ZT: Philips lhh1000, 900R, 800R

tmd002 · 发表于 2008-2-15 11:21:04

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COMPACT DISC PLAYER SYSTEM 600,000
As for the D/A converter of CD-95, Philips make LSI (TDA1541A-S1) was loaded. TDA1541A-S1 From midst of up-to-date device?A version?of the multiple bit type of Philips of that time furthermore [serekutetsudotai] which is selected With [pu], with type turn the Crown mark was stamped. As a D/A converter, at total temperature width, the very little signal time The high linearity, 1LSB at 0.5LSB and usual level was guaranteed.

With CD-95, furthermore per channel to load 2 D/A converters, adopting push pull D/A conversion system It was. 2 D/A converters have reached correct phase and combination of the opposite phase, by the fact that the ripple mark is synthesized in-phase component It is cancelled, it was something which is the effect that also the occasional several times strain is offset simultaneously and is decreased substantially.

CDM-1 was loaded to CD drive mechanism. As for this Philips where basic structure is completed in 1983 With proud mechanism, it was something which is loaded even in LHH-2000 and LHH-1000 and the like. [suingua] of 1 beam systems With [mupitsukuatsupu], in the lens the glass lens of the [rodenshiyutotsuku] corporation make where aberration is superior little in temperature characteristic harvesting/adopting Business it did, actualized high pickup ability.
Corresponded to 8cmCD single new type was loaded to servo the swing arm is controlled. Sensor Cutting to the circuit factor of the optimum which which detects the disk with, with circuit constant, 12cmCD and 8cmCD corresponds respectively Being something which, it changes, it was designed in such a way that you can obtain optimum working condition vis-a-vis 12cm and 8cm whichever CD.

As for the power circuit, large-sized power transformer of the extent which is a match to the power amplifier of the single unit bulk (68,000礔?) high quality They were powerful ones where the custom electrolytic condenser is thrown. In the electrolytic condenser the sound quality concern type which uses the new material You had adopted. Power transformer, divides the secondary winding the for digital circuit, the for audio circuit and into the one for display circuit, Independence conversion was assured. Discrete constitution to be adopted by also the regulator circuit, interference and noise from the power source section You held down.

In order to hold down the deterioration of the sound quality with the vibration, measure to the vibration was taken in the section. CDM-1 mechanism itself, [suin] Rigid improvement of [guamu] and adoption etc of the die-cast base were done, were designed to be the structure which is strong in the vibration. Furthermore, this The aluminum die-cast chassis to which vibration-proof measure administers going to the side and copper plating was adopted for also the base where it supports. Frame The die-cast make side panel, the firm sandwich structure by the 3mm thick sabot, Marantz individual ARC (Alminium Raft Ceiling) It had become firm ones depending upon the top cover and the like of structure. As for ARC structure, [rahuto] (raft) cutting As it increases strength with 3 piece structures which are administered, mode of vibration it was something which spreads.
As for the pre-amp for the laser signal which you can do to also internal layout examination, is mounted usually inside the chassis rotary system?
And others being isolated, it tried not to receive the influence of the vibration. In addition, digital circuit, audio circuit and servo circuit, Mutual interference was held down the micro-computer and display circuit each one to the baseplate constitution which becomes independent.

Functionally, the function, individual FTS in addition to usual [puroguramumemori] function, was loaded. As for FTS, (Favourite Track Selection) with abbreviation, programming the tune of the taste in every disk, memory it is possible semipermanently With function, up to maximum of 226 CD memory is possible, if 1 5 tunes if 150 and 20 tunes call up to approximately 70 in condition memory It was something which is possible.
As search function, direct selection of music, program selection of music, index search, time search and [shiyatsu] by 10 keys Full play and the like was loaded. As for program memory 20 tunes, as for repeat mode all the tune repeats and repeat between A-B Was equipped.
As for display, from 24 tune calendar types, as for time indication, remaining time of the lap and 1 tunes of performance tune and all tune can be indicated It had become the sea urchin. As for front panel with the gold pear area finish, usually are used other than seven buttons which 10 keys and the like sea phosphorus The [tsu] which supplied does inside [gupaneru] and the design which comes was feature. As for the output terminal, as for analog fixing output and the variable output which is linked to master volume, as for digital 2 systems of light and the same axis Output was had.

