Copyright 2006 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.
In above table the link is shown between the model number and
the (internal) Philips styling number. In this manual, sometimes
a refernce is made to this styling number. For a mechanical
drawing of the model, please check the quarterly published
Product Survey.
Figure 1-1 Connections overview (27HT7210D/27, see also DFU)
1.2.1Rear Connections
Cinch: S/PDIF - Out
Bk - Coaxial 0.4 - 0.6V
/ 75 ohm kq
PP
Cable/Antenna - In
-- F-type (US) Coax, 75 ohm D
Service Connector (ComPair)
1-SDA-S I
2-SCL-S I
2
C Data (0 - 5 V) jk
2
C Clock (0 - 5 V) j
3-Ground Gnd H
Mini Jack: Ext. Bathroom speaker- Out
- External speaker
stereo jack, pins 1-3
RJ11: Smartplug
TM
1-CLOCK
2-DATA IN
3-+ 5 V
4 - DATA OUT
5 - GND
6 - IR DATA
Monitor Out - Cinch: Video CVBS - Out, Audio - Out
Ye - Video CVBS 1 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
/ 75 ohm kq
PP
/10 kohm kq
RMS
/ 10 kohm kq
RMS
AV1 - Cinch: Video YPbPr - In
Gn - Video Y 1 V
Bu - Video Pb 0.7 V
Rd - Video Pr 0.7 V
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
AV1 - Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V
Wh - Audio L 0.5 V
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
Page 3
Technical Specifications, Connections, and Chassis Overview
EN 3L04.6HU CA1.
Rd - Audio R 0.5 V
/ 10 kohm jq
RMS
AV2 - 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
AV2 - SVHS (Hosiden): Video Y/C - In
1 - Ground Y Gnd H
2 - Ground C Gnd H
1.3Chassis Overview
B1
B2
D
ATSC
CRT
ECO
SCAVEM
SIDE AV PANEL +
HEADPHONE
CRT PANEL
ATSC PANEL
3 - Video Y 1 V
4 - Video C 0.3 V
/ 75 ohm j
PP
P / 75 ohm j
PP
1.2.2Side Connections
Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
Bk - Head phone 32 - 600 ohm / 10 mW ot
MONO
CARRIER
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
TOP CONTROL PANEL (OPTIONAL)
MAINS SWITCH PANEL (OPTIONAL)
FRONT INTERFACE PANEL
(OPTIONAL)
POWER SUPPLY
LINE DEFLECTION
TUNER IF
HERCULES
FEATURES & CONNECTIVITIES
CLASS D AUDIO AMPLIFIER
AUDIO AMPLIFIER
REAR I/O CINCH
FRONT CONTROL
DVD POWER SUPPLY
E
M
J
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
Figure 1-2 PWB location
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EN 4L04.6HU CA2.
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:
•Due to the chassis concept, a very large part of the circuitry
(incl. deflection) is 'hot'. Therefore, connect the set to the
mains via an isolation transformer.
•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, you must return
the set 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 cord for external
damage.
•Check the strain relief of the mains 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 plug
and the secondary side (only for sets that have an isolated
power supply). Do this as follows:
1. Unplug the mains cord and connect a wire between the
two pins of the mains plug.
2. Turn on the main power switch (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 of the set. The reading should be
between 4.5 MΩ and 12 MΩ.
4. Switch the TV 'off' and remove the wire between the
two pins of the mains plug.
•Check the cabinet for defects, to prevent the possibility of
the customer touching any internal parts.
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 Fig. 2-1, to
discharge the picture tube. Use a high voltage probe and a
multi-meter (position V_dc). Discharge 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 potential. Available ESD
protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and ground cable)
4822 310 10671.
– Wristband tester 4822 344 13999.
•Together with the deflection unit and any multi-pole unit,
flat square picture tubes form an integrated unit. The
deflection and the multi-pole units are set optimally at the
factory. We do not recommend adjusting this unit during
repair.
•Be careful during measurements in the high voltage
section and on the picture tube.
•Never replace modules or other components while the unit
is '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
E_06532_007.eps
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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:
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 color 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).
Page 5
Safety Instructions, Warnings, and Notes
EN 5L04.6HU CA2.
•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 standby (F). These values are
indicated by means of the appropriate symbols.
•The picture tube panel has printed spark gaps. Each spark
gap is connected between an electrode of the picture tube
and the Aquadag coating.
•The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
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 expressed in micro-farads (µ= x
10^-6), nano-farads (n= x 10^-9), or pico-farads (p= x 10^-
12).
•Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
•An "asterisk" (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
•The correct component values are listed in the Electrical
Replacement Parts List. Therefore, always check this list
when there is any doubt.
2.4.3Lead-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).
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.
E_06532_024.eps
230205
workshops should be avoided because paste is not easy to
store and to handle.
•Use only adequate solder tools applicable for lead-free
soldering tin. The solder tool must be able:
– To reach a solder-tip temperature of at least 400°C.
– To stabilise the adjusted temperature at the solder-tip.
– To exchange solder-tips for different applications.
•Adjust your solder tool so that a temperature of around
360°C - 380°C is reached and stabilised at the solder joint.
Heating time of the solder-joint should not exceed ~ 4 sec.
Avoid temperatures above 400°C, otherwise wear-out of
tips will increase drastically and flux-fluid will be destroyed.
To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.
•Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully
clear 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.
•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).
2.4.4Alternative BOM identification
In September 2003, Philips CE introduced a change in the way
the serial number (or production number, see Figure 2-2) is
composed. From this date on, the third digit in the serial
number (example: AG2B0335000001) indicates the number of
the alternative BOM (Bill of Materials used for producing the
specific model of TV set). It is possible that the same TV model
on the market is produced with e.g. two different types of
displays, coming from two different O.E.M.s.
By looking at the third digit of the serial number, the service
technician can see if there is more than one type of B.O.M.
used in the production of the TV set he is working with. He can
then consult the At Your Service Web site, where he can type
in the Commercial Type Version Number of the TV set (e.g.
28PW9515/12), after which a screen will appear that gives
information about the number of alternative B.O.M.s used.
If the third digit of the serial number contains the number 1
(example: AG1B033500001), then there is only one B.O.M.
version of the TV set on the market. If the third digit is a 2
(example: AG2B0335000001), then there are two different
B.O.M.s. Information about this is important for ordering
the correct spare parts!
For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26 = 35 different B.O.M.s can
be indicated by the third digit of the serial number.
P
b
Figure 2-3 Lead-free logo
Due to lead-free technology some rules have to be respected
by the workshop during a repair:
•Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required,
please contact the manufacturer of your soldering
equipment. In general, use of solder paste within
2.4.5Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.
•Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.
Page 6
EN 6L04.6HU CA3.
3.Directions for Use
You can download this information from the following websites:
•Figures below can deviate slightly from the actual situation,
due to different set executions.
4.1Set Disassembly
Warning: Be sure to disconnect the AC power from the set
before opening it.
4.1.1Rear Cover
1. Remove all fixation screws of the rear cover (do not forget
the screws that hold the rear connection panel, and the
screws on the small black cover with the text “not to be
removed”).
2. Pull the rear cover backwards to remove it.
4.2Service Position
Before placing the Mono Carrier in its service position, remove
the Front Interface assy/panel (see paragraph “Front Interface
Assy/Panel removal”) and the Side AV assy/panel (see
paragraph “Side AV Assy/Panel removal”).
1. Disconnect the degaussing coil [1].
2. Release the two fixation clamps (at the mid left and mid
right side of the bracket), and remove the bracket from the
bottom tray, by pulling it backwards [2].
3. Turn the chassis tray 90 degrees counter clockwise.
4. Move the panel bracket somewhat to the left and flip it 90
degrees [3], with the components towards the CRT.
5. Turn the panel bracket with the rear I/O toward the CRT.
6. Place the hook of the tray in the fixation hole of the cabinet
bottom [4] and secure it.
