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.
PSU (30-32”): Mains Filter and Standby (AS1) 5052-55
PSU (30-32”): Supply(AS2) 5152-55
Side I/O Panel(D) 5657
Top Control Panel(E) 5859
LED and Switch Panel(J) 6061
LCD Standby Audio Panel: Connections (SA1) 6265-67
LCD Standby Audio Panel: Standby(SA2) 6365-67
LCD Standby Audio Panel: Audio(SA3) 6465-67
8. Alignments69
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets73
Abbreviation list80
IC Data Sheets83
10. Spare Parts List86
11. Revision List93
Published by WO 0561 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 14711
EN 2LC4.6E AA1.
Technical Specifications, Connections, and Chassis Overview
1.Technical Specifications, Connections, and Chassis Overview
Index of this chapter:
1.1 Technical Specifications
1.2 Connection Overview
1.3 Chassis Overview
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
Note: The following connector colour abbreviations are used
(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1Rear Connections
AERIAL IN
L
L
R
R
VGA
PC
Audio Out
Audio In
SCART 2UARTI2C
Figure 1-1 Rear connections
VGA: Video RGB - In
Figure 1-2 VGA Connector
1 - Video Red 0.7 V
2 - Video Green 0.7 V
3 - Video Blue 0.7 V
4-n.c.
5 - Ground Gnd H
6 - Ground Red Gnd H
7 - Ground Green Gnd H
8 - Ground Blue Gnd H
9 - +5V_DC +5 V
10 - Ground Sync Gnd H
11 - n.c.
12 - DDC_SDA DDC data j
13 - H-sync 0 - 5 V j
14 - V-sync 0 - 5 V j
15 - DDC_SCL DDC clock j
Cinch: PC Audio - In
Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V
Cinch: Audio - Out
Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V
SCART 1
ComPair
E_14710_004.eps
1
5
6
11
10
15
E_06532_002.eps
050404
/ 75 ohm j
PP
/ 75 ohm j
PP
/ 75 ohm j
PP
j
DC
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
/ 10 kohm kq
RMS
/ 10 kohm kq
RMS
240604
Ambient conditions:
- Ambient temperature (°C): +5 to +40
- Maximum humidity: 90% R.H.
Power consumption
- Normal operation (W): 185
- Stand-by (W): < 2
Technical Specifications, Connections, and Chassis Overview
EN 3LC4.6E AA1.
SCART 1: Video RGB/YUV-In, CVBS-In/Out, Audio-In/Out
21
20
E_06532_001.eps
2
1
050404
Figure 1-3 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
4 - Ground Audio Gnd H
5 - Ground Blue Gnd H
6 - Audio L 0.5V
7 - Video Blue/U 0.7 V
8 - Function Select 0 - 2 V: INT
/ 10 kohm j
RMS
/ 75 ohm j
PP
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Green Gnd H
10 - n.c.
11 - Video Green/Y 0.7 or 1 V
/ 75 ohm j
PP
12 - n.c.
13 - Ground Red Gnd H
14 - n.c. H
15 - Video Red/V 0.7 V
16 - FBL 0 - 0.4 V: INT
/ 75 ohm j
PP
1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
SCART 2: Video CVBS/YC - In/Out, Audio - In/Out
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
4 - Ground Audio Gnd H
5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video C 0.7 V
/ 10 kohm j
RMS
/ 75 ohm k
PP
8 - Function Select 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Green Gnd H
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - n.c.
12 - n.c.
13 - Ground Red Gnd H
14 - Ground P50 Gnd H
15 - Video C 0.7 V
16 - n.c.
/ 75 ohm j
PP
17 - Ground Video Gnd H
18 - n.c.
19 - Video CVBS 1 V
20 - Video Y/CVBS 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
Aerial - In
- IEC-type Coax, 75 ohm D
1.2.2Side I/O connections
AudioS-Video Video
LR
E_14710_005.eps
210404
Figure 1-4 Side I/O connections
SVHS (Hosiden): Video Y/C - In
1 - Ground Y Gnd H
2 - Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V
/ 75 ohm j
PP
/ 75 ohm j
PP
Cinch: Video CVBS - In, Audio - 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
Mini Jack: Audio Head phone - Out
Bk - Head phone 32 - 600 ohm / 10 mW ot
1.3Chassis Overview
LCD PANEL
LED + SWITCH PANEL
J
SIDE I/O PANEL
D
Figure 1-5 Chassis Overview
TOP CONTROL PANEL
LCD STANDBY / AUDIO
LCD SUPPLY
SMALL SIGNAL BOARD
3D COMB FILTER
(ONLY FOR NTSC SETS)
E_14710_001.eps
E
SA
AS
A
CB
271204
EN 4LC4.6E AA2.
Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
Index of this chapter:
2.1 Safety Instructions
2.2 Warnings
2.3 Notes
2.1Safety Instructions
Safety regulations require that during a repair:
•Connect the set to the mains via an isolation transformer
(> 800 VA).
•Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•Route the wire trees correctly and fix them with the
mounted cable clamps.
•Check the insulation of the mains lead for external
damage.
•Check the strain relief of the mains cord for proper function.
•Check the electrical DC resistance between the mains plug
and the secondary side (only for sets which have a mains
isolated power supply):
1. Unplug the mains cord and connect a wire between the
two pins of the mains plug.
2. Set the mains switch to the "on" position (keep the
mains cord unplugged!).
3. Measure the resistance value between the pins of the
mains 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 plug.
•Check the cabinet for defects, to avoid touching of any
inner parts by the customer.
2.2Warnings
•All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential. Available
ESD protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
– Wristband tester 4822 344 13999.
•Be careful during measurements in the high voltage
section.
•Never replace modules or other components while the unit
is switched "on".
•When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
2.3Notes
2.3.1General
•Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (H), or hot ground (I), depending
on the tested area of circuitry. The voltages and waveforms
shown in the diagrams are indicative. Measure them in the
Service Default Mode (see chapter 5) with a colour bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or
61.25 MHz for NTSC (channel 3).
•Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.
•The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
•Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.
2.3.2Schematic Notes
•All resistor values are in ohms and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2
indicates 2.2 kohm).
•Resistor values with no multiplier may be indicated with
either an "E" or an "R" (e.g. 220E or 220R indicates 220
ohm).
•All capacitor values are given in micro-farads (µ= x10
nano-farads (n= x10
•Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
•An "asterisk" (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
•The correct component values are listed in the Electrical
Replacement Parts List. Therefore, always check this list
when there is any doubt.
2.3.3Rework 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, it is essential when
removing an (LF)BGA, 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 chance 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 shown to result in
problems during re-soldering.
-9
), or pico-farads (p= x10
-12
-6
),
).
Directions for Use
EN 5LC4.6E AA3.
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: http://www.atyourservice.ce.philips.com (needs
subscription). After login, select “Magazine”, then go to
“Workshop Information”. Here you will find Information on how
to deal with BGA-ICs.
2.3.4Lead Free Solder
Philips CE is going to produce lead-free sets (PBF) from
1.1.2005 onwards.
P
b
Figure 2-1 Lead-free logo
This sign normally has a diameter of 6 mm, but if there is less
space on a board also 3 mm is possible.
Regardless of this logo (is not always present), one must treat
all sets from this date onwards according to the following rules.
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 at least a solder-tip temperature of 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 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 rise 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 not to avoid, clean carefully 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
short 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.
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".
For additional questions please contact your local repair help
desk.
2.3.5Practical 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 - 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.
3.Directions for Use
You can download this information from the following websites:
•Figures below can deviate slightly from the actual situation,
due to the different set executions.
•Follow the disassemble instructions in described order.
4.2Service Position
First, put the TV set in its service position. Therefore, place it
upside down on a table top (use a protection sheet or foam
bars).
4.2.1The Foam Bars
E_06532_018.eps
Figure 4-2 Foam bars
The foam bars (order code 3122 785 90580) can be used for
all types and sizes of Flat TVs. By laying the plasma or LCD TV
flat on the (ESD protective) foam bars, a stable situation is
created to perform measurements and alignments. By first
placing a mirror flat on the table under the TV you can easily
see if something is happening on the screen.
Figure 4-1 Cable dressing
170504
E_14710_011.eps
020804
4.2.2The Aluminium Stands
E_06532_019.eps
Figure 4-3 Aluminium stands
The aluminium stands (order code 3122 785 90480) can also
be used to do measurements and alignments. The stands are
also very suitable to perform duration tests. With this stands the
set does not take much space, has no risk of over heating, and/
or falling. The stands can be mounted and removed quickly and
easily with use of the provided screws, which can be tightened
and loosened manually without the use of tools.
Caution: Only use the screws provided, otherwise it is possible
to damage the monitor inside.
170504
Mechanical Instructions
EN 7LC4.6E AA4.
