Vizio VP50HDTV10A Service Manual Download

Page: 99 / 102

CONFIDENTIAL – DO NOT COPY

Page 10-

File No. SG-0219

Main board System Block Diagram

SV2_HUD

U28 MAX4550

AUDIO SW

4/2 I/O

A4/B4/C4_HUD

U32 P4450G
AUDIO
PROCESS

U37 CS3443

HDMI2 LR DAC

J10

NC7SB3157

U18 BUS SW

U34 PT2308

AUDIO DRIVER

U45 74HCT14

Inverting Schmitt Trgger

MSTR0_SCL/MSTR0_SDA

KEY PAD

CN5

Digital B

Input

SV4_CTZ

A4/B4/C4_CTZ

UC_SCL/UC_SDA

CH1_R/L

U20 4052

I/O SW

2 Wire

Controller

U27 MAX4550

AUDIO SW

4/2 I/O

Digital A

Input

FL8125_HUD

U36 CS3443

HDMI1 LR DAC

SV4_HUD

HDMI2_AUDIO_L/R

A4/B4/C4

AIR_RAW_HS_CS/AIR_RAW_VS

AudioAV2_R/L

CH2_R/L

IPCLK1/BHS/BVS/BDE

W14

OCM External

SRAM

JTAG Boundary

Scan

HDMI1_AUDIO_L/R

AIR_RAW_HS_CS/AIR_RAW_VS

AudioAV1_R/L

IPCLK0/AHS/AVS/AHREF_DE

W11

VS / HS

IPCLK1/BHS/BVS/BDE

FL8532_CTZ

ANLOG DDC

HDMI2 AUDIO

JTAG Boundary

Scan

AudioAV1_R/L

VGA_AUDIO_L/R

ARXD_HUD

Y2/C2

IPCLK0/AHS/AVS/AHREF_DE

U42 IDTQS3253

HDMI1 AUDIO SW

W12

R G B

CH3_R/L

2 Wire

Controller

U46 IDTQS3253

HDMI1 AUDIO SW

UART

VGA_SCL / VGA_SDA

Analog

input

COMP2_Audio_R/L

AudioAV1_R/L

COMP2_Audio_R/L

ATXD

W13

CH4_R/L

Serial ROM

Interface

VGA_AUDIO_L/R

U37 24LC02

EEPROM HDMI1

COMP1_Audio_R/L

U38

SST89C58

ATXD_HUD

HDMI1 AUDIO

W10

51_RXD/51_TXD

NTSC CVBS

COMP1_Audio_R/L

2 Wire

Controller

TUNER

A2/B2/C2_CTZ

U40 24LC128

EEPROM(8051)

ARXD

LVDS
Display
Interface

AUDIO L/R

OUT

AUDIO

TUNER SIF

U40 24LC02

EEPROM HDMI2

Frame Store

DDR Interface

HY5DU56822CT-D4

U16 DDR RAM HUD

BDATA[0:23]

2 Wire

Controller

LVDS
Display
Interface

XU1 A29LV320D

MEMERY_CTZ

Headphone

VEDIO

U10

MT5351

TUNER SIF

CN13

HY5DU56822CT-D4

U17 DDR RAM CTZ

U24 M61323FP

VEDIO SW

BDATA[0:23]

I2CCM

Lineout_R/L

UART

TDA8946AD

AUDIO_AMP

A2/B2/C2_HUD

VGA_SCL / VGA_SDA

MSTR2_SCL/MSTR2_SDA

U21 24LC02

EEPROM VGA

MT5112

W13

CN12

ADATA[0:23]

JTAG_BS_TCK/TDO/TMS/TDI/TRST

DTV

HLIN/HRIN

TV/DTV

B1_CTZ/C1_CTZ

A2/B2/C2

MSTR1_SCL/MSTR1_SDA

ATSC Audio L/R

FQD1236/F H-5

51_RXD/51_TXD

Y Pr Pb

Speaker L

Analog

input

JTAG_BS_TCK/TDO/TMS/TDI/TRST

U12 SST25VF040

FLASH 512K HUD

GPIO

ATSC Audio L/R

ARXD_HUD

B1_HUD/C1_HUD

A3/B3/C3_HUD

MSTR1_SCL/MSTR1_SDA

U22 M61323FP

VEDIO SW

Y1/C1

ATSC Y

Pr Pb

SCL-33V / SDA-33V

Speaker R

GPIO

NTSC CVBS(SV1_HUT)