4.3Assy/Panel Removal
4.3.1Front Interface Assy/Panel Removal
1
2
3
1
3
E_14480_049.eps
110204
1
2
A
3
4
B
E_14480_048.eps
Figure 4-1 Service position Mono Carrier
110204
Figure 4-2 Front interface assy/panel removal
1. Remove the complete module from the bottom plate, by
pulling the two fixation clamps upward [1], while sliding the
module away from the CRT [2].
Note: these clamps are difficult to access.
2. Release the two fixation clamps [3] at the side of the
bracket, and lift the panel out of the bracket (it hinges at
one side).
4.3.2Side AV Assy/Panel Removal
E_14480_050.eps
170204
Figure 4-3 Side AV assy/panel removal
1. Remove the two fixation screws, and remove the complete
Side AV assembly.
2. Release the two fixation clamps, and lift the panel out of the
bracket.
Page 8
EN 8L04.6HU CA4.
Mechanical Instructions
4.3.3ATSC Module/Panel Removal
3
1
2
Figure 4-4 ATSC bracket
1. Disconnect all cables that lead to the module.
2. Unlock the clip [1] at the left side of the bracket and pull out
the ATSC module [2].
3. Release the fixation clips that hold the panel [3] and take
out the panel (it hinges at the bottom).
4.3.4EPS1B Module/Panel Removal
3
F_15760_009.eps
151105
4.3.5Interface Module/Panel Removal
1
Figure 4-6 Bracket with Interface Module
22
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1221
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Figure 4-5 EPS1B Module
1. Disconnect all cables that lead to the module.
2. Unlock the clip [1] at the lower side of the bracket and pull
out the EPS1B bracket.
3. Release the fixation clips that hold the panel [2] and take
out the panel.
1
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Figure 4-7 Interface Module
1. Loosen the screw [1] that fixes the bracket with the
Interface module [2] to the TV chassis, and reverse the
bracket to get access to the Interface Module (see Figure
“Bracket with Interface Module”).
2. Loosen the screw [1] in the middle of the Interface Module,
release the fixation clips (or shift the Interface Module
aside), and take it out of its bracket (see Figure “Interface
Module”).
3. Disconnect all cables that lead to the Interface Module.
Page 9
4.3.6SP/LS Module/Panel Removal
1
Figure 4-8 SP/LS Module
1. Loosen the screw [1] that fixes the bracket with the
Interface module to the TV chassis, and position the
bracket in such a way that it no longer blocks access to the
SP/LS module (see Figure “Bracket with Interface
Module”).
2. Unlock the connector [1] that fixes the SP/LS module to the
chassis, and take out the SP/LS module (see Figure “SP/
LS Module”).
3. Disconnect all cables that lead to the module.
Mechanical Instructions
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EN 9L04.6HU CA4.
4.4Set Re-assembly
To re-assemble the whole set, do all processes in reverse
order.
Note: before you mount the rear cover, perform the following
checks:
•Check whether the AC power cord is mounted correctly in
its guiding brackets.
•Check whether all cables are replaced in their original
position
Page 10
EN 10L04.6HU CA5.
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 ComPair
5.4 Error Codes
5.5 The Blinking LED Procedure
5.6 Protections
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 “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.
5.2Service Modes
Service Default Alignment Mode (SDAM) offers several
features for the service technician, while the Customer Service
Mode (CSM) is used for communication between the call
center and the customer. For the TV setup main menu, please
refer to the DFU.
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").
•Software version.
•Option settings.
•Error buffer reading and erasing.
•Software alignments.
How to Enter SDAM
To enter SDAM, use one of the following methods:
•Switch the optional RC2573GR remote controll to Setup
mode, and press the following key sequence on the remote
control transmitter: “062596" directly followed by the
M(enu) button (do not allow the display to time out between
entries while keying the sequence).
•Or via ComPair.
•Or Short circuit the SDAM jumper on the mono carrier (see
Chapter 7: Layout Mono Carrier: Top side, item 9252 in cel
C5) and apply AC power. Then press the power button
(remove the short circuit after start-up).
Caution: Entering SDAM by short-circuiting the SDAM jumper
will override the +8V-protection. Do this only for a short period.
When doing this, the service-technician must know exactly
what he is doing, as it could lead to damaging the set.
After entering SDAM, the following screen is visible, with “S” in
the upper right corner of the screen to indicate that the
television is in Service Default Alignment Mode.
00058 L06HU I 0.5D S
ERR 0 0 0 0 0
OP 034 004 161 009 060 117 000
HRM SW H3.03B
. CLEAR CLEARED
. ISP MODE OFF
. OPTIONS
5.2.1Service Default Alignment Mode (SDAM)
Purpose
•To change option settings.
•To create a predefined setting to get the same
measurement results as given in this manual.
•To display / clear the error code buffer when leaving SDAM
with “standby” key on remote control.
•To override SW protections.
•To perform alignments.
•To start the blinking LED procedure.
Specifications
•Tuning frequency:
– 61.25 MHz (channel 3)
•Colour system:
–NTSC
•All picture settings at 50 % (brightness, color contrast,
hue).
•Bass, treble and balance at 50 %; volume at 25 %.
•All service-unfriendly modes (if present) are disabled, like:
– (sleep) timer,
– child/parental lock,
– blue mute,
– hotel/hospitality mode
– auto switch-off (when no IDENT video signal is
received for 15 minutes),
– skip / blank of non-favourite presets / channels,
– auto store of personal presets,
– auto user menu time-out.
•Operation hours counter.
. DEFLECTION
. TUNER
. WHITE TONE
. GEOMETRY
. 60Hz OFFSET
G_16430_008.eps
040506
Figure 5-1 SAM menu (example)
1. LLLL
This is the operation hours counter. It counts the normal
operation hours, not the standby hours.
2. AAAABC-X.Y
This is the software identification of the main micro
controller:
– A = the project name (L04H).
– B = the region: E= Europe, A= Asia Pacific, U= NAFTA,
L= LATAM.
– C = the feature and language
– X = the main software version number.
– Y = the sub software version number.
3. S
Indication of the actual mode. S= SDAM= Service Default
Alignment mode.
4. Error buffer
Five errors possible.
Page 11
Service Modes, Error Codes, and Fault Finding
5. Option bytes
Shows the actual settings of the options; seven codes
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. ISP Mode
Can be used to switch on the television to ISP mode (for
uploading software)
8. Options
To set the Option Bytes. See chapter 8 for a detailed
description.
9. Deflection
To align the Deflection. See chapter 8 for a detailed
description.
10. Tuner
To align the Tuner. See chapter 8 for a detailed description.
11. White Tone
To align the White Tone. See chapter 8 for a detailed
description.
12. Geometry
To align the Geometry. See chapter 8 for a detailed
description.
13. 60Hz offset
To align the horizontal and vertical screen positions and
vertical amplitude at 60 Hz. See chapter 8 for a detailed
description.
How to Navigate
Use one of the following methods:
•In SDAM, select menu items with the CURSOR UP/DOWN
key on the remote control transmitter. The selected item
will be highlighted. When not all menu items fit on the
screen, move the CURSOR UP/DOWN key to display the
next / previous menu items.
•With the CURSOR LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected submenu.
•When you press the MENU key in a submenu, you will
return to the previous menu.
How to Store Settings
To store settings first go back to the main menu (fig. 5-1) with
“MENU” button on the remote control and leave the SDAM with
the “STANDBY” button on the remote control.
How to Exit
Switch the set to STANDBY by pressing the power button on
the remote control transmitter. The error buffer is cleared. (If
you switch the set 'off' by removing the AC power, the set will
return in SDAM when AC power is re-applied and the error
buffer will not be cleared.)
