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CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise" und „Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
Plasma TV
September 2004
No. 0204
17LD4220
17LD4220U
Data
contained
within
this
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die
in
diesem
Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
Service
Table of Contents
Related Manuals for Hitachi 17LD4220
Summary of Contents for Hitachi 17LD4220
- Page 1 No. 0204 17LD4220 17LD4220U SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precautions” and “Product Safety Notices” in this service manual. Data contained within this Service manual is subject to alteration for improvement.
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ............................1 TUNER..............................1 IF PART (TDA988X) ..........................1 MULTI STANDARD SOUND PROCESSOR .................... 1 AUDIO AMPLIFIER STAGE WITH TPA3003D2 ..................2 POWER ..............................2 MICROCONTROLLER SDA55XX......................2 7.1. General Features..........................2 7.2. External Crystal and Programmable Clock Speed................2 7.3. - Page 4 11.11.1. General Description ....................... 16 11.11.2. Features ..........................16 11.11.3. Pinning ............................ 16 11.12. PI5V330............................17 11.12.1. General description ....................... 17 11.12.2. Features ..........................17 11.12.3. Pin Descriptions ........................17 11.13. GM6015............................18 11.13.1. General description ....................... 18 11.13.2. Features ..........................18 11.14.
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Page 5: Introduction
1. INTRODUCTION 17” TFT-LCD TV is a Progressive TV control system based on the µ-controller SDA555X, with built-in de- interlacer and scaler. TFT TV is a progressive scan flicker free colour television with PC input, driving an WXGA(1280*768) panel with 16:9 aspect ratio. The chassis is capable of operation in PAL, SECAM, NTSC (playback) colour standards and multiple transmission standards as B/G, D/K, I/I’, and L/L´. -
Page 6: Audio Amplifier Stage With Tpa3003D2
5. AUDIO AMPLIFIER STAGE WITH TPA3003D2 The TPA3003D2 is a 3-W (per channel) efficient, Class-D audio amplifier for driving bridged-tied stereo speakers. The TPA3003D2 can drive stereo speakers as low as 8 Ω. The high efficiency of the TPA3003D2 eliminates the need for external heatsinks when playing music. Stereo speaker volume is controlled with a dc voltage applied to the volume control terminal offering a range of gain from –40 dB to 36 dB. -
Page 7: Rom Characters
7.6. ROM Characters • Shadowing • Contrast Reduction • Pixel by Pixel Shiftable Cursor With up to 4 Different Colours • Support of Progressive Scan and 100 Hz. • 3 X 4Bits RGB-DACs On-Chip • Free Programmable Pixel Clock from 10 MHz to 32MHz •... -
Page 8: Ic Descriptions And Internal Block Diagram
11. IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM LM1117 TDA9885/86 LM2576 TDA1308T LM317T PI5V330 ST24LC21 GM6015 TEA5114A AD9883A TEA6415 MC141585 VPC3230D MC34063 SDA55XX MSP3400G TPA3003D2 DS90C385 NDS8947 11.1. LM1117 11.1.1. General Description The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. It has the same pin-out as National Semiconductor’s industry standard LM317. -
Page 9: Lm2576
11.2. LM2576 11.2.1. General Description The LM2576 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step–down switching regulator (buck converter). All circuits of this series are capable of driving a 3.0 A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version. -
Page 10: Lm317T
11.3. LM317T 11.3.1. Description The LM317T is an adjustable 3 terminal positive voltage regulator capable of supplying in excess of 1.5 amps over an output range of 1.25 to 37 volts. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. -
Page 11: St24Lc21
11.4. ST24LC21 11.4.1. Description The ST24LC21 is a 1K bit electrically erasable programmable memory (EEPROM), organized by 8 bits. This device can operate in two modes: Transmit Only mode and I C bidirectional mode. When powered, the device is in Transmit Only mode with EEPROM data clocked out from the rising edge of the signal applied on VCLK. -
Page 12: Tea5114A
11.5. TEA5114A 11.5.1. 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. -
Page 13: Tea6415
11.6. TEA6415 11.6.1. General description The main function of 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. -
Page 14: Vpc3230D
11.7. VPC3230D 11.7.1. General Description The VPC 323xD is a high-quality, single-chip video front-end, which is targeted for 4:3 and 16:9, 50/60-Hz and 100/120 Hz TV sets. It can be combined with other members of the DIGIT3000 IC family (such as DDP 331x) and/or it can be used with 3rd-party products. - Page 15 SUPPLYD Ground, LLC Circuitry Picture Bus Luma (MSB) Picture Bus Luma Picture Bus Luma Picture Bus Luma SUPPLYD Ground, Luma Output Circuitry SUPPLYD Supply Voltage, Luma Output Circuitry SUPY Picture Bus Luma Picture Bus Luma Picture Bus Luma Picture Bus Luma (LSB) Picture Bus Chroma (MSB) Picture Bus Chroma Picture Bus Chroma...
