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.
Front Interface Panel (FL13)(J) 5556
Front Interface Panel (PV2)(J) 5557
Deflection Controller - ATSC(K1) 5860
RGB Buffer- ATSC(K2) 5960
8. Alignments61
9. Circuit Descriptions, List of Abbreviations, and IC
Data Sheets66
Abbreviation List68
IC Data Sheets70
10. Spare Parts List71
11. Revision List72
Published by BB 0563 TV ServicePrinted in the NetherlandsSubject to modificationEN 3122 785 15060
EN 2L05.1U 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: 26”, 16:9
: 27”, 4:3
: 30”, 16:9
: 32”, 4:3
Tuning system: PLL
Color systems: NTSC
Sound systems: BTSC
Channel selections: 181, full cable
IF picture carrier: 45.75 MHz
Aerial input: 75 ohm, F-type
A/V Connections: NTSC M (3.58 - 4.5)
1.2Connections
Note: The following connector color abbreviations are used
Figure 1-1 Top control and Front / Side connections
Hosiden: SVHS - In
1-GND Ground H
2-GND Ground H
3-Y 1 Vpp / 75 ohm j
4-C 0.3 Vpp / 75 ohm j
Audio / Video In
Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.2 V_rms / 10 kohm jq
Rd - Audio - R 0.2 V_rms / 10 kohm jq
Bk - Headphone 8 - 600 Ohm / 4 mW ot
1.2.2Rear Connections
75 Ohm
SPDIF
L
AUDIO
R
Y
Pb
Pr
110205
1
182
19
HDMI
Y
Pb
ComPair
Pr
COMPONENT VIDEO INPUT
Figure 1-2 Rear connections
AV1
V
L
R
AV2
IN
S-VIDEO
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IN
V
L
R
Technical Specifications, Connections, and Chassis Overview
EN 3L05.1U AA1.
Aerial In
- F-type Coax, 75 ohm D
Monitor Out
Ye - Video (CVBS) 1 V_pp / 75 ohm kq
Wh - Audio - L 0.5 V_rms / 1 kohm kq
Rd - Audio - R 0.5 V_rms / 1 kohm kq
YUV In
Bu - U 0.7 V_pp / 75 ohm jq
Rd - V 0.7 V_pp / 75 ohm jq
Gn - Y 0.7 V_pp / 75 ohm jq
AV1 In
Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.5 V_rms / 10 kohm jq
Rd - Audio - R 0.5 V_rms / 10 kohm jq
AV2 In
Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.5 V_rms / 10 kohm jq
1.3Chassis Overview
B1
CRT SOCKET
RGB AMP
B2
ROT &
B3
SCAVEM
SIDE AV PANEL +
D
HEADPHONE
CRT PANEL
Rd - Audio - R 0.5 V_rms / 10 kohm jq
AV2 In (SVHS)
1-Ground GND H
2-Ground GND H
3-Y 1 V_pp / 75 ohm jq
4-C 0.3 V_pp / 75 ohm jq
TOP CONTROL PANEL
FRONT INTERFACE PANEL
MULTI BOARD
E/P
J
K1
K2
ATSC
DEFLECTION
CONTROLLER
RGB
BUFFER
ATSC PANEL
Figure 1-3 PWB location
MONO
CARRIER
POWER SUPPLY
DEFLECTION
TUNER IF
HERCULES
FEATURES & CONNECTIVITIES
AUDIO AMPLIFIER
REAR I/O CINCH
FRONT CONTROL
AUXILIARY POWER SUPPLY
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A1
A2
A3
A4
A5
A7
A8
A9
A10
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EN 4L05.1U 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 that during a repair:
•Connect the set to the Mains (AC Power) via an isolation
transformer (> 800 VA).
•Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
•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 is flowing. 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 which
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 avoid 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 the danger of a
circuit 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
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Safety Instructions, Warnings, and Notes
EN 5L05.1U AA2.
•Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.
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.
-9
), or pico-farads (p= x10
-12
2.4.4Lead Free Solder
Philips CE is producing lead-free sets (PBF) from 1.1.2005
onwards.
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
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.
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.
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 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
EN 6L05.1U AA3.
Directions for Use
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".
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.
4.Mechanical Instructions
Mechanical Instructions
EN 7L05.1U AA4.
Index of this chapter:
4.1 Assy/Panel Removal
4.2 Set Re-assembly
Notes:
•Only the ATSC module and deflection controller panel
disassembly are described. For other disassembly
instructions, see the Service manual for
L05U AA.
