curso tv plasma parte2
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1. Block Diagram of VSC main
2. Block Diagram of STB main3. IC SPEC
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MT-40PA10 VSC Board Block Diagram
MT-40PA10 VSC Board Block Diagram
Chip for flat panel display application
VGA XGA scale up/down
Display Processor & Scan Rate Converter
(Format Converter)
Interlace to Progressive
15KHz 31KHz(2H X 1V)
P101
V/R/L
DS102
IC203
VPC3230
Decoder
80Pin
IC203
VPC3230
Decoder
80Pin
3
Y,Cb,Cr
CVBS
(A)
1
IC204
SDA9410
Deinterlace &
D/A
100Pin
IC204
SDA9410
Deinterlace &
D/A
100Pin
8 LU0-7
8 CHR0-7
IC303
CXA2101AQVideo&Chroma
80Pin
IC303
CXA2101AQVideo&Chroma
80Pin
5
PC-R/G/B/HS/VS (A)
5
DTV-Y/Pb/Pr (A)
3 TV-Y/U/ V/HS/VS(A)
5
IC304
THS8083
100Pin
IC304
THS8083
100Pin
3 CXA-R/G/B(A )
IC401
MX88L2843X2M
Scan converter
208Pin
IC401
MX88L2843X2M
Scan converter
208Pin
IC001
M37270
EEPROM
Micro-Com
IC001
M37270
EEPROM
Micro-Com
IC403
2MSDRAM
IC402
2M SDRAM
(R/G/B)(D)
CAX-
HS/VS
2
16
D0-16
A0-10 D16-31
11 16
OSD_R/G/B/YS
4
IC501
74F541
IC50274F541
IC50374F541
Buffer
OSD_HS/VS
2
HS/VS_OUT
2
8 DOR0-7
8 DOG0-7
8 DOB0-7
STB-POWER
VSC DET/POWER
HDSTB_DET
STB_SCL/SDA
ANA_STB_DET
7 PVS/PHS_OUT
2
PAR0-7
8
PAG0-7
8
8
PD501
(41Pin)
PDP Modul
(D)
3X8
D-su
b
25
D-sub
15
(A)
P601
L/R
IC
IC203,204,303,304,40
7
IC002
24C16
IC002
24C16 IC407
SC786102DW
IC407
SC786102DW
HS/VS
SDA2
SCL2
DS101
STB-R/G/B/HS/VS(A)
IC50474F541
PAB0-7
Comb Filter Video Process
CVBS(Composite Video Baseband
Signal) Input to Y/C(Y,U,V) Output
Multi-Component Processor
(Baseband Video Signal Processor)
STB, PC, DTV, TV signals Input to Analog R/G/B Output
Triple 8Bit, 80MSPS, 3.3V Video&Graphic Digitizer
with Digital PLL
Analog R/G/B Input to 3X8 Digital R/G/B OutputP102
DVD
IC602CXA2022S
(Tone Control)
IC602CXA2022S
(Tone Control) 2 2L/R
IC604LA7222
(Audio S/W)
IC604LA7222
(Audio S/W)STB/PC/DTV1
AV/DVD/DTV2
2
L/R
IC603LA4282
Audio Amp.
(12Wx2)
IC603LA4282
Audio Amp.
