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Related Forum topics
 
 

Added by admin (418)

Added on: 06/04/2019
Latest update: 10/12/2023

 [Click here for FORUM URL] 

MUSE Decoder

Hitachi HD-M20 (1992) 

Country  Japan
Color   (Silver)
Market  Consumer
Price  750000 JPY
Barcode/UPC   ???
Voltage   AC 100V, 50/60 Hz
Power   36 W
Weight  5.6 kg
Dimensions  ??? (W) x  ??? (H) x  ??? (D) mm

 MUSE / HDVS / Hi-Vision

MUSE DECODER: this Device can decode MUSE signal to 1080i

  MUSE SPECIFIC INPUTS

  MUSE SPECIFIC OUTPUTS

    Bitstream output x 2
    AFC (Automatic Frequency Control) sync signal to another device x 2


 INPUT/OUTPUT CONTROLS

   IR/Control (Infrared) IN x 1
   IR/Control (Infrared) OUT x 1


 EXTRA POWER OUTLET

   Unswitched (always on) power outlet x 1


 VIDEO INPUTS

   MUSE input typically coming from a LD Player x 1
    MUSE BS/CS Satellite dedicated input x 2


 AUDIO OUTPUTS

   RCA 4 channels (L/R/C/Surround) x 1
   RCA 5 channels (L/R/C/SL/SR) x 1
   Dual Coaxial MUSE Digital Audio output (Ch1/2 + Ch3/4) x 1
   Dual TOSLINK MUSE Digital Audio output (Ch1/2 + Ch3/4) x 1

Internal DAC for Stereo => PCM1700 (Burr-Brown)
Internal DAC for Multi-channel => PCM1700 (Burr-Brown)


 VIDEO OUTPUTS

   Y/Pb/Pr analog component x 1
   H+V additional Horizontal and Vertical Sync x 1
   Y/Pb/Pr analog component x 1
   H+V additional Horizontal and Vertical Sync x 1
   MUSE RCA output x 1

 Additional Information by drewmanfu0 (1)   01/11/2023 - Last update: 22/11/2023 

Remote controller model C-JX2

 Additional Information by admin (418)   10/12/2023 

Added the picture of the HITACHI internal January 1993 journal showing all their new products and new industrial developments.

New MUSE decoder with lower price

Because HDTV has a higher resolution it can contain several times more information than current television systems. Therefore the "MUSE protocol" is required, which compresses the signal, broadcasts it, and then decompresses and plays the received signal on the receiver.

We reduced the number of signal processing circuits, which were previously compose of 150 LSIs, to approximately 30, improving performance, reducing size and weight (from 7.6kg to 5.6kg), and reducing power consumption (from 65W to 36W) and lower prices (from standard 1,750,000 to 750,000 yen).