Loewe L4200, Concept L42 Schematic

Service Manual

L 4200

230-90431.992

Concept L 42
Platinum
Art.-N° 64403A60

Concept L 42
Anthracite
Art.-N° 64403D60

Table Of Contents

1. Introduction.................................................................................................................3

2. Service-address..........................................................................................................3

3. Technical Data ............................................................................................................4

4. Service-Hints...............................................................................................................7

4.1 Transport ................................................................................................................7

4.2 Cleaning .................................................................................................................7

4.3 Test patterns ...........................................................................................................7

4.4 Ground straps.........................................................................................................7

4.5 OSD-Duration.........................................................................................................7

4.6 Reset ......................................................................................................................7

4.7 Factory defaults......................................................................................................7

4.8 General Reset ........................................................................................................7

4.9 Overtemperature- switch off ...................................................................................7

4.10 Software-Update...................................................................................................8

4.1 1 Typical Faults........................................................................................................8

4.12 Flat-display connectors.........................................................................................9

5. Wiring diagram .........................................................................................................10

6. AV3 Signalprocessing..............................................................................................11

6.1 AV3 wiring diagram............................................................................................... 11

6.2 In-/Outputpanel..................................................................................................... 11

6.3 Connectors ...........................................................................................................11

6.4 Fault finding..........................................................................................................12

7. Startup Sequence .....................................................................................................15

8. Service OSD ..............................................................................................................16

8.1 Submenus ............................................................................................................16

9. Plasma Display.............................................................................................................19

9.1 Rear view including PCBs ....................................................................................19

9.2 Schematic Configuration ......................................................................................19

9.3 Power Supply Unit (PSU) .....................................................................................22

10. LVDS-Interface-Board ..............................................................................................23

11. Exploded Drawing ....................................................................................................24

12. Spare Parts List ........................................................................................................25

2 Technical Manual

Introduction

1. Introduction

This manual is only intended for technically trained personel!

It was designed to enable the technician to carry out repairs on board—level in case of malfunction. Attempts
of repairs going on component level or, due to missing knowledge, will cause follow up defects, will lead
automatically to lapse of any warranty claims. The manufacturer reserves the right to check units, having been
returned for repair, to that effect.

In the case you should need support via telephone, please keep ready the ident—no. and the serial—no., both
can be found on the type label, located on the rearside of the unit, close to the mains inlet.

If you will have to return a defective unit for repair, please attach a detailed fault description, including when
and how the problem appears ( e.g. always after swichting on, sporadically, etc.)

In the unlikely event a problem should be unreproducible in our workshop, we immediately would like to get in
contact with you. For this reason it is very helpful if in the delivery note, besides the fault description, also a
technical contact person (incl. telephone—no.) is mentioned.

2. Service-address

Loewe-Service und Logistik

LOEWE OPTA GmbH
Service + Logistik
Zentrale Kronach
96305 Kronach • Postfach 1554
96317 Kronach • Industriestraße 11

When working at respectively inside the device, always
disconnect mains inlet!
There are dangerous voltages inside the unit. The
regulations
and safety instructions according to VDE
shall be valid as well as the respective national
deviations!
Keep to ESD regulations!

Die wichtigsten Rufnummern der Zentrale Kronach:
The most important phone numbers of the Kronach headquarters

Telefon: FAX
Ersatzteilbestellungen: (01 80) 522 1800 (01 80) 522 1806
Status von Reparaturen: [phone] (0 92 61) 99 412
Support TV Röhre: [phone] (0 92 61) 99 730
Support Video/DVD: [phone] (0 92 61) 99 730
Support Telekommunikation: [phone] (0 92 61) 99 730
Support HiFi: [phone] (0 92 61) 99 730
Support TV Plasma, LCD, Rückprojektion: (01 80) 522 1807 (0 92 61) 99 730

Note!

Spare parts orders only through Service + Logistics / Headquarters in Kronach

Technical Manual 3

Technical Data

3. Technical Data

CONCEPT L 42

Display:

Model: PDP42V6####
Display Type: AC—PDP, V6
Screen size: 107 cm (42”)
Active screen (h x b): 920,1 mm x 518,4 mm
Aspect ratio: 16:9
Physical Resolution in Pixel: 852 x 480
Colors: 16,77 Mio.
Maximum Brightness: typ. 1000 cd / m2 (white peak @ 4% display load)
Maximum contrast ratio: typ. 3000:1 (dark room, white peak @ 4% display load)
Viewing angle (A/B, L/R): 800/800 , 800/800, typ.
Limitation power consumption: APC (Automatic Power Control)
Color temperature: 9500K (@ 20% grey) characterictics acc. to manufact. spec,

2—point adjustment not possible.

A.m. values are valid after 20 min operation at an ambient temp. of 25°C.

EMI Shielding Glass:

Type: Security Shatterproof Glass incl. Mesh
Transmission: 48% +/— 5%

Power requirement:

Mains Inlet: 115 — 230V ~ +/— 10%
Mains frequency: 50/60 Hz +/— 6%
Power consumption: 5W typ. in Standby, ca. 350W in operation
Inrush current: 40A max.