CN16

ATXD_HUD

SV3_CTZ/A1_CTZ

A3/B3/C3_HUD

CVBS1

Y Pr Pb

BDATA[0:23]

IPCLK1/BHS/BVS/BDE

NTSC CVBS(SV1_CTZ)

ATXD

SV3_HUD/A1_HUD

A3/B3/C3_CTZ

ATSC Y Pr Pb

U42 Sil 9011

HDMI RS

U11 24LC32

EEPROM HUD

U26 MAX232A

U23 M61323FP

VEDIO SW

CVBS2

Display

ADATA[0:23]

ARXD

SV2_CTZ

A3/B3/C3_CTZ

U35 Sil 9011

HDMI RS

U25 F75373S

U33 PT2308

AUDIO DRIVER

MSTR2_SCL/MSTR2_SDA

CN17

Frame Store

DDR Interface

Summary of Contents for VP50HDTV10A

Page 1: ...Service Manual V Inc 320A Kalmus Drive Costa Mesa CA 92626 TEL 714 668 0588 FAX 714 668 9099 Top Confidential Model VIZIO VP50HDTV10A...

Page 2: ...1 4 Factory Preset Timings 4 1 5 Pin Assignment 5 1 6 Main Board I O Connections 6 1 7 Theory of Circuit Operation 7 1 8 Waveforms 8 1 9 Trouble Shooting 9 1 10 Block Diagram 10 1 11 Spare parts list...

Page 3: ...radio communications However there is no guarantee that the interference will not occur in a particular installation If this equipment does cause unacceptable interference to radio or television recep...

Page 4: ...definition digital interface HDMI y HDCP supportive y Multiple screen display picture on picture picture in picture y Selectable picture mode y 3 language On Screen Display y 2 S video and Composite v...

Page 5: ...V Brightness panel spec 1500 cd m2 Typical w glass filter Min 280 cd m2 Contrast ratio panel spec 15000 1 Typical dark room Color Coordinates typical White Panel spec x 0 310 0 02 y 0 310 0 02 White...

Page 6: ...PY Page 2 2 File No SG 0219 Composite Video signal H 15 734KHz V 60Hz NTSC Component signal YPbPr YCbCr H 15 734KHz V 60Hz NTSC 480i H 31KHz V 60Hz NTSC 480p H 45KHz V 60Hz NTSC 720p H 33KHz V 60Hz NT...

Page 7: ...ack x 2 AV1 RCA Jack CVBS x 3 S video 4 pin mini DIN x 1 HDMI2 19 pin HDMI x 1 Audio RCA Jack x 2 AV2 RCA Jack CVBS x 3 S video 4 pin mini DIN x 1 RGB PC D sub 15 pin x 1 Mini Jack x 1 Audio input DIG...

Page 8: ...0 40 b Relative humidity 20 80 RH c Altitude 0 6 560 ft Non operating a Temperature 20 60 b Relative humidity 10 90 RH c Altitude 0 9 840 ft 8 DIMENSIONS a Height 871 mm b Width 1241mm c Depth 310 mm...

Page 9: ...OSD Adjustment Main OSD Tree Mode Image Settings VIDEO Picture Mode Custom vivid Movie Game Sport VIDEO Brightness 0 100 VIDEO Contrast O 100 VIDEO Saturation 0 100 VIDEO Hue 50 50 VIDEO Sharpness 0...

Page 10: ...00 PC Auto Adjustment PC lmage Position PC Phase PC CIocks Line PC Color Temp PC Warm 5400K PC Standard 6500K PC Cool 9300K PC User PC Red 0 100 PC Green 0 100 PC Blue 0 100 Display Settings VIDEO Asp...

Page 11: ...P Input Audio Settings Bass 0 20 Treble 0 20 Balance 10 10 SRS TS XT On Off Auto Volume On Off Speakers On Off Audio Out Fixed Volume Variable Volume Parental Controls VIDEO Password VIDEO Settings VI...

Page 12: ...Blocked VIDEO TV PG Unblocked Blocked VIDEO TV 14 Unblocked Blocked VIDEO TV MA Unblocked Blocked VIDEO Unblocked VIDEO Movie Rating VIDEO Movie G Unblocked Blocked VIDEO Movie PG Unblocked Blocked VI...

