Beko Plasma TV Service manual

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Beko Plasma TV Service manual | Manualzz
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
3.
4.
5.
6.
exposed metallic part on the receiver and an earth,
such as a water pipe.
Use an AC voltmeter with high impedance to
measure the potential across the resistor.
Check each exposed metallic part and check the
voltage at the each point.
Reverse the AC plug at the outlet and repeat each of
the above measurements.
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
Water pipe
(earth)
METALLIC PARTS
2 K Ohm
L6B TECHNICAL SPECIFICATION
Receiving System
PAL B/G+I+D/K SECAM L/L'
Comb Filter
Adaptive 4H\2H
LTI, CTI Filters
+
DVI 1.0 Compliant
DVI Receiver
Resolution
2 Pixel \ Clk Support
Gamma Correction
+
OSD
Graphics Based 8-bit\pixel
Level (1.5, 2.5, Teleweb)
Teletext 1.5
Type (Fast\Top\Simple)
Simple, Fast, Top
Page Memory
WSS
800p
+
VPS\PDC
Picture Formats
(4:3, 16:9, 14:9, Panorama, LetterBox,
Subtitle)
+
8 to 10-bit LUT
PIP\PAP\POP\PAT
Teletext
+
VGA to SXGA
+
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
+
Timer
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
+
2x5W for 22"W, 23"W
2x10W for 26"W
2x10W for 30"W
Audio Output Power
RMS in Max at 10% THD)
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
PANEL SPECIFICATION
Sizes
22"
23"
26"
27"
30"
Manufacturer
Samsung
Samsung
LG- Samsung
Philips Hannstar
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)
LGChimei
AUO
32"
Chimei
LG-Philips
AUO
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
BACK SIDE APPEARANCES
CONTROL
BOARD
SPEAKERS
POWER
SWITCH
220VAC INPUT
LED/IR BOARD
MAIN
CHASSIS
POWER SUPPLY
BOARD
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
TO PANEL
MAIN CHASSIS
JP452
JP451
CN1
JP453
POWER
SUPPLY
MODULE
S150
SPEAKER
S2
TO
PANEL
S550
CN3
CN2
S350
S50
JP450
MAIN POWER
SWITCH
MODULE
TO HEADPHONE JACK
IR RECEIVER/LED
MODULE
KEY BOARD
MODULE
220V AC
INPUT
Video-Main
AV4 Video-In
Video In/Out
SCART 1 2 3
SC1-SC2 RGB
AV Out Audio
AV4
Audio-In
Audio-Switch
TDA6420
Audio
In-Out
Flash Memory
AM29VL160
Video-PIP
Scart RGB
Audio-In/Out
I2C Communication
De-Interlacer
Scaler
OSD
Micro-Cont.
Gamma Corr.
48 Bit RGB VS/HS
Dual İnterface for
FPD
AD9887
RGB HS/VS-In
SVHS Socket
Speaker
TO THE
PANEL
Stand by
LED’s
Reset
Mute
B/L Enable
Digital Dim
EEPROM
24LC21
Headphone
Amp.
TDA1308
PC DVI Audio -In
Progressive
or Intrelaced
24 Bit Dual
RGB ,HS,VS
DE,PCLK
IR In
Audio Amplifier
TA2024
Headphone Jack
PW181
IMAGE
PROCESSOR
16 Bit
YUV
RGB Switch
PI5V30
AUDIO PROCESSOR
MSP3410D
EEPROM
24C64
24 Bit RGB
Video Switch
TDA6415C
Pin 8 Switch
PCF8591
PW1231
De-Interlacer
LVDS Transmitter
DS090C385
PIP-Video
AV-Out Video
QSS-PIP
IF IC TDA9886T
16 Bit
YUV
Multi Standard
Video Decoder
SAA7118MP
Tuner-PIP
SDRAM
MT48LC16M
SVHS Y/C
Tuner-Main
QSS-Main
IF IC TDA9886T
Main-Video
RF In
Multi Standard
Video Decoder
SAA7118MP
L6B BLOCK DIAGRAM
D-SUB 15 socket
EEPROM
24LC21
DVI Input
DVI Socket
L6B POWER SUPPLY BLOCK DIAGRAM (MAIN CHASSIS)
J450
U451
FDS9933A
12V
(5V)
F450
U454
LM2576
+5V_STBY
+2,5V_STBY
U458
NCP1117
DC_IN
GND
F451
VOLTAGE
DOUBLER
S450
12V
'33V
U452
FDS9933N
GND
12V_AMP
PNL_EN
U450
NCP117
+1,5V_STBY
+5V
U457
NCP1117
STAND_BY
U453
FDS9933N
+3,3V_STBY
+12V
+3,3V
U455
LM2576
+12V_INVERTER
U456
LM317
+8V
PANEL_POWER
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).