In— / Outputs:
Description Input / Output Signal

Cinch / Cinch: disabled no function
Cinch / Cinch: output Audio Subwoofer Line out / n.c.
Cinch / Cinch: output Audio Stereo Line out
Cinch / Cinch: input Audio Stereo for CVBS / YUV
Cinch / Cinch: input Audio Stereo for PC
Cinch / Cinch: input Audio Stereo for Y/C (S—Video)
DVI—I: input PC Connection to DVI—/ VGA—Signalsource
IEC: input RF antenna signal terrestrical or cable
IEC: output RF with patch cable connected to:
IEC: input RF
D—Sub 9pol: input / output PC RS232 for Softwareupdate
3x Cinch: input Video YUV, combined with CVBS
Euro AV: input Video CVBS, RGB, Audio L/R

output Video CVBS, Audio L/R

Euro A V : input Video CVBS, Audio L/R

output Video CVBS, Audio L/R

Input signals in PC Mode

Horizontal frequency range: 30kHz ... 80kHz
Vertical frequency range: 50Hz ... 90Hz
Pixel Clock frequency: max. 140MHz RGB, max. 110MHz DVI
Signal level, nominal: 0,7Vp—p +/— 3dB bei 75 Ohm
Synchronisation: SoG, Composite Sync, H— und V—Sync, separated
Sync. polarity: positiv and negativ
Sync. level: TTL, Loeding >1kOhm +/— 10%, bei SoG 0,3Vp—p +/— 0,015V,

negativ
VESA DDC Standard: 2B
Jitter: <6% @ 140MHz
Input resistance: 75 Ohm +/— 10% (0 ... 200MHz)
Threshold timing determination: +/— 2% (horizontal, vertical)
Transit time between 2 Timings: < 5sec

4 Technical Manual

Technical Data

Displayable resolutions in PC Mode (analog)

170 pre—defined Timings, e.g.
DOS 640 x 480 60Hz
DOS 720 x 400 70Hz
VGA 640 x 480 50Hz to 90Hz
SVGA 800 x 600 50Hz to 90Hz
XGA 1024 x 768 50Hz to 90Hz

Formats in PC Mode (analog)

1 1:1
2 Format filling
3 User Zoom (40% to 140%)
4 Full screen

Input signal in PC Mode (digital)

Standard: DVI 1.0
Pixel Clock Frequency: max. 110MHz

Input signal in Video Mode

Standards: PAL: B/G, DK, I, M, N

SECAM: B/G, DK/K1, L/L’

NTSC: M4, B/G4, D/K4, I, NTSC—V (4,43)
Signal types: YUV, CVBS, Y/C, RGB
CVBS Signal level, nominal: 1Vp—p +/— 3% @ 75 Ohm
RGB Signal level, nominal: 0,7Vp—p +/— 3% @ 75 Ohm
Y—Signal level, nominal: 1Vp—p +/— 3% @ 75 Ohm
U—Signal level, nominal: 0,7Vp—p +/— 3% @ 75 Ohm
V—Signal level, nominal: 0,7Vp—p +/— 3% @ 75 Ohm
C (PAL) Signal level, nominal: 0,3Vp—p +/— 3% @ 75 Ohm synchronous color signal
C (SECAM) Signal level, nominal: 0,286Vp—p +/— 3% @ 75 Ohm synchronous color signal
Automatic format identification: WSS, BLD
CVBS Prozessing: Digital comb filter
Synchronisation: Analog and automatical sync recognition
Sync types: Composite, SoG
Sync levels: 0,3Vss +/— 3dB /75 Ohm

Formats in Video Mode

1 4:3
2 16:9
3 Zoom (130%)
4 User Zoom (40% to 140%)
5 Full screen
6 Panorama Zoom —> Cinema
7Auto

Displayable standards in RF Mode

CVBS Signals: PAL: B/G, DK, I

SECAM: B/G, DK/K1, L/L’
RF footprint: 47MHz to 861MHz (VHF / UHF / Hyperband)

Channel setting in RF Mode

Channel setting: Automatical channel search

storing and manual adjustment
Program locations in memory: 99
channel sorting: yes

Videotext

Videotext: TOP/FLOF, Level 2.5
Number of pages in memory: 2100
VPS: no
EPG: no

Audio Signals

Audio level Stereo inputs: 1Vrms
Audio level Stereo Line output: 1Vrms +6dB / —20dB adjustable via OSD
Frequency range (Line in / Line out): 20Hz to 20kHz

Technical Manual 5

Technical Data

Audio settings

Equalizer: yes, 5 fader
Treble, bass: not available

Speaker

Quantity: 2 per side
Frequency range: 100Hz — 20kHz, —3dB
Output: > 5W nominal output / speaker
Impedancy: 4 Ohm /Spk, serial connection to 8 Ohm

Dimensions and weight

Dimensions with and w/o stand:

116,7

116,7

62,8

depth 9,4

Weight w/o Fuß: ca. 30kg
Weight incl. stand: ca. 35kg

Pixelfaults

Allowed Pixelfaults: According to manufacturer’s spec for the used PDP
(6 dark in A+B, 2 bright in B)

depth 21,8

70,7

A-Zone

25% of

Display Area

B-Zone 75% of Display Area

6 Technical Manual

Service Hints

4. Service-Hints

4.1 Transport

The displays may only be transported in upright position! For the transport you have to take care for a save
pakking, for this the original packing, which is available at your LOEWE service (
suits best.

4.2 Cleaning

For cleaning of the surface a dampened, lint—free cloth is most suitable. As cleaning liquid the manufacturer
recommendsenvironmental friendly glass cleaner.
Most suitable for the claening of the ventilation openings is a handheld vacuum cleaner, cleaning by means of
compressed air is not recommended, as dust might get into the unit.

4.3 Test patterns

When using AV3 signal processing, test patterns are available under the service menu

page 16)

4.4 Ground straps

Ground straps, which connect the display with the housing of the unit, must be refitted after repair, to keep to
EMI regulations. Straps, which have been torn apart when removed, have to be substituted.