1 00058 L06HU I 0.5DCSM
2 CODES 0 0 0 0 0
3 CODES 0 0 0 0 0
4 OP 034 004 161 009 060 117 000
5 AUTO AUTO STEREO
6
7
8 CO 31 CL 31 BR 31 SH 31
9 VL 13 BL 0
10 BS 31 TR 31
11 COMMERCIAL SMARTPORT OFF
12 CHANNEL TV2
Figure 5-2 CSM menu (example)
Menu Explanation
1. Indication of the operation hours counter, the chassis
firmware version, and the service mode (CSM= Customer
Service Mode).
2. Displays the software version used.
3. Displays the last five errors detected in the error code
buffer.
4. Displays the option bytes (decimal values).
5. Displays sound info of the set.
6. Indicates if the television is receiving an "IDENT" signal on
the selected source. If no "IDENT" signal is detected, the
display will read "NOT TUNED"
7. Reserved.
8. Displays various picture settings.
9. Displays various picture settings.
10. Displays various picture settings.
11. Displays if the TV set is in CONSUMER or COMMERCIAL
mode, and if it is on-line with e.g. a SmartPort DCM.
12. Displays the sound setting information.
How to Exit
To exit CSM, use one of the following methods:
•Press the MENU, STATUS/EXIT, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
5.3ComPair
EN 11L04.6HU CA5.
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5.2.2Customer 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, switch the optional RC2573GR remote controll
to Setup mode, and press its RECALL button.
Upon entering the Customer Service Mode, the following
screen will appear:
5.3.1Introduction
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
2
C level) and
2
C commands
Page 12
EN 12L04.6HU CA5.
Service Modes, Error Codes, and Fault Finding
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.
5.3.2Specifications
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 RS-232) 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:
•Automatically (by communicating with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I
ComPair can access the I
ComPair can send and receive I
2
C/UART bus of the television.
2
C/UART commands to
the microcontroller of the television. In this way, it is
possible for ComPair to communicate (read and write) to
devices on the I
2
C/UART buses of the TV-set.
•Manually (by asking questions to you): Automatic
diagnosis is only possible if the microcontroller of the
television is working correctly and only to a certain extent.
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.
5.3.3How to Connect
2
C/UART level.
5.4Error 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.
5.4.1 How 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.
5.4.2How 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”
•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.
This is described in the chassis fault finding database in
ComPair.
Note: If you encounter any problems, contact your local
support desk.
TO
I2C SERVICE
CONNECTOR
180804
5.4.3 Error 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).
C error while communicating with 2nd tuner1000, 5010, (PIP Module)F2
5Not applicable+5v protection 7604, 7605A5
2
6I
C busGeneral I2C error7200, 3207, 3214A4
7Not applicablePower down (over current) protection--
8Not applicableEW protection (only for sets with EW circuitry)--
2
924C16I
10TunerI
C error while communicating with the EEPROM7601, 3604, 3605A5
2
C error while communicating with the PLL tuner1000, 5001A3
11TDA6107/ABlack current loop instability protection7330, 3351, CRTB1
2
12SDA9488XI
13Not applicableI
14DVD LoaderI
15TDA9178T/N1I
16TDA9887I
17ATSC moduleI
18ATSC moduleI
C error while communicating with the PIP processor7242 (PIP Module)F1
2
C error while communicating with the Voice Ctrl processor--
2
C error while communicating with the DVD Interface moduleDVD Interface moduleDVD Loader
2
C error while communicating with the LTI module7610H
2
C error while communicating with the PIP Demodulator7201F2
2
C error while communicating with the IBO module-ATSC
2
C error while communicating with other I2C IBO module-ATSC
Note: For all error codes the following applies: error codes are
only valid when the module or device they refer to is used in the
TV set.
5.5The 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.
5.6Protections
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 (Digital) Customer Service Mode ((D)CSM).
•The Service Default Mode (SDM).
•The Service Alignment Mode (SAM).
For a detailed mode description, see the relevant sections.
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. In the next table, some default NVM values are given.
Table 5-2 Default NVM values
Bit
Addr. (DEC)
EW (EW width)58 28 2D
PW (EW parabola width)59 13 14
HS (Horizontal shift)53 2D 2B
HP (Horizontal Parallelogram)54 2A 21
HB (Horizontal Bow)55 20 1F
UCP(EW Upper Corner Parab.) 60 2A 29
LCP(EW Lower Corner Parab.) 61 30 33
TC (EW Trapezium)62 12 14
VS (Vertical Slope)63 1C 1F
VA (Vertical Amplitude)64 15 1F
SC (S-Correction)65 1E 1E
VSH (Vertical Shift)66 1E 21
VX (Vertical Zoom)67 19 19
VSC (Vertical scroll)68 20 20
VL (Vertical linearity)56 20 20
BLOR (Black Level Offset Red) 71 24 24
BLOG (Black Level Offset Grn) 72 1F 1F
AGC (AGC Take over)69 14 14
27HT4000D/27 (HEX)
27HT7210D/27 (HEX)
Page 14
EN 14L04.6HU CA5.
Service Modes, Error Codes, and Fault Finding
Bit
OIF (IF-PLL Offset)68 26 26
H60 (60 Hz Horizontal Shift)150 00 00
PWL (Peak White Limit)74 0A 0A
60 Hz Vertical amplitude 152 00 00
NVM_CVI_BLOR71 24 24
NVM_CVI_BLOG72 1F 1F
TXT Brightness128 20 20
V60 offset (60Hz Vert. Ampl.)151 00 00
NVM_CRYSTALALIGN284 3F 3F
White-D Cool Red134 20 20
White-D Cool Green135 1B 1B
White-D Cool Blue136 1A 1A
White-D Normal Red137 00 00
White-D Normal Green138 01 01
White-D Normal Blue139 07 07
White-D Warm Red140 00 00
White-D Warm Green141 FB FB
White-D Warm Blue142 EF EF
5.7.2ATSC Module
Addr. (DEC)
27HT4000D/27 (HEX)
27HT7210D/27 (HEX)
5.7.3Power Supply
Set Not Working
Check Power
Supply Mains
Switch
Bridge Rectifier
circuit 6500
Ok
Check DC
voltage at
2505/2507
Ok
Check
fusible
resistor 3532
Not Ok
Check
7512
Not Ok
Check fusible
resistor 3510 &
circuit before it
Check IC7511 &
IC7531
Ok
Set able to
start-up
Ye s
End
No
Check other
fusible resistor
and capacitor in
the circuit
E_14480_057.eps
190204
ATSC Module check
Check 10 V supply
from Main Chassis
Check Auxillary
OK?
Yes
Check UART Signal
(P1206)
OK?
Yes
Check Video &
Audio signal o/p
from ATSC Module
OK?
Yes
Check wiring and
connections of ATSC
Module
No
No
No
Power Supply
Check Hercules
UART o/p
Replace ATSC
Module
F_15760_010.eps
161105
Figure 5-4 Fault finding tree “ATSC Module check”
Figure 5-5 Fault finding tree “Set not working”
Set Does Not Start Up
Set Unable
to Start
Software
loaded?
Yes
Check
voltage
across 2552
No
Is Vbatt
approximately
140V
Yes
Check
voltage 2562
&2563
16V
Yes
Check 3V
across 2535
Yes
Check 6V
across 2535
Fuse Blown?
Load
Software
No
Yes
Check Power
Supply circuit
No
Change
Fuse
Yes
Set able to
Start
Yes
End
No
Check Line
Transistor 7405
E_14480_058.eps
Figure 5-6 Fault finding tree “Set does not start up”
170204
Page 15
Service Modes, Error Codes, and Fault Finding
EN 15L04.6HU CA5.
5.7.4Deflection
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
Replace transistor
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)
Yes
Check Horizontal
Deflection
Circuitry
E_14480_059.eps
170204
Check video supply
(2457) is approximately
180V
CB
Ok
Not Ok
Ok
Picture
appears?
Picture not appearing
Check deflection
circuit
Picture not appearing
Picture
appears?
Ok
Not Ok
Figure 5-7 Fault finding tree “One thin vertical line”
One Thin Horizontal Line
Quick check:
•Set in protection mode.
