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HITACHI AV3000E
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English, German, French
Price: $4.99

Description of HITACHI AV3000E Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English, German, French

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Text excerpt from page 7 (click to view)
CRN

Type

Description

Remarks Supply voltage: +5V at pin 7 and +33V at pin 9 2 Control by I C, SDA at pin 5 and SCL at pin 4. Picture carrier 33.90MHz, picture to sound carrier distance 6.5MHz for standard L Sound carrier 40.40MHz for standard L Supply voltage : +8V at pin 11 and 48 (AS) 2 Control by I C, SDA at pin 47 and SCL at pin 46 Nominal centre freq. Fn1=6.0MHz and Fn2=6.5MHz Nominal centre freq. Fn1=5.5MHz and Fn2=5.742MHz

UV1316/A TUN100 1G-3 313914716781 SAW100 K3953M SAW101 K9456M IC100 TR100 TR101 X100 X101 TDA9321H TPWA01B TPWA04B

Asymmetric type tuner

SAW filter SAW filter Video Chroma and Video switch

Crystal Crystal

3.58MHz 4.43MHz

4.2.1.

IF Demodulator and Video Chroma

Demodulated video signal is output from pin 10 going to sound traps. There are two sound traps, TR100 for I/L signal and TR101 for BG, outputs from which are switched by SOUND-SWITCH from IC301 pin 5. After group delay correction at pin 13, it is connected to pin 14 where TV picture is supplied into video switch. The TV signal from pin13 is also connected to SCART1 as TV signal output. Quasi Split Sound converted from SIF input is output at pin 5 to connect with sound decoder IC301. H and V sync pulses are output at pin 60 and 61 to go to FC/MSC for Synchronisation to convert progressive scan. H pulse must be inverted by Q126. When selecting one of video signal in video switch of IC100, CVBS signal is going to COMB filter if the video is CVBS PAL/NTSC format. Then Y/C separated signal is coming back at pin 28 and 29. The clock must be provided from pin 30. The video or Y/C signal selected pass through video chroma section and finally converted to YUV format at pin 49, 50, 51. IC100 is supplied 4.43MHz and 3.58MHz clock from crystal X100 and X101, which is automatically selected according to the signal received. 2 RGB inputs are also switched at the last stage in IC100. RGB signals are also converted to YUV. Video Switch.

3 AV3000 AVC Unit Service Manual

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