See chapter 2. on page 3)

(see also chapter 8. on

4.5 OSD—Duration

For Service it is helpful, to set the duration for the OSD to ”off”. The menues will then not disappear automatically

(see also Operating Manual)

4.6 Reset

On malfunction or when the device has ”stuck up” (no control via IR possible anymore), switch off unit via
mains power switch — wait for 30 sec (until all electrolyt—capacitors are discharged) — switch on unit again.

4.7 Factory defaults

In the OSD—menu under submenu ”function” you will find the item ”factory defaults”. All settings will be set to
factory presets, the channel storage remains

(see also Operating Manual).

4.8 General Reset

In the service menu (open with ”8640”,
complete reset can be done.
CAUTION: Here the operating hours as well as the channel storage will be erased!

see also chapter 8.1.6 on page 17)

under the submenu ”reset all” a

4.9 Overtemperature— switch off

”WARNING” will appear, as soon as the temperature on the AV3 electronics exceeds 60°C (Temperature 1)..
The unit will be switched to Stand By, the red LED is lit as soon as the temperature on the AV3 electronics
exceeds 65°C (Temperature 2). It is possible to switch on the unit again via remote control.
The unit will be switched to Stand By, the red LED starts to blink as soon as the temperature on the AV3
electronics exceeds 70°C (Temperature 3). It is not possible to switch on the unit again via remote control.
As soon as the temperature is below 60°C, the LED stops blinking, it is possible to switch on the unit again

(see also chapter 8.1.4 on page 17)

.

Technical Manual 7

Service Hints

4.10 Software—Update

You need:

— Update—Program ”FlashUpgrader.exe” (for Windows 98 and Windows ME) or ”FlashUpgraderNT.exe” (for
Windows NT4.0, Windows 2000 as well as Windows XP). Under Windows 95 the update is not possible.
— actual software (the update software as well as the actual software release for your device is available as
zip—file at your LOEWE service,
— Null—Modem cabel (serial date cable (RS232) with 9 pin female connector on both sides, the wires must be
crossed)

Update:

— Unpack Update—Program and new Software into a new directory.
— Switch off unit (mains switch).
— Start Update—Programm.
— Select via ”Choose...” file ” *.inf” in the new directory with the firmware data.
— Set ”Connection” to ”serial”, select the used Com port as well as the Baud—rate (recommended 115200).
— All other options remain on ”default” position.
— Click on ”Flash” anklicken, the program is set to stand by
— Switch on the device using the mains switch. The program starts automatically, the progress is shown on
the display. Depending on the selected Baud—rate, the update takes about 3—6 minutes.

4.11 Typical Faults

In the case of malfunction, it is recommended to check the external wiring before opening the unit:
— Mains power available?
— Are the corresponding signal cables connected?
— Is there a signal available from the external sources?
— Is the corresponding signal source selected?
Also after opening the unit it is recommended to check the internal wiring and connectors to exclude any loose
contact.

see chapter 2. on page 3

)

4.11.1 No display (on all signal modes)

— Check In—/Outputs of power supply

(see chapter 9.3 on page 22)

4.11.2 Not possible to switch unit on (remains in StandBy)

— Check IR remote control (batteries!)
— Reinstall software
— Check AV3—electronic

(see chapter 4.10 on page 8)

(see chapter 6.4 on page 12)

4.11.3 Missing lines or columns

— Check display

(see chapter 9. on page 19)

4.11.4 Pixel faults

Due to technological reasons single pixels or subpixels might fail on TFTs as well as on Plasma displays. As
long as the number of faults is within the limits mentioned in the specification, there is no device defect
existent

(see chapter 3.on page 6)

.

4.11.5 Missing colors

— Check data cable
— Check AV3
— Check display

(see chapter 6. on page 11)

(see chapter 6.4 on page 12)

(see chapter 9. on page 19)

4.11.6 Channel search not working / not working properly

— Check AV3

(siehe chapter 6.4 on page 12)

8 Technical Manual

Service Hints

4.12 Flat—display connectors

If there should be a repair or just a check on a LCD— or Plasma—panel, it will become necessary to disconnect
some of the connectors. Sometimes this is quite complicated, disconnetion only with force will lead to total
defect of the panel in the worst case. Below there are the most common connectors and how to disconnect
them:

Lift upwards

before disconnecting unlock by pressing

to unlock pull towards arrow direction

take care for rest noses!

to unlock fold towards arrow direction

Technical Manual 9

5. Wiring diagram

P1031

90432.900

LG Electronics

42 ” Plasma Display

PDP 42V6.....(LG KK)

P2008P2005P3001

4 pol

4 pin

CN805CN806CN807

10 pol

10 pin

Logic Board

8 pol

1 GND 13 GND

2 RA- 14 GND

3 RA+ 15-18 n.c.

8 pin

Wiring, premounted
Verkabelung, vormontiert

4 RB- 19 GND

5 RB+ 20-25 n.c.

6 GND 26 GND

7 RC- 27 DISPEN

8 RC+ 28 SDATA

9 RCLK- 29 SCLK

10 RCLK+ 30 SLE

11 RD- 31 GND

12 RD+

P31

Connector

Signal Input

4 X

00

Kantenschutz

? X

Driller

300lg

90432.924

? X

2 X

00

Kantenschutz

Klebeschellen

Netzteil Bestandteil des PDP

Power Supply Unit (PSU) Part of PDP

Bolzen für Erdung, Zahnscheibe verwenden

Earth over bolted assembly, use a toothed lock washer

L

N

1

2

CON1

roter Sockel

150lg

PE

Part of PDP

Netzeingang

(Bestandteil PDP)

Power Input

Part of (PDP)

90432.918

1 ACD

red socket

100lg

Netzschalter

Power Switch

2 RLY ON

1a

2a

3 +5Vst_by 1,2,3 +5V

4 GND 4,5,6 GND

5 Vs ON 7,8 +12V

CN02

112

Power

6 5VD 9,10 GND

7 n.c. 11,12 n.c.

