COLOR TFT-LCD TV SERVICE MANUAL MODEL : LT-32HLFH CAUTION !! BEFORE SERVICING THE TFT-LCD TV, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONTENTS Contents ------------------------------------------------------------------------- 2 Safety precautions ----------------------------------------------------------- 3 Servicing precautions ------------------------------------------------------- 4 Specifications ------------------------------------------------------------------ 5 Location of control ----------------------------------------------------------- 9 Trouble Shooting ------------------------------------------------------------- 12 Deassembl
SAFETY PRECAUTIONS !! Important Safety Notice !! Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
SERVICING PRECAUTIONS CAUTION!! Before servicing receivers covered by this service manual, read and follow the SAFETY PRECAUTIONS on page 2 of this publication. General Servicing Precautions 1.Always unplug the receiver AC power cord from AC power source before; ⓐRemoving or reinstalling any component, circuit board module or any other receiver assembly. ⓑDisconnecting or reconnecting any receiver electrical plug or other electrical connection.
SPECIFICATIONS Note: Specifications and others are subject to change without notice for improvement. 1.Scope. This document is the specification of 32” TFT-LCD Color TV. 2.Power 1) Power requirement 150W 2) AC / DC SMPS. Input Frequency : 50 / 60㎐ Input Voltage: AC 100V- 240V 2.5A ~1.5A Output Voltage: DC 12V, 24V 3) Power cord Use UL listed and CSA certified detachable power cord type; SVT, 3-conductors, 18AWG For AC 120V area.
SPECIFICATIONS 9.Receiving RF TV system NO 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 Model System PAL-B PAL-G PAL-I, I /I PAL-D PAL-K SECAM-B SECAM-G SECAM-D SECAM-K SECAM-K1 SECAM-I (6.0) NTSC-3.58 / 4.5 NTSC-3.58 / 5.5 NTSC-3.58 / 6.0 NTSC-3.58 / 6.5 NTSC-3.58 / 4.5(5.0) NTSC-4.43 / 5.5 NTSC-4.43 / 6.0 NTSC-4.43 / 6.5 PAL 5.5 / 60Hz PAL 6.0 / 60Hz PAL 6.5 / 60Hz SECAM 5.5 / 60Hz SECAM 6.0 / 60Hz SECAM 6.
SPECIFICATIONS 10. PC Mode Scan Frequency & Timing 1) Scan Freq: H: 31～56 kHz / V: 56～75㎐ 2) Preset Timing Chart Note!! : ⓐ If the set is cold, there may be a small “flicker” when the set is switched on. This is Normal, there is nothing wrong with the set. ⓑ If possible, use the XGA 1024 x 768@60HZ video mode to obtain the best image quality for your LCD monitor. If used under the other resolutions, some scaled or processed pictures may appear on the screen.
SPECIFICATIONS 11. TFT – LCD Panel Character Description LTA320W2-L03 is a color active matrix TFT(Thin Film Transistor) liquid crystal display(LCD) that uses amorphous silicon TFTs as a switching devices. This model is composed of a TFT LCD panel, a driver circuit and a back-light system. The resolution of a 32.0" contains 1366 X 768 pixels and can display up to 16.7 million colors with wide viewing anale of 85˚or higher in all directions.
LOCATION OF CONTROL All the functions can be controlled with the remote controller. Some functions can also be adjusted with the buttons on the side panel of the set. Remote controller Before you use the remote controller, please install the batteries. 1. POWER Turns the TV on from standby or off to standby mode. 2. MUTE Turns the sound on and off. 3. NUMBER buttons Selects programme numbers. 4. TV/AV Selects TV, SCART1,SCART2, S-VIDEO, RADIO(Only when the set is Radio On.
LOCATION OF CONTROL 14. PICTURE( ) Recalls your preferred picture setting 15. SOUND( ) Recalls your preferred sound setting 16. ARC( ) You can watch TV in various picture formats; Auto, 16:9, 14:9, 4:3, 16:9 Zoom, 14:9 Zoom, 4:3 Zoom. Repeatedly press the ARC button to select your desired picture format. Note. 16:9 and 4:3 in PC mode are available. 17. TELETEXT buttons These buttons are used for Teletext. For further details, see the ‘Teletext’ section. 18.
