Beko 23WL46G User manual

23WL46G 30WL46G
L6B TFT- LCD TV
SERVICE MANUAL

CONTENTS PAGES
Safety instructions 1
Technical specifications 2
Panel Specification 3
Back appearance of TV 5
Interconnectıon Diagram 5
Block diagram 6
Block diagram of power supply 7
Service mode 8
Service Mode items and values 10
Data sheet of important IC’s and parts 11
Recommended Part List 23
Frequency list of channels
25

SAFETY PRECAUTIONS
GENERAL GUIDELINES
1. It is advised to insert an isolation transformer in the
AC supply before servicing a hot chassis.
2. Always use the manufacturer’s replacement safety
components. The critical safety components marked
with on the schematics diagrams should not be
by other substitutes. Other substitute may create the
electrical shock , fire or other hazards. Take
attention to replace the spacers with the originals.
Furthermore where a short circuit has occurred ,
replace those components that indicate evidence of
overheating.
3. After servicing , see that all the protective devices
such as insulation barriers, insulation papers, shields
and isolation R-C combinations are correctly
installed.
4. When the receiver is not being used for a long time
of period of time , unplug the power cord of the
Adaptor from the AC outlet.
Color TFT LCD Module is very sensitive
both electrically and physically.Users,
therefore, are requested to follow the
“Guidance of handling color TFT LCD
Module”on the followings.
1-Be careful not to make scratch on the
polarizer.
Surface of polarizer is soft and can be physically
damaged easily.Please do not touch, push or rub
polarizer surface with materials over HB hardness.
2 - Keep clean the surface.
Please wear rubber glove when touch the surface of
LCD screen. Please use soft and anti-static material
as cleaner.
3 -Keep out of water.Water on/in the LCD may
cause electrical short or corrosion. Please wipe out
dry or water carefully.
4 -Prevent swift Temperature & Humidity
change.Instantaneous temperature and/or humidity
change can make dew or ice which cause
nonconformance such as malfunction.
5 - High temperature & high humidity
reduce the life-time.
LCD is not proper to be used at high temperature
and high humidity. Please keep specified
temperature and humidity condition.
6 - Keep out of Corrosive Gas.Corrosive gas
effect the polarizer and the circuit chemically and
cause defects accordingly.
7 - Electrostatic discharge can make
Damage
There are electro-static sensitive components such
as CMOS in LCD Module. Please earth human
body when handle the LCD.In addition, please do
not touch the interface connector pin with bare.
8 - Do not operate for a long time under
the same pattern
Operating LCD for a long time under the same
pattern can cause image persistence and can
damage it. Please follow following guidance.
1. Turn the power off when do not use.
2. Change the pattern periodically.
LEAKAGE CURRENT COLD CHECK
1. Unplug the AC cord and connect a jumper
between the two prongs of the plug.
2. Turn the receiver’s power switch.
3. Measure the resistance value with an ohmmeter,
between the jumpered AC plug and each exposed
metallic cabinet part on the receiver. When the exposed
metallic part a return path to the chassis the reading
should be between 4Mohm and the 20Mohm. When the
exposed metal does not have a return path to the chassis,
the reading must be infinite.
LEAKAGE CURRENT HOT CHECK
1. Plug the AC cord directly in to the AC outlet. Do
not use an isolation transformer for this check.
2. Connect a 2Kohm 10W resistor in series with an
exposed metallic part on the receiver and an earth,
such as a water pipe.
3. Use an AC voltmeter with high impedance to
measure the potential across the resistor.
4. Check each exposed metallic part and check the
voltage at the each point.
5. Reverse the AC plug at the outlet and repeat each of
the above measurements.
6. The potential at the any point should not exceed 1.4
Vrms. In case a measurement is outside the limits
specified , there is the possibility of a shock hazard ,
and the receiver should be repaired and rechecked
before it is returned to the customer.
HOT CHECK CIRCUIT
AC-Voltmeter
TO INSTRUMENTS
EXPOSED
METALLIC PARTS Water pipe
(earth)
2 K Ohm