4.3Assy/Panel Removal
4.3.1Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
1. Remove the screws, which secure the rear cover. The
screws are located at the top, bottom, left and right sides;
next to the Side/IO connections and SCART connection.
There are also three deeper located screws next to the
stands.
2. Lift the rear cover from the cabinet. Make sure that wires
and flat foils are not damaged during cover removal.
4.3.2Side I/O Panel
1. Disconnect the cable from the panel.
2. To replace the complete bracket, remove the two fixation
screws on either side of the panel.
3. Release the two fixation clamps and lift the panel out of the
bracket.
4.3.3LED + Switch Panel
1. Remove the two fixation screws.
2. Disconnect the cable from the rear of the panel.
1. Remove the middle fixation screw (1) from the bottom side
of the connector plate (as this holds the SSB bracket).
Note: Sometimes it is easier to loosen the complete
connector plate and remove it together with the SSB.
2. Remove all connector fixation screws (2) from the front
side of the connector plate.
3. Remove the two female screw locks (3) of the VGA
connector.
4. Release the plastic cable clips (4) on the shielding and
disconnect all cables from the SSB.
Note: Be careful with the fragile LVDS connector on the
SSB.
5. Now, completely remove the SSB (together with all the
shieldings) from the set.
6. Once the SSB is out, remove the fixation screws (5) from
the shielding.
7. Remove the shielding, it hinges at the left side (acc. photo).
8. Remove the fixation screws that hold the panel, and take
out the panel.
Notes:
•Pay special attention to the EMC foam on the SSB
shielding. These must be replaced in their initial positions
during set re-assembly.
•Insulate the tuner pins, so they cannot touch the shielding
(see also figure “SDM Service jumper” in Chapter 5).
4.3.6LCD Supply Panel
4.3.4Top Control Panel
1. Remove the two fixation screws.
2. Release the two fixation clamps and lift the panel out of the
bracket.
4.3.5Small Signal Board (SSB)
2
3
1
Figure 4-4 SSB Connector plate
E_14710_002.eps
210404
1. Disconnect all cables from the panel.
2. Remove the fixation screws from the panel.
4.3.7LCD Stand-by/Audio Panel
1. Disconnect all cables from the panel.
2. Remove the fixation screws from the panel.
4.3.8LCD Panel
1
4
4
2
2
1
Figure 4-6 LCD panel disassembly
3
4
4
E_14710_061.eps
030804
5
4
Figure 4-5 Cover shield of the SSB
E_14710_003.eps
210404
1. Remove the T10 screws (1) from the mounting frame.
2. Remove all mounting LCD panel T20 screws (2).
3. Important: Unplug the LVDS connector (3) at the LCD
panel. Be careful, as this is a very fragile connector!
4. Unplug the following connectors (4).
– LCD back light (disconnect at the LCD side)
– Loudspeaker (easiest to disconnect at the speaker and
to release the cable holders a little.
– Top Control cable (disconnect at SSB side).
– Cable between LED/Switch panel and SSB.
5. Lift the metal frame (together with all PWBs) from the LCD
panel.
6. After removal of the frame, you can lift the LCD display
from the set.
EN 8LC4.6E AA4.
4.4Set Re-assembly
To re-assemble the whole set, execute all processes in reverse
order.
Notes:
•While re-assembling, make sure that all cables are placed
and connected in their original position. See figure "Cable
dressing".
•Pay special attention not to damage the EMC foams at the
SSB shielding. Make sure that the EMC foams are put
correctly in place.
Mechanical Instructions
Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
EN 9LC4.6E AA5.
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 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 service manual as “half moons” with a dot in
the centre.
Perform measurements under the following conditions:
•Television set in Service Default Alignment Mode.
•Video input: colour bar signal.
•Audio input: 3 kHz left channel, 1 kHz right channel.
5.2Service Modes
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 centre 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 read-out for all chassis.
Minimum requirements for ComPair: a Pentium processor, a
Windows OS, and a CD-ROM drive (see also paragraph
"ComPair").
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 OSD display to time out between
entries while keying the sequence).
•Short SDM jumper (item 4022, see Figure "Service
jumper") on the TV board and apply AC Power. Remove
the short after start-up.
Caution: Entering SDM by shorting "Service" jumpers will
override the software protections. Do this only for a short
period. When doing this, the service-technician must
know exactly what he is doing, as it could damage the
television set.
SDM
I2CUART
E_14710_062.eps
260804
5.2.1Service Default Mode (SDM)
Purpose
•To create a predefined setting for measurements.
•To override software protections.