(12Wx2)
P007A(Spk. Jack)
L/R
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RT- BA10 STB Main Block Diagram
RT- BA10 STB Main Block Diagram
TUNER
(RCA JACK)
AUDIO
COMMON USE
L/R(TV)
L/R
IF IC
TDA4474
DC5V
IF IC
TDA4474
DC5V
SVHS
AV3
PC- IN
PC Audio(Stereo)
SCL-A
SDA-A
7input/3output
ideband video Amp(20MHz, -3dB)
Y/C mix circuit
A/V switch featuring I2C BUS
R/G/B/HS/VS(A)w
TUNER
CXA2069Q
A/V SW
DC 12V
CXA2069Q
A/V SW
DC 12V
V, L/R
CVB
S
V, L/R
* SCART2 : HALF
* RCA Jack
Common Use
*PCB LayOut)
AV2
MNT
OUT
V, L/R
TV, L/R
(SCART1: FULL)
TV
OUT
AV1
Y / C
MSP3411G
Sound
Processor
DC 8V
MSP3411G
Sound
Processor
DC 8V
2nd
SIF
L / R
OUT
CXA2101AQ
RGB
Processor
DC9V
CXA2101AQ
RGB
Processor
DC9V
R/G/B
HS/VS(A)
DS 701
(25Pin
Cable)
SCL-A/D
SDA-A/D
9
10
Multi-Com onent Processo
Analog R/G/B Output
Input select switch for high
definition display
Internal broadband RGB s/w
2001.4.27
PHIL KIM
SCL-ASDA-A
I2CP801
7PIN
IC 001M37272
u-COM
IC 001
M37272
u-COM
KEY-1
KIN
KOUT
SCL-A
SDA-A
PC- OUT
I2C
RF
(RCA JACK)
L/R
CVBS1/Y
CTPU3052S
TELETEXT
DC5V
TPU3052S
TELETEXT
DC5V
VPC3230DMAIN
[ADDR: 47]
Video
Processor
DC 6V
VPC3230DMAIN
[ADDR: 47]
Video
Processor
DC 6V
C
DVD Y/Cr/Cb
(A)
VPC3230D
SUB
[ADDR: 44]
Video
Processor
DC6V
VPC3230D
SUB
[ADDR: 44]Video
Processor
DC6VFB
SDA9410
1H/1V=> 2H/ 1V
DW / PIP / MPIP
DC 3.3V
SDA9410
1H/1V=> 2H/ 1V
DW / PIP / MPIP
DC 3.3V
p
DTV Y, Pb, Pr (A)
H V
CVBS2/Y
R/G/B
HS/VS(A)
R/G/B
HS/VS(A)
BA7657F
RGB
S/W
DC 5V
BA7657F
RGB
S/W
DC 5VI2CSCL-A
SDA-AI2C
SCL-D
SDA-DI2C
SCL-A
SDA-AI2C
CVBS.3RGB
EXT_RGB
81V04160
FIFOMemory
81V04160
FIFOMemory
WE
RE
DVD/DTV
Y/ C/HS/VS (D)
I2CSCL-D
SDA-DSCL-D
SDA-DI2C
Comb filter video processor
TV Signal to Digital Y/Cr/Cb
Multi-standard color decoder
A/D converter
Format converter
Interlace to Progressive
7input/3output
wideband video Amp(20MHz, -3dB)
Y/C mix circuit
A/V switch featuring I2C BUS
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VPC 3230 Comb Filter Video ProcessorVPC 3230 Comb Filter Video Processor
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Description
The VPC3230xD/324xD is a high quality, single-chip video front-end,
which is targeted for 4:3 and 16:9, 50/60 and 100/120Hz TV sets. It can
be combined with other members of the DIGIT3000 IC family (such as
DDP 33x0A/B, TPU 3040) and/or it can be used with 3rd-party products.
Features
Four CVBS, one S-VHS input, one CVBS output
Two RGB/YCrCb component inputs, one Fast Blank(FB) input
High-performance adaptive 4H comb filter Y/C separator with adjustable
vertical peaking
Multi-standard color decoder PAL/NTSC/SECAM including all
substandards
One 20.25MHz crystal, few external components
6V supply voltage
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SDA9410 Display Processor & Scan Rate ConverterSDA9410 Display Processor & Scan Rate Converter
Description
The SDA 9410 is a new component of
Siemens MEGAVISION IC set, which
enables the system to reduce large
area and line flickering of interlaced
TV standards.
