Philips FTL3.1E Schematic

Colour television Chassis

FTL3.1E

AA

E_14700_000.eps

261004

Contents Page Contents Page

1 Technical Specifications, Connections, and Chassis

Overviews 2
2 Safety Instructions, Warnings, and Notes 5
3 Directions for Use 7
4 Mechanical Instructions 9
5 Service Modes, Error Codes, and Faultfinding 12
6 Block Diagrams, Testpoint Overview, and

Waveforms

Wiring Diagram 32” Sharp LCD 29

Block Diagram Supply + Standby 32” 30

Block Diagram Video 31

Block Diagram Audio 32

2

I

C Overview 33

Supply Lines Overview 34
7 Circuit Diagrams and PWB layouts Diagram PWB

PSU (30-32”): M. Filter and Stby (Diagram A1) 35 37-40

PSU (30-32”): Supply (Diagram A2) 36 37-40

SSB: Layout Cell Overview (Diagram B0) 41 83-92

SSB: DC/DC (Diagram B2) 42 83-92

SSB: Tuner (Diagram B3) 43 83-92

SSB: MPIF/AVIP Main (Diagram B4) 44-50 83-92

SSB: MPIF/AVIP Sub (Diagram B5) 51-57 83-92

SSB: Viper (Diagram B6) 58-62 83-92

SSB: Stand-by Controller (Diagram B7) 63-65 83-92

SSB: Spider (Diagram B8) 66 83-92

SSB: Display Interface (Diagram B9) 67-72 83-92

SSB: Connections (Diagram B10)73 83-92

SSB: I/O (Diagram B11)74-79 83-92

SSB: Ethernet (Diagram B12)80 83-92

SSB: LVDS Connector (Diagram B13)81 83-92

SRP (Service Reference Protocol) Explanation 81

Small Signal Board: SRP (Signal References) 82

External I/O 1 (Diagram BE1)93 95

External I/O 2 (Diagram BE1)94 95

©

Copyright 2004 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.

Side I/O Panel (Diagram D) 96 97
Top Control Panel (Diagram E) 98 99
LED and Switch Panel (Diagram J) 100 101
LCD SA Panel: Connections (Diagram SA1)102 105-107
LCD SA Panel: Standby (Diagram SA2)103 105-107

LCD SA Panel: Audio (Diagram SA3)104 105-107
8 Alignments 109
9 Circuit Descriptions 112

List of Abbreviations 123

IC Data Sheets 125
10 Spare Parts List 134
11 Revision List 144

Published by WO 0471 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 14700

EN 2 FTL3.1E AA1.

Technical Specifications, Connection, and Chassis Overview

1. Technical Specifications, Connection, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connection Overview

1.3 Chassis Overview

Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.

1.1 Technical Specifications

1.1.1 Vision

Display type : LCD-VA, WXGA
Screen size : 32” (82 cm), 16:9
Resolution (HxV pixels) : 1366(*3)x768p
Contrast ratio : 800:1
Light output (cd/m
Response time (ms) : 12
Viewing angle (HxV degrees) : 170x170
Tuning system : PLL
TV Colour systems : PAL B/G, D/K, I

Video playback : PAL

Supported formats : VGA(640x480,60Hz)

Channel selections : 100 presets

Aerial input : 75 ohm, Coax

2

) : 450

: SECAM B/G, D/K, L/L’

: SECAM

: 640x480i - 1fH
: 640x480p - 2fH
: 720x576i - 1fH
: 720x576p - 2fH

: VHF
: UHF
: S-band
: Hyper-band

: IEC-type

- Normal operation (W) : ≈ 185

- Standby (W) : < 2

Dimensions (WxHxD in cm) : 87.5x61x10.7

Weight (kg) : 20

1.2 Connection Overview

Note: The following connector colour abbreviations are used

(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.

1.2.1 Side Connections

SIDE I/O

USB

R
AUDIO
L

CVBS

SVHS

E_14700_064.eps

071004

Figure 1-1 Side I/O connections

USB1.1 (Input/Output)

1.1.2 Sound

Sound systems : 2CS B/G, D/K

: NICAM B/G, D/K, I, L

Maximum power (W

) : 2 x 15

RMS

1.1.3 Multimedia

Supported digital media : Compact Flash I & II

: Memory Stick
: Microdrive
: Secure Digital Card
: Multi Media Card
: Smart Media Card

Supported file formats : JPEG

: MP3

USB input : USB1.1

1.1.4 Miscellaneous

Power supply:

- Mains voltage (V

) : 220 - 240

AC

- Mains frequency (Hz) : 50

Ambient conditions:

- Temperature range (°C) : +5 to +40

- Maximum humidity : 90% R.H.

1234

E_06532_022.eps

300904

Figure 1-2 USB (type A)

1-+5V k
2 - Data (-) jk
3 - Data (+) jk
4 - Ground Gnd H

Mini Jack: Audio Headphone - Out

Bk - Headphone 32 - 600 ohm / 10 mW ot

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

SVHS (Hosiden): Video Y/C - In

1 - Ground Y Gnd H
2 - Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V

/ 75 ohm j

PP

/ 75 ohm j

PP

Digital Media Reader (Input)

This is a 6 in 1 card reader unit, connected via USB to the Small
Signal Board.

Power consumption

Technical Specifications, Connection, and Chassis Overview

1.2.2 Rear Connections

EN 3FTL3.1E AA 1.

EXT.1

ANTENNE

HDMI DIG. AUDIO AUDIO

Figure 1-3 Rear I/O

Aerial - In

- - IEC-type (EU) Coax, 75 ohm D

Ext. 1: Video RGB/YPbPr - In, CVBS - In/Out, Audio - In/Out

21

20

E_06532_001.eps

2

1

050404

Figure 1-4 SCART connector

1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video Blue/Pb 0.7 V

/ 10 kohm j

RMS

/ 75 ohm j

PP

8 - Status 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 - Ground Green Gnd H
10 - n.c.
11 - Video Green/Y 0.7 or 1 V

/ 75 ohm j

PP

12 - n.c.
13 - Ground Red Gnd H
14 - Ground Status Gnd H
15 - Video Red/Pr 0.7 V
16 - FBL/Hsync 0 - 0.4 V: INT

/ 75 ohm j

PP

1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H

/ 75 ohm k

PP

/ 75 ohm j

PP

HDMI: Digital Video, Digital Audio - In

19

18 2

1

E_06532_017.eps

050404

Figure 1-5 HDMI (type A) connector

1 - D2+ Data channel j
2 - Shield Gnd H
3 - D2- Data channel j
4 - D1+ Data channel j
5 - Shield Gnd H
6 - D1- Data channel j
7 - D0+ Data channel j
8 - Shield Gnd H
9 - D0- Data channel j
10 - CLK+ Data channel j
11 - Shield Gnd H
12 - CLK- Data channel j
13 - n.c.

CENTRE

IN

LL

IN

AUDIO

RR

OUT

SUBW

AUDIO

SERVICE

OUT

14 - n.c.
15 - DDC_SCL DDC clock j
16 - DDC_SDA DDC data jk
17 - Ground Gnd H
18 - +5V j
19 - HPD
20 - Ground Gnd H

Cinch: HDMI Audio - In

Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V

Cinch: Audio - Out

Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V

Cinch: Subwoofer - Out, Centre - In

Bu - Center 0.5 V
Bk - Subwoofer 0.5 V

Service connector (UART)

1 - UART_TX k
2 - Ground Gnd H
3 - UART_RX j

Ext. 2: Video RGB/YPbPr - In, CVBS - In/Out, Audio - In/Out

1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H
5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video Blue/Pb 0.7 V
8 - Status 0 - 2 V: INT

9 - Ground Green Gnd H
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - Video Green/Y 0.7 or 1 V
12 - n.c.
13 - Ground Red Gnd H
14 - Ground Status Gnd H
15 - Video Red/Pr 0.7 V
16 - FBL/Hsync 0 - 0.4 V: INT

17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video Y/CVBS 1 V
21 - Shield Gnd H

EXT.2 EXT.3

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

1 - 3 V: EXT / 75 ohm j

PP
PP

MAINS

E_14700_056.eps

121104

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 10 kohm kq

RMS

/ 10 kohm kq

RMS

/ 10 kohm jq

RMS

/ 10 kohm kq

RMS

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 75 ohm j

PP

/ 75 ohm j

PP

/ 75 ohm j

PP

/ 75 ohm k
/ 75 ohm j

EN 4 FTL3.1E AA1.

Technical Specifications, Connection, and Chassis Overview

Ext. 3: Video RGB/YPbPr - In, CVBS - In/Out, Audio - In/Out

1-n.c.
2 - Audio R 0.5 V
3-n.c.
4 - Ground Audio Gnd H
5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video Blue/Pb 0.7 V
8 - Status 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 - Ground Green Gnd H
10 - n.c.

