10 Mohm; Ci < 2.5 pF.
i
•Use an isolated trimmer / screwdriver to perform the
alignments.
8.2Hardware Alignments
4. Go, via the MENU key, to the normal user menu and set
5. SATURATION/COLOR to “0”.
6. CONTRAST to “0”.
7. BRIGHTNESS to minimum (OSD just visible).
8. Return to the SAM via the MENU key.
9. Connect the RF output of a pattern generator to the
antenna input. Test pattern is a 'black' picture (blank
screen on CRT without any OSD info) with a signal
strength of 1 V
.
PP
10. Set the channel of the oscilloscope to 50 V/div and the time
base to 0.2 ms (external triggering on the vertical pulse).
Ground the scope at the CRT panel and connect a 10:1
probe to one of the cathodes of the picture tube socket.
11. Measure the cut off pulse during first full line after the frame
blanking (see figure “V
waveform”). You will see two
CUTOFF
pulses, one being the “cut off” pulse and the other being the
“white drive” pulse. Choose the one with the lowest value;
this is the “cut off” pulse.
12. Select the cathode with the highest V
alignment. Adjust the V
of this gun with the SCREEN
CUTOFF
value for the
DC
potentiometer (see figure “Top view family board”) on the
LOT to 160 V
, except for the 25/28BLD picture tube
DC
(Black Line Display, for EU only); this tube must be aligned
to 140 V
DC
.
13. Restore BRIGHTNESS and CONTRAST to normal (= 31).
max.
V
0V Ref.
CUTOFF
[VDC]
E_06532_011.eps
110204
1005
ComPair
1504
7990
7601
SDM
9252
1221
1204
1000 (TUNER)
Figure 8-1 Top view family board
Focus
Screen
Figure 8-2 V_cutoff waveform
1506
8.2.2Focusing
1. Tune the set to a circle or crosshatch test pattern (use an
external video pattern generator).
2. Choose picture mode NATURAL with the SMART
PICTURE button on the remote control transmitter.
3. Adjust the FOCUS potentiometer (see figure “Top view
family board”) until the vertical lines at 2/3 from east and
west, at the height of the centerline, are of minimum width
5512
LOT
VG2
F_15050_066.eps
170205
without visible haze.
8.2.1Vg2 Adjustment
1. Activate the SAM.
2. Go to the WHITE TONE sub menu.
3. Set the values of NORMAL RED, GREEN and BLUE to
“32”.
Page 76
EN 76L05L AA8.
Alignments
8.3Software Alignments and Settings
00028 L05US1 1.1 PUS1 0.7 SDM SAM SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
00028 L05US1 1.1 PUS1 0.7 SAM SAM SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?. AGC 30. Normal Green 35
. Options . CL 10. Normal Blue 41
. AKB On
. Tuner
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on
1 00028 L05US1 1.1 PUS1 0.7 CSM
2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000. Cool . Delta Warm Red 2
4 nnXXnnnn/nnX. Normal . Delta Warm Green -3
5 P3C-1. Warm . Delta Warm Blue -13
6 NOT TUNED
7 NTSC
8 STEREO
9 CO 50 CL 50 BR 50 HU 0
0 AVL Off BS 50
Enter the Service Alignment Mode (see also chapter 5 “Service
Modes, ....”). The SAM menu will now appear on the screen.
Select one of the following alignments:
•Options
•Tuner
•White Tone
•Geometry
•Audio
8.3.1Options
Options are used to control the presence/absence of certain
features and hardware.
How to Change an Option Byte
An Option Byte represents a number of different options.
Changing these bytes makes it possible to set all options very
fast. All options are controlled via seven option bytes. Select
the option byte (OP1.. OP7) with the MENU UP/ DOWN keys,
and enter the new value.
When you leave the OPTION submenu the changes in the
Option Byte settings are automatically saved. Some changes
will only take effect after the set has been switched “off” and
“on” with the AC power switch (cold start).
How to Calculate the Value of an Option Byte
•Calculate an Option Byte value (OP1 .. OP7) in the
following way:
•Check the status of the single option bits (OB): are they
enabled (1) or disabled (0).
•When an option bit is enabled (1) it represents a certain
value (see column “Bit value” in the table below). When an
option bit is disabled, its value is 0.
•The total value of an Option Byte (decimal) is formed by the
sum of its eight option bits. The factory values are printed
on a sticker on the CRT (depends on region).