+5VSB and

Audio

1,2 30V

3,4 GND

CN03

300lg

Ansicht der Netzschalter-Kontakte

230 V~

5V / 12V

PSU control

Power

CN802 CN801 CN803

1a

2a

View on the power switch contacts

90432.921

90432.920

2

Pin Leitung / wire

1a 0921-0204-6501D3

200lg

90432.922

6774

300lg

90432.923

300lg

650lg

1 2215-1146-0001 (braun / brown)

2a 0921-0204-6501E3

2 2215-1146-0001 (blau / blue)

Power +5V/+12V in

Control

CN8

Keyboard

CN11 CN19 CN13

Audio

10 pin

7 pin

7 pin

Power in

X1

90432.902

LVDS-Adapter

1 +5VST

2,4,6 GND

3,5 +5V (VCC)

7 +12V

8 PSSTDBY

9 PSDPMS

1 ACPWCK

2 RLYON

3 5V STBY

4 GND

5 VSon

6 FPVRR

1,7,18 GND

3 LED (rt/rd)

4 LED (grn)

19 +5VST

20 IR Rec

J7

4 pin

1,2 GND

3,4 30V

X1

IR-Receiver

LED grn/rt // grn7rd

X1

1 GND 11RD+ 19 GND

10 FPVRR

7 n.c.

CN2

90432.903

2 DISPEN 12 RB- 20 R3+

3 SLE 13 GND 21 R3-

PIP-Tuner

AV3plusL

Scart 1

4 SCLK 14 RCLK+ 22 GND

5 SDATA 15 RCLK- 23 RA+

6 GND 16 GND 24 RA-

7-9 n.c. 17 RC+ 25 GND

f1

f2

f1

90432.901

L

Scart 2

10 GND 18 RC-

CN29

CN20

R

140lg

90432.919

Folie 12 cm Kontaktblech

LS-L

2

2

4 Speakers 4 Ohm

--

++

++

--

LS-R

90432.908

10 Technical Manual

6. AV3 Signalprocessing

6.1 AV3 wiring diagram

Speakers Out

Cinch

Audio Amplifier

TDA 7263

Sound Ouput

1x Cinch & 2x Scart

Image Processor

Main CPU

Flash ROM

1 MByte

Display Port 48Bit

AV3 Signalprocessing

SDRAM

2 MByte

Flash ROM

2 MByte

Teletext Engine

SDA 6000

Sound Processor

(ADC/DAC)

MSP 3410G

Audio Matrix

Sound Input

3x Cinch & 2x Scart

VGA/HDTVp In

1x analog & 1x DVI

6.2 In-/Outputpanel

NC

LINE
OUT
SUB

LINE
OUT

CVBS/YUV

LINE IN

S-VIDEOPC

PW 181

VGA ADC

& DVI Receiver

AD 9887

PC DVI-I

RS232

DSUB

RF IN

RF OUT

RS232

2x RF-

Tuner

ANTENNA

Video Decoder

& PIP Engine

& Video Matrix

(embedded RAM)

VSP 9417

YUV

Video Input

SCART 2

SCART 1

S-VIDEO

3x Cinch (YUV), 1x MiniDIN, 2x Scart (RGB)

CVBS

6.3 Connectors

Below please find the most important connectors. For clarity reasons only those connectors are
mentioned, which are in use.

Connector

CN 1
CN 4

CN 6-C

CN 22

CN 5
CN 3-A
CN 3-B

Technical Manual 11

Pin Marking

2x Scart, Scart1 also RGB fit

S-Video

CVBS

RS-232

DVI-I
PC Audio in
YC Audio in

AV3 Signalprocessing

Connector

CN 15

CN 6 -A/-B/-C

CN 21

CN 11

CN 13

CN 33

Pin Marking

CVBS/YUV Audio in

YUV

1,5,7

2
3
4

6
1,2
3,4

1

2,4,6

3

5

7

8

9

10

1-50

GRLED (green LED)

STBY (start low voltage)

DPMS (start high voltage)

GND

5V Standby
IRRCVR (Sensor)
RDLED (red LED)

GND

30V Audio

5V Standby

GND

5V
5V

12V

VRR (PD Pready)

Digital Output

6.4 Fault finding

6.4.1 Without opening the unit

— Analysis Front LEDs

Red LED remains lit in spite of switching unit on with remote: device stays in standby, possible faults are IR
remote control or AV3..
Green LED but no picture: device is active but shows no image, possible faults are: wrong input source
selectedor panel defective.
Red and green LED is lit at the same time: unit is in an undefined state, fault caused mostly by AV3

— Analysis Screen

If with a black screen (no image is displayed) a light gleam is still visible (darken point of view with hand),
normally the problem is located in the signal routing and not on the panel itself.
.

— Accoustic Analysis (Relais)

When switching between the different input sources, there is a gentle click of a relais to be heard. If this is not
audible, the problem is certainly located on the AV3.

6.4.2 With open unit

— Check supply voltages (use the pins of the connectors for testing points,
— Problem containment (by means of checking and / or exchange of single PCB’s)..

(see chapter 6.3 on 11)

.

6.4.3 FAQs

Noisy picture in tuner mode

— Signal level must be higher than 68dbµV (typical level of cable TV)
— High noise level on RF signal (poor SNR)
— Adjust DNC to max. (OSD)
— Due to the digital signal processing flat panels are more sensitive to noise levels than 50Hz interlace CRTs
or 50Hz progressive CRT s (8Bit resolution, False Contouring, Dithering, Deinterlacing, limits of the used PDPs,
...)

