Grundig 37-8850, 47-7851 Schematic
TV Service Manual
Service
Manual
Chassis LN
Berlin
32-8850 T GBH0832
37-8850 T GBH0837
Vision 7
47-7851 T GBH1647
Zusätzlich erforderliche Unterlagen für den Komplettservice
Additionally required Service Documents for the Complete Service
Sicherheit
Safety
Materialnr./Part No.
720108000001
Materialnummer / Part Number 720100540000
Änderungen vorbehalten / Subject to alteration
TCC 0309 MP • Prepared in Germany
http://www.grundig.com
GRUNDIG Service Chassis LN
Es gelten die Vorschriften und Sicherheitshinweise gemäß dem Service Manual "Sicherheit", Materialnummer
720108000001, sowie zusätzlich die eventuell abweichenden, landesspezifischen Vorschriften!
Inhaltsverzeichnis
Seite
Allgemeiner Teil .................................. 1-2…1-20
Allgemeine Hinweise .....................................................................1-2
Geräte- und Display-Varianten ......................................................1-3
Technische Daten ..........................................................................1-4
Bedienhinweise .............................................................................1-6
Service- und Sonderfunktionen ...................................................1-19
Platinenabbildungen
und Schaltpläne .................................. 2-1…2-32
Hauptplatte XLN190 ......................................................................2-1
– Netzteil ....................................................................................2-11
– IN/OUT.....................................................................................2-13
– VGA .........................................................................................2-14
– HDMI........................................................................................2-15
– Tuner ........................................................................................2-17
– Demodulator ............................................................................2-18
– Scaler.......................................................................................2-19
– DDR2 (RAM)............................................................................2-23
– Flash ........................................................................................2-24
– LVDS ........................................................................................2-24
– VCO .........................................................................................2-24
– USB / RS232 ...........................................................................2-25
– Keyboard Interface / Reset ......................................................2-25
– Common Interface ...................................................................2-26
– Controller .................................................................................2-27
– Audio ........................................................................................2-28
– Verstärker .................................................................................2-29
– Verstärker Subwoofer...............................................................2-29
– Kopfhörerverstärker .................................................................2-30
– Audio Scart ..............................................................................2-30
HDMI-Platte XFZ193 ...................................................................2-31
Soft Touch Keyboard YCL192 ......................................................2-32
Keyboard YDK191 .......................................................................2-32
IR/LED-Platte XYN192 ................................................................2-32
The regulations and safety instructions shall be valid
as provided by the "Safety" Service Manual, part
number 720108000001, as well as the respective
national deviations.
Table of Contents
Page
General Section .................................. 1-2…1-20
General Notes ...............................................................................1-2
Product and Display Variants .........................................................1-3
Technical Data ...............................................................................1-4
Operating Hints ............................................................................1-12
Service and Special Functions ....................................................1-19
Layout of the PCBs
and Circuit Diagrams ......................... 2-1…2-32
Main Board XLB190XLB190 ......................................................................2-1
– Power Supply ..........................................................................2-11
– IN/OUT.....................................................................................2-13
– VGA .........................................................................................2-14
– HDMI........................................................................................2-15
– Tuner ........................................................................................2-17
– Demodulator ............................................................................2-18
– Scaler.......................................................................................2-19
– DDR2 (RAM)............................................................................2-23
– Flash ........................................................................................2-24
– LVDS ........................................................................................2-24
– VCO .........................................................................................2-24
– USB / RS232 ...........................................................................2-25
– Keyboard Interface / Reset ......................................................2-25
– Common Interface ...................................................................2-26
– Controller .................................................................................2-27
– Audio ........................................................................................2-28
– Amplifier ...................................................................................2-29
– Amplifier Subwoofer .................................................................2-29
– Amplifier Headphone ...............................................................2-30
– Audio Scart ..............................................................................2-30
HDMI Board XFZ193 ...................................................................2-31
Soft Touch Keyboard YCL192 ......................................................2-32
Keyboard YDK191 .......................................................................2-32
IR/LED Board XYN192 ................................................................2-32
Ersatzteillisten ...................................... 3-1…3-3
Allgemeiner Teil
Allgemeine Hinweise
Vor dem Öffnen des Gehäuses den Netzstecker ziehen!
Achtung: ESD-Vorschriften beachten
Leitungsverlegung
Bevor Sie die Leitungen und insbesondere die Masseleitungen lösen, ist
die Leitungsverlegung zu den einzelnen Baugruppen zu beachten.