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74F541
3-state Buffer
74F5413-state BufferSDA9410
Display Processor & Scan Rate Converter
Features
Digital interlaced Y/C input,
progressive analog Y/U/V output
High performance scan rate converter
4:2:2 luminance and chrominance
parallel (2x8 wires)
Scan rate conversion
- Motion compensated 100/120 Hz interlaced
scan conversion
- Motion compensated 50/60 Hz progressive
scan conversion
D/A converters
- 9 bit amplitude resolution for Y, -(R-Y), -
(B-Y) output
3.3V + 5% supply voltage
Description
The 74F541 are octal buffers that
are ideal for driving bus lines or
buffer memory address registers.
The outputs are capable of sinking64mA and sourcing up to 15mA,
producing very good capacitive
drive characteristics. The devices
feature input and outputs on
opposite sides of the package to
facilitate printed circuit board
layout.
Features
High impedance NPN base inputs
for reduced loading (20uA in High
and Low states)
Octal bus interface
3-state buffer outputs sink 64mA
15mA source current
THS8083
THS8083
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THS8083 Video&Graphics Digitizer with Digital PLLTHS8083 Video&Graphics Digitizer with Digital PLL
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Description
THS8083 is a complete solution for the digitalizing of video & graphic
signals in RGB or YUV/YCbCr color spaces. The device supports pixel
rates up to 80 MHz to 95 MHz, depending on the speedgrade of the
device
Features
Three digitalizing channels, each with independently controllable Clamp,PGA and ADC
ADC: 8 bit 80MSPS
Support for 4:4:2 and 4:2:2 (ITU.BT-601 style output modes to reduce
board traces and video ASICS
Fully integrates digital PLL(including loop filter) for pixel clock
generation
3.3V supply voltage
CXA2101AQ
CXA2101AQ
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CXA2101AQ Multi-Component Processor(Base Band Video Signal Processor IC)
CXA2101AQ Multi-Component Processor(Base Band Video Signal Processor IC)
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Description
The CXA2101AQ is a bipolar IC which integrates the followingfunctions on a single chip; base band signal processing, RGB signal
processing , and video switching for 4 systems (including HV sync
signal processing) using Y/Cb/Cr inputs.
It was developed for multiscan TVs, and enables high-end TV systems
to be configured.
Features
On-chip video switching for 4 systems
Y/Cb/Cr input for one system, external Y/Cb/Cr input for 1 system
Analog RGB input for 2 systems
Normal, PAL-FF, HD-TV supported
9V supply voltage
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MX88L284Scan ConverterMX88L284Scan Converter
Description
The MX88L284 is a highly integration chip for Flat Panel Display application. WithMacronixs Smartscaling 2 filter, it provides high quality scaled video image and
format conversion.
General features
Converts NTSC/PAL and PC video signal into flat panel display device timing andresolution.
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Built-in OSD generator with 64 ROM fonts, and 64 programmable RAM fonts.
Support configurable SDRAM/SGRAM(x0 x1 and x2) for different resolution to minimize the system cost.
Input
PC Video up to 1024x768 @ 85Hz operation mode
Support YCrCb422,RGB888 mode (interlaced and Non-interlaced)
Support input H/V sync. Polarity and odd/even field detection
Support digital input capability
Support SDRAM/SGRAM x0x1 and x2 configuration
3.3V power supplier
Output
Support following resolution and frequency
Single (18/24) and Dual (36/48) bit RGB data output
Support OSD MUX capability for On-Screen-Display chip input
Built-in OSD generator
CPU Interface
Support direct 8 bit uP interface and serial bus (high-speed) interface
10825~8032.5~60Dot clock (MHz)
6050~7550~75Vertical frequency (Hz)
6420~7022~55Horizontal frequency
1280x10241024x768800x600 (SD)Resolution
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SDRAM-KM416S1020CSDRAM-KM416S1020C
DescriptionThe KM416S1021C is 16,777,216 bits synchronous high data rate
Dynamic RAM organized as 2 x 524,288 words by 16 bits, fabricated
with high performance CMOS technology. Synchronous design allows
precise cycle control with the use of system clock I/O transactions are
possible on every clock cycle. Range of operating frequencies,
programmable burst length and programmable latencies allow thesame device to be useful for a variety of high bandwidth, high
performance memory system applications.