L6 CHASSIS SERVICE MODE ITEMS
display menu
ITEM
panel
power on time
back light time
scart prescale
nicam prescale
fm/am prescale
agc adjust
red brightness
red contrast
green brightness
green contrast
blue brightness
blue contrast
TYPICAL VALUES/OPTIONS
1280x768
03:39:45
03:39:45
25
45
24
16
128
128
128
128
128
128
calibre menu
ITEM
video format
color space
test pattern
color components
solid field level
initial ats
factory reset
dpms
osd time out
TYPICAL VALUES/OPTIONS
auto
RGB
none
all
33
on
press <ok> to reset
on
60 sec
version
ITEM
Software
TYPICAL VALUES/OPTIONS
SL630T_CH1_T13 L6B 1.22 Chi30
GUI
Project; L6B Toshiba
Generated Date:
October 01,2004 at 22.42
TEA6415C
BUS-CONTROLLED VIDEO MATRIX SWITCH
■
■
■
■
■
■
■
■
■
20MHz BANDWIDTH
CASCADABLE WITH ANOTHER TEA6415C
(INTERNAL ADDRESS 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 ANY INPUT AND OUTPUT
-55dB CROSSTALK AT 5MHz
FULLY ESD PROTECTED
DIP20
(Plastic Package)
ORDER CODE : TEA6415C
DESCRIPTION
The main function of the TEA6415C is to switch 8
video input sources on the 6 outputs.
Each output can be switched to only one of the
inputs whereas but any same input may be connected to several outputs.
All the switching possibilities are controlled through
the I2C bus.
SO20
(Plastic Micropackage)
ORDER CODE : TEA6415CD
INPUT
1
20
INPUT
DATA
2
19
GROUND
INPUT
3
18
OUTPUT
CLOCK
4
17
OUTPUT
INPUT
5
16
OUTPUT
INPUT
6
15
OUTPUT
PROG
7
14
OUTPUT
INPUT
8
13
OUTPUT
VCC
9
12
GROUND
10
11
INPUT
INPUT
6415C-01.EPS
PIN CONNECTIONS
TEA6415C
BLOCK DIAGRAM
P ERI
TV1
P ERI
TV2
TTX
18
17
16
LUMA PIP
CHROMA
POWER
MAC
DEC.
GND
1
CVBS
(P ERI P LUG1)
3
CVBS
(AM TUNER)
5
MAC S IGNAL
(AMTUNER)
6
CVBS
(P ERI P LUG2)
8
CVBS
(FM TUNER)
10
MAC S IGNAL
(FM TUNER)
11
SYNCHRO
(TTX/BTX)
20
14
13
12
T
E
A
6
4
1
5
C
BUS
DECODER
2
7
4
9
19
DATA
P ROG
CLOCK
VCC
GND
GENERAL DESCRIPTION
The main functionof the IC is to switch 8 video input
sources on 6 outputs.
Each output can be switched on only one of each
input. On each input an alignment of the lowest
level of the signal is made (bottom of synch. top for
CVBS or black level for RGB signals).
Each nominal gain between any input and output
is 6.5dB. For D2MAC or Chroma signal the alignment is switched off by forcing, with an external
resistor bridge, 5 VDC on the input. Each input can
be used as a normal input or as a MAC or Chroma
input (with external resistor bridge). All the switching possibilities are changed through the BUS.
Driving 75Ω load needs an external transistor.
It is possible to have the same input connected to
several outputs.
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 16 bits is necessary to determine one configuration.
6415C-02.EPS
CVBS
(MAC/DEC)
15
I2C-bus controlled single and multistandard
alignment-free IF-PLL demodulators
1
TDA9885; TDA9886
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
• 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.
• TakeOver Point (TOP) adjustable via I2C-bus or
alternatively with potentiometer
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.