Nach erfolgter Reparatur ist es notwendig, die Leitungsführung wieder
in den werkseitigen Zustand zu versetzen um evtl. spätere Ausfälle
oder Störungen zu vermeiden.
Durchführen von Messungen
Bei Messungen mit dem Oszilloskop an Halbleitern sollten Sie nur
Tastköpfe mit 10:1 - Teiler verwenden. Außerdem ist zu beachten, dass
nach vorheriger Messung mit AC-Kopplung der Koppelkondensator
des Oszilloskops aufgeladen sein kann. Durch die Entladung über das
Messobjekt können Bauteile beschädigt werden.
Messwerte und Oszillogramme
Bei den in den Schaltplänen und Oszillogrammen angegebenen
Messwerten handelt es sich um Näherungswerte!
Austausch der Hauptplatte
Nach Austausch der Hauptplatte müssen alle Einstellungen im Service
Mode nach Tabelle "Grundeinstellwerte" (Punkt 1 im Kapitel "Serviceund Sonderfunktionen" auf Seite 1-19) eingestellt werden.
Spare Parts Lists .................................. 3-1…3-3
General Section
General Notes
Before opening the cabinet disconnect the mains plug!
Attention: Observe the ESD safety regulations
Wiring
Before disconnecting any leads and especially the earth connecting
leads observe the way they are routed to the individual assemblies.
On completion of the repairs the leads must be laid out as originally
fitted at the factory to avoid later failures or disturbances.
Carrying out Measurements
When making measurements on semi-conductors with an oscilloscope,
ensure that the test probe is set to 10:1 dividing factor. If the previous
measurement was made on AC input, please note that the coupling
capacitor in the oscilloscope will be charged. Discharge via the item
being checked can damage the components.
Measured Values and Oscillograms
The measured values given in the circuit diagrams and oscillograms
are approximates!
Change of the Main Board
After changing the main board all settings in the service mode must
be done according to the table "Basic Settings" (point 1 in chapter
"Service and Special Functions" on page 1-19).
1 - 2
GRUNDIG Service Chassis LN
Geräte- und Display-Varianten
Display- und Product Code
Je nach Verfügbarkeit werden
Displays verschiedener Hersteller
eingebaut. Dies führt zu unterschiedlichen Chassis-Bestückungen, sowie zu Änderungen in der
Software. Bei Ersatzteilbestellungen und Software-Updates achten Sie bitte auf das eingebaute
Display, sowie auf den "Product
Code". Angaben dazu finden
Sie auf der Geräterückseite.
Sollte in der Ersatzteilliste des
Service Manuals Ihr "Product
Code" oder Ihre Display-Variante
nicht aufgeführt sein, können Sie
eine aktualisierte Version auf
dem GRUNDIG Service-Portal
"http://service.grundig.de" finden.
Überprüfen Sie vor Austausch der
Hauptplatte, ob die Aufkleber der
Platinen identisch sind.
Product and Display Variants
Display- und Product Code
Depending on availability displays
of different manufacturer are built
in. This results in different chassis
mountings as well as a different
software. On spare parts orders
as well as software updates take
care of the fitted display as well as
of the "Product Code". Therefore
you can find information on the
labels on the rear side. If your
"Product Code" or display variant is not mentioned in the spare
parts list of the service manual,
please look for a current version
at the GRUNDIG service portal
"http://service.grundig.de"..
Before changing the main board
please check whether the labels
on the boards are identical.
1 - 3
Technische Daten / Technical Data
Order No.
Product Code
Destination
Approbations
IM-Languages
Remote control
EAN
Color
Italy-Homologation
DISPLAY
Panel
Wide-screen format
Response time
Brightness
Contrast ratio (Panel)
Dynamic contrast plus
Viewing angle vertical / horizontal (ca.)
Physical display resolution max. pixel
PICTURE
Motion Picture Improvement
Motion Adaptive Deinterlacing
Natural view HD Reference
Full HD
24p
HD ready 1080p
Line Flicker Reduction
Digital Color Transition Improv. (DCTI)
Digital Combfilter
Digital Luminance Transition Improv. (DLTI)
Picture Noise Reduction
Preset picture modes
Aspect ratios (Format switching)
Blackline detection
PIP
Multifold Tuner scan (Mosaic Picture)
PAT: Split screen (PICTURE + TEXT)
PAP: Double Window (PICTURE+PICTURE)
P2AT: Double Window + TXT
POP: PICTURE on PICTURE
Picture freezing
Zoom with point function
Auto 16:9 selection via Scart
Sharpness control
Blue Background
CHASSIS
TV-Chassis
Progressive
Tuner
Scaler
Keyboard
ELECTRONIC
Stand by indicator
EPG (Electronic Programme Guide)
Easy Dialog
Megalogic
Manual & autom. labeling of prog.