Like above, CD-95 does with one somatotype CD player where the degree of completion which is born under the relationship whose Philips is deep is high, It is. In order as for the design where balance comes off there was about to be connected to also the impression of the sound, had the sound which obtains mean, to inquire about music They were 1 units whose degree of completion is high as an instrument.

LHH-1000 SPECIFICATIONS

CD DRIVE UNIT LHH-1001

Digital output	[koakishiyaru] ?, optical ?
Maximum external size	455W?03H?45Dmm
Weight	14kg

D/A converter UNIT LHH-1002

D/A converter	16 bit 4 time over sampling ?A version?digital filter L/R independence 2DAC
Filter	3 next vessel filters
Digital input	[koakishiyaru] ? and optical ?
DAT input/output	[koakishiyaru] ? and optical ?
Analog output	Balance ? and imbalance ?
Sampling frequency	44.1kHz and 48kHz (automatic operation change)
Frequency characteristic	2Hz~20kHz?.1dB (imbalance)
SN ratio	Above 106dB
Dynamic range	Above 97dB
Maximum external size	455W?03H?45Dmm
Weight	14kg

[ 本帖最后由 tmd002 于 2008-2-15 11:42 编辑 ]

tmd002 · 发表于 2008-2-15 11:39:49

Philips LHH900R 1996

Price 3700 dollar
1bit system bitstream type DAC7 Single differential mode Accompanying CDM4 mechanic production end 500 unit limitation productions. CDM4/36 mechanic on-board LHH last model. Satoru LHH-R series real parent and Suzuki All the series optimum masterpieces which you are proud. Sound is high speed system, but There is a thickness gloss appearance impression with all resisters, The superb article which makes many LHH fans groan.

Specification
Frequency characteristic: 5Hz~20KHz?.5dB
Dynamic range: Above 98dB
SIGNAL-TO-NOISE RATIO ratio: Above 100dB
Channel separation: Above 96dB
All the harmonic distortion factors: 0.005% or less
Electric power consumption: 28W
Maximum external size: 440 (W) x137 (H) x349(D)
Mass: 16.8Kg

tmd002 · 发表于 2008-2-15 11:41:26

Philips LHH800R 1993

Price 3700 dollar
1bit system bitstream type DAC7 Single differential mode With DAC7 as single NFB was abolished even in digital type power source Non return power source is adopted, Depending on the non return conversion which it is thorough As for sound, mastering high speed In the mild system which is represented in LHH700 It is supported even in the person who feels dissatisfaction. Design, LHH900R compared to Side panel [katsukoii].

Specification
Frequency characteristic: 5Hz~20KHz?.5dB
Dynamic range: Above 98dB
SIGNAL-TO-NOISE RATIO ratio: Above 100dB
Channel separation: Above 96dB
All the harmonic distortion factors: 0.005% or less
Electric power consumption: 28W
Maximum external size: 475 (W) x143 (H) x359(D)
Mass: 18.5Kg

tmd002 · 发表于 2008-2-15 11:45:37

Philips LHH0502 Professional Compact Discs Reproduction System

"Philips realized the dream of all the CD fans with the professional CD player of the future."

CD fans dream of it, professionals sake him: the perfect CD player.

This Top player looks like a medium-sized computer system and has as much together with a conventional player as a Porsche 956 with a Golf GTI. CD innovator Philips has developed and built this perfect CD player. Her name is correct 'LHH 0502 Professional Compact discs Reproduction System' and is a professional CD-Equipment designed for radio stations. Therefore a Prototype of LHH 0502 went on a trip around the world to visit radio studios.

The super-Philips CD player can do things that no other player can.
It consists of a total of five components: a central control unit, a keyboard, a monitor and two CD players. The heart of the plant is the "CD-Drive Control System", an inconspicuous, dark grey cabinet, which hides intelligent computer-electronics. Special hand-built ribbon cable connects the central control unit with two equally CD players.

At first glance it recognizes as the Philips CD-player-300, father of a whole family of CD-Players. Among other things, also the Marantz CD-73. He lost all function keys except for buttons for opening and closing the drawer. These buttons are not necessary, however, because the central control unit rules over all the functions and is the important component.