• Fully integrated sound carrier trap for 4.5, 5.5, 6.0,
and 6.5 MHz, controlled by FM-PLL oscillator
3
• Sound IF (SIF) input for single reference Quasi Split
Sound (QSS) mode, PLL controlled
4
APPLICATIONS
• TV, VTR, PC and STB applications.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
TDA9885T/V3
SO24
TDA9885TS/V3
SSOP24
TDA9885HN/V3
HVQFN32
TDA9886T/V3
TDA9886TS/V3
SO24
SSOP24
DESCRIPTION
plastic small outline package; 24 leads; body width 7.5 mm
VERSION
SOT137-1
plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
plastic, heatsink very thin quad flat package; no leads; 32 terminals;
body 5 × 5 × 0.85 mm
SOT617-1
plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
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TOP
TAGC
VAGC (1)
VPLL
REF
AFC
14 (15)
16
19 (21)
15 (16)
21 (23)
CBL
VIF-AGC
AFC DETECTOR
DIGITAL VCO CONTROL
RC VCO
(18) 17
SOUND TRAPS
4.5 to 6.5 MHz
VIF-PLL
video output: 2 V (p-p)
[1.1 V (p-p) without trap]
TDA9885
TDA9886
SIF2
24 (27)
SIF1
23 (26)
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
CVBS
AUDIO PROCESSING
AND SWITCHES
(7) 8
AUD
(3) 5
DEEM
de-emphasis
network
MAD
(4) 6
SIF AGC
SUPPLY
OUTPUT
PORTS
audio output
NARROW-BAND
FM-PLL DEMODULATOR
I 2C-BUS TRANSCEIVER
I2C-bus controlled single and multistandard
alignment-free IF-PLL demodulators
1 (30)
BLOCK DIAGRAM
VIF1
external reference signal
or 4 MHz crystal
9 (8)
TUNER AGC
2 (31)
6
VIF-PLL
filter
CAGC(neg)
VIF2
handbook, full pagewidth
CVAGC(pos)
AFD
CAF
CAGC
18 (20)
VP
AGND
n.c.
3 (1)
22 (24) 11 (10)
10 (9)
7 (5)
12 (11)
4 (2)
OP1
OP2
SDA
DGND
SIOMAD
FMPLL
SCL
sound intercarrier output
and MAD select
(1) Not connected for TDA9885.
Pin numbers for TDA9885HN in parenthesis.
Fig.1 Block diagram.
MHC108
FM-PLL
filter
TDA9885; TDA9886
20 (22)
(6, 12, 13, 14, 17,
19, 25, 28, 29, 32)
13
TEA6420
BUS-CONTROLLED AUDIO MATRIX
..
.
..
..
5 STEREO INPUTS
4 STEREO OUPUTS
GAIN CONTROL 0/2/4/6dB/MUTE FOR EACH
OUTPUT
CASCADABLE (2 different addresses)
SERIAL BUS CONTROLLED
VERY LOW NOISE
VERY LOW DISTORSION
SHRINK24
(Plastic Package)
ORDER CODE : TEA6420
DESCRIPTION
The TEA6420 switches 5 stereo audio inputs on
4 stereo outputs.
All the switching possibilities are changed through
the I2C bus.