•LED blinking with error “2”.
One Horizontal
Thin Line
LED Blinking
Check all connection
and peripheral at
Deflection Circuit
in place
Check transistor
(7451, 7523, 7543) at
Vertical Deflection Circuitry
Replace transistor
Ok
Figure 5-9 Fault finding tree “Blank screen”
5.7.5Source 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
E_14480_061.eps
170204
Check Vertical
Deflection Circuit
E_14480_060.eps
170204
Figure 5-8 Fault finding tree “One thin horizontal line”
5.7.6Tuner 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.
Page 16
EN 16L04.6HU CA5.
Service Modes, Error Codes, and Fault Finding
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
5V
Yes
Check Tuner
pin 4 & 5
I2C Bus
Ok
No
No
No
Check
VT Supply
Section
Check Power
Supply
Check other
functional area
No Picture,
No Sound,
Raster Ok
Check AGC
Voltage, pin 1
of tuner
AGC voltage
changes with
different signal
strength
No
Check AGC
circuit section
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
I2C
Check I2C
Not Ok
circuit
Not Ok
Replace
Tuner
Not Ok
Tuner
E_14480_064.eps
Figure 5-12 Fault finding tree “Unable to perform tuning”
170204
Yes
Replace Tuner
E_14480_062.eps
Figure 5-10 Fault finding tree “No picture, no sound”
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
No
Refer to fig.
"Power Supply:
Set not working"
170204
Output Ok?
Ye s
Check other
functional area
Replace SAW
No
filter
E_14480_063.eps
170204
Figure 5-11 Fault finding tree “Picture ok, no sound”
Page 17
Service Modes, Error Codes, and Fault Finding
EN 17L04.6HU CA5.
5.7.7Controller
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”.
5.7.8Video 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 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
table “Default NVM values“ (addresses 140, 141, and 142).
If the data is not correct, then set these addresses to the
table values.
4. If it still not works, track Scavem output from pin64 of
Hercules to CRT panel.
5.7.9Audio Processing
No Sound
Picture Ok,
No Sound
Tuner IF OkCheck Tuner/IFNot Ok
Ok
Check AUDOUTLSL &
AUDOUTLSR pin at
UOCIII
Ok
Check Audio
Amplifier
Not Ok
Not Ok
Check UOCIII IC
Check Audio
Power Supply
Ok
Check Audio
Amplifier Circuit
and loud speaker
Ok
Check NVM
Not Ok
Figure 5-13 Fault finding tree “No sound”
No RF Audio for QSS/Inter-Carrier Stereo Sets.
1. Check pin 99 and 100 for SIF signal (for QSS) or pin 104
and 105 for video with SIF (for Inter-Carrier)
2. If signal is not present, check for the QSS/FMI bit settings.
Check also the NVM data.
3. If signals are present and still no audio, check the audio
supply voltage +8V are present.
4. If still no audio signal at 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.
Check Power
Supply
Replace Audio
Amplifier
E_14480_065.eps
201005
5.7.10 Audio 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.
Page 18
EN 18L04.6HU CA5.
Service Modes, Error Codes, and Fault Finding
Page 19
Block Diagrams, Test Point Overviews, and Waveforms
6.Block Diagrams, Test Point Overviews, and Waveforms
Wiring Diagram
19L04.6HU CA6.
WIRING DIAGRAM
RIGHT
SPEAKER
SIDE
D
A/V PANEL +
HEADPHONE
CVBS (YELLOW)
LEFT (WHITE)
RIGHT (RED)
HEADPHONE
1279
MAIN SWITCH PANEL
M
1693
6P
(component view)
B
1331
CRT PANEL
7P
5P
1351
1352
1332
CRT
SOCKET
1361
3P
AQUADAG
DEGAUSSING COIL
CRT
ROTATION
BLUE
RED
FRAME
COIL
B
YELLOW
GREEN
SCAVEM
COIL
EHT
CRT
LEFT
SPEAKER
CRT PANEL
1381
1693
1692
7
6P
7P
1
A
1507
2P
1504
2P
MONO
CARRIER
1252
7P
1254
5P
1278
3P
4P
5P
1280
15
1582
4P
(optional)
3P
1505
2P
MAINS
CORD
ATSC
5P
P12125PP12194PP12064PP1582
EXTERNAL
POWER SUPPLY
SPDIF
TUNER
SP/LS
I1
MODULE
(SMART PLUG +
BATH ROOM SPEAKER)
1246
1251
3P
1259
9P3P
U2
1220
6
6P
1
1206
7P
1207
7P
1266
0262
3P
U1
COMPAIR
CONNECTOR
1005
3P
TUNER
1262
3P
1236
3P
I1
SP/LS
MODULE
1267
1265
1204
1264
1213
7
1
1245
1263
7P
1404
2P
7P
1212
1
1219
1
9
7P
9P
1227
3P
1229
3P
1401
1451
2P
5P
LOT
5401
0228
3P
EPS1B
J1
INTERFACE MODULE
1800
0228
5P
15
1534
EXTERNAL
POWER SUPPLY
1212
6P
32P
3P
1259
9P
1692
5P
1229
3P
1219
4P
0213
2P
1227
6P
16
1213
7P
G_16430_012.eps
260406
Page 20
Block Diagrams, Test Point Overviews, and Waveforms
Block Diagram Supply and Deflection
SUPPLY AND DEFLECTION
POWER SUPPLY
A1
1505
Degaussing
1500
I511
6512
3519
7532
T4E
2511
6533
3530
Coil
I531
1504
7511
TEA1506T
2
Vcc
CONTROL
6
CTRL
STANDBY
SUPPLY
7531
TEA1623
3
Vcc
CONTROL
6
REG
11
AUX
2
1
5500 :
5501
DRAIN
DRIVER
IC
DEMAG
IC
SOURCE
SENSE
DRAIN
3507
t
6500
AC
I513
3513
14
3514
11
I519
3532
9
3517
7
3518
I533
14
2534
12
3538
6532
3534
3531
F508
2505
DC
MAIN
SUPPLY
3516
I516
D
S
7514
7512
G
6511
1503
42
1
3
5512
9
8
4
5
3
2
35321532
1A
4
5
1
2
HOT GROUND COLD GROUND
17
18
13
14
10
11
4
1
7515
TCET1103
2
3
5531
10
9
8
6
7541
ENERGIZING
CIRCUIT
(optional)
55515552
5562
5561
6564
6535
6536
6551
6563
6562
3571
6573
2564
2535
2536
V_DG
F552
1543
6571
7571
REFERENCE
CIRCUIT
+3V3
7573
STANDBY
CIRCUIT
6565 6566
3565
F536
6537
G
7561
DS
7536
Stdby_Con
I573
6576
7535
For IDTV only
Vbatt
F563
-Vaudio
F561
+Vaudio
+6VA
3575
3576
POWER-DOWN
A4
F564
+3V
+6VA
+6VA
+6V
F537
Vaux
I548
B
A4
DEFLECTION
A4
INTF_Y GREEN_IN
A4
2x
HERCULES
A5
EHTinfo
A2
56
97
7200-H
(SYNC)
20L04.6HU CA6.
VIDEO
IDENT
MAIN
SYNC
SEPARATOR
EHTo
PHI 1
DETECTOR
VERTICAL
SYNC
SEPARATOR
3232
2240
HORIZONTAL
OSC.
SAND-
CASTLE
GENERATOR
X-RAY
PROTECTION
VERTICAL
DIVIDER
112
A2A2
EHTinfo
113116
VERTICAL
GUARD
DETECTOR
PHI 2
DETECTOR
VERTICAL
SAW-
THOOTH
Vguard
HORIZONTAL
OUTPUT
E/W
+
GEOMETRY
VERTICAL
OUTPUT
+
GEOMETRY
R.G.B.
BLANKING
LINE + FRAME DEFLECTION
A2
LINE
+
E/W
CORR.