Table 8-1 Option Byte calculation
Bit (value) OP1 OP2 OP3 OP4 OP5 OP6 OP7
0 (1)OB10 OB20 OB30 OB40 OB50 OB60 OB70
1 (2)OB11 OB21 OB31 OB41 OB51 OB61 OB71
2 (4)OB12 OB22 OB32 OB42 OB52 OB62 OB72
3 (8)OB13 OB23 OB33 OB43 OB53 OB63 OB73
4 (16)OB14 OB24 OB34 OB44 OB54 OB64 OB74
5 (32)OB15 OB25 OB35 OB45 OB55 OB65 OB75
6 (64)OB16 OB26 OB36 OB46 OB56 OB66 OB76
7 (128)OB17 OB27 OB37 OB47 OB57 OB67 OB77
Total:Sum Sum Sum Sum Sum Sum Sum
Option Bit Assignment
The option bit assignments for all software clusters are as
follows:
Table 8-2 Option code overview per model
Option Bit
Option name
32PW8422/78
34PT8422/78
34PT8422/77
32PW8422/77
32PW8422/44
29PT8422/78
29PT8422/77
29PT8422/44
28PW8422/78
OP1
7Philips Tuner0000000000
6FM Radio0000000000
5LNA0000000000
4HDMI1001100000
3YPbPr1111111111
2UK PNP0000000000
1Virgin Mode0000000000
0China0000000000
OP1 value (decimal)2488242488888
OP1 value (hexadecimal)18080818180808080808
OP2
7SC0000000000
6Green_UI0000000000
5Channel Naming1111111111
4LTI0000000000
3Tilt1111111111
2Fine Tuning1111111111
1PIP Philips Tuner0000000000
0Hue1111111111
OP2 value (decimal)45454545454545454545
OP2 value (hexadecimal)2D2D2D2D2D2D2D2D2D2D
OP3
7EW Function1111111111
62 Tuner PIP0000000000
5PIP_Splitter0000000000
4Splitter0000000000
3Virtual Dolby1111111111
2Wide Screen1001100011
1WSSB(EU)0000000000
0Eco_Subwoofer0000000000
28PW8422/77
Page 78
EN 78L05L AA8.
Alignments
Option Bit
OP3 value (decimal)140136136140140136136136140140
OP3 value (hexadecimal)8C88888C8C8888888C8C
OP4
7Compress-16-101111111111
6Optimized-start
5Ultra Bass1111111111
4Delta Volume0000000000
3
2Volume Limiter1111111111
1
0Stereo_Nicam_2CS0000000000
OP4 value (decimal)164164164164164164164164164164
OP4 value (hexadecimal)A4A4A4A4A4A4A4A4A4A4
OP5
7AV11111111111
6AV21111111111
5AV31111111111
4CVI1111111111
3SVHS21111111111
2SVHS30000000000
1Hotel Mode0000000000
0
OP5 value (decimal)248248248248248248248248248248
OP5 value (hexadecimal)F8F8F8F8F8F8F8F8F8F8
OP6
7Personal Zapping 1111111111
6Smart surf0000000000
5FM Trap1111111111
4Combfilter0000000000
3Active Control1111111111
2Video Text0000000000
1Light Sensor1111111111
0Dual Text0000000000
OP6 value (decimal)170170170170170170170170170170
OP6 value (hexadecimal)AAAAAAAAAAAAAAAAAAAA
OP7
7Time Win10000000000
6Malay0000000000
5Thai0000000000
4Signal-strength0000000000
30000000000
20000000000
10000000000
00000000000
OP7 value (decimal)0000000000
OP7 value (hexadecimal)00000000000000000000
Option name
34PT8422/78
32PW8422/78
34PT8422/77
32PW8422/77
32PW8422/44
29PT8422/78
29PT8422/77
29PT8422/44
28PW8422/78
28PW8422/77
Option bit Definition
Option Byte 1 (OP1)
•OB17: PHILIPS TUNER
– 0 : ALPS / MASCO compatible tuner is in use.
– 1 : Philips compatible tuner is in use.
•OB16: FM RADIO
– 0 : FM radio feature is disabled or not applicable.
– 1 : FM radio feature is enabled.
•OB15: LNA
– 0 : Auto Picture Booster is not available or not
•OB13: YPbPr
– 0 : Composite video (YPbPr) feature is disabled or not
applicable.
– 1 : YPbPr feature is enabled.
•OB12: UK PNP
– 0 : UK's default Plug and Play setting is not available or
not applicable.
– 1 : UK's default Plug and Play setting is available.
Page 79
Alignments
EN 79L05L AA8.
– When UK PNP and VIRGIN MODE are set to “1” at the
initial setup and after exiting from menu, VIRGIN
MODE will be set automatically to “0” while UK PNP
remains “1”.