Page 13: ...ocked VIDEO Movie X Unblocked Blocked VIDEO Unblocked VIDEO Block Unrated No Yes VIDEO Change Password VIDEO Please enter new password VIDEO Please re enter new password VIDEO Clear All No Yes Setup C...

Page 14: ...TIAL DO NOT COPY Page 3 6 File No SG 0219 Mode Language English French Spanish Factory Reset No Yes Image Cleaner Firmware Version TV TV Menu TV Auto Scan TV Set Channel Add Skip TV Cable Antenna DTV...

Page 15: ...Menu A DTV Tuner Setup a Time Zone 1 Hawall 2 Eastern Time 3 Indiana 4 Central Time 5 Mountain Time 6 Arizona 7 Pacific Time 8 Alaska b Cable Air Auto c Scan d Manual Scan Scan mode Add on Mode Range...

Page 16: ...nu 1 PCM 2 OFF 3 Dolby Digital B Closed Caption a Analog Closed Caption CC1 CC4 OFF b Digital Closed CAPTION Service1 Service6 OFF c Digital Closed Style 1 As Broadcaster 2 Custom 1 Font Size Large Sm...

Page 17: ...e 3 9 File No SG 0219 DTV Menu Yellow Magenta 3 Font Opacity Solid Translucent Transparent 4 Background Color Black White Green Blue Red Cyan Yellow Magenta 5 Background Opacity Solid Translucent Tran...

Page 18: ...enu White Green Blue Red Cyan Yellow Magenta 7 Window Opacity Solid Translucent Transparent Parental control C Password Channel Block HDMI and Component 720P 1080i inputs do not support Panoramic See...

Page 19: ...9 Indicates which inputs are available for PIP and POP modes 2 For AV1 and AV2 S Video has priority If a signal is connected to AV1 S Video by itself or signals are connected to AV1 S Video and AV1 V...

Page 20: ...xel Rate MHz Remark 1 640x480 60 31 5 59 94 N N 25 175 Windows 2 640x480 75 37 5 75 00 N N 31 500 Windows 3 800x600 60 37 9 60 317 P P 40 000 Windows 4 800x600 75 46 9 75 P P 49 500 Windows 5 800x600...

Page 21: ...tional interface cable 2 3 3 1 video input 3 1 Video input Mode No Resolution 1 480i 2 480p 3 720p 4 1080i 3 2 PC input Mode No Resolution Refresh Rate Hz Horizontal Frequency KHz Vertical Frequency H...

Page 22: ...ssignment 1 RF Connector 2 RGB Connector a Type Analog b Frequency H 30 80KHz V 60 85Hz c Signal level 0 7Vp p d Impedance 75 e Synchronization H V separate sync TTL H V composite sync Sync on Green T...

Page 23: ...nput 10 Ground 3 Blue video input 11 No connection 4 Ground 12 SDA 5 Ground 13 Horizontal sync Composite sync 6 Red video ground 14 Vertical sync 7 Green video ground 15 SCL 8 Blue video ground 3 HDMI...

Page 24: ...MDS Data0 8 TMDS Data0 Shield 9 TMDS Data0 10 TMDS Clock 11 TMDS Clock Shield 12 TMDS Clock 13 CEC 14 Reserved N C on device 15 SCL 16 SDA 17 EDID CEC Ground 18 5V Power 19 Hot Plug Detect 4 RCA type...

Page 25: ...mini DIN 6 Y Cb Pb Cr Pr Component video signal a Frequency H 15 734KHz V 60Hz NTSC 480i H 31KHz V 60Hz NTSC 480p H 45KHz V 60Hz NTSC 720p H 33KHz V 60Hz NTSC 1080i b Signal level Y 1Vp p Pb 0 350Vp p...

Page 26: ...9 SPDIF Digital Audio Out Optical a Peak emission wave length 630 690 m b Transmission Speed 13 2M pbs c Connector type Optical fiber transmitter 10 Earphone a Signal level 1Vrms max b Impedance 32 c...