•To start the blinking LED procedure.
•To inspect the error buffer.
•To check the life timer.
Specifications
Table 5-1 SDM default settings
RegionFreq. (MHz)Default system
Europe, AP-PAL/Multi475.25PAL B/G
NAFTA, AP-NTSC, LATAM61.25 (ch. 3) NTSC M
•All picture settings at 50% (brightness, colour contrast,
hue).
•Bass, treble and balance at 50%; volume at 25%.
•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-favourite presets / channels.
– Auto-storage of personal presets.
– Auto user menu time-out.
– Auto Volume Levelling (AVL).
Figure 5-1 SDM Service jumper
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 Alignment Mode.
When you press the MENU button on the remote control, the
set will switch on the normal user menu in the SDM mode.
How to exit
Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter.
EN 10LC4.6E AA5.
Service Modes, Error Codes, and Fault Finding
If you turn the television set off by removing the mains (i.e.,
unplugging the television) or by using the POWER button on
the TV set, the television set will remain in SDM when mains is
re-applied, 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.
•Software alignments (Tuner, White Tone, Geometry, and
Audio).
•NVM Editor.
•ComPair Mode switching.
How to enter
Press the following key sequence on the remote control
transmitter: “062596" directly followed by the OSD/STATUS/
INFO button (do not allow the OSD display to time out between
entries while keying the sequence).
After entering 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.
00022 LC42EP1 2.03/S42GV1 2.02 SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. Tuner
. White Tone
. Audio
. NVM Editor
. SC NVM Editor
. Test Pattern
. ComPair Mode On
E_14710_007.eps
240604
– YY= the sub software version number (updated with a
minor change that is compatible with previous
versions).
– EEEEEE= the Scaler SW cluster
– F= the Scaler SW version no.
– GG= the sub-version no.
3. SAM. Indication of the Service Alignment Mode.
4. Error Buffer (ERR). Shows all errors detected since the
last time the buffer was erased. Five errors possible.
5. Option Bytes (OP). Shows all option settings. See
“Options” in the Alignments section for a detailed
description. Seven codes are available.
6. Clear. Erases 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.
7. Options. Used to set the option bits. See “Options” in the
Alignments section for a detailed description.
8. Tuner. Used to align the tuner. See “Tuner” in the
Alignments section for a detailed description.
9. White Tone. Used to align the white tone. See “White
Tone” in the Alignments section for a detailed description.
10. Audio. No audio alignment is necessary for this television
set.
11. NVM Editor. Can be used to change the NVM data in the
television set.
12. SC NVM Editor. Can be used to edit Scaler NVM.
13. Test Pattern. For future use.
14. ComPaIr. Can be used to switch 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 CURSOR 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 CURSOR UP/DOWN keys 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.
•In SAM, when you press the MENU button twice, the set
will switch to the normal user menus (with the SAM mode
still active in the background). To return to the SAM menu
press the MENU button again.
•When you press the MENU key in while in a submenu, you
will return to the previous menu.
Figure 5-3 SAM menu (example from LC4.2E)
Menu explanation
1. LLLLL. This represents the run timer. The run timer counts
normal operation hours (including “on/off” switching), but
does not count stand-by hours.
2. AAAABCD-X.YY/EEEEEE_F.GG. This is the software
identification of the Main/Scaler microprocessor:
– A= the chassis name.
– B= the region: E= Europe, A= Asia Pacific, U= NAFTA,
L= LATAM.
– C= the software diversity:
•Europe: T= 1 pg TXT, F= Full TXT, V= Voice ctrl.
•LATAM and NAFTA: N= Stereo non-dBx,
S= Stereo dBx.
– D= the language cluster number.
– X= the Main software version number (updated with a
major change that is incompatible with previous
versions).
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 on the television set.
5.2.3Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the TV’s operation settings. The call centre can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps the call centre 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.
Service Modes, Error Codes, and Fault Finding
EN 11LC4.6E AA5.
How to enter
To enter CSM, press the following key sequence on the remote
control transmitter: “123654” (do not allow the OSD display to
time out between entries while keying the sequence).
Upon entering the Customer Service Mode, the following
screen will appear:
1 00022 LC42EP1 2.03/S42GV1 2.02 CSM
2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000
4
5
6 NOT TUNED
7 PAL
8 STEREO
9 CO 50 CL 50 BR 50
0 AVL Off
E_14710_008.eps
240604
Figure 5-4 CSM menu (example from LC4.2E)
Menu explanation
1. Indication of the decimal value of the operation hours
counter, Main/Scaler software version (see "Service
Alignment Mode" for an explanation), and 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 (option).
