Philips F22RE Schematic
Colour Television Chassis
F22RE
AA
CL 36532021_000.EPS
Contents Page Contents Page
1 Technical Specifications, Connection Facilities,
and Chassis Overview 2
2 Safety Instructions, Maintenance, 6
Warnings, and Notes
3 Directions for Use 7
4 Mechanical Instructions 22
5 Service Modes, Error Codes, 25
Faultfinding, and Repair Tips.
6 Block Diagrams
Wiring Diagram 33
Block Diagram (Video) 34
Block Diagram (Audio + Supply) 35
Powerlines Overview 36
2
I
C IC’s Overview 37
Testpoint Overviews (AV + PS) 38
Testpoint Overviews (K + L + M) 39
7 Electrical Diagrams and PWB lay-outs Diagram PWB
AV Interface Panel (Diagram AV1) 40 48-50
HD Matrix + Sync Remover (Diagram AV2) 41 48-50
Sync Processing (Diagram AV3) 42 48-50
VGA / HD Selection (Diagram AV4) 43 48-50
Output Selection + Supply (Diagram AV5) 44 48-50
YPBPR RGB Matrix (Diagram AV6)45 48-50
Video + RC Selection (Diagram AV7) 46 48-50
Audio + Control (Diagram AV8) 47 48-50
2D Comb Filter Add-on (Diagram CF) 51 51
Front Panel (Diagram FP1) 52 53
SSB: Tuner, IF, Sourse Select and Video
Processing (Diagram K1) 54 61-66
SSB: Input/Output (Diagram K2) 55 61-66
SSB: Sound Processing (Diagram K3) 56 61-66
SSB: Audio Dolby (Diagram K4) 57 61-66
SSB: Video Control+ Geometry (Diagram K6) 58 61-66
SSB: TXT + Control (Diagram K7) 59 61-66
©
Copyright 2003 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.
SSB: Source Sel. (add to K1) (Diagram K8) 60 61-66
Feature Box 7: Feature Box (Diagram L1) 67 70-71
Feature Box 7: Eagle (Diagram L2) 68 70-71
Feature Box 7: Falconic (Diagram L3) 69 70-71
DW: Tuner + IF (Diagram M1) 72 77-78
DW: Selector Switches (Diagram M2) 73 77-78
DW: Filters + Buffers (Diagram M3) 74 77-78
DW: Dual Screen IC + Memory (Diagram M4) 75 77-78
DW: Audio (Diagram M5) 76 77-78
Power Supply (Diagram PS) 79 80-81
SD Connector Panel (Diagram SD) 82 83
8 Electrical Alignments 85
9 Circuit Descriptions 91
List of Abbreviations 107
IC-Data 109
10 Spare Parts List 115
11 Revision List 124
180303
Published by WO 0364 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 13171
EN 2 F22RE AA1.
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter:
1. Technical Specifications
1. Reception
2. Miscellaneous
2. Connections
1. Front Connections
2. Rear Connections
3. Chassis Overview
1.1 Technical Specifications
1.1.1 Reception
Tuning system : PLL
Colour systems : PAL B/G,D/K,I
Sound systems : FM/AM-mono
1.2 Connections
1.2.1 Front Connections
: SECAM B/G,D/K,L/L1
: FM/FM B/G, Czech
: NICAM B/G,D/K,I,L
FRONT VIEW
A/V connections : PAL B/G,D/K,I
: SECAM B/G,D/K,L/L1
: NTSC4.43 (playback
only)
Channel selections : 125 channels
: Full cable, UVSH
Aerial input : 75 ohm, IEC-type
1.1.2 Miscellaneous
Mains voltage : 95 - 264 Vac
Mains frequency : 50 - 60 Hz
Ambient temperature : + 5 to + 45 deg. C
Maximum humidity : 90% R.H.
Power ON dissipation : 28 W typical
Power OFF dissipation : 0.2 W typical
Standby Power dissipation : 0.6 W Typical
Weight : 4 kg
Dimensions (WxHxD) : 435 x 100 x 330 mm
Power
L
R
Audio
EXTERNAL 3
Video
S-
Video
IR-Service
IR reciever
(send)
EXTERNAL 4
Menu/OK
Volume
+-
IR-Service
(reciever)
REAR VIEW
CH/PR
-+
Center In
No Function
R
L
Audio out
EXTERNAL 1
EXTERNAL 2
RLPrYPb
Video Audio
External 5
VGA1-in
Figure 1-1 Front and rear connections
PC/MAC
In
(15p)
L
R
L
Monitor
R
VGA2-out
(15p)
out
Mains
~
CL 36532030_016.eps
170403
Technical Specifications, Connections, and Chassis Overview
EN 3F22RE AA 1.
Audio/Video - In
1 - Audio L 2.5 V_rms/33 kohm
2 - Audio R 2.5 V_rms/33 kohm
3 - Video CVBS 1 V_pp/75 ohm
4 - Headphone 100 mW/8 ohm
15mW/2 kohm
SVHS - In
1 - Y Ground
2 - C Ground
3 - Y 1 V_pp/75 ohm
4 - C 0.3 V_pp/75 ohm
1.2.2 Rear Connections
Aerial - In
1 - IEC-type Coax, 75 ohm
Audio - Out (Constant Level)
1 - Audio L 0.5 V_rms/10 kohm
2 - Audio R 0.5 V_rms/10 kohm
EXT1: SCART - In/Out (RGB, CVBS)
121
CL96532137_056.eps
202
171199
Figure 1-2 SCART connector
1 - Audio - R 0.5 V_rms/1 kohm
2 - Audio - R 0.5 V_rms/10 kohm
3 - Audio - L 0.5 V_rms/1 kohm
4 - Audio Ground
5 - Blue Ground
6 - Audio - L 0.5 V_rms/10 kohm
7 - Blue 0.7 V_pp/75 ohm
8 - CVBS-status 0 - 1.3 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9 - Green Ground
10 -
11 - Green 0.7 V_pp/75 ohm
12 -
13 - Red Ground
14 - RGB-status Ground
15 - Red 0.7 V_pp/75 ohm
16 - RGB-stat./FBL 0 - 0.4 V: INT
1 - 3 V: EXT/75 ohm
17 - CVBS Ground
18 - FBL Ground
19 - CVBS 1 V_pp/75 ohm
20 - CVBS 1 V_pp/75 ohm
21 - Shielding Ground
EXT2: SCART - In/Out for VCR (RGB, CVBS, SVHS)
121
CL96532137_056.eps
202
171199
Figure 1-3 SCART connector
1 - Audio - R 0.5 V_rms/1 kohm
2 - Audio - R 0.5 V_rms/10 kohm
3 - Audio - L 0.5 V_rms/1 kohm
4 - Audio Ground
5 - Blue Ground
6 - Audio - L 0.5 V_rms/10 kohm
7 - Blue/C 0.7 V_pp/75 ohm
8 - CVBS-status 0 - 1.3 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9 - Green Ground
10 - Easy Link P50
11 - Green 0.7 V_pp/75 ohm
12 -
13 - Red Ground
14 - RGB-status Ground
15 - Red/C 0.7 V_pp/75 ohm
16 - RGB-stat./FBL 0 - 0.4 V: INT
1 - 3 V: EXT/75 ohm
17 - CVBS Ground
18 - FBL Ground
19 - Y/CVBS 1 V_pp/75 ohm
20 - Y/CVBS 1 V_pp/75 ohm
21 - Shielding Ground
EXT3: SCART - In (CVBS, Audio)
121
CL96532137_056.eps
202
171199
Figure 1-4 SCART connector
1-
2 - Audio - R 0.5 V_rms/10 kohm
3-
4 - Audio Ground
5 - Ground
6 - Audio - L 0.5 V_rms/10 kohm
7-
8 - CVBS-status 0 - 1.3 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9 - Ground
10 -
11 -
12 -
13 - Ground
14 - Status Ground
15 -
16 -
17 - CVBS Ground
18 - CVBS Ground
19 -
20 - CVBS 1 V_pp/75 ohm
21 - Shielding Ground
EN 4 F22RE AA1.