•Figures below can deviate slightly from the actual situation,
due to different set executions.
4.1Assy/Panel Removal
4.1.1ATSC Assy
1. Release the fixation clamp and pull the bracket backwards.
4.1.3ATSC Panel Removal
1
1
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Figure 4-2 ATSC Module Top Shield Removal
Figure 4-1 ATSC bracket
4.1.2ATSC Module Removal
1. Disconnect all cables that lead to the module.
2. Unlock the clip at the left side of the bracket and pull out the
ATSC module.
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2
Figure 4-3 ATSC Panel Removal
1. Unscrew the shield mounting screws [1] and lift the top
shield.
2. Unscrew the ATSC panel mounting screws [2] and take out
the ATSC panel.
4.1.4Deflection Control Panel
1. Remove all cables.
2. Pull the panel upwards out of the connectors.
4.2Set 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
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EN 8L05.1U 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: NTSC M.
•All picture settings at 50% (brightness, color contrast, hue).
•Bass, treble and balance at 50 %; volume at 25 %.
Figure 5-1 SDM menu
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Service Modes, Error Codes, and Fault Finding
EN 9L05.1U 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 L05U 0.12 SAM
ERR 0 0 0 0 0
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,
– 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. SAM. Indication of the Service Alignment Mode.
4. Error Buffer. Shows all errors detected since the last time
the buffer was erased. Five errors possible.
5. Option Bytes. Used to set the option bytes. See “Options”
in the Alignments section for a detailed description. Seven
codes are possible.
6. 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.
7. Options. Used to set the option bits. See “Options” in the
Alignments section for a detailed description.
8. AKB. Used to disable (Off) or enable (On) the “black
current loop” (AKB= Auto Kine Bias).
9. Tuner. Used to align the tuner. See “Tuner” in the
Alignments section for a detailed description.
10. White Tone. Used to align the white tone. See “White
Tone” in the Alignments section for a detailed description.
11. Geometry. Used to align the geometry settings of the
television. See “Geometry” in the Alignments section for a
detailed description.
12. Audio. No audio alignment is necessary for this television
set.
13. NVM Editor. Can be used to change the NVM data in the
television set. See table “NVM data” further on.
14. 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.
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. AKB On
. Tuner
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on
F_15060_045.eps
Figure 5-2 SAM menu
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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
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.
EN 10L05.1U AA5.
Service Modes, Error Codes, and Fault Finding
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:
•Press the MENU, STATUS/EXIT, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
5.2.4Digital Customer Service Mode (DCSM)
Purpose
The Digital Customer Service Mode shows error codes and
information on the TV’s digital operation settings. The call
center can instruct the customer (by telephone) to enter DCSM
in order to identify the digital status of the set. This helps the
call center to diagnose problems and failures with the ATSC
part before making a service call.
The DCSM is a read-only mode; therefore, modifications are
not possible in this mode, with exception of the digital error
buffer. This error buffer can be cleared in DCSM.
How to enter
To enter DCSM, the set has to be in digital mode. When the set
is in digital mode, 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 Digital Customer Service Mode, the
following screen will appear:
1 00028 L05U 0.12 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
F_15060_046.eps
180305
Figure 5-3 CSM menu
Menu explanation
1. Indication of the decimal value of the operation hours
counter, Software identification of the main 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.
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:
F_15060_047.eps
180305
Figure 5-4 DCSM menu
Menu explanation
1. H/W version: Indication of the hardware version of the
ATSC module.
2. S/W version:
– D/D: The DST driver software version.
– HW: The DST middleware version.
– PODware: The CableCARD software version.
– ATI lib: The ATI software version.
– FE: Front End software version.
– Kernel: Linux kernel software version.
3. CableCARD (POD): CableCard present or not.
4. Channel Information:
– Input: Displays the input type.
– Major.Minor: Displays the major and minor channel
numbers.
– RF: Displays the physical channel number.
– UID: Displays the unique ID.
5. Video Information:
– Source Format: Displays the format of the received
signal.
6. Audio Information:
– Dolby: Displays information on the received audio
signal.
7. Signal Status (FDC): Not used in this version.
8. Signal Status (FAT): Displays the Forward Application
status.
– Status: Displays if the signal is locked.
– Type: Displays the type of the received signal.
– SQI: Signal Quality Index (0..100).
– Equai_SNR: Equaliser Signal to Noise Ratio.
Service Modes, Error Codes, and Fault Finding
EN 11L05.1U AA5.