•OB11: VIRGIN MODE
– 0 : Virgin mode is disabled or not applicable.
– 1 : Virgin mode is enabled. Plug and Play menu item
will be displayed to perform installation at the initial
startup of the TV when VIRGIN MODE is set to “1”.
After installation is finished, this option bit will be
automatically set to “0”.
•OB10: CHINA
– 0 : Tuning is not for China set, or this option bit is not
applicable.
– 1 : Tuning is for China set.
Option Byte 2 (OP2)
•OB27: Soft Clipping.
– Not applicable. Default setting is “0”.
•OB26: GREEN UI
– 0 : Green UI is disabled (for Philips brand).
– 1 : Green UI is enabled (for Magnavox brand).
– Note: only for NAFTA region.
•OB25: CHANNEL NAMING
– 0 : Name FM Channel is disabled or not applicable.
– 1 : Name FM Channel is enabled.
– Note : Name FM channel can be enabled only when
•OB23: TILT
– 0 : Rotate Picture is disabled or not applicable.
– 1 : Rotate Picture is enabled.
•OB22: FINE TUNING
– 0 : Fine Tuning for Channel Offset is disabled or not
applicable.
– 1 : Fine Tuning for Channel Offset is enabled.
•OB21: PIP PHILIPS TUNER
– 0 : ALPS / MASCO compatible tuner is in use for PIP
module.
– 1 : Philips compatible tuner is in use for PIP module.
•OB20: HUE
– 0 : Hue/Tint Level is disabled or not applicable.
– 1 : Hue/Tint Level is enabled.
Option Byte 3 (OP3)
•OB37: EW FUNCTION
– 0 : EW function is disabled. In this case, only Expand
4:3 is allowed, Compress 16:9 is not applicable.
– 1 : EW function is enabled. In this case, both Expand
4:3 and Compress 16:9 are applicable.
•OB36: 2 TUNER PIP
– 0 : Software selection no PIP
– 1 : Software selection with PIP
– Note: Only for EU/AP region for sets with PIP.
•OB35: PIP SPLITTER
– 0 : Normal Tuner in PIP
– 1 : Splitter in PIP
– Note: Only for EU/AP region. For PIP sets and build in
with Splitter in PIP tuner.
•OB34: SPLITTER
– 0 : Normal Tuner for main chassis
– 1 : Splitter Tuner for main chassis
– Note: Only for EU/AP region.
•OB33: VIRTUAL DOLBY
– 0 : Virtual Dolby is not applicable.
– 1 : Virtual Dolby is applicable.
•OB32: WIDE SCREEN
– 0 : Software is used for 4:3 sets or not applicable.
– 1 : Software is used for 16:9 sets.
•OB31: WSSB (EU)
– 0 : WSSB is disabled or not applicable.
– 1 : WSSB is enabled.
– Note : This option bit can be set to “1” only when WIDE
SCREEN= “1”.
•OB30: ECO SUBWOOFER
– 0 : Feature is disabled or not applicable.
– 1 : Feature is enabled.
Option Byte 4 (OP4)
•OB47: OP_COMPRESS_16_10
– 0 : Compress mode is not used.
– 1 : Compress mode is used.
•OB46: OP_OPTIMISED_START
– Not applicable. Default setting is “0”.
•OB45: ULTRA BASS
– 0 : Ultra Bass is disabled or not applicable.
– 1 : Ultra Bass is enabled.
– Default setting is “0”.
•OB44: DELTA VOLUME
– 0 : Delta Volume Level is disabled or not applicable.
– 1 : Delta Volume Level is enabled.
•OB43: Reserved
– Default setting is “0”.
•OB42: VOLUME LIMITER
– 0 : Volume Limiter Level is disabled or not applicable.
– 1 : Toggle Volume Limiter Level is enabled.
•OB41: Reserved
– Default setting is “0”.
•OB40: STEREO NICAM 2CS
– 0 : For AV Stereo.
– 1 : For NICAM Stereo 2CS.
Option Byte 5 (OP5)
•OB57: AV1
– 0 : AV1 source is not present.
– 1 : AV1 source is present.
•OB56: AV2
– 0 : AV2 source is not present.
– 1 : AV2 source is present.
– Note : For EU, when AV2=“1”, both EXT2 and SVHS2
should be included in the OSD loop.
•OB55: AV3
– 0 : Side/Front AV3 source is not present.
– 1 : Side/Front AV3 source is present.
•OB54: CVI
– 0 : CVI source is not available.
– 1 : CVI source is available.
•OB53: SVHS2
– 0 : SVHS2 source is not available.
– 1 : SVHS2 source is available.
– Note : This option bit is not applicable for EU.