/ 10 kohm j

RMS

/ 10 kohm j

RMS

/ 75 ohm j

PP

1.3 Chassis Overview

STANDBY /

SA

AUDIO PANEL

MULTIMEDIA
CARD READER

11 - Video Green/Y 0.7 V
12 - n.c.
13 - Ground Red Gnd H
14 - Ground Status Gnd H
15 - Video Red/Pr 0.7 V
16 - FBL/Hsync 0 - 0.4 V: INT

17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H

/ 75 ohm j

PP

/ 75 ohm j

PP

1 - 3 V: EXT / 75 ohm j

/ 75 ohm k

PP

/ 75 ohm j

PP

MF SUPPLY

PANEL

SIDE I/O PANEL

A

D

CONTROL PANEL

E

SMALL SIGNAL

B

PANEL

LED PANEL

J

Figure 1-6 PWB locations

EXTERNAL

I/O PANEL

E_14700_057.eps

H

151104

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

EN 5FTL3.1E AA 2.

2.1 Safety 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.

Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:

• Route the wire trees correctly and fix them with the

mounted cable clamps.

• Check the insulation of the Mains (AC Power) lead for

external damage.

• Check the strain relief of the Mains (AC Power) cord for

proper function.

• 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.

2.2 Warnings

• 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.

2.3 Notes

2.3.1 General

• 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).

aligned under a microscope or magnifying glass. If this is not possible, try to align the (LF)BGA with any board markers.

• 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 semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.

• Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.

2.3.2 Schematic Notes

• All resistor values are in ohms and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2
indicates 2.2 kohm).

• Resistor values with no multiplier may be indicated with
either an "E" or an "R" (e.g. 220E or 220R indicates 220
ohm).

• All capacitor values are 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.

2.3.3 Rework on BGA (Ball Grid Array) ICs

General

Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF)BGA has to be
discarded.

Device Removal

As is the case with any component that, it is essential when
removing an (LF)BGA, the board, tracks, solder lands, or
surrounding components are not damaged. To remove an
(LF)BGA, the board must be uniformly heated to a temperature
close to the reflow soldering temperature. A uniform
temperature reduces the chance of warping the PWB.
To do this, we recommend that the board is heated until it is
certain that all the joints are molten. Then carefully pull the
component off the board with a vacuum nozzle. For the
appropriate temperature profiles, see the IC data sheet.

Area Preparation

When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has shown to result in
problems during re-soldering.

Device Replacement

The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be

-9

), or pico-farads (p= x10

-12

-6

),

).

EN 6 FTL3.1E AA2.

Safety Instructions, Warnings, and Notes

To reflow the solder, apply a temperature profile according to
the IC data sheet. 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
not available for all regions) ). After login, select “Magazine”,
then go to “Workshop Information”. Here you will find
Information on how to deal with BGA-ICs.

2.3.4 Lead Free Solder

Philips CE is going to produce lead-free sets (PBF) from

1.1.2005 onwards.
Lead-free sets will be indicated by the PHILIPS-lead-free logo
on the Printed Wiring Boards (PWB):

(needs subscription,

P

b

Figure 2-1 Lead-free logo

• Special information for lead-free BGA ICs: these ICs will be
delivered in so-called "dry-packaging" to protect the IC
against moisture. This packaging may only be opened
short before it is used (soldered). Otherwise the body of the
IC gets "wet" inside and during the heating time the
structure of the IC will be destroyed due to high (steam­)pressure inside the body. If the packaging was opened
before usage, the IC has to be heated up for some hours
(around 90°C) for drying (think of ESD-protection !).
Do not re-use BGAs at all!

• For sets produced before 1.1.2005, containing leaded
soldering tin and components, all needed spare parts will
be available till the end of the service period. For the repair
of such sets nothing changes.

2.3.5 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions - reactions that are best avoided. Before reaching
into a powered TV set, it is best to test the high voltage
insulation. It is easy to do, and is a good service precaution.

This sign normally has a diameter of 6 mm, but if there is less
space on a board also 3 mm is possible.

In case of doubt wether the board is lead-free or not (or with
mixed technologies), you can use the following method:

• Always use the highest temperature to solder, when using
SAC305 (see also instructions below).

• De-solder thoroughly (clean solder joints to avoid mix of
two alloys).

Caution: For BGA-ICs, you must use the correct temperature­profile, which is coupled to the 12NC. For an overview of these
profiles, visit the website www.atyourservice.ce.philips.com
(needs subscription, but is not available for all regions)
You will find this and more technical information within the
"Magazine", chapter "Workshop information".
For additional questions please contact your local repair­helpdesk.

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.

3. Directions for Use

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You can download the User Manual from the following website:

http://www.philips.com/support

As the software upgrade is a new feature, it is explained below.

Directions for Use

.

EN 7FTL3.1E AA 3.

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EN 8 FTL3.1E AA3.

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4. Mechanical Instructions

Mechanical Instructions

EN 9FTL3.1E AA 4.

Index of this chapter:

4.1 Cable Dressing

4.2 Service Positions

4.3 Assy/Panel Removal

4.4 Set Re-assembly

4.1 Cable Dressing

Notes:

• Figures below can deviate slightly from the actual situation,
due to the different set executions.

• Follow the disassemble instructions in described order.

4.2 Service Positions

For easy servicing of this set, there are a few possibilities
created:

• The buffers from the packaging.

• Foam bars (created for service).

• Aluminium service stands (created for Service).

4.2.1 Foam Bars

E_06532_018.eps

Figure 4-2 Foam bars

The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. By laying the TV
face down on the (ESD protective) foam bars, a stable situation
is created to perform measurements and alignments.
By placing a mirror under the TV, you can monitor the screen.

Figure 4-1 Cable dressing

170504

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4.2.2 Aluminium Stands

E_06532_019.eps

170504

Figure 4-3 Aluminium stands (drawing of MkI)

The new MkII aluminium stands (not on drawing) with order
code 3122 785 90690, can also be used to do measurements,
alignments, and duration tests. The stands can be
(dis)mounted quick and easy by means of sliding them in/out
the "mushrooms". The new stands are backwards compatible
with the earlier models.
Important: For (older) FTV sets without these "mushrooms", it
is obligatory to use the provided screws, otherwise it is possible
to damage the monitor inside!.

EN 10 FTL3.1E AA4.

Mechanical Instructions

4.3 Assy/Panel Removal

4.3.1 Metal Back Plate

Caution: Disconnect the AC Power (mains) cord before you
remove the metal back plate.

1. Place the TV set upside down on a table top, using the
foam bars (see part "Foam Bars").
Caution: do not put pressure on the display, but let the
monitor lean on the speakers or the Front cover.

2. Remove all T10 screws from the metal back plate.

3. Remove the four "mushrooms" from the back plate.

4. Lift the back plate from the set. Make sure that wires and

flat foils are not damaged during the back plate removal.

4.3.2 Rear Cover

1. Remove all T10 parker screws around the edges of the
rear cover.

2. Lift the rear cover from the set.

4.3.3 Stand-by Supply/Audio Panel

1. Disconnect all cables from the Stand-by Supply/Audio
panel.

2. Remove all T10 mounting screws from the Stand-by
Supply/Audio panel.

3. Take out the Stand-by Supply/Audio panel (it hinges at the
bottom side).

4.3.4 MF Supply Panel

4.3.10 Speakers

After removal of the rear cover, you can access the speakers.
Note: In the rear cover itself, two additional “passive” speakers
are mounted. It is very important that they operate in a airtight
environment. Be sure that the foam that makes the unit airtight
is not damaged. Otherwise, replace it.

4.3.11 Small Signal Board (SSB)

1

2

3

Figure 4-4 SSB top shielding

E_14700_050.eps

300904

1. Disconnect all cables from the MF Supply panel.

2. Remove all T10 mounting screws from the MF Supply

panel.

3. Take out the panel.

4.3.5 Side I/O Panel

1. Disconnect the cable(s) from the panel.

2. Remove the T10 mounting screws that hold the assy.

3. Release the clamps and take out the panel from its bracket.

4.3.6 External I/O Panel

1. Disconnect the flat foil cable on the panel.

2. Remove the mounting screws near each connector at the

connector plate.

3. Take out the panel.

4.3.7 LED Panel

1. Disconnect the cable(s) from the panel.

2. Remove the T10 mounting screws that hold the panel.

3. Take out the panel.

4.3.8 Control Panel

1. Disconnect the cable(s) from the panel.

2. Remove the T10 mounting screws that hold the assy.

3. Release the clamps and take out the panel from its bracket.

4.3.9 Multi Media Card Reader

1. Unplug the related USB cable at the top of the SSB.

2. Remove the two T10 mounting screws that hold the assy.

When defective, replace the whole unit.