SO28
(Plastic Micropackage)
ORDER CODE : TEA6420D
PIN CONNECTIONS
SO28
GND
1
24
SDA
GND
1
28
SDA
CAPACITANCE
2
23
SCL
CAPACITANCE
2
27
SCL
26
ADDR
VS
3
22
ADDR
VS
3
L1
4
21
R1
L1
4
25
R1
L2
5
20
R2
L2
5
24
R2
6
23
R3
L3
6
19
R3
L3
L4
7
18
R4
NC
7
22
NC
L5
8
17
R5
NC
8
21
NC
L4
9
20
R4
LOUT1
9
16
ROUT4
ROUT1
10
15
LOUT4
L5
10
19
R5
11
18
ROUT4
LOUT2
11
14
ROUT3
LOUT1
ROUT2
12
13
LOUT3
ROUT1
12
17
LOUT4
LOUT2
13
16
ROUT3
ROUT2
14
15
LOUT3
6420-01.EPS / 6420-02.EPS
SHRINK24
TEA6420
BLOCK DIAGRAM
RIGHT INPUTS
T
E
A
6
4
2
0
GAIN = 0/2/4/6dB
RIGHT
OUTP UTS
SDA
VS
C
BUS DECODER
SUPPLY
S CL
ADDR
GND
LEF T
OUTP UTS
6420-03.EPS
GAIN = 0/2/4/6dB
LEF T INPUTS
ABSOLUTE MAXIMUM RATINGS
Parameter
VCC
Supply Voltage
Toper
Operating Ambient Temperature
Tstg
Storage Temperature
Value
Unit
10.2
V
0, + 70
o
- 20, + 150
o
C
C
6420-01.TBL
Symbol
Symbol
R th(j-a)
Parameter
Value
Junction Ambient Thermal Resistance
SHRINK24
SO28
Unit
o
75
75
C/W
6420-02.TBL
THERMAL DATA
ELECTRICAL CHARACTERISTICS
TA = 25oC, VS = 10V, RL = 10kΩ, RG = 600Ω, f = 1kHz (unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
8
9
10.2
V
5
8
mA
SUPPLY
VS
Supply Voltage
IS
Supply Current
SVR
Ripple Rejection
VIN = 500mVRMS, BW = 20 - 20kHz
70
80
dB
VIN
Input DC Level
4.5
5
5.5
V
RI
Input Resistance
30
50
100
kΩ
CS
Channel Separation
80
70
90
82
VIN = 2VRMS
f = 1kHz
Gain = 0dB
Gain = 6dB
dB
dB
6420-03.TBL
MATRIX
PW1231
Product Specification
General
Crystal
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.
Video
Video
Decoder
PW1231
System Block Diagram
PW1231
Digital
Output
SDRAM
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
Device
Application
Package
PW1231
PW1231-L
Up to XGA
160-pin PQF
NOTE: “L” denotes lead (Pb) free
Tw o-Wire
Interface
ITU-R BT
656
Secondary
Video Port
ITU-R BT
601
Primary
Video Port
I-Channel
Previous
Video
Prim ary
Picture
Film-Mode
Detection
(3:2 & 2:2)
Memory Unit
Up
Scaler
VSync /
HSync
Timing
Color Space
Converter (CSC)
Video
Enhancem ents
Blue
Screen
RGB
Deinterlacer
Display Unit
Figure 1-1 Internal Block Diagram
Program m ing Unit
PW1231
Internal Block Diagram
Video
Input
Motion
Detect and
Noise
Reduction
Input Unit
YUV
Display
Tim ing
Digital
Output
Data
Digital
Output
Timing
Pin Diagram
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
2W_A2
2W_A1
XTALO
XTALI
VR7
VR6
VR5
VR4
VR3
VR2
VR1
VR0
PVHS
PVVS
CREF
PVCLK
VSS
VDD
VG7
VG6
VG5
VG4
VG3
VG2
VG1
VG0
SVCLK
SVVS
SVHS
PVSS
PVDD
VB7
VB6
VB5
VB4
VB3
VB2
VB1
VB0
NC
Pinout Information
PW1231
(Top View)
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
PVSS
DR3
DR4
DR5
DR6
DR7
VDD
VSS
PVSS
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
PVDD
NC
NC
MA4
MA3
MA5
MA2
MA6
MA1
MA7
MA0
PVDD
PVSS
MPDVSS
MPAVDD
SCL
SDA
TDO
TCK
TDI
TMS
TRSTN
RESETn
VDD
VSS
TEST
DCLK
DVS
DHS
DB0
DB1
DB2
DB3
DB4
DB5
DB6
PVDD
PVSS
DB7
DG0
DG1
DG2
DG3
DG4
DG5
DG6
DG7
DR0
DR1
DR2
PVDD
Figure 2-1 PW1231 Pin Layout
PVDD
PVSS
DPAVSS
DPAVDD
DPDVSS
DPDVDD
CGMS
DEN
TESTCLK
VSS
VDD
MD0
MD15
MD1
MD14
MD2
MD13
MD3
MD12
MD4
MD11
MD5
MD10
MD6
MD9
MD7
MD8
PVSS
PVDD
MCLK
MWE
MCAS
MRAS
MCLKFB
MA12
MA11
MA13
MA9
MA10
MA8
PW181
Product Specification
General Description
The PW181 ImageProcessor is a highly integrated
“system-on-a-chip” that interfaces computer graphics and
video inputs in virtually any format to a fixed-frequency flat
panel display.