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Page 16: Sda55Xx (Sda5550)
11.8. SDA55XX (SDA5550) 11.8.1. General description The SDA55XX is a single chip teletext decoder for decoding World System Teletext data as well as Video Programming System (VPS), Program Delivery Control (PDC), and Wide Screen Signalling (WSS) data used for PAL plus transmissions (Line 23). The device also supports Closed caption acquisition and decoding. -
Page 17: Tpa3003D2
11.9. TPA3003D2 11.9.1. General Description The TPA3003D2 is a 3-W (per channel) efficient, Class-D audio amplifier for driving bridged-tied stereo speakers. The TPA3003D2 can drive stereo speakers as low as 8 Ω. The high efficiency of the TPA3003D2 eliminates the need for external heatsinks when playing music. Stereo speaker volume is controlled with a dc voltage applied to the volume control terminal offering a range of gain from –40 dB to 36 dB. - Page 18 VOLUME DC voltage that sets the gain of the amplifier. VREF Analog reference for gain control section. V2P5 2.5-V Reference for analog cells, as well as reference for unused audio input when using single- ended inputs. 17” TFT TV Service Manual 21/09/2004...
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Page 19: Tda9885/86
11.10. TDA9885/86 11.10.1. General description The TDA9885 is an alignment-free single standard (without positive modulation) vision and sound IF signal PLL. 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. Both devices can be used for TV, VTR, PC and set-top box applications. -
Page 20: Tda1308
11.11. TDA1308 11.11.1. General Description The TDA1308 is an integrated class AB stereo headphone driver contained in an SO8 or a DIP8 plastic package. The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable digital audio applications. -
Page 21: Pi5V330
11.12. PI5V330 11.12.1. General description Pericom Semiconductor’s PI5V series of mixed signal video circuits are produced in the Company’s advanced CMOS low-power technology, achieving industry leading performance. The PI5V330 is a true bidirectional Quad 2-channel multiplexer/demultiplexer that is recommended for both RGB and composite video switching applications. -
Page 22: Gm6015
11.13. GM6015 11.13.1. General description The Genesis Microchip 6015RD1 LCD TV reference board is a complete display processor for LCD, PDP and LCOS based televisions. The reference board demonstrates the processing capabilities of the Genesis Microchip gm6015 television controller IC. The gm6015 IC is a full-featured, dual-channel video processor with Genesis industry leading Crystal Ciema Plus video scan conversion. -
Page 23: Ad9883A
11.14. AD9883A 11.14.1. General description The AD9883A is a complete 8-bit, 140 MSPS monolithic analog interface optimized for capturing RGB graphics signals from personal computers and workstations. Its 140 MSPS encode rate capability and full power analog bandwidth of 300 MHz supports resolutions up to SXGA (1280 1024 at 75 Hz). - Page 24 DATA OUTPUTS Data Output, RED Channel Data Output, GREEN Channel GREEN Data Output, BLUE Channel BLUE The main data outputs. Bit 7 is the MSB. The delay from pixel sampling time to output is fixed. When the sampling time is changed by adjusting the PHASE register, the output timing is shifted as well.
- Page 25 pulses during the vertical interval. The COAST signal is generally not required for PC-generated signals. The logic sense of this pin is controlled by Coast Polarity (register 0FH, Bit 3). When not used, this pin may be grounded and Coast Polarity programmed to 1, or tied HIGH (to VD through a 10 k resistor) and Coast Polarity programmed to 0.
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Page 26: Mc141585
11.15. MC141585 11.15.1. General description This is a high performance HCMOS device designed to interface with a micro controller unit to allow colored symbols or characters to be displayed onto a LCD monitor. Because of the large number of fonts, 512 fonts including 496 standard fonts and 16 multi-color fonts, LMOSD2-16 is suitable to be adopted for the multi-language monitor application especially. - Page 27 NC (Pin 3) No connection. (Pin 4) This is the +5V power pin for the chip. HSYNC (Pin 5) This pin inputs a horizontal synchronize signal. It is negative polarity by default. The leading edge of HSYNC synchronizes its internal horizontal timing. The maximum input ratio between PIXin/HSYNC should not greater than 1580 for displaying 12X18 font matrix.