Receiving System PAL B/G+I+D/K SECAM L/L'
Comb Filter Adaptive 4H\2H
LTI, CTI Filters +
DVI 1.0 Compliant +
Resolution VGA to SXGA
2 Pixel \ Clk Support +
Gamma Correction 8 to 10-bit LUT
PIP\PAP\POP\PAT +
OSD Graphics Based 8-bit\pixel
Level (1.5, 2.5, Teleweb) Teletext 1.5
Type (Fast\Top\Simple) Simple, Fast, Top
Page Memory 800p
WSS +
VPS\PDC +
4:3 +
16:9 +
14:9 +
Panorama +
Letterbox +
Subtitle +
Zoom +
WSS (Wide Screen Signalling) +
ATS (Automatic Tuning System) Frequency Search
Manual Search Channel Table Search
Number of Program Storage +
No Ident Timer +
Picture Freeze +
Equalizer +
AVL (Automatic Volume Level) +
Sound Status Memory +
Picture Status Memory +
Swap +
Child Lock +
Program Lock +
Picture Format Switching Tru Pin 8 +
Auto RGB Detect Tru Pin 16 +
Off Timer (Sleep Timer) +
On Timer +
Picture Smart (User, Soft, Natural, Rich) +
Sound Smart (User, Music, Sports, Cinema,
Speech) +
Scart2 Out Selectable +
S-Video Input Through Scart2 +
Audio Output Power
RMS in Max at 10% THD)
2x5W for 22"W, 23"W
2x10W for 26"W
2x10W for 30"W
Stereo (German A2, Nicam, BTSC) German A2, Nicam
S-video In (DIN) 1
AV In (3 RCA) 1
AV Out (3 RCA) 1
PC Audio (L, R) 1
D-Sub 15 1
Headphone 1
CVBS In 4
Y\C In 1
DVI In YES
CVBS Out 4
L6B TECHNICAL SPECIFICATION
Picture Formats
(4:3, 16:9, 14:9, Panorama, LetterBox,
Subtitle)
Timer
DVI Receiver
Teletext

Sizes 22" 23" 26" 27" 30" 32"
Manufacturer Samsung Samsung LG
-
Philips Hannstar
Samsung LG-
Philips AUO Chimei Chimei AUO LG-Philips
Interface Single LVDS Single LVDS Singlel LVDS Singel LVDS Single LVDS Single LVDS
Resolution WXGA (1280x720) WXGA (1280x768) WXGA (1280x768) WXGA (1280x720) WXGA (1280x768) WXGA (1280x768)
Brightness (cd/m2)>= 450 450 450 550 550 450
Contrast>= 500 400 400 600 600 700
Response Time
(Tr+Tf) msec =< 25 25 25 25 25 23
Viewing Angle
R\L\H\L>= 85/85 85/85 85/85 85/85 85/85/85/85 85/85/85/85 85/85/85/85 85/85/85/85
Adaptor İnput 15V 24V Built-in TV Built-in TV Built-in TV Built-in TV
PoweR consumptions 100W 100W 120W 120W 140W 180W
St-By Power
Consumption <4W <4W <4W <4W <4W <4W
Input Range 100V-240V/50- 60Hz 100V-240V/50- 60Hz 100V-240V/50- 60Hz 100V-240V/50- 60Hz 100V-240V/50- 60Hz 100V-240V/50- 60Hz
PANEL SPECIFICATION

NOTE: LOCATION AND THE SHAPE OF IR /LED BAORD, CONTROL BOARD AND MAIN SWITCH
BOARD MAY CHANGE ACCORDING TO THE COSMETIC OF THE TV AND SIZE
BACK SIDE APPEARANCES
CONTROL
BOARD
220VAC INPUT
POWER
SWITCH
LED/IR BOARD
SPEAKERS
MAIN
CHASSIS
POWER SUPPLY
BOARD