Technical Specifications, Connections, and Chassis Overview
EXT4: SCART- In (CVBS, Audio)
121
CL96532137_056.eps
202
171199
Figure 1-5 SCART connector
1-
2 - Audio - R 0.5 V_rms/10 kohm
3-
4 - Audio Ground
5 - Ground
6 - Audio - L 0.5 V_rms/10 kohm
7-
8 - CVBS-status 0 - 1.3 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9 - Ground
10-
11-
12-
13 - Ground
14 - Status Ground
15-
16-
17 - CVBS Ground
18 - CVBS Ground
19-
20 - CVBS 1 V_pp/75 ohm
21 - Shielding Ground
Audio Monitor - Out (Cinch: VGA2, RC-in)
1-RC - in 5 V
2 - Audio L 0.5 V_rms/10 kohm
3 - Audio R 0.5 V_rms/10 kohm
Monitor - Out (Sub-D: RGB+H/V, UART)
1
6
11
5
10
15
CL 16532023_043.eps
210901
Figure 1-7 VGA connector
1 - Red 0.7 V_pp/75 ohm
2 - Green 0.7 V_pp/75 ohm
3 - Blue 0.7 V_pp/75 ohm
4 - Data 2 n.c.
5 - Test Ground
6 - Red Ground
7 - Green Ground
8 - Blue Ground
9-RC
10 - Ground
11 - Data 0 CONFIG_IDENT
12 - Data 1 UART - TXD
13 - H-sync
14 - V-sync
15 - Data 3 UART - RXD
EXT5: SD - In (YPbPr, Audio)
- - Y 1 V_pp/75 ohm
- - Pr 0.7 V_pp/75 ohm
- - Pb 0.7 V_pp/75 ohm
- - Audio - L 0.5 V_rms/1 kohm
- - Audio - R 0.5 V_rms/1 kohm
PC/MAC - In (Sub-D: RGB+H/V)
1
6
11
5
10
15
CL 16532023_043.eps
210901
Figure 1-6 VGA connector
1 - Red 0.7 V_pp/75 ohm
2 - Green 0.7 V_pp/75 ohm
3 - Blue 0.7 V_pp/75 ohm
4 - Data 2 n.c.
5 - Test Ground
6 - Red Ground
7 - Green Ground
8 - Blue Ground
9-n.c.
10 - Ground
11 - Data 0 n.c.
12 - Data 1 n.c.
13 - H-sync 0 - 5 V/1 kohm
14 - V-sync 0 - 5 V/1 kohm
15 - Data 3 n.c.
Audio PC/MAC - In (Cinch: VGA1, Centre)
1 - Centre 0.5 V_rms/10 kohm
2 - Audio L 0.5 V_rms/10 kohm
3 - Audio R 0.5 V_rms/10 kohm
Technical Specifications, Connections, and Chassis Overview
1.3 Chassis Overview
2 68 7 4 10 3 95 1
EN 5F22RE AA 1.
1. Front I/O Panel (FP).
2. Power Supply Panel (PS).
3. Double Window Panel (DW).
4. Feature Box (FBX).
5. Small Signal Panel (SSP).
6. Audio Video Interface Panel (AVI).
7. Scaler Panel (if present).
8. Standard Definition Connector Panel (SD).
9. 3D Comb Panel (C) (US only)
10. 2D Comb Filter Add-on (CF)
CL 36532030_017.eps
170403
Figure 1-8 Panel position
EN 6 F22RE AA2.
Safety Instructions, Warnings, and Notes
2. Safety Instructions, Warnings, and Notes
2.1 Safety Instructions
Safety regulations require that during a repair:
• Connect the Receiver box to the Mains via an isolation
transformer.
• When you use the Receiver box in combination with a
plasma monitor, do not operate the monitor without the
front glass plate. One function of this glass plate is to
absorb IR radiation. Without this glass plate, the level of
radiation could damage your eyes.
• Safety components, indicated by the symbol , must be
replaced with original components.
Safety regulations require that after a repair, you must return
the set in its original condition. Pay particular attention to the
following points:
• Route the wire trees in their original positions and fix them
in place with the mounted cable clamps.
• Check the insulation of the Mains cord for external
damage.
• Check the electrical DC resistance between the Mains plug
and the secondary side (only for sets which have a Mains
isolated power supply):
– Unplug the Mains cord and connect a wire between the
two pins of the Mains plug;
– Set the Mains switch to the "on" position (keep the
Mains cord unplugged!).
– Measure the resistance value between the pins of the
Mains plug and the metal shielding of the tuner or the
aerial connection on the set. The reading should be
between 4.5 Mohm and 12 Mohm.
– Set the Mains switch to the "off" position, and remove
the wire between the two pins of the Mains plug.
• Check the cabinet for defects, to prevent the customer from
touching any inner parts of the television set.