Noisy picture in Video mode

— High noise level on Video signal (poor source)
— Adjust DNC to max. (OSD)

12 Technical Manual

AV3 Signalprocessing

—

Due to the digital signal processing flat panels are more sensitive to noise levels than 50Hz interlace CRTs or
50Hz progressive CRTs (8Bit resolution, False Contouring, Dithering,Deinterlacing, limits of the used PDPs, ...)
— If possible do not use FBAS signals, better is SCART—RGB or S—Video.

Regular horizontal or vertical stripes in Video picture

— Change position of external signal wiring (emission of PDPs)
— Humming loop (ground shift)

Video picture only in black and white

— Poor signal level or non—standard signal
— Signal not supported (e.g. NTSC via RF)

At channel search, not all channels are recognized or recognized with the wrong name

— device is not supporting PDC
— device is working with internal channel name table, if the channel name changes shortly, this may lead to
wrong information

Image is flat and low contrast (Video/VGA)

— The factory defaults for brightness and contrast are suitable for most applications, only for exceptions this
settings should be changed
— Also other settings and adjustments might influence the picture quality, for this reason always first reset to
factory
defaults (OSD—Menu)

Picture out of focus in VGA—Mode

— Max. resolution of 848x480 is recommended
— in rare cases (poor signal quality or unfavourable display), auto—adjustment is not able to work correctly
(see Operating manual), select manual adjustment in the OSD
— Adjust focus in menu Picture to the signal source

