Hitachi 17LD4220, Service Manual

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17” TFT TV Service Manual 21/09/2004
TABLE OF CONTENTS
1. INTRODUCTION ...................................................................................................................................... 1
2. TUNER...................................................................................................................................................... 1
3. IF PART (TDA988X) ................................................................................................................................. 1
4. MULTI STANDARD SOUND PROCESSOR ............................................................................................ 1
5. AUDIO AMPLIFIER STAGE WITH TPA3003D2 ...................................................................................... 2
6. POWER .................................................................................................................................................... 2
7. MICROCONTROLLER SDA55XX............................................................................................................ 2
7.1. General Features............................................................................................................................... 2
7.2. External Crystal and Programmable Clock Speed............................................................................ 2
7.3. Microcontroller Features.................................................................................................................... 2
7.4. Memory.............................................................................................................................................. 2
7.5. Display Features................................................................................................................................ 2
7.6. ROM Characters................................................................................................................................ 3
7.7. Acquisition Features .......................................................................................................................... 3
7.8. Ports .................................................................................................................................................. 3
8. SERIAL ACCESS CMOS 16K (2048*8) EEPROM ST24C16 .................................................................. 3
9. CLASS AB STEREO HEADPHONE DRIVER TDA1308 ......................................................................... 3
10. SAW FILTERS.......................................................................................................................................... 3
11. IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM ....................................................................... 4
11.1. LM1117.............................................................................................................................................. 4
11.1.1. General Description ................................................................................................................. 4
11.1.2. Features .................................................................................................................................... 4
11.1.3. Applications .............................................................................................................................. 4
11.1.4. Connection Diagrams .............................................................................................................. 4
11.2. LM2576.............................................................................................................................................. 5
11.2.1. General Description ................................................................................................................. 5
11.2.2. Features .................................................................................................................................... 5
11.2.3. Pin description ......................................................................................................................... 5
11.3. LM317T ............................................................................................................................................. 6
11.3.1. Description ................................................................................................................................ 6
11.3.2. Features .................................................................................................................................... 6
11.4. ST24LC21 ......................................................................................................................................... 7
11.4.1. Description ................................................................................................................................ 7
11.4.2. Features .................................................................................................................................... 7
11.4.3. Pin connections ........................................................................................................................ 7
11.5. TEA5114A ......................................................................................................................................... 8
11.5.1. General description ................................................................................................................. 8
11.5.2. Features .................................................................................................................................... 8
11.5.3. Pin Connections ....................................................................................................................... 8
11.6. TEA6415............................................................................................................................................ 9
11.6.1. General description ................................................................................................................. 9
11.6.2. Features .................................................................................................................................... 9
11.6.3. Pinning ...................................................................................................................................... 9
11.7. VPC3230D....................................................................................................................................... 10
11.7.1. General Description ............................................................................................................... 10
11.7.2. Pin Connections and Short Descriptions ............................................................................ 10
11.8. SDA55XX (SDA5550)...................................................................................................................... 12
11.8.1. General description ............................................................................................................... 12
11.9. TPA3003D2 ..................................................................................................................................... 13
11.9.1. General Description ............................................................................................................... 13
11.9.2. Features .................................................................................................................................. 13
11.9.3. Pinning .................................................................................................................................... 13
11.10. TDA9885/86 .................................................................................................................................... 15
11.10.1. General description ............................................................................................................... 15
11.10.2. Features .................................................................................................................................. 15
11.10.3. Pinning .................................................................................................................................... 15
11.11. TDA1308 ......................................................................................................................................... 16