Philips 28PW8505/58 User manual

1
ServiceManual
Published by CO 9871 TV Service Department Printed in The Netherlands Subject to modification 54822 727 21622
©Copyright reserved 1998 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, electron-
ic, mechanical, photocopying, or otherwise without the prior permision of Philips.
Colour Television Chassis
MG2.1E
AA
mg21frtp.eps
290798
Content
1. Technical specifications 2
2. Connection facilities, chassis overview 3
3. Safety instructions, maintenance, 5
warnings and Notes
4. Mechanical instructions 7
5. Service modes, DST, error messages, 9
protections, faultfinding and repair tips including:
Errorcodes-table 15
Protection-structure (overview and detailed) 17
Fault find tree 22
6. Block diagrams 29
Block diagram 29
(Supply, Deflection, CRT)
Block diagram 30
(Video, Audio, Control)
Survey of testpoints 31
Oscillograms 32
Wiring diagram 33
Overview I2C -ICs 33
Supply lines overview 34
7. Electrical Diagrams and PWB lay-outs
Diagram PWB
Power Supply (Diagram A1) 35 36,37
Line Deflection (Diagram A2) 38 36,37
Frame Deflection / Frame Rotation (Diagram A3) 39 36,37
Audio Amplifier (Diagram A4) 40 36,37
Mains switch Panel (Diagram E) 41 41
CRT / Scavem Panel (Diagram F) 42 43
Tuner, IF, I/O, Video processing (Diagram K1) 46 44,45
Input / Output (Diagram K2) 47 44,45
Sound processing (Diagram K3) 48 44,45
Audio Dolby (Diagram K4) 49 44,45
Secam Correction (Diagram U) 49 49
Featurebox 6 (Eco) (Diagram K5) 50 44,45
Video control & Geometry (Diagram K6) 51 44,45
Teletext & Control (Diagram K7) 52 44,45
Side I/O Panel (Diagram O) 53 53
Top Control Panel (Diagram P) 54 54
DC Shift (Diagram G) 54 54
Diversity tables 55
8. Electrical alignments 57
9. Circuit Descriptions: not available (see Training
Manual) 63
10. Directions for use 64
11. List of abbreviations 75
12. Spare parts list 77
Published by CO 9871 TV Service DepartmentPrinted in The NetherlandsCopyright reserved 1998 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 otherwisewithout the prior permision of Philips.Subject to modification5 4822 727 21622

1 Technical specifications
2 MG2.1E
1 Technical specifications
Mains voltage : 220V -240V (±10%);
50-60Hz (±5%)
Aerial input impedance : coaxial 75 Ω
Minimal aerial voltage : 30µV (VHF), 40µV
(UHF)
Maximum aerial voltage : 180 mV
Programmes : 0-99
VCR programmes : 0, 90-99