Page 27: ...d CN1 DC POWER INPUT PIN Description 1 PDP_ 5Vsc 2 PDP_ 5Vsc 3 PDP_ 5Vsc 4 GND 5 GND 6 GND 7 PDP_ 12V 8 PDP_ 12V 9 GND 10 GND 11 PDP_ 12V_FAN 12 PDP_FGND CN2 DC POWER INPUT PIN Description 1 PDP_Audio...

Page 28: ...IN Description 1 LED2_KEYPAD 2 KEY_VCC 3 IR 4 ADC_IN2 5 NC 6 GND 7 3 3V_LBADC 8 ADC_IN1 9 LED1_KEYPAD_BUF 10 GND P1 GND P2 GND CN6 CONNECTION HDMI ATSC_UP PIN Description 1 5V 2 51_TXD 3 51_RXD 4 GND...

Page 29: ...SG 0219 CN12 FAN CONNECTION PIN Description 1 NC 2 FANIN1 3 12V_FAN 4 FGND CN13 FAN CONNECTION PIN Description 1 FANIN1 2 12V_FAN 3 FGND J7 CONNECTION SPEAKER R PIN Description 1 RL 2 RL 3 NC J8 CONNE...

Page 30: ...DS PIN Description PIN Description 1 GND 2 TXA3 3 TXA3 4 TXAC 5 TXAC 6 GND 7 TXA2 8 TXA2 9 TXA1 10 TXA1 11 TXA0 12 TXA0 13 GND 14 GND 15 5V_SW 16 5V_SW 17 5V_SW 18 GND 19 GND 20 NC 21 NC 22 NC 23 NC 2...

Page 31: ...11 ATSC_DA 12 SV1_CTZ SV1_HUD 13 GND 14 GND 15 ATSC_Y 16 N C 17 GND 18 GND 19 ATSC_Pb 20 SIF_Tuner1 21 GND 22 GND 23 ATSC_Pr 24 SIF_Tuner2 25 N C 26 N C 27 12V_SW 28 ATSC_Audio_L 29 12V_SW 30 ATSC_Aud...

Page 32: ...File No SG 0219 J9 CONNECTION PROGRAMUPDATA PIN Description Default 1 2 ARXD ON 2 3 ARXD_HUD OFF ON ADD JUMPER OFF NO JUMPER J10 CONNECTION PROGRAMUPDATA PIN Description Default 1 2 ATXD ON 2 3 ATXD_H...

Page 33: ...7 A01LRCK 8 READY 9 GND 10 GND 11 A01SDATA0 12 NTSC CVB1 13 GND 14 GND 15 MAIN YOUT 16 N C 17 GND 18 GND 19 MAIN PbOUT 20 NTSC SIF 21 GND 22 GND 23 MAIN_PrOUT 24 N C 25 HDMI SPDIF 26 SPDIF Ctrl 27 12...

Page 34: ...e Power Source MENU keys and LED 1 The power key controls video processor FLI8532 FLI8532 will receive a low signal to turn on or off system while press the power key 2 The other seven keys are on hig...

Page 35: ...s six clock inputs All additional clocks are internal clocks derived from one or more of these 1 Crystal Input Clock TCLK and XTAL This is the input pair to an internal crystal oscillator and correspo...

Page 36: ...ecoder blocks with connections to the input multiplexer that selects whether the data follows the Main Video Channel or PIP video channel The analog front end of FLI8532 provides the capability to cap...

Page 37: ...using 48bit double wide TTL output to the panel The following digital video formats are supported by FLI8532 digital video graphic port ITU BT 656 8 bit 4 2 2 YCbCr or YPbPr 16 bit 4 2 2 YCbCr or YPbP...

Page 38: ...bit LVDS with this data mapping LVDS_POWER 0x8726 0x3F LVDS_DIGITAL_CTRL 0x8728 0bUU00UU00 where U is user options DISPLAY_CONTROL 0x862C 11 1 For 30 bit LVDS the following bus remappings are supporte...

Page 39: ...M or programmable Flash ROM devices in either 8 or 16 bit configurations External Flash ROM memory requirements range from 512Kbytes to 4Mbytes depending on the application Both firmware and OSD conte...

Page 40: ...tion on the MSTR_SDA is in integer multiples of 8 bits i e bytes The number of bytes that can be transmitted per transfer is unrestricted Each byte is transmitted with the most significant bit MSB fir...