LOCATION OF CONTROL 1-3. Controller of Panel < SIDE VIEW> 1.ON/OFF: Switches TV set on or off. 1 2.MENU: Display a menu. - 2 3.+ PR ( Programme Up/Down): Selects a programme or a menu item. - 3 4.+ VOL ( Volume Up/Down): Adjusts the volume. Adjusts menu settings. 5.TV/AV: Selects input signal source. Clears the menu from the screen. 4 5 6 7 SERVICE MANUAL 6:POWER INDICATOR: Illuminates red when the TV is inpower standby mode. Illuminates green when the TV isswitched power on mode.
TROUBLE SHOOTING No Raster Check P803 (8~12) : 24V? P804 (6~10) : 24V Y Check P303 (25~27) : 5V? N Check Q804 (3) Replace LCD Panel. (If possible, replace inverter module.
TROUBLE SHOOTING No Sound & Picture OK IC601 (4,7,12,15) = 24V? Y IC601 (25-Mute) < 0.7V? (L:Mute/ H:On) Y N N Y N IC101 (123/124 L/R) Q104/105 (E) Sound Wave ? Check 24V Line ZD601 (C) < 1V? N Replace ZD601 Replace IC202 N Replace IC101 No Operation LED blinking No LED Y Y Resistance : 0 ? IC804 (4) <-> GND Check All SCL/SDA TTL Level ? Y Replace IC804 / D850 N Replace Non-Operation IC.
DEASSEMBLY PROCEDURE 1. Disassembly procedure 1).
DEASSEMBLY PROCEDURE 2).Metal plate & Rear chassis Remove 5 screws Removal of rear metal chassis...
DEASSEMBLY PROCEDURE 3).
DEASSEMBLY PROCEDURE 4).
DEASSEMBLY PROCEDURE 5).
MECHANICAL EXPLODED VIEW NO 1 2 3 4 5 6 7 8 9 PART NO 610-006A 400-021C DESCRIP TION DECO FRONT SPEAKER FRONT COVER 10W,10Ω PC+ABS COLOR FINISH BLACK SILVER,BLACK LENS SENSOR IR PCB PC - TRANSPARENCE - 1 1 404-004B CONTROL PCB BLOCK KNOB ABS SILIVER 1 1 450-001Z CONTROL PLATE AL SILIVER 1 408-002D AYCOLT40A01A PANV320W2L01 PANEL MATERKAL PMMA SAMSUNG - Q'TY 1 2 1 407-005F 407-001Z 620-005D BRKT L,R LCD BRKT SMPS EGI EGI - - 2 1 1 13 14 15 AYMALT52A01A 407-007S,T 407-002L MAI
WIRE DRESSING 1.
ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 1.SVC mode data Adjustment NOTE!! When the EEPROM has been replaced, the SVC data should be restored as the function of individual system and specification. When the EEPROM has been replaced White Blance Checking. [ Enter and exit SVC mode ] Note: into the SVC mode, Initialize with default data. 1) Press 5 Seconds MENU buttons on both TV set and Remote Controller at the same time to get into SVC mode. 2) Press the PR ▲▼ button several times to find SVC Data.
ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 2. White Blance Checking 1. Panel : SSLTA320W2-L03-10K 6. Setting : All Start Click 9. Pattern Generator : MSPG-3420 PATTEN : Patten No. : 33 MODE : 1024*768(13) SERVICE MANUAL 2. MODEL : L 7. PC White Balance Setting中 10. Equipment : MSPG-925FS MODE : 1024*768 3. Language Option EU 14EA : 8. White Balance Setting Verify 4. PC Pattern Generator 1024 x 768, 60Hz (Pattern Generator : MSPG-3420) 5.
INSPECTION INSTRUCTION 1. Supplied Accessories Note: Make Sure the following accessories are provided with Product.
INSPECTION INSTRUCTION * 2.