CN1
CN2CN3
JP453
JP451JP452
S150
JP450
S2
S350
S50
KEY BOARD
MODULE
IR RECEIVER/LED
MODULE
MAIN POWER
SWITCH
MODULE
220V AC
INPUT
S550
TO PANEL
TO
PANEL
TO HEADPHONE JACK
SPEAKER
MAIN CHASSIS POWER
SUPPLY
MODULE

SCART 1 2 3
AUDIO PROCESSOR
MSP3410D
Audio Amplifier
TA2024
Headphone
Amp.
TDA1308
Tuner-Main
Tuner-PIP
IF IC TDA9886T
IF IC TDA9886T
Video Switch
TDA6415C
PIP-Video
Main-Video
Video In/Out
Audio-In/Out
Audio-Switch
TDA6420
Pin 8 Switch
PCF8591
RGB Switch
PI5V30
AV4 Video-In
AV4
Audio-In
AV-Out Video
AV Out Audio
PC DVI Audio -In
Audio
In-Out
SC1-SC2 RGB
Headphone Jack Speaker
QSS-Main
QSS-PIP
I2C Communication
Video-PIP
Video-Main
Scart RGB
SVHS Y/C
Multi Standard
Video Decoder
SAA7118MP
Multi Standard
Video Decoder
SAA7118MP
EEPROM
24LC21 EEPROM
24LC21
Dual İnterface for
FPD
AD9887
RGB HS/VS-In DVI Input
D-SUB 15 socket DVI Socket
SDRAM
MT48LC16M
PW1231
De-Interlacer
PW181
IMAGE
PROCESSOR
De-Interlacer
Scaler
OSD
Micro-Cont.
Gamma Corr.
EEPROM
24C64
Flash Memory
AM29VL160
LVDS Transmitter
DS090C385
Progressive
or Intrelaced
24 Bit Dual
RGB ,HS,VS
DE,PCLK
TO THE
PANEL
16 Bit
YUV
24 Bit RGB
48 Bit RGB VS/HS
16 Bit
YUV
Stand by
LED’s
Reset
Mute
B/L Enable
Digital Dim
IR In
L6B BLOCK DIAGRAM
SVHS Socket
RF In

J450
12V F450 +2,5V_STBY
(5V) +5V_STBY
DC_IN
GND
F451
S450 +3,3V_STBY
12V '33V +1,5V_STBY
12V_AMP
GND
+5V
+8V
STAND_BY +3,3V
+12V PANEL_POWER
PNL_EN +12V_INVERTER
L6B POWER SUPPLY BLOCK DIAGRAM (MAIN CHASSIS)
U451
FDS9933A
U454
LM2576
U458
NCP1117
U452
FDS9933N
U457
NCP1117
U453
FDS9933N
U455
LM2576
U456
LM317
VOLTAGE
DOUBLER
U450
NCP117

L6B SERVICE MENU
1. Activating the Service Menu
When the menu is on the screen press ‘9’, ‘3’, ’0’, ’1’ on the remote controller. This will
activate the service menu.
2. Service Menu Structure
The service menu has three items: display, calibre and version
2.1 Display
Display item has seven options:
a- Panel
Panel option gives information about the current panel resolution. It is a read only
option and can not be set.
b- Power on time
Power on time gives information about the last update time of the SW running. It
is a read only option and can not be set.
c- Backlight on time
Backlight on time option reserved.
d- Scart prescale
Scart prescale option sets the prescale values for the input sounds entering the scart
input of the MSP(Micronas Sound Processor). Changing this value you can adjust
the level of the output sound going to loudspeakers for all the sources except the
Tuners. The range is between 0 and 100.
e- nicam prescale
Nicam prescale option sets the prescale values for the Nicam standard sounds for
tuner inputs. Changing this value you can adjust the level of the output sound
going to loudspeakers for Nicam sounds entering the analog sound input of MSP.
The range is between 0 and 100.
f- fm/am prescale
fm/am prescale option sets the prescale values for the FM/AM standard sounds for
tuner inputs. Changing this value you can adjust the level of the output sound
going to loudspeakers for FM/AM sounds entering the analog sound input of MSP.
The range is between 0 and 100.
g- Agc(Automatic Gain Control) adjust
Agc adjust option sets the input voltage going to IF decoder AGC pin. Changing
this value you can adjust this voltage for optimum Tuner performance. The range
is between 0 and 31.
h- R/G/B Brightness/Contrast: These are used for color bias adjustment. The range is
Between 0 and 255