Page 41: ...not used Clock Synthesis Additional synthesized clocks using PLLs 1 Main Timing Clock T_CLK is the output of the chip internal crystal oscillator T_CLK is derived from the TCLK XTAL pad input 2 Refere...

Page 42: ...g signals These signals are re configurable as different combinations of composite S Video YPrPb and RGB video streams depending upon the end application The Analog Front End directs inputs through an...

Page 43: ...zation There are two types of switching required Channel Selection Fast Blank Switching Digital Front End Digital Processing after AFE The DFE consists of 3 channels that can support the following Fix...

Page 44: ...essing block Other RGB input data streams such as computer inputs remain in the RGB space and are processed as such The 24 bit Digital Input Port provides control signals to simplify signal detection...

Page 45: ...llowed through the data pipeline for subsequent processing Data that lies outside of the window is ignored Figure 8 11 Input Capture Window Input cropping is required in a video system since video sig...

Page 46: ...aced diagonal lines DCDi Edge processing is optimized for a memory architecture that is unified with the memory used for scaling This block can process 24 bit RGB 16 bit 4 2 2 YUV or 16 bit 4 2 2 YPrP...

Page 47: ...mable via the host interface register set enabling this device to be used as a display controller of a PIP processor for other Genesis Microchip devices The following display synchronization modes are...

Page 48: ...ze as the output of the Scaling Engine If the Display Active Window is set too small then the bottom and right hand edges of the image data are cropped If the Display Active Window is set too large th...

Page 49: ...ping to the LVDS channels Programmable channel swapping the clocks are fixed Programmable channel polarity swapping Supports up to SXGA 75Hz output On Chip Microcontroller OCM The on chip microcontrol...

Page 50: ...ge 7 17 File No SG 0219 Figure 8 14 FLI8125 OCM Programming The operation of HDMI Sil9011 The SiI 9011 provides one HDMI input port The SiI 9011 video output goes to a video processor while the audio...

Page 51: ...ctive Port Detection The PanelLink core detects an active TMDS clock and detects an actively toggling DE signal These states are accessible in register bits useful for monitoring the status of the HDM...

Page 52: ...iled path diagram Figure 8 16 HDMI Video Processing Path Color Range Scaling The color range depends on the video format according to the CEA 861B specification In some applications the 8 bit input ra...

Page 53: ...ontal timing signals for display device Audio is processes to the tuner output to SIF circuit and output to 4450 The operation of DTV route DTV signal is processes to the tuner and output to MT5112 wh...

Page 54: ...CONFIDENTIAL DO NOT COPY Page 8 1 File No SG 0219 Chapter 8 Waveforms 1 Ripple Voltage 1 PDP_ 5Vsc CN1 1 2 PDP_ 12V CN1 7...

Page 55: ...CONFIDENTIAL DO NOT COPY Page 8 2 File No SG 0219 3 PDP_ 5Vsb CN3 4 4 FLI8125 U10 3 3V_I O_HUD...

Page 56: ...CONFIDENTIAL DO NOT COPY Page 8 3 File No SG 0219 3 3V_ADC_HUD 1 8V_ADC_HUD...

Page 57: ...CONFIDENTIAL DO NOT COPY Page 8 4 File No SG 0219 5 FLI8532 U13 3 3V_I O 1 8V_ADC...

Page 58: ...CONFIDENTIAL DO NOT COPY Page 8 5 File No SG 0219 2 5V_DDR 1 8V_CORE...

Page 59: ...CONFIDENTIAL DO NOT COPY Page 8 6 File No SG 0219 6 NT5DS16M16CS 5T U16 U17 7 Am29LV320DT90 ED XU1...

Page 60: ...CONFIDENTIAL DO NOT COPY Page 8 7 File No SG 0219 8 LM2660 5V_N of the U29...

Page 61: ...CONFIDENTIAL DO NOT COPY Page 8 8 File No SG 0219 2 Clock Timing 1 NT5DS16M16CS 5T DDR clock pin 45 of the U16 or U17 2 FLI8125 Crystal clock pin 15 of the U10...

Page 62: ...CONFIDENTIAL DO NOT COPY Page 8 9 File No SG 0219 Hudson output clock 3 FLI8532 Crystal clock pin B26 of the U13 or pin 1 of the C155 Cortze output clock...

Page 63: ...CONFIDENTIAL DO NOT COPY Page 8 10 File No SG 0219 4 MSP4450G crystal clock pin 55 of the U32...