•OB52: SVHS3
– 0 : SVHS3 source is not available.
– 1 : SVHS3 source is available.
– Note : This option bit is not applicable for EU.
•OB51: HOTEL MODE
– 0 : Hotel mode is disabled or not applicable.
– 1 : Hotel mode is enabled.
•OB50: Reserved
– Default setting is “0”.
Option Byte 6 (OP6)
•OB67: PERSONAL ZAPPING
– 0 : Personal Zapping feature is disabled or not
applicable.
– 1 : Personal Zapping feature is enabled.
•OB66: SMART_SURF
– 0 : Smart Surf key is not used on remote control.
– 1 : Smart Surf key is used on remote control.
•OB65: FM TRAP
– 0 : FM Trap is not present.
– 1 : FM Trap is present.
– Note: Only for LATAM region.
•OB64: COMBFILTER
– 0 : 3D-combfilter is not present.
Page 80
EN 80L05L AA8.
Alignments
– 1 : 3D-combfilter is present.
•OB63: ACTIVE CONTROL
– 0 : Active Control feature is disabled or not applicable.
– 1 : Active Control feature is enabled.
•OB62: VIDEO TEXT
– 0 : Video Text (DW with TXT) is disabled or not
applicable.
– 1 : Video Text (DW with TXT) is enabled.
– Note: For EU only.
•OB61: LIGHT SENSOR
– 0 : Light sensor feature is disabled or not applicable.
– 1 : Light sensor feature is enabled.
•OB60: DUAL TEXT
– 0 : Dual Text and Text Dual Screen are disabled or not
applicable.
– 1: Dual Text and Text Dual Screen are enabled.
Option Byte 7 (OP7)
•OB77: TIME WIN1
– 00 : The time window is set to 1.2 s.
– 01 : The time window is set to 2 s.
– Note :The time-out for all digit entries depends on this
setting.
•OB76: MALAY
– For AP only. Default setting is “0”.
•OB75: THAI
– For AP only. Default setting is “0”.
•OB74: SIGNAL_STRENGTH
– For AP only. Default setting is “0”.
•OB73: Reserved
– Default setting is “0”.
•OB72: Reserved
– Default setting is “0”.
•OB71: Reserved
– Default setting is “0”.
•OB70: Reserved
– Default setting is “0”.
RIGHT/LEFT cursor keys. The value can be changed with the
LEFT/RIGHT cursor keys. First, select the values for the
NORMAL color temperature. Then select the values for the
COOL and WARM mode. After alignment, switch the set to
STANDBY, in order to store the alignments.
Default settings:
•NORMAL:
– NORMAL R= “26”
– NORMAL G= “32”
– NORMAL B= “27”
The geometry alignments menu contains several items to align
the set, in order to obtain correct picture geometry.
1
2
3
4
VERT. SLOPE
VERT. SHIFT
VERT. AMPLITUDE
V.S-CORRECTION
8.3.2Tuner
Note: Described alignments are only necessary when the NVM
(item 7601) is replaced.
IF PLL
This adjustment is auto-aligned. Therefore, no action is
required.
AGC (AGC take over point)
1. Set the external pattern generator to a color bar video
signal and connect the RF output to aerial input. Set
amplitude to 10 mV and set frequency to 61.25 MHz
(channel 3).
2. Connect a DC multimeter to pin 1 of the tuner (item 1000
on the main panel).
3. Activate the SAM.
4. Go to the TUNER sub menu.
5. Select AGC with the UP/DOWN cursor keys.
6. Adjust the AGC-value with the LEFT/ RIGHT cursor keys
until the voltage at pin 1 of the tuner lies between 3.8 and
2.3 V (default value is “20”).
7. Switch the set to STANDBY, in order to store the
alignments.
CL (Cathode drive level)
Always set to “5”.
8.3.3 White Tone
In the WHITE TONE sub menu, the values of the black cut off
level can be adjusted. Normally, no alignment is needed, and
you can use the given default values.
The color temperature mode (NORMAL, COOL and WARM)
and the color (R, G, and B) can be selected with the UP/DOWN
5
6
7
8
9
10
11
12
HOR. SHIFT
HOR. AMPLITUDE
E/W PARABOLE
UPPER E/W CORNER
LOWER E/W CORNER
E/W TRAPEZIUM
HOR. PARALLELOGRAM
HOR. BOW
E_06532_010.eps
110204
Figure 8-4 Geometry alignments
1. Connect an external video pattern generator to the aerial
input of the TV-set and input a crosshatch test pattern. Set
the generator amplitude to at least 1 mV and set frequency
to 61.25 MHz (channel 3).