Crystal
Video
Input
Computer and video images from NTSC/PAL to WUXGA
at virtually any refresh rate can be resized to fit on a fixedfrequency target display device with any resolution up to
WUXGA. Video data from 4:3 aspect ratio NTSC or PAL
and 16:9 aspect ratio HDTV or SDTV is supported. Multiregion, nonlinear scaling allows these inputs to be resized
optimally for the native resolution of the display.
Advanced scaling techniques are supported, such as
format conversion using multiple programmable regions.
Three independent image scalers coupled with frame
locking circuitry and dual programmable color lookup
tables create sharp images in multiple windows, without
user intervention.
Embedded SDRAM frame buffers and memory controllers
perform frame rate conversion and enhanced video
processing completely on-chip. A separate memory is
dedicated to storage of on-screen display images and
CPU general purpose use.
Advanced video processing techniques are supported
using the internal frame buffer, including motion adaptive,
temporal deinterlacing with film mode detection. When
used in combination with the new third-generation scaler,
this advanced video processing technology delivers the
highest quality video for advanced displays.
Both input ports support integrated DVI 1.0 content
protection using standard DVI receivers.
A new advanced OSD Generator with more colors and
larger sizes supports more demanding OSD applications,
such as on-screen programming guides. When coupled
with the new, faster, integrated microprocessor, this OSD
Generator supports advanced OSD animation techniques.
Programmable features include the user interface, custom
start-up screen, all automatic imaging features, and
special screen effects.
Com puter
Video
Decoder
PW181
Display
ADC/
TMDS
PW181
System Block Diagram
ROM
Features
•
•
•
•
•
•
•
•
•
•
•
Third-generation, two-dimensional filtering techniques
Third-generation, advanced scaling techniques
Second-generation Automatic Image Optimization
Frame rate conversion
Video processing
On-Screen Display (OSD)
On-chip microprocessor
JTAG debugger and boundary scan
Picture-in-picture (PIP)
Multi-region, non-linear scaling
Hardware 2-wire serial bus support
Applications
• Multimedia Displays
• Plasma Displays
• Digital Television
Device
Application
PW181-10V
Up to XGA Displays
PW181-20V
Up to UXGA Displays
PW181-30V
Up to WUXGA Display
Package
352 PBGA
RAMWE,
RAMOE,
ROMWE,
ROMOE
PortC PortB PortA
(7:0) (7:0) (7:0)
PortD(7:0)
PortE(7:0)
PortF(7:0)
GPIO
PWM
2-Wire
Serial
A(19:0),
D(15:0),
BHEN,
CS(1:0),
RD, WR
CPUTDO
Processor ROM/
RAM Interface
CPUTMS,
CPUTCK,
CPUTDI
16-bit
Turbo µP
NMI
Watchdog and
Timers
EXTINT
RxD, TxD
IRRCVR (1:0)
UART
IR
Decoders
Interrupt
Controller
Microprocessor Bus
VCLK, VPEN,
VVS, VHS,
Video Port
Sync Decoder
Auto Image
Optimizer
Color Space
Converter HDCP
Horizontal
Image
Scaler
Processor
Memory
Interface
CRISP
Image
Scaler
SDRAM
Frame
Buffer
GRGB
(47:0)
GCOAST,
GREF,
GBLKSPL,
GHSFOUT
Graphics Port