– Tre_SNR: Trellis Signal to Noise Ratio.
– RS Error Rate: Reed-Solomon error rate.
9. Error Status: Displays the error status for each device.
How to clear the error buffer
To clear the error buffer, press the LEFT key on the remote
control.
How to exit
To exit DCSM, press the RIGHT key on the remote control.
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
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.
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 (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 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.
EN 12L05.1U AA5.
Service Modes, Error Codes, and Fault Finding
•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.
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.
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.
Service Modes, Error Codes, and Fault Finding
EN 13L05.1U AA5.
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 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”
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
19TDA1200xI2C error while communicating with sound decoder in Hercules IC7200A4
20TDA1200xI2C error while communicating with video cosmic in Hercules IC7200A4
33TA1360AFGI2C error while communicating with the ATSC PQ-ATSC module
34TA1317AFGI2C error while communicating with the ATSC deflection controller-ATSC module
35SAA5565I2C error while communicating with the ATSC uProcessor-ATSC module
•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.
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
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).
•The Digital Customer Service Mode (DCSM).
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.
EN 14L05.1U AA5.
Service Modes, Error Codes, and Fault Finding
Table 5-3 NVM default values for NAFTA-region5.8.2Power Supply
Default values
(hex)
Item
Address (dec)
26PW21718
30PW21709
27PT21714
NVM Table Version1915 15 15 15
Option Table Version2070 70 70 70
EW (EW Width)563C 66 3D 3C
PW (EW Parabola Width)570E 14 17 28
HS (Horizontal Shift)5858 56 5A 5E
HP (Horizontal Parallelogram)5908 08 08 07
HB (Horizontal Bow)6008 0A 09 05
UCP (EW Upper Corner Parabola)6110 16 10 10
LCP (EW Lower Corner Parabola)620F 07 11 11
TC (EW Trapezium)6340 54 44 43
VS (Vertical Slope)6400 00 00 00
VA (Vertical Amplitude)6540 2F 33 3D
VSC (S-Correction)662C 23 32 35
VSH (Vertical Shift)6740 41 3F 42
VX (Vertical Zoom)6800 00 00 0F
VSL (Vertical Scroll)6979 74 78 72
VL (Vertical Linearity)7010 12 11 12
EWS (EW S Correction)7110 00 10 10
EWC (EW Corner)7210 0C 12 16
AGC (AGC Takeover)1631D 1D 1D 1D
OIF (IF-PLL Offset)16426 26 26 26
IFAGC, SBO16620 20 20 20
Hercules Default SOC & Brightness2111F 1F 1F 1F
Hercules Default Color21210 10 10 10
Hercules Default Contrast2131F 1F 1F 1F
Hercules Default Sharpness2140D 0D 0D 0D
Hercules Default Hue21520 20 20 20
Hercules Default Base-Band Tint21620 20 20 20
Hercules Default White Point Red21720 20 20 20
Hercules Default White Point Green21820 20 20 20
Hercules Default White Point Blue21920 20 20 20
Hercules Default CL & PWL220DF DF DF DF
Hercules Default RF & AV Y Delay22177 77 77 77
Hercules Default BLOR22220 20 20 20
Hercules Default BLOG22320 20 20 20
Last Brightness (VID PP others)2641E 1E 1E 1E
Last Color (VID PP others)26544 44 44 44
Last Contrast (VID PP others)26664 64 64 64
Last Sharpness (VID PP others)26744 44 44 44
Last Hue (VID PP others)26832 32 32 32
Last Color Temperature
(VID PP others)
269 01010101
White-D Cool Red356FA FA FA FA
White-D Cool Blue35712 12 12 12
White-D Normal Red35852 52 52 52
White-D Normal Blue3594C 4C 4C 4C
White-D Warm Red3600A 0A 0A 0A
White-D Warm Blue361E8 E8 E8 E8
Set Not Working
Check Power
Supply Mains
32PT21705
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
Figure 5-6 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
Yes
Set able to
Start
Yes
End
No
No
Check Line
Transistor 7405
Trident
F_15050_003.eps
Figure 5-7 Fault finding tree “Set does not start up”
Yes
030205
Service Modes, Error Codes, and Fault Finding
EN 15L05.1U AA5.
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
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
Yes
Check Horizontal
Deflection
Circuitry
CB
Ok
Not Ok
Picture
appears?
Picture not appearing
Check deflection
circuit
Picture not appearing
Ok
Not Ok
Replace transistor
E_14480_059.eps
170204
Figure 5-8 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
Ok
Picture
appears?