Features
JEDEC standard 3.3V power supply
SSTL_3 (Class II) compatible with multiplexed address
Dual banks operation
MRS cycle with address key programs
- CAS latency (2 & 3)
- Burst length (1, 2, 4, 8 & Full page)- Burst type (Sequential & Interleave)
All inputs are sampled at the positive going edge of the system clock.
Burst read single-bit write operation
Auto & self refresh
64ms refresh period (4K cycle)
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CXA2022I2C Bus Sound Processor for TV
CXA2022I2C Bus Sound Processor for TV LA4282
2-channel 10w AF Power Amplifierfor Use in Home Stereo, TV Applications
LA4282
2-channel 10w AF Power Amplifierfor Use in Home Stereo, TV Applications
Description
The CXA2022S is a bipolar IC designed
as an IC bus control sound processor for
TV.This IC has simulate stereo, surround,tone control, balance, volume, muting,
AGC and other functions.
Description
The LA4282 is an IC which seals a high-
output power amplifier for TVs and monitors
in a compact package.
FeaturesAllows control I2c bus
Employs a special surround system to
prevent vocal missing in the surround
mode
Adopts an AGC circuit to absorb the
difference in sound level between input
sources and improves S/N ratio of hearing
characteristics
14V supply voltage
FeaturesHigh-power 2-channel AF power amplifier
Low pop noise at the time if power supply
ON/OFF
Good ripple rejection (58 db typ)External muting available
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CXA2069S2-Compatible 7-Input 3-Output Audio/Video Switch TDA4474
Multistandard Video-IF
and Quasi Parallel Sound Processing
Description
The TDA4474 is an integrated bipolar
circuit for full multistandard
video/sound IF(VIF/SIF) signal
processing in TV/VCR andmultimedia applications. The circuit
processes all TV video IF signals with
negative modulation (e.g. B/G
standard), positive modulation(e.g. L
standard) and the AM, FM/NICAM
sound IF signals.
Description
The CXA2069Q is a 7-Input 3-Output Audio/Video Switch
featuring I2C bus compatibility for TVs. This IC has input
pins that are compatible with S2 protocol. Features
Four IF inputs (2xVIFin and 2xSIFin)
Very linear video demodulation, good
pulse response and excellent inter
modulation figures
VIF-AGC for negative modulated
signals(peak sync. detection) and for
positive modulation(peak white/black
level detector)
Alignment-free quasi parallel
sound(QPS) mixer for FM/NICAMsound IF signals
5V supply voltage; low power
consumption
Features
7 inputs 3 outputs
4 inputs that are compatible with S2 protocol
Wide band video amplifier (20 MHz,-3 dB)
Y/C MIX circuit
Serial control with I2C bus
High impedance maintained by I2C bus lines (SDA, SCL)
even when power id OFF
12V Supply voltage
MSP 3411G Multistandard Sound Processor with Virtual Dolby Surround
MSP 3411G Multistandard Sound Processor with Virtual Dolby Surround
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MSP 3411GMultistandard Sound Processor with Virtual Dolby SurroundMSP 3411GMultistandard Sound Processor with Virtual Dolby Surround
Description
The MSP 34x1G family of single-chip Multistandard Sound Processors covers the sound processing of all analog TV-Standards
worldwide, as well as the NICAM digital sound standards. The full TV sound processing, starting with analog sound IF signal-in,down to processed analog AF-out, is performed on a single chip.
The MSP4x1G has all functions of the MSP3401G with the addition of a virtual surround sound feature
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MSP 3411G
Multistandard Sound
Processor with Virtual DolbySurround
Features
Four Stereo SCART (line) inputs,
one Mono input; two Stereo
SCART output
Complete SCART in/out
switching matrix
Standard Selection with single
IC transmission
Two selectable sound IF (SIF)
inputs
Automatic Sound Selection
(mono/stereo/bilingual), new
registers MODUS, STATUS
3D-panorama virtualizer
(approved by Dolby Laboratories)
with noise generator
AVC: Automatic Volume
Correction
Demodulation of the FM-Radio
multiplex signal
8V power supply
BA7657F
Input selector switch for high definition displays
Description
The BA7657F is for high
definition displays, and have
internal switches for switching
between broadband RGB signals
and HD/VD signals, as well as an
internal synchronization separator.