Sync Decoder
Auto Image
Optimizer
Color Space
Converter HDCP
Spatial
Noise
Reduction
Memory In
Bus
GCLK, GFBK,
GPEN, GVS,
GHS, GSOG
OSD/CPU
Memory
Controller
OSD
Memory
Bus
Display Port
Image
Scaler
Field
Video
Deinterlace
OSD and CPU
SDRAM
Memory Out Bus
VRGB
(23:0)
Frame
Buffer
Memory
Controller
OSD
Control &
Blend
Color Matrix,
Gamma Correction
CLTs, Color Space
Expander
Display
Timing
Generator
MCLK DCLK UCLK
Master Reset
Dual PLL
Clock
Generator
Reset
MCLKEXT, DCLKEXT,
XI*
XO*
Figure 1-1 Internal Block Diagram
PW181 Internal Block
Diagram
*For internal clock generator
RGBE
(23:0)
RGBO
(23:0)
DVS,
DHS,
DEN,
DCLK
L6B RECOMMEDED SPARE PARTS
POSITION
AV/TV
CN250
CN601
F450
F451
IR1
J19
J53
J56
J57
J832
J926
MENU
P250
SAW825
SAW826
SAW827
PART NUMBER
PART DESCRIPTION
056T27-CH1
056T30-CH1
056W26-LP2
L38172
L57172
UR3110
US1110
US1172
Y23172
Y22172
Y51120
ZG4187F
JX1187
ZG4301
ZJ9172
ZJ9205F
ZJ9206F
ZJ9251F
ZJ9805
ZJ9806
ZR1107-AS
ZR1172
ZR1204F
ZR1205F
ZR1208F
ZR1212F
ZR1251F
ZR1255
ZR1258
ZR1805
ZR1806
ZR1910
010844
031383
ZJ9512-AS
303407
303447
054290
054290
452521-01
031508
031477
031478
031423
031479
031795
010844
031358
056708
056708
056010
LCD CHIMEI V270W1-L04 (LCD TV)
LCD CHI-MEI V296W1-L14 (LCD TV) 30")
LCD LG-PHILIPS LC260W01-A5K6 (LCD TV)
CU ASSY 30'' L6B (ZR1192-21)
CU ASSY 27'' L6B (ZR1192-21)
L6B CHASIS 27"TOS MS/NX/3/SK/PIP/PEN/DVI
L6B CHASIS TOS 30" M/NX/3/SK/PIP/PEN/DVI
CU ASSY 30" L6BL38 TOSHIBA (ZR1191-20)
CU ASSY 26L6L43 L6B VER.(ZP9191-20)
CU ASSY 26L6BL44 (ZG5192-20)
L6 CHASIS DAUGHTER BOARD
RC L6B TOSHIBA GRI/SHINE SI.P.ED CT-870
R/C L6B REMOTE CONTROL JAECS SIL.GRUNDIG
TERMINAL BATT.BOX(+-) R/C TOSHIBA
POWER SWITCH ASSY 27/30'' L6B(ZJ9192-20)
BACK COVER 30'' L38 LCD TV SILVER L6B
SCART BACK COVER 30L38 LCD TV SILVER
FRONT COVER G.BL/BUR.SIL P.ED 30L38 TOS.
CUSHION LEFT 30" LCD TV
CUSHION RIGHT 30" LCD TV
SPEAKER 10W 4R PALSTIC CASE KAB MOUNTED
CU ASSY 27" L6BL57 TOSHIBA (ZR1191-20)
LENS IR/LED 30''L38 LCD TV
BACK COVER 27'' L57 LCD TV SILVER L6B
KNOB POWER 27"L57 LCD TV SILVER
KNOB PROGRAM/VOL. 27LCD TOSHIBA SILVER
FRONT COVER G.BL./BUR.SIL P.ED 27L57 TOS
BACK COVER DARK GRAY P.ED 27L6BL57 LCD
POWER KNOB BURNISH SILVER PAINTED 27"L57
CUSHION LEFT 30" LCD TV
CUSHION RIGHT 27" LCD TV
ADAPTOR SPS 180W 24/5 12/5 PFC 2PIN(LISH
TACT SWITCH 2 LEG (MTSB)
CON.DVI 24+5POL JRX1-DV124+5
CABLE PANEL.INTERFACE 30"L6B CHI 30.LU
LED ROT LTL 4221N P6 GREEN
LED 3MM RED-BLUE LIGITEK LSRFSBK2092
FUSE 5.0A 250V ROUND
FUSE 5.0A 250V ROUND
IR RECEIVER TSOP34838 SS1A
KONN. RF IEC TO RCA
KONN. CINCH .... WHITE HOR.12,5MM 30L6
KONN. CINCH ..... RED HOR.12,5MM 30L6
HEADPHONE JACK YKB21-5103
KONN. CINCH ... YELLOW HOR.12,5MM 30L6
KONN.S-VHS
TACT SWITCH 2 LEG (MTSB)
CONN. VGA B10B
SAW FILTER OFW K3958M
SAW FILTER OFW K3958M
SAW FILTER OFW K9656M
SAW828
SW1
TU825
TU826
U1
U150
U151
U2
U250
U251
U3
U350
U351
U400
U401
U402
U450
U452
U454
U455
U456
U457
U458
U50
U51
U52
U650
U750
U825
U826
U827
U925
X941
Y300
Y50
Y550
Y650
Y825
Y826
Y925
056010
010861
Y51136-PH1