Ok
Figure 5-10 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 Hercules.
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 HERCULES 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
Check Vertical
Deflection Circuit
E_14480_060.eps
170204
Figure 5-9 Fault finding tree “One thin horizontal line”
EN 16L05.1U AA5.
Service Modes, Error Codes, and Fault Finding
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
No
No Picture,
No Sound,
Raster Ok
Check AGC
Voltage, pin 1
of tuner
AGC voltage
changes with
different signal
strength
Check
Supply
V
T
Section
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
No
No
Refer to fig.
"Power Supply:
Set not working"
Replace SAW
filter
No
Check AGC
circuit section
5V
Yes
Check Tuner
pin 4 & 5
I2C Bus
Ok
Yes
Replace Tuner
Check Power
No
No
Supply
Check other
functional area
E_14480_062.eps
Figure 5-11 Fault finding tree “No picture, no sound”
170204
Check other
functional area
E_14480_063.eps
170204
Figure 5-12 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
Check Tuner
Supply Voltage
Check I2C at pin
4 & 5 and tuner
Ok
Check other
functional area
Enter SDM and change
to the appropriate byte
Check Power
No
Supply
No
33V
Yes
Not Ok
Check I2C
circuit
Not Ok
I2C
Not Ok
E_14480_064.eps
Replace
Tuner
Not Ok
Tuner
170204
Figure 5-13 Fault finding tree “Unable to perform tuning”
Service Modes, Error Codes, and Fault Finding
EN 17L05.1U AA5.
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_dc and +1.8 V_dc are present.
2. Check that crystal oscillator is working.
3. Check that Power Good signal is at “high” logic, normal
operation.
4. Check that HERCULES is not in standby mode. Pin 15 of
HERCULES 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 HERCULES is faulty, replace with
new HERCULES.
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.
For sets with Scavem, and Scavem does not work, follow steps
below:
1. Check Scavem coil connector (position is 1361) if
connected; if not, connect it.
2. If connected, check NVM “bit storage” byte 1 bit 7; if it is not
“1”, set it to “1”.
3. If it is “1”, then check the data of the NVM addresses as in
the next table. If the data is not correct, then set these
addresses to diagram values.
4. If it still not works, track Scavem output from pin64 of
HERCULES to CRT panel.
Table 5-4 NVM default values for Scavem
Description
SPR, WS
VMA, SVM
NVM_SOC_SMD
Address (dec) Address (hex) Value (hex)
1408C00
1418D32
1428E03
5.8.8Audio Processing
No Sound
Picture Ok,
No Sound
Tuner IF OkCheck Tuner/IFNot Ok
Ok
Check AUDOUTLSL &
AUDOUTLSR pin at
Hercules
Ok
Check Audio
Amplifier
Not Ok
Not Ok
Check Hercules IC
Check Audio
Power Supply
Ok
Check Audio
Amplifier Circuit
and loud speaker
Ok
Check NVM
Not Ok
Figure 5-14 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 Hercules output, Hercules is faulty.
No AV audio.
1. Check troubleshooting methods in section “Source
Selection”.
2. Check the output of the Hercules 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 Hercules output, Hercules is faulty.
Note: If there is audio signal at Hercules 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 Hercules 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.
Check Power
Supply
Replace Audio
Amplifier
E_14480_065.eps
170204
EN 18L05.1U AA5.
5.8.10 ATSC
No digitalpicture & Sound
No picture,
No sound,
Raster OK.