2.2 Warnings
• All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD symbol ). Careless
handling during repair can reduce life drastically. Make
sure that, during repair, you are connected with the same
electrical potential as the set by a wristband with
resistance. Keep components and tools at this same
potential. Available ESD protection equipment:
– Complete ESD3 kit (small tablemat, wristband,
connection box, extension cable and earth cable):
4822 310 10671.
– Wristband tester: 4822 344 13999.
• Be careful while taking measurements in the live voltage
section.
• Never replace modules, or other components, with the
television set "'ON."
• Use plastic tools, instead of metal tools, when performing
alignments on the television set. This will help prevent
short circuits and reduce the danger of a circuit becoming
unstable.
stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise)
and picture carrier at 61.25 MHz (NTSC).
• Where necessary, measure the oscillograms and direct
voltages with (symbol ) and without (symbol ) aerial
signal. Measure the voltages in the power supply section
both in normal operation (symbol ) and in standby
(symbol ). These values are indicated by means of the
appropriate symbols.
• The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
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 expressed in Micro-Farads (µ =
-6
x10
), Nano-Farads (n = x10-9), or Pico-Farads (p = x10
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.
2.3.3 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.
• Before powering up the TV set with the rear cover off
(or on a test fixture), attach a clip lead to the CRT DAG
ground and to a screwdriver blade that has a well insulated
handle. After the TV is powered on and high voltage has
developed, probe the anode lead with the blade, starting at
the case of the High Voltage Transformer (flyback - IFT).
Move the blade to within two inches of the connector of the
CRT. If there is an arc, you found it the easy way,
without getting a shock! If there is an arc to the
screwdriver blade, replace the part that is causing the
problem: the High Voltage Transformer or the lead (if it is
removable).
-
2.3 Notes
2.3.1 General
• Measure the direct voltages and oscillograms with regard
to the chassis ground (symbol ), or hot ground
(symbol ).
• The direct voltages and oscillograms shown in the
diagrams are indicative. Measure them in the Service
Default Mode (see chapter 5) with a colour bar signal and
3. Directions for Use
Directions for Use
EN 7F22RE AA 3.
EN 8 F22RE AA3.
Directions for Use
Directions for Use
EN 9F22RE AA 3.
EN 10 F22RE AA3.
Directions for Use
Directions for Use
EN 11F22RE AA 3.
EN 12 F22RE AA3.
Directions for Use
Directions for Use
EN 13F22RE AA 3.
EN 14 F22RE AA3.
Directions for Use
Directions for Use
EN 15F22RE AA 3.
EN 16 F22RE AA3.
Directions for Use
Directions for Use
EN 17F22RE AA 3.
EN 18 F22RE AA3.
Directions for Use
Directions for Use
EN 19F22RE AA 3.
EN 20 F22RE AA3.
Directions for Use
Directions for Use
EN 21F22RE AA 3.
Personal Notes:
EN 22 F22RE AA4.
3
Mechanical instructions
4. Mechanical instructions
Index of this chapter:
1. Disassembly and Panel Overview
1. Top Cover Removal
2. Panel Overview
2. Service Positions and Panel Removal
1. Front I/O Panel
2. Double Window Panel (if present)
3. Power Supply Panel
4. Feature Box Module
5. Small Signal Panel
6. Down Scaler Panel (if present)
7. Audio/Video Interface Panel
8. High Definition Panel
9. 3D Comb Panel (US only)
3. Re-assembly
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
4.1 Disassembly and Panel Overview
4.1.1 Top Cover Removal
4.2 Service Positions and Panel Removal
4.2.1 Front I/O Panel
A
A
A
A
Figure 4-3 Front cover removal
Remove the front cover plate:
1. Pull tabs [A] slightly away from the top, bottom, and both
sides of the receiver box.
2. Pull the front panel in the direction of the big arrow.
1
1
1
CL 16532098_013.eps
140901
A
Figure 4-1 Top cover removal
1. For safety reasons, first unplug the mains cable.
2. Remove all screws from the metal top cover.
3. Remove the metal top cover.
4.1.2 Panel Overview
2 68 7 4 3 5 1
Figure 4-2 Panel overview
1. Front I/O.
2. Power Supply.
3. Double Window Panel (if present).
4. Feature Box.
5. Small Signal Panel.
6. Audio Video Interface.
7. Down Scaler panel (if present).
8. High Definition panel.
9. 3D Comb panel (US version only).
CL 16532098_012.eps
140901
CL 16532098_011.eps
190901
2
CL 16532098_015.eps
180901
Figure 4-4 Service position Front I/O panel
Remove the front I/O panel:
1. Lift the clamps [1] to release the Front I/O panel.
2. Unlock the Front I/O panel from the receiver box [2].
3. Park the front I/O panel on top of the housing [3]. Use a
protection sheet to prevent short-circuiting.
Note: Be sure to keep track of the three copper grounding clips;
they can be lost very easily, or they could cause a short circuit
if they fall into the receiver box.
Mechanical instructions
EN 23F22RE AA 4.
4.2.2 Power Supply Panel
PS panel
1
1
3
2
Figure 4-5 Service position Power Supply (PS)
1. Remove the front panel, if it was not yet removed.
2. Remove the two screws [1].
3. Remove the fixation bracket [2].
4. Pull the Power Supply panel out of the receiver box [3].
5. Place the Power Supply panel in the small slots on the
edges of the top of the housing [4].
4
CL 16532098_016.eps
240901
4.2.4 Feature Box module
FBX Module
2
1
1
Warning: Be aware of the live voltages on this board during
operation!
4.2.3 Double Window Panel (if present)
2
1
1
3
Figure 4-6 Service position Double Window panel
DW panel
DW/FBX bracket
CL 26532054_010.eps
150502
CL 16532098_014.eps
140901
Figure 4-7 Service position Feature Box panel (FBX)
1. Pull the clamps aside [1], and lift the Feature box module
[2].
2. Disconnect the necessary cables and remove the module.
3. Remove the shielding of the module: de-solder the fixation
lugs.
4. Remove the Feature Box panel from the module.
5. Connect the cables and place the Feature Box panel in
service position in the regarding bracket.
4.2.5 Small Signal Panel
SSP panel
CL 16532098_031.eps
140901
When the metal top cover is removed, the Double Window
panel is accessible.
For the service position:
1. Release the clamps [1] and push the panel gently up and
out of its bracket [2].
2. One of the cables must be temporarily disconnected to
place the Double Window panel in its service position as
shown in the figure.
3. Lead the removed cable in a favourable position and
connect this cable again.