2. Set 'Smart Picture' to NATURAL (or MOVIES).
3. Activate the SAM menu (see chapter 5 “Service Modes,
...”).
4. Go to the GEOMETRY sub menu.
5. Choose HORIZONTAL or VERTICAL alignment.
Page 81
Now the following alignments can be performed:
Horizontal
•Horizontal Parallelogram (HP). Align straight vertical
lines in the top and the bottom; vertical rotation around the
center.
•Horizontal Bow (HB). Align straight horizontal lines in the
top and the bottom; horizontal rotation around the center.
•Horizontal Shift (HSH). Align the horizontal center of the
picture to the horizontal center of the CRT.
•East West Width (EWW). Align the picture width until the
complete test pattern is visible.
•East West Parabola (EWP). Align straight vertical lines at
the sides of the screen.
•Upper Corner Parabola (UCP). Align straight vertical lines
in the upper corners of the screen.
•Lower Corner Parabola (LCP). Align straight vertical lines
in the lower corners of the screen.
•East West Trapezium (EWT). Align straight vertical lines
in the middle of the screen.
•H60 (Delta HSH for 60Hz, if present). Align straight
horizontal lines if NTSC system is used (60 Hz) i.s.o. PAL
(50 Hz). Default value is “9”.
Vertical
•Service blanking (SBL). Switch the blanking of the lower
half of the screen “on” or “off” (to be used in combination
with the vertical slope alignment).
•Vertical Shift (VSH). Align the vertical centering so that
the test pattern is located vertically in the middle. Repeat
the 'vertical amplitude' alignment if necessary.
•Vertical slope (VS). Align the vertical center of the picture
to the vertical center of the CRT. This is the first of the
vertical alignments to perform. For an easy alignment, set
SBL to “on”.
•Vertical Amplitude (VAM). Align the vertical amplitude so
that the complete test pattern is visible.
•Vertical S-Correction (VSC). Align the vertical linearity,
meaning that vertical intervals of a grid pattern must be
equal over the entire screen height.
•Vertical Zoom (VX, if present). The vertical zoom is
added in for the purpose of development. It helps the
designer to set proper values for the movie expand or
movie(16x9) compress. Default value is “25”.
•V60 (Delta VAM for 60Hz, if present). Align straight
vertical lines if NTSC system (60 Hz) is used i.s.o. PAL (50
Hz). Default value is “-2”.
Alignments
EN 81L05L AA8.
8.3.5Audio
No alignments are needed for the audio sub menu. Use the
given default values.
QSS (Quasi Split Sound)
•For NICAM/2CS sound system (EU/AP, except for APNTSC): set to “On”.
•For AV-Stereo sound system (sets without NICAM): set to
“On”.
•For all other sets (NAFTA/LATAM/AP-NTSC): set to “Off”.
FMI (Frequency Modulation Intercarrier)
•For NICAM/2CS sound system (EU/AP, except for
APNTSC): set to “On”.
•For AV-Stereo sound system (sets without NICAM): set to
“Off”.
•For dBx/non-dBx sound systems: set to “On”.
NICAM Alignment
•For sets with NICAM/2CS (EU/AP, except for AP-NTSC)
sound system: set to “79”.
•For all other sets (NAFTA/LATAM/AP-NTSC): set to “63”.
Page 82
EN 82L05L AA9.
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
9.Circuit Descriptions, List of Abbreviations, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 2fH Synchronization
9.3 Source Select
9.4 Video Processing
9.5 Audio Processing
9.6 Abbreviation List
9.7 IC Data Sheets
Notes:
•Only new circuits compared to the L04U chassis are
described in this chapter. For the other circuit descriptions,
see the manual of the L04U chassis.
•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 sections “Block
Diagrams, ...”, and/or “Electrical Diagrams”. Where
necessary, you will find a separate drawing for clarification.
9.1Introduction
The "L05" chassis is designed for the model year 2005 and is
used for TV sets with large screen sizes (from 29 to 34 inch), in
Super Flat and Real Flat executions (both in 4:3 and 16:9
variants). This chassis is High Definition ready with a NTSC/
PAL tuning system.
There are three types of CRT, namely one with 100 degrees
deflection angle, one with 110 degrees and a Wide Screen
CRT.
The tuning system features 181 channels with on-screen
display. The main tuning system uses a tuner, a
microcomputer, and a memory IC mounted on the main panel.
The microcomputer communicates via the I
memory IC, the customer keyboard, the remote receiver, the
tuner, the signal processor IC, the HD processing section, and
the audio output IC. The memory IC retains the settings for
favorite stations, customer-preferred settings, and service /
factory data.