Check
AGC Voltage,
Pin 1 of Tuner
AGC voltage
change with
difference
signal
strength
No
Check
AGC circuit section
1 3_3V 3.3V
2 3_3V 3.3V
3 GND 0V
4 GND 0V
5 9V 9VA
Power Supply
ATSC (P1533)
Power Supply
ATSC (P1534)
6 GND 0V
7 POWER_DOWN GND
8 STBY_EN GND
9 GND 0V
10 6V 6VA
11 6V 6VA
12 GND 0V
1 3_3V 3.3V
2 3_3V 3.3V
3 3_3V 3.3V
4 GND 0V
5 GND 0V
6 GND 0V
7 6V 6VA
8 GND 0V
YES
Service Modes, Error Codes, and Fault Finding
Analog video
(P1254)
Check
tuning voltage,
Pin 9 of Tuner
Digital Audio
>30V
&
< 35V
Check
Supply voltage,
Pin 7 of Tuner
5V
YES
Check Tuner,
Pin 4 & 5
2
C Bus
I
OK
Check YpbPr
O/P
(ATSC module)
OK
YES
Check (K)
Deflection
controller
Panel
No
No
Check
V
T
Supply section
Check
Power Supply
No
(P1219)
Analog Audio
(P1208)
1206 control
(P1206)
Check ATSC
module
connector
OK
YES
Check supply
voltage
6V & 3V3
OK
YES
Check
ATSC (P1206)
UART Signal
OK
YES
Replace ATSC
module
1 GND 0V
2 RED_IN 1.4Vpp(100IRE)
3 GND 0V
4 GREEN_IN 1.4Vpp(100IRE)
5 GND 0V
6 BLUE_IN 1.4Vpp(100IRE)
7 HS_IN 5.0Vpp
8 VS_IN 5.0Vpp
1 R_OUT 1.15Vrms
2 GND 0V
3 L_OUT 1.15Vrms
4 GND 0V
1 R_IN 2Vrms
2 L_IN 2Vrms
3 GND 0V
1 Tx 3.3V
2 GND 0V
3 Rx 3.3V
4 POD_DET# 3.3V
5 EXT_PWRON 3.3V
6 RESET# 3.3V
No
No
No
Check
Wiring of
ATSC module
Check
ATSC (P1533)
& (P1534)
Power supply
Check
Hercules UART
O/P
F_15060_048.eps
180305
Figure 5-15 Fault finding tree “ATSC part”
Service Modes, Error Codes, and Fault Finding
5.8.11 Deflection Controller
Check Deflection Controller Panel (ATSC set only)
Check 10V supply
from Main Chassis
EN 19L05.1U AA5.
ok
Check RGB output
ok
Check CRT feedback
on 1404 pin 5
ok
Check
Power Supply
Check CRT/RGB
amplifier
CRT amp
(P1404)
1 RED_OUT 2.6Vpp(100IRE)
2 GREEN_OUT 2.6Vpp(100IRE)
3 BLUE_OUT 2.6Vpp(100IRE)
4 GND 0V
5 BC_INFO 0V5
Check signal at
connector 1251
ok
Replace Deflection
Panel
Check Deflection
Circuit
F_15060_049.eps
180305
Figure 5-16 Fault finding tree “Deflection Controller”
EN 20L05.1U AA5.
Personal Notes:
Service Modes, Error Codes, and Fault Finding
E_06532_012.eps
131004
Block Diagrams, Testpoint Overviews, and Waveforms
6.Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
RIGHT
SPEAKER
RED
BLACK
E
(PV2)
TOP CONTROL PANEL
1010 (PV2)
0345 (FL13)
3P
(PV2)
(FL13)
P
(FL13)
CRT PANEL
B
1361
3P
21L05.1U AA6.
DEGAUSSING COIL
BLUE
CRT
16:9
ROTATION
CRT PANEL
B
FRAME
COIL
GREY
ORANGE
BROWN
SCAVEM
COIL
EHT
CRT
BLACK
RED
LEFT
SPEAKER
1335
1352
CRT
SOCKET
1351
1340
5P
5P
1336
1381
AQUADAG
3P
6P
P1255
ATSC
CVBS (YELLOW)
LEFT (WHITE)
RIGHT (RED)
ATSC PANEL
HEADPHONE
(FL13)(PV2)
D
SIDE
A/V PANEL +
HEADPHONE
8P
P1534
6P
P1206
8P
P1254
P14
TUNER
1P
12P
P1533
4P
P1219
P1208
3P
1281
1252
1280
1254
1278
3P
7P
3P
5P
4P
Ferrite core
1405
K
5P
1404
(FL13)
6P
3P
1403
DEFLECTION
CONTROLLER
1401
1400
8P
3P
1251
1250
12P10P
Ferrite core
1280
1257
3P
5P
1206
1207
1208
7P
1693
6P
1535
1533
1534
8P
12P
3P
1682
6P
3P
3P
1251
1250
10P
12P
To P14
AT SC
1504
2P
1219
4P
A
MONO
CARRIER
1401
7P
2P
1451
LOT
1505
1404
2P
2P
FRONT INTERFACE
J
Warning: Some models have tact switch.
MAINS
CORD
1693
6P
MAINS
SWITCH
To1546
A1
1005
3P
ComPair
CONNECTOR
TUNER
F_15060_035.eps
210305
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Supply and Deflection
SUPPLY AND DEFLECTION
SUPPLY
FRONT INTERFACE
J
1211
1
2
1231
MAINS
SWITCH
(not USA)
1212
1
2
22L05.1U AA6.