2.2 Calibre
Calibre item has nine options:
a- video format
Video format option force the video format to the desired format. Selectable
formats are Auto, Pal, NTSC and SECAM.
b- colorspace
Colorspace option gives the information about the video input colorspace input to
PW181 IC. Do not change this value unless an error occurred in the colors
displayed.
c- test pattern
This option activates the internal pattern of PW181 IC. There are 3 choices: none,
vert bars, solid color. None will deactivate the internal pattern. Vert bars choice
activates the bar pattern for the selected color component. Solid color activates the
solid pattern with one color selected in color component and also you can change
the level of the color by solid field level.
d- Color components:
This option selects the color for the internal pattern of PW181 IC. There are 4
choices: all, red, green and blue. If you choose all, you can see the white pattern
and if you choose one of the other choices you can see the test pattern with the
selected color.
e- solid field level
This option will adjust the level of the colors for the test pattern. The range is
betwwen 1 and 64.
f- Initial ATS
This option will enable or disable the Initial setup for the TV. Setting this option to
On, the TV will open from the Quick setup menu. Setting this option to Off will
disable this option.
g- factory reset
Factory reset option executes a reset operation for the NVRAM. Pressing OK
when this option is selected will erase the NVRAM and load default values to
NVRAM.
h- dpms
This option selects the Power option for the TV. Setting this option to On the TV
will switch to the last state for power on transition. Setting this to Off will disable
this option and the TV will always switch to Stand-by state while power on
transition.
i- osd timeout
This option sets the OSD timeout for the main menu structure. Selections are 5, 15
and 60 secs. The default is 60 sec.
2.3 Version
This item gives the information about the version of the software. Also you can see the
last modified time for the GUI(graphical user interface).

display menu
ITEM TYPICAL VALUES/OPTIONS
panel 1280x768
power on time 03:39:45
back light time 03:39:45
scart prescale 25
nicam prescale 45
fm/am prescale 24
agc adjust 16
red brightness 128
red contrast 128
green brightness 128
green contrast 128
blue brightness 128
blue contrast 128
calibre menu
ITEM TYPICAL VALUES/OPTIONS
video format auto
color space RGB
test pattern none
color components all
solid field level 33
initial ats on
factory reset press <ok> to reset
dpms on
osd time out 60 sec
version
ITEM TYPICAL VALUES/OPTIONS
Software
SL630T_CH1_T13 L6B 1.22 Chi30
GUI
Project; L6B Toshiba
Generated Date: October 01,2004 at 22.42
L6 CHASSIS SERVICE MODE ITEMS

TEA6415C
BUS-CONTROLLED VIDEO MATRIX SWITCH
■20MHz BANDWIDTH
■CASCADABLE WITH ANOTHER TEA6415C
(INTERNALADDRESS CAN BE CHANGED BY
PIN 7 VOLTAGE)
■8 INPUTS (CVBS, RGB, MAC, CHROMA, ...)
■6 OUTPUTS
■POSSIBILITY OF MAC OR CHROMA SIGNAL
FOR EACH INPUT BY SWITCHING-OFF THE
CLAMP WITH AN EXTERNAL RESISTOR
BRIDGE
■BUS CONTROLLED
■6.5dB GAIN BETWEEN ANYINPUT AND OUT-
PUT
■-55dB CROSSTALK AT 5MHz
■FULLYESD PROTECTED
DESCRIPTION
The main function of the TEA6415Cis to switch 8
videoinput sources on the 6 outputs.
Each output can be switched to only one of the
inputs whereas but any same input may be con-
nected to several outputs.
Alltheswitching possibilities arecontrolled through
the I2C bus.
DIP20
(Plastic Package)
ORDER CODE : TEA6415C
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
INPUT
DATA
CLOCK
PROG
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
GROUND
OUTPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
VCC GROUND
6415C-01.EPS
PINCONNECTIONS
SO20
(Plastic Micropackage)
ORDER CODE : TEA6415CD