These ICS simplify the designingof input units for deluxe displays
Features
Internal broadband RGB switch(frequency characteristics : 250MHz,
-3dB)
Internal HD/VD switch
Internal synchronization separator for
synchronizing signals superimposedonto G signals.
5V power supply
Connection Diagram of MT 40PA10
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Connection Diagram of MT-40PA10
6p
X-B/D
POWER
KEY
5V G 15V G N/C VA
CON304 6P
Angle - Type
Wafer X-B/D
4p 9p
8P
41P
4P
SPEAKER B/D
P8087P
P809
12P
P811
6P
P8104P
P801
8P
P806
6P
P802 4P P803 9P
P805
6P
P804
8P
P807
6P
POWER
CN801
2P
P004A
7P
41P
P002A
6P
P003A
7P
P005A
12PP006A
4P
P007A
4P
VSCY-B/D
6p
8P
Z-B/D
Line FilterLine Filter
VA N/C G 15V G 5V
CON303 6P
7P CONTROL B/D
Pi D t il f MT 40PA10
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Pin Detail of MT-40PA10
KET-IN
R-LED
G-LED
GND
STBY
GND
TX
41P
PD501
SCL-E
SDA-E
SCL-N
SDA-N
FS
GND
P002A
6PIN
AC-DET
RL-ON
STBY
GND
VAVS-ON
5V-MNTN/C
5V
5V
5V
GND
GND
GND12V
12V
GND
GND
N/C
N/C30V30V
GND
GND
GND
R-SPK
GND
L-SPK
P004A
7PIN
P003A
7PIN
P005A
12PIN
P007A
4PIN
P006A
4PIN
GND
GND
VSC
VSET
UP
5V
5V
5V
5V
GND
GND
GND
GND
VA
N/C
GND
15V
GND
5V
32V
32V
GND
GND
5VS
5VS
5VS
GND
GND
GND12V
12V
GND
GND
N/C
N/C
ACD
RLY
5VGND
VsON
5VD
N/C
VA
N/C
GND
15V
GND
5V
VS
VS
N/C
N/C
N/C
GND
5V
GND
5V
VA
N/C
GND
15V
GND5V
VA
N/C
GND
15V
GND
5V
5V
GND
5V
GND
N/C
VS
N/C
GND
CN801 2P
P801
8P
P806
6P
P811
6P
P810
4P
P809
12P
P808
7P
P801
8P
P801
8P
VSC
CNTL
P804
8P
P805
6P
P807
6P
VSETUP
CNTL
VS CNTL
PFC
ADJ
VA
CNTL
5V CNTL
32V CNTL
VSC
CNTL
VSC POWER
: A Symbol of starting of the PIN
Connection Diagram of RT BA10
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Connection Diagram of RT-BA10
P301B
12PIN
P001
12PIN
STB D-SUB B/D
P818B
10PIN
P870
8PINP302B
12PIN
P303B
10PIN
P304B
7PIN
P305B
3PIN
P801M
P301A 12PIN P302A 12PINP303B
10PIN
P304B
7PIN
P305B
3PIN
STB - MAIN
12PIN
STB-CONTROL B/D
STB-
POWER
P801S
P810A
10PIN
P870A
8PIN
Lightning
Wire
Pi D t il f RT BA10
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Pin Detail of RT-BA10
12PINSTB-CONTROL B/D
S-DET
GND
S-CIN
GND
S-YIN
GND
VIN
3-V
GND
VIN
3-L
GND
VIN
3-R
KIN1
KIN2
KIN3KOUT1
KOUT2
KOUT3
GND
R-LED
G-LED
GND
5VGND
P301B
12PIN
P302B
12PIN
P303B
10PIN
STB - MAIN
P870B
8PIN
P818B
10PIN
P001
12PIN
POW
GND
ST5V
GND6V
GND
13V
GND
30V
GND
S-WOOFER
GND
OUT-L
OUT-R
GND
MUTE
GND
DVD-Y
GND
DVD-Pb
GND
DVD-Pr
GND
DVD-L
GND
DVD-R
GND
GND
GND
PC-B
GND
PC-G
GND
PC-R
GND
PC-HS
GND
PC-VS
GND
P
C-L
G
ND
P
C-R
G
ND
G
ND5V
GND
KOUT
2
GND
P305B
3PIN
P801M P304B7PIN
P810A
10PIN
P870A
8PIN
STB-
POWER
P801M
POW
GND
ST5V
GND6V
GND
13V
GND
30V
GND
S-WOOFER
GND
OUT-L
OUT-R
GND
MUTE
GND
STB D-SUB B/D
S-DET
GND
S-CIN
GND
S-YIN
GND
VIN
3-V
GND
VIN
3-L
GND
VIN
3-R
DVD-Y
GND
DVD-Pb
GND
DVD-Pr
GND
DVD-L
GND
DVD-R
GND
GND
GND
PC-B
GND
PC-G
GND
PC-R
GND
PC-HS
GND
PC-VS
GND
PC-L
GND
PC-R
GND
GND
5V
GND
KOUT
2
GND
P301A12PIN
P302A12PIN
P303B10PIN
P304B7PIN
P305B3PIN
: A Symbol of starting