LINEARITY & PANORAMA
TO 1221
A5
CONNECTIONS
G
ONLY FOR:
28"WSRF LA/NA
32" WSRF LA/NA
28" WS-SF LA
1404
4
1
1462
1
2
3
+9V
I2SD/1
7460
ACTIVATING
CIRCUIT
2466
LINEARITY AND
PANORAMA
CORRECTION
2474
2475
7462
7463
2464
2467
1463
1461
4
1
HOR.
DEFL.
COIL
POWER SUPPLY
A1
Degaussing
1505
or
A10
1500
T4E
I511
HOT GROUNDCOLD GROUND
AUXILIARY POWER SUPPLY
2511
1504
1
I513
3513
3514
11
I519
9
7
7510
SUPPLY
CONTROL
6
6500
AC
3522
3517
3518
3523
F508
2505
DC
SUPPLY
7512
G
3516
6511
3519
VDC
1532
3536
14
7525
11
9
7
HOT GROUND COLD GROUND
MAIN
6
3
VDC
5512
9
8
VCC
7
8
9
10
12
1
7516
TCET1103
2
4
5
3
2
4
3
B
6545
6552
6544
6546
6539
I516
D
S
7514
5504
5
4
2
1
3
4
Coil
7511
TEA1506T
2
Vcc
CONTROL
6
CTRL
2
5500 :
5502
DRAIN
IC
14
DRIVER
SENSE
DEMAG
VCC
2
5524
3542
1503
24
1
17
18
13
14
10
11,12
1
7513
TCET1103
2
7509
5527
7542
REFERENCE
CIRCUIT
7575
STANDBY
CIRCUIT
7541
ENERGIZING
CIRCUIT
(optional)
5551
6563
5562
6562
5561
3571
6573
5526
7535
7404
7571
REFERENCE
CIRCUIT
7573
STANDBY
CIRCUIT
7561
3545
3544
Stdby_con
V_DG
+3V3
7545
POWER_DOWN
7543
A4
F552
3560
5552
F563
F561
3575
3576
Stdby_Con
I573
+6VA
+6V
+3V3A
+3V
+3V3
A4
1535
1
+12VA
+8VA
+8V
Vbatt
-Vaudio
+Vaudio
+6V
A4
RGB BUFFER - ATSC
K2
1403
TO P1255
K1
1
3
ATS C
PANEL
5
DEFLECTION CONTROLLERS
7402
TA1360AFG
F_Y
68
SIGNAL AND
F_Pb
F_Pr
SYNC PROC.
67
66
VSM_OUT
FBP_IN
H_OUT
77
39
37
F_Pb
7406/7416
F_Y
F_Pr
7404
TA1317AFG
DEFLECTION
PROCESSOR
EWFILTER
V_NF
EHT
VDRIVE
VDC
EW_FD
3429
3410
7
3470
3
5
6
6408
13
7405
14
3434
3470
7403
Vguard
EHTinfo
VDRA
VDRB
EW_DRIVE
VM_MOD
HFB
H_DRV
1251
LINE + FRAME DEFLECTION
A2
+6V
7404
FEATURES &
A5
CONNECTIVITIES
1251
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
LINE
6481
5402
EW_DRIVE
Vguard
EHTinfo
VDRA
VDRB
EW_DRIVE
SVM_ROT
HFB
HD
7405
BU4508DX
OUTPUT
CIRCUIT
EW_DRIVE
HD
LINE
+
E/W
CORR.
Vbatt
3
1
OR
1404
1
2
SVM_ROT
EHTinfo
Filament
3489
3478
Vguard
HOR.
DEFL.
COIL
5450
EHT
FOCUS G2
10
7
12
5
6
8
11
9
Vbatt
7451
TDA8177F
1
FRAME
7
5457
6453
6461
5458
-14V
2477
6467
+14V
TO
CRT
B1
3477
3485
3456
3458
3450
3455
3401
+12V_LOT
VideoSupply
FLYBACK
GENERATOR
THERMAL
PROTECTION
6452
Vbatt
F453
F458
5
F_15060_036.eps
EHTinfo
HFB
Filament
-14V
VideoSupply
+12V_LOT
+14V
VT_SUPPLY
1451
1
3
F459
3471
1401
VER.
DEFL.
COIL
210305
7
6
TO 1351
5
B1
4
CRT
3
2
1
Block Diagrams, Testpoint Overviews, and Waveforms