Technical Manual 13

AV3 Signalprocessing

U22

C92

R483 R482R71

C513

C123

C120

C110

VR3

VR8

R80
R79

R127

R491

+

C521

RN23RN22RN21RN20RN19RN18RN16RN15

R494

C417

+

R94

R90

X2

C106 C116

+

R449
R164

R362

C66

C51

C56

RN17

R389

C469

U32

C345

C331

U39

C100

D3

+

C420

R91

R92

C124

+

R83

C186 C170 C268 C180

C147

C107C103

TP45

TP44

+

C230

C184

C148

R147

+

C87

C146

+

C121
R106
R105
R104

U18

R103
R102
R101
R100

R99

R449

TP4

C115

TP5

C40

R53

R30

R358

C55

+

C515

R436

C55

TP7 TP32

C525

+

C526

C36

C52

+

C57

TP16

R315

R322

Z2

R462

R365

R364

R282

C144

C410

C411

J10

TJ1

T8

T7

C111

C91

U19

C530

L9

C496

R272

R383 R388

R381
R308

C236

R76

R93

R88

C253

C209

RN51RN50RN49RN48RN47

C183C131

TP12

R229

C191

VR7

C133

+

C185

L35

R148

C205

C249

R233
R230

+

RN61

C186

C178

C263

C252

U16

L22

C345

C145

R394

C138C473

U41

RN25

C472

C139

C469

U26

C232

C377

CN7

C70

TP38

TP37

C201

+

C214

+

C194
C200

C199

C198

RN46RN45RN44

C197

C226

L16

R136

TP15

L23

C528

C175

C190

C213
C212

C351

R133

C189

L24

C208

R132

+

C193

C207

U23

C206

R131

R124

+

++++

C196

RN30

R143
C225

C239

C236

C218

C161

C229

C228

++

TP30

R231

R232

C179

C286

C306

C142

C132

X3

C117

T22

RN30

R251

TJ5

+

C124

+

TJ7

TJ8

C220

R492

C361

C478

C392C391

C244

L21

C181C182

R129

C203

R130

R204

T10

R152

C259

C276

R153

C217

C211

C114

R182

R138

C216
C262

+

C247

C479

R123
R125

C210
C202

C117

C258
C195

R126
C257

C186

R111

R114
C225

RN41 RN63

R215

T11

R151

R228

C222

R140

R217 R216

R142

R218

T13

R150

L15

R155

+

C271 C248

R174

C172

C288

R174

C399

+

C342

L31

L32

C282

C283C219 C373

L34

C505

C344

C503

+

C476

C475

C504

C477

C502
C285
C343

R122

RN38 RN34 RN31

TP33

+

M12

RN64

+

CN10

+

R480

C337

C335

R145

C241

TP14

C240

R160

TP17

R144

C250

C238

C224C223

+

+

C237

C231

++

C251

C265

C533C536

C278

C269

+

TP46

RN60RN59RN58RN57RN56

C300

C304

C273

U27

C261

C329

C303

C292

R166

T14

C268

R167

+

C328

L29

R159
C260

C277

C326C299

R163

C325

R190

+

C298

C324
C323

R189

C267

R188

C322
C321

C297
R187

C320

R186

C319

C296

C318

R185

C317

R184

C316
C315

C295

C226

R183

C314

+

R177

R172

C272

C313

+

VR5

C109

C105

R81

R70

C104

C7

R69

TPG1

+

TG2

L72
L73
L70

R247

C360

L68

L47

L67

C359

R262

L69

C370

C348

L61

L48

L71

R239

L63
L60

R379
R378

R439

C151

C371

R263

C527

L49

C338

R248

L12

R440

R258

R284

R287

C137

D11

R297

R240

R310

U12

R305

C362

L50

C393

R301

C419

C447

R304

C418

R309

C455

+

L77

C112

+

C291

L46

+

R222

T33

C440

U1

C125

R486

R170

R180 R196 R211

R485

R171

R181

R175

R484

R395

R156
R162
R166

U28

C275 C254 C234

TP19

TP21

R221R451R490
R210

C18

R226

R452

C281

C332

+

++

C357

TP11

R396

CN28

+

+

+

C270

R115

R393

+

C408C407

+

+

C400C334

R457
R448

C430

CN9

R493
R359
R282
R269
R256

+

R475

C119

R161

R281

R443R444R445

C489

C406

R256

C532

C375
C352

C534

TP24

TP6

C429

+

C396

C330

C333

C389

+

C388

R280R279R278

R293

C387

R461

R292

C386

R291

C385

R460

R459

C384

R416

C383
C382
C381
C380

C415

R470

C379
C260

VR10

C368

R472

C368C341

C414

+

C367

R227

R277

R226

R250R249

C404

C340

C366C365

R276

R225

TP23

R213 R214

C403

C339

C472

+

L44

U31

T23

C435

+

L42

R242

C395

C402C401

R265

C364

R242

TP22

C351

R255

R275

T21

T25

R254R252

R224

C394
R264

R241

C363

C350

R223

R253

R274

T20

T24

R82

C82

C75

R346

TP43

U20

TP9

RN62

TP28

C167

+

M3

X7

C187

R455
R456

RN36 RN53

C305

CN23

C274
C234

C166

C246
L27
R154
R453
R454

R109

R117

+

R108

C155

J3

+

C474

+

C242

C345

+

C143 C37

C501

C233

C284

R110

R33

C279
R399

R32

X6

R398

R397

R400

C280

R401

C152

L28

C154

RN42

RN52

C374

TP18

C129

C76

R450

C67

C6

R8
R9

U40

R273

T38T39

R386

R380

T37

R385

T36

J9

+

C141

C287C160

C94

R75

+

C153

RN39

RN33

RN40

RN32

C171

+

R112

T41

R409

R113

R407

R408

T42

R406

TP13

C227

R479

TP39

TP40

C428

+

L54

C21

C163

+

R469

VR4

C176

R467R468

C164

+

R330

T40

R325

R314

R390

L14

C130

R391

R384 R387

L11

C174L13

C162

R119

C157

T9

R121

+

R437

R116

TP27

TP42

X4

C150

C156

TJ2

TJ3

TJ4

R363

R11

R372 R373

R118

R120

R74

C95

C149

C159

C173

C83

R72

R73

+

M18

+

M14

L62
L46

L65
L66
L58
L59
L57
L56

C441

+

M10

R212

C235

R134

C204

C349

R128

R202

R203

R139

C255

C192

R137R141

R146

C290C289

R176

C101

C431

C470

U34U33

+

+

MP1

C405

+

C442

U35

+

D15

D14

C422

C427

R471

R290

R300

R307

C413

C426

C439

R289

R299

R306

C412

C425

C438

+

C436

+

C446

C301C264

+

++

C445

CN29

CN20

C448

+

W1

TRG4

DDC

L1

R487

L88

C458C457

R343
R342

L87

C293

L39

L25

L40L45

L17L43

CN6 CN4

L75

CN22

L76

R323

+

M11

R530

R328

D21

L94

R327R326

L93
L92
L91

D20

L90

R344

D19

L89

D2

+

D18

C497

D16

+

W9

L84

R320

R340
C457

C453

L85

R321

R341
C468

C454

L82

R318

R338
C465

C451C452C450 C449

L83

R319R316R317

R339
C466
C463
R336

L80
C464
R337

L81
C462
R335
R334

L79
C461
C460

L78
R333
R332
C459

L53

CN14 CN15 CN3 CN5 CN27

F1 F2

R235

++

M13

7

U2

C29

+

R149C96

R153

VR11

C423

C122

+

+

C128

C424

R158

6

R347

RN43RN53

CN18

R415
R419
R420
R416

R418R414R411

R421

R423

R91

R417

C86C54

C69

R410

R5

+

C3

C220

U43

R2

C2

R4

R3