Page 64: ...CONFIDENTIAL DO NOT COPY Page 8 11 File No SG 0219 5 SiI9011CLU crystal clock pin 84 of the U35 and U42 6 IC SM5964C40J crystal clock pin 20 of the U38...

Page 65: ...CONFIDENTIAL DO NOT COPY Page 8 12 File No SG 0219 3 Horizontal and Vertical sync Timing 1 VGA input 1024x768x60Hz H sync...

Page 66: ...CONFIDENTIAL DO NOT COPY Page 8 13 File No SG 0219 V sync...

Page 67: ...CONFIDENTIAL DO NOT COPY Page 8 14 File No SG 0219 2 SiI9011CLU U35 and U42 CLK BHS sync...

Page 68: ...CONFIDENTIAL DO NOT COPY Page 8 15 File No SG 0219 BVS sync...

Page 69: ...CONFIDENTIAL DO NOT COPY Page 8 16 File No SG 0219...

Page 70: ...CONFIDENTIAL DO NOT COPY Page 8 17 File No SG 0219 ATSC Board 1 Voltage Measurement 1 12V 12V C4 2 5V 5V C239...

Page 71: ...CONFIDENTIAL DO NOT COPY Page 8 18 File No SG 0219 3 3 3V DV33 C11 4 2 5V DV25 C185...

Page 72: ...CONFIDENTIAL DO NOT COPY Page 8 19 File No SG 0219 5 1 8V DV18 C64 6 1 25V 1V25_DDR C148...

Page 73: ...CONFIDENTIAL DO NOT COPY Page 8 20 File No SG 0219 7 1 2V DV12 C26...

Page 74: ...CONFIDENTIAL DO NOT COPY Page 8 21 File No SG 0219 2 Clock Timing 1 MT5351 Clock Timing U10 B2 OXTALI 2 MT5112 Clock Timing U9 97 XTAL1 96 XTAL2 Ch1 XTAL1 Ch2 XTAL2...

Page 75: ...CONFIDENTIAL DO NOT COPY Page 8 22 File No SG 0219 3 Memory Clock Timing U13 45 MEM_CLKA 4 Memory Clock Timing U12 45 MEM_CLKA...

Page 76: ...NFIDENTIAL DO NOT COPY Page 9 1 File No SG 0219 Chapter 9 PDP Trouble Shooting A SYSTEM OVERVIEW Power supply board Y driver board X driver board Main board EMI filter IR board Display board ATSC Boar...

Page 77: ...ING BOARD Y DRIVER BOARD Y ELECTRODE DRIVING BOARD AUDIO POWER SELECTOR AUDIO POWER SUPPLY 30V OR 24V MAIN BOARD 385001020150 CONNECTING TO TRANSFER DISPLY SIGNAL TO PDP SET AMPLIFIER THE AUDIO SIGNAL...

Page 78: ...CONFIDENTIAL DO NOT COPY Page 9 3 File No SG 0219 DISPLAY BOARD IR BOARD...

Page 79: ...CONFIDENTIAL DO NOT COPY Page 9 4 File No SG 0219 ATSC BOARD...

Page 80: ...24LC32 EEPROM HUD ADATA 0 23 W11 NTSC CVBS SV1_HUT 2 Wire Controller A3 B3 C3_HUD FL8532_CTZ U42 IDTQS3253 HDMI1 AUDIO SW U20 4052 I O SW SV4_CTZ BDATA 0 23 Digital A Input TV J8 Speaker L W7 51_RXD...

Page 81: ...use open F2 F3 F4 Fuse fail Yes No Yes U13 fail No Yes Check input source Check internal cable 1 CN1 s cable 2 CN3 s cable No Check main board CN3 pin 4 studyby 5V Check CN3 pin 3 RLY_ON high Check CN...

Page 82: ...1 Pr signal C264 Is there sync No Is picture on screen No Trace componect 1 from Input To U13 circuit Check R204 R201 Use GProbe connect from main to PC Does scaler detect the signal Yes No U13 fail...

Page 83: ...10 circuit Check R200 R198 Use GProbe connect from main to PC Does scaler detect the signal Yes No U10 fail BLOCK 1 PDP DISPLAY NOTHING Analog HD1 on PIP mode without Pb signal Check component 2 Y sig...