2 Specification connections 3MG2.1E
2 Specification connections
2.1 Front connections
Figure 2-1
2.1.1 Audio/Video
- Video 1Vpp/75Ωjq
- Audio L(0.5Vrms ≥10kΩ)jq
- Audio R(0.5Vrms ≥10kΩ)jq
- Headpho
ne (32-600Ω≥10mW) ot
2.1.2 SVHS
1- v
2- v
3- Y (1Vpp; 75Ω)j
4- C (0.3 Vpp;75Ω)j
2.2 Rear connections
See figure 2.2
2.2.1 External 1(in/out): RGB+CVBS
Figure 2-2
1- Audio R (0.5Vrms ≤1kΩ)k
2- Audio R (0.5Vrms ≥10kΩ)j
3- Audio L (0.5Vrms ≤1kΩ)k
4- Audio v
5- Blue v
6- Audio L (0.5Vrms ≥10kΩ)j
7- Blue (0.7Vpp/75Ω)j
8- CVBS-
status 0-1.3V:INT
4.5-7V:EXT 16:9
9.5-12V:EXT 4:3 j
9- Green v
10-
11- Green (0.7Vpp/75Ω)j
12-
13- Red v
14- RGB-
status v
15- Red (0.7Vpp/75Ω)j
16- RGB-
status 0-0.4V:INT
1-3V:EXT/75Ω
17- CVBS v
18- CVBS v
19- CVBS (1Vpp/75Ω)k
20- CVBS (1Vpp/75Ω)j
21- Earth
socket
2.2.2 External 2 (in/out): SVHS+RGB+CVBS (intended for VCR.)
1- Audio R (0.5Vrms ≤1kΩ)k
2- Audio R (0.5Vrms ≥10kΩ)j
3- Audio L (0.5Vrms ≤1kΩ)k
4- Audio v
5- Blue v
6- Audio L (0.5Vrms ≥10kΩ)j
7- Blue /
Chroma
out (0.7Vpp/75Ω)j
8- CVBS-
status 0-1.3V:INT
4.5-7V:EXT 16:9
9.5-12V:EXT 4:3 j
9- Green v
10- Easy link
11- Green (0.7Vpp/75Ω)j
12-
13- Red v
14- RGB-
status v
15- Red /
chroma-
in (0.7Vpp/75Ω)j
16- RGB-
status (0-0.4V:INT
1-3V:EXT/75Ω)
17- CVBS v
18- CVBS v
19- Y/CVBS (1Vpp/75Ω)k
20- Y/CVBS (1Vpp/75Ω)j
21- Earth
socket
CL 86532057_top.AI
310798
SVHS
VIDEO
AUDIO L
AUDIO R
3.5
'IR-
RECEIVER'
SK 1
'IR-SERVICE-LED'
BICOLOUR
STANDBY LED
AUTO TV
SENSOR
(OPTIONAL)
TOP CONTROL FL7/FL8
STYLING
CL 86532057_rear.AI
310798
R
L
AUDIO EXTERNAL 1
EXTERNAL 3 (OPTIONAL)
EXTERNAL 2

2 Specification connections
4 MG2.1E
2.2.3 External 3 (in): CVBS+Audio (optional)
1-
2- Audio R (0.5Vrms >10kΩ)j
3-
4- Audio v
5-
6- Audio L (0.5Vrms>10kΩ)j
7-
8- CVBS-
status 0-1.3V:INT
4.5-7V:EXT 16:9
9.5-12V:EXT 4:3 j
9-
10-
11-
12-
13-
14-
15-
16-
17- CVBS v
18- CVBS v
19-
20- CVBS (1Vpp/75Ω)j
21- Earth
socket
Figure 2-3
CL 86532057_002.eps
170798
FTOP CONTROL PANEL
MAINSWITCH PANEL
LARGE SIGNAL PANEL
SMALL SIGNAL PANEL
SHIELDING
SIDE I/O PANEL
CRT/SCAVEM PANEL
O
K
P
E
A

3 Safety instructions, Maintenance instruction, 5MG2.1E
3 Safety instructions, Maintenance instruction, Warnings and Notes
3.1 Safety instructions for repairs
1. Safety regulations require that during a repair:
– the set should be connected to the mains via an
isolating transformer;
– safety components, indicated by the symbol ∆, should
be replaced by components identical to the original
ones;
– when replacing the CRT, safety goggles must be worn.
2. Safety regulations require that after a repair the set must
be returned in its original condition. In particular attention
should be paid to the following points. h
– As a strict precaution, we advise you to resolder the
solder joints through which the horizontal deflection
current is flowing, in particular: ('general repair
instruction')
• all pins of the line output transformer (LOT);
• fly-back capacitor(s);
• S-correction capacitor(s);
• line output transistor;
• pins of the connector with wires to the deflection
coil;
• other components through which the deflection
current flows.
– Note:
– This resoldering is advised to prevent bad
connections due to metal fatigue in solder joints
and is therefore only necessary for television sets
older than 2 years.
– The wire trees and EHT cable should be routed
correctly and fixed with the mounted cable clamps.
– The insulation of the mains lead should be checked for
external damage.
– The mains lead strain relief should be checked for its
function in order to avoid touching the CRT, hot
components or heat sinks.
– The electrical DC resistance between the mains plug
and the secondary side should be checked (only for
sets which have a mains isolated power supply). This
check can be done as follows:
• unplugthemains cordandconnect a wirebetween
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 MΩand 12 MΩ;
• switch off the TV and remove the wire between the
two pins of the mains plug.
– The cabinet should be checked for defects to avoid
touching of any inner parts by the customer.
3.2 Maintenance instruction
It is recommended to have a maintenance inspection carried
out by a qualified service employee. The interval depends on
the usage conditions:
– When the set is used under normal circumstances, for
example in a living room, the recommended interval is 3 to
5 years.
– When the set is used in circumstances with higher dust,
grease or moisture levels, for example in a kitchen, the
recommended interval is 1 year.
– The maintenance inspection contains the following actions:
• Execute the above mentioned 'general repair
instruction'.
• Clean the power supply and deflection circuitry on the
chassis.
• Cleanthepicturetube panel andthe neckofthepicture
tube.