919
18 17 16 15 14 13 12
1
3
5
6
8
10
11
20
274
BUS
DECODER
DATA GNDCLOCK VCC
TTX LUMA
CHROMA
POWER
PIP MAC
DEC.
GND
CVBS
(AMTUNER)
MAC SIGNAL
(AMTUNER)
CVBS
(FM TUNER)
MAC SIGNAL
(FM TUNER)
SYNCHRO
(TTX/BTX)
PERI
TV1 PERI TV2
CVBS
(PERI PLUG2)
PROG
CVBS
(PERI PLUG1)
CVBS
(MAC/DEC)
T
E
A
6
4
1
5
C
6415C-02.EPS
BLOCK DIAGRAM
ThemainfunctionoftheICis toswitch 8videoinput
sources on6 outputs.
Each output can be switched on only one of each
input. On each input an alignment of the lowest
level of thesignal ismade(bottomof synch.top for
CVBS or blacklevel for RGB signals).
Each nominal gain between any input and output
is 6.5dB. For D2MAC or Chroma signal the align-
ment is switched off by forcing, with an external
resistor bridge,5 VDC on the input.Each inputcan
be usedas a normal input or as a MAC or Chroma
input (with external resistorbridge). All the switch-
ing possibilitiesare changedthrough the BUS.
Driving 75Ωloadneeds an externaltransistor.
It is possible to have the same input connected to
severaloutputs.
The starting configuration upon power on (power
supply : 0 to 10V) is undetermined.
In this case, 6 words of 16 bits are necessary to
determine one configuration.In other case, 1 word
of 16bits is necessary to determineone configura-
tion.
GENERALDESCRIPTION
TEA6415C

I2C-buscontrolledsingleandmultistandard
alignment-free IF-PLL demodulators TDA9885; TDA9886
1 FEATURES
•5 V supply voltage
•Gain controlled wide-band Vision Intermediate
Frequency (VIF) amplifier, AC-coupled
•Multistandard true synchronous demodulation with
active carrier regeneration: very linear demodulation,
good intermodulation figures, reduced harmonics, and
excellent pulse response
•Gated phase detector for L and L-accent standard
•Fully integrated VIF Voltage Controlled Oscillator
(VCO), alignment-free, frequencies switchable for all
negative and positive modulated standards via I2C-bus
•Digital acquisition help, VIF frequencies of 33.4, 33.9,
38.0, 38.9, 45.75, and 58.75 MHz
•4 MHz reference frequency input: signal from
Phase-Locked Loop (PLL) tuning system or operating
as crystal oscillator
•VIF Automatic Gain Control (AGC) detector for gain
control, operating as peak sync detector for negative
modulated signals and as a peak white detector for
positive modulated signals
•External AGC setting via pin OP1
•Precise fully digital Automatic Frequency Control (AFC)
detector with 4-bit digital-to-analog converter, AFC bits
readable via I2C-bus
•TakeOver Point (TOP) adjustable via I2C-bus or
alternatively with potentiometer
•Fully integrated sound carrier trap for 4.5, 5.5, 6.0,
and 6.5 MHz, controlled by FM-PLL oscillator
•Sound IF (SIF) input for single reference Quasi Split
Sound (QSS) mode, PLL controlled
•SIF-AGC for gain controlled SIF amplifier, single
reference QSS mixer able to operate in high
performance single reference QSS mode and in
intercarrier mode, switchable via I2C-bus
•AM demodulator without extra reference circuit
•Alignment-free selective FM-PLL demodulator with high
linearity and low noise
•I2C-bus control for all functions
•I2C-bus transceiver with pin programmable Module
Address (MAD)
•Four I2C-bus addresses via MAD.
2 GENERAL DESCRIPTION
The TDA9885 is an alignment-free multistandard
(PAL and NTSC) vision and sound IF signal PLL
demodulator for negative modulation only and
FM processing.
The TDA9886 is an alignment-free multistandard
(PAL, SECAM and NTSC) vision and sound IF signal PLL
demodulator for positive and negative modulation,
including sound AM and FM processing.
3 APPLICATIONS
•TV, VTR, PC and STB applications.
4 ORDERING INFORMATION
TYPE NUMBER PACKAGE
NAME DESCRIPTION VERSION
TDA9885T/V3 SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
TDA9885TS/V3 SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1
TDA9885HN/V3 HVQFN32 plastic, heatsink very thin quad flat package; no leads; 32 terminals;
body 5 ×5×0.85 mm SOT617-1
TDA9886T/V3 SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
TDA9886TS/V3 SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1