Programmable off timer
Programmable on timer
Intelligent channel search (Zapping funct.)
Programme Edit
Intelligent Programme Switch
Programme memory TV/AV (opt.)
Teletext/Fasttext/Toptext
Teletext options
Childlock
Menue languages OSD
OSD-style
Service mode
Hotel mode
TUNING
Autom. Tuning System with country selection
Frequency Based Auto Search
Automatic Micro-search
Automatic Programming
Manual fine tuning
Direct channel selection
Direct frequency selection
TV-Norm
NTSC-Playback via Scart (3.58/4.43)
Cable TV / Hyperband (S1-S41)
AUDIO
Mono/Stereo/Nicam
AV Stereo
Loudspeaker
SRS
Virtual Dolby
Magic Fidelity Sound System
Soundprojector
Matched Sound Delay (Lip synchronous)
Subwoofer
Dynamic Bass
DSP (Digital Sound Processor)
Balance Adjustment
AVL (Audio Volume Level)
PIP listening via Headphone.jack
Equalizer
Space Sound Effect
Audio mode
Audio amplifier
6 keys: ± for programme, TV/AV, menu, ± for volume 6 keys: ± for programme, TV/AV, menu, ± for volume
2 x 8/10W (R/L) + 3 x 7.5/10W (SW) nominal/music
Berlin 32-8850 T Berlin 37-8850 T Vision 7 47-7851 T
G.BH 08-32
V1U / V6Y
D, A, CH, Nordic
D,GB,F,I,DK,N,S,FIN
TP 1 or TP 2
40 13833-61434 0
glossy black
32" / 81cm Active Matrix TFT-LC-Display
ca. 6ms
ca. 500cd/m2
ca. 3.000:1
ca. 25.000:1
178° / 178°
WUXGA 1920 x 1080 (full HD) WUXGA 1920 x 1080 (full HD)
3D DeInterlacer
user, natural, rich, soft
Digital TV-AV PIP
via AV
LN (Trident - FHD 50Hz)
PLL frequency synthesizer tuning
Trident FX
blue LED
only via DVB-T
100 / 9
[
1000 pages
panel lock and programme lock
Grundig-style (blue & white) Grundig-style (blue & white)
full automatic sorting full automatic sorting
PAL/SECAM/BG/DK/I/L'/L
Analog Analog
[
2 wide band & 2 tweeter at the front side,
3 woofer at front side
3 x 7.5/10W nominal/music power
5 Band
cinema, music, sport, speech, user
power; audio output power total: 50W
G.BH 08-37
U6K/V6X
CE
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3D
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[[
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[[
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Basic
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/ [ /
[
Auto (WSS), 4:3 / 14:9 / 16:9 / Panorama / Cinema Zoom / Sky Top
22 languages: D, GB, F, I, E, P, NL, DK, S, FIN, N, TR, GR, PL, CZ, SK, SLO, H, RUS, RO, BG, SER
[
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/ [ /
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2 x 8/10W (R/L) + 2 x 10/15W (SW) nominal/music
D, A, CH, Nordic
CE
D,GB,F,I,DK,N,S,FIN
TP 1 or TP 2
40 13833-61433 3
glossy black
37" / 94cm Active Matrix TFT-LC-Display
PLL frequency synthesizer tuning
panel lock and programme lock
2 wide band & 2 tweeter at the front side,
2 x 10/15W nominal/music power
cinema, music, sport, speech, user
[
ca. 8ms
ca. 500cd/m2
ca. 1.500:1
ca. 25.000:1
178° / 178°
\
3D DeInterlacer
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3D
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user, natural, rich, soft
Digital TV-AV PIP
\
[
via AV
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[
LN (Trident - FHD 50Hz)
[
Trident FX
blue LED
only via DVB-T
Basic
\
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\
100 / 9
[
/ [ /
[
1000 pages
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PAL/SECAM/BG/DK/I/L'/L
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/ [ /
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2 woofer at back side
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5 Band