Y11136
453124
453195
453350
453262
453261
453261
453494
453921
452997
453233
453263
453349
453095
401372
453294
453294
453428
453124
453124
452706
453352
453351
453346
452863
451569
451569
453271
453124
8R9185
056753
056952
056119
056121
056013
056013
056753
SAW FILTER OFW K9656M
ON/OFF SWITCH BK98
TUNER PH UV1316T/SIGH-3 SPL ASIMTRK YAT
TUNER HOR.PHILLIPS UV1316/A I H-4
IC-CHIP NCP1117DT33RK TO-252 PACKAGE
IC PI5V330W SOIC(W)
IC-CHIP PCF8591 /SO16
IC-CHIP AD9887KS-100- DUAL IN.FACE TRAY
IC-CHIP 24LC21A-I/SN-CMOS18K/2.5V SE.T&R
IC-CHIP 24LC21A-I/SN-CMOS18K/2.5V SE.T&R
IC-CHIP TRIPATH TA2024 STEREO CLAS-D T&R
IC-CHIP DS90C385A MTD56
IC LM358DR2 / S08
IC-CHIP AM29LV160DB-90EC (TRAY)TSOP48
IC-CHIP AT24C64N-10SI-2. - SO8 TAPE&REEL
IC-CHIP TLC7733 /SO8
IC-CHIP NCP1117DTARK (DPAK)(T&R) TO252
TRN FDS9933A
IC-CHIP LM2576D2TR4-005V 3A TO263 STPT&R
IC-CHIP LM2576D2TR4-005V 3A TO263 STPT&R
IC-CHIP LM317MDT VAR.VOLT.REG. TO-252
IC-CHIP NCP1117DT33RK TO-252 PACKAGE
IC-CHIP NCP1117DT33RK TO-252 PACKAGE
IC TDA1308T/N1 SO-G8 (T&R)
IC-CHIP MSP3410-MQFP64
IC TEA6420 /SO28
IC-CHIP PW1231A
IC MT48LC4M16A2-7E SDRAM 54PIN TSOP
IC-CHIP TDA9886T/V3 118(SO24) T&R
IC-CHIP TDA9886T/V3 118(SO24) T&R
IC-CHIP TEA6415CDT -VIDEO-MAT-SW.T&R
IC-CHIP NCP1117DT33RK TO-252 PACKAGE
HP JACK 17"LCD TV
CRYSTALL 24.576MHZ 20PF 30PPM
CRYSTAL 18.432MHZ +-30PPM
CRYSTAL 14.31818MHz CL=18PF30/30PPMHC49U
CRYSTAL 10 MHz / HC49U 20PF 30PPM
CRYSTAL 4 MHZ HC49-U
CRYSTAL 4 MHZ HC49-U
CRYSTALL 24.576MHZ 20PF 30PPM
FREQUENCY TABLE (MHz)
Channel
Number
BG
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
48.25
55.25
62.25
175.25
182.25
189.25
196.25
203.25
210.25
217.25
224.25
53.75
62.25
82.25
175.25
183.25
192.25
201.25
210.25
471.25
479.25
487.25
495.25
503.25
511.25
519.25
527.25
535.25
543.25
551.25
559.25
567.25
575.25
583.25
591.25
599.25
607.25
615.25
623.25
631.25
639.25
647.25
655.25
I
DK
L/L'
49.75
59.25
77.25
85.25
93.25
175.25
183.25
191.25
199.25
207.25
215.25
223.25
45.75
53.75
61.75
69.75
95.25
49.75
59.25
77.25
85.25
93.25
175.25
183.25
191.25
199.25
207.25
215.25
223.25
47.75
55.75
60.50
63.75
176.00
184.00
192.00
200.00
208.00
216.00
189.25
182.25
196.25
210.25
471.25
479.25
487.25
495.25
503.25
511.25
519.25
527.25
535.25
543.25
551.25
559.25
567.25
575.25
583.25
591.25
599.25
607.25
615.25
623.25
631.25
639.25
647.25
655.25
471.25
479.25
487.25
495.25
503.25
511.25
519.25
527.25
535.25
543.25
551.25
559.25
567.25
575.25
583.25
591.25
599.25
607.25
615.25
623.25
631.25
639.25
647.25
655.25
471.25
479.25
487.25
495.25
503.25
511.25
519.25
527.25
535.25
543.25
551.25
559.25
567.25
575.25
583.25
591.25
599.25
607.25
615.25
623.25
631.25
639.25
647.25
655.25
Channel
Number
BG
I
DK
L/L'
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
S
S
S
S
S
S
S
S
S
S
S
S
S
S
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
1
2
3
4
5
6
7
8
9
10
11
12
13
14
663.25
671.25
679.25
687.25
695.25
703.25
711.25
719.25
727.25
735.25
743.25
751.25
759.25
767.25
775.25
783.25
791.25
799.25