6

5 4

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Figure 4-5 SSB

1. Remove the fixing tape (1) on the LVDS connector.

2. Remove all fixing screws (2).

3. Lift the shielding at the top and shift it upwards. Some force

may be necessary, as the shielding clamps at the
connector side.

4. Remove all connector fixation screws at the connector
plate (3).

5. Remove the mounting screw(s) from the SSB (5).

6. Important: Before lifting the SSB, release the two plastic

clamps (4), with e.g. a pair of pliers, in order to release the
heatsink of the Viper IC. If you forget this, the SSB cannot
be taken out!

7. Unplug the LVDS and USB cables at the top of the SSB (6).

8. Lift the SSB, disconnect all other cables, and take out the

SSB.

9. After removal of the SSB, you can see the Viper heatsink
“sticked” to the bottom shielding by means of the thermal
foam (see figure “Viper heatsink removal”).

Mechanical Instructions

Heat
Sink

EN 11FTL3.1E AA 4.

To remove this heatsink, carefully pull it away from the
heatsink. When you do this properly, the thermal foam can
be re-used (during non-use, keep it away from dirt).

Figure 4-6 Viper heatsink removal

4.3.12 LCD Panel

Heat

Heat

Sink

Sink

E_14700_053.eps

300904

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse
order.

Notes:

• While re-assembling, make sure that all cables are placed
and connected in their original position. See figure "Cable
dressing".

• During re-assembly of the SSB, it is important that the
heatsink of the Viper IC, together with the thermal foam, is
mounted on the chip before the SSB is re-placed (see
figure “Heatsink mounting“). Place the heatsink on top of
the Viper IC (do not use cooling paste), and push the
clamps through the appropriate holes in the PWB.

• Pay special attention not to damage the EMC foams on the
SSB shields. Control that EMC foams are mounted
correctly.

• Insulate the tuner pins, so that they cannot touch the
shielding (see also figure “SDM Service jumper” in Chapter

5).

1

3

4

Figure 4-7 LCD panel removal

1. Remove the T10 screws (1) from the mounting frame.

2. Remove all LCD panel mounting T20 screws (2).

3. Important: Unplug the cable(s) at the LCD panel (3).

Be careful, the LVDS connector (CN1) is very fragile!

4. Unplug the backlight and loudspeaker cables on the Audio/
Stand-by panel (4).

5. Unplug all cables on the LED panel (5).

6. Lift the metal frame (together with all PWBs) from the LCD

panel. During lift, free the backlight and speaker cables.

7. After removal of the frame, you can lift the LCD display
from the set.

2

5

1

1

1

E_14700_065.eps

141004

Figure 4-8 Heatsink mounting

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EN 12 FTL3.1E 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 Stepwise Start-up

5.4 ComPair

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Protections

5.8 Repair Tips

5.9 Software Upgrading

5.10 Start-up flow charts

5.1 Test Points

The chassis is equipped with test points printed on the circuit
board assemblies.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

Service Default Mode (SDM) and Service Alignment Mode
(SAM) offer several features for the service technician, while
the Customer Service Mode (CSM) is used for communication
between a Philips Customer Care Centre (P3C) and a
customer.

There is also the option of using ComPair, a hardware interface
between a computer (see requirements below) and the TV
chassis. It offers the ability of structured troubleshooting, test
pattern generation, error code reading, software version read­out, and software upgrading.
Minimum requirements: a Pentium processor, Windows 95/
98, and a CD-ROM drive (see also paragraph “ComPair”).

5.2.1 Service Default Mode (SDM)

Purpose

• To create a pre-defined setting, to get the same
measurement results as given in this manual.

• To override SW protections and make the TV start up to the
step just before protection (a sort of automatic stepwise
start up). See paragraph “Stepwise Start Up”.

• To start the blinking LED procedure (not valid in protection
mode).

Specifications

• Tuning frequency: 475.25 MHz for PAL.

• Colour system: PAL B/G.

• All picture settings at 50% (brightness, colour, contrast).

• All sound settings at 50%, except volume at 25%.

• All service-unfriendly modes (if present) are disabled, like:
– (Sleep) timer.
– Child/parental lock.
– Blue mute.
– Automatic volume limiter (AVL).
– Auto switch-off (when no video signal was received for

10 minutes).

– Skip/blank of non-favourite pre-sets.
– Smart modes.
– Auto store of personal presets.
– Auto user menu time-out.

How to activate SDM

Use one of the following methods:

• Use the standard RC-transmitter and key in the code

“062596”, directly followed by the “MENU” button.
Note: It is possible that, together with the SDM, the main

menu will appear. To switch it off, push the “MENU” button
again.

• Short for a moment the two solder pads on the SSB, with
the indication “SDM” (see figure “Power supply indicators“
in paragraph “Repair Tips”). Activation can be performed in
all modes, except when the set has a problem with the
Stand-by microprocessor.

• Use the DST-emulation feature of ComPair.

• Use the “DEFAULT” button on the Dealer Service Tool

(RC7150).

After activating this mode, “SDM” will appear in the upper right
corner of the screen.

How to navigate

When you press the “MENU” button on the RC transmitter, the
set will toggle between the SDM and the normal user menu
(with the SDM mode still active in the background).

How to exit SDM

Use one of the following methods:

• Switch the set to STAND-BY via the RC-transmitter.

• It is possible that in some SW older versions this method

does NOT work. To check this, do the following:

– Activate SDM
– Switch TV to stand-by
– Switch TV back on (now you will note that SDM is de-

activated)

– Disconnect power cord from mains.
– Connect power cord again
– Check if TV starts in SDM. If this is the case you should

use the exit method via normal RC, the “00”-sequence.

• Press the “EXIT” button on the DST.

• Via a standard customer RC-transmitter: key in “00”-

sequence.

5.2.2 Service Alignment Mode (SAM)

Purpose

• To perform (software) alignments.

• To change option settings.

• To easily identify the used software version.

• To view operation hours.

• To display (or clear) the error code buffer.

Specifications

• Operation hours counter.

• Software version.

• Option settings.

• Error buffer reading and erasing.

• Software alignments.

How to activate SAM

Use one of the following methods:

• Via a standard RC transmitter: key in the code “062596”
directly followed by the “OSD [i+]” button. After activating
SAM with this method a service warning will appear on the
screen, you can continue by pressing any digit key on the
RC.

• Use the DST-emulation feature of ComPair.

• Press the ALIGN button on the DST while the set is in the

normal operation.

• Shorting the two solder pads on the SSB, with the
indication “SAM”. Will NOT function any more, these pads
are still available on the SSB but do not function.

Service Modes, Error Codes, and Fault Finding

EN 13FTL3.1E AA 5.

After activating this mode, “SAM” will appear in the upper right
corner of the screen.

Contents of SAM:

• HARDWARE INFO.
– Viper SW Version. Displays the software version of

the VIPER software (main software).
(Example: TL31E_1.0_01234 =
AAAAB_X.Y_NNNNN).

• AAAA= the chassis name (e.g. TL31= FTL3.1).

• B= the region: E= Europe.

• X.Y= the software version, where X is the main

version number (different numbers are not
compatible with one another) and Y is the sub
version number (a higher number is always
compatible with a lower number).

• NNNNN= last five digits of 12nc code of the

software.

– SBY PROC Version. Displays the software version of

the stand-by processor.

– Production Code. Displays the production code of the

TV, this is the serial number as printed on the back of
the TV set.

• OPERATION HOURS. Displays the accumulated total of
operation hours (not the stand-by hours). Every time the
TV is switched on/off, 0.5 hours is added to the this
number.

• ERRORS. (Followed by maximal 10 errors). The most
recent error is displayed at the upper left (for an error
explanation see paragraph “Error Codes”).

• DEFECTIVE MODULE. Here the module that generates
the error is displayed. If there are multiple errors in the
buffer, which are not all generated by a single module,
there is probably another defect. It will then display the
message “UNKNOWN” here.

• RESET ERROR BUFFER. When you press the “OK”
button, the error buffer is reset.

• ALIGNMENTS. This will activate the “ALIGNMENTS” sub-
menu.

• DEALER OPTIONS. Extra features for the dealers.

• OPTIONS. Extra features for Service.

• INITIALISE NVM. When an NVM was corrupted (or

replaced) in the former EM3 chassis, the microprocessor
replaces the content with default data (to assure that the
set can operate). However, all pre-sets and alignment
values are gone now, and option numbers are not correct.
Therefore, this was a very drastic way. In this chassis, the
procedure is implemented in another way: The moment the
processor recognises a corrupted NVM, the “initialise
NVM” line will be highlighted. Now, you can do two things
(dependent of the service instructions at that moment):
– Save the content of the NVM via ComPair for

development analysis, before initialising. This will give
the Philips Service department an extra possibility for
diagnosis (e.g. when Development asks for this).

– Initialise the NVM (same as in the past, however now it

happens conscious).