7452
7411
3465
-12V
7454
Vbatt
1404
1
2
7451
7453
3
1
F402
HOR.
DEFL.
COIL
3461
3466
5450
3474
3471
F458
1451
1
2
F459
EHT
FOCUS VG2
10
6
5
7
8
9
Vguard
VER.
DEFL.
COIL
FRAME_FB
1454
3442
6481
Vbatt
A4
I433
TO
CRT
B1
+Vbatt
3481
3410
64836484
6453
6456
3457
3455
6401
3411
3451
2403
6452
3458
3484
3485
1452
2456
6459
Vbatt
7401 : 7403
7480 : 7483
Frame_FB
EHTb
EHTb
+
EHTinfo
+
EHTinfo
BCL
PROC.
F452
F453
F455
6454
6455
EHTb
Filament
VideoSupply
3401
F401
F_15760_034.eps
POWER-DOWN
A1
A4
BCL
A4
-12V
VideoSupply
Filament
+9V
VT_SUPPLY
A4
240406
1401
5
4
3
2
1
TO 1351
B1
CRT
+6VA
LINE
7408
F412
TO RGB
PROC.
7207
HDRIVE
HD
SANDCASTLE
A5
EW_DRIVE
62
63
108
-9V
7404
+8V
7410
3498
HD
6486
5402
E/W
+8V
34203440
I417
7484
7405
BU4508DX
F418
7406
3497
F414
OUTPUT
CIRCUIT
FRAME
+9V
106
107
VDRA
VDRB
F460
F461
3462
74557456
3463
Page 21
Block Diagrams, Test Point Overviews, and Waveforms
•The Service Default Mode (SDM) and Service Alignment
Mode (SAM) are described in chapter 5. Menu navigation
is done with the CURSOR UP, DOWN, LEFT or RIGHT
keys of the remote control transmitter.
•Figures below can deviate slightly from the actual situation,
due to different set executions.
8.1General Alignment Conditions
8.1.1Start Conditions
Perform all electrical adjustments under the following
conditions:
•Power supply voltage (depends on region):
– AP-NTSC: 120 V
– AP-PAL-multi: 120 - 230 V
– EU: 230 V
AC
– LATAM-NTSC: 120 - 230 V
– US: 120 V
AC
•Connect the set to the AC Power via an isolation
transformer with low internal resistance.
•Allow the set to warm up for approximately 15 minutes.
•Measure voltages and waveforms in relation to chassis
ground (with the exception of the voltages on the primary
side of the power supply).
Caution: It is not allowed to use heatsinks as ground.
•Test probe: Ri > 10 Mohm, Ci < 20 pF.
•Use an isolated trimmer/screwdriver to perform
alignments.
or 230 VAC / 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
/ 50 Hz (± 10%).
AC
/ 60 Hz (± 10%).
8.2.1Vg2 Adjustment
1. Activate the SAM.
2. Go to the WHITE TONE sub menu.
3. Set the values of NORMAL RED, GREEN, and BLUE to
“32”.
4. Go, via the MENU key, to the normal user menu and set
5. SATURATION/COLOR to “0”.
6. CONTRAST to “0”.
7. BRIGHTNESS to minimum (OSD just visible).
8. Return to the SAM via the MENU key.
9. Connect the RF output of a pattern generator to the
antenna input. Test pattern is a 'black' picture (blank
screen on CRT without any OSD info) with a signal
strength of 1 V_pp.
10. Connect the 10:1 probe to the positive side of the vertical
deflection (positive flyback pulse). Ground the scope at the
CRT-panel. Trigger the scope on the vertical pulse.
11. Measure with a 100:1 probe (Ri > 10 Mohm, Ci < 3.5 pF) at
the cathodes of the picture tube socket (pin 8 - RED, pin 6
- GREEN and pin 11 - BLUE). Measure the level of the
black current measuring pulses. These are the 2nd line
(Red), 3rd line (Green), and 4th line (Blue) directly after the
frame blanking.
Remark: This chassis is using a TDA110xx (Hercules)
series. There are two different measuring pulses at each of
the R, G, and B cathodes. The above-mentioned level
applies to the lower pulse (which is the nearer one to the
ground) of the gun with highest cut-off voltage.
12. Select the cathode with the highest V_dc value for the
alignment. Adjust the V_cutoff of this gun with the
SCREEN potentiometer (see figure “Top view family
board”) on the LOT to the 160V.
13. Restore BRIGHTNESS and CONTRAST to normal (= 31).
8.2Hardware Alignments
7990
7601
9275
SDM
9252
1221
1204
1000 (TUNER)
D
1005
ComPair
max.
V
0V Ref.
1504
C
1506
Figure 8-2 V_cutoff waveform
CUTOFF
[VDC]
E_06532_011.eps
110204
8.2.2Focusing
1. Tune the set to a circle or crosshatch test pattern (use an
external video pattern generator).
2. Choose picture mode NATURAL (or MOVIES) with the
SMART PICTURE button on the remote control
transmitter.
A
5512
3. Adjust the FOCUS potentiometer (see figure “Top view
family board”) until the vertical lines at 2/3 from east and
west, at the height of the center line, are of minimum width
without visible haze. Also the vertical lines may not be too
wide compared to the central lines in the picture. Check
this for both cross-hatch and circle pattern.
B
LOT
Focus
Screen
VG2
E_14480_030.eps
130204
Figure 8-1 Top view family board
Page 68
EN 68L04.6HU CA8.
8.3Software Alignments and Settings
Alignments
S
Options
Remarks:
type 062596 M to
to enter
press standby to
exit
80 L06HU1 0.5DS
ERR 0 0 0 0 0
OP 34 4 161 9 60 117 0
HRM SW H3.03B. AKB ON
. CLEAR CLEARED. BRIGHTNESS ||||||----- 31
. ISP MODE OFF . CONTRAST ||||||----- 31
. OPTIONS
. DEFLECTION
. TUNER
. WHITE TONE
. GEOMETRY
. 60HZ OFFSET
. NORMAL RED 32
. NORMAL GREEN 25
. NORMAL BLUE 29
. DELTA COOL RED 0
. DELTA COOL GREEN 1
. DELTA COOL BLUE 7
. DELTA WARM RED 0
. DELTA WARM GREEN -5
. DELTA WARM BLUE -17
S
. SC 30
. SBL OFF
. VS 26
. VSH 33
. VA 39
. HS 43
. EW 46
. PW 17
S
.HS60 0
.VSH60 0
.VA60 0
G_16430_017.eps
260406
Figure 8-3 Service Mode overview (Analog TV mode)
Page 69
Enter the Service Alignment Mode (see also chapter 5 “Service
Modes, ....”). The SAM menu will now appear on the screen.
Select one of the following alignments:
•Options
•Tuner
•White Tone
•Geometry
•Audio
8.3.1Options
Options are used to control the presence/absence of certain
features and hardware.
How to change an Option Byte
An Option Byte represents a number of different options.
Changing these bytes directly, makes it possible to set all
options very fast. All options are controlled via seven option
bytes. Select the option byte (OP1.. OP7) with the MENU UP/
DOWN keys, and enter the new value.
Leaving the OPTION submenu saves the changes in the
Option Byte settings. Some changes will only take effect after
the set has been switched “off” and “on” with the AC power
switch (cold start).
Alignments
EN 69L04.6HU CA8.
How to calculate the value of an Option Byte
Calculate an Option Byte value (OP1 .. OP7) in the following
way:
•Check the status of the single option bits (OB): are they
enabled (1) or disabled (0).
•When an option bit is enabled (1) it represents a certain
value (see column “Bit value” in table below). When an
option bit is disabled, its value is 0.
•The total value of an Option Byte (decimal) is formed by the
sum of its eight option bits. The factory values are printed
on a sticker on the CRT.