The on-screen graphics and closed caption decoding are done
within IC 7206 located on the HD panel. They are added to the
main signal in the display processor, IC 7221, also located on
the HD panel.
The chassis uses a Switching Mode Power Supply (SMPS) for
the main voltage source. The chassis has a 'hot' ground
reference on the primary side and a cold ground reference on
the secondary side of the power supply and the rest of the
chassis. For more information on the power supply, see the
L04 manual.
2
9.22fH Synchronization
The 2fH sync generation is done by the DPTV SVP (IC7201).
This IC converts the H and V sync signals (Hs and Vs) coming
from the UOC into 2fH sync signals (HSYNC and VSYNC)
which are outputted to the TDA9332 (HOP).
The HOP again generates the necessary deflection signals like
VD+ and VD- for the Frame deflection; HD for line deflection;
EW_DRIVE.
C bus with the
In comparison to its predecessor (the L04), this chassis has the
following (new) features:
•High Definition (HD) signal processing: The chassis has
a special HD processing board.
•HDMI input: The chassis has a High-Definition Multimedia
Interface (HDMI) input.
The standard architecture consists of a Main panel (called
"family board"), a Picture Tube panel, a Side I/O panel, a HDMI
panel, a HD panel and a Top Control panel. The Main panel
consists primarily of conventional components with some
surface mounted devices in the audio and video processing
part.
The functions for the basic video and audio processing are
performed by one IC (TDA1200x, item 7200), the so-called
third generation Ultimate One Chip (UOC-III) (a.k.a.
‘Hercules’). This chip is mounted on the “solder” side of the
main panel, and has the following tasks:
•Mono/stereo, audio switching and part of the video
switching.
•FM sound demodulation.
The CVBS-signal produced by the UOCIII is supplied to the HD
panel. This panel converts the standard framerate (1fH) CVBSsignal coming from the tuner and from the AV1 and AV2 inputs
into a HD-signal with double framerate (2fH). The HD panel
also handles video signals from the HDMI and the CVI input (I/
O panel).
All signals entering the TV set, be it NTSC/PAL signals from the
tuner or signals already in HD format from the HDMI I/O panel,
are displayed on the CRT in 1080i format. The HD panel
performs the following functions:
•Video processing (mainly by the Trident chip, IC7201).
•OSD processing.
•Closed caption / text processing
•A/D conversion (of analog signals coming directly from the
HDMI I/O panel).
9.3Source Select
This chassis has the following inputs in addition to the tuner RF
input:
•AV1: This is a composite video input.
•CVI: This is a Component Video Input, it can accept 480i,
480p, 720p or 1080i.
•AV2: This input can accept CVBS or S-Video.
•Side: This input can accept CVBS or S-Video.
•HDMI: This is a High-Definition Multimedia Interface, it can
accept 480p, 720p or 1080i video and audio in a digital
TMDS (Transition Minimized Differential Signal) format.
The audio/video source selection between the tuner, AV1, AV2
and Side is controlled via the UOCIII. The selected signal is fed
to the HD panel which selects between the output of the
UOCIII, CVI, and the HDMI input.
The Audio/Video Source Select is one of the more complex
functions due to its diversity and complex switching. The Audio/
Video Source Select comprises the following components:
•The UOCIII for Mono Audio and Video Source Selection.
•The HEF switch for Stereo Audio as well as Video
Selection.
Page 83
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
EN 83L05L AA9.
9.3.1Options
The option settings for the Source Selection can be found in
Option settings of the SAM mode. The Option settings for
Option 5 are as follows:
•Option Byte 5
– Bit 7: AV1
– Bit 6: AV2
– Bit 5: AV3
–Bit 4: CVI
– Bit 3: SVHS2
– Bit 2: SVHS3
– Bit 1: Hotel mode
–Bit 0:
For more details on the option settings, please refer to chapter
8 “Alignments”.
9.3.2Audio Source Selection
The signals coming out of the DEMDEC (internal demodulator/
decoder block of the UOCIII) are selectable and consist of the
following (depending on the transmission):
•DEC L/R (Can be NICAM, FM 2CS, or BTSC Stereo).
•Mono (Refers to fallback/forced Mono in Stereo
Transmission).
•SAP.
For L05, the assigned I/O with respect to the UOCIII is as
follows:
•AV1 Input assigned to Audio In 5.
•AV2 Input assigned to Audio In 3.
•Side AV Input assigned to Audio In 4.
•External Interface Input assigned to Audio In 2.
•Constant Level Output assigned to Loudspeaker Output.