NO 1 PART NO - DESCRIP TION LCD COLOR TV MATERKAL - COLOR - Q'TY 1 2 321-006A POLY VINLY PE - 1 3 310-021A,B PACKING BOTTOM (L,R) EPS WHITE 2 4 300-012B SET BOX PAPER - 1 5 - ACCESSORY - - 1 6 7 310-022A,B 499-002A PACKING TOP (L,R) TAPE OPP EPS - WHITE - 2 - 3 1 2 4 5 6 7 MATERIAL THIS TREATMENT MODEL LT32H DATA 2005. 10. 26 ENGR D. H. KIM GHK TITLE APPD SCALE SET Packing Exploded Drawg DRAWING NO.
PCB LAYOUT 1. CONTROL PCB 2. Tuner PCB 3.
REPLACEMENT PART LIST 1.
REPLACEMENT PART LIST 2. Parts List (Assemble process) LEVEL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 PART NO 510-320A 520-001A 610-006A 620-005D 621-001B 626-002C 627-001A AYBCLT32A01R AYCALT43A02A AYCOLT40A01A AYMALT52A01A AYSTLT32A01F CON02P200AOU CON03P200AOY CON05P200ABH CON07P200AD3 CON12P200ACL CON12P250ACX CON30P125ACF PANLTA320W02 PART NAME NO BRAND,(PR),symbol 1.5V, AAA SIZE 10W,8Ohm(CT156B03K) 32",SMPS,HNE,150W VDE KKP-4819R (EU) IVORY,1.8M,15P,SHORT 1.
REPLACEMENT PART LIST P/N AYMALT52A01A HD READ_SCART_32(5V) Description GRLT51AM001B LAVEL P/N 1 0JASCART001D GR, SCART MANUAL VENDOR P/N JACK, SCART Description SCART/AV-6P Q'ty Circuit No. 2 J401,J403 GRLT51AA001B LAVEL P/N 2 0CESS100CMTR 2 0CESS220CMTR GR, SCART AUTO VENDOR P/N CESSL1C100M0511AD CESSL1C220M0511AD Description 10U 22U/16V Q'ty Circuit No.
REPLACEMENT PART LIST GRLT51AA001A LAVEL P/N 2 0CESS2R2HMTR 2 0CESS3R3HMTR GR,HD-READY COMMON AUTO VENDOR P/N Capacitor, 2.2UF 50V Capacitor, 3.3UF 50V 2.2U 3.3U Description 2 0CESS470CMTR Capacitor, 47UF 16V 47U 2 2 2 2 0CESS471CMTR 0CESS4R7HMTR 0CESS684HMTR 0CQSS104KKTR 470UF 16V Capacitor, 4.7UF 50V Capacitor, 0.68UF 50V 0.1UF 100V 470U/16V 4.7U/50V 0.68U/50V 0.
REPLACEMENT PART LIST GRLT51AS001A LAVEL P/N 3 0ICVI4925DTS GR, HD-READY COMMON SMD VENDOR P/N DUAL P-CHANNEL 30V MOSFET SI4925 Description 3 0LBSS101DJTS 100 OHM, 2012 101/2012 3 0LBSS601FJTS 600 OHM, 3216 601/3216 3 0LHSS120EJTS 12UH, 2012 12UH/2012 3 0LRSL10100BS INDUCTOR 33UH 3 0RHSS000DJTS GRLT51AS001A LAVEL P/N Resistor, chip 0 ohm 75 0 GR, HD-READY COMMON SMD VENDOR P/N Q'ty Circuit No.
REPLACEMENT PART LIST GRLT51AS001A LAVEL P/N 3 0RHSS392DJTS 3 0RHSS393DJTS 3 0RHSS3R0DJTS 3 0RHSS470DJTS 3 0RHSS471DJTS GR, HD-READY COMMON SMD VENDOR P/N Resistor, chip 3.9K Resistor, chip 39K 3 OHM, 1608 J Resistor, chip 47 ohm Resistor, chip 470 ohm 3.9K 39K 3 47 470 Q'ty 2 2 1 2 3 Description 3 0RHSS472DJTS Resistor, chip 4.7K 4.7K 22 3 0RHSS473DJTS Resistor, chip 47K 47K 12 3 0RHSS474DJTS Resistor, chip 470K 470K 2 3 0RHSS512DJTS RESISTOR, CHIP 5.