Figure 4-8 Removal of the Feature Box bracket
1. Release the clamps that secure the feature box module.
2. Lift the feature box module, disconnect the regarding
cables and take out the module.
3. Release the side clamps that secure the Feature box
bracket.
4. Remove the screw in the middle of the feature box position
and remove the complete bracket.
EN 24 F22RE AA4.
E
D
E
D
C
C
F
G
D
C
Figure 4-9 Removal of the bottom cover plate
To access the copper side of the Small Signal Panel, it is
necessary to remove the metal bottom cover:
1. Turn the TV receiver box upside down.
2. Remove the three screws [C] that secure the bottom plate
at rear side.
3. Remove the screws [D] that hold the four feet and remove
the feet.
4. Pull the metal bottom cover backwards (lift it over the studs
[E]). Be aware of the hooks [F] on the frame.
Remove the Small Signal Panel:
1. Disconnect all cables.
2. Remove at rear side of the receiver box the three mounting
screws that secure this panel to the back plate.
3. Release the clamps that secure the Small Signal Panel and
carefully take it out.
4.2.6 Audio Video Interface panel
If the metal bottom cover is removed, the copper side of the AVI
panel is accessible.
Remove the Audio Video Interface panel
1. Make sure that the Feature Box module and its bracket is
removed as described above.
2. Disconnect all cables.
3. Remove at rear side of the TV receiver box the three
mounting screws that secure this panel to the backside.
4. Remove the four distance stud screws belonging to the PC/
MAC IN and MONITOR OUT sockets.
5. Release the clamps that secure the Audio video interface
and carefully take out the Small Signal Panel.
4.2.7 Down Scaler Panel (if present)
F
F
F
G
G
G
G
D
F
F
H
H
H
Mechanical instructions
4.2.8 HD/SD (High/Standard Definition) Panel
F
E
E
CL 16532098_025.eps
180901
4.2.9 3D Comb panel (US only)
4.3 Reassembly
SD panel
J
G
G
K
G
K
G
G
H
H
H
G
G
H
G
G
J
CL 16532098_026.eps
180901
Figure 4-10 Removal of the HD/SD panel)
There is no service position defined for this panel. The best way
to perform measurements on this panel is to remove the
Feature Box bracket as described above. Then the component
side of this single sided panel is accessible.
To remove the HD/SD panel:
Unscrew the screws that hold the panel (on the inside of the TV
receiver).
1. Remove both mounting screws
2. Turn it in a favourable position and lift it (if necessary
release and lift the Feature Box bracket a fraction at right
side).
3. Release the cable from the special shaped cable clamp.
Note: Use a protection sheet to prevent short-circuiting if you
place the unit in service position.
1. If necessary, you can remove the panel from its bracket. To
do this, release the clamps that secure the panel in the
bracket and remove the panel out of the bracket.
• To re-assemble the TV receiver, perform the disassembly
processes in reversed order.
• Before re-placing the top cover, verify the correct
connections for all the cables, and lead the cables in the
original positions
1. This Down Scaler panel stands normally in an upright
service position.
2. To remove this panel: pull it firmly out of its connectors,
mounted on the Audio Video Interface.
Note: Be sure to keep track of the two copper grounding clips;
they can be lost very easily, or they can cause short circuiting
when falling into the receiver box.
Service Modes, Error Codes, and Fault Finding
5. Service Modes, Error Codes, and Fault Finding
EN 25F22RE AA 5.
Index of this section:
1. Test Points
2. Service Modes
3. Problems and Problem Solving Tips (related to CSM).
4. ComPair
5. Error Codes
6. Protections
7. Repair Tips
5.1 Test Points
5.1.1 General
Perform measurements under the following conditions:
• Set in Service Default Mode.
• Video: Colour bar signal, received via the internal tuner.
• Audio: 3 kHz left, 1 kHz right.
Exceptions (when using external sources):
• Set in Service Default Mode (SDM).
• Video: If using a DVD player, use a "live" picture. If using a
VGA source, use a picture of your choosing.
• Audio: You can use a service generator, or the audio from
the DVD player or VGA source.
5.1.2 Waveforms
The chassis is equipped with test points printed on the circuit
board assemblies. Test points are displayed in two different
ways:
• The old method, still in use for re-used circuits (like the
Small Signal Panel, the Double Window Panel, and the
Feature Box), refers to the functional blocks. The test
points have names starting with I for IF, S for sound, etc.
The numbering is in a logical sequence for diagnostics.
• The new method, used for new circuits, uses service test
points that are recognizable as tagged Fxxx points. With
this method, factory test points are published (F-points are
functional test points, I-points are test points for in-circuit
testers in the factory. All these test points are on the copper
side. When the test point is a service test point, it is tagged
for recognition.
Not all test points have been measured, but they can serve as
identification names in Service communication (for example,
ComPair fault find trees, Force32 files).
In the following cases, there will also be no waveform:
• When a V_dc voltage is displayed in the diagrams, or when
the waveform does not have an additional value.
• When the sources are not easy accessible for the Service
engineer (for example, HD source, VGA source).
• External AV inputs are not measured, since the waveform
is equal to the source (dependent of load resistor
matching).
5.1.3 DC voltages
The DC voltages are measured at practically all semiconductor
pins. These values are displayed in the circuit diagrams. If a DC
value is displayed between brackets then this value is
measured in "standby" mode.
Note: DC voltages are also measured on the connectors.
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 the servicer and the customer.
There is also the option of using ComPair, a hardware interface
between a computer (see requirements) and the FTV chassis.
It offers the ability of structured troubleshooting, a test pattern
generation, error code reading, software version readout, and
software upgrading. (Software upgrading is not available for all
chassis)
Minimum requirements for ComPair: a Pentium Processor,
Windows 9x/NT/2000/XP/ME, and a CD-ROM drive (see
"ComPair" section).
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 (only when SDM is entered via
the “service pins” on SSP connector 0356).
• To start the "blinking LED" procedure.
Specifications
• Tuning frequency: 475.25 MHz for PAL/SECAM sets.
• Colour system: PAL B/G.
• All picture settings at 50 % (brightness, colour, contrast).
• Bass, treble and balance at 50 %; volume at 25 %.
• All service-unfriendly modes (if present) are disabled. The
service unfriendly modes include:
– Sleep timer.
– Smart modes.
– On Timer.
– Child lock.
– Black mute.
How to enter SDM
To enter SDM, use one of the following methods:
• Press the following key sequence on the remote control
transmitter: 062596 directly followed by MENU.