• STORE. All options and alignments are stored when
pressing the “OK”-button

•

FUNCTIONAL TEST. All devices are tested via the “OK”
button. Eventual errors are displayed in the error buffer.
The error buffer is not erased, the content returns when this
test is terminated. It is possible that with some software
versions, this function does not function. It is strongly
advice to check for errors by switching the TV on and off.

• SW MAINTENANCE.

• SW Events. Not useful for service purposes. In case of

specific software problems, the development
department can ask for this info.

• HW Events. Not functional at the moment this manual

is released, description will be published in an update
manual if the function becomes available.

How to navigate

• In SAM, you can select the menu items with the “CURSOR
UP/DOWN” key on the RC-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:
– (De) activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected sub menu.

How to exit SAM

Use one of the following methods:

• Press the “MENU” button on the RC-transmitter, or

• Switch the set to STAND-BY via the RC-transmitter, or

• Press the “EXIT” button on the DST.

5.2.3 Customer Service Mode (CSM)

Purpose

When a customer is having problems with his TV-set, he can
call his dealer. The service technician can then ask the
customer to activate the CSM, in order to identify the status of
the set. Now, the service technician can judge the severity of
the complaint. In many cases, he can advise the customer how
to solve the problem, or he can decide if it is necessary to visit
the customer.
The CSM is a read only mode; therefore, modifications in this
mode are not possible.

How to activate CSM

Key in the code “123654” via the standard RC transmitter.

Note: Activation of the CSM is only possible if there is no (user)

menu on the screen!

How to navigate

By means of the “CURSOR-DOWN/UP” knob on the RC­transmitter, you can navigate through the menus.

Contents of CSM

CUSTOMER SERVICE MENU 1

• SOFTWARE VERSION (example: TL31EU_1.0_01234).

Displays the built-in software version. In case of field
problems related to software, software can be upgraded.
You will find details of the software versions in the chapter
“Software Survey” of the “Product Survey - Colour
Television” publication. This publication is generated four
times a year. As this software is consumer upgradable, it
will also be published on the Internet.

• SET TYPE. This information is very helpful for a help desk/
workshop as reference for further diagnosis. In this way, it
is not necessary for the customer to look at the rear of the
TV-set.

• Production Code. Displays the production code of the TV.

• CODE 1. Gives the latest five errors of the error buffer. As

soon as the built-in diagnose software has detected an
error the buffer is adapted. The last occurred error is
displayed on the leftmost position. Each error code is
displayed as a 2-digit number. When less than 10 errors
occur, the rest of the buffer is empty (00). See also
paragraph Error Codes for a description.

•

CODE 2. Gives the first five errors of the error buffer. See
also paragraph Error Codes for a description.

• VOLUME. Gives the last status of the volume as set by the
customer. The value can vary from 0 (volume is minimum)
to 100 (volume is maximum). Volume values can be
changed via the volume key on the RC-transmitter.

• BRIGHTNESS. Gives the last status of the brightness as
set by the customer. The value can vary from 0 (brightness
is minimum) to 100 (brightness is maximum). Brightness
values can be changed via the “CURSOR LEFT” and

EN 14 FTL3.1E AA5.

Service Modes, Error Codes, and Fault Finding

“CURSOR RIGHT” keys on the RC-transmitter after
pressing the “MENU” button and selecting “PICTURE” and
“BRIGHTNESS”.

• CONTRAST. Gives the last status of the contrast as set by

the customer. The value can vary from 0 (contrast is
minimum) to 100 (contrast is maximum). Contrast values
can be changed via “CURSOR LEFT” and “CURSOR
RIGHT” keys on the RC-transmitter after pressing the
“MENU” button and selecting “PICTURE” and
“CONTRAST”.

• COLOUR. Gives the last status of the colour saturation, as

set by the customer. The value can vary from 0 (colour is
minimum) to 100 (colour is maximum). Colour values can
be changed via “CURSOR LEFT” and “CURSOR RIGHT”
keys on the RC-transmitter after pressing the “MENU”
button and selecting “PICTURE” and “COLOUR”.

• HUE. Only relevant for NTSC-signals (e.g. some NTSC-

DVD-discs).

CUSTOMER SERVICE MENU 2

• SHARPNESS. Gives the sharpness value. The value can

vary from 0 (sharpness is minimum) to 7 (sharpness is
maximum). In case of bad antenna signals, a too high
value of the sharpness can result in a noisy picture.
Sharpness values can be changed via the “CURSOR
LEFT” and “CURSOR RIGHT” keys on the RC-transmitter
after pressing the “MENU” button and selecting “PICTURE”
and “SHARPNESS”.

• HEADPHONE VOLUME. Gives the last status of the head

phone volume, as set by the customer. The value can vary
from 0 (volume is minimum) to 100 (volume is maximum).
Head phone volume values can be changed via the
“CURSOR LEFT” and “CURSOR RIGHT” keys on the RC­transmitter after pressing the “MENU” button and selecting
“SOUND” and “HEADPHONE VOLUME”.

• DOLBY. Indicates whether the received transmitter

transmits Dolby sound (“ON”) or not (“OFF”). Attention: The
presence of Dolby can only be tested by the software on
the Dolby Signalling bit. If a Dolby transmission is received
without a Dolby Signalling bit, this indicator will show “OFF”
even though a Dolby transmission is received.

• SURROUND MODE. Indicates the by the customer

selected surround mode (or automatically chosen mode).
Possible values are “OFF”, “INCREDIBLE SURROUND”
OR “DOLBY VIRTUAL”. These settings can be influenced
after pressing the “MENU” button and selecting “SOUND”
and SURROUND MODE”. It can also have been selected
automatically by signalling bits (internal software).

• TUNER FREQUENCY. Indicates the frequency the

selected transmitter is tuned to. The tuner frequency can
be changed via the “CURSOR LEFT” and “CURSOR
RIGHT” keys for fine tune after opening the installation
menu and selecting “INSTALL” and “MANUAL INSTALL”.

• DIGITAL OPTION. Gives the selected digital mode,

“PROGRESSIVE SCAN”, “MOVIE PLUS” or “PIXEL
PLUS”. Change via “MENU”, “PICTURE”, “DIGITAL
OPTIONS”.

• TV SYSTEM. Gives information about the video system of

the selected transmitter.

– West Europe
– East Europe
– UK

CUSTOMER SERVICE MENU 3

• BALANCE. Indicates the balance settings, between “-50”

and “+50”. Change via “MENU”, “SOUND”, and
“BALANCE”.

• CENTRE MODE. Not applicable.

• DNR. Gives the selected DNR setting (Dynamic Noise

Reduction), “OFF”, “MINIMUM”, “MEDIUM”, or
“MAXIMUM”. Change via “MENU”, “PICTURE”, “DNR”

• NOISE FIGURE. Gives the noise ratio for the selected

transmitter. This value can vary from 0 (good signal) to 127
(average signal) and to 255 (bad signal). For some

software versions, the noise figure will only be valid when
“Active Control” is set to “medium” or “maximum” before
activating CSM.

• SOURCE. Indicates which sourcehe is used and the video/

audio signal quality of the selected source. (Example:
Tuner, Video/NICAM) Source: “TUNER”, “EXT1”, “EXT2”,
“EXT3”, “EXT4”, “SIDE”, “AV1”, “AV2”, “AV3” or “AV4”.
Video signal quality: “VIDEO”, “S-VIDEO”, “RGB 1FH”,
“YPBPR 1FH 480P”, “YPBPR 1FH 576P”, “YPBPR 1FH
1080I”, “YPBPR 2FH 480P”, “YPBPR 2FH 576P”, “YPBPR
2FH 1080I”, “RGB 2FH 480P”, “RGB 2FH 576P” or “RGB
2FH 1080I”. Audio signal quality: “STEREO”, “SPDIF 1”,
“SPDIF 2”, or “SPDIF”.

• AUDIO SYSTEM. Gives information about the audible

audio system: Analogue in: no dig audio”, “not supported
dig audio”, “stereo”, “mono”, “mono selected”, “dual I”,
“dual II”, “NICAM stereo”, “NICAM mono”, “NICAM dual I”,
“NICAM dual II”, “NICAM available”, “Dolby digital x/y” (x/y
must be replaced by numerals depending on the signal
type), “Dolby digital dual I”, “Dolby digital dual II”, “digital
stereo”, “dual I”, “dual II”, “MPEG 2/0”, “DVD virtual
surround”.

• TUNED BIT. Gives information about the tuning method of

the stored pre-set. If a channel is found via “automatic
installation”, you will see the value “YES”. When you
change this (automatically found) frequency via “fine tune”
adjustment (installation menu - manual installation), the
displayed value will change to “NO”. Therefore, when you
see the value “NO” in this line, it is an indication that the
received channel is a non-standard signal (e.g. of a VCR).

• SURROUND SPEAKERS. Not applicable in this set.