REPLACEMENT PART LIST GRLT41AM001H LAVEL P/N 1TPMU40R9MTD GRLT41DS001G LAVEL P/N 3 0TRKE3875STS 3 0RHSS472DJTS GRLT51AS001G LAVEL 3 P/N MKTGA40M9AAHP00A03 GR, LL' SMD VENDOR P/N KTC3875S Resistor, chip 4.7K VCTI 15/17 동일I Description 40.9M V2327 신규 Description C3875 4.
BLOCK DIAGRAM 1.
CIRCUIT DESCRIPTIONS General Description for 26.0” color TFT LCD TV. The TFT LCD TV described in the followings is based on a Multi TV system, digital Control display, 26.0" diagonal. The TFT LCD TV is intended to be a finished product, Basically a display device mounted inside an enclosure which will provide the safety Requirements. With the exception of LCD Panel, the display device shall be composed entirely of solid state components.
CIRCUIT DESCRIPTIONS 1.SCALER SECTION.
1) Description The MST5151A is a high performance and fully integrated graphics processing IC solution for multi-function LCD monitor/TV with resolutions up to SXGA. It is configured with an integrated triple-ADC/PLL, an integrated DVI/HDCP/HDMI receiver, two video de-interlacers, two high quality scaling engines, an on-screen display controller, and a built-in output clock generator. By use of external frame buffer, PIP/POP is provided for multimedia applications.
CIRCUIT DESCRIPTIONS 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 1 156 2 155 3 154 Pin 1 4 153 152 6 151 7 150 8 149 9 148 10 147 11 146 12 145 13 144 14 143 15 142 16 141 17 140 18 139 19 138 20 137 21 136 22 135 23 134 24 133 25 26 27 28 29 30 31 32 33 34
CIRCUIT DESCRIPTIONS PIN DESCRIPTION MCU Interface Pin Name Pin Type Function Pin HWRESET Schmitt Trigger Input Hardware Reset, active high 67 w/ 5V-tolerant DBUS[3:0] I/O w/ 5V-tolerant MCU 4-bit DDR Direct bus; 4mA driving strength 75-72 ALE I w/ 5V-tolerant MCU Bus ALE, active high 69 RDZ I w/ 5V-tolerant MCU Bus RDZ, active high 70 WRZ I w/ 5V-tolerant MCU Bus WDZ, active high 71 INT Output MCU Bus Interrupt; 4mA driving strength 68 Function Pin RMID Mid-Scale Voltage Byp
CIRCUIT DESCRIPTIONS Pin Name Pin Type Function Pin GIN1M Analog Input Reference Ground for Analog Green Input from Channel 1 24 RIN1P Analog Input Analog Red Input from Channel 1 25 RIN1M Analog Input Reference Ground for Analog Red Input from Channel 1 26 Pin Name Pin Type Function Pin DVI_R+ Input DVI Input Channel Red + 207 DVI_R- Input DVI Input Channel Red - 208 DVI_G+ Input DVI Input Channel Green + 2 DVI_G- Input DVI Input Channel Green - 3 DVI_B+ Input DVI Inpu
CIRCUIT DESCRIPTIONS LVDS Interface Pin Name Pin Type Function Pin LVA0M Output A-Link Negative LVDS Differential Data Output 171 LVA0P Output A-Link Positive LVDS Differential Data Output 170 LVA1M Output A-Link Negative LVDS Differential Data Output 169 LVA1P Output A-Link Positive LVDS Differential Data Output 168 LVA2M Output A-Link Negative LVDS Differential Data Output 167 LVA2P Output A-Link Positive LVDS Differential Data Output 166 LVA3M Output A-Link Negative LVDS Dif
CIRCUIT DESCRIPTIONS DRAM Interface Pin Name Pin Type Function Pin MVREF Input Reference Voltage for DDR SDRAM Interface 104 MCLKE Output DRAM Memory Clock Enable 105 MCLKZ Output DRAM Memory clock Complementary /Input 106 (for differential clocks) MCLK Output DRAM Memory Clock 107 RASZ Output Row Address Strobe, active low 112 CASZ Output Column Address Strobe, active low 115 WEZ Output Write Enable, active low 116 DQM[1:0] Output Data Mask Byte Enable 101, 133 DQS[3:0]
CIRCUIT DESCRIPTIONS Pin Name Pin Type Function Pin VDDM 3.3V Power (SDR SDRAM) / DRAM Interface Power 86, 102, 113, 125, 139, 2.5V Power (DDR SDRAM) 154 VDDP 3.3V Power Digital Output Power 66, 162, 182 VDDC 1.