Table 8-1 Option Byte calculation
Bit (value)OP1OP2OP3OP4OP5OP6OP7
0 (1)OB10 OB20 OB30 OB40 OB50 OB60 OB70
1 (2)OB11 OB21 OB31 OB41 OB51 OB61 OB71
2 (4)OB12 OB22 OB32 OB42 OB52 OB62 OB72
3 (8)OB13 OB23 OB33 OB43 OB53 OB63 OB73
4 (16)OB14 OB24 OB34 OB44 OB54 OB64 OB74
5 (32)OB15 OB25 OB35 OB45 OB55 OB65 OB75
6 (64)OB16 OB26 OB36 OB46 OB56 OB66 OB76
7 (128)OB17 OB27 OB37 OB47 OB57 OB67 OB77
Total:SumSumSumSumSumSumSum
Page 70
EN 70L04.6HU CA8.
Option Bit Assignment
Table 8-2 Option code overview per model
ByteBitOptionModel
Byte_0 (TV System)7Not Used00
600
5Default sound11
4BG (orWEST EU)-001,I(or UK)-01000
3DK (or EAST EU)-011,M-100,LL (or FRANCE)-10100
2Sound Board00
1Mono-000,Multi Stereo-00111
0BTSC Stereo-010, AVStereo-01100
Decimal (visible in Options menu)3434
Hex2222
Byte_1 (Pin Usage)7Not Used00
6WideScreen00
5Rotation00
4QSS00
3Uir Msg00
2SPI I2C01
1Not Used00
000
Decimal (visible in Options menu)04
Hex0004
Alignments
27HT4000D/27 27HT7210D/27
Byte_2 (Devices)7SCAVEM11
6Comb Filter00
5EW01
4OSD FRONT00
3Radio00
2LNA00
1Tuner00
0None-00,Philips-01,Alps-1011
Decimal (visible in Options menu)129161
Hex81A1
Byte_3 (Devices)7Not Used00
6Soft Clipper00
5Not Used00
4 00
3SmartPort01
2Active-Off LED00
1WSL00
0None-00, 4136-01, 34836-1011
Decimal (visible in Options menu)19
Hex0109
Byte_4 (AV, Tuning)7Not Used00
6AV3YC00
5CVI11
4AV2YC11
3AV311
2AV211
1AV110
0RGB00
Decimal (visible in Options menu)6260
Hex3E3C
Page 71
Alignments
ByteBitOptionModel
Byte_5 (Feature)7ITV Ring00
6Protection11
5WatchDog11
4No Ident Standby11
3Buzzer Type00
2None=00, Internal=01, External=1011
1Clock Type00
0None-00,OSD-01,LED-1011
Decimal (visible in Options menu)117117
Hex7575
Byte_6 (Power)7Not Used00
600
5 00
400
300
200
1Card POR00
000
Decimal (visible in Options menu)00
Hex0000
EN 71L04.6HU CA8.
Page 72
EN 72L04.6HU CA8.
Alignments
8.3.2Tuner
Note: Described alignments are only necessary when the NVM
(item 7601) is replaced.
IF PLL
This adjustment is auto-aligned. Therefore, no action is
required.
AGC (AGC take over point)
1. Set the external pattern generator to a color bar video
signal and connect the RF output to aerial input. Set
amplitude to 10 mV and set frequency to 61.25 MHz
(channel 3).
2. Connect a DC multimeter to pin 1 of the tuner (item 1000
on the main panel).
3. Activate the SAM.
4. Go to the TUNER sub menu.
5. Select AGC with the UP/DOWN cursor keys.
6. Adjust the AGC-value (default value is 27) with the LEFT/
RIGHT cursor keys until the voltage at pin 1 of the tuner lies
between 3.8 and 2.3 V (default value is “20”).
7. Switch the set to STANDBY, in order to store the
alignments.
CL (Cathode drive level)
Always set to “5”.
8.3.3 White Tone
8.3.4Geometry
The geometry alignments menu contains several items to align
the set, in order to obtain correct picture geometry.
1
2
3
4
5
6
7
8
VERT. SLOPE
VERT. SHIFT
VERT. AMPLITUDE
V.S-CORRECTION
HOR. SHIFT
HOR. AMPLITUDE
E/W PARABOLE
UPPER E/W CORNER
In the WHITE TONE sub menu, the values of the black cut off
level can be adjusted. Normally, no alignment is needed, and
you can use the given default values.
The color temperature mode (NORMAL, COOL and WARM)
and the color (R, G, and B) can be selected with the UP/DOWN
RIGHT/LEFT cursor keys. The value can be changed with the
LEFT/RIGHT cursor keys. First, select the values for the
NORMAL color temperature. Then select the values for the
COOL and WARM mode. After alignment, switch the set to
STANDBY, in order to store the alignments.
Default settings: See table “NVM Default values” in chapter 5
“Service Modes, ....”.
9
10
11
12
LOWER E/W CORNER
E/W TRAPEZIUM
HOR. PARALLELOGRAM
HOR. BOW
E_06532_010.eps
110204
Figure 8-4 Geometry alignments
1. Connect an external video pattern generator to the aerial
input of the TV-set and input a crosshatch test pattern. Set
the generator amplitude to at least 1 mV and set frequency
to 61.25 MHz (channel 3).
2. Set 'Smart Picture' to NATURAL (or MOVIES).
3. Activate the SAM menu (see chapter 5 “Service Modes,
...”).
4. Go to the GEOMETRY sub menu.
5. Choose HORIZONTAL or VERTICAL alignment
Now the following alignments can be performed:
Page 73
Alignments
EN 73L04.6HU CA8.
Horizontal
•Horizontal Parallelogram (HP). Align straight vertical
lines in the top and the bottom; vertical rotation around the
center.
•Horizontal Bow (HB). Align straight horizontal lines in the
top and the bottom; horizontal rotation around the center.
•Horizontal Shift (HS). Align the horizontal center of the
picture to the horizontal center of the CRT.
•East West Width (EW). Align the picture width until the
complete test pattern is visible.
•East West Parabola (PW). Align straight vertical lines at
the sides of the screen.
•Upper Corner Parabola (UCP). Align straight vertical lines
in the upper corners of the screen.
•Lower Corner Parabola (LCP). Align straight vertical lines
in the lower corners of the screen.
•East West Trapezium (TC). Align straight vertical lines in
the middle of the screen.
•H60 (Delta HSH for 60Hz, if present). Align straight
horizontal lines if NTSC system is used (60 Hz) i.s.o. PAL
(50 Hz). Default value is “9”.
Vertical
•Service blanking (SBL). Switch the blanking of the lower
half of the screen “on” or “off” (to be used in combination
with the vertical slope alignment).
•Vertical Shift (VSH). Align the vertical centering so that
the test pattern is located vertically in the middle. Repeat
the 'vertical amplitude' alignment if necessary.
•Vertical slope (VS). Align the vertical center of the picture
to the vertical center of the CRT. This is the first of the
vertical alignments to perform. For an easy alignment, set
SBL to “on”.
•Vertical Amplitude (VA). Align the vertical amplitude so
that the complete test pattern is visible.
•Vertical S-Correction (SC). Align the vertical linearity,
meaning that vertical intervals of a grid pattern must be
equal over the entire screen height.
•Vertical Zoom (VX, if present). The vertical zoom is
added in for the purpose of development. It helps the
designer to set proper values for the movie expand or
movie(16x9) compress. Default value is “25”.
•V60 (Delta VAM for 60Hz, if present). Align straight
vertical lines if NTSC system (60 Hz) is used i.s.o. PAL (50
Hz). Default value is “-2”.
In the table “NVM Default values” in chapter 5 “Service Modes,
....”, you will find the GEOMETRY default values for the
different sets.
8.3.5Audio
No alignments are needed for the audio sub menu. Use the
given default values.
QSS (Quasi Split Sound)
•For NICAM/2CS sound system (EU/AP, except for APNTSC), set to “On”.
•For AV-Stereo sound system (sets without NICAM), set to
“On”.