3.3 Warnings
1. In order to prevent damage to ICs and transistors, all high-
voltage flashovers must be avoided. In order to prevent
damage to the picture tube, the method shown in Fig. 3.1
should be used to discharge the picture tube. Use a high-
voltageprobe and a multimeter (position DC-V). Discharge
until the meter reading is 0V (after approx. 30s).
2. ESD All ICs and many other semiconductors are
susceptible to electrostatic discharges (ESD). Careless
handling during repair can reduce life drastically. When
repairing, make sure that 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:
– anti-static table mat (large 1200x650x1.25mm) 4822
466 10953
– anti-static table mat (small 600x650x1.25mm) 4822
466 10958
– anti-static wristband 4822 395 10223
– connection box (3 press stud connections, 1 M ohm)
4822 320 11307
– extension cable (2 m, 2 M ohm; to connect wristband
to connection box) 4822 320 11305
– connecting cable (3 m, 2 M ohm; to connect table mat
to connection box) 4822 320 11306
– earth cable (1 M ohm; to connect any product to mat or
connection box) 4822 320 11308
– complete kit ESD3 (combining all 6 prior products -
small table mat) 4822 310 10671
– wristband tester 4822 344 13999
3. Togetherwith thedeflection unitand any multipole unit, the
flat square picture tubes used from an integrated unit. The
deflection and the multipole units are set optimally at the
factory.Adjustmentof this unitduringrepairis therefore not
recommended.
4. Be careful during measurements in the high-voltage
section and on the picture tube.
5. Never replace modules or other components while the unit
is switched on.
6. When making settings, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
7. Wearsafety goggles during replacement of the picture tube

3 Safety instructions, Maintenance instruction,
6 MG2.1E
3.4 Notes
1. The direct voltages and oscillograms should be measured
with regard to the tuner earth , or hot earth as this is called
(see fig. 3.3)
2. The direct voltages and oscillograms shown in the
diagrams are indicative and should be measured in the
Service Default Mode (see chapter 8) with a colour bar
signal and stereo sound (L:3 kHz, R:1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz.
3. Wherenecessary, the oscillograms and direct voltages are
measured with and without aerial signal. Voltages in the
power supply section are measured both for normal
operation and in standby . These values are indicated by
means of the appropriate symbols (see fig. 3.3).
4. The picture tube PWB has printed spark gaps. Each spark
gap is connected between an electrode of the picture tube
and the Aquadag coating.
5. The semiconductors indicated in the circuit diagram and in
the parts lists are completely interchangeable per position
with the semiconductors in the unit, irrespective of the type
indication on these semiconductors.
6. Manufactured under license from Dolby Laboratories
Licensing Corporation.
7. DOLBY, the double D symbol and PRO LOGIC are
trademarks of Dolby Laboratories Licensing Corporation.
Figure 3-1
Figure 3-2
V
CL 26532098/042
140792
tuner earth
tuner aarde
la masse du tuner
Tuner-Erde
massa del tuner
tierra del sintonizador
with aerial signal
met antenne signaal
avec signal d'antenne
mit Antennensignal
con segnale d'antenna
con la señal de antena
normal condition
normaal bedrijf
fonctionnement normal
normaler Betrieb
funzionamento normale
funcionamiento normal
hot earth
hete aarde
la terre directe
heißen Erde
massa calda
tierra caliente
without aerial signal
zonder antenne signaal
sans signal d'antenne
.ohne Antennensignal
senza segnale d'antenn
a
sin la señal de antena
stand by
stand by
position de veille
in Bereitschaft
modo di attesa
posición de espera

4 Mechanical instructions 7MG2.1E
4 Mechanical instructions
4.1 Removing the rear cover
Figure 4-1
1. Remove the fixation screws (A) of the rear cover, notice
also the screw for the side-I/O, see figure 4.1. The screw A
is only valid for the 3-scart configuration.
2. Remove the rear cover.
4.2 Service positions
There are two predefined service positions:
1. Service position for the top side (component-side)
2. Service position for the bottom side (only valid for LSP)
(copper-side)
4.2.1 Service position top side
Figure 4-2
Figure 4-3
1. Remove 1 screw in case of a 2-scart I/O coverplate and 2
screws in case of a 3-scart I/O coverplate (see figure 4.2).
2. Remove the I/O coverplate by releasing the snap at the left
side.Pullthe I/O coverplatetotheleft andthen backwards.
The I/O-bracket hinges at the right side. It can be removed
now.