CIRCUIT DESCRIPTIONS MECHANICAL DIMENSIONS A A2 A1 θ1 θ2 c R1 R2 θ Gage Plane 0.25mm Seating Plane b L Symbol L1 S E2 E E1 D D1 D2 Millimeter e Inch Min. Nom. Max. Min. Nom. Max. Symbol Millimeter Inch Min. Nom. Max. Min. Nom. Max. A - - 4.10 - - 0.161 θ 0° - 7° 0° - 7° A1 0.25 - - 0.010 - - θ1 0° - - 0° - - A2 3.20 3.32 3.60 0.126 0.131 0.142 θ2 8° Ref 8° Ref D 31.20 1.228 b 0.17 0.20 0.27 0.007 0.008 0.011 D1 28.00 1.102 c 0.11 0.15 0.
CIRCUIT DESCRIPTIONS General Description Features Introduction The VCT 49xxI family offers a rich feature set, covering the whole range of state-of-the-art 50/60-Hz TV applications. The VCT 49xxI is an IC family of high-quality singlechip TV processors. Modular design and deep-submicron technology allow the economic integration of features in all classes of single-scan TV sets.
CIRCUIT DESCRIPTIONS IFIN+ IFIN- IF Frontend IF Processor Sound Demodulator SPEAKER AOUT AIN SIF TAGC Chip Architecture Audio Processor PROT HOUT HFLB CVBS in YCrCb in RGB in Video Frontend Comb Filter Color Decoder Component Interface CVBS out VERT Panorama Scaler Display & Deflection Processor EW Video Backend SVM RGB out RGB in SENSE RSW Slicer Bus Arbiter 24kB Char ROM 20kB XRAM Display Generator CPU 8051 256kB Prog ROM Memory Interface ADB, DB, PSENQ, PSWEQ, WRQ, RDQ Fi
CIRCUIT DESCRIPTIONS Pin Connections and Short Descriptions NC = not connected LV = if not used, leave vacant OBL = obligatory; connect as described in circuit diagram IN = Input Pin OUT = Output Pin SUPPLY = Supply Pin Pin No. PSSDIP 88-pin Pin Name Type Connection Short Description (If not used) PMQFP-2 144-pin 1 128 GND SUPPLY OBL Ground Platform 2 129 VSUP5.0BE SUPPLY OBL Supply Voltage Analog Video Back-end, 5.
CIRCUIT DESCRIPTIONS Pin No.
CIRCUIT DESCRIPTIONS Pin No. PSSDIP 88-pin Pin Name Type Connection Short Description (If not used) PMQFP-2 144-pin 59 69 VIN10 IN GND Analog Video 10 Input 60 70 VIN11 IN GND Analog Video 11 Input 61 98 P23 IN/OUT LV Port 2, Bit 3 Input/Output 62 99 P22 IN/OUT LV Port 2, Bit 2 Input/Output 63 100 XTAL2 OUT OBL Analog Crystal Output 64 101 XTAL1 IN OBL Analog Crystal Input 65 102 VSUP1.8DIG SUPPLY OBL Supply Voltage Digital Core, 1.
CIRCUIT DESCRIPTIONS Pin No. PSSDIP 88-pin Pin Name Type Connection Short Description (If not used) PMQFP-2 144-pin 85 124 SPEAKERL 86 125 VREFAU 87 126 VSUP8.0AU 88 127 OUT LV Analog Loudspeaker Output, Left OBL Reference Voltage, Audio SUPPLY OBL Supply Voltage Analog Audio, 8.
CIRCUIT DESCRIPTIONS Pin No.
CIRCUIT DESCRIPTIONS Pin Descriptions than one capacitor. By choosing different values, the frequency range of active decoupling can be extended. Supply Pins VSUP1.8DIG − Supply Voltage 1.8 V This pin is main and standby supply for the digital core logic of controller, video, display and deflection processing. VSUP1.8FE − Supply Voltage 1.8 V This pin is main supply for the analog video front-end. VSUP3.3FE − Supply Voltage 3.3 V This pin is main supply for the analog video front-end. VSUP3.