• Short pins 2 and 3 of connector 0356 on the SSP (the two
pins nearest to the rear panel) while the set is in the normal
operation mode.
Caution: Entering SDM by this method will override all
processor-controlled protections. When doing this, the service
technician must know exactly what he is doing, as this could
damage the set.
• Use the "Dealer Service Tool (DST) emulation feature" of
ComPair.
After entering SDM, a blank screen is visible, with "Service
Default" in the upper part for recognition. The “blinking LED”
procedure is started and will indicate any possible errors via the
front LED.
How to navigate in SDM
To toggle to the SAM mode, press the following key sequence
on the remote control transmitter: 062596 directly followed by
OSD (i+).
How to exit SDM
Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter (if you switch the set OFF by
disconnecting the AC power cable, the set will remain in SDM
when AC power is reapplied).
EN 26 F22RE AA5.
Service Modes, Error Codes, and Fault Finding
5.2.2 Service Alignment Mode (SAM)
Purpose
• To perform (software) alignments.
• To change the option settings.
• Easy identification of the software version.
• To view operational hours.
• To display (or clear) the error code buffer.
• To give the service technician the possibility (through a
special sequence of navigating and selecting) to diagnose
E-box problems in combination with a standard PC
monitor.
Specifications
• Software version of main processor.
• Operational hours counter.
• Dealer options.
• Service options.
• Error buffer reading and erasing.
• Alignments.
• Functional test.
How to enter SAM
Use one of the following methods:
• Press the following key sequence on the remote control
transmitter: 062596 directly followed by OSD (i+).
• Short jumpers 1 and 2 of connector 0356 on the SSP (the
two pins nearest to the front panel) while the set is in the
normal operation mode..
• Use the "Align" key of the Dealer Service Tool (DST)
emulation feature of ComPair.
After entering SAM, the following screen is visible:
Rom Version
Operating Hours
Errors
Defective Module
Reset Error Buffer
Alignments
Dealer Options
Service Options
Store Options
Functional Test
Aug 24 2001 F22RE1_1.0_xxxxx
No Errors
None
Figure 5-1 SAM screen shot
• OPERATION HOURS. The accumulated total of operation
hours of the Receiver box. Every time the Receiver box is
switched "on", 0.5 hour is added to the operation hours
counter.
• HARDWARE INFO. Indicates the software date and
version (MMMDDYYYY AAAABC_X.Y_xxxxx) of the box.
– MMMDDYYY = software date
– AAAA = the chassis name.
– B = the region (E= Europe, A= Asia Pacific, U= NAFTA,
L= LATAM or G= Global).
– C = the language cluster (1= English).
– X = the main software version number.
– Y = the sub software version number.
– xxxxx = the last five digits of the 12nc code.
• ERRORS. Room for a maximum of 10 errors. The most
recent error is displayed at the upper left position. For an
explanation of the errors, see the error code table in the
"Error Codes" section.
CL 36532030_015.eps
170403
• DEFECTIVE MODULE. The module that generates an
error is displayed here. If there are multiple errors in the
buffer that have not all been generated by a single module,
there is probably another defect. In that situation, the
message "Unknown" will then be displayed here. If there
are no errors, "None" is displayed.
• RESET ERROR BUFFER. Erases the contents of the error
buffer. Press "OK" on the remote control transmitter to do
this; the error buffer is cleared.
• ALIGNMENTS. Navigation by sub menus to service
alignment items. The details of these alignments are
explained in the "Electrical Alignments" section.
• DEALER OPTIONS. Controls the demonstration modes
used by dealers for display purposes.
• SERVICE OPTIONS. In this sub menu, the options can be
set. The quickest method to do this is through HW option
number entry.
• INITIALISE NVM. When an NVM was corrupted (or
replaced) in the MG3.1E chassis, the microprocessor
replaced the content with default data (to assure that the
set could operate). However, all presets and alignment
values were gone now, and option numbers were also 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, an
extra line will be added to the SAM menu: 'INITIALISE
NVM'. 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 OPTIONS. Service options must be stored here.
Note: Without storing, no changes made to the options will
be recorded. The servicer must remember to store all
changes before exiting SAM for those changes to take
effect.
• FUNCTIONAL TEST. Activate this test by pressing the
"OK" key on the remote control transmitter. Eventual errors
are displayed in the error buffer. The error buffer is not
erased, although it looks that way. By exiting SAM and then
entering SAM again, you will see the error buffer still
contains the previous contents.
• SW MAINTENANCE. This menu item contains software
"event logging" information, which can be delivered to the
Philips Development Centre on special request.
How to navigate in SAM
Use one of the following methods:
• In SAM, select menu items with the "Cursor Up/Down"
keys on the remote control transmitter. The selected “ball”
item is highlighted and becomes a “puck” (blue becomes
yellow). When not all menu items fit on the screen, this is
shown by two "ball" figures overlapping. Use the " Cursor
Up/Down " keys to display the next / previous menu
item(s).
• With the "Cursor Left/Right" keys, it is possible to:
– (De)activate the selected menu item.
– Change the parameter of the selected menu item
(some times through a "slider" entry)
– Activate the selected submenu.
• To toggle to the SDM mode, press the following key
sequence on the remote control transmitter: 062596
directly followed by MENU.
Note: SAM is exited when the MENU button on the remote
control transmitter is pressed once. If SAM is exited
accidentally, you have to enter the SAM mode again to perform
SAM alignments and adjustments.
Service Modes, Error Codes, and Fault Finding
EN 27F22RE AA 5.
How to exit SAM
To exit SAM, press the MENU button on the remote control
transmitter once.
5.2.3 Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the Flat TV operation settings. The servicer can
instruct the customer to enter CSM by telephone and read off
the information displayed. This helps the servicer to diagnose
problems and failures in the Flat 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 CSM
To enter CSM, use one of the following methods:
• Press the MUTE button on the remote control transmitter
and the MENU button on the local keyboard
simultaneously for at least four seconds.
• An alternative CSM entry method is to press the following
key sequence on the remote control transmitter: 123654.
Do not allow the display to time out between entries while
keying the sequence. The disadvantage of this method is
that the selected source is changed, due to the key
sequence. Therefore, the first method is preferred.
Upon entering the Customer Service Mode, the following
screen will appear:
Customer Service Menu 1
• SET TYPE. This allows the customer to view the type
number of the Receiver box, without looking at the bottom
of this box (e.g. FTR9965/17S). This information can be
very helpful when talking with the service technician.
• SW VERSION. Indicates the software version
(AAAABC_X.Y_xxxxx) of the box.