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power; audio output power total: 50W
D,GB,F,I,NL,DK,N,S,FIN,E,P,PL,CZ,H
40 13833-61528 6
47" / 119cm Active Matrix TFT-LC-Display
WUXGA 1920 x 1080 (full HD)
3D DeInterlacer
user, natural, rich, soft
Digital TV-AV PIP
LN (Trident - FHD 50Hz)
PLL frequency synthesizer tuning
Soft touch keys for menue/source,
± for programme, ± for volume, stand by
red LED (integrated in touch-keypad)
panel lock and programme lock
Grundig-style (blue & white)
full automatic sorting
PAL/SECAM/BG/DK/I/L'/L
2 wide band and 2 tweeter at the front side
cinema, music, sport, speech, user
2 x 10/20W nominal/music power (R/L)
1 - 4
G.BH 16-47
V1V/GAK/Y7T
All NSOs
CE,I
TP 2
glossy black
pending
[
ca. 5ms
ca. 500cd/m2
ca. 1.300:1
ca. 20.000:1
178° / 178°
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3D
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via AV
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[
[
Trident FX
only via DVB-T
Basic
\
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100 / 9
[
/ [ /
[
1000 pages
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Analog
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/ [ /
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5 Band
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Chassis LNGRUNDIG Service
Chassis LNGRUNDIG Service
DVB reception
DVB-T/S/C
Fully compliant to
Automatic/manual channel search
EPG (SI based)
8 Day Electronic Programme Guide
TV/Radio programmes
DVB-T Front end
Tuner inputs (Hyperband)
Input frequency (MHz) / Loop through
Input level / Impedance
Modulation
FEC
Hierarchical modulation
Common Interface
Video Decoder
MPEG profiles
Data rate
Resolution
OSD colors
Picture formats
Audio Decoder
Profiles
AC 3 Decoding
AC 3 Output
Modes
Software
Service information processing
DVB subtitling
Over air download (OTA)
Navigator
Last station memory
Favourite mode
POWER SUPPLY / CABINET
Power voltage
Range of regulation
Power switch
Integrated supply
Plug-in AC adaptor
Power consumption
Cabinet (WxHxD, cm) / Weight
FRONT PANEL CONNECTIONS
HDMI
Headphones
Cinch-AV socket
S-Video
USB
REAR PANEL CONNECTIONS
Euro-AV-Socket AV1
Euro-AV Socket AV2
Euro-AV Socket AV3
S-Video
Camera-AV
Wireless
YUV input / progressive
PC-input
PC-Audio in
DVI
HDMI
HD ready including HDCP
Common Interface
Headphones
Digital Audio out coaxial (SPDIF)
Video out
Subwoofer output
Audio out
USB
Antenna for terrestrial reception
DC-connector
Power supply plug
SUPPLIED ACCESSORIES
Remote control (incl. battery)
Power cord
Cables
Instruction manual
Circuit diagram
Wall fixture
Warning sticker in rear panel
Stand
Cleaning tissue
Berlin 32-8850 T Berlin 37-8850 T Vision 7 47-7851 T
Refitting possible via Scart socket Refitting possible via Scart socket Refitting possible via Scart socket
ATS type sorting & LCN type sorting ATS type sorting & LCN type sorting
-80,0 dBm to -20 dBm (at 16 QAM 2/3) / 75 Ohm
COFDM 2/8 QPSK 16/64 QAM
4:3, 16:9, pan scan, letter box 4:3, 16:9, pan scan, letter box
Mono, Dual Mono, Stereo, Joint Stereo
150W, standby <1W in accordance to IEC 62087-2002\180W, standby <1W in accordance to IEC 62087-2002
79,5 x 59,9,6 x 30,7cm with stand / ca. 14,5kg
CVBS in-/output, RGB input
Video-in: 3 x Cinch, Audio-in: 2 x Cinch
TP 1 / TP2 (from 12/2008 onwards) TP 1 / TP2 (from 12/2008 onwards)
Prepared for VESA standard adaptor 200 x 200[Prepared for VESA standard adaptor 200 x 200
[
[
1000 1000
1
177 - 862 VHF & UHF /
1/2, 2/3, 3/4, 5/6, 7/8
\
[[
MP@ML
Up to 15 Mbit/sec.