of the PIN number
Trouble Shooting Guide
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Trouble Shooting Guide
X - Board COF Connector separation
Lift up the right and left of X-BOARD CONNECTOR.
When you handle COF CONNECTOR, dont pressure. First release LOCK and separate.
If COF CONNECTOR is damaged you should replace MODULE ASSY. so be aware of this !!
COF Connector
Lift up X-BOARD CONNECTOR and separate
COP CONNECTOR by pulling up.
warningwarning
When you exchange X-Board, first you should separate
COF Connector. Be careful not to damage it. COF
Connector is attached to Module. Since COF Connector is
torn, Module Assy must be replaced a new one. Be
careful!
When you exchange X-Board, first you should separate
COF Connector. Be careful not to damage it. COF
Connector is attached to Module. Since COF Connector is
torn, Module Assy must be replaced a new one. Be
careful!
X Board Connector separation
X - Board Connector separation
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X - Board Connector separationX Board Connector separation
Lift up each edge of left/right. Lifted condition
Be careful to handle LOCK or it can be hurt.
When LOCK is hurt, replace a new X-BOARD.
Its easy to separate it by releasing ConnectorLock .
Do not pressure. Be careful to handle LOCK or it
can be hurt. When LOCK is hurt, replace a new X-
BOARD
warningwarning
Y - Board COF Connector separation
Y - Board COF Connector separation
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p
Pull the white LOCK as shown in arrow
Pull the white LOCK as shown in arrow.
Separate COF CONNECTOR by pulling in the left.
warnignwarnign
Be careful to handle LOCK part and COF Connector
when LOCK part is damaged, you should replace a new Y-Board. In case of COF Connector,
Module Assy
Z B d COF C t ti
Z Board COF Connector separation
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Z - Board COF Connector separationZ - Board COF Connector separation
Separate the fixed Screw ofZ-Board..
Pull out Lock as shown in
arrow.warningwarning
Pull COF Connector asshown in arrow.
Its easy to separate COF
on condition that Z-Board
Screw is separated. In case
Z-Board is assembled,
its really hard to separate.
Condition in Lock part is pulled
COF Connector
be careful not to tear COF Connector. If COF
Connector is torn, replace a new Module Assy.
each Connector separation
each Connector separation
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each Connector separationp
Push LOCK and pull out
PUSHPUSH PUSH
PUSH PUSH PULL
C t ll B d VSC B d C t
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Controller Board VSC Board ConnectorController Board VSC Board Connector
Gas injection (sealing up) condition
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Gas injection (sealing up) conditionGas injection (sealing up) condition
Be sealed up after gas injectionBe sealed up after gas injection
Be careful to handle the sealed-up part after gas injection.