5. Reserved.
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 Colour 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 (or EXIT/INFO/[i+]), 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 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 CURSOR UP/DOWN
keys to highlight the PICTURE sub menu.
4. Press the CURSOR LEFT/RIGHT keys to enter the
PICTURE sub menu.
5. Use the CURSOR UP/DOWN keys (if necessary) to select
BRIGHTNESS.
6. Press the CURSOR LEFT/RIGHT keys to increase or
decrease the BRIGHTNESS value.
7. Use the CURSOR UP/DOWN keys to select PICTURE.
8. Press the CURSOR 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
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 CURSOR UP/DOWN
keys to highlight the PICTURE sub menu.
4. Press the CURSOR LEFT/RIGHT keys to enter the
PICTURE sub menu.
5. Use the CURSOR UP/DOWN keys to select
SHARPNESS.
6. Press the CURSOR LEFT key to decrease the
SHARPNESS 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.
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 CURSOR UP/DOWN
keys to highlight the PICTURE sub menu.
4. Press the CURSOR LEFT/RIGHT keys to enter the
PICTURE sub menu.
5. Use the CURSOR UP/DOWN keys to select COLOUR.
6. Press the CURSOR RIGHT key to increase the COLOUR
value.
EN 12LC4.6E AA5.
Service Modes, Error Codes, and Fault Finding
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 CURSOR UP/DOWN
keys to highlight the PICTURE sub menu.
4. Press the CURSOR LEFT/RIGHT keys to enter the
PICTURE sub menu.
5. Use the CURSOR UP/DOWN keys to select PICTURE.
6. Press the CURSOR 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 (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:
•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 I
is therefore capable of accurately indicating problem areas.
You do not have to know anything about I
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 I
access the I
send and receive I
2
C/UART bus of the television. ComPair can
2
C/UART commands to the micro
controller of the television. In this way, it is possible for
2
C/UART level. ComPair can
2
C level) and
2
C commands
ComPair to communicate (read and write) to devices on
2
the I
C/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.
5.4.3How To Connect
This is described in the chassis fault finding database in
ComPair.
Note: If you encounter any problems, contact your local
support desk.
Service Modes, Error Codes, and Fault Finding
EN 13LC4.6E AA5.
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.
5.5.2How To Clear The Error Buffer
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 OSD
display to time out between entries while keying the
sequence).
– Make sure the menu item CLEAR is highlighted. Use
the CURSOR UP/DOWN buttons, if necessary.
– Press the CURSOR RIGHT button to clear the error
buffer. The text on the right side of the “CLEAR” line will
change from “CLEAR?” to “CLEARED”
•If an error does not re-occur within 50 hours it is deleted
from the error buffer.
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.
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).
Table 5-2 Error code overview
Error DeviceError description Check itemDiagram
0Not applicable ---
1Not applicable ---
2Not applicable ---
3Not applicable ---
4GM1501
Scaler
Flash-ROM
5Not applicable +5V pr otection7930A6
6I2C busGeneral I2C error7011, 3088, 3096A2
7Not applicable ---
8M24C32 I
9M24C16 I2C error while
10TunerI2C error while
11Not applicable ---
12Not applicable ---
13Not applicable ---
14K4D263238M Read-write error
15TDA9178T/N1 I2C error while
2
C error while
I
communicating with
the Genesis Scaler
and/or Flash-ROM
is faulty/empty
2
C error while
communicating with
the Scaler EEPROM
communicating with
the EEPROM
communicating with
the PLL tuner
with the Scaler
SDRAM
communicating with
Histogram
7401
7530
7531A11
7099A2
1302, 3302, 3303, 3327 A1
7501A10
7560A3
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:
•The LED blinks with as many pulses as the error code
number, followed by a time period of 1.5 seconds, in which
the LED is “off”.
•Then this sequence starts is repeated.
Any RC5 command terminates this sequence.
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.
A7
A11
EN 14LC4.6E AA5.
Service Modes, Error Codes, and Fault Finding
5.7Fault 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.
5.7.1NVM 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. With this option, single bytes can be changed.
Table 5-3 NVM editor overview
HexDecDescription
.ADR0x000A10Existing value
.VAL0x00000New value
.StoreStore?
5.7.2Load default NVM values
In case a blank NVM is placed or when the NVM content is
corrupted, default values can be downloaded into the NVM.