9.3.3Video Source Selection
Video source selection is done inside the UOCIII. Therefore it
provides a video switch with 3 external CVBS inputs and a
CVBS output. All CVBS inputs can be used as Y-input for Y/C
signals. However, only 2 Y/C sources can be selected because
the circuit has 2 chroma inputs.
The selected input signal is fed to the HD panel for further
processing.
are performed, as well as the insertion of OSD. Then, the
processed video signal is fed to the CRT panel.
Some features:
•Full YUV-loop interface (alternative functions: DVD, RGB
or Y/C).
•Internal OSD insertion (not Saturation or Contrast
controlled).
•Double window implementation.
•Linear / non linear scaling for 16:9 sets.
•Tint (hue) on UV signals (including DVD).
•Peaking, Coring, Black \ Blue \ White-stretch.
•Transfer-Ratio and Scavem (also on TXT).
9.4.1Block Diagram
Following diagram is the block diagram of the video processing
part:
CVBS_TXT
TUNER
VIDEO
SAW
AUDIO
SAW
UOCIII
(a.k.a. ‘Hercules’ )
CVBS/AUDIO
REAR/SIDE
INPUT/OUTPUT
AV1
CVI
HDMI
SOURCE
SELECT
CVBS_OUT
PAINTER
DPTV
ADC
Figure 9-1 Video processing block diagram
9.5Audio Processing
The audio decoding is done entirely via the UOCIII, IC 7200.
The IF output from the Tuner is fed directly to either the VideoIF or the Sound-IF input depending on the type of concept
chosen. There are mainly two types of decoder in the UOCIII,
an analog decoder that decodes only Mono, regardless of any
standards, and a digital decoder (or DEMDEC) that can decode
both Mono as well as Stereo, again regardless of any
standards.
RGBRGB
HOP
CRT
F_15050_071.eps
201005
9.4Video Processing
The Video Processing is divided into two sections, one for the
processing of 1fH signals (by the UOCIII), and a second for the
processing of 2fH signals (on the HD panel, by the Trident
chip).
The tuner is only one of the sources of video signal for the
UOCIII. The tuner is controlled by the UOCIII. The UOCIII also
receives video signals from AV2 and the Side I/O panel.
If a video signal is selected by the user, the selected CVBS
signal is output to two different lines. One CVBS line goes to
the Trident chip, IC 7201, on the HD panel. CVBS_TXT signals
are fed to IC 7206 on the HD panel, which is able to process
Closed Caption text or Teletext. This IC also generates the
OSD texts.
If the TV set receives a 2fH signal (via one of its HDMI panel
inputs, i.e. the CVI/YPbPr or the HDMI input), the signal is fed
to a selector switch on the HD panel, IC 7205. The selected
signal (component video or RGB) is fed to an AD converter, IC
7210. The digital signal coming from the AD converter is fed to
the Trident chip, IC 7201. This IC enhances the video quality of
the picture and scales the picture to the 1080i format. The
analog RGB signal coming from the Trident chip is fed to the
display processor, IC 7221. Here, the picture control functions
Audio is included in the HDMI bit stream. Digital audio from
IC7002 is fed to an audio DAC, IC 7011. The audio signal from
the DAC is fed to IC 7050, a switch, of which only one input is
used. The output of the switch is fed to the UOCIII chip, IC
7200.
Audio for the CVI input should be inserted into AV1. Pins 68
and 69 of the UOCIII provide the audio signal for the twochannel 20 W Audio Amplifier, IC 7990.
Page 84
EN 84L05L AA9.
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
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
AFTAutomatic Fine Tuning
AGCAutomatic Gain Control: algorithm that
controls the video input of the feature
box
AMAmplitude Modulation
APAsia Pacific region
ARAspect Ratio: 4 by 3 or 16 by 9
ATSAutomatic Tuning System
AVExternal Audio Video
AVLAutomatic Volume Leveler
BCLBeam Current Limitation
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz
BTSCBroadcast Television Standard
Committee. Multiplex FM stereo sound
system, originating from the USA and
used e.g. in LATAM and AP-NTSC
countries
CCClosed Caption
CCCContinuous Cathode Calibration
ComPairComputer aided rePair
CRTCathode Ray Tube or picture tube
CSMCustomer Service Mode
CTIColor Transient Improvement:
manipulates steepness of chroma
transients
CVBSComposite Video Blanking and
Synchronization
CVIComponent Video Input
DACDigital to Analogue Converter
DBXDynamic Bass Expander or noise
reduction system in BTSC
D/KMonochrome TV system. Sound
carrier distance is 6.5 MHz
DFUDirection For Use: description for the
end user
DNRDynamic Noise Reduction
DSPDigital Signal Processing
DSTDealer Service Tool: special remote
control designed for dealers to enter
e.g. service mode
DVDDigital Versatile Disc
EEPROMElectrically Erasable and
Programmable Read Only Memory
EHTExtra High Tension
EHT-INFOExtra High Tension information
EPGElectronic Programming Guide
EUEurope
EWEast West, related to horizontal
deflection of the set
EXTExternal (source), entering the set via
SCART or Cinch
FBLFast Blanking: DC signal
accompanying RGB signals
FILAMENTFilament of CRT
FMField Memory or Frequency
Modulation
HHorizontal sync signal
HPHeadphone
IMonochrome TV system. Sound
carrier distance is 6.0 MHz
I2C or IICIntegrated IC bus
IFIntermediate Frequency
ITVInstitutional TV
LATAMLatin American countries like Brazil,
Argentina, etc.