If it is broken the gas escapes. So replace a module.
warningwarning
Power is on and off 2 ~ 3 minutes later ( Protect )
Power is on and off 2 ~ 3 minutes later ( Protect )
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Power is on and off 2 3 minutes later ( Protect )( )
Power is On and off 2~3 minutes.
(Protect)
Power is On and off 2~3 minutes.
(Protect)
P301 Connector Open Check.P301 Connector Open Check. X - Board Top Right Change.X - Board Top Right Change.OK
P302 Connector Open CheckP302 Connector Open Check X - Board Top Left Change.X - Board Top Left Change.OK
P303 Connector Open CheckP303 Connector Open Check X - Board Bottom Right Change.X - Board Bottom Right Change.OK
P304 Connector Open CheckP304 Connector Open Check
P102 Connector Open CheckP102 Connector Open Check
X - Board Bottom Left Change.X - Board Bottom Left Change.OK
Z - Board Change.Z - Board Change.OK
P3, P2 Connector Open CheckP3, P2 Connector Open CheckOK
Y - Board Change. Y - Board Change.
P005, P003 Connector Open CheckP005, P003 Connector Open Check
P006 Connector Open CheckP006 Connector Open Check
VSC- Board Change.VSC- Board Change.
VSC - Board Change.
Sound Output IC Short Check
VSC - Board Change.
Sound Output IC Short Check
Power Board ChangePower Board Change
OK
OKPROTECT operation
when the electrical load
voltage is Short.
When each voltagedoesnt work (in general)
PROTECT operation
when the electrical load
voltage is Short.
When each voltagedoesnt work (in general)
As soon as the Power is On, its off in 2 ~ 3 minutes. ( Protect )
As soon as the Power is On, its off in 2 ~ 3 minutes. ( Protect )
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As soon as the Power is On, it s off in 2 3 minutes. ( Protect ), ( )
L813 dry joint
Inferior phase : as soon
as the power, its off in 2 -
3minutes.
(PROTECT circuitoperation) inferior cause :
no VS voltage L813 Coil
dry joint.
CheckCheck Open the Connector connecting to each Board to check the power is off.if each Board is same, check the Power Board and voltage.
ADD BAR inspection and repair
ADD BAR inspection and repair
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p p
HEATRUN : WHITE
Press the ADJ KEY and check the position of add bar by
changing WHITE or RED or BLUE or GREEN
Top Right Top Left
Bottom RightBottomLeft
PD-40X2 uses 4 board such as left,right, top and bottom.
Divide the screen in 5 and once you see ADD BAR check COF
CONNECTOR between MODULE and X-BOARD.
If there is no defect in COF CONNECTOR replace X-BOARD.
But the problem still remains and check the connector betweenX-BOARD and CONTROL BOARD. And if you cant find defect,
check CONTROL.
PD-40X2
Top
Bottom
PD-60X3 uses 2 X-BOARDs such as top and bottom so whenthe problems occur in top or bottom, check ADD BAR first and
then CONNECTOR, X-BOARD, CONNECTOR and CONTROL
BOARD
PD-40X3, PD-60X3
DND C/S the analysis of inferior goods
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1.June 13 inferior receipt
PD 40X 2 Filed inferior good
Set No : 912KC 00036
Module No : P239102815-215
customer : in kyeongi province
contents: tape droop
management: tape rework
13 inferior receipt
PDP 40 NVDN 4
Set No : 104KC 00176
Module No : 503007PRODUCT RECORD : DND sends it to C/S after reworking
POWER B/D .
contents : B color Address Open 1line causes : dented COF
: no inferior phase in DND process, assumed that inferior
happens during the analysis in DND ,due to Power B/D
COF dented
inferior receipt
PDP 40NVDN 4 Filed
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Set No : 104KC 00206
Module No : 32184
customer : a surgeon in Kyeongi province
contents : Address R color inferiorcause : DATA output inferior by X-L-TOP IC14,16 pin dry joint
( normal curve by tearing off IC Pin)
management : X-L-TOP replacement
IC14
Dry joint
Curve inferiornormal curve
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CheckCheck
The blue spreads on the screen (electric
discharge inferior) and the powers off in 2 -
3 minutes this phase repeats whenever the
power is on.