R34

R493

R270
R271

TP35
C433

+

C432

CN33

U42

R412 C127

C68

L41

R422R413

C511

+

R425

R427

R424

R426

C5

C22

R428

5

4

3

R429

U3

C27

+

+

C9

R348

R356

R357

L8

L7

C4

L6

L4

+

CN12 CN13

C12

TB25

M4

+

R473

R474

R62

T15

R40

R46

R41

R43

R374

R68

CN19

R375

R84

R57

T16

R58

R85

R67

L5

R12
R15
R14

R17

CN21

R283

C50

+

R466

R465
R464

VR6

+

+

C11

C10

+

R353
R352

T2

R24
R50

T50

R49

R55

R56

U4

C15

+

C14

+

C13

VR6

R351

C487

C488

R35

R27

R26

R463

R434

J1

C434

C17

C19

C33

R490
R489

R13R16

C444

C24

+

C443

C23

U24

C307

R488

CN8

2

R463

TP10

TRG2

L3

CN11

R329

R200

J7

R201

R478

C369

C27

R458

TG1

1

+
+

M2

M17

TP8

R234

R7

R59

TP36

R259

CN16

C1
R6

C471

T1T3

R1

R405

R404

R476

R477

+

M6

+

C90

VR2

C80

TP34

+

C85

C98

+

TP2

+

M8

RN1

C64

TP50

TP51

TP52

CN32

M5

++

M7

+

T44

T43

R20

R432

R433

R430

R431

R438R442

R206

R23
R311

T46 T45

R441

R25
R31

TP47

R313R296

+

C31

C30

+

+

MP2

+

C16

C28

T48

U30

R368

R369

R367R366C398

L2

VR9

R435

R209 R173
R237

D17

+

C93

C308

R208

U48

C81

R355

C32

C337

D12

C335

R198

R219

C347

C346

+

U37

D4

+

C397

+

L19

C529

L26

RN14 RN24 RN27 RN28

T32

D5

+

C74

C356

C336

T28

C353

R236

C354

C421

R207

C358

C355

R286R257

TP1

R107

R371 R370

J6

R29
R28
C39

R18 R19

J5

C409

R39

D1

R38

C38

J2

C37
C36 C486

F3

R199

CN2

+

R197

R196

C327

C302

R42

C312

U5

T4

U10

R48

R45
R44

R191

R302

C376

C26

C53

U11

C97

+

C84

C73

+

D10

D8

T17 T18

R179

R205

C60

J4

R285

C79

+

C63L10

R98
R78

C390

C59

C523

R86

C34

+

R10 R64

R47

C113

T5

R361
R360
R52
R51

U9

R195

C310

C309

R194

T19

T12

C302

R288

T47

R298

v

U17

C102 C158

C221

+

C78

C295

R261

C267

C294

C99

+

+

C61

C136R376R377

C88

C140

+

C506

C402C403

+

M16

C509

+

C507

R245

R178

C506

+

R244

R354

R60

R54

U13

C89

+

R481

C71 C72

U15

C65

CN117

R66
R87R89R392

C524

TP3

U14

R63

C49

C522

CN26

R238

R246

R65

C165

R447

R446 R77

RN29

CN24

U12

RN26

T6

R21 R22

R220

+

M15

C311

C108

R193

R167 R192

T35

R312

M19

R97R303

R95

Z1

R324

T34

D6

R96

D7

C135

D9

D13

HS1

++

AV3+

7

CN1

6

5

4

3

2

1

ZERO POINT

B B

C C

D D

E E

F F

G G

H H

I I

J J

K K

L L

M M

N N

O O

P P

Q Q

14 Technical Manual

A A

7. Startup Sequence

Description and Pinning

Bolzen für Erdung, Zahnscheibe verwenden
Earth over bolted assembly, use a toothed lock washer

12L

N

CON1

roter Sockel
red socket

CN02

CN03

Netzteil Bestandteil des PDP

Power Supply Unit (PSU) Part of PDP

1 ACD
2 RLY ON
3 +5Vst_by 1,2,3 +5V
4 GND 4,5,6 GND

5 Vs ON 7,8 +12V
1,2 30V
3,4 GND

Audio
Power

CN802 CN801 CN803

6 5VD 9,10 GND

7 n.c. 11,12 n.c.

+5VSB and

PSU control

Power

5V / 12V

Startup Sequenze

CN805CN806CN807

Verkabelung, vormontiert

Wiring, premounted

90432.921

300lg

90432.923

300lg

CN11 CN19 CN13
Audio

Power in
4 pin
1,2 GND
3,4 30V

J7

CN2

CN8

Keyboard

7 pin

1,7,18 GND
3 LED (rt/rd)
4 LED (grn)
19 +5VST
20 IR Rec

AV3plusL

Control

7 pin

1 ACPWCK
2 RLYON
3 5V STBY
4 GND
5 VSon
6 FPVRR
7 n.c.

Power +5V/+12V in

PIP-Tuner

90432.901

L

R

CN29

CN20

6774

10 pin

1 +5VST
2,4,6 GND
3,5 +5V (VCC)
7 +12V
8 PSSTDBY
9 PSDPMS
10 FPVRR

X1
1 GND 11RD+ 19 GND
2 DISPEN 12 RB- 20 R3+
3 SLE 13 GND 21 R3­4 SCLK 14 RCLK+ 22 GND

f1

f1

5 SDATA 15 RCLK- 23 RA+

f2

6 GND 16 GND 24 RA­7-9 n.c. 17 RC+ 25 GND
10 GND 18 RC-

90432.922

LVDS-Adapter

Startup sequence AV3 in connection with the PSU of the Plasma:

1. Step
On CN801 of the PDP PSU, Pin3, +5VDC appears.

200lg

90432.902

X1

Scart 1

Scart 2

2. Step
CN801, Pin1 (ACDET) switches to ”high”, as soon as the voltage from the PSU becomes higher than 90VAC. If the
voltage remains under 90VAC, the startup will stop here (is interrupted by the AV3).

3. Step
To start the plasma, the signal RYLON (CN801, Pin2) is set to 5V, which causes the startup of the low voltages on the
PSU, as e.g. 5V, 12V, 30V, etc.

4. Step
The signal 5VDET (CN801, Pin6) is under surveillance. If the signal is ”low”, the AV3 will setRYLON = 0V (this causes
the switch off of the panel).

5. Step
On ”high”—signal (RYLON = 5V) the AV3 will set VSON to ”high” (CN801, Pin5) and will switch also the high voltages,
the panel is under operation.

Technical Manual 15

Service OSD

8. Service OSD

Beside the User—OSD there is an additional Service—OSD, in which settings and adjustments can be
made whichwill change the performace of the display, alternatively will show information which are helpful
for service. For this reason the access to this menu should only be familiar to suitablely educated persons.
To enter the service menu, first the user menu has to be opened (button ”menu” on your remote control),
afterwards you can enter the service menu by typing the code ”8640” on your remote control.
The following menu will appear (the values which are shown are only wildcards and will differ in most cases
from the effective values):

Version / System Info
RS232 setting 4800
Customer logo -1­Operation Time
Default Color Setting
Power On Input PC (RGB)
Temperature Setting
Full Mask None
Sub Laustärke
Alles zurücksetzen

8.1 Submenus

The following items can be adjusted directly in the service menu:

RS232 Setting (option)

Customer Logo (option)

Power On Input

Full Mask

Here the download speed for an eventual software
update is set. If there are problems during an update. it
is recommended to reduce the speed.