• ON TIMER. Indicates if the “On Timer” is set “ON” or “OFF”

and if the timer is “ON” also displays start time, start day
and program number. Change via “MENU”, “TV”,
“FEATURES”, and “ON TIMER”.

• PRESET LOCK. Indicates if the selected preset has a child

lock: “LOCKED” or “UNLOCKED”. Change via “MENU”,
“TV”, “FEATURES”, “CHILD LOCK”, and “CUSTOM
LOCK”.

CUSTOMER SERVICE MENU 4

• CHILD LOCK. Indicates the last status of the general child

lock: “UNLOCK”, “LOCK”, or “CUSTOM LOCK”. Change
via “MENU”, “TV”, “FEATURES”, “CHILD LOCK”, and
“LOCK”.

• LOCK AFTER. Indicates at what time the child lock is set:

“OFF” or e.g. “18:45” (lock time). This is only displayed if
child lock is set to “CUSTOM LOCK”

• PROGRAM CATEGORY. This is an EPG feature and not

applicable for this chassis.

CUSTOMER SERVICE MENU 5

• OPTIONS 1. Gives the option codes of option group 1 as

set in SAM (Service Alignment Mode).

• OPTIONS 2. Gives the option codes of option group 2 as

set in SAM (Service Alignment Mode).

• AVL. Indicates the last status of AVL (Automatic Volume

Level): “ON” or “OFF”. Change via “MENU”, “TV”,
“SOUND”, “AVL”

• DELTA VOLUME. Indicates the last status of the delta

volume for the selected preset as set by the customer: from
“-12” to “+12”. Change via “MENU”, “TV”, “SOUND”,
“DELTA VOLUME”.

How to exit CSM

Use one of the following methods:

• After you press a key on the RC-transmitter (with exception
of the “CHANNEL +/-”, “VOLUME” and digit (0-9) keys), or

• After you switch the TV-set “OFF” with the mains switch.

Service Modes, Error Codes, and Fault Finding

EN 15FTL3.1E AA 5.

5.3 Stepwise Start-up

The stepwise start-up method, as known from the EM sets is
not valid any more. Because there are only three steps, and all
protections occur before the 2nd step, the “old” method was not
useful any more.
The situation for this chassis is as follows: when the TV is in a
protection state (and thus blinking an error) and SDM is
activated via shortcutting the pins on the SSB, the TV starts up
until it reaches the situation just before protection. So, this is a
kind of automatic stepwise start-up. In combination with the
start-up diagrams at the end of this chapter (see flow chart
figures), you can see which supplies are present at which state.

The abbreviations SP and MP are standing for:

– SP: protection or error detected by the Stand-by

Processor.

– MP: protection or error detected by the Viper Main

Processor.

5.4 ComPair

5.4.1 Introduction

ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (service remote control),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:

• ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.

• ComPair allows very detailed diagnostics (on I
is therefore capable of accurately indicating problem areas.
You do not have to know anything about I
yourself because ComPair takes care of this.

• ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.

2

C level) and

2

C commands

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.

5.4.3 How To Connect

This is described in the chassis fault finding database in
ComPair.

TO

UART SERVICE

CONNECTOR

PC VCR I2CPower

Figure 5-1 ComPair interface connection

5.4.4 How To Order

TO
I2C SERVICE
CONNECTOR

9V DC

E_06532_021.eps

180804

5.4.2 Specifications

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:

• Automatic (by communication with the television): ComPair
can automatically read out the contents of the entire error
buffer. Diagnosis is done on I
access the I
send and receive I

2

C/UART bus of the television. ComPair can

2

C/UART commands to the micro

2

C/UART level. ComPair can

controller of the television. In this way, it is possible for
ComPair to communicate (read and write) to devices on

2

the I

C/UART busses of the TV-set.

• Manually (by asking questions to you): Automatic
diagnosis is only possible if the micro controller of the
television is working correctly and only to a certain extend.
When this is not the case, ComPair will guide you through
the 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

ComPair order codes (EU/AP/LATAM):

• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.

• ComPair interface (excluding transformer): 4822 727

21631.

• Starter kit ComPair32 software (registration version): 3122
785 60040.

• Starter kit SearchMan32 software: 3122 785 60050.

• ComPair32 CD (update): 3122 785 60070 (year 2002,

3122 785 60110 (year 2003).

• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003), 3122 785 60130 (year 2004).

• ComPair firmware upgrade IC: 3122 785 90510.

• Transformer (non-UK): 4822 727 21632.

• Transformer UK: 4822 727 21633.

• ComPair UART interface cable: 3122 785 90630

Note: If you encounter any problems, contact your local
support desk.

5.5 Error Codes

5.5.1 Introduction

The error code buffer contains all detected errors since the last
time the buffer was erased. The buffer is written from left to

EN 16 FTL3.1E AA5.

Service Modes, Error Codes, and Fault Finding

right, new errors are logged at the left side, and all other errors
shift one position to the right.
When an error has occurred, the error is added to the list of
errors, provided the list is not full or the error is a protection
error.
When an error occurs and the error buffer is full, then the new
error is not added, and the error buffer stays intact (history is
maintained), except when the error is a protection error.
To prevent that an occasional error stays in the list forever, the
error is removed from the list after 50+ operation hours.
When multiple errors occur (errors occurred within a short time
span), there is a high probability that there is some relation
between them.

5.5.2 How to read the Error Buffer

Use one of the following methods:

• On screen via the SAM (only if you have a picture).
Examples:

– 00 00 00 00 00: No errors detected
– 06 00 00 00 00: Error code 6 is the last and only

detected error

– 09 06 00 00 00: Error code 6 was first detected and

error code 9 is the last detected error

• Via the blinking LED procedure (when you have no
picture). See next paragraph.

• Via ComPair.

5.5.3 How to clear the Error Buffer

Use one of the following methods:

• By activation of the “RESET ERROR BUFFER” command
in the SAM menu.

• With a normal RC, key in sequence “MUTE” followed by
“062599” and “OK”.

• When you transmit the commands “DIAGNOSE” - “99” ­“OK” with ComPair (or with a DST).

• If the content of the error buffer has not changed for 50+
hours, it resets automatically.

5.5.4 Error Codes

In case of non-intermittent faults, clear the error buffer before
you begin the repair. This to ensure that old error codes are no
longer present. Before clearing the buffer, write down the
content, as this history can give you significant information.
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
code and not the actual cause (e.g., a fault in the protection
detection circuitry can also lead to a protection).
There are several mechanisms of error detection:

• Via error bits in the status registers of ICs (not used in this
chassis).

• Via polling on I/O pins going to the Stand-by
microprocessor.

• Via sensing of analogue values on the Stand-by
microprocessor (ADC).

• Via a “not acknowledge” state of an I

The errors can be divided into two blocks:

• Errors detected via the stand-by processor (stand-by
software): Errors detected via the stand-by processor

cause a protection. These errors are NOT logged but
blinked via the front led. You do not have to start the
blinking LED procedure manually; it starts automatic when
a protection occurs.

• Errors detected via the Viper (main software): Errors
detected via the Viper do not cause a protection; these
errors are logged in the error buffer.

2

C IC-communication.

Table 5-1 Error code overview

Error Device Description Defective Module Expected result
5 PNX8550 Viper doesn't boot Control Protection + error 5 blinks
6 n.a. 5V supply +5V Supply Protection + error 6 blinks
7 n.a. 8V6 supply +8V Supply Protection + error 7 blinks
8 n.a. 1.2V DC/DC +1V2 Supply Protection + error 8 blinks
9 n.a. 2.5V DC/DC +2V5 Supply Protection + error 9 blinks
11 n.a. 3.3V DC/DC +3V3 Supply Protection + error 11 blinks
12 n.a. 12V supply +12V Supply Protection + error 12 blinks
13 n.a. Audio Supply Audio Supply Protection + error 13 blinks
14 n.a. Class D Class D Supply Protection + error 14 blinks
15 PNX3000 MPIF1 POR not available IF IO Error 15 logged
17 PNX3000 MPIF1 audio supply (ASUP) IF IO Error 17 logged
18 PNX3000 MPIF1 ref. freq. (ROK) IF IO Error 18 logged
25 n.a. Supply Fault DC-DC Supply Protection + error 25 blinks
29 PNX2000 AVIP1 AV Input Processor Error 29 logged
32 PNX3000 MPIF1 Analog Front End 1 Error 32 logged
34 UV1318/TEDH700A Tuner1 Tuner 1 Error 34 logged
38 PCA9555 I/O expander audio Audio IO expander Error 38 logged
43 TDA8751 Hi Rate Front End HDMI Error 43 logged
44 M24C32 Main NVM NVM Error 44 blinks
45 T6TU5XB Columbus 1 Comb filter Error 45 logged

Service Modes, Error Codes, and Fault Finding

EN 17FTL3.1E AA 5.