3. Pull backwards (about 8 cm) the bracket with the SSP and
the LSP. These brackets are not fixed to each other, but
can be repositioned backwards, as if they were one
bracket.
4. Hook the brackets in the first row of fixation-holes of the
bottom tray; see figure 4.3. In other words re-position the
fixation from (1) to (2).
4.2.2 Service position bottom side (only for LSP)
Figure 4-4
CL 86532042_001.AI
160798
A
A
A
A
Aor A
A A AA'
A
AA
or oror
CL 86532042_003.ai
090698
CL 86532042_002.AI
240798
2
1
2
1
Side I/O assembly
SSP - bracket
LSP - bracket
Bottom tray
LSP - topbracket
CL 86532042_005.ai
090698

4 Mechanical instructions
8 MG2.1E
Figure 4-5
1. Referring to previous Service position one must remove
the SSP and LSP from bottom tray by pulling back these
two panels.
2. Disconnect the SSP from the LSP bracket.
3. The two panels must be shifted some 25 cm to the right.
When doing this the side-assembly can be taken out of the
hinge (see figure 4.4), and placed on the bottom tray.
4. Either the LSP-topbracket must be removed first, or the
cabling from SSP to LSP (0310 and O311) must be re-
routed outside the LSP-topbracket to get room to position
these panels.
5. Turnthe LSP 90degreesanti clockwiseand place theLSP
in the hole of the bottom tray. If needed a screw can
reinforce the stability of this position (see figure 4.5) (see
(2)).
6. The left front hook of the SSP panel can be fixed in a
fixation-hole, that was used in previous service-position for
the right front hook of the SSP. See described movement-
action (1). (There is no right fixation hole.)
4.2.3 (Service position bottom side SSP)
1. (See figure 4.3). Remove the two fixation screws of the
LSP-topbracket (one on the left hand side, one on the right
hand side).
2. Disconnect wirings from cable-clamps of LSP-topbracket.
3. In case the line transformer is changed by a bigger type a
part of the LSP-topbracket can be removed by breaking it.
4.3 Removing the LSP-top bracket
1. (See figure 4.3). Remove the two fixation screws of the
LSP-topbracket (one on the left hand side, one on the right
hand side).
2. Disconnect wirings from cable-clamps of LSP-topbracket.
3. In case the line transformer is changed by a bigger type a
part of the LSP-topbracket can be removed by breaking it.
4.4 Removing the SSP from SSP-bracket
1. Release the three fixation clamps on the right hand side of
the bracket.
2. Press the board upwards and remove the board from the
bracket.
4.5 Removing the LSP from LSP-bracket
1. Release the two fixation clamps on the right hand side of
the bracket.
2. Press the board upwards and remove the board from the
bracket.
4.6 Removing the top control board
Figure 4-6
1. See figure 4.6. Pull 2 clamps to the outer side.
2. Topcontrolboard canbepusheddown now,whileithinges
still in the front.
3. Now the board can be pulled backwards.
4. (If by accident the hinge in front is damaged or one of the
clampsis broken, thetopcontrol boardcanalso be fixedby
2 screws.)
4.7 Removing the side I/O board
1. The complete Side I/O-assembly can be lifted out of the
hinges and placed on the bottom tray of the set (see fig
4.4).
2. The board can easily be removed out of the bracket by
releasing the fixation clamps.
4.8 Removing the mains switch/LED board
1. Release the two fixation clamps.
2. Pull the board backwards.
Figure 4-7
4.9 Mounting the rear cover
Before mounting the rear cover, check whether the mains cord
is mounted correctly in the guiding brackets.
CL 86532042_004.AI
240798
2
1
CL 86532042_006.ai
160798
Top control board
86532093_002.AI
051198
(4)
(4)
(5) (6)
(5)

5 Service modes, error codes and protections 9MG2.1E
5 Service modes, error codes and protections
In this chapter the following paragraphs are included:
5.1 Test points
5.2 Service modes and Dealer Service Tool and ComPair
(including fault finding tips related to CSM-mode)
5.3 Error codes
5.4 Protections
Fault find tree
5.1 Test points
The MG2.1E chassis is equipped with test points in the service
printing. These test points are referring to the functional blocks:
• P1-P2-P3, etc.: Test points for the power supply.
• L1-L2-L3, etc.: Test points for the line drive and line output
circuitry.
• F1K-F2K-F3K, etc on Small Signal Panel: Test points for
the frame drive.
• F1F-F2F-F3F, etc. on CRT/Scavem Panel: Test points for
the CRT-panel circuitry.