Page 84: ...put pin 11 Input clamp voltage pin 1 5V Output clamp voltage pin 35 5V VCC3 pin 22 23 5V Input_switch_select high 5V Use GProbe connect from main to PC Does scaler detect the signal Yes No U13 fail PD...

Page 85: ...elect high 5V Use GProbe connect from main to PC Does scaler detect the signal Yes No U10 fail PDP DISPLAY NOTHING Analog HD2 on PIP mode without Pr signal BLOCK 1 U24 fail No Check before U24 s circu...

Page 86: ...G signal C232 R177 R171 U22 31 B signal C231 R174 R176 U22 28 Yes No Check U22 input signal R pin 2 C239 C241 AC coupled R186 R172 75ohm G Pin 4 C234 C236 AC coupled R166 R175 75ohm B Pin 6 C221 C224...

Page 87: ...edance Is there signal Yes Yes Use GProbe connect from main to PC Does scaler detect the signal Q10 fail No Check input source No Check C310 R275 R274 Is there signal No Is picture on screen No PDP DI...

Page 88: ...Is there signal Yes Yes Use GProbe connect from main to PC Does scaler detect the signal Q13 fail No Check input source No PDP DISPLAY NOTHING Composite 2 on PIP without screen Check C316 R284 R285 Is...

Page 89: ...2 R297 3 R299 75ohm impedance Is there signal Yes Yes Use GProbe connect from main to PC Does scaler detect the signal Q13 fail No Check input source No Is picture color ok Check C328 R308 R307 Is th...

Page 90: ...oupled 2 R297 3 R299 75ohm impedance Is there signal Yes Yes Use GProbe connect from main to PC Does scaler detect the signal Q10 fail No Check input source No Is picture color ok Check C326 R306 R307...

Page 91: ...2 R300 3 R302 75ohm impedance Is there signal Yes Yes Use GProbe connect from main to PC Does scaler detect the signal U13 fail No Check input source No Is picture color ok Check C336 R319 R318 Is th...

Page 92: ...oupled 2 R300 3 R302 75ohm impedance Is there signal Yes Yes Use GProbe connect from main to PC Does scaler detect the signal U10 fail No Check input source No Is picture color ok Check C334 R317 R318...

Page 93: ...HDMI1 Check Q44 source high 3 3V Check crystal Y2 28 322MHz Yes No Check input source Yes Yes Check U35 I2C bus CSDA pin 39 CSCL pin 40 No Check Q44 Gata high 5V No Q44 fail Yes Check U35 all power U3...

Page 94: ...MI s chip communicate with SM5964 is ok No Check U38 s power Pin 44 35 Check Y3 11 0592MHz Yes No Check U38 s UART TxD pin 13 RxD pin 11 Check U20 pin 16 5V Pin 10 output select high No U20 fail start...

Page 95: ...1 DDC OK Support DDC2B 1 Analog cable ok 2 Voltage of 5V_BUF ok 3 Check U21 4 Is compliant protocol Support DDC2B 1 HDMI cable ok 2 Voltage of VCC5_E2P_2ok 3 Check U44 4 Is compliant protocol Yes No D...

Page 96: ...nal Yes No Appstest 90 1 0x14 0x3540 Gprobe 5 0 Is there 1KHz output No U32 Fail Check U32 input R372 R379 No Check U27 U28 output R326 R328 Digital HD2 AV1 R332 R334 Digital HD1 AV2 R348 R351 Analog...

Page 97: ...CONFIDENTIAL DO NOT COPY Page 9 22 File No SG 0219 TROUBLE OF THE DTV...

Page 98: ...T COPY Page 10 1 File No SG 0219 Chapter 10 Block Diagram System Block Diagram J8 CN1 IR BOARD CN5 EMI Fillter W1 CN3 J2 LVDS BOARD CN13 POWER BOARD CN12 J4 Y DRIVER BOARD X DRIVER BOARD W2 J7 MAIN BO...

Page 99: ...NTSC CVBS COMP1_Audio_R L 2 Wire Controller TUNER A2 B2 C2_CTZ U40 24LC128 EEPROM 8051 ARXD LVDS Display Interface 2 AUDIO L R OUT AUDIO TUNER SIF U40 24LC02 EEPROM HDMI2 Frame Store DDR Interface HY5...

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