5.6 The Blinking LED Procedure

5.6.1 Introduction

The blinking LED procedure can be split up into two situations:

• Blinking LED procedure in case of protection. In case the
TV gets in a protection state, the error is automatically
blinked. This will be only one error, namely the one that’s
causing the protection. Therefore, you do not have to do
anything special, just read out the blinks. Long blink
indicates the decimal digit, short blink indicates the units.

• Blinking LED procedure in the "on" state. Via this
procedure, you can make the contents of the error buffer
visible via the front LED. This is especially useful for fault
finding, when there is no picture.

When the blinking LED procedure is activated in the “ON” state,
the front LED will show (blink) the contents of the error-buffer.
Error-codes > 10 are shown as follows:

1. A long blink of 750 ms (which is an indication of the decimal
digit),

2. A pause of 1.5 s,

3. “n” short blinks (where “n”= 1 - 9),

4. When all the error-codes are displayed, the sequence

finishes with a LED blink of 3 s,

5. The sequence starts again.

Example: Error 12 9 6 0 0.
After activation of the SDM, the front LED will show:

1. 1 long blink of 750 ms (which is an indication of the decimal
digit) followed by a pause of 1.5 s,

2. 2 short blinks of 250 ms followed by a pause of 3 s,

3. 9 short blinks followed by a pause of 3 s,

4. 6 short blinks followed by a pause of 3 s,

5. 1 long blink of 3 s to finish the sequence,

6. The sequence starts again.

communication will have to initiate a protection mode since
safety cannot be guaranteed any more.

These protections use various mechanisms of detection:

• Via error bits in the status registers of ICs (not used in this
chassis).

• Via polling on I/O pins going to the Stand-by
microprocessor.

• Via sensing of analogue values on the Stand-by
microprocessor (ADC).

• Via a “not acknowledge” state of an I

Remark on both Protect-Audio and Audio-Supply-Prot:

The monitoring of these observers should only start 1 s after
switching “on” the audio supply (enabling main supply through
STAND-BY line toggling, see start-up description) because
some peak currents could be drawn out of the supply during
start-up falsely indicating a protection situation.

Remark on the supply errors:
The detection of a supply dip or supply loss during the normal
playing of the set does not lead to a protection, but to a cold
reboot of the set.

Protections during start-up of the set.

During start-up of the set some voltages and IC observers are
actively monitored, to be able to optimise the start-up speed
and to assure good operation of all components. If these
monitors do not respond in a defined way, this indicates a
malfunction of the system and leads to a protection.

Overview of the start-up protections:

• Nominal level detection of the +1.2V, +2.5V, +3.3V, +5V,
+8.6V, and +12V.

• Viper does not boot.

2

C IC-communication.

5.6.2 How to Activate

Use one of the following methods:

• Activate the SDM (only via soldering pads marked “SDM”
on SSB). The blinking front LED will show the entire
contents of the error buffer (this works in “normal
operation” mode).

• Transmit the commands “MUTE” - “062500” - “OK” with a
normal RC. The complete error buffer is shown. Take
notice that it takes some seconds before the blinking LED
starts.

• Transmit the commands “MUTE” - “06250x” - “OK” with a
normal RC (where “x” is a number between 1 and 5). When
x= 1 the last detected error is shown, x= 2 the second last

error, etc.... Take notice that it takes some seconds before

the blinking LED starts.

• “DIAGNOSE X” with the DST (where “x” is a number
between 1 and 9). When x= 1 the last detected error is

shown, x= 2 the second last error, etc.... When x= 0 all

errors are shown.

5.7 Protections

Most of the protections and errors use either the Stand-by
microprocessor or the Viper controller as detection
mechanism. Since in these cases, checking of observers,
polling of ADCs, and filtering of input values are all heavily
software based, these protections are referred to as “software
protections”.
There are several types of software related protections, solving
a variety of fault conditions:

• Protections related to supplies: check of the 12V, +5V,
+8V6, +1.2V, +2.5V and +3.3V.

• Protections related to breakdown of the safety check
mechanism. E.g. since a lot of protection detections are

done by means of the Viper, failing of the Viper

EN 18 FTL3.1E AA5.

5.8 Repair Tips

Set is connected to Mains

Service Modes, Error Codes, and Fault Finding

No operation

ON/OFF switch is "on"

Standby LED

is "on"?

Ye s

Set is in standby.

Switch set "on" via local Keyboard or RC

Check if LEDs

on SSB are "on"?

Ye s

No

No

Check 300V from Mains Filter on connector 1306.

Warning: Primary (hot) ground!

Check fuse1401

If 300V Mains Filter is OK, check

Standby Supply output voltages

conn. 1M46 on SSB: 5V2 on pin 7

disconnect 1M46 and check Standby Supply

Is relay 1450

closed?

If 5V2 is not OK,

No

Check LEDs on SSB

See figure “Power Supply indicators”

& LED overview

Ye s

Check 12V from Main Supply to Standby

Supply conn. 1304 pin 3 & 4

Is 12V OK?

Ye s

Check Power supply to SSB:

Conn. 1M46 5V_SW, 8V6, 12V, VTUN.

See diagram SA1

Figure 5-2 First line fault find tree

Check standby line

Conn. 1M03
5V2 on pin 9

pin 7 must be "low"

No

Main Supply defective:

Short circuit on MS?

Repair Main Supply

Short circuit on SSB?

E_14700_067.eps

121104

Service Modes, Error Codes, and Fault Finding

5.8.1 Power Supply

The LEDs on the SSB show the presence/absence of several
voltages (see also figure “Power supply indicators”)

Table 5-2 LED overview

LED Detected Voltage Diagr. Remarks
6G06 +5VDisp B9D Switches "on" when the display is activated.
6H00 Reset MIPS B6A This line is active "low" during start-up (LED="off"). After start-up conditions are met, the LED switches "on".
6T06 Visual check B3 Switches "off" in case of SECAM L/L' reception (this line selects the correct SAW filter).
6T07 VTUN1 B3 Indicates if the 33 V tuner voltage is present.
6U19 +V5D B1 Indicates if the 5VD voltage is present.
6U20 +3V3 B1 Indicates if the 3V3 voltage is present.
6U21 +2V5 B1 Indicates if the 2V5 voltage is present.
6U22 +1V2 B1 Indicates if the 1V2 voltage is present.

EN 19FTL3.1E AA 5.

TUNER

6G06

6H00

SDM

6T066T07

6U22

6U20

6U21

6U19

E_14700_066.eps

221004

Figure 5-3 Power supply indicators

Brief description of the succession of the supply voltages
availability on the SSB:

When (conditions) Then (should be available)
+5V2= +5.2V +2V5D (to supply DDRAM)

+12VSW

+12VS= +12V
+5V2= +5.2V

12V_SWITCH=low
and +5V=5V

ENABLE-1V2= low +1V2
ENABLE-2V5= low +2V5 & +2V8
ENABLE-3V3= low +3V3
All enabled SUPPLY_FAULT = high

EN 20 FTL3.1E AA5.

In case of a wrong value of the output voltages (or no output
voltages) check:

• The value of signals 12V_SWITCH, ENABLE_1V2,
ENABLE_2V5, ENABLE_3V3 and SUPPLY_FAULT and
the availability of +5V.

• The value of +12VSW and the supply voltages for the IC
controllers (pin 9, about +12 V).

• The switching frequency (250 kHz) and duty cycle of each
DC/DC converter.

• Short-circuits to GND of output voltages.

• Missing or incorrect value of components.

The values of the supply voltages and their ramp-up times:

Name Value and tolerance Ramp-up time
+1V2 1.26 V ±4% 6 ms ±3 ms
+2V5 2.6 V ±5% 4 ms ±2 ms
+2V5D 2.6 V ±5% 4 ms ±2 ms
+2V8 2.95 V ±10% 4 ms ±2 ms
+3V3 3.38 V ±5% 4 ms ±2 ms

5.8.2 MPIF

Important things to make the MPIF work:

• Supply of 5 V.

• Clock signal of 13.5 MHz from the AVIP.

2

• I

C from the VIPER.

Service Modes, Error Codes, and Fault Finding

5.8.3 AVIP

Important things to make AVIP operational.

• Supply 1.8 V and 3.3 V for video.

• Supply 3V3-AUD, 5V-AUD, and 8V-AUD for audio.

• Reset pulse (RESET_MIPS) from VIPER (visible via LED

6H00).

• Clock 13.5 MHz from VIPER.

2

• I

C from VIPER.

Service Modes, Error Codes, and Fault Finding

EN 21FTL3.1E AA 5.

5.9 Software Upgrading

In this chassis, you can upgrade the main software via a USB
stick or memory card.

5.9.1 Introduction

It is possible for the user to upgrade the main software via the
USB port. This allows replacement of a software image in a
standalone set, without the need of an E-JTAG debugger. A
description on how to upgrade the software can be found in
chapter 3 "Directions For Use".