807.25
815.25
823.25
831.25
839.25
847.25
855.25
663.25
671.25
679.25
687.25
695.25
703.25
711.25
719.25
727.25
735.25
743.25
751.25
759.25
767.25
775.25
783.25
791.25
799.25
807.25
815.25
823.25
831.25
839.25
847.25
855.25
863,25
871,25
879,25
887,25
663.25
671.25
679.25
687.25
695.25
703.25
711.25
719.25
727.25
735.25
743.25
751.25
759.25
767.25
775.25
783.25
791.25
799.25
807.25
815.25
823.25
831.25
839.25
847.25
855.25
663.25
671.25
679.25
687.25
695.25
703.25
711.25
719.25
727.25
735.25
743.25
751.25
759.25
767.25
775.25
783.25
791.25
799.25
807.25
815.25
823.25
831.25
839.25
847.25
855.25
863.25
103.25
111.25
119.25
127.25
135.25
143.25
151.25
159.25
167.25
231.25
239.25
247.25
255.25
263.25
103.25
111.25
119.25
127.25
135.25
143.25
151.25
159.25
167.25
231.25
239.25
247.25
255.25
263.25
69.25
76.25
83.25
90.25
97.25
59.25
93.25
105.25
112.25
119.25
126.25
133.25
140.25
147.25
154.25
161.25
168.25
231.25
238.25
245.25
252.25
160.00
172.00
220.00
232.00
244.00
256.00
268.00
280.00
116.75
128.75
140.75
152.75
164.75
176.75
188.75
200.75
212.75
224.75
236.75
248.75
260.75
272.75
Channel
Number
BG
I
DK
L/L'
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
259.25
266.25
273.25
280.25
287.25
294.25
303.25
311.25
319.25
327.25
335.25
343.25
351.25
359.25
367.25
375.25
383.25
391.25
399.25
407.25
415.25
423.25
431.25
439.25
447.25
455.25
463.25
271.25
279.25
287.25
295.25
303.25
271.25
279.25
287.25
295.25
303.25
284.75
296.75
55.75
60.50
63.75
311.25
319.25
327.25
335.25
343.25
351.25
359.25
367.25
375.25
383.25
391.25
399.25
407.25
415.25
423.25
431.25
439.25
447.25
455.25
463.25
311.25
319.25
327.25
335.25
343.25
351.25
359.25
367.25
375.25
383.25
391.25
399.25
407.25
415.25
423.25
431.25
439.25
447.25
455.25
463.25
303.25
311.25
319.25
327.25
335.25
343.25
351.25
359.25
367.25
375.25
383.25
391.25
399.25
407.25
415.25
423.25
431.25
439.25
447.25
455.25
463.25

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Questions and Answers

How can I access the service menu?
Press '9', '3', '0', '1' on the remote controller while the menu is on the screen.
What options are available in the display menu?
The display menu offers seven options: Panel, Power on time, Backlight on time, Scart prescale, Nicam prescale, FM/AM prescale, and Agc(Automatic Gain Control) adjust.
What is the function of the 'Panel' option?
The 'Panel' option provides information about the current panel resolution.
What is the 'Power on time' option used for?
The 'Power on time' option displays the last update time of the running software.
What does the 'Backlight on time' option do?
The 'Backlight on time' option is reserved and has no function.
How does the 'Scart prescale' option work?
The 'Scart prescale' option adjusts the prescale values for the input sounds entering the scart input of the MSP (Micronas Sound Processor). You can modify the output sound level for all sources except the tuners by changing this value.

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