In the internal memory of the AV—electronic logos of
different customers are archived. To avoid irritations,
this setting should not be changed.

This item defines the input source, which is activ when
the unit is started up. There are all input sources
available to chose from, additionally there is the
possibility of ”Last”. If this is chosen, the device will start
up autiomatically with the same source it has been in
when being switched off.

For service purpose (Pixelfault finding, check of Burn—
In effects) it is helpful to display a picture in Red, Green,
Blue or White. The selected mask is shown after leaving
the menu. When ÒInvertedÓ is selected, the actually
displayed image will be shown in inverted colors. This
function might be helpful to erase slight Burn—In effects
(the ”Burned—In” image must be available). Items,

which are not part of the above mentioned table, can
be set via the following sub—menus:

16 Technical Manual

8.1.1 Version / System Info

Sub menu Version / System Info shows the actual
software version, the hardware version and the
audio processor type (MSP).
Ther are no adjustments possible. In all service
cases, where consultation with the manufacturer
should be necessary, for this information will be
asked.

8.1.2 Operation Time

Sub menu Operation Timeshows the operation
time of the complete unit (also standby) as well as
the operation time of the panel.
Via ”Reset” both values can be reset to ”0” . This is
necessary when, e.g. the panel has been
exchanged during repair.

CAUTION:

is no other possibility to assess the operating time
of the device. It is highly recommended to record
the operating time in written form in the repair form
or in different form (e.g. photograph).

If here the values are reset to ”0”, there

Service OSD

Sofware % z
Sofware % z

Hardware % z
Hardware % z

MSP % z
MSP % z

Operation Time % z
Panel Time % z
Reset

8.1.3 Default Color Setting

In sub menu Default Color Setting the basic
adjustment of the colors for all input sources is set.
The offset value defines the color temperature for
the complete display, including the background, the
gain-value influences the colors of the image
content.
As a basic principle it should always be tried to do
any color adjustments via the user—menu, for
certain applications, however, it might be
necessary to do adjustments in this menu (e.g.
applications in T.V.
producing branches).

8.1.4 Temparature Setting

The AV3—electronics contains an implemented
temperature—control, which consists of three
steps

(see chapter 4.9 on page 7)

made values are for optimum operation of the
device and should only be changed in extreme
individual cases after consulting the manufacturer.
Any defects, caused by unauthorized changes in
the temperature control, will automatically lead to
loss of any warranty claims.
For service purpose it is possible to reset the
Max.— / and MIN.—Temperature. This allows to
check, if the unit moves towards critical

temperatures at certain applications.

. The factory—

Rot Offset -123-

Red Offset -123­Grün Offset -123-

Green Offset -123­Blau Offset -123-

Blue Offset -123­Rot Gain -123-

Red Gain -123­Grün Gain -123-

Green Gain -123­Blau Gain -123-

Blue Gain -123-

Temperature 1 -12.3­Temperature 2 -12.3­Temperature 3 -12.3­Max. Temp. All Time -12.3­Min. Temp. All Timer -12.3­Reaet Max/Min

Technical Manual 17

Service OSD

8.1.5 Sub Volume

Sub—menu Sub Volume sets the pre—adjustment
for the volume of all input sources, respectively Line
out Audio.
Factory—made all levels are set to the same value,
in some cases the output levels of some peripheral
devices on customer side might be different. For this,
the customization can be done here.

8.1.6 Reset Everything

With Reset Everything all adjustments, the channel
memory, the Max.— / Min.—Temperatures as well
as the Operating hours will be reset, which means
the device is in the same status as originally delivered
by the manufacturer.
This should only be done after consulting the
manufacturer, as with the erased temperatures and
operating hours important information will be lost
which might be necessary for warranty claims.

CVBS -12­PC -12­YC -12­SCART1 -12­SCART2 -12­TV -12­YUV -12­Subwoofer -12­Volume ”Audio Out” -12-

18 Technical Manual

9. Plasma Display

Following you will find the description of the Plasma Display Type PDP 42V6####.

9.1 Rear view including PCBs

Plasma Display

E/X Tube

1234567

Type Labels

Flex Cable

Y-SUS

Controller

Signal Input

X left X right

(R, G, B, H/V Sync)

Z-SUS

If a repair exchange has to be carried out, special care has to be taken of the so called E/X Tube. Via this
sealed glass tube the panel is bleeded first, after that it becomes filled with gas. If this tube becomes broken,
the panel is totally lost. Also when changing the panel, take care of the flec cables, any damages will also lead
to a total loss of the panel, as those cables are bonded between the glass layers of the panel.
On the so called T ype Labels you will find the panel type and the serial number of the panel. This information
should be noted on the delivery notes in case of repair exchange.

9.2 Schematic Configuration

The schematic configuration of the panel shows, which PCBs belong together and which signals are conducted
to the panel. The mentioned voltages Vs, Va and Vcc are from the PSU, which is part of the panel. Any
exchange of the PSU by untrained persons is not recommended, as the voltages on the PSU have to be
adapted to the correspondingpanel.

Technical Manual 19

Plasma Display

(LVDS Input)

RxD+
RxD­RxC+
RxC­RxB+
RxB­RxA+
RxA­RxCLK+

Serial Interface

Input

Interface

Controller

Scan Driver

Memory

Controller

Driver

Timing

Controller

Color Plasma

Display Panel

852 x 480 pixels

Vs (180V~190V)
Va (55V~65V)

Va (+5V)

Applied V oltage
level is specified at
the thime when full
white pattern
displayed on panel.

Adress Driver

Common Sustain Driver

20 Technical Manual