The set software is stored in a 128 Mbit (16 MB) NAND-Flash,
which is connected to the VIPER via the PCI bus.
The NAND-Flash used is a TC58DVM72F1TG10. It is a serial­type memory device, which utilises the I/O pins for both
address and data input/output as well as for command inputs.
The Erase and Program operations are automatically
executed. To access the data in the NAND-flash, three Octal
Bus Transceiver circuits are used (74LVC245).

5.9.2 Procedure

The software image resides in the NAND-Flash, and is
formatted in the following way:

Partition 1 14.5 MB

Trimedia2 image
Trimedia1 image
MIPS image

Partition 0 Almost 1.5 MB

USB Download Application

uBTM (boot block = 16k)

Figure 5-4 NAND-Flash format

USB CUSTOMER

USB SERVICE

EJTAG

E_14700_082.eps

091104

Partition 0

To upgrade the USB download application (partition 0 except
the bootblock), insert an USB stick with the correct software,
but press the “red” button on the remote control (in ”TV” mode)
when it is asked via the on screen text.

Caution:

• The USB download application will now erase both

partitions (except the boot block), so you need to reload the
main SW after upgrading the USB download application.
As long as this is not done, the USB download application
will start when the set is switched “on”.

• When something goes wrong during the progress of this
method (e.g. voltage dip or corrupted software file), the set
will not start up, and can only be recovered via the EJTAG
tool!

Software upgrade via EJTAG

If the "Partition 0" software is corrupted or in case of a new
(empty) NAND-Flash, the "Partition 0" software needs to be
installed.
This is possible in dedicated workshops with special tools like
the EJTAG probe with software, or via the procedure described
below.

5.9.3 Manual Start of Software Upgrade Application

Partition 1

It is possible to force the TV into the software upgrade
application, but normally this is not needed, as the TV will
automatically detect when a memory device with upgrade
software is connected.
To force the TV into the software upgrade mode:

• Disconnect the TV from the mains.

• Press the “OK” button on a Philips DVD RC-6 remote

control (it is also possible to use the TV remote in “DVD”
mode).

• Keep the “OK” button pressed while connecting the TV to
the mains.

• The software upgrade application will start.

• When a memory device with upgrade software is

connected, the upgrade process will start.

Executables are stored as files in a file system. The boot loader
(uBTM) will load the USB Download Application in partition 0
(USB drivers, bootscript, etc). This application makes it then
possible to upgrade the main software via USB.

Software can be upgraded in two ways:

• Via the USB port.

• Via an external EJTAG tool.

Installing "Partition 0" software is possible via an external
EJTAG tool, but also in a special way with the USB stick (see
description in paragraph “Manual Start of Software Upgrade
Application“).

Programming of an empty NAND-Flash is only possible via an
external EJTAG tool.

Software upgrade via USB

To do a software upgrade (partition 1) via USB, the set must be
operational, and the "Partition 0" files for the VIPER must be
installed in the NAND-Flash!

The new software can be uploaded to the TV by using a
portable memory device or USB storage compliant devices
(e.g. USB memory stick). You can download the new software
from the Philips website to your PC.

5.10 Start-up flow charts

In the following flow charts, the start-up behaviour of the
chassis is described.

Off

Mains

Stand-by

On

off

- WakeUp

- Acquisition needed

Acquisition

Ended

Mains

on

stand-

GoToProtection

Semi

by

WakeUp

GoToSleep

WakeUp

Protection

Active

GoToProtection

E_14700_094.eps

121104

Figure 5-5 Transition diagram

EN 22 FTL3.1E AA5.

Service Modes, Error Codes, and Fault Finding

Stand-by or

Protection

If the protection state was left by short-

circuiting the SDM pins, detection of a

protection condition during start-up will stall

the start-up. Protection conditions in a playing

set will be ignored. The protection mode will

not be entered.

Switch SOUND_ENABLE and RESET_AUDIO
to "high". They are "low" in the Stand-by mode

if this mode lasted longer than 2 s.

Off

Mains is applied.

Stand-by supply starts running.

+5.2V becomes present.

Stand-by µP resets.

All I/O lines have a High default state:

- Assert the Viper reset.

- SOUND_ENABLE and RESET_AUDIO
should remain "high".

Initialise I/O pins of the St-by µP, start
keyboard scanning, RC detection, P50

decoding

Wake up reasons are "off".

Enable main supply by switching

STAND-BY line "low".

+12V, +5V and +8V6 are

switched "on".

Wait 50 ms and then start polling the

DETECT_5V, DETECT_8V6 and

DETECT_12V every 40 ms.

DETECT_5V
received within 300 ms
after Stand-by toggle?

Yes

Activate +5V supply detection algorithm.

action holder: MIPS

action holder: St-by

autonomous action

SP:

protection or error detected by

the Stand-by Processor (see Protection flow chart).

MP:

protection or error detected by

the Viper Main Processor

The availability of the supplies is checked through detect signals
(delivered by dedicated detect ICs) going to the St-by µP. These

signals are available for +12V, +8V6, +5V, +1V2, and +2V5. A "low" to

"high" transition of the signals should occur within a certain time after

If an observer is detected before the time-out elapses, of course, the

toggling the STAND-BY line.

process should continue in order to minimise start up time.

No

+5V error.

(see Protection flow chart)

SP

.

No

DETECT_12V and

DETECT_8V6 received within 2000

ms after Stand-by toggle?

Activate +12V and +8V6 supply

detection algorithm.

Enable the +12VS.

Wait 40ms.

Enable the DC/DC converter for +1.2V.

Wait 50 ms

Start polling the detect-1V2 every 40 ms

DETECT_1V2

received within 250 ms?

Enable the DC/DC converters for

+2.5V and +3.3V.

Wait 50 ms.

Start polling the DETECT_2V5

and DETECT_3V3 every 40 ms.

DETECT_2V5 and

DETECT_3V3 received within 250

To P ar t 2

No

Yes

+12V or +8V6 error.

SP

3th retry?

Yes

Viper boot error

1

From Part 2

SP

No

Yes

ms?

Yes

2

+2.5V or +3.3V errorNo

+1.2V error

SP

SP

E_14700_095.eps

121104

Figure 5-6 “Off” to “Semi Stand-by” flow chart (part 1)

Service Modes, Error Codes, and Fault Finding

EN 23FTL3.1E AA 5.

No

Release Viper reset

Feed warm boot script(2)

From Part 1

Activate supply detection algorithms for +1.2V,

Enable the supply fault detection interrupt.

Detect EJTAG debug probe (pull pin of the

probe interface to ground by inserting EJTAG

2

+2.5V and +3.3V.

Wait 50 ms.

Is SUPPLY-FAULT

I/O line "high"?

Yes

Set I²C slave address

of Stand-by µP to (A0h)

probe).

EJTAG probe connected ?

No

Cold boot?

Yes

Release Viper reset

Feed cold boot script(1)

action holder: MIPS

action holder: St-by

autonomous action

SP:

protection or error detected by

the Stand-by Processor (see Protection flow chart).

MP:

protection or error detected by

the Viper Main Processor

Supply fault error.No

(see Protection flow chart)

SP

Yes

Release Viper reset. Feed initialising boot

script (3). Disable ALIVE mechanism

.

To Part 1

Bootscript reading

No

Switch standby line "high".

1

Switch "off" all supplies.

Switch Viper reset.

No

by Viper finished

in time?

Yes

Set I²C slave address

of Standby µP to (64h)

RPC start (comm. protocol)

Viper starts to communicate

in time?

Yes

Enable ALIVE check mechanism

MIPS reads the wake up reason

from Stand-by µP.

The AVIP received a hard reset when power

was applied.

AVIP must be started before the MPIF, in
order to have a good clock distribution.
AVIP default power-up mode is Standby.
The Viper instructs AVIP via I²C to enable all
the PLLs and clocks and hence enter to
FULL POWER mode.

MPIF must be initialised.
MPIF should deliver four observers:

- POR= 0; normal operation

- MSUP= 1: Main supply is present

- ASUP= 1; audio supply is present

- ROK= 1; reference frequency is present
(coming from AVIP)

All observers present with correct

state?

Indicate mode by flashing LED as long as

Viper does not starts to communicate.

Wait until Viper starts to communicate

Stepwise Startup 1 :PowerStandby
At this point, all supply voltages related to the
"SSB" are present and the Viper has booted
and is operational.

No

Appropriate Observer error

Yes

Initialise tuners.

Initialise Hirate (HDMI transmitter).

Initialise source selection.

Initialise video processing ICs Spider and

Columbus (if present)

Stepwise Startup 2 : Semi-standby state

Semi-Standby

Figure 5-7 “Off” to “Semi Stand-by” flow chart (part 2)

MP

E_14700_100.eps

121104

EN 24 FTL3.1E AA5.