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Page 28: Mc34063
11.16. MC34063 11.16.1. Description The MC34063A Series is a monolithic control circuit containing the primary functions required for DC–to– DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled 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–Inverting applications with a minimum number of external components. -
Page 29: Msp34X0G
11.17. MSP34X0G MSP3400G Multistandard Sound Processor Family 11.17.1. Introduction The MSP 34x0G 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. -
Page 30: Pin Connections
• 5-band graphic equalizer for loudspeaker channel • Spatial effect for loudspeaker channel • Four Stereo SCART (line) inputs, one Mono input; two Stereo SCART outputs • Complete SCART in/out switching matrix • Two I S inputs; one I S output •... - Page 31 SC3_IN_R SCART 3 input, right SC3_IN_L SCART 3 input, left ASG4 AHVSS Analog Shield Ground 4 SC4_IN_R SCART 4 input, right SC4_IN_L SCART 4 input, left LV or AHVSS Not connected AGNDC Analog reference voltage AHVSS Analog ground AHVSS Analog ground Not connected Not connected CAPL_M...
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Page 32: Ds90C385
11.18. DS90C385 11.18.1. General Description The DS90C385 transmitter converts 28 bits of LVCMOS/LVTTL data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. -
Page 33: Nds8947
11.19. NDS8947 11.19.1. General Description These P-Channel enhancement mode power field effect transistors are produced using Fairchild's proprietary, high cell density, DMOS technology. This very high density process is especially tailored to minimize on-state resistance 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 switching, low in-line power loss, and resistance to transients are needed. -
Page 34: Service Menu Settings
12. SERVICE MENU SETTINGS All system, geometry and white balance alignments are performed in production service mode. Before starting the production mode alignments, make sure that all manual adjustments are done correctly. To start production mode alignments enter the maİn menu by pressing “M” button and then press the digits 4, 7, 2 and 5 buttons respectively. -
Page 35: Options Menu Settings
12.2. OPTIONS MENU SETTINGS In order to enter Options menu, move the cursor to Options… parameter by pressing “▲/▼” buttons in Service Menu and press “◄/►” button. The following menu appears on the screen. Options... First APS A.P.S. Headphone Subwoofer Lineout Dolby prologic Equalizer... - Page 36 Options... Equalizer L’ FM Prs Avl On 0 17 : O ff On/Off Enables / disables I Standard. On/Off Enables / disables L Standard. L’ On/Off Enables / disables L’ Standard. On/Off Enables / disables AUS Standard. On/Off Enables / disables NZ Standard. On/Off Enables / disables NM Standard.
- Page 37 Nicam Prs Avl On Adjusts the Nicam Prescaler value, when Automatic Volume Levelling is On. Min. Value: 0000 00000 Max. Value: 00FF 00255 Scart Prs Avl On Adjusts the Scart Prescaler value, when Automatic Volume Levelling is On. Min. Value: 0000 00000 Max.
- Page 38 On/Off Enables / disables Automatic Volume Levelling feature. Top TXT On/Off Enables / disables TopText feature. Fast TXT On/Off Enables / disables FastText feature. TXT Lang Switches between Teletext Language Groups. Min. Value: 0000 00000 Max. Value: 0004 00004 IF Freq Adjusts the IF Frequency value.
- Page 39 MENU On/Off Enables / disables semi-transparent MENU. Enables / disables teletext MIX mode. Enable: 00000001 Disable: 00000000 HOTEL MODE Enables /disables Hotel mode feature. Enable: 00000001 Disable: 00000000 Not used. LDLY Adjusts the Luna / chroma DeLaY value. Min. Value: 0000 00000 Max.
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Page 40: Aps Wss Test Menu
12.3. APS WSS TEST MENU In order to enter Aps Wss Test menu, move the cursor to Aps Wss Test parameter by pressing “▲/▼” buttons in Service Menu and press “◄/►” button. The following menu appears on the screen. Aps Wss Test Programme Search Pdc Format 1... -
Page 41: Block Diagram
13. BLOCK DIAGRAM 17"W BLOCK DIAGRAM +12V CARD +12V PL303 IR_IN 3.3V CONTROLLER Power Supply 2.5V KEYPAD SDA5550M PL300 CARD 1.8V SDRAM MENU S+5V PROM S3.3V S2.5V SOURCE STBY S1.8V GENERATOR MC14 SCALER R(0-7) VIDEO B(0-7) DEINTERLACER CVBS IF G(0-7) DECODER TUNER IF FRONTEND... -
Page 42: Circuit Diagrams
14. CIRCUIT DIAGRAMS 17” TFT TV Service Manual 21/09/2004... - Page 43 17” TFT TV Service Manual 21/09/2004...
- Page 44 17” TFT TV Service Manual 21/09/2004...
- Page 45 17” TFT TV Service Manual 21/09/2004...
- Page 46 17” TFT TV Service Manual 21/09/2004...
- Page 47 17” TFT TV Service Manual 21/09/2004...
- Page 48 17” TFT TV Service Manual 21/09/2004...
- Page 49 17” TFT TV Service Manual 21/09/2004...
- Page 51 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: [email protected] Fax: +39 02 48786381/2 Email: [email protected] HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...