VESTEL 17MB08P Service Manual Download Page 13 | Manualshive

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VESTEL 17MB08P Service Manual Download Page 13

9

26” TFT TV Service Manual

04/03/2005

12.5. TEA5114A

12.5.1. General

description

This integrated circuit provides RGB switching allowing connections between peri TV plug, internal RGB
generator and video processor in a TV set.
The input signal black level is tied to the same reference voltage on each input in order to have no
differential voltage when switching two RGB generators.
An AC output signal higher than 2 Vpp makes gain going slowly down to 0dBto protect the TV set video
amplifier from saturation.
Fast blanking output is a logical OR between FB1 (Pin 8) and FB2 (Pin 10).

12.5.2. Features

• 25MHz Bandwidth
• Crosstalk : 55dB
• Short circuit to ground or V

CC

protected

• Anti saturation gain changing
• Video switching

12.5.3. Pin

Connections

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Summary of Contents for 17MB08P

Page 1: ...26 TFT SERVICE MANUAL 17MB08P RELEASE DATE 04 03 2005 PREPARED BY VESTEL ELECTRONICS...

Page 2: ...THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 3: ...2 1 1 General Description 5 12 1 2 Features 5 12 1 3 Applications 5 12 1 4 Connection Diagrams 5 12 2 LM2576 6 12 2 1 General Description 6 12 2 2 Features 6 12 2 3 Pin description 6 12 3 LM317T 7 12...

Page 4: ...5 MC141585 22 12 15 1 General description 22 12 15 2 Features 22 12 15 3 Pin Description 22 12 16 MC34063 24 12 16 1 Description 24 12 16 2 Features 24 12 16 3 Pin connections 24 12 17 MSP34X0G MSP341...

Page 5: ...pedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient Features of UV1316 1 Member of the UV1300 family small sized UHF VHF tuners...

Page 6: ...he 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 sync top for CVBS or black level for RGB signals Each...

Page 7: ...S PDC WSS Acquisition Buffer directly accessible via MOVX UP to 16KByte on Chip Extended RAM XRAM consisting of 1 Kilobyte on chip ACQ buffer RAM access via MOVX 1 Kilobyte on chip extended RAM XRAM a...

Page 8: ...e in P SDIP 52 9 SERIAL ACCESS CMOS 16K 2048 8 EEPROM ST24C16 The ST24C16 is a 16Kbit electrically erasable programmable memory EEPROM organised as 8 blocks of 256 8 bits The memory is compatible with...

Page 9: ...2 5V 2 85V 3 3V and 5V The LM1117 offers current limiting and thermal shutdown Its circuit includes a zener trimmed bandgap reference to as sure output voltage accuracy to within 1 The LM1117 series i...

Page 10: ...k is required or its size could be reduced dramatically A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers This feature greatly simplif...

Page 11: ...LM317 serves a wide variety of applications including local on card regulation This device can also be used to make a programmable output regulator or by connecting a fixed resistor between the adjust...

Page 12: ...y mode except when the power supply is removed The device operates with a power supply value as low as 2 5V Both Plastic Dual in Line and Plastic Small Outline packages are available 12 4 2 Features 1...

Page 13: ...same reference voltage on each input in order to have no differential voltage when switching two RGB generators An AC output signal higher than 2 Vpp makes gain going slowly down to 0dBto protect the...

Page 14: ...uration In other case 1 word of 16 bits is necessary to determine one configuration 12 6 2 Features 20MHz Bandwidth Cascadable with another TEA6415C Internal address can be changed by pin 7 voltage 8...

Page 15: ...80 pin PQFP package 12 7 2 Pin Connections and Short Descriptions NC not connected LV if not used leave vacant X obligatory connect as described in circuit diagram SUPPLYA 4 75 5 25 V SUPPLYD 3 15 3 4...

Page 16: ...Front Sync Horizontal Clamp Pulse Front End Horizontal Sync Output 56 MSY HS IN OUT LV Main Sync Horizontal Sync Pulse 57 VS OUT LV Vertical Sync Pulse 58 FPDAT VSYA IN OUT LV Front End Back End Data...

Page 17: ...ilities based on parallel attributes and Pixel oriented characters DRCS The 8 bit Microcontroller runs at 360 ns cycle time min Controller with dedicated hardware does most of the internal TTX acquisi...

Page 18: ...2 eliminates the need for external heatsinks when playing music 12 9 2 Features 9 W Ch Into an 8 Load From 12 V Supply Efficient Class D Operation Eliminates Heatsinks and Reduces Power Supply Require...

Page 19: ...requency Control AFC detector with 4 bit digital to analog converter AFC bits via I2 C bus readable TakeOver Point TOP adjustable via I2 C bus or alternatively with potentiometer Fully integrated soun...

Page 20: ...cellent power supply ripple rejection Low power consumption Short circuit resistant High performance high signal to noise ratio High slew rate Low distortion Large output voltage swing 12 11 3 Pinning...

Page 21: ...greater than most analog switches offered today A single 5V supply is all that is required for operation The PI5V330 offers a high performance low cost solution to switch between video sources The app...