Service Modes, Error Codes, and Fault Finding

action holder: MIPS

Semi Stand-by

action holder: St-by

autonomous action

Wait until previous "on" state is left more than

1 s ago (to prevent LCD display problems).

RGB video blanking and audio mute.

Initialize audio and video processing IC's and

Wait until QVCP generates a valid LVDS

Switch "on" 5V LCD supply
(Viper I/O: LCD-PWR-ON).

Switch "on" LVDS transmitter within a time

functions.

output clock.

frame of 25 ms.

Wait 250 ms

Stepwise Startup 3: On.

The normal "On" state

of the set

Switch "off" RGB blanking.

Switch "on" LCD lamp after valid, stable video,

corresponding to the requested output is

delivered by the Viper.

Switch Audio-Reset and sound enable "low"

and demute.

Active

Figure 5-8 “Semi Stand-by” to “Active” flow chart

E_14700_096.eps

121104

Service Modes, Error Codes, and Fault Finding

Active

Mute all sound outputs.

EN 25FTL3.1E AA 5.

action holder: MIPS

action holder: St-by

autonomous action

Switch "off" LCD lamp.

Mute all video outputs.

Switch "off" LVDS signal

(Viper I/O: PD-LVDS).

Switch "off" 5V LCD supply within 50 ms

after LVDS switch "off"

(Viper I/O: LCD_PWR_ON).

Semi Stand-by

E_14700_097.eps

121104

Figure 5-9 “Active” to “Semi Stand-by” flow chart

EN 26 FTL3.1E AA5.

Service Modes, Error Codes, and Fault Finding

Semi Stand-by

Wake up reasons are transferred to the Stand-

by µP.

Switch Viper in "reset" state.

Disable all supply related protections & switch

"off" the +2V5 and +3V3 DC/DC converter.

Wait 5 ms.

Switch "off" the remaining DC/DC converters.

action holder: MIPS

action holder: St-by

autonomous action

Switch stand-by line High / Assert Viper reset.

Stand-by

Figure 5-10 “Semi Stand-by” to “Stand-by” flow chart

Reset audio and sound-enable are released

2 s after entering Stand-by, to save power.

Important remark:

E_14700_098.eps

121104

Service Modes, Error Codes, and Fault Finding

EN 27FTL3.1E AA 5.

MP

Log the appropriate error and

set STAND-BY flag in NVM.

Redefine wake up reasons for protection

state and transfer to stand-by µP.

Switch "off" LCD lamp supply.

Wait 250 ms (min.= 200 ms).

Switch "off" LVDS signal.

SP

Switch "off" 12 V LCD supply within 0.01

ms to 50 ms after LVDS switch "off".

Ask stand-by µP to enter protection state.

Enter IDLE state in order to stop all commu­nication towards NVM to prevent corruption.

Wait for Viper to send IDLE_ENTERED

confirmation. Continue if not received within

several ms.

Switch "off" all DC/DC converters

(disable protections).

Switch stand-by line "HIGH".

Flash red LED in order to indicate protection

state.

Log the appropriate error in NVM.

action holder: MIPS

action holder: St-by

autonomous action

SP:

protection or error detected by

the Stand-by Processor.

Protection

Figure 5-11 Protection flow chart

MP:

protection or error detected by

the Main Processor (Viper).

E_14700_099.eps

121104

EN 28 FTL3.1E AA5.

Personal Notes:

Service Modes, Error Codes, and Fault Finding

E_06532_012.eps

131004

Block Diagrams, Testpoint Overview, and Waveforms

6. Block Diagrams, Testpoint Overview, and Waveforms

Wiring Diagram 32 Inch Sharp LCD

WIRING

29FTL3.1E AA 6.

8302

Memory

card

reader

8735

8736

SA

8315

8314

8318

2p3

1735

2p3

1736

n.c.

1738

7p

1M02

10p

1314

9p

1739

10p

1315

6p

1318

1304

1309

B

A

2p3

130613071305

4p

4p

1304

Audio
Stand-by

3p

11p

1M46

8346

10p

1M03

31p

8350

4p

3p

8304

8352

8309

1M52 1G50 1M46

9p

CN1 CN2

8307

1H01

USB

30p

1M17

7p

8317

8306

7p

8305

8303

11p

10p

1M031M201M011M36

12p

3p

1309

2p3

4p

1M02

7p

CN3CN4CN5

MF

Supply

6p

10p

Inverters

D

1M36

11p

Side I/O

USB

1H01

Top Control

6p

0345

E

LS

RIGHT

Tu ne r

splitter

1T01

J

0350

8320

1M21 1M010345

12P

LED

SSB

8345

6P 3P

8301

11p

40p

3p

8336

BE

1305 1306 1307

1035

1035

40p

Bottom I/O

EXT2

10p

2p3

1308

EXT3

8308

8335

AC inlet

3p

8335

1E35

LS

LEFT

E_14700_058.eps

041004

Block Diagrams, Testpoint Overview, and Waveforms

Block Diagram Supply + Standby 32 Inch

SUPPLY + STANDBY 32"

MAINS FILTER + STANDBY

A1

5401

1308

MAINS IN

EUR: 198 - 264V~
CHINA: 160 - 270V~
US: 108 - 132V~
APmulti: 90 - 175V~

2

1

1400

T3.15AH

5402
5403

MAINS

FILTER

EUR, CHINA 1X MAINS FILTER + HORMONIC COIL
US, AP 2X MAINS FILTER + IR INRUSH CURRENT

30FTL3.1E AA 6.

5040

2011

PRINTED
COMPONENT

HOT COLD

4

1

3

2

5002

8

7

9

10

11

12

3

5

13

14

15

16

HOT COLD

3057

7002
TCET1102

5027

5028

5025

5026

DC_PROT

3

2

2

3

3

2

2

3

1007

T5A

DC_PROT

6044
STPS20L45CT

1

6045
STPS20L45CT

1

6021
STPS20H100CT

1

6025
STPS20H100CT

1

2291

6291

6293

2293

3030

5239

5291

5292

2038

2021

3022

7010
TL431ACD

VSND_POS

GND_SND

VSND_NEG

3052

3024

3026

VS Voltage
Adj.

DC_PROT

+12V

+24V

1304

1M02

CONNECTIONS

SA1

1314

1
2

TO

3

DISPLAY

4
5

1315

1
2

TO

1M10

3
4
5

1
2

DISPLAY

TO

AL

AMBI LIGHT

(Optional)

SEE ALSO
BLOCK DIAGRAM
SUPPLY LINE

1304

4
3

2
1

TO 1M02

SA3

AUDI O

+12V_A

+12V_+24V

4
3

2
1

7

6

5

4

3

2

1

SUPPLY

A2

3000

5001

7007

6

7

14

4

2

12

10

7008

10

9

HIGH
SIDE

DRIVE

LOW
SIDE

DRIVE

60786079

2003

7005

STU16NB501

7006

STU16NB501

OVER

VOLTAGE

VCC

BIAS SUPPLY

15

OA

OB

FI

1450

2

3

4

1

6807
GBJ6J

3810

+

-

2816

25V_HOT

400V_HOT

3001

7017
7018

START

CURRENT

PROTECTION

SOFT

7001
MC34067P

1

OSCC

3007

CONTROL

7

ERROR

5

VREF

11

+

SOST

7004
7009

PROTECTION

6506
DF06M

HOT

COLD

+

-

2503

1401

T1AE

3101

(RES)

6155

(RES)

6154

(RES)

1305

1306

1307

1
2

3

1

2

1
2

3
4

SA2

1305

1
2

3

1306

1307

STANDBY

+5V2-RELAY-IO2

THYRISTOR
7505/7509/7560

1
2

400V_HOT

1
2

3
4

OVERVOLTAGE PROTECTION

STANDBY

7100
7101
7105

CONTROL

6150

6151

6153

7102

3155

3V MAX
1V MAX STBY

3108

COLD

HOT

5

3

2

1

5105

5500

5110

6

7

8

10

4

1

7501
TCET1102

3

2

3158

1

4

7150

2

TCET1102

3

7507
7506
7512

6504

3509

5103

3128

OVERVOLTAGE
PROTECTION

PROT-OVV

STANDBY

7511

6140

6505

2513

6122

5506

7531

+5V2

+5V2-RELAY-IO2

+5V2-RELAY-IO2

+12V_A

5507

STANDBY

STANDBY: LOW = ON
HIGH = STBY

7508

OR

9110

VTUN

+11V

+12V

+8V6

7131

+5V2

+5V_SW

POR

SA1

CONNECTIONS

STANDBY

E_14700_058.eps

1M03

1M46

1M18

041004

9

8

7

1
2
3

4
5

6
7

8
9

10
11

1
2

TO 1M03

B10

CONNECTIONS

TO 1M46

B10

B21

CONNECTIONS

TO

DISPLAY