– AAAA = the chassis name.
– B = the region (E= Europe, A= Asia Pacific, U= NAFTA,
L= LATAM or G= Global).
– C = the language cluster (1= English).
– X = the main software version number.
– Y = the sub software version number.
– xxxxx = the last five digits of the 12nc code.
• FEATUREBOX. Gives the 12nc of the used Feature Box
software.
• CODE 1. Gives the last five errors of the error buffer. As
soon as the built-in diagnosis software has detected an
error, the buffer is adapted. If there are no errors, the text
"0" is displayed.
• CODE 2. Gives the first five errors of the error buffer. As
soon as the built-in diagnosis software has detected an
error, the buffer is adapted. The most recent error is
displayed on the leftmost position of the Code 2 line. Each
error code is displayed as a 3-digit number. When less than
10 errors occur, the rest of the line(s) is (are) empty. If there
are no errors, the text "0" is displayed. See the "Error
Codes" section for a description of the error codes.
Service Tip: When a group of adjacent errors has a
specific colour, this means they have occurred in the same
time window. This gives service technicians additional
information.
• VOLUME. Shows the last status of the volume, as set by
the customer. The parameter can vary from 0 (minimum) to
100 (maximum). Volume parameters can be changed by
using the volume key on the remote control transmitter.
Note: For "speaker less" TV monitors, this item is not
shown.
• BRIGHTNESS. Gives the last status of the brightness, as
set by the customer. The parameter can vary from 0
(minimum) to 100 (maximum). The brightness parameter
can be changed by using the CURSOR LEFT and
CURSOR RIGHT keys on the remote control transmitter
after pressing the "menu" button and navigating to "picture"
and setting "brightness".
• CONTRAST. Gives the last status of the contrast, as set by
the customer. The parameter can vary from 0 (minimum) to
100 (maximum). Contrast parameters can be changed by
using the CURSOR LEFT and CURSOR RIGHT keys on
the remote control transmitter after pressing the "menu"
button and navigating to "picture" and setting "contrast".
• COLOUR. Gives the last status of the colour saturation, as
set by the customer. The parameter can vary from 0
(minimum) to 100 (maximum). Colour parameters can be
changed by using the CURSOR LEFT and CURSOR
RIGHT keys on the remote control transmitter after
pressing the "menu" button and navigating to "picture" and
setting "colour".
• HUE. Gives the last status of the colour saturation, as set
by the customer. The parameter can vary from -50
(minimum) to 50 (maximum). Hue parameters can be
changed by using the CURSOR LEFT and CURSOR
RIGHT keys on the remote control transmitter after
pressing the "menu" button and navigating to "picture" and
setting "hue".
You can select the next Customer Service Mode screen(s) by
pressing the CURSOR DOWN key on the remote control
transmitter. To return to the previous Customer Service Mode
screen(s), press the CURSOR UP key on the remote control
transmitter (there are four CSM menu screens).
Customer Service Mode Screen 2
• SHARPNESS. Gives the sharpness parameter, as set by
the user. It can vary from 0 (minimum) to 7 (maximum). A
noisy picture may result if there is a bad antenna signal, or
the parameter of sharpness is set too high. Sharpness
parameters can be changed by using the CURSOR LEFT
and CURSOR RIGHT keys on the remote control
transmitter after pressing the "menu" button and navigating
to "picture" and setting "sharpness".
• HEADPHONE VOLUME. Gives the last status of the
headphone volume, as set by the customer. The parameter
can vary from 0 (minimum) to 100 (maximum). Headphone
volume parameters can be changed by using the CURSOR
LEFT and CURSOR RIGHT keys on the remote control
transmitter after pressing the "menu" button and navigating
to "sound" and setting "headphone volume".
• CENTRE MODE. Indicates the loudspeaker configuration
of the monitor. If it is set to "On", then the internal speakers
both produce centre sound (from the "centre input" input
jack on the back of the set). If it is set to "Off", the speakers
produce left and right sound. This parameter can be
changed by using the CURSOR LEFT and CURSOR
RIGHT keys on the remote control transmitter after
pressing the "menu" button and navigating to "Settings",
"General" and choosing "Centre mode" = “On".
Note: For "speaker less" TV monitors, this item is not
shown.
• SOUND MODE. Indicates the selected sound mode, as
selected by the customer. This can be "Stereo", or "Mono".
This parameter can be changed by using the CURSOR
LEFT and CURSOR RIGHT keys on the remote control
transmitter after pressing the "menu" button and navigating
to "Settings", "General" and choosing "Sound mode".
• TUNER FREQUENCY. Gives the frequency of the main
Tuner in MHz.
• SURROUND MODE. Indicates the by the customer
selected surround mode (or automatically chosen mode).
In case the set is a Non-Dolby set, there will be displayed
'0'. If it is a Dolby-set then is displayed: 'Stereo', 3D
Surround', 'Dolby Pro Logic', 'Dolby 3 Stereo', or 'Hall'.
These settings can be influenced by toggling the surround
mode button on remote control (white button). It can also
have been selected automatically by signalling bits
(internal software).
Note: For "speaker less" TV monitors, this item is not
shown.
EN 28 F22RE AA5.
Service Modes, Error Codes, and Fault Finding
• DIGITAL OPTION. This can be:
– Progressive Scan
– Movie Plus
– Pixel Plus
• TV SYSTEM. Gives information about the video system of
the selected transmitter.
– BG: PAL BG signal received
– DK: PAL DK signal received
– I: PAL I signal received
– L/La: SECAM L/L' signals received
– M38.9: NTSC M signal received with video carrier on
38.9 MHz
– MN: NTSC M signal received
• BALANCE. Gives the last status of the balance, as set by
the customer. The parameter can vary from -50 (maximum
left balance) to 50 (maximum right balance). Balance
parameters can be changed by using the CURSOR LEFT
and CURSOR RIGHT keys on the remote control
transmitter after pressing the "menu" button and navigating
to "sound" and setting "balance".
• DNR. This is the setting of Dynamic Noise Reduction. This
can be set to "Off", "minimum", "medium", or "maximum".
Customer Service Mode Screen 3
• NOISE FIGURE. Gives the selected noise ratio for the
selected transmitter. This parameter can vary from 0 (good
signal) to 255 (bad signal).
Note: This measured value only has significance when the
"active control" mode is activated (this can be done by
pressing the "active control" key on your remote control
transmitter).