720 x 576
Fitting to TV-OSD
MPEG 2 layer I & II
\
SP/DIF
Dynamic PMT Dynamic PMT
[
[
via menu
from stand-by, as TV
4x free 4x free
220…240V, 50/60Hz
140V - 265V
[
[
\
79,5 x 56,6 x 10,3cm /
\
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CVBS in-/output, S-VHS
\
Hosiden
2x Audio, 1x Video
\
WUXGA
[
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3x
via HDMI
1 slot
3.5mm jack
[
\
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\
for software update only
\
[
grounded
\
[
\
swivel type
[
EN 300 744 & NorDig Unified Specification, V 1.0.3 and DTG, MHEG 1.06
[
[
1
\
1 x Coaxial-socket for TV-tuner-in, according to DIN 45325
177 - 862 VHF & UHF /
-80,0 dBm to -20 dBm (at 16 QAM 2/3) / 75 Ohm
COFDM 2/8 QPSK 16/64 QAM
1/2, 2/3, 3/4, 5/6, 7/8
MP@ML
Up to 15 Mbit/sec.
720 x 576
Fitting to TV-OSD
MPEG 2 layer I & II
Mono, Dual Mono, Stereo, Joint Stereo
91,2 x 67,7 x 32,8cm with stand / ca. 25kg
Video-in: 3 x Cinch, Audio-in: 2 x Cinch
SP/DIF
via menu
from stand-by, as TV
220…240V, 50/60Hz
140V - 265V
91,2 x 64,4 x 11,5cm /
CVBS in-/output, RGB input
CVBS in-/output, S-VHS
Hosiden
2x Audio, 1x Video
WUXGA
via HDMI
1 slot
3.5mm jack
for software update only
grounded
swivel type
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\
3x
[
\
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\
[
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[
[
ATS type sorting & LCN type sorting
177 - 862 VHF & UHF /
-80,0 dBm to -20 dBm (at 16 QAM 2/3) / 75 Ohm
COFDM 2/8 QPSK 16/64 QAM
1/2, 2/3, 3/4, 5/6, 7/8
MP@ML
Up to 15 Mbit/sec.
720 x 576
Fitting to TV-OSD
4:3, 16:9, pan scan, letter box
MPEG 2 layer I & II
Mono, Dual Mono, Stereo, Joint Stereo
Dynamic PMT
via menu
from stand-by, as TV
230V, 50Hz; in accordance to IEC 65
260W, standby <1W in accordance to IEC 62087-2002
112,9 x 79,1 x 33,0cm with stand / ca. 32,5kg
Video-in: 3 x Cinch, Audio-in: 2 x Cinch
140V - 265V
112,9 x 73,9 x 11,5cm /
CVBS in-/output, RGB input
CVBS in-/output, S-VHS
Hosiden
2x Audio, 1x Video
WUXGA
via HDMI
3.5mm jack
for software update only
grounded
Prepared for VESA standard adaptor 200 x 200
swivel type
[
[
1000
1
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SP/DIF
[
[
4x free
[
[
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3x
1 slot
[
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TP 2
\
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[
[
\
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1 - 5
Bedienhinweise Dieses Kapitel enthält Auszüge aus der Bedienungsanleitung. Weitergehende Informationen entnehmen Sie bitte der gerätespezifischen Bedienungsanleitung, die Sie unter
www.grundig.de, Menüpunkt Downloads/Bedienungsanleitungen herunterladen können.
1 - 6
Chassis LNGRUNDIG Service
1 - 7
Chassis LNGRUNDIG Service
1 - 8
1 - 8
Chassis LX IDTV (iX)GRUNDIG Service
Chassis LNGRUNDIG Service
1 - 9
Hinweis – Kindersicherung:
Mit dem PIN-Code 2005 können Sie die Einstellungen ändern.
Chassis LNGRUNDIG Service
1 - 10
Chassis LNGRUNDIG Service
1 - 11
Chassis LNGRUNDIG Service
1 - 12
Operating Hints This chapter contains excerpts from the operating instructions.
For further particulars please refer to the appropriate user instructions which
can be downloaded by www.grundig.com, submenu Downloads/Manuals.
Chassis LNGRUNDIG Service
1 - 13
Chassis LNGRUNDIG Service
1 - 14
1 - 14
1 - 14
Chassis BL (LX prime IDTV)GRUNDIG Service
Chassis BL (LX prime IDTV)GRUNDIG Service
Chassis LNGRUNDIG Service
1 - 15
1 - 15
Chassis BL (LX prime IDTV)GRUNDIG Service
Chassis LNGRUNDIG Service
1 - 16
Note – Parental control:
With the PIN Code 2005, you can change
your personal code.
Chassis LNGRUNDIG Service
1 - 17
1 - 17
1 - 17
Chassis BL (LX prime IDTV)GRUNDIG Service
Chassis LX IDTV (iX)GRUNDIG Service
Chassis LNGRUNDIG Service
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