• F1-F2-F3,etc. onLarge SmallSignal Panel:Test points for
the frame output circuitry.
• S1-S2-S3, etc: Test points for the synchronisation
circuitry.
• V1-V2-V3, etc: Test points for the video processing
circuitry.
• I1-I2-I3, etc: Test points for the Tuner/IF part.
• A1-A2-A3, etc. on Small Signal Panel: Test points for the
audio processing circuitry.
• A1-A2-A3, etc. on Large Signal Panel: Test points for the
audio amplifiers.
• C1-C2-C3, etc: Test points for the control circuitry.
• T1-T2-T3, etc: Testpoints for the teletext circuitry.
• SC1-SC2-SC3, etc: Test points for the Scavem circuitry.
The numbering is done in a for diagnostics logical sequence;
always start diagnosing within a functional block in the
sequence of the relevant test points for that functional block.
5.2 Service modes, Dealer Service Tool and ComPair
For easy installation and diagnosis the dealer remote control
RC7150 is introduced. The RC7150 can be used for all new TV
sets, including all set of the MG2.1E chassis. The RC7150 is
also called Dealer Service Tool or DST. The ordering number
of the DST (RC7150) is 4822 218 21232.
5.2.1 Installation features for the dealer
The dealer can use the RC7150 for programming the TV-set
with presets. 10 Different program tables can be programmed
into the DST via a TV-set (downloading from the GFL, MD2 or
MG2.1 to the DST; see GFL, MD2 and MG2.1 service
manuals) or by the DST-I (DST interface; ordering code 4822
218 21277).
For explanation of the installation features of the DST, the
directions for use of the DST (4822 727 20073) are
recommended (for the MG2.1E chassis, download code 4
should be used).
5.2.2 Diagnose features for the servicer
The MG2.1E sets can be put in the two service modes via the
DST RC7150. These are the Service Default Mode (SDM) and
the Service Alignment Mode (SAM). The SDM and SAM can
also be entered by short circuiting the relevant pins on the SSP.
Service Default Mode (SDM)
Specification of the SDM:
– Tuning frequency 475.25 MHz.
– TV-system for BGLM sets set to BG, for BGLL'I sets to LL'.
– All picture settings at 50% (brightness, colour, contrast,
HUE).
– All sound settings at 50% except volume at 25% (so bass,
treble, balance at 50%, volume at 25%).
– All service-unfriendly modes are disabled (like sleep timer,
child lock, blue mute).
Entering the SDM can be done in 2 ways:
– By the "DEFAULT" key on the DST while the set is in the
normal operation mode.
– By short-circuiting for a moment the two pins (pin 2 and 3
of connector 0356) on the component side of the SSP with
the indication "SDM" (activation can be performed in all
modes except when the set has a problem with the main-
processor).
Note: If the SDM is entered via the pins, all the protections are
de-activated.
Exiting the SDM can only be done via the STANDBY
command.By switching off-onthe setwiththe mainsswitch the
MG2.1E will come up again in the SDM.
Service Alignment Mode (SAM)
Specification of the SAM:
– Software alignments (see chapter 8).
– Option settings (see chapter 8).
– Error buffer reading and erasing. The most recent error
code is displayed on the left side.
– Operation counter.
– Software version.
Entering the SAM can be done in 2 ways:
– By the > button on the DST while the set is in the normal
operation mode (or SDM). Enter the password '3-1-4-0'
and press OK.
– By short-circuiting for a moment the two pins (pin 1 and 2
of connector 0356) on the component side of the SSP with
the indication "SAM" (activation can be performed in all
modes except when the set has a problem with the
microprocessor).
Note: If the SAM is entered via the pins, all protections are de-
activated.
Exiting the SAM can be done via the MENU command or via
switching off-on the set with the mains switch.
Customer Service Mode (CSM)
All MG2.1E sets are equipped with the 'Customer Service
Mode' (CSM). This 'Customer Service Mode' is a special
service mode which can be activated and deactivated by the
customer upon request of the service technician/dealer during
a telephone conversation in order to identify the status of the
set. This CSM is a 'read only' mode, therefore modifications in
this mode are not possible.
Switching-on of the Customer Service Mode
The Customer Service Mode will switch-on after pressing
simultaneously the "MUTE" knob on the remote control
handset and the "MENU" button on the TV for at least 4
seconds. This activation only works if there is no menu on the
screen.