• SOURCE. This source parameter can be changed by using
the CURSOR LEFT and CURSOR RIGHT keys on the
remote control transmitter after pressing the "menu" button
and navigating to "Menu", "Setup", and choosing "Source".
The "quality" parameter depends how you connect your
source: for example, if you connected the source to the
Video input or to the SVHS input. This can be set to
– Tuner (default)
– EXT1.
– EXT2.
– EXT3.
– EXT4.
– EXT5.
– Front.
– VGA. Behind this source value there is an item
referring to the "quality" of the chosen source:
– Tuner (default)
– VIDEO/STEREO.
– VIDEO/NICAM.
– S-VIDEO/STEREO.
– S-VIDEO/NICAM.
– RGB/STEREO.
– YUV/STEREO.
– YPBPR 1FH/STEREO.
– YPBPR 2FH/STEREO.
• AUDIO SYSTEM. Gives information about the audio
system of the selected transmitter.
– Analog Mono.
– Analog Stereo.
– PCM 2/0.
– DD: 1/0, 2/0 LtRt, 2/0 L0R0, 2/1, 2/2, 3/0, 3/1, 3/2, or
1+1.
– MPEG: 1/0, 2/0, 2/0 LtRt, 2/1, 2/2, 3/0, 3/1, 3/2, 1+1, or
2+2.
• TUNED BIT. Gives information about the tuning method of
the stored preset.
– If a channel is detected by searching (manual as well
as automatic installation), the micro-search tuning
algorithm is used. When a channel is identified and
stored, this will display YES.
– When you install a preset (while the channel is not
being broadcast) with "digit entry"/"fine tune", the
display (after storing) will read NO. If the channel is
found later (after a successful micro-search), the tuned
bit will change to "Yes". If the tuned bit displays "No",
something is wrong with the installed preset. Please
reinstall the preset.
• ON TIMER. Gives information about the timer settings.
This can be:
– Off.
– On.
– Time (e.g. 18.25).
– Day (e.g. Monday).
– Program Number (e.g. PR23).
• PRESET LOCK. Gives the status info. This can be:
– Unlock.
– Locked.
• CHILD LOCK. Gives the status info. This can be:
– Unlock.
– Locked.
– Custom.
• AGE LOCK. Gives the status info. This can be:
– Off.
– 4, 6, 8, 10, 12, 14, or 16 years.
• Lock After. Gives the status info. This can be:
– Off.
– Time (e.g. 18.45).
• CATEGORY LOCK. Gives the status info. This can be:
– Off
– Movies, News, Shows, Sports, Children, Music, or
Culture.
Customer Service Mode 4
• PROGRAM CATEGORY. Gives the status info. This can
be:
– Off
– Movies, News, Shows, Sports, Children, Music, or
Culture.
• SW CODE 1. This code is only for Development. Do not
use it.
• SW CODE 2. This code is only for Development. Do not
use it.
• OPTIONS 1. Gives the Group 1 option code overview (see
further for more details).
• OPTIONS 2. Gives the Group 1 option code overview (see
further for more details).
5.3 Problems and Solving Tips (Related to CSM)
5.3.1 Picture Problems
Note: The problems described below are related to the TV
settings (customer settings). The procedures to change the
parameters (or status) of the different settings are described.
Snowy/noisy picture
Check the NOISE FIGURE line. If the value is 127 or higher
and is also high on other programs, check the aerial cable/
aerial system.
Picture too dark
• Press the "Smart Picture" button on the remote control
transmitter. If the picture improves, increase the brightness
value or increase the contrast value. The new value(s) are
automatically stored for all TV channels.
• If the picture improves after entering CSM, increase the
brightness value or increase the contrast value. The new
value(s) are automatically stored for all TV channels.
• Check the BRIGHTNESS and CONTRAST lines. If the
value of BRIGHTNESS is low (<15) or the value of
CONTRAST is low (<15), increase the brightness value or
increase the contrast value.
Picture too bright
• Press the "Smart Picture" button on the remote control
transmitter. If the picture improves, reduce the brightness
Service Modes, Error Codes, and Fault Finding
EN 29F22RE AA 5.
value or reduce the contrast value. The new value(s) are
automatically stored for all TV channels.
• If the picture improves after entering CSM, reduce the
brightness value or reduce the contrast value. The new
value(s) are automatically stored for all TV channels.
• Check BRIGHTNESS and CONTRAST. If the value of
BRIGHTNESS is high (>60) or the value of CONTRAST is
high (>75), reduce the brightness value or increase the
contrast value.
Fading picture
Digital scan effect. Check the DNR line. The status of DNR is a
value between 0 and 100. There is no practical way to explain
the significance of this value. If the picture is fading, adjustment
of the DNR level may help. The DNR level can be adjusted by
the following navigation route: "Menu" - "Picture" - "DNR".
There are four different selectable levels.
White line around picture elements and text
• Press the "Smart Picture" button on the remote control
transmitter. If the picture improves, reduce the sharpness
value. The new value(s) are automatically stored for all TV
channels.
• If the picture improves after entering CSM, reduce the
sharpness value. The new value(s) are automatically
stored for all TV channels.
• Check the SHARPNESS line. If the value is too high,
reduce the sharpness value. The new value(s) are
automatically stored for all TV channels.
Black picture and/or unstable picture
Improper signal is being received. Check the NOISE FIGURE
line. If the value is higher then 127, the signal is suspect. Check
your cable or aerial signal.
Black and white picture
Check the COLOUR line. If this value is low (<30), increase the
"Colour" value. The new value(s) are automatically stored for
all TV channels.
Menu text not sharp enough
• Press the "Smart Picture" button on the remote control
transmitter. If the picture improves, reduce the contrast
value. The new value(s) are automatically stored for all TV
channels.
• If the picture improves after entering CSM, reduce the
contrast value. The new value(s) are automatically stored
for all TV channels.
• Check the CONTRAST line. If this value is high (>75),
reduce the contrast value.
5.3.2 Sound problems (only with FTV-monitor connected)
No sound from left and right speaker.
Possible solutions:
• Press the "Smart Sound" button on the remote control
transmitter. If the sound improves, raise the volume value.
The new value(s) are automatically stored for all TV
channels.
• If the volume is acceptable after entering CSM, increase
the volume. The new value(s) are automatically stored for
all TV channels.
• Check the VOLUME line. If the value is low, increase the
"Volume" value. The new value(s) are automatically stored
for all TV channels.
Sound too loud from left and right speaker.
• Press the "Smart Sound" button on the remote control
transmitter. If the sound improves, reduce the volume
value. The new value(s) are automatically stored for all TV
channels.