Inferior phase causes management
Under 14V 15V Line,electric discharge inferior
occurs and the powers off
because protect circuit is
off.
-. The power board SMPS
not winded enough has
the electric discharge
inferior
because of the short of
the voltage capacity.
-. X-Board TR Short,
over-electrical load
Protect circuit .
The power board PCB
replacement of SMPSTRANS replacement
(B,D Type)
X-Board replacement
Measure SMPS 2 15V Line by Digital Multi Meter and check the voltage changes.If it is less than 14V, the screen ins broken with the blue. As soon as the power is ON and its off
showing this kind of screen. Remove all connectors and check the board not off.
. X-Board inferior and the power board SMPS replacement.
inferior X-Board
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CheckCheck
The whole screen is broken with the blue
(electric discharge inferior) whenever the
power is on this phase occurs.
OSD is normal.
Inferior phase cause management
under 14V 15V Line,electric discharge
inferior occurs.
-. The power boardSMPS is not winded
enough.
because the voltage
capacity is short ,electric
discharge inferior
occurs.
The power boardPCB replacement
or SMPS TRANS
replacement
( B,D Type)
Measure SMPS 2 15V Line by Digital Multi Meter and check the voltage changes.
If it is less than 14V, the screen ins broken with the blue.
(electric discharge inferior )
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CheckCheck
The top left part of screen is broken
(X-BOARD TOP RIGHT)
Inferior phase causes management
Presume X-BOARDinferior.
cause : X-BOARD TOP
RIGHT 5V doesnt turn
X-BOARD TOPRIGHT 5V adoesnt
turn
X-BOARD TOP RIGHT 5V CHECK
SMPS ---- X-BOARD TOP RIGHT 5V CHECK
I f i h
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CheckCheck
The pink in the top left part of the screen.
(X-BOARD TOP RIGHT)
Inferior phase causes management
Presume X-BOARDinferior.
cause : when X-BOARD
TOP RIGHT VA(70V)
doesnt turn, this phase
occurs.
X-BOARD TOPRIGHTVA(70V)
doesnt turn.
VA(70V) LINE OPEN.
X-BOARD TOP RIGHT VA (70V) CHECK
SMPS ---- X-BOARD TOP RIGHT VA (70V) CHECK
I f i h C t
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CheckCheck
the 3/5 top left in the screen isnt out
(X-BOARD TOP RIGHT)
Inferior phase Causes management
X-BOARD TOP RIGHT
12V doesnt turn
Board VA(70V) doesnt
turn.
X-BOARD TOP
RIGHT
12V LINE OPEN
X-Board Top Right
VA(70V)Line Open
X-BOARD TOP RIGHT 12V CHECK ( in 0V,this phase.)
X-Board Top Right VA(70V) CHECK. (in 0V this phase)
SMPS --- X-BOARD TOP RIGHT supplied 12V ,VA(70V)
CHECK.
Inferior phase causes management
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CheckCheck
The 3/5 top right of the screen isnt out.
(X-BOARD TOP LEFT)
Inferior phase causes management
X-BOARD TOP LEFT
12V doesnt turn.
X-BOARD TOP LEFT
VA(70V) doesnt turn.
X-BOARD TOP LEFT
12V LINE OPEN.
X-BOARD TOP LEFT
VA(70V) LINE OPEN
X-BOARD TOP LEFT 12V CHECK ( in 0V)
X-BOARD TOP LEFT VA(70V) CHECK(IN 0V)
SMPS --- X-BOARD TOP LEFT , 12V,VA(70V) CHECK.