Page 22: ...he design kit is complete with hardware and software Software includes G Probe debug software G Wizard register calculator and G TV application source code The 6015RD1 is a related reference board tha...

Page 23: ...ided in a space saving 80 lead LQFP surface mount plastic package and is specified over the 0C to 70C temperature range 12 14 2 Features 140 MSPS Maximum Conversion Rate 300 MHz Analog Bandwidth 0 5 V...

Page 24: ...tive The input includes a Schmitt trigger for noise immunity with a nominal input threshold of 1 5 V VSYNC Vertical Sync Input This is the input for vertical sync SOGIN Sync on Green Input This input...

Page 25: ...er operation the pixel clock generator PLL requires an external filter Connect the filter shown in Figure 6 to this pin For optimal performance minimize noise and parasitics on this node POWER SUPPLY...

Page 26: ...ht of character and row to row spacing and full screen erasing and Fade In Fade Out are also incorporated There are 8 color selections for any individual character display with row intensity attribute...

Page 27: ...Data is read at the rising edge of each clock signal VDD Pin 9 This is the power pin for the digital logic of the chip VSYNC Pin 10 Similar to Pin 5 this pin inputs a vertical synchronize signal to sy...

Page 28: ...duty cycle oscillator with an active current limit circuit driver and high current output switch This series was specifically designed to be incorporated in Step Down and Step Up and Voltage Invertin...

Page 29: ...urther simplifies controlling software Standard selection requires a single I C transmission only The MSP 34x0G has built in automatic functions The IC is able to detect the actual sound standard auto...

Page 30: ...8 1 64 NC LV Not connected 11 7 6 80 63 STANDBYQ IN OBL Stand by low active 12 6 5 79 62 ADR_SEL IN OBL I 2 C bus address select 13 5 4 78 61 D_CTR_I O_0 IN OUT LV D_CTR_I O_0 14 4 3 77 60 D_CTR_I O_...

Page 31: ...V SCART output 2 left 51 33 27 33 25 SC2_OUT_R OUT LV SCART output 2 right 52 32 NC LV Not connected 53 32 31 24 NC LV Not connected 54 31 26 30 23 DACM_SUB OUT LV Subwoofer output 55 30 29 22 NC LV N...

Page 32: ...e strobe through a dedicated pin A Rising edge or Falling edge strobe transmitter will interoperate with a Falling edge strobe Receiver DS90CF386 DS90CF366 without any translation logic The DS90C385 i...

Page 33: ...and provide superior switching performance These devices are particularly suited for low voltage applications such as notebook computer power management and other battery powered circuits where fast s...

Page 34: ...e following menu appears on the screen After entering the Service menu you can access its items by pressing buttons In order to enter selected menu use buttons To exit the service menu press M button...

Page 35: ...n Off If ON TV starts with APS menu at Start up A P S On Off Enables disables Automatic Programming System Headphone On Off Enables disables the usage of the HP and HP related items in Sound menu Vsr...

Page 36: ...es NZ Standard NM On Off Enables disables NM Standard FM Prs Avl On Adjusts the FM Prescaler value when Automatic Volume Levelling is On Min Value 0000 00000 Max Value 00FF 00255 Options Equalizer BG...

Page 37: ...s the FM Prescaler value when Automatic Volume Levelling is Off Min Value 0000 00000 Max Value 00FF 00255 Nicam Prs Avl Off Adjusts the Nicam Prescaler value when Automatic Volume Levelling is Off Min...

Page 38: ...0000 Max Value 00FF 00255 Sound On Off Enables disables Sound Carrier On Off Enables disables sound Carrier feature RC_Options Adjusts the Remote Control type The values are 1 RCMM standard remote con...

Page 39: ...l mode feature Enable 00000001 Disable 00000000 X Not used OTHER Adjusts the standard value for APS for Eastern European countries The values are 0 BG standard 1 DK standard X Not used LDLY Adjusts th...

Page 40: ...or to Aps Wss Test parameter by pressing buttons in Service Menu and press button The following menu appears on the screen There are 7 items in the Aps Wss Test menu Programme Search VPS Pdc Format 1...

Page 41: ...7 6 57 5 1 6 57 5 1 6 7 5 0 52 21752 5 6 0 0 521 6 7 7 7 5 6 7 5 6 57 8 2 1 287 5 8 2 1 5 8 2 1 5217B 8 2B5 5217B 8 2B 9 B 1387 8 2 6 7 0 67 3 8 2 1 3 B 1B 3 B 1B5 6 7 8 2 7 6 7 8 2 5 7 8 2 03 5 73 7...

Page 42: ...38 26 TFT TV Service Manual 01 03 2005 15 CIRCUIT DIAGRAMS...

Page 43: ...39 26 TFT TV Service Manual 01 03 2005...

Page 44: ...40 26 TFT TV Service Manual 01 03 2005...

Page 45: ...41 26 TFT TV Service Manual 01 03 2005...

Page 46: ...42 26 TFT TV Service Manual 01 03 2005...

Page 47: ...43 26 TFT TV Service Manual 01 03 2005...

Page 48: ...44 26 TFT TV Service Manual 01 03 2005...

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