Switching-off the Customer Service Mode
The Customer Service Mode will switch-off after pressing any
key of the remote control handset (with exception of the

5 Service modes, error codes and protections
10 MG2.1E
"cursor-up" and "cursor-down" keys), or the buttons on the TV
or by switching off the TV set with the mains switch.
Detailed explanation of the Customer service Mode
After switching on the Customer Service Menu the following
screen will appear:
Figure 5-1 Customer Service Menu 1
Line 1: Software version; the build in software version
(AAAABCX.Y)
– AAAA= MG21(chassis name)
– B = E (Europe)
– C = 1 (language cluster)
– X = main version number
– Y = sub version number
Details on the software version can be found in the chapter
"Software Survey" of the publication "Product Survey - Colour
Television".
Line 2: Code 1; gives the last 5 errors of the error buffer. As
soon as the built-in diagnose software has detected an error
the buffer is adapted.
Line 3: Code 2; gives the first 5 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 of
code2. Eacherror code isdisplayed asa 3digit number. When
less than 10 errors occur, the rest of the line(s) is(are) empty.
In case of no errors the text "No Errors" is displayed. See
paragraph 5.3 of this chapter for a description of the error
codes.
Line 4: LS Volume; gives the Last Status of the volume as set
by the customer for this selected transmitter. The value can
vary from 0 (volume is minimum) to 24 (volume is maximum).
Volume values can be changed via the volume key on the
remote control handset.
Line 5: LS Brightness; gives the Last Status of the brightness
as set by the customer for this selected transmitter. The value
can vary from 0 (brightness is minimum) to 63 (brightness is
maximum). Brightness values can be changed via the "cursor
left" and "cursor right" keys on the remote control handset after
pressing the red button for picture menu and selecting
"brightness".
Line 6: LS Contrast; gives the Last Status of the contrast as set
by the customer. The value can vary from 0 (contrast is
minimum) to 63 (contrast is maximum). Contrast values can be
changed via "cursor left" and "cursor right" keys on the remote
control handset after pressing the red button for picture menu
and selecting "contrast".
Line 7: LS Colour; gives the Last Status of the colour
saturation, as set by the customer. The value can vary from 0
(colour is minimum) to 63 (colour is maximum). Colour values
can be changed via "cursor left" and "cursor right" keys on the
remote control handset after pressing the red button for picture
menu and selecting "colour".
Line 8: LS Headphone; gives the Last Status of the headphone
volume, as set by the customer. The value can vary from 0
(volume is minimum) to 24 (volume is maximum). Headphone
volume values can be changed via the "cursor left" and "cursor
right" keys on the remote control handset after pressing the
green button for sound menu and selecting "headphone".
Line 9: 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 remote control handset after pressing the red button for
picture menu and selecting "sharpness".
Line 10: Dolby; indicates whether the received transmitter
transmits Dolby sound (present) or not (not present). Attention:
The presence of Dolby can only be tested by the software on
the Dolby Signalling bit. If a Dolby transmission is therefore
received without a Dolby Signalling bit, then this indicator will
show "not present" even though such a Dolby transmission is
received.
Line 11: Surround Mode; indicates the by the customer
selected surround mode. In case the set is a Non-Dolby set
there will be displayed "0". If it is a Dolby-set then is displayed:
"Pro Logic", "Dolby 3 Stereo", "Hall" or "Off". For Dolby-set
surroundmodecan be changedviathe "cursor left"and"cursor
right" keys on the remote control handset after pressing the
green button for sound menu and selecting "Surround
settings".
By means of the "cursor-down" knob on the remote control
handset the Customer Service Menu 2 will appear. By means
of the "cursor-up" knob on the remote control handset the
Customer Service Menu 1 will appear again.
Customer Service Menu 2 represents following information:
Figure 5-2 Customer Service Menu 2
Line 12: Rear Volume; gives the volume value of the surround
sound loudspeakers. This value can vary from 0 (minimum
volume) to 63 (maximum volume). Rear volume can be
changed via the "cursor left" and "cursor right" keys on the
remote control handset after pressing the green button for
86532061_004.AI
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CUSTOMER SERVICE MENU 1
1 SW Version
2 Code 1
3 Code 2
4 LS Volume
5 LS Brightness
6 LS Contrast
7 LS Colour
8 LS Headphone
9 Sharpness
10 Dolby
11 Surround mode
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86532061_005.AI
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CUSTOMER SERVICE MENU 2
12 Rear Volume
13 Centre Volume
14 DNR
15 Noise Figure
16 Digital option
17 Colour System
18 TV System
19 Audio System
20 Tuned bit
21 Speaker config.
22 DVD
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