With a ultraflat elegant keyboard, two identical keyboards - one for each player - give the Compact Disc Jockey the players of the future commands that no conventional player can do. A numeric keypad and a dial complete the keyboard.

Communication with the man at the keyboard over a video monitor. On him appear all commands and their confirmation, this time and track ads for both players and a whole series of additional data, the normal CD player conceal.

What makes this "Professional Compact Disc Reproduction System?

When switchin on the CD player, the screen flickers with several display areas for each player. Three displays show the number, duration and the time remaining balance of the current title. As long as the signal "Insert disc" prompts these three fields remain empty. When given the command, the computer behaves like many players at home: track and time information in the appropriate fields light up.

What he manages more than an ordinary player, will show when pressing on the two function keys on the keyboard. In the two lower segments of the screen, he served both players separately for a function desire menu, which offers several additional ads: for example, the total playing time of the CD or the catalogue numbers of the inserted cd's. It can also show a list with all the title numbers and their total play time.

The menu is presented by horizontal fields lying side by side. A small arrow helps to direct to the desired function. Together with pressing on the "Enter" button, the menu disappears and the total elapsed time of a CD or catalogue number flickers on the title list.

If you have selected on the two CDs a piece of music that you liked to play, it shows the title number on the "track" button on the professional keyboard, and then operated the "Enter" key - in less than two seconds, the screen confirmed for both players: Title found.

Now, the professional sound engineer - provided that the player is connected to a mixer, each with a slider for both CD player connected - the two tracks to listen trial. The player stops and with the grip knob jump to the man at the keyboard quickly or slowly to the CD from pit lane to pit lane. The laser beam to jump in tiny steps, similar to the one hanging needle on a analog turntable in the same track and read back on this track accommodated musical sequence repeatedly. Now turning to search as long as the regulator, until you found the right track. The "Dail" display on the screen with minutes, seconds and called Frams (1 / 75 second, equal to 13.3 milliseconds), in the time code each CD is divided, in addition to providing Mithormoglichkeit assistance. In this way it lets each individual stroke or sound exactly the same direction.

The second way to find a specific spot on the CD, let's deal with the time programming. First example: The radio Dicjokey wants to play song number seven after one minute and 12 seconds. First he chooses with the "Track" function the seventh title. Then he prints briefly on the "time" button and types "1", "comma", "1" and "2". Then he acknowledges the input with the "Enter" button and the system is programmed.

Second example: Up to the news still remain exactly two minutes and 37 seconds before the gong to the last sound of a title fade. Now, the jockey chooses, the "Left Time" mode (Time) and type "2", "comma", "3" and "7"; rejoined the "Enter" key printed, and now the system is exactly the last two minutes 37 seconds of the title over the transmitter.

During a stucco runs, prepares the CD-jockey in the same way the music started on the second player. In the crucial moment, he slider number one and number two back up and thus has the perfect transition between two Musikstucken. Such possibilities wish to CD Freaks furs living room - beilspielsweise the perfect music from CD to tape to transfer.

The price of the CD-dreamplayer will be at least 30,000 dollar. Furthermore, the father of the system, "Optical Disc Mastering Group" in the Philips headquarters in Holland Eindhoven, has other plans. The goals for Leo M. Greep, product manager of this department, are: "The LHH 0502 serves as a testing model for future professional systems. We want to gain experience, then introduce it into such units".

In the autumn of this year (1984), the new generation of professional equipment will be presented: The mutated cdplayer of the LHH 0502 will be delivered to broadcasters. But Philips has more plans. Special versions for disco clubs will follow.

The Philips LHH in Detail

The system consists of:
- CD Drive Control System LHH 0512
- 2 CD drives LHH 0511
- Control Unit LHH 0513 - Video Monitor

Bedienungsmogelichkeiten per player about Keyboard:
Individual lane choice by numeric keypad, time programming for a start-time remaining time by numeric keypad, taktgenaue search feature with adjustable speed and an accuracy of 13.3 milliseconds, function menu choice over cursor keys for Geamstzeit played, display of catalogue number, Tittelliste with playing time, production code and Rest time.

Connection:
Video monitor, printer for listing all played CD title (for the radio to GEMA payroll important), mixer with a pulse encoder for automatic starting players.

[ 本帖最后由 tmd002 于 2008-2-15 11:48 编辑 ]