After the default values are downloaded it will be possible to
start up and to start aligning the TV set. This is no longer
initiated automatically; to initiate the download the following
action has to be performed:
1. Switch “off” the TV set via the AC Power switch.
2. Short circuit the SDM jumpers (keep short-circuited).
3. Press P+ or Ch+ on the local keyboard (and keep it
pressed).
4. Switch on the TV set via the AC Power switch.
5. When the set has started, the P+/Ch+ button can be
released and the short circuit of the SDM jumpers can be
removed.
6. The red LED will be on continuously to indicate that the
download is initiated (normally when SDM is activated the
red LED will start with the Blinking LED sequence).
7. Wait +/- 30 s (time needed to download default values to
the NVM).
No picture display
1. Check the RGB signal.
2. If it is present, check 3-IC7016 (NE555).
3. If it has output, the problem is in SCALER part.
4. Otherwise, check H-out on pin 2 of NE555. If the input
signal of pin 2 is present, but no output, the IC is defect.
Note:
•If the H-out (pin 67) doesn’t have signal or the level is low,
check the output of NE555 (pin 3) during start up.
•If the H-out (pin 67) has a signal (or has a signal for a very
short time), change IC7016 (NE555).
No TV but PC is present
1. Check if HSYNC and VSYNC are present at pin 3 of 7017
and 7015.
2. If they are present, check RGB output.
3. If there is no RGB output, the IC TDA120xx can be defect.
5.7.5Power Supply
This power supply contains two fuses. One is near the AC
Power (or mains) inlet connector 1308 and the other is near
connector 1307.
1. Check with power supply in “off” state by means of ohmic
measurement.
2. Fuse 1400 may open in case of severe lightning strikes
and/or failures in the power supply.
3. Fuses 1401 may open in case of a problem with the Standby Supply. Replacement of the fuse is needed, but not
before the cause of the overload conditions is resolved.
5.7.3Tuner and IF
No Picture in RF mode
1. Check whether picture is present in AV. If not, go to Video
processing troubleshooting section.
2. If present, check that the Option settings are correct.
3. Check that all supply voltages are present.
4. Check if I
5. Manually store a known channel and check if there is IF
output at Tuner pin 11.
6. Feed in 105 dBuV at Tuner pin 11 and check whether there
is RGB output from Video Processing IC. If yes, Tuner may
be defect. Replace Tuner.
Required system is not selected correctly
1. Check whether a Service jumper (#4022, 0805 size) is
present. If yes, remove it.
5.7.4Video Processing
No power
1. Check +12 V and 3V3 at position 1910.
2. If no supply, check the connector 1910.
3. If it is correct, check the power supply board.
Power supply is correct but no green LED
1. Check if connectors 1005 and 1601 are properly inserted.
2. If yes, check if the 3V3 is present.
2
C lines are working correctly (3.3V).
Block Diagrams, Testpoint Overviews, and Waveforms
6.Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
15LC4.6E AA6.
WIRING DIAGRAM
Lspeak
posilock
Right
Speaker
E
1304
_4_VH
1309_
3_VH
Top Control Panel
LVDS CONNECTOR
8350
1M03_10_KR
8346
1M52_9_KR
MF Supply
2_VH
3_HR
4_VH
1306
_
1305
_
AS
1307
_
1306
_2_VH
1307
4_VH
_
1305
3_HR
_
8302
8304
8309
1M46
1M03
_11_KR
_10_KR
8736
8303
1M02_7_HR
1735
4_KR
_
8306
8307
8305
1304
_4_VH
1309
_3_VH
1M02_7_HR
Lspeak
posilock
Left
Speaker
0345_
3_KR
8735
Standby Supply / Audio
SA
1736
3_K
R
_
1735
3_K
R
_
1739
1M02
_
9
_K
_7_
R
KR
1317
LPL
1313
8317
_16_IDE
1312
_16_IDE
RES
8313
RES
8312
_11_KR
1315
_10_KR
AUO
AUO
8315
8352
1M46_11_KR1G51_31_FI
(1251)(1450)(1403)(1752)(1702)
8345
J
LED/SWITCH
_10_KR
0320
LC04 SSB
A
8336
LPL
8320
Side I/O
D
0936_11_HR
1408_
3_KR
1301_
3_KR
(1336)
(1402)
(1M20)
1M36
_12_KR
3_KR
_
1320
_10_KR
1M01
Mains
outlet
8308
1308
_2_VH
E_14710_032.eps
240105
Block Diagrams, Testpoint Overviews, and Waveforms