I2C-buscontrolled single and multistandard
alignment-free IF-PLL demodulators TDA9885; TDA9886
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6 BLOCK DIAGRAM
handbook, full pagewidth
MHC108
DIGITAL VCO CONTROL AFC DETECTOR
RC VCO
VIF-PLL
VIF-AGC
TUNER AGC
SUPPLY
SIF AGC
AUDIO PROCESSING
AND SWITCHES
NARROW-BAND
FM-PLL DEMODULATOR
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
SOUND TRAPS
4.5 to 6.5 MHz
TAGC
CVAGC(pos)
CAGC(neg) CBL
VAGC
(1)
TOP 14 (15) VPLL
19 (21)9 (8) 16 15 (16) 21 (23)
4 (2)10 (9)
11 (10) 12 (11)18 (20)20 (22)
2 (31)
1 (30) (18) 17
(7) 8
(3) 5
(4) 6
external reference signal
or 4 MHz crystal
REF AFC
AUD
CVBS
audio output
video output: 2 V (p-p)
[1.1 V (p-p) without trap]
CAF
SIOMADSDASCL
MAD
VP
CAGC
(6, 12, 13, 14, 17,
19, 25, 28, 29, 32)
13
n.c.AGND
7 (5)
DGND
OUTPUT
PORTS
I
2
C-BUS TRANSCEIVER
22 (24)3 (1)
OP1 OP2 FMPLL
DEEM
AFD
sound intercarrier output
and MAD select FM-PLL
filter
VIF-PLL
filter
de-emphasis
network
VIF2
VIF1
24 (27)
23 (26)
SIF2
SIF1
TDA9885
TDA9886
Fig.1 Block diagram.
(1) Not connected for TDA9885.
Pin numbers for TDA9885HN in parenthesis.

TEA6420
BUS-CONTROLLED AUDIO MATRIX
6420-01.EPS / 6420-02.EPS
PINCONNECTIONS
SHRINK24
(Plastic Package)
ORDER CODE : TEA6420
.5 STEREOINPUTS
.4 STEREOOUPUTS
.GAIN CONTROL 0/2/4/6dB/MUTEFOR EACH
OUTPUT
.CASCADABLE (2 differentaddresses)
.SERIALBUS CONTROLLED
.VERY LOWNOISE
.VERY LOWDISTORSION
DESCRIPTION
The TEA6420 switches 5 stereo audio inputs on
4 stereooutputs.
All the switching possibilities are changed through
the I2C bus.
SO28
(Plastic Micropackage)
ORDER CODE : TEA6420D
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
24
23
22
21
11
12
GND
CAPACITANCE
L1
L2
L3
L4
L5
LOUT1
ROUT1
LOUT2
ROUT2
SDA
SCL
ADDR
R1
R2
R3
R4
R5
ROUT4
LOUT4
ROUT3
LOUT3
VS
SHRINK24
GND
CAPACITANCE
L1
L2
L3
L4
L5
LOUT1
ROUT1
LOUT2
ROUT2
SDA
SCL
ADDR
R1
R2
R3
R4
R5
ROUT4
LOUT4
ROUT3
LOUT3
VS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
24
23
22
21
11
12
25
13
14
28
27
26
NC
NC
NC
NC
SO28