•For all other sets (NAFTA/LATAM/AP-NTSC), set to “Off”.
FMI (Freq. Modulation Intercarrier)
•For NICAM/2CS sound system (EU/AP, except for APNTSC), set to “On”.
•For AV-Stereo sound system (sets without NICAM), set to
“Off”.
•For dBx/non-dBx sound systems, set to “On”,
Page 74
EN 74L04.6HU CA9.
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
9.Circuit Descriptions, List of Abbreviations, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 ATSC Module
9.3 Supply Architecture
9.4 Power Modes
9.5 Abbreviation List
9.6 IC Data Sheets
9.1Introduction
SEL_LL/
H_Reset
SCART_1
Status
SCART_
2 Status
g
i
L
n
S
e
Notes:
•Only new circuits compared to the L04 chassis are
described in this chapter. For the other circuit descriptions,
see the L04 manual.
•Figures can deviate slightly from the actual situation, due
to different set executions.
•For a good understanding of the following circuit
descriptions, please use the diagrams in sections “Block
Diagrams, ...”, and/or “Electrical Diagrams”. Where
necessary, you will find a separate drawing for clarification.
TUNER
ATSC
panel
I retsaMI1suB C
Sound
Amp
_
y
n
e
V5
_
b
t
o
l
d
u
o
t
C
V
S
m
18
15
P2.0
P2.3
16
P2.2
13
ADC1
10
ADC2
t
h
14
ADC0
r
o
s
P2.1
17
RT_C
O
o
il
P0.1
HERCULES
NVM
eRes+_
t
MVN
PW
UART COMM
24
P2.4
22
P1.3
20
SDA
SCL
21
INT2
3
INT1
31
ADC3
9
32
INT0
P1.5/TX
1
P2.5
P1.4/TX
2
6
7
B
A
,
C
Power_Down
Key Board
IR
TV_IRQ
Figure 9-1 Chassis block diagram
The “L04.6 ATSC” platform is derived from the L04 chassis. It
is designed to be a Standard Definition (SD) 60 Hz set for the
NAFTA market segments. Screen sizes of standard TV models
are 27- and 32-inch, but the iTV/Hotel TV version (L04.6HU
CA) uses 27 inch screens only.
The "L04" chassis, developed by Philips Singapore BCT MTV,
was a global “50/60Hz” chassis for the BASIC and BASIC+
market segment.
The fundamental electrical properties and key components of
L04.6 ATSC are:
•Hercules = TDA12000 with integrated Video processing,
Sound processing and Microprocessor.
•Audio Amplifier = TDA2616Q with the capability to drive up
to 2X10W stereo sets.
•Zoran ZR39640: ATSC decoder + Scalar.
•The L04.6HU CA (iTV/Hotel TV), contains some additional
modules: the EPS1B (power supply for extra functions), the
SP/LS (Smart Plug and bathroom speaker), and an
Interface module (not used in standard models).
The standard architecture consists of a Main panel (called
"family board"), a Picture Tube panel, a Side I/O panel, a Top
Control panel, and an ATSC panel. The Main panel carries the
small and large signals on the same board, and uses primarily
conventional components, with some surface mounted devices
in the audio and video processing part.
F_15760_040.eps
161105
The ATSC digital module is a TV bolt on module with a
terrestrial RF Digital ATSC 8VSB (Free to Air) front end and
Cable RF Digital ATSC, QAM (Cable in-the-clear) front end.
For Service, this is a black box. When defective, this module
must be replaced, and the defective module must be send to
the centralized repair workshop.
The functions for video/audio processing, microprocessor (uP),
and CC/Teletext (TXT) decoding are all combined in one IC
(TDA120xxH, item 7200), the so-called third generation
Ultimate One Chip (UOC-III) or “Hercules”. This chip is
mounted on the “solder” side of the main panel, and has the
following features:
•Control, small signal, mono/stereo, and extensive Audio/
Video switching in one IC.
•Upgrade with digital sound & video processing.
•Alignment free IF.
•FM sound 4.5/5.5/6.0/6.5, no traps/bandpass filters.
•Full multi-standard color decoder.
•One Xtal reference for all functions (microprocessor, RCP,
TXT/CC, RDS, color decoder, and stereo sound
processor).
The tuning system features 181 channels with on-screen
display. The main tuning system uses a tuner, a
microcomputer, and a memory IC mounted on the main panel.
The microcomputer communicates with the memory IC, the
customer keyboard, remote receiver, tuner, signal processor IC
and the audio output IC via the I2C bus. The memory IC retains
Page 75
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
EN 75L04.6HU CA9.
the settings for favorite stations, customer-preferred settings,
and service / factory data.
The on-screen graphics and closed caption decoding are done
within the microprocessor where they are added to the main
signal.
The chassis uses a Switching Mode Power Supply (SMPS) for
the main voltage source. The chassis has a 'hot' ground
reference on the primary side and a cold ground reference on
RF
Tuner
IF
IF section
(SAW & Amp)
ATSC/QAM
(CAS-2)
TS
DDR
32MB
MPEG
Decoder
ZR39640
S/PDIF Out
the secondary side of the power supply and the rest of the
chassis.
9.2ATSC Module
9.2.1Block Diagram
RF Loop-through to Analogue Tuner
Flash
4MB
EEPROM
512B
I2C
Power On, Reset
L/R
Y
U
V
TV
chassis
RS-232 (SW download)
DTV board
The module functionality includes digital cable and terrestrial
reception and processing, digital terrestrial (8VSB ATSC) and
digital cable (QAM & 8VSB ATSC) free to air reception and
processing, and S/PDIF audio output possibility (coaxial). The
ATSC module provides its own OSD (On Screen Display)
capsulated in the main video output and handles EPG (digital,
based on PSIP information), CC (digital) and V-Chip (digital).
The module can be controlled via RS-232C by a host controller.
The ATSC module has one physical RF input for cable or
terrestrial. The CAS-2 IC sends the serial Transport Stream to
the MPEG-2 decoder after demodulation of the digital 8-VSB
ATSC RF (Terrestrial or Cable) and 64-256 QAM (Cable in-theclear). The MPEG2 Transport Stream is routed to the ZR39640
IC where it is parsed into video, audio, and data streams. After
the video stream decoding, processing, and conversion, the
video is coming out of the module on the main video output
(480i, analogue YUV). The audio stream is decoded,
processed, and DA converted, and is coming out of the module
on the audio output (analogue L/R, standard or DolbyProLogic down-mixed – and S/PDIF).
5V, 3.3V, 2.5V, 1.8V
Figure 9-2 Block diagram ATSC module
UART
Power 10V
F_15760_007.eps
141105
Table 9-1 ATSC module connector pinning overview
Pin No Signal Name Name Explanation
Connector P1206
1RxRS-232 Rx
2GNDGND
3TxRS-232 Tx
4RESET#Module Reset Signal
Connector P1212
1YVideo Y signal out to TV chassis
2GNDGND
3UVideo U signal Out to TV chassis
4GNDGND
5VVideo V signal Out to TV chassis
Connector P1219
1R_OUTAudio Right signal out to TV chassis
2GNDGND
3L_OUTAudio Left signal out to TV chassis
4GNDGND
5ReservedReserved
Connector P1582
110VSupply
210VSupply
3GNDGND
4GNDGND
Page 76
EN 76L04.6HU CA9.
Connector P701
1Tx3.3V TTL (RS232 Tx for Service port)
2GNDGND
3Rx3.3V TTL (RS232 Rx for Service port)
9.3Supply Architecture
9.3.1Block Diagram
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
SWITCH
FILTER
&
MH COIL
RECTIF IER
MAINS SM PS
AUX SMPS
Vbatt ( To def lection )
-Vaudio
+Vaudio
Stdby_Con (From Hercules)
+3.3V ( To Hercules)
+1
2V (To ATSC panel)
Figure 9-3 Block diagram Power Supply
The L04.6 power management consists of two Switched Mode
Power Supplies (SMPS).