• If the volume is acceptable after entering CSM, decrease
the volume. The new value(s) are automatically stored for
all TV channels.
• Check the VOLUME line. If the value is high, reduce the
"Volume" value. The new value(s) are automatically stored
for all TV channels.
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 of the DST (special remote control transmitter for
service), which allows faster and more accurate diagnostics.
ComPair has three big advantages:
ComPair helps you to quickly get an understanding on how to
repair the chassis in a short time by guiding you systematically
through the repair procedures.
ComPair allows very detailed diagnostics (on I2C level) and is
therefore capable of accurately indicating problem areas. You
do not have to know anything about I2C commands yourself
because ComPair takes care of this.
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 electronic manual
of the chassis being serviced, schematics and CBAs are only a
mouse click away.
5.4.2 Specifications
ComPair consists of a Windows based faultfinding program
and an interface box between PC and the product. The
ComPair interface box is connected to the PC via a serial or
RS232 cable.
With the F22R Receiver box, the ComPair interface box and
the Receiver box communicate via a bi-directional infrared link.
The ComPair faultfinding program is able to detect and
diagnose problems occurring in the product. ComPair can
gather diagnostic information in two ways:
• Automatic (by communication with the Receiver box):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I2C level. ComPair
can access the I2C bus of the Receiver box. ComPair can
send and receive I2C commands to the microprocessor of
the Receiver box. In this way, it is possible for ComPair to
communicate (read and write) to devices on the I2C
busses of the Receiver box.
• Manually (by asking questions to you): Automatic
diagnosis is only possible if the microprocessor of the
Receiver box is working correctly, and only to a certain
extent. When this is not the case, ComPair will guide you
through the faultfinding tree by asking you questions (for
example, Does the screen give a picture? Click on the
correct answer: YES / NO), and showing you examples (for
example, Measure test point I7 and click on the oscillogram
you see on the oscilloscope). The servicer can answer by
clicking on a link (for example, text or a waveform picture)
that will bring you to the next step in the faultfinding
process.
By a combination of automatic diagnostics and an interactive
question and 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:
• Uploading or downloading of presets.
• Management of preset lists.
• Emulation of the Dealer Service Tool (DST).
• If both ComPair and the Force electronic service manual
are installed, all the schematics and the CBAs of the
EN 30 F22RE AA5.
Service Modes, Error Codes, and Fault Finding
product are available by clicking on the appropriate
hyperlink.
Example: Measure the DC-voltage on capacitor C2568
(Schematic/Panel) at the SSP.
– Click on the "Panel" hyperlink to automatically show
the CBA with a highlighted capacitor C2568.
– Click on the "Schematic" hyperlink to automatically
show the electronic position of the highlighted
capacitor.
5.4.3 How to Connect ComPair
1. First, install the ComPair Browser software on your PC
(read the installation instructions carefully).
2. Connect the RS232 interface cable between a free serial
(COM) port of your PC and the PC connector (marked
"PC") of the ComPair interface.
3. Connect the AC power adapter to the supply connector
(marked "POWER 9V DC") on the ComPair interface.
4. Switch the ComPair interface OFF.
5. Switch the Receiver box OFF (and remove the AC power).
6. Point the ComPair interface to the Service send-LED
(behind the cover) on the front of the Receiver box.
7. Plug the AC power adapter in an AC power outlet and
switch on the ComPair interface. The green and red LEDs
light up together. The red LED turns off after approximately
1 second, while the green LED remains lit.
8. Start the ComPair program and read the "introduction"
chapter.
PC VCR I2CPower
Figure 5-2 ComPair set-up
9V DC
86532027_003.EPS
050898
Table 5-1 Stepwise Start-Up Table
State Mode description Display
LEDs(*)
0 - Low power standby
Red 'on' None
Enabled
protections
- uP in Standby.
1 - High power standby.
- TV-set in standby.
2- Supply 'on'.
- Protections 5V2 and
8V6 activated.
3 - Sound ICs initialised.
- Protections FBX and
TUNER activated.
RedFlash
1 time
Orange/
GreenFlash
2 times
Orange/
GreenFlash
3 times
None
67 and 68
Plus 77 and 80
4 Not used in FTV
5 - TV operates.
- Unblanked picture.
Orange/
GreenFlash
5 times
Stepwise shutdown explanation
In the stepwise shutdown mode, state 2 and 4 are skipped.
Table 5-2 Stepwise Shut-Down Table
State Mode description Display
LEDs(*)
5 - TV operates.
- Unblanked picture.
Orange/
GreenFlash
Disabled
protections
-
5 times
4 - All protections are
'on'.
Orange/
GreenFlash
-
4 times
3 - Sound ICs initialised.
- All protections 'off'.
Orange/
GreenFlash
-
3 times
1 - High power standby.
- TV-set in standby.
Red 0.5 HzFlash
80, 77, 68, and
67
1 time
0 - Low power standby.
Red 'on' -
- uP in Standby.
5.4.4 How to Order
ComPair order codes (EU/AP):
• 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.
• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003). If you encounter any
problems, contact your local support desk.
• ComPair interface cable: 3122 785 90004.
5.4.5 Stepwise Start-up / Shut-down
Under normal circumstances, a fault in the power supply, or an
error during start-up, will switch the television to protection
mode. ComPair can take over the initialisation of the television.
In this way, it is possible to distinguish which part of the startup routine (hence which circuitry) is causing the problem.
Stepwise start-up explanation
This is realised via ComPair and is very helpful when a
protection is activated (see also paragraph "Protections").
Note (*): When the set is in stepwise mode and, due to
stepping-up, a protection is activated; the set will really go into
protection (blinking LED). The set will not leave the stepwisemode however. By stepping down, the set can be activated
again, until state X where the protection was activated. At state
(X-1) diagnostic measurements can be performed.
5.5 Error Codes
The error code buffer contains all detected errors 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 written at the left side and all other errors shift one
position to the right.
5.5.1 How to Read the Error Buffer
It is possible to read out the error buffer in three ways:
• On the screen while in Service Alignment Mode (SAM). If
there is a picture, this is the easiest way to read the error
buffer. In the SAM main menu, the last 10 error codes,
which have occurred, are displayed. The most recently
detected error code is displayed on the left side. Examples:
– 003 000 000 000 000: error code 3 is the last and only
detected error.
– 002 003 000 000 000: error code 3 was detected first
and error code 2 is the last detected (newest) error.
• With the CODE 1 and CODE 2 lines in CSM.
• With ComPair.
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