SUPPLY BUS DECODER
RIGHT
OUTP UTS
LEFT
OUTP UTS
SDA
SCL
ADDR
RIGHT INPUTS
GAIN = 0/2/4/6dB
GAIN = 0/2/4/6dB
VS
C
GND
LEFT INPUTS
T
E
A
6
4
2
0
6420-03.EPS
BLOCK DIAGRAM
ABSOLUTE MAXIMUMRATINGS
Symbol Parameter Value Unit
VCC Supply Voltage 10.2 V
Toper Operating Ambient Temperature 0, + 70 oC
Tstg Storage Temperature - 20, + 150 oC
6420-01.TBL
THERMAL DATA
Symbol Parameter Value Unit
Rth(j-a) Junction Ambient Thermal Resistance SHRINK24
SO28 75 75 oC/W
6420-02.TBL
ELECTRICAL CHARACTERISTICS
TA=25
o
C, VS= 10V,RL=10kΩ,R
G= 600Ω, f = 1kHz (unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
SUPPLY
VSSupply Voltage 8 9 10.2 V
ISSupply Current 5 8 mA
SVR Ripple Rejection VIN = 500mVRMS, BW = 20 - 20kHz 70 80 dB
MATRIX
VIN Input DC Level 4.5 5 5.5 V
RIInput Resistance 30 50 100 kΩ
CSChannel Separation VIN =2V
RMS Gain = 0dB
f = 1kHz Gain = 6dB 80 70 90 82 dB dB
6420-03.TBL
TEA6420

PW1231
Product Specification
General
The PW1231 is a high-quality, digital video signal
processor that incorporates Pixelworks’ patented
deinterlacing, scaling, and video enhancement
algorithms. The PW1231 accepts industry-standard video
formats and resolutions, and converts the input into any
desired output format.The video algorithms are highly
efficient, providing excellent quality video.
The PW1231 Video SignalProcessor combines many
functions into a single device, including memory
controller, auto-configuration, and others. This high level
of integration enables simple, flexible, cost-effective
solutions featuring fewer required components. Features
• Built-In Memory Controller
• Motion-Adaptive Deinterlace Processor
• Intelligent Edge Deinterlacing
• Digital Color/Luminance Transient Improvement (DCTI/DLTI)
• Interlaced Video Input Options, including NTSC and PAL
• Independent horizontal and vertical scaling
• Copy Protection
• Two-Wire Serial Interface
Applications:
For use with Digital Displays
• Flat-Panel (LCD, DLP) TVs
• Rear Projection TVs
• Plasma Displays
• LCD Multimedia Monitors
• Multimedia Projectors
NOTE: “L” denotes lead (Pb) free
Device Application Package
PW1231
PW1231-L Up to XGA 160-pin PQF
PW1231
Crystal
PW1231
System Block Diagram SDRAM
Video
Decoder
Video Dig it al
Output

Figure 1-1 Internal Block Diagram
Programming Unit
Input Unit
Video
Input
Moti o n
Detect and
Noise
Reduction
Tw o -Wi r e
Interface
Primary
Video Port
Secondary
Video Port
Memory Unit
Prim ary
Pictur e
Film-Mode
Detection (3:2 & 2:2)
I-Channel
Previous
Video
Dis play Un it
Video
Enhancements
Up
Scale r
Deinterlacer
Dis p lay
Timing
Digital
Output
Data
YU V
Digital
Output Ti m i n g
Color Space
Converter (CSC)
Blue
Screen
VSync /
HSync
Ti m i n g
RGB
PW1231
Internal Block Diagram
ITU-R BT
656
ITU-R BT
601