The Main SMPS delivers Vbat and Vaudio. The Aux SMPS
delivers 3.3V, 12V to derive Hercules and Tuner on the main
chassis, and also to provide the 3.3V, 6V and 10V supply to the
ATSC Module The Aux SMPS also gives out the
POWER_DOWN signal to the Hercules. This is an early
warning signal on power failure used to mute the sound and
EHT discharge.
The Hercules gives out STDBY_CON signal to the Main
SMPS. This is to enable the Main SMPS in normal operation,
RELAYDEGAUS S
F_15760_041.eps
161105
and disable it during Stand-by. Figure above gives the block
diagram of the complete chassis power supply.
STBY_CON
This signal is generated by the Hercules. It is logic “Low” (0V)
under normal operation and in Semi Stand-by of the TV, and
High (3.3V) during Stand-by.
POWER_DOWN
This signal is generated by the Aux SMPS. It is logic “High”
(3V3) under normal operation of the TV and goes “Low” (0V)
when the AC Power input voltage of the supply goes below 70
V
.
AC
Page 77
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
r
,
EN 77L04.6HU CA9.
B (Hercules Port)
This port is used to switch “on” the +12V of the ATSC panel. It
is logic “High” (3.3V) under normal operation and in Semi
Stand-by of the TV, and “Low” (0V) during Standby.
9.4Power Modes
“OFF”
e
I2C.
“PROTECTION”
Pull out AC
mains cable
Plug in/out AC Power cable
Keypad,
Remote Controller,
“STANDBY”
Tim
Figure 9-4 Power modes transition diagram
The chassis has four power supply modes for efficient power
management and protection management. They are: “ON”,
“OFF”, “STANDBY”, and “PROTECTION”. Transitions
between any power modes are shown in figure above.
9.4.1OFF Mode
The set is completely switched “off” from the AC Power. This is
done with the AC. For NAFTA it means disconnecting the TV
from the mains by pulling out the AC Power cable. When the
mains is connected, this mode transits to “STANDBY”. The
transition timing for a “cold” start from “OFF” state to “ON” is
such that from the instance the Hercules gets a hard reset, in
12 s or less, the audio and video must be present.
9.4.2ON Mode
This is the normal operating mode. All the power supply lines
in the chassis are available. All the circuits in the set are active.
From this mode, it is possible to transit to “STANDBY,
“PROTECTION”, or “OFF” mode.
9.4.3STANDBY Mode
The total power consumption of the TV set in this mode shall
be equal or less than 1 W (“GREEN” requirement).The Standby
State will be indicated by the LED (LED “off”). In this state, only
the Hercules uP and NVM are powered. Rest of the chassis
sub-systems are disconnected. Control ports STDBY_CON
and AUX_ON are defined to control this status. In this mode,
the Hercules and peripherals are set to the lowest power
consumption mode (SLEEP MODE) by software. From this
mode it shall be possible to transit to “ON” or “OFF” mode.
9.4.4PROTECTION Mode
The power profile for the PROTECTION mode is as low as
required to allow “soft” diagnostics, error detection, and to
indicate LED flashes to flag the type of fault. The horizontal
deflection is “off” in this mode. From the protection mode the
only possible transition is to “OFF” mode and “ON” mode.
Special cases to disable
algorithm that installs TV sets directly
from cable network by means of a
predefined TXT page
ADCAnalogue to Digital Converter
AFCAutomatic Frequency Control: control
signal used to tune to the correct
frequency
AFTAutomatic Fine Tuning
AGCAutomatic Gain Control: algorithm that
controls the video input of the feature
box
AMAmplitude Modulation
APAsia Pacific region
ARAspect Ratio: 4 by 3 or 16 by 9
ATSAutomatic Tuning System
AVExternal Audio Video
AVLAutomatic Volume Leveler
BCLBeam Current Limitation
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz
BTSCBroadcast Television Standard
Committee. Multiplex FM stereo sound
system, originating from the USA and
used e.g. in LATAM and AP-NTSC
countries
CCClosed Caption
CCCContinuous Cathode Calibration
ComPairComputer aided rePair
CRTCathode Ray Tube or picture tube
CSMCustomer Service Mode
CTIColor Transient Improvement:
manipulates steepness of chroma
transients
CVBSComposite Video Blanking and
Synchronization
CVIComponent Video Input
DACDigital to Analogue Converter
DBXDynamic Bass Expander or noise
reduction system in BTSC
D/KMonochrome TV system. Sound
carrier distance is 6.5 MHz
DFUDirection For Use: description for the
end user
DNRDynamic Noise Reduction
DSPDigital Signal Processing
DSTDealer Service Tool: special remote
control designed for dealers to enter
e.g. service mode
DVDDigital Versatile Disc
EEPROMElectrically Erasable and
Programmable Read Only Memory
EHTExtra High Tension
EHT-INFOExtra High Tension information
EPGElectronic Programming Guide
EUEurope
EWEast West, related to horizontal
deflection of the set
EXTExternal (source), entering the set via
SCART or Cinch
FBLFast Blanking: DC signal
accompanying RGB signals
FILAMENTFilament of CRT
FMField Memory or Frequency
Modulation
HHorizontal sync signal
HPHeadphone
IMonochrome TV system. Sound
carrier distance is 6.0 MHz
I2CIntegrated IC bus
IFIntermediate Frequency
Page 78
EN 78L04.6HU CA9.
Circuit Descriptions, List of Abbreviations, and IC Data Sheets
IICIntegrated IC bus
ITVInstitutional TV
LATAMLatin American countries like Brazil,
Argentina, etc.
LEDLight Emitting Diode
L/L'Monochrome TV system. Sound
carrier distance is 6.5 MHz. L' is Band
I, L is all bands except for Band I
LSLarge Screen or Loudspeaker
M/NMonochrome TV system. Sound
carrier distance is 4.5 MHz
NCNot Connected
NICAMNear Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, mainly used in Europe.
NTSCNational Television Standard
Committee. Color system mainly used
in North America and Japan. Color
carrier NTSC M/N = 3.579545 MHz,
NTSC 4.43 = 4.433619 MHz (this is a
VCR norm, it is not transmitted off-air)
NVMNon Volatile Memory: IC containing
TV related data e.g. alignments
OBOption Bit
OCOpen Circuit
OPOption Byte
OSDOn Screen Display
PALPhase Alternating Line. Color system
mainly used in West Europe (color
carrier = 4.433619 MHz) and South
America (color carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCBPrinted Circuit board
PLLPhase Locked Loop. Used for e.g.
FST tuning systems. The customer
can give directly the desired frequency
PORPower-On Reset
PTPPicture Tube Panel (or CRT-panel)
RAMRandom Access Memory
RCRemote Control handset
RGBRed, Green, and Blue video signals
ROMRead Only Memory
SDAMService Default / Alignment Mode
SAPSecond Audio Program
SCSandcastle: pulse derived from sync
signals
S/CShort Circuit
SCLSerial Clock
SDASerial Data
SECAMSEequence Couleur Avec Memoire.
Color system mainly used in France
and East Europe. Color carriers =
4.406250 MHz and 4.250000 MHz
SIFSound Intermediate Frequency
SSSmall Screen
STBYStandby
SVHSSuper Video Home System
SWSoftware
THDTotal Harmonic Distortion
TXTTeletext
uPMicroprocessor
UOCUltimate One Chip
VVertical sync signal
V_BATMain supply voltage for the deflection
stage (mostly 141 V)
V-chipViolence Chip
VCRVideo Cassette Recorder
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
XTALQuartz crystal
YCLuminance (Y) and Chrominance (C)
signal
9.6IC Data Sheets
Not applicable
Page 79
10. Spare Parts List
Not available at the time of publishing
Spare Parts List
EN 79L04.6HU CA10.
Page 80
EN 80L04.6HU CA11.
11. Revision List
Manual xxxx xxx xxxx.0
•First release.
Revision List
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