CIRCUIT DESCRIPTIONS General Description AOUT1 R/L – Audio 1 Outputs (Fig. 4–11) Output of the analog audio 1 signal. Connections to these pins are intended to be AC coupled. AOUT2 R/L – Audio 2 Outputs (Fig. 4–11) Output of the analog audio 2 signal. Connections to these pins are intended to be AC coupled. SPEAKER R/L – Loudspeaker Outputs (Fig. 4–13) Output of the loudspeaker signal. A 1 nF capacitor to GND must be connected to these pins. Connections to these pins are intended to be AC-coupled.
CIRCUIT DESCRIPTIONS General Description SENSE − Measurement ADC Input (Fig. 4–27) This is the input of the analog to digital converter for the picture and tube measurement. Three measurement ranges are selectable with RSW1 and RSW2. GNDM − Measurement ADC Reference Input This is the reference ground for the measurement A/D converter. Connect this pin to GND. RSW1 − Range Switch1 for Measuring ADC (Fig. 4– 25) These pin is an open drain pulldown output.
CIRCUIT DESCRIPTIONS P34 / 656IO4 P35 / 656IO5 74 73 GNDEIO P33 / 656IO3 75 76 77 P31 / 656IO1 P32 / 656IO2 VSUP3.3EIO 78 80 79 81 82 ADB3 P24 / 656CLKIO P25 / 656HIO P26 / 656VIO P30 / 656IO0 84 83 86 85 88 87 89 DB3 DB2 DB1 DB0 ADB0 ADB1 ADB2 90 91 DB5 DB4 92 93 94 ADB10 DB7 DB6 96 XTAL1 XTAL2 101 95 VSUP1.8DIG 102 P23 PSENQ GND 103 97 GND 104 P22 VSUP3.3DIG 105 98 VSUP5.
CIRCUIT DESCRIPTIONS Advance Information Supplement Subject: Additional Info for VCT 49xyI Data Sheet Concerned: VCT 49xyI 6251-573-1AI, Edition Feb. 18, 2004 Supplement: Version History Edition: Dec. 16, 2004 Changes to the previous revision are indicated by change bars. Please note section 2.1.1.2., which is of importance for the use of the VCT-I F1 in combination with NICAM-audio modes. 1. VCT 49xyI Version History 1.1.
CIRCUIT DESCRIPTIONS Table 1–2: History of functional problems, continued No.
CIRCUIT DESCRIPTIONS Table 1–2: History of functional problems, continued No. Functional Problem C6 C7 D2 D4 D5 F1 F2 Comment 63 ODC-Modes: FHPULLIN/ SHPULLIN ! ! ! ! ! ! ! ! = Workaround available no redesign planned 64 Safety Pin x x x x x Problem solved in F1 65 13.
CIRCUIT DESCRIPTIONS 7. VCT 49xyI-C7 The VCT 49xyI-C7 is pin-compatible to VCT 49xyI-C6 and VCT 49xyI-C4. Problem 45 has been solved. Problem 43 is partly solved: Improved internal clock suppression leads to reduced noise floor and better video snr. Problems 53 and 54 have not been detected before D2. VCT 49xyI-C7 includes functionality of DRX396xA-H8. Table 7–1: Functional problems of VCT 49xyI-C7: No.
CIRCUIT DESCRIPTIONS No. Problem Description Comment OK 48 DRX AGC Hangup If VAGC_REDUC>0 and positive signal jumps above top level, AGC hangup may occur and CVBS output level is reduced. firmware redesign D1 D2 Automatic standard detection fails, if EIA-J is selected as preferred 4.5MHz-sound carrier. firmware redesign D4 53 MSP Automatic Standard Detection workaround: KI_CHANGE_TH = 19 after standard change D4 workaround: avoid Mod_4_5MHz[1:0]=[1,0].
