Hitachi CP2896TA Wartungshandbuch Seite 10

Contents
MICROPOWER CONTROL ......................................................................................................................................................... 1
POWER SUPPLY ........................................................................................................................................................................ 2
RECEPTION ................................................................................................................................................................................ 4
AUDIO SECTION ........................................................................................................................................................................ 5
Multistandard Sound Processor, ICa2 ................................................................................................................................ 5
Audio Power Amplifier, ICa1 ............................................................................................................................................... 6
Headphone Amplifier, ICa3 ................................................................................................................................................. 6
VIDEO SECTION ........................................................................................................................................................................ 7
Video Matrix Switch, ICq1 ................................................................................................................................................... 7
Colour Decoder / Sync Processor, ICd1 ............................................................................................................................. 7
Baseband Delay Line, ICd3 ................................................................................................................................................. 8
Feature boxes, DB7** ......................................................................................................................................................... 9
Feature box DB711 .............................................................................................................................................................. 9
Analog to digital converter, ic9 ........................................................................................................................................... 9
Field memory, ic14 ............................................................................................................................................................ 10
IQTV2 circuit, ic18 .............................................................................................................................................................. 10
DPLL1 circuit, ic11 ............................................................................................................................................................. 11
Deflection Controller TDA9151, IC17 ............................................................................................................................... 11
Feature box DB710 ............................................................................................................................................................ 12
Feature box DB700 ............................................................................................................................................................ 12
RGB Video Processor TDA4780, ICt1 ............................................................................................................................... 13
CRT module ........................................................................................................................................................................ 14
Teletext ............................................................................................................................................................................... 15
Megatext SDA5273, ICr1 ................................................................................................................................................... 15
Megatext Plus SDA5275, ICr1 ........................................................................................................................................... 15
Teletext memory DRAM, icr2 ............................................................................................................................................ 15
CONTROL SYSTEM ................................................................................................................................................................. 16
Program memory, ICf1 ...................................................................................................................................................... 16
NV RAM, ICf2 ..................................................................................................................................................................... 16
Microcontroller, icf3 ........................................................................................................................................................... 16
AND gate, icf4 .................................................................................................................................................................... 17
Reset circuit, icf5 ................................................................................................................................................................ 17
DEFLECTION STAGES ............................................................................................................................................................. 19
Vertical deflection .............................................................................................................................................................. 19
Horizontal deflection ......................................................................................................................................................... 19
OPTIONS .................................................................................................................................................................................. 21
Active Subwoofer .............................................................................................................................................................. 21
Comb Filter module, CF700 .............................................................................................................................................. 21
Scan Velocity Modulation module, VM600 ..................................................................................................................... 22
Audio Feature modules, AR700 and AR701 .................................................................................................................... 23
Adjustable Audio Output module, TA700 ........................................................................................................................ 27
Scart 3 + VGA-audio module, TA710 ............................................................................................................................... 27
Scart 3 module, TA711 ...................................................................................................................................................... 27
Picture in Picture module, PP700 ..................................................................................................................................... 27
Picture in Picture module, PP710 ..................................................................................................................................... 28
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