LEDLight Emitting Diode
L/L'Monochrome TV system. Sound
carrier distance is 6.5 MHz. L' is Band
I, L is all bands except for Band I
LSLarge Screen or Loudspeaker
M/NMonochrome TV system. Sound
carrier distance is 4.5 MHz
NCNot Connected
NICAMNear Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, mainly used in Europe.
NTSCNational Television Standard
Committee. Color system mainly used
in North America and Japan. Color
carrier NTSC M/N = 3.579545 MHz,
NTSC 4.43 = 4.433619 MHz (this is a
VCR norm, it is not transmitted off-air)
NVMNon Volatile Memory: IC containing
TV related data e.g. alignments
OBOption Bit
OCOpen Circuit
OPOption Byte
OSDOn Screen Display
PALPhase Alternating Line. Color system
mainly used in West Europe (color
carrier = 4.433619 MHz) and South
America (color carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCBPrinted Circuit board
PLLPhase Locked Loop. Used for e.g.
FST tuning systems. The customer
can give directly the desired frequency
PORPower-On Reset
PTPPicture Tube Panel (or CRT-panel)
RAMRandom Access Memory
RCRemote Control handset
RGBRed, Green, and Blue video signals
ROMRead Only Memory
SDAMService Default / Alignment Mode
SAPSecond Audio Program
SCSandcastle: pulse derived from sync
signals
S/CShort Circuit
SCLSerial Clock
SDASerial Data
SECAMSequence Couleur Avec Memoire.
Color system mainly used in France
and East Europe. Color carriers =
4.406250 MHz and 4.250000 MHz
SIFSound Intermediate Frequency
SSSmall Screen
STBYStandby
SVHSSuper Video Home System
SWSoftware
THDTotal Harmonic Distortion
TXTTeletext
uPMicroprocessor
UOCIII3rd generation Ultimate One Chip
(a.k.a. ‘Hercules’)
UVSHUHF, VHF, S-, and Hyper- band
VVertical sync signal
V_BATMain supply voltage for the deflection
stage (mostly 141 V)
V-chipViolence Chip
VCRVideo Cassette Recorder
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
XTALQuartz crystal
YCLuminance (Y) and Chrominance (C)
signal
Page 85
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
9.7IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
9.7.1Diagram H, TDA9178 (IC7610)
BLOCK DIAGRAM
EN 85L05L AA9.
Sout
Yin
Uin
Vin
DEC
Vcc
ground
Sandcastle
I2C
DIG
generation
calibrate
inputstage
supply
window
Y
U,V
Luminance vector processing
luminance
processing
saturation
correction
skin tone correction
green enhancement
blue stretch
noise
measuring
featuremode
detection
black stretch
histogram processing
gamma control
colour vector processing
2
C-control
I
"cue flash"
spectral processing
smart peaking
LTI
VDC
delay
control
colour
processing
CDS
CTI
+
ADC
output
stage
ADext1 (low frequencies)
ADext2 (low frequencies)
ADext3 (low frequencies)
Yout
Uout
Vout
CF
PIN CONFIGURATION
Sc
Nc
ADEXT1
ADEXT2
ADEXT3
Yin
1
2
3
4
5
6
24
23
22
21
20
19
Nc
Nc
CF
Sout
Vcc
Yout
TDA9178
ADR
Uin
Vin
TP
SCL
NcNc
7
8
9
10
11
1213
Figure 9-2 Internal Block Diagram and Pin Configuration
18
17
16
15
14
Vee
Uout
Vout
DEC
SDA
DIG
E_14480_075.eps
270204
Page 86
EN 86L05L AA10.
10. Spare Parts List
Not applicable
11. Revision List
Manual xxxx xxx xxxx.0
•First release.
Spare Parts List
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