CIRCUIT DESCRIPTIONS 2. VCT 49xyI-F1 The VCT 49xyI-F1 is targeted to solve field and functional problems of the earlier VCT-I versions. For that purpose some new registers were implemented. In addition workarounds used for VCT-I versions prior to F1 may not be compatible. The VCT 49xyI-F1 is pin-compatible to VCT 49xyI-D5. Functional problems 50, 56, 57 and 58, 62, 64, 65, 66, 68, 69, 70, 71 have been solved. Problem 55 has been solved but requires software initialisation.
CIRCUIT DESCRIPTIONS 2.1. Register Changes on VCT 49xyI-F1 2.1.1. DRX Part The major improvement of the VCT 49xyI-F1 DRX-performance is based on the speed up of the Tuner-AGC, the Video AGC and the Carrier Recovery. While the faster Tuner and Video AGC help to improve significantly the Streaky Noise and Airplane Flutter issues, the extended Carrier Recovery removes all remaining field test matters.
CIRCUIT DESCRIPTIONS All controller software workarounds used at former versions which write the KIs will no longer be needed and should be removed (see also next section). 2.1.1.2. Comments to the Carrier Recovery in Connection with NICAM Audio Performance The speed up of the carrier recovery to optimize the performance at non standard RF signals (caused by FM modulation and modulator imbalance) is mainly based on a significant extension of the PLL-bandwith.
CIRCUIT DESCRIPTIONS No. Problem Countries Workaround for C7 / Dx Side-Effect Status in F1 Hsync Distortion Malaysia Speed up DRX video AGC: none previously forced values now default remove WA Measured Video S/N 1-2dB smaller unchanged (0xF still default) keep WA - KI_CHANGE_TH=1 - VAGC_REDUC=1 India, Color Sensitivity, bar edge distortion Malaysia RC: default NOISE_BS=15 too high Reduce NOISE_BS to 8 (partly adaptively when chroma level is small) Recommendation for F1 2.1.1.4.
CIRCUIT DESCRIPTIONS 2.1.2. VSP Part Table 2–5: New VSP Registers Name Sub Dir Sync Reset Range Function LPCDEL[2:0] h07[2:0] RW VS_CD 0 -8..7 Window Shift For Fine Error Calculation 100: -4 clock cycles 000: no offset 011: +3 clock cycles THRSEL[1:0] h07[13:12] RW VS_CD 0 0,1,2,3 H Slicing Level Threshold 00: 50% 01: 31% 10: 37% 11: 25% CVBSLPBW[1:0] hB4[5:4] RW VS_CD 0 0..
CIRCUIT DESCRIPTIONS Table 2–5: New VSP Registers, continued Name Sub Dir Sync Reset Range Function h1F[4] RW VS_CO MB 0 0,1 Vertical Peaking Mode 0: 2H PAL, 1H NTSC (old mode) 1: 1H PAL, 2H NTSC (new mode) h26[1:0] R VS_CD 0,1, 2, 3 Macrovision Detection 00: nothing present 01: AGC process present and colorstripe process not present 10: AGC process present and colorstripe process type 2 present 11: AGC process present and colorstripe process type 3 present h55[10] RW VS_ITU 0 0,1 ITU
CIRCUIT DESCRIPTIONS 2.1.3. DPS Part Table 2–9: New DPS Registers Name Sub Dir Sync Reset Range Function hD3[0] RW VS_DEFL 0 0,1 FBOUT Enable at PWMV pin 0: PWMV to Port Mux 1: FBOUT to Port Mux DEFL FBOUTEN Table 2–10: Undocumented DPS Registers (already available in Dx versions) Name Sub Dir Sync Reset Range Function IICINCR[18:3] h00[15:0] RW load_iicinc r 32768 0..
CIRCUIT DESCRIPTIONS Table 2–12: Undocumented XDFP Registers (already available in Dx versions) Name Sub Dir Sync Reset Range Function PER_MIN[10:0] hF2 h0183[10:0] RW 1140 0..2047 HSync Period Minimum PER_MAX[10:0] hF2 h0184[10:0] RW 1426 0..2047 HSync Period Maximum Horizontal Deflection 2.1.5. TVT Part Table 2–13: Wrongly Documented TVT Registers Name Addr Dir Reset Range Function RTCRW h8F[4] RW 0 0,1 RTC Read/Write RTCSUB[3:0